10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

xQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the Quarterly Period Ended August 31, 2017

or

¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                  to                  

Commission File No. 1-6263

AAR CORP.

(Exact name of registrant as specified in its charter)

Delaware	36-2334820
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

One AAR Place, 1100 N. Wood Dale Road Wood Dale, Illinois	60191
(Address of principal executive offices)	(Zip Code)

(630) 227-2000

(Registrant’s telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes x No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company.  See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer x Accelerated filer o Non-accelerated filer o Smaller reporting company o Emerging growth company o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o No  x

As of August 31, 2017, there were 34,622,093 shares of the registrant’s Common Stock, $1.00 par value per share, outstanding.

AAR CORP. and Subsidiaries

Quarterly Report on Form 10-Q

For the Quarter Ended August 31, 2017

Table of Contents

		Page
Part I — FINANCIAL INFORMATION
Item 1.	Financial Statements
	Condensed Consolidated Balance Sheets	3
	Condensed Consolidated Statements of Income	5
	Condensed Consolidated Statements of Comprehensive Income	6
	Condensed Consolidated Statements of Cash Flows	7
	Condensed Consolidated Statement of Changes in Equity	8
	Notes to Condensed Consolidated Financial Statements	9
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	17
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	21
Item 4.	Controls and Procedures	21
Part II — OTHER INFORMATION
Item 1A.	Risk Factors	22
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	22
Item 6.	Exhibits	22
Exhibit Index		23
Signature Page		24

2

PART I — FINANCIAL INFORMATION

Item 1 — Financial Statements

AAR CORP. and Subsidiaries

Condensed Consolidated Balance Sheets

As of August 31, 2017 and May 31, 2017

(In millions, except share data)

ASSETS

	August 31,		May 31,
	2017		2017
	(Unaudited)
Current assets:
Cash and cash equivalents	$	15.1	$	10.3
Accounts receivable, less allowances of $6.1 and $5.8, respectively	264.7		251.4
Inventories	473.0		483.1
Rotable spares and equipment on or available for short-term lease	118.2		118.0
Deposits, prepaids and other	33.7		25.7
Total current assets	904.7		888.5
Property, plant and equipment, net of accumulated depreciation of $398.4 and $413.9, respectively	198.1		201.9
Other assets:
Goodwill	115.5		115.4
Intangible assets, net of accumulated amortization of $30.9 and $29.8, respectively	31.7		32.8
Rotable assets supporting long-term programs	167.7		159.6
Other	114.0		105.9
	428.9		413.7
	$	1,531.7	$	1,504.1

The accompanying Notes to Condensed Consolidated Financial

Statements are an integral part of these statements.

3

AAR CORP. and Subsidiaries

Condensed Consolidated Balance Sheets

As of August 31, 2017 and May 31, 2017

(In millions, except share data)

LIABILITIES AND EQUITY

	August 31,			May 31,
	2017			2017
	(Unaudited)
Current liabilities:
Current maturities of long-term debt	$	2.0		$	2.0
Accounts and trade notes payable	176.3			177.4
Accrued liabilities	133.8			155.7
Total current liabilities	312.1			335.1
Long-term debt, less current maturities	189.0			155.3
Deferred tax liabilities	37.7			37.2
Other liabilities and deferred income	68.2			62.3
	294.9			254.8
Equity:
Preferred stock, $1.00 par value, authorized 250,000 shares; none issued	—			—
Common stock, $1.00 par value, authorized 100,000,000 shares; issued 45,300,786 and 45,175,302 shares at cost, respectively	45.3			45.2
Capital surplus	460.3			460.8
Retained earnings	735.9			727.9
Treasury stock, 10,678,693 and 10,820,844 shares at cost, respectively	(277.8		)	(279.8		)
Accumulated other comprehensive loss	(39.0		)	(39.9		)
Total equity	924.7			914.2
	$	1,531.7		$	1,504.1

The accompanying Notes to Condensed Consolidated Financial

Statements are an integral part of these statements.

4

AAR CORP. and Subsidiaries

Condensed Consolidated Statements of Income

For the Three Months Ended August 31, 2017 and 2016

(Unaudited)

(In millions, except share data)

	Three Months Ended
	August 31,
	2017			2016
Sales:
Sales from products	$	244.7		$	213.9
Sales from services	194.5			190.9
	439.2			404.8
Cost and operating expenses:
Cost of products	199.6			179.5
Cost of services	175.1			163.8
Selling, general and administrative	48.0			44.8
	422.7			388.1
Operating income	16.5			16.7
Interest expense	(1.7		)	(1.3		)
Income from continuing operations before provision for income taxes	14.8			15.4
Provision for income taxes	4.2			5.5
Income from continuing operations	10.6			9.9
Loss from discontinued operations	—			(0.4		)
Net income	$	10.6		$	9.5
Earnings per share — basic:
Earnings from continuing operations	$	0.31		$	0.29
Loss from discontinued operations	—			(0.01		)
Earnings per share — basic	$	0.31		$	0.28
Earnings per share — diluted:
Earnings from continuing operations	$	0.31		$	0.29
Loss from discontinued operations	—			(0.01		)
Earnings per share — diluted	$	0.31		$	0.28

The accompanying Notes to Condensed Consolidated Financial

Statements are an integral part of these statements.

5

AAR CORP. and Subsidiaries

Condensed Consolidated Statements of Comprehensive Income

For the Three Months Ended August 31, 2017 and 2016

(Unaudited)

(In millions)

	Three Months Ended
	August 31,
	2017		2016
Net income	$	10.6	$	9.5
Other comprehensive income (loss), net of tax expense (benefit):
Currency translation adjustments, net of tax of $0 and $0.1	0.6		(1.5		)
Pension and other post-retirement plans:
Amortization of actuarial loss and prior service cost included in net income, net of tax of $0.1 and $0.1	0.3		0.3
Other comprehensive income (loss), net of tax	0.9		(1.2		)
Comprehensive income	$	11.5	$	8.3

The accompanying Notes to Condensed Consolidated Financial

Statements are an integral part of these statements.

6

AAR CORP. and Subsidiaries

Condensed Consolidated Statements of Cash Flows

For the Three Months Ended August 31, 2017 and 2016

(Unaudited)

(In millions)

	Three Months Ended
	August 31,
	2017			2016
Cash flows used in operating activities:
Net income	$	10.6		$	9.5
Loss from discontinued operations	—			0.4
Income from continuing operations	10.6			9.9
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and intangible amortization	14.6			12.4
Stock-based compensation	2.6			2.5
Amortization of overhaul costs	3.0			4.5
Deferred tax provision (benefit)	0.2			(0.9		)
Gain on asset disposal	—			(2.6		)
Changes in certain assets and liabilities:
Accounts receivable	(13.2		)	9.7
Inventories	10.8			3.0
Rotable spares and equipment on or available for short-term lease	(0.2		)	(0.7		)
Equipment supporting long-term programs	(11.8		)	(17.3		)
Accounts and trade notes payable	(0.7		)	(8.4		)
Accrued and other liabilities	(29.6		)	(5.8		)
Other, primarily program and overhaul costs	(6.4		)	(6.8		)
Net cash used in operating activities — continuing operations	(20.1		)	(0.5		)
Net cash used in operating activities — discontinued operations	(0.5		)	(0.6		)
Net cash used in operating activities	(20.6		)	(1.1		)
Cash flows used in investing activities:
Property, plant and equipment expenditures	(8.2		)	(9.4		)
Proceeds from asset disposals	1.3			3.0
Investment in aircraft joint ventures	—			(0.2		)
Net cash used in investing activities — continuing operations	(6.9		)	(6.6		)
Cash flows provided from (used in) financing activities:
Short-term borrowings, net	34.0			7.0
Reduction in long-term borrowings	—			(5.0		)
Cash dividends	(2.6		)	(2.6		)
Purchase of treasury stock	(5.2		)	(14.8		)
Stock option exercises	6.5			0.6
Other	(0.4		)	(0.4		)
Net cash provided from (used in) financing activities — continuing operations	32.3			(15.2		)
Effect of exchange rate changes on cash	—			(0.4		)
Increase (Decrease) in cash and cash equivalents	4.8			(23.3		)
Cash and cash equivalents, beginning of period	10.3			31.2
Cash and cash equivalents, end of period	$	15.1		$	7.9

The accompanying Notes to Condensed Consolidated Financial

Statements are an integral part of these statements.

7

AAR CORP. and Subsidiaries

Condensed Consolidated Statements of Changes in Equity

For the Three Months Ended August 31, 2017

(Unaudited)

(In millions)

												Accumulated
												Other
	Common		Capital			Retained			Treasury			Comprehensive
	Stock		Surplus			Earnings			Stock			Income (Loss)			Total Equity
Balance, May 31, 2017	$	45.2	$	460.8		$	727.9		$	(279.8	)	$	(39.9	)	$	914.2
Net income	—		—			10.6			—			—			10.6
Cash dividends	—		—			(2.6		)	—			—			(2.6		)
Stock option activity	—		(0.6		)	—			6.6			—			6.0
Restricted stock activity	0.1		0.1			—			0.6			—			0.8
Repurchase of shares	—		—			—			(5.2		)	—			(5.2		)
Other comprehensive income, net of tax	—		—			—			—			0.9			0.9
Balance, August 31, 2017	$	45.3	$	460.3		$	735.9		$	(277.8	)	$	(39.0	)	$	924.7

The accompanying Notes to Condensed Consolidated Financial

Statements are an integral part of these statements.

8

AAR CORP. and Subsidiaries

Notes to Condensed Consolidated Financial Statements

August 31, 2017

(Unaudited)

(Dollars in millions, except per share amounts)

Note 1 — Basis of Presentation

AAR CORP. and its subsidiaries are referred to herein collectively as “AAR,” “Company,” “we,” “us,” and “our,” unless the context indicates otherwise.  The accompanying Condensed Consolidated Financial Statements include the accounts of AAR and its subsidiaries after elimination of intercompany accounts and transactions.

We have prepared these statements without audit, pursuant to the rules and regulations of the United States Securities and Exchange Commission (“SEC”).  The Condensed Consolidated Balance Sheet as of May 31, 2017 has been derived from audited financial statements.  To prepare the financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”), management has made a number of estimates and assumptions relating to the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities.  Actual results could differ from those estimates.  Certain information and note disclosures, normally included in comprehensive financial statements prepared in accordance with GAAP, have been condensed or omitted pursuant to such rules and regulations of the SEC.  These Condensed Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and notes thereto included in our latest annual report on Form 10-K.

In the opinion of management, the condensed consolidated financial statements reflect all adjustments (which consist only of normal recurring adjustments) necessary to present fairly the condensed consolidated financial position of AAR CORP. and its subsidiaries as of August 31, 2017, the Condensed Consolidated Statements of Income, Condensed Consolidated Statements of Comprehensive Income, and the Condensed Consolidated Statements of Cash Flows for the three-month periods ended August 31, 2017 and 2016, and the Condensed Consolidated Statement of Changes in Equity for the three-month period ended August 31, 2017.  The results of operations for such interim periods are not necessarily indicative of the results for the full year.

New Accounting Pronouncements

In May 2014, the FASB issued Accounting Standards Update (“ASU”) No. 2014-09, Revenue from Contracts with Customers, which provides guidance for revenue recognition.  This ASU affects any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of non-financial assets.  This ASU will supersede the revenue recognition requirements in Accounting Standards Codification (“ASC”) 605, Revenue Recognition, and most industry-specific guidance.  This ASU will also supersede certain cost guidance included in Subtopic 605-35, Revenue Recognition-Construction-Type and Production-Type Contracts.  In August 2015, the FASB issued ASU No. 2015-14 which deferred the effective date of the new standard by one year which will make the new standard effective for us beginning June 1, 2018.  The ASU may be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized as of the date of initial application.  We continue to analyze and document our significant customer contracts to evaluate the potential impact of the adoption of this new ASU.  We have not yet selected a transition method for adoption nor determined the potential effect on our accounting policies and consolidated financial statements.

In February 2016, the FASB issued ASU 2016-02, Leases.  This ASU amends the existing accounting standards for lease accounting, including requiring lessees to recognize most leases on their balance sheets, including those classified as operating leases under the current accounting guidance.  In addition, this ASU will require new qualitative and quantitative disclosures about the Company’s leasing activities.  This new standard will be effective for us beginning June 1, 2019 with early adoption permitted.  This ASU requires a modified retrospective transition approach for all leases existing at, or entered into after, the date of initial application, with an option to use certain transition relief.  We are in the preliminary phases of assessing the effect of this ASU on our portfolio of leases. While this assessment continues, we have not yet selected a transition date nor have we determined the effect of this ASU on our consolidated financial statements.

9

AAR CORP. and Subsidiaries

Notes to Condensed Consolidated Financial Statements

August 31, 2017

(Unaudited)

(Dollars in millions, except per share amounts)

In March 2016, the FASB issued ASU 2016-09, “Improvements to Employee Share-Based Payment Accounting,” which amends ASC Topic 718, Compensation — Stock Compensation.  This ASU requires excess tax benefits or deficiencies for share-based payments be recorded in the period shares vest as income tax expense or benefit, rather than within equity.  Cash flows related to excess tax benefits will be included in operating activities and will no longer be classified as a financing activity. We adopted this ASU on June 1, 2017 and recognized excess tax benefits of $1.2 million as a reduction to income tax expense during the three-months ended August 31, 2017.  We have also presented the excess tax benefits within operating activities in the condensed consolidated statement of cash flows for the three-months ended August 31, 2017.  As permitted, we adopted the statement of cash flow presentation guidance on a prospective basis with no adjustments to the previously reported amounts.

Note 2 — Discontinued Operations

During the first quarter of fiscal 2017, we completed the shut down of the metal machining operation of our Precision Systems Manufacturing business.  This business is reported as discontinued operations for all periods presented.  Liabilities of discontinued operations of $6.5 million and $6.9 million at August 31, 2017 and May 31, 2017, respectively, were classified as Accrued Liabilities on the Condensed Consolidated Balance Sheet.

Unless otherwise noted, amounts and disclosures throughout these Notes to Condensed Consolidated Financial Statements relate to our continuing operations.

Note 3 — Revenue Recognition

Sales and related cost of sales for product sales are recognized upon shipment of the product to the customer.  Our standard terms and conditions provide that title passes to the customer when the product is shipped to the customer.  Sales of certain defense products are recognized upon customer acceptance, which includes transfer of title.  Under the majority of our expeditionary airlift services contracts, we are paid and record as revenue a fixed daily amount per aircraft for each day an aircraft is available to perform airlift services.  In addition, we are paid and record as revenue an amount which is based on number of hours flown.  Sales from services and the related cost of services are generally recognized when customer-owned material is shipped back to the customer.  We have adopted this accounting policy because at the time the customer-owned material is shipped back to the customer, all services related to that material are complete as our service agreements generally do not require us to provide services at customer sites.  Furthermore, serviced units are typically shipped to the customer immediately upon completion of the related services.  Sales and related cost of sales for certain large airframe maintenance contracts and performance-based logistics programs are recognized by the percentage of completion method, based on the relationship of costs incurred to date to the estimated total costs.  We recognized favorable cumulative catch-up adjustments of $3.8 million during the three-month period ended August 31, 2016 related to changes in estimated profitability of these programs.

Lease revenues are recognized as earned.  Income from monthly or quarterly rental payments is recorded in the pertinent period according to the lease agreement.  However, for leases that provide variable rents, we recognize lease income on a straight-line basis.  In addition to a monthly lease rate, some engine leases require an additional rental amount based on the number of hours the engine is used in a particular month.  Lease income associated with these contingent rentals is recorded in the period in which actual usage is reported to us by the lessee, which is normally the month following the actual usage.

Certain supply chain management programs we provide to our customers contain multiple elements or deliverables, such as program and warehouse management, parts distribution, and maintenance and repair services.  We recognize revenue for each element or deliverable that can be identified as a separate unit of accounting at the time of delivery based upon the relative fair value of the products and services.

10

AAR CORP. and Subsidiaries

Notes to Condensed Consolidated Financial Statements

August 31, 2017

(Unaudited)

(Dollars in millions, except per share amounts)

In June 2016, the U.S. Air Force awarded the new contract for the KC-10 Extender Contractor Logistics Support Program (“KC-10 Program”) to a competitor.  Our principal services under the prior contract for the KC-10 Program were completed in January 2017; however, we have provided limited services since that date and will continue to do so for an unspecified period of time.  Sales for the KC-10 Program during the three-month periods ended August 31, 2017 and 2016 were $11.7 million and $38.6 million, respectively.  Gross profit for the KC-10 Program during the three-month periods ended August 31, 2017 and 2016 was $1.1 million and $2.8 million, respectively.

Included in accounts receivable as of August 31, 2017 and May 31, 2017, were $10.8 million and $14.5 million, respectively, of unbilled accounts receivable related to the KC-10 Program.  These unbilled accounts receivable related to costs we have incurred on parts that were requested and accepted by our customer to support the KC-10 Program.  These costs have not been billed by us because the customer has not yet issued the final paperwork necessary to allow for billing.

Note 4 — Accounting for Stock-Based Compensation

Restricted Stock

In the three-month period ended August 31, 2017, as part of our annual long-term stock incentive compensation, we granted 98,750 shares of performance-based restricted stock and 24,425 shares of time-based restricted stock to eligible employees.  The grant date fair value per share for these shares was $35.26 (the closing price on the grant date).  In June 2017, we also granted 55,000 shares of time-based restricted stock to members of the Board of Directors with a grant date fair value per share of $34.95.

Expense charged to operations for restricted stock during the three-month periods ended August 31, 2017 and 2016 was $1.4 million and $1.3 million, respectively.

Stock Options

In July 2017, as part of our annual long-term stock incentive compensation, we granted 453,450 stock options to eligible employees at an exercise price of $35.26 and weighted average fair value of $9.27.  The fair value of stock options was estimated on the date of grant using the Black-Scholes option pricing model with the following assumptions:

Risk-free interest rate	1.8	%
Expected volatility of common stock	31.7	%
Dividend yield	0.9	%
Expected option term in years	4.3

The total intrinsic value of stock options exercised during the three-month periods ended August 31, 2017 and 2016 was $5.0 million and $0.3 million, respectively.   Expense charged to operations for stock options during the three-month periods ended August 31, 2017 and 2016 was $1.1 million and $1.2 million, respectively.

Note 5 — Inventory

The summary of inventories is as follows:

	August 31,		May 31,
	2017		2017
Raw materials and parts	$	45.9	$	45.0
Work-in-process	29.3		25.8
Aircraft and engine parts, components and finished goods	379.8		393.1
Aircraft held for sale and related support parts	18.0		19.2
	$	473.0	$	483.1

11

AAR CORP. and Subsidiaries

Notes to Condensed Consolidated Financial Statements

August 31, 2017

(Unaudited)

(Dollars in millions, except per share amounts)

Note 6 — Supplemental Cash Flow Information

	Three Months Ended
	August 31,
	2017		2016
Interest paid	$	1.4	$	1.0
Income taxes paid	1.3		1.5
Income tax refunds received	—		1.0

Note 7 — Financing Arrangements

A summary of the carrying amount of our debt is as follows:

	August 31,			May 31,
	2017			2017
Revolving Credit Facility expiring November 1, 2021 with interest payable monthly	$	165.0		$	131.0
Industrial revenue bond (secured by property, plant and equipment) due August 1, 2018 with interest payable monthly	25.0			25.0
Capital lease obligations	2.9			3.3
Total debt	192.9			159.3
Current maturities of debt	(2.0		)	(2.0		)
Debt issuance costs, net	(1.9		)	(2.0		)
Long-term debt	$	189.0		$	155.3

At August 31, 2017, our variable rate and fixed rate debt had a fair value that approximates the carrying value of $192.9 million and are classified as Level 2 in the fair value hierarchy.

The industrial revenue bond that matures on August 1, 2018 has been classified as a long-term liability due to our intent and ability to refinance this bond on a long-term basis using our Revolving Credit Facility.

Our financing arrangements also requires us to comply with leverage and interest coverage ratios, maintain a minimum net working capital level, and comply with certain affirmative and negative covenants, including those relating to financial reporting and notification, payment of indebtedness, cash dividends, taxes and other obligations, compliance with applicable laws, and limitations on additional liens, indebtedness, acquisitions, investments and disposition of assets.  The Revolving Credit Facility also requires our significant domestic subsidiaries, and any subsidiaries that guarantee our other indebtedness, to provide a guarantee of payment under the Revolving Credit Facility.  At August 31, 2017, we were in compliance with the financial and other covenants in our financing agreements.

Note 8 — Earnings per Share

The computation of basic earnings per share is based on the weighted average number of common shares outstanding during each period.  The computation of diluted earnings per share is based on the weighted average number of common shares outstanding during the period plus, when their effect is dilutive, incremental shares consisting of shares subject to stock options and shares issuable upon vesting of restricted stock awards.

In accordance with ASC 260-10-45, Share-Based Payment Arrangements and Participating Securities and the Two-Class Method, our unvested restricted stock awards are deemed participating securities since these shares are entitled to participate in dividends declared on common shares.  During periods of net income, the calculation of earnings per share for common stock excludes income attributable to unvested restricted stock awards from the numerator and excludes the dilutive impact of those shares from the denominator.  During periods of net loss, no effect is given to the participating securities because they do not share in the losses of the Company.

12

AAR CORP. and Subsidiaries

Notes to Condensed Consolidated Financial Statements

August 31, 2017

(Unaudited)

(Dollars in millions, except per share amounts)

A reconciliation of the computations of basic and diluted earnings per share information for the three-month periods ended August 31, 2017 and 2016 is as follows:

	Three Months Ended August 31,
	2017			2016
Basic and Diluted EPS:
Income from continuing operations	$	10.6		$	9.9
Less income attributable to participating shares	(0.1		)	(0.1		)
Income from continuing operations attributable to common shareholders	10.5			9.8
Loss from discontinued operations attributable to common shareholders	—			(0.4		)
Net income attributable to common shareholders for earnings per share	$	10.5		$	9.4
Weighted average common shares outstanding—basic	34.0			33.9
Additional shares from assumed exercise of stock options	0.5			0.2
Weighted average common shares outstanding—diluted	34.5			34.1
Earnings per share — basic:
Earnings from continuing operations	$	0.31		$	0.29
Loss from discontinued operations	—			(0.01		)
Earnings per share — basic	$	0.31		$	0.28
Earnings per share — diluted:
Earnings from continuing operations	$	0.31		$	0.29
Loss from discontinued operations	—			(0.01		)
Earnings per share — diluted	$	0.31		$	0.28

At August 31, 2017, the average market price of our common shares was in excess of all of our outstanding options.  At August 31, 2016, stock options to purchase 2,041,000 shares of common stock were outstanding, but were not included in the computation of diluted earnings per share because the exercise price of each of these options was greater than the average market price of the common shares during the interim period then ended.

13

AAR CORP. and Subsidiaries

Notes to Condensed Consolidated Financial Statements

August 31, 2017

(Unaudited)

(Dollars in millions, except per share amounts)

Note 9 — Accumulated Other Comprehensive Loss

Changes in our accumulated other comprehensive loss (“AOCL”) by component for the three-month periods ended August 31, 2017 and 2016 were as follows:

	Currency Translation Adjustments			Pension Plans			Total
Balance at June 1, 2017	$	(1.7	)	$	(38.2	)	$	(39.9	)
Other comprehensive income before reclassifications	0.6			—			0.6
Amounts reclassified from AOCL	—			0.3			0.3
Total other comprehensive income	0.6			0.3			0.9
Balance at August 31, 2017	$	(1.1	)	$	(37.9	)	$	(39.0	)
Balance at June 1, 2016	$	(1.1	)	$	(43.3	)	$	(44.4	)
Other comprehensive loss before reclassifications	(1.5		)	—			(1.5		)
Amounts reclassified from AOCL	—			0.3			0.3
Total other comprehensive income (loss)	(1.5		)	0.3			(1.2		)
Balance at August 31, 2016	$	(2.6	)	$	(43.0	)	$	(45.6	)

Note 10 — Sale of Product Line

During the three-month period ended August 31, 2016, we sold certain assets related to our temperature-controlled container product line to Sonoco Protective Solutions, Inc. (“Sonoco”) for $5 million.  The sale price included $3 million paid at closing and $2 million in non-contingent, deferred consideration due over the following two years.  We recognized a gain of $2.6 million on the sale.  In conjunction with the sale, we also entered into a long-term manufacturing agreement to supply temperature-controlled containers to Sonoco over the following three years.

Note 11 — Business Segment Information

Consistent with how our chief operating decision making officer (Chief Executive Officer) evaluates performance and the way we are organized internally, we report our activities in two business segments:  Aviation Services comprised of supply chain and maintenance, repair and overhaul (“MRO”) activities and Expeditionary Services comprised of airlift and mobility activities.

The Aviation Services segment consists of aftermarket support and services businesses that provide spare parts and maintenance support for aircraft operated by our commercial and government/defense customers.  Sales in the Aviation Services segment are derived from the sale and lease of a wide variety of new, overhauled and repaired engine and airframe parts and components to the commercial aviation and government and defense markets.  We provide customized inventory supply chain management, performance based logistics programs, aircraft component repair management services, and aircraft modifications.  The segment also includes repair, maintenance and overhaul of aircraft, landing gear and components.  Cost of sales consists principally of the cost of product, direct labor, and overhead.

The Expeditionary Services segment consists of businesses that provide products and services supporting the movement of equipment and personnel by the U.S. Department of Defense (“DoD”), foreign governments and non-governmental organizations.  Sales in the Expeditionary Services segment are derived from the delivery of airlift services primarily to government and defense customers and the design and manufacture of pallets, shelters, and containers used to support the U.S. military’s requirements for a mobile and agile force.  We also provide engineering, design, and system integration services for specialized command and control systems, and design and manufacture advanced composite materials for commercial, business and military aircraft.  Cost of sales consists principally of aircraft maintenance costs, depreciation, the cost of material to manufacture products, direct labor and overhead.

14

AAR CORP. and Subsidiaries

Notes to Condensed Consolidated Financial Statements

August 31, 2017

(Unaudited)

(Dollars in millions, except per share amounts)

The accounting policies for the segments are the same as those described in Note 1 of Notes to Consolidated Financial Statements included in our annual report on Form 10-K for the year ended May 31, 2017.  Our chief operating decision making officer (Chief Executive Officer) evaluates performance based on the reportable segments and utilizes gross profit as a primary profitability measure.  Gross profit is calculated by subtracting cost of sales from sales.  The assets and certain expenses related to corporate activities are not allocated to the segments.  Our reportable segments are aligned principally around differences in products and services.

Selected financial information for each segment is as follows:

	Three Months Ended August 31,
	2017		2016
Net sales:
Aviation Services	$	371.3	$	334.6
Expeditionary Services	67.9		70.2
	$	439.2	$	404.8

	Three Months Ended August 31,
	2017		2016
Gross profit:
Aviation Services	$	57.8	$	53.4
Expeditionary Services	6.7		8.1
	$	64.5	$	61.5

The following table reconciles segment gross profit to income from continuing operations before provision for income taxes.

	Three Months Ended August 31,
	2017			2016
Segment gross profit	$	64.5		$	61.5
Selling, general and administrative	(48.0		)	(44.8		)
Interest expense	(1.7		)	(1.3		)
Income from continuing operations before provision for income taxes	$	14.8		$	15.4

15

AAR CORP. and Subsidiaries

Notes to Condensed Consolidated Financial Statements

August 31, 2017

(Unaudited)

(Dollars in millions, except per share amounts)

Note 12 — Legal Proceedings

We are not a party to any material pending legal proceeding (including any governmental or environmental proceeding) other than routine litigation incidental to our business except for the following:

DynCorp International LLC v. AAR Airlift Group, Inc.

On September 5, 2015, DynCorp International LLC (“DynCorp”) filed a complaint in the United States District Court for the Middle District of Florida, Orlando Division (the “District Court”), accusing AAR Airlift Group, Inc. (“AAR Airlift”), a wholly-owned subsidiary of AAR CORP., of misappropriation of DynCorp information, including trade secrets, and other related allegations.  DynCorp’s complaint, which sought damages in an unspecified amount and a preliminary injunction, alleged that AAR Airlift engaged in this conduct in connection with the submission of proposals in response to the solicitation issued by the U.S. Department of State (“DOS”) Bureau of International Narcotics and Law Enforcement Affairs, Office of Aviation (“INL/A”) in support of the Global Aviation Support Services program. The INL/A contract was subsequently awarded to AAR Airlift on September 1, 2016.

The District Court denied DynCorp’s preliminary injunction motion, and on October 19, 2015, DynCorp filed an amended complaint with the District Court.  On January 14, 2016, the District Court granted AAR Airlift’s motion to dismiss DynCorp’s amended complaint.  On February 2, 2016, DynCorp appealed the District Court’s order to the United States Court of Appeals for the Eleventh Circuit (the “Eleventh Circuit”).

On November 21, 2016, the Eleventh Circuit reversed in part the District Court’s dismissal of the amended complaint and remanded the case to the District Court for further proceedings.  The District Court set a discovery schedule that was to end on September 1, 2017 and a trial date of April 2, 2018.

On June 16, 2017, the District Court granted AAR Airlift’s motion to stay the legal proceeding against AAR Airlift.  The stay will remain in effect until the earlier of (a) November 1, 2017 or (b) the entry of a decision of the United Stated Court of Federal Claims (“COFC”), on DynCorp’s protest of the award of the INL/A contract to AAR Airlift. The District Court’s stay immediately halted all discovery and other activity in the DynCorp lawsuit. The COFC decision is expected on or before October 31, 2017.

AAR Airlift will continue to defend itself vigorously against DynCorp’s lawsuit, which it believes is entirely without merit.

Note 13 — Acquisition of Premier Aviation

On September 19, 2017, we acquired the outstanding shares of two MRO facilities in Quebec and Ontario, Canada owned by Premier Aviation for approximately $29.0 million.  The purchase price includes approximately $26.7 million paid at closing and deferred consideration of $2.3 million payable September 2018. This business will operate as part of our Aviation Services segment.

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Item 2 — Management’s Discussion and Analysis of Financial Condition and Results of Operations

(Dollars in millions)

General Overview

We report our activities in two business segments:  Aviation Services comprised of supply chain and MRO activities and Expeditionary Services comprised of airlift and mobility activities.

The Aviation Services segment consists of aftermarket support and services businesses that provide spare parts and maintenance support for aircraft operated by our commercial and government/defense customers.  Sales in the Aviation Services segment are derived from the sale and lease of a wide variety of new, overhauled and repaired engine and airframe parts and components to the commercial aviation and government and defense markets.  We provide customized inventory supply chain management, performance based logistics programs, aircraft component repair management services, and aircraft modifications.  The segment also includes repair, maintenance and overhaul of aircraft, landing gear and components.  Cost of sales consists principally of the cost of product, direct labor, and overhead.

The Expeditionary Services segment consists of businesses that provide products and services supporting the movement of equipment and personnel by the U.S. DoD, foreign governments and non-governmental organizations.  Sales in the Expeditionary Services segment are derived from the delivery of airlift services to mostly government and defense customers, and the design and manufacture of pallets, shelters, and containers used to support the U.S. military’s requirements for a mobile and agile force.  We also provide engineering, design, and system integration services for specialized command and control systems, and design and manufacture advanced composite materials for commercial, business and military aircraft.  Cost of sales consists principally of aircraft maintenance costs, depreciation, the cost of material to manufacture products, direct labor and overhead.

In fiscal 2017, we increased our Aviation Services segment revenues by securing additional flight hour component inventory management and repair programs from our commercial airline customers and investing in our capacity and business development resources.  During fiscal 2017, our investment in business development resulted in the award of new contracts from commercial operators along with investment of over $80 million in rotable assets to support these commercial aviation programs.

We started to recognize revenue and income in fiscal 2017 on most of these contract awards and are continuing the ramp-up in fiscal 2018.  We believe there continues to be a favorable trend by both commercial and government and defense customers for comprehensive supply chain and maintenance programs, as these customers continue to seek ways to reduce their operating cost structure.

On September 1, 2016, the Department of State awarded AAR Airlift Group, Inc. the contract for INL/A Global Aviation Support Services.  This contract will leverage our capabilities in aviation services, including flight operations, supply chain logistics, and other services.  The potential duration of this contract is 11 years and the potential revenue stream, including all related task orders, is $10 billion.  The incumbent contractor filed a protest that was denied by the United States Government Accountability Office in December 2016. The incumbent contractor subsequently filed a separate protest with the United States Court of Federal Claims (“COFC”).  The COFC stayed the contract award to AAR Airlift pending its decision on the protest.  The COFC’s decision on the protest is expected on or before October 31, 2017.

In our Expeditionary Services segment, the government markets we serve historically in support of troop movements and related activities continue to be weak with revenue and earnings significantly lower than peak levels.  In May 2017, the DoD awarded an indefinite-delivery/indefinite-quantity contract to AAR Airlift and other companies related to the re-compete for rotary-wing airlift services in Afghanistan.  However, AAR Airlift did not receive any task orders for this contract and our protest with the DoD contesting the task orders awarded to our competitors was not successful.  We expect to complete our services under our existing Afghanistan contract positions in the second quarter of fiscal 2018.

17

We plan to transition our expeditionary airlift services to a business model focused on pursuing more government programs which are based on a government owned, contractor operated (“GOCO”) model.  We will also focus on developing a more robust asset management platform for rotary-wing aircraft which will complement our existing position in support of fixed-wing aircraft.

On September 19, 2017, we acquired the outstanding shares of two MRO facilities in Quebec and Ontario, Canada owned by Premier Aviation for approximately $29.0 million.  The purchase price includes approximately $26.7 million paid at closing and deferred consideration of $2.3 million payable September 2018.  These new facilities will support a new long-term contract with Air Canada for airframe maintenance on their fleet of A319, A320, and A321 aircraft.

We remain in a strong financial position to further execute on our strategy as a best in class aviation and expeditionary services company.  Our cash on hand plus unused capacity on our Revolving Credit Facility was $335.5 million at August 31, 2017.  We expect to invest opportunistically in expanding our comprehensive suite of services to the global commercial aviation and government and defense markets.  We continue to have the flexibility in our balance sheet allowing us to invest in our growth.  As we generate positive cash flow, we will continue our strategy of returning capital to our shareholders without hampering our future operating flexibility.

The accounting policies for the segments are the same as those described in Note 1 of Notes to Consolidated Financial Statements included in our annual report on Form 10-K for the year ended May 31, 2017.  Our chief operating decision making officer (Chief Executive Officer) evaluates performance based on the reportable segments and utilizes gross profit as a primary profitability measure.  Gross profit is calculated by subtracting cost of sales from sales.  The assets and certain expenses related to corporate activities are not allocated to the segments.  Our reportable segments are aligned principally around differences in products and services.

Results of Operations

Three Month Period Ended August 31, 2017

Sales and gross profit for our two business segments for the quarters ended August 31, 2017 and 2016 were as follows:

	Three Months Ended August 31,
	2017		2016		% Change
Sales:
Aviation Services
Commercial	$	296.8	$	235.5	26.0	%
Government and defense	74.5		99.1		(24.8	)%
	$	371.3	$	334.6	11.0	%
Expeditionary Services
Commercial	$	12.5	$	13.3	(6.0	)%
Government and defense	55.4		56.9		(2.6	)%
	$	67.9	$	70.2	(3.3	)%

	Three Months Ended August 31,
	2017		2016		% Change
Gross Profit:
Aviation Services
Commercial	$	44.2	$	37.6	17.6	%
Government and defense	13.6		15.8		(13.9	)%
	$	57.8	$	53.4	8.2	%
Expeditionary Services
Commercial	$	2.8	$	1.3	115.4	%
Government and defense	3.9		6.8		(42.6	)%
	$	6.7	$	8.1	(17.3	)%

18

Aviation Services Segment

Sales in the Aviation Services segment increased $36.7 million or 11.0% over the prior year period due to a $61.3 million or 26.0% increase in sales to commercial customers.  The increase in sales to commercial customers was attributable to higher volumes in aviation supply chain activities driven primarily by new contract awards.

During the first quarter of fiscal 2018, sales in this segment to government and defense customers decreased $24.6 million or 24.8% from the prior year period.  The decrease was primarily due to the wind-down of our KC-10 Program.  Our principal services under the KC-10 Program were completed in January 2017 with the wind-down expected to be complete in fiscal 2018.  Sales for the KC-10 Program during the three-month periods ended August 31, 2017 and 2016 were $11.7 million and $38.6 million, respectively.

Cost of sales in Aviation Services increased $32.3 million or 11.5% over the prior year period, which was largely in line with the sales increase discussed above.  Gross profit in the Aviation Services segment increased $4.4 million or 8.2% over the prior year period.  Gross profit on sales to commercial customers increased $6.6 million or 17.6% over the prior year primarily driven by the higher volumes in aviation supply chain activities.  Gross profit margin on sales to commercial customers decreased from 16.0% to 14.9% primarily as a result of the mix of products and services sold.

Gross profit on sales to government and defense customers decreased $2.2 million or 13.9% from the prior year period primarily due to the wind-down of our KC-10 Program. The gross profit margin on sales to government and defense customers increased from 15.9% to 18.3% reflecting the wind-down of the lower profitability KC-10 Program.

Expeditionary Services Segment

Sales in the Expeditionary Services segment decreased $2.3 million or 3.3% from the prior year period primarily due to fewer contract positions for our expeditionary airlift services.

Gross profit in the Expeditionary Services segment decreased $1.4 million or 17.3% from the prior period.  During the first quarter of fiscal 2017, we sold certain assets related to our temperature-controlled container product line to Sonoco Protective Solutions, Inc. which resulted in a gain of $2.6 million.

Selling, General and Administrative Expenses

Selling, general and administrative expenses increased $3.2 million in fiscal 2018.  As a percent of sales, selling, general and administrative expenses decreased to 10.9% from 11.1% in the prior year period.

Interest Expense

Interest expense increased $0.4 million in fiscal 2017 from the prior year period primarily as a result of higher borrowings on our Revolving Credit Facility.

Income Taxes

Our effective income tax rate for continuing operations was 28.4% for the three-month period ended August 31, 2017 compared to 35.7% in the prior year period.  The decrease in the effective income tax rate was primarily due to the adoption of Accounting Standards Update (“ASU”) 2016-09 effective June 1, 2017.  This ASU requires excess tax benefits or deficiencies for restricted shares and stock options be recognized as income tax expense or benefit in the period shares vest or options are exercised rather than within equity.  We recognized $1.2 million of excess tax benefits as a reduction to income tax expense during the three-months ended August 31, 2017.

19

Liquidity, Capital Resources and Financial Position

Our operating activities are funded and commitments met through the generation of cash from operations in addition to borrowings from our Revolving Credit Facility.  Periodically, we may raise capital through common stock and debt financings in the public or private markets.  In addition to these cash sources, our current capital resources include an unsecured credit facility.  We continually evaluate various financing arrangements, including the issuance of common stock or debt, which would allow us to improve our liquidity position and finance future growth on commercially reasonable terms. Our continuing ability to borrow from our lenders and issue debt and equity securities to the public and private markets in the future may be negatively affected by a number of factors, including the overall health of the credit markets, general economic conditions, airline industry conditions, geo-political events, and our operating performance.  Our ability to generate cash from operations is influenced primarily by our operating performance and changes in working capital.

At August 31, 2017, our liquidity and capital resources included cash of $15.1 million and working capital of $592.6 million.

We maintain a Revolving Credit Facility with various financial institutions, as lenders, and Bank of America, N.A., as administrative agent for the lenders which provides the Company an aggregate revolving credit commitment amount of $500 million and matures November 1, 2021.  The Company, under certain circumstances, has the ability to request an increase to the revolving credit commitment by an aggregate amount of up to $250 million, not to exceed $750 million in total.

Borrowings under the Revolving Credit Facility bear interest at the offered Eurodollar Rate plus 100 to 200 basis points based on certain financial measurements if a Eurodollar Rate loan, or at the offered fluctuating Base Rate plus 0 to 100 basis points based on certain financial measurements if a Base Rate loan.

Borrowings outstanding under the Revolving Credit Facility at August 31, 2017 were $165.0 million and there were approximately $14.6 million of outstanding letters of credit, which reduced the availability of this facility to $320.4 million. There are no other terms or covenants limiting the availability of this facility. We also had $9.8 million available under foreign lines of credit at August 31, 2017.

We intend to retire current maturities due in the next twelve months through borrowings under our Revolving Credit Facility.

At May 31, 2017, we complied with all financial and other covenants under each of our financing arrangements.

Cash Flows from Operating Activities

Net cash used in operating activities—continuing operations was $20.1 million in the three-month period ended August 31, 2017 compared to cash used of $0.5 million in the prior year period.  The decrease from the prior period of $19.6 million was primarily attributable to a decrease in accrued liabilities and an increase in accounts receivable primarily due to customer invoice timing.

Cash Flows from Investing Activities

Net cash used in investing activities was $6.9 million during the three-month period ended August 31, 2017 compared to $6.6 million in the prior year period.  The decrease in property, plant, and equipment expenditures in fiscal 2018 was largely offset by increased proceeds received in fiscal 2017 from asset disposals.

Cash Flows from Financing Activities

Net cash provided from financing activities was $32.3 million during the three-month period ended August 31, 2017 compared to cash used of $15.2 million in the prior year period.  The additional cash provided of $47.5 million was primarily attributable to increased short-term net borrowings of $27.0 million in the three month period ended August 31, 2017 and higher treasury stock purchases in fiscal 2017 of $9.6 million compared to the current year period.

20

Critical Accounting Policies and Significant Estimates

We make a number of significant estimates, assumptions and judgments in the preparation of our financial statements.  See Management’s Discussion and Analysis of Financial Condition and Results of Operations in our 2017 Form 10-K for a discussion of our critical accounting policies.  There have been no significant changes to the application of our critical accounting policies during the first quarter of fiscal 2018.

Forward-Looking Statements

This report contains certain forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995.  These forward-looking statements are based on beliefs of our management, as well as assumptions and estimates based on information available to us as of the dates such assumptions and estimates are made, and are subject to certain risks and uncertainties that could cause actual results to differ materially from historical results or those anticipated, depending on a variety of factors, including those factors set forth under Part I, Item 1A in our Annual Report on Form 10-K for the year ended May 31, 2017.  Should one or more of those risks or uncertainties materialize adversely, or should underlying assumptions or estimates prove incorrect, actual results may vary materially from those described.  Those events and uncertainties are difficult or impossible to predict accurately and many are beyond our control.  We assume no obligation to update any forward-looking statements to reflect events or circumstances after the date of such statements or to reflect the occurrence of anticipated or unanticipated events.

Item 3 — Quantitative and Qualitative Disclosures About Market Risk

Our exposure to market risk includes fluctuating interest rates under our credit agreements, changes in foreign exchange rates, and credit losses on accounts receivable.  See Note 1 of Notes to Consolidated Financial Statements in our Annual Report on Form 10-K for the year ended May 31, 2017 for a discussion of accounts receivable exposure.

Foreign Currency Risk.  Revenues and expenses of our foreign operations are translated at average exchange rates during the period, and balance sheet accounts are translated at period-end exchange rates.  Balance sheet translation adjustments are excluded from the results of operations and are recorded in stockholders’ equity as a component of accumulated other comprehensive loss.  A hypothetical 10 percent devaluation of the U.S. dollar against foreign currencies would not have had a material impact on our financial position or continuing operations for the quarter ended August 31, 2017.

Interest Rate Risk.  Refer to the section Quantitative and Qualitative Disclosures about Market Risk in our Annual Report on Form 10-K for the year ended May 31, 2017.  There were no significant changes during the quarter ended August 31, 2017.

Item 4 — Controls and Procedures

As required by Rules 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934, we conducted an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures as of August 31, 2017.  This evaluation was carried out under the supervision and with participation of our Chief Executive Officer and Vice Chairman.  There are inherent limitations to the effectiveness of any system of disclosure controls and procedures.  Therefore, effective disclosure controls and procedures can only provide reasonable assurance of achieving their control objectives.  Based upon our evaluation, our Chief Executive Officer and our Vice Chairman (who was our Chief Financial Officer until September 1, 2017) concluded that our disclosure controls and procedures are effective as of August 31, 2017, ensuring that information required to be disclosed in the reports that are filed under the Securities Exchange Act of 1934 is recorded, processed, summarized, and reported in a timely manner.

There were no changes in our internal control over financial reporting during the first quarter ended August 31, 2017 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

21

PART II — OTHER INFORMATION

Item 1A — Risk Factors

There have been no material changes to our risk factors as set forth in our Annual Report on Form 10-K for the year ended May 31, 2017.

Item 2 — Unregistered Sales of Equity Securities and Use of Proceeds

(c)The following table provides information about purchases we made during the quarter ended August 31, 2017 of equity securities that are registered by us pursuant to Section 12 of the Exchange Act:

Period	Total Number of Shares Purchased	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs (1)	Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs (1)
6/1/2017 — 6/30/2017	—	—		—
7/1/2017 — 7/31/2017	32,096	36.65		32,096
8/1/2017 — 8/31/2017	110,548	36.30		110,548
Total	142,644	$	36.38	142,644	$	244,810,775

(1) On July 10, 2017, our Board of Directors authorized a new stock repurchase program providing for the repurchase of up to $250 million of our common stock, with no expiration date.

Item 6 — Exhibits

The exhibits to this report are listed on the Exhibit Index included elsewhere herein.

22

EXHIBIT INDEX

Exhibit No.	Description	Exhibits
10.	Material Contracts	10.1*	Form of AAR CORP. Fiscal 2018 Short-Term Incentive Plan (filed herewith).
		10.2*	Form of AAR CORP. Fiscal 2018 Non-Qualified Stock Option Agreement (filed herewith).
		10.3*	Form of AAR CORP. Fiscal 2018 Restricted Stock Agreement (filed herewith).
		10.4*	Form of AAR CORP. Fiscal 2018 Performance Restricted Stock Agreement (filed herewith).
31.	Rule 13a-14(a)/15(d)-14(a) Certifications	31.1	Section 302 Certification dated September 20, 2017 of David P. Storch, Chairman and Chief Executive Officer of Registrant (filed herewith).
		31.2	Section 302 Certification dated September 20, 2017 of Timothy J. Romenesko, Vice Chairman of Registrant (filed herewith).
32.	Section 1350 Certifications	32.1	Section 906 Certification dated September 20, 2017 of David P. Storch, Chairman and Chief Executive Officer of Registrant (filed herewith).
		32.2	Section 906 Certification dated September 20, 2017 of Timothy J. Romenesko, Vice Chairman of Registrant (filed herewith).
101.	Interactive Data File	101	The following materials from the Registrant’s Quarterly Report on Form 10-Q for the quarter ended August 31, 2017, formatted in XBRL (eXtensible Business Reporting Language): (i) Condensed Consolidated Balance Sheets at August 31, 2017 and May 31, 2017, (ii) Condensed Consolidated Statements of Income for the three months ended August 31, 2017 and 2016, (iii) Condensed Consolidated Statements of Comprehensive Income for the three months ended August 31, 2017 and 2016, (iv)  Condensed Consolidated Statements of Cash Flows for the three months ended August 31, 2017 and 2016, (v) Condensed Consolidated Statement of Changes in Equity for the three months ended August 31, 2017 and (vi) Notes to Condensed Consolidated Financial Statements.**

*Management contracts and compensatory arrangements.

**Pursuant to Rule 406T of Regulation S-T, the Interactive Data Files on Exhibit 101 hereto are deemed not filed or part of a registration statement or prospectus for purposes of Sections 11 or 12 of the Securities Act of 1933, as amended, are deemed not filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and otherwise are not subject to liability under those sections.

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

		AAR CORP.
		(Registrant)
Date:	September 20, 2017	/s/ TIMOTHY J. ROMENESKO
		Timothy J. Romenesko
		Vice Chairman
		(Principal Financial Officer and officer duly
		authorized to sign on behalf of registrant)
		/s/ ERIC S. PACHAPA
		Eric S. Pachapa
		Vice President, Controller and Chief Accounting Officer
		(Principal Accounting Officer)

24

EX-10.1

Exhibit 10.1

AAR CORP. Fiscal 2018 Short-Term Incentive Plan

1.Purpose.

The purpose of the AAR CORP. 2018 Short-Term Incentive Plan (“STIP”) is to provide an incentive for selected senior executives of AAR CORP. (the “Company”) and its subsidiaries to achieve the Company’s short-term performance goals by providing them with an annual cash incentive payment based on the financial and operating success of the Company.

2.Definitions.

(a)“Board” means the Board of Directors of the Company.

(b)“Bonus” means the annual cash incentive paid to a Participant under this STIP for a fiscal year of the Company.

(c)“Cause” means the Participant’s unsatisfactory performance or conduct detrimental to the Company and its subsidiaries, as solely determined by the Company.

(d)“Code” means the Internal Revenue Code of 1986, as amended.

(e)“Committee” means the Compensation Committee of the Board, or if the Committee is not comprised of “outside directors” as defined in Section 162(m) of the Code, then by a subset of the Committee comprised of at least two “outside directors” (the “Committee”).

(f)“Company” means AAR CORP.

(g)“Disability” means the inability of the Participant to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment which can be expected to result in death or which has lasted or can be expected to last for a continuous period of not less than 12 months.

(h)“Earnings Per Share” means diluted earnings per share (including earnings from both continued and discontinued operations) as disclosed by the Company in its periodic reports filed with the Securities and Exchange Commission, excluding special charges or unusual or infrequent items incurred during the performance period, and as adjusted for changes in generally accepted accounting principles, in each case as approved by the Committee.

(i)“Participant” means any active executive of the Company or subsidiary who has been selected by the Committee as eligible to earn a Bonus under the STIP.

(j)“Retirement” means the Participant’s voluntary termination of his employment, or his termination of employment by the Company or a subsidiary without Cause, when he has (i) attained age 65 or (ii) attained age 55 and his age plus the number of his consecutive years of service with the Company and subsidiaries is at least 75.

(k)“Salary” means a Participant’s base annual salary earned during for the fiscal year ending May 31, 2018 while a Participant.

(l)“STIP” means this AAR CORP. 2018 Short-Term Incentive Plan.

(m)“Working Capital Turns” means  net sales divided by average working capital, where working capital is defined as net accounts receivable plus net inventories minus accounts payable, excluding special charges or unusual or infrequent items incurred during the performance period, and as adjusted for changes in generally accepted accounting principles, in each case as approved by the Committee.

3.Administration.

The STIP shall be administered by the Committee.  The Committee has full authority to select the senior executives eligible to participate in the STIP and determine when the senior executive’s participation in the STIP will begin and end.  Subject to the express provisions of the STIP, the Committee shall be authorized to interpret the STIP and to establish, amend and rescind any rules and regulations relating to the STIP and to make all other determinations deemed necessary or advisable for the proper administration of the STIP.  The determinations of the Committee in the proper administration of the STIP shall be conclusive and binding.

4.Eligibility and Participation.

Participation in the STIP is limited to those senior executives of the Company or a subsidiary who the Committee designates as Participants.  When the Committee selects an executive to become a Participant under the STIP, it shall designate the date as of which the executive’s participation shall begin.

5.Annual Bonus Awards.

(a)Determination of Participants, Performance Goals and Target Bonus Amounts. On or before August 29, 2017, the Committee shall (i) determine the Participants for such fiscal year, (ii) establish threshold, target and maximum Earnings Per Share and Working Capital Turns performance goals for such fiscal year, and (iii) approve the target Bonus payment for each Participant expressed as a percentage of the Participant’s Salary.

(b)Bonus Payment.  As soon as reasonably practicable after the end of the fiscal year ending May 31, 2018, the Committee shall determine the extent to which each of the Earnings Per Share and Working Capital Turns targets were attained for such fiscal year.  The Bonus payable to each Participant will be equal to the sum of (i) 80% of the Participant’s target Bonus multiplied by the applicable Earnings Per Share Multiplier Percentage and (ii) 20% of the Participant’s target Bonus multiplied by the Working Capital Turns Multiplier Percentage (except for such lower amounts as otherwise determined by the Committee in its discretion):

Earnings Per Share (80%)			Working Capital Turns (20%)
Performance Achievement Level	Multiplier Percentage		Performance Achievement Level	Multiplier Percentage
Threshold	50	%	Threshold	50	%
Target	100	%	Target	100	%
Maximum	250	%	Maximum	250	%

2

For achievement of Earnings Per Share and Working Capital Turns targets between established performance achievement levels, the Multiplier Percentage will be interpolated on a straight-line basis.

6.STIP Limitations.

Notwithstanding Section 5, (a) the Committee retains full discretion to determine whether any Bonus will be payable for the fiscal year ending May 31, 2018, regardless of performance results and (b) no Bonus shall be paid under the STIP for a fiscal year to a Participant whose employment with the Company and all subsidiaries terminates during such fiscal year unless the termination is due to death, Disability or Retirement, or as otherwise approved by the Committee.  If the Participant terminates during the fiscal year due to death, Disability or Retirement, the Participant shall be entitled to a pro rata portion of the Bonus the Participant would have earned under the STIP had the Participant remained employed through the end of the fiscal year.  Such Bonus will be paid at the same time Bonuses are paid to active Participants.

Notwithstanding Section 5, no Bonus will be payable for the fiscal year ending May 31, 2018 if net income (as determined in accordance with generally accepted accounting principles) for such fiscal year is not positive.

7.Payment of Bonuses.

A Participant’s Bonus for the fiscal year ending May 31, 2018 shall be paid in cash to the Participant, or to the Participant’s beneficiary (or beneficiaries) in the event of the Participant’s death, within three months after the end of such fiscal year, unless the Participant has previously elected to have all or a portion of the Bonus deferred in accordance with the AAR CORP. Supplemental Key Executive Retirement Plan.  The Company shall deduct all taxes required by law to be withheld from all Bonus payments.

8.No Assignment.

Except in the event of a Participant’s death, the rights and interests of a Participant under the STIP shall not be assigned, encumbered or transferred.

9.Termination of Participation.

The Committee reserves the right to cancel a Participant’s participation in the STIP at any time.

10.Employment Rights.

Nothing contained in the STIP shall be construed as conferring a right upon any employee to continue in the employment of the Company or any subsidiary.

11.Amendment/Termination.

The Board may either amend or terminate the STIP at any time, without the consent of the Participants and without the approval of the stockholders of the Company; provided, that such modification or elimination shall not affect the obligation of the Company to pay any Bonus after it has been determined by the Committee under the STIP.

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EX-10.2

Exhibit 10.2

Fiscal 2018 Form

AAR CORP.

Non-Qualified Stock Option Agreement

(“Agreement”)

Subject to the provisions set forth herein and the terms and conditions of the AAR CORP. 2013 Stock Plan and the Long-Term Incentive Plan for Fiscal 2018 (together, the “Plan”), the terms of which are hereby incorporated by reference, and in consideration of the agreements of the Grantee herein provided, AAR CORP., a Delaware corporation (“Company”), hereby grants to the Grantee an option, effective July 10, 2017 (“Date of Grant”) entitling the Grantee to purchase from the Company common stock of the Company, par value $1.00 per share (“Common Stock”), at an exercise price of $35.26, and in the number of shares set forth in the Company’s notification of option grant letter to the Grantee and incorporated herein by reference (“Option”), subject to the terms and conditions set forth herein:

1.Acceptance by Grantee.  The exercise of the Option is conditioned upon the acceptance by the Grantee of the terms and conditions of the Option as set forth in this Agreement.  The Grantee must confirm acceptance of the Option and this Agreement on Morgan Stanley’s web site (www.stockplanconnect.com).  If the Grantee does not accept the Option and this Agreement within 30 days from the date of the notification of the Option, the Option grant referenced herein shall expire unless the acceptance date is extended in writing signed by the Company.

2.Vesting Provisions.  Subject to the provisions of paragraph 3 below, the option shall vest 331/3% on each of July 31, 2018, July 31, 2019 and July 31, 2020, except as follows:

(a)In General.  If the Grantee’s employment with the Company and all Subsidiaries of the Company is terminated for any reason other than for Retirement, death, Disability or Cause, the unvested portion of the Grantee’s Option shall expire on the date of such termination of employment and the vested portion of the Grantee’s Option shall continue to be exercisable until the earlier of (i) three months after such termination of employment or (ii) the date the Option expires in accordance with its terms.

(b)Retirement.  If the Grantee’s employment with the Company and all Subsidiaries of the Company is terminated by reason of Retirement, the Option shall continue to vest and become exercisable in accordance with its terms and may be exercised by the retired Grantee in the same manner and to the same extent as if the Grantee had continued employment during that period; provided, however, that (i) if the Grantee dies within three months following Retirement but before the Option expires, paragraph 2(c)(ii) shall apply and (ii) if the Grantee dies later than three months following Retirement but before the Option expires, the then unvested portion of the Option shall expire on the date of such death and the vested portion of the Option shall continue to be exercisable by the Grantee’s Successor until the date that the Option expires by its terms.  For this purpose, “Retirement” means the Grantee’s voluntary termination of employment, or his termination of employment by the Company or a Subsidiary without Cause, when he has (i) attained age 65 or (ii) attained age 55 and his age plus the number of his consecutive years of service with the Company and Subsidiaries is at least 75.

(c)Death.  If (i) the Grantee’s employment with the Company and all Subsidiaries of the Company is terminated by reason of death or (ii) the Grantee dies within three months after the termination of employment with the Company and all Subsidiaries for reasons other than Cause, the unvested portion of the Option shall expire on the date of such death and the vested portion of the Option shall continue to be exercisable until the earlier of (i) one year after the Grantee’s death or (ii) the date the Option expires in accordance with its terms.

(d)Disability.  If the Grantee’s employment with the Company and all Subsidiaries is terminated by reason of Disability, the Option shall continue to vest and become exercisable until the earlier of (i) one year after such termination of employment or (ii) the date the Option expires in accordance with its terms, and during such period the Option may be exercised by the disabled Grantee; provided, however, that if the Grantee dies after termination of employment but prior to the date the Option expires, the unvested portion of the Option shall expire on the date of such death and the vested portion of the Option shall continue to be exercisable as described herein.  For this purpose, “Disability” means the inability of the Grantee to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment which can be expected to result in death or which has lasted or can be expected to last for a continuous period of not less than 12 months.

(e)Cause.  If the Grantee’s employment is terminated by the Company or any Subsidiary of the Company for Cause, the Option shall expire immediately upon such termination of employment and no portion of the Option shall be exercisable thereafter.  For this purpose, “Cause” means (i) the Grantee’s dishonesty, fraud or breach of trust, gross negligence or substantial misconduct in the performance of, or substantial nonperformance of, his assigned duties or willful violation of Company policy, (ii) any act or omission by the Grantee that is a substantial cause for a regulatory body with jurisdiction over the Company to request or recommend the suspension or removal of the participant or to impose sanctions upon the Company or the Grantee, or (iii) a material breach by the Grantee of any applicable employment agreement between him and the Company.  The Company shall have the sole discretion to determine whether a Grantee’s termination of employment is for Cause.

(f)Restrictive Covenant.  If at any time prior to the expiration of the Option, the Grantee, without the Company’s express written consent, directly or indirectly, alone or as a member of a partnership, group or joint stock venture or as an employee, officer, director, or greater than 1% stockholder of any corporation, or in any capacity engages in any activity which is competitive with any of the businesses conducted by the Company or its affiliated companies any time during the Grantee’s term of employment, (i) the Option shall immediately expire and become unexercisable, (ii) the Grantee shall forfeit and return all shares of Common Stock acquired and then held by the Grantee pursuant to the exercise of any portion of this Option, and (iii) the Grantee shall immediately pay to the Company an amount equal to the appreciation realized on any shares of Common Stock acquired and sold or otherwise disposed of in connection with the exercise of this Option, as of the date sold.

3.Change in Control.  In the event a Change in Control occurs, and within two years following such Change in Control, either the Grantee’s employment is terminated by the Company or a Subsidiary of the Company without Cause, or the Grantee terminates his employment with the Company and all Subsidiaries for Good Reason, then notwithstanding any

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conditions or restrictions contained in this Agreement, the outstanding Option shall become immediately exercisable on the date of such termination of employment with respect to all shares of Common Stock covered thereby, whether vested or not and shall remain exercisable until the Option expires.  For this purpose, (a) “Cause” shall have the meaning set forth in Section 2(e) above and (b) “Good Reason” means (i) a material reduction in the nature or scope of the Grantee’s duties, responsibilities, authority, power or functions from those enjoyed by the Grantee immediately prior to the Change in Control, or a material reduction in the Grantee’s compensation (including benefits), occurring at any time during the two-year period immediately after the Change in Control, or (ii) a relocation of the Grantee’s primary place of employment of at least 100 miles.

4.Change in Outstanding Shares.  Any increase or decrease in the number of outstanding shares of Common Stock of the Company occurring through stock splits, stock dividends, stock consolidations, spin-offs, other distributions of assets to stockholders or assumption or conversion of outstanding Options due to an acquisition after the Date of Grant of the Option shall be reflected proportionately in the number of shares of Common Stock subject to the Option, and a proportionate reduction or increase, as applicable, shall be made in the Option Price Per Share hereunder. Any fractional shares resulting from such adjustment shall be eliminated. If changes in capitalization other than those considered above shall occur, the Board shall make such adjustment in the number or class of shares purchasable upon exercise of the Option and in the Option Price Per Share as the Board in its discretion may consider appropriate, and all such adjustments shall be conclusive upon all persons.

5.Exercise of Option.  Notice of an election to exercise any portion of the Option, specifying the portion thereof being exercised and the exercise date, shall be given by the Grantee, or the Grantee’s personal representative in the event of the Grantee’s death or Disability necessitating a Court approved personal representative, by notifying Morgan Stanley pursuant to the on-line exercise procedures set forth on the AAR 2013 Stock Benefit Plan online exercise web site (www.stockplanconnect.com).

6.Payment of Exercise Price and Withholding.  Upon any exercise of the Option, an amount necessary to pay the exercise price and to satisfy applicable tax withholding requirements, including those arising under federal, state and local income tax laws, will be due and payable at the time of exercise prior to the issuance of any shares of Common Stock pursuant to such exercise.  The Grantee may pay the exercise price and satisfy the minimum withholding requirements by one or more of the following methods:  (a) in cash, (b) in cash received from a broker-dealer to whom the Grantee has submitted an exercise notice and irrevocable instructions to deliver the purchase price and amount of tax withholding to the Company from the proceeds of the sale of shares of Common Stock subject to the Option, (c) by delivery to the Company of other Common Stock owned by the Grantee that is acceptable to the Company, valued at its fair market value on the date of exercise, (d) by certifying to ownership by attestation of such previously owned Common Stock, or (e) by having shares withheld from the Common Stock otherwise distributable to the Grantee upon exercise of the Option. A Grantee’s election pursuant to the preceding sentence must be made at the time of exercise of such Option and must be irrevocable.  Payment shall be made pursuant to the online procedures set forth on the AAR 2013 Stock Benefit Plan online website through Morgan Stanley (www.stockplanconnect.com).

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7.Option Not Transferable.  The Option may be exercised only by the Grantee during the Grantee’s lifetime and may not be transferred other than by will, the applicable laws of descent or distribution, or an assignment subject to and meeting the requirements of the Plan and made in accordance with Company procedures in effect from time to time for approval by the Company and consummation of the assignment (copies of procedures and forms are available from the Corporate Secretary upon request). The Option shall not otherwise be transferred, assigned, pledged or hypothecated for any purpose whatsoever and is not subject, in whole or in part, to execution, attachment, or similar process. Any attempted assignment, transfer, pledge or hypothecation or other disposition of the Option, other than in accordance with the terms set forth herein, shall be void and of no effect.

8.No Rights as a Stockholder.  Neither the Grantee nor any other person entitled to exercise the Option under the terms hereof shall be, or have any of the rights or privileges of, a stockholder of the Company in respect of any of the shares of Common Stock issuable on exercise of the Option, unless and until such shares shall have been actually issued.

9.Recoupment.  Notwithstanding any other provision of this Agreement, to the extent required by applicable law, including the Dodd-Frank Wall Street Reform and Consumer Protection Act, or pursuant to the Company’s policy as may be in effect, the Company shall have the right to seek recoupment of all or any portion of an Option (including by forfeiture of the then outstanding and unexercised portion of the Option (whether vested or unvested) or by the Grantee’s remittance to the Company of Common Stock acquired on exercise of the Option or of a cash payment for the value thereof).  The value with respect to which such recoupment is sought shall be determined by the Company.  The Company shall be entitled, as permitted by applicable law, to deduct the amount of such payment from any amounts the Company may owe to the Grantee.

10.Miscellaneous.

(a)In the event the Option shall be exercised in whole or in part, the number of Shares of Common Stock subject to the Option shall be reduced accordingly.

(b)When the Option expires, such expiration shall occur at the Company’s close of business on the date of expiration.

(c)The Option shall be exercised only in accordance with such Company administrative procedures as may be in effect from time to time.

(d)The Option and this Agreement shall be construed, administered and governed in all respects under and by the laws of the State of Illinois.

(e)Capitalized terms used herein and not defined herein will have the meanings set forth in the Plan or the notification of grant letter.

(f)Nothing in the Option shall confer on the Grantee any right to be or to continue in the employ of the Company or any of its Subsidiaries or shall interfere in any way with the right of the Company or any of its Subsidiaries to terminate the employment of the Grantee at any time for any reason or no reason.

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(g)This Agreement has been examined by the parties hereto, and accordingly the rule of construction that ambiguities be construed against a party which causes a document to be drafted shall have no application in the construction or interpretation hereof. If any part of this Agreement is held invalid for any reason, the remainder hereof shall nevertheless remain in full force and effect.

(h)This Agreement constitutes the entire agreement between the parties concerning the subject matter hereof and any prior understanding or representation of any kind antedating this Agreement concerning such subject matter shall not be binding upon either party except to the extent incorporated herein; provided, however, that this Agreement, including paragraph 2, shall be subject to the provisions of any written employment or severance agreement that has been or may be executed by the Grantee and the Company, and the provisions in such employment or severance agreement concerning the Option shall supercede any inconsistent or contrary provision of this Agreement.  No consent, waiver, modification or amendment hereof, or additional obligation assumed by either party in connection herewith, shall be binding unless evidenced by a writing signed by both parties and referring specifically hereto. No consent, waiver, modification or amendment with respect hereto shall be construed as applicable to any past or future events other than the one in respect of which it was specifically made.

(i)This Agreement shall be construed consistent with the provisions of the Plan and in the event of any conflict between the terms of this Agreement and the terms of the Plan, the terms of the Plan shall control and any terms of this Agreement which conflict with Plan terms shall be void.

Questions concerning the provisions of this Agreement should be directed to the Company’s General Counsel: 630/227-2050; fax 630/227-2059.

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EX-10.3

Exhibit 10.3

Fiscal 2018 Form

AAR CORP.

Restricted Stock Agreement
(“Agreement”)

Subject to the provisions of the AAR CORP. 2013 Stock Plan and the Long-Term Incentive Plan for Fiscal 2018 (together, the “Plan”), the terms of which are hereby incorporated by reference, and in consideration of the agreements of the Grantee herein provided, AAR CORP. a Delaware corporation (“Company”), hereby grants to Grantee a restricted stock award (“Award”), effective July 10, 2017(“Date of Award”), for the number of shares of common stock (“Common Stock”) of the Company, $1.00 par value (“Award Shares”) set forth in the Company’s notification of Award grant letter to the Grantee, and incorporated herein by reference, subject to the forfeiture and nontransferability provisions hereof and the other terms and conditions set forth herein:

1.Acceptance by Grantee.  The Award is conditioned upon the acceptance by the Grantee of the terms and conditions of the Award as set forth in this Agreement.  The Grantee must confirm acceptance of the Award and this Agreement on Morgan Stanley’s web site (www.stockplanconnect.com).  If the Grantee does not accept the Award and this Agreement within 30 days from the date of the notification of the Award, the Award referenced herein shall expire unless the acceptance date is extended in writing by the Company.

2.Restrictions.  The Grantee represents that he is accepting the Award Shares without a view to the distribution of said Shares and that he will not sell, assign, transfer, pledge or otherwise encumber the Award Shares during the period commencing on the Date of Award and ending on the date restrictions applicable to such Award Shares are released pursuant to paragraph 3 of this Agreement (“Restrictive Period”).

3.Release of Restrictions.  Subject to the provisions of paragraph 4 below, the restrictions described in paragraph 2 above shall be released with respect to 100% of the Award Shares on July 31, 2020, except as follows:

(a)In General.  If the Grantee’s employment with the Company and all Subsidiaries of the Company terminates prior to the last day of the Restrictive Period for any reason other than Retirement, death or Disability, the Grantee shall forfeit to the Company all Award Shares not previously released from the restrictions of paragraph 2 hereof.

(b)Retirement.  If the Grantee’s employment with the Company and all Subsidiaries of the Company terminates by reason of Retirement prior to the last day of the Restrictive Period, the Restrictive Period shall terminate on July 31, 2020.

For this purpose, “Retirement” means the Grantee’s voluntary termination of employment, or his termination of employment by the Company or a Subsidiary without Cause (as defined in Section 4 below), when he has (i) attained age 65 or (ii) attained age 55 and his age plus the number of his consecutive years of service with the Company and Subsidiaries is at least 75.

(c)Death or Disability.  If the Grantee’s employment with the Company and all Subsidiaries of the Company terminates by reason of death or Disability occurring on or after the Date of Award and on or before July 31, 2020, the Restrictive Period shall terminate as to a pro-rata share of Award Shares determined by multiplying the number of Award Shares by a fraction, the numerator of which is the number of full months that have elapsed from the Date of Award to the date of death or Disability, and the denominator of which is 36 (the number of full months in the Restrictive Period.  The remaining shares shall be forfeited and returned to the Company.  For this purpose, “Disability” means the inability of the Grantee to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment which can be expected to result in death or which has lasted or can be expected to last for a continuous period of not less than 12 months.

(d)Restrictive Covenant.  If at any time prior to release from the restrictions hereunder, Grantee, without the Company’s express written consent, directly or indirectly, alone or as a member of a partnership, group, or joint venture or as an employee, officer, director, or greater than 1% stockholder of any corporation, or in any capacity engages in any activity which is competitive with any of the businesses conducted by the Company or its affiliated companies at any time during the Grantee’s term of employment, the Grantee shall forfeit to the Company all Award Shares not previously released from the restrictions of paragraph 2 hereof.

4.Change in Control.  In the event of a Change in Control of the Company, and within two years following such Change in Control, either the Grantee’s employment is terminated by the Company or a Subsidiary of the Company without Cause, or the Grantee terminates his employment with the Company and all Subsidiaries for Good Reason, then notwithstanding any conditions or restrictions contained in this Agreement, the Restrictive Period shall terminate as to all Award Shares not previously released.  For this purpose, (a) “Cause” means (i) the Grantee’s dishonesty, fraud or breach of trust, gross negligence or substantial misconduct in the performance of, or substantial nonperformance of, his assigned duties or willful violation of Company policy, (ii) any act or omission by the Grantee that is a substantial cause for a regulatory body with jurisdiction over the Company to request or recommend the suspension or removal of the participant or to impose sanctions upon the Company or the Grantee, or (iii) a material breach by the Grantee of any applicable employment agreement between him and the Company, and in each case, the Company shall have the sole discretion to determine whether a Grantee’s termination of employment is for Cause; and (b) “Good Reason” means (i) a material reduction in the nature or scope of the Grantee’s duties, responsibilities, authority, power or functions from those enjoyed by the Grantee immediately prior to the Change in Control, or a material reduction in the Grantee’s compensation (including benefits), occurring at any time during the two-year period immediately after the Change in Control, or (ii) a relocation of the Grantee’s primary place of employment of at least 100 miles.

5.Change in Outstanding Shares.  In the event of any change in the outstanding shares of Common Stock by reason of any stock dividend or split, recapitalization, merger, consolidation, combination or exchange of shares or other similar corporate change, the Award Shares shall be treated in the same manner in any such transaction as other shares of Common Stock.  Any additional shares of stock received by Grantee with respect to the Award Shares in any such transaction shall be subject to the same restrictions as are then applicable to those Award Shares for which the additional shares have been issued.

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6.Rights of Grantee.  As the holder of the Award Shares, the Grantee is entitled to all of the rights of a stockholder of AAR CORP. with respect to any of the Award Shares, when issued, including, but not limited to, the right to receive dividends declared and payable since the Date of Award.

7.Shares.  In aid of the restrictions set forth in paragraph 2, the Grantee will be required to execute a stock power in favor of the Company, which will be cancelled upon release of restrictions with respect to Award Shares released.  Award Shares shall be held by the Company in electronic book entry form on the records of the Company’s Transfer Agent, together with the executed stock power, for the account of the Grantee until such restrictions are released pursuant to the terms hereof, or such Award Shares are forfeited to the Company as provided by the Plan or this Agreement.  The Grantee shall be entitled to the Award Shares as to which such restrictions have been released, and the Company agrees to issue such Award Shares in electronic form on the records of the Transfer Agent.  Upon request by the Grantee, the Transfer Agent will transfer such released Award Shares in electronic form to the Grantee’s broker for the Grantee’s account or issue certificates in the name of the Grantee representing the Award Shares for which restrictions have been released.

8.Legend.  The Company may, in its discretion, place a legend or legends on any electronic shares or certificates representing Award Shares issued to the Grantee that the Company believes is required to comply with any law or regulation.

9.Committee Powers.  The Committee may subject the Award Shares to such conditions, limitations or restrictions as the Committee determines to be necessary or desirable to comply with any law or regulation or with the requirements of any securities exchange.  At any time during the Restrictive Period, the Committee may reduce or terminate the Restrictive Period otherwise applicable to all or any portion of the Award Shares.

10.Withholding Taxes.  The Grantee shall pay to the Company an amount sufficient to satisfy all minimum tax withholding requirements, including those arising under federal, state and local income tax laws, prior to the delivery of any Award Shares.  Payment of the minimum withholding requirement may be made by one or more of the following methods:  (a) in cash, (b) in cash received from a broker-dealer to whom the Grantee has submitted irrevocable instructions to deliver the amount of withholding tax to the Company from the proceeds of the sale of shares of Common Stock subject to the Award, (c) by delivery to the Company of other Common Stock owned by the Grantee that is acceptable to the Company, valued at its fair market value on the date of payment, (d) by certifying to ownership by attestation of such previously owned Common Stock, or (e) by having shares of Common Stock withheld from the Award Shares otherwise distributable to the Grantee.  Payment shall be made pursuant to the on-line procedures set forth on the AAR 2013 Stock Benefit Plan online web site through Morgan Stanley (www.stockplanconnect.com).

11.Postponement of Distribution.  Notwithstanding anything herein to the contrary, the distribution of any portion of the Award Shares shall be subject to action by the Board taken at any time in its sole discretion (a) to effect, amend or maintain any necessary registration of the Plan or the Award Shares distributable in satisfaction of this Award under the Securities Act of 1933, as amended, or the securities laws of any applicable jurisdiction, (b) to permit any action

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to be taken in order to (i) list such Award Shares on a stock exchange if the Common Stock is then listed on such exchange or (ii) comply with restrictions or regulations incident to the maintenance of a public market for its Shares of Common Stock, including any rules or regulations of any stock exchange on which the Award Shares are listed, or (c) to determine that such Award Shares and the Plan are exempt from such registration or that no action of the kind referred to in (b)(ii) above needs to be taken; and the Company shall not be obligated by virtue of any terms and conditions of this Award or any provision of this Agreement or the Plan to issue or release the Award Shares in violation of the Securities Act of 1933 or the law of any government having jurisdiction thereof.  Any such postponement shall not shorten the term of any restriction attached to the Award Shares and neither the Company nor its directors or officers shall have any obligation or liability to the Grantee or to any other person as to which issuance under the Award Shares was delayed.

12.Recoupment.  Notwithstanding any other provision of this Agreement, to the extent required by applicable law, including the Dodd-Frank Wall Street Reform and Consumer Protection Act, or pursuant to the Company’s policy as may be in effect, the Company shall have the right to seek recoupment of all or any portion of an Award (including by forfeiture of any outstanding Award Shares or by the Grantee’s remittance to the Company of Award Shares pursuant to which the restrictions previously lapsed or of a cash payment equal to Award Shares pursuant to which the restrictions previously lapsed).  The value with respect to which such recoupment is sought shall be determined by the Company.  The Company shall be entitled, as permitted by applicable law, to deduct the amount of such payment from any amounts the Company may owe to the Grantee.

13.Miscellaneous.

(a)This Award and this Agreement shall be construed, administered and governed in all respects under and by the laws of the State of Illinois.

(b)Capitalized terms used herein and not defined herein will have the meanings set forth in the Plan.

(c)Nothing in the Award shall confer on the Grantee any right to be or to continue in the employ of the Company or any of its Subsidiaries or shall interfere in any way with the right of the Company or any of its Subsidiaries to terminate the employment of the Grantee at any time for any reason or no reason.

(d)This Agreement has been examined by the parties hereto, and accordingly the rule of construction that ambiguities be construed against a party which causes a document to be drafted shall have no application in the construction or interpretation hereof.  If any part of this Agreement is held invalid for any reason, the remainder hereof shall nevertheless remain in full force and effect.

(e)This Agreement constitutes the entire agreement between the parties concerning the subject matter hereof and any prior understanding or representation of any kind antedating this Agreement concerning such subject matter shall not be binding upon either party except to the extent incorporated herein; provided, however, that this Agreement, including

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paragraph 3, shall be subject to the provisions of any written employment or severance agreement that has been or may be executed by the Grantee and the Company, and the provisions in such employment or severance agreement concerning the Award shall supercede any inconsistent or contrary provision of this Agreement.  No consent, waiver, modification or amendment hereof, or additional obligation assumed by either party in connection herewith, shall be binding unless evidenced by a writing signed by both parties and referring specifically hereto.  No consent, waiver, modification or amendment with respect hereto shall be construed as applicable to any past or future events other than the one in respect of which it was specifically made.

(f)This Agreement shall be construed consistent with the provisions of the Plan and in the event of any conflict between the terms of this Agreement and the terms of the Plan, the terms of the Plan shall control and any terms of this Agreement which conflict with Plan terms shall be void.

Questions concerning the provisions of this Agreement should be directed to the Company’s Corporate Secretary:  630/227-2050; fax 630/227-2059.

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EX-10.4

Exhibit 10.4

Fiscal 2018 Form

AAR CORP.

Performance Restricted Stock Agreement

(“Agreement”)

Subject to the provisions of the AAR CORP. 2013 Stock Plan and the Long-Term Incentive Plan for Fiscal 2018 (together, the “Plan”), the terms of which are hereby incorporated by reference, and in consideration of the agreements of the Grantee herein provided, AAR CORP., a Delaware corporation (“Company”), hereby grants to the Grantee a performance restricted stock award (“Award”), effective July 10, 2017 (“Date of Award”), for the number of shares of common stock (“Common Stock”) of the Company, $1.00 par value (“Award Shares”) set forth in the Company’s notification of Award grant letter to the Grantee and incorporated herein by reference, subject to the forfeiture and nontransferability provisions hereof and the other terms and conditions set forth herein:

1.Acceptance By Grantee.  The Award is conditioned upon the acceptance by the Grantee of the terms and conditions of the Award as set forth in this Agreement.  The Grantee must confirm acceptance of the Award and this Agreement on Morgan Stanley’s web site (www.stockplanconnect.com).  If the Grantee does not accept the Award and this Agreement within 30 days from the date of the notification of the Award, the Award referenced herein shall expire unless the acceptance date is extended in writing signed by the Company.

2.Performance Condition.  The Award is conditioned upon the Company meeting the cumulative net income and return on invested capital performance goal targets for the three-year performance period beginning June 1, 2017 and ending May 31, 2020, as set forth in the Plan.  If the Company does not meet the cumulative net income and return on invested capital performance goal targets at the threshold level set forth in the Plan, the Grantee shall forfeit to the Company all Award Shares.  If the Company meets the cumulative net income and return on invested capital performance goal targets at or above the threshold level but less than the target level, the Grantee shall forfeit that number of Award Shares as determined under the Plan.

3.Restrictions.  The Grantee represents that he is accepting the Award Shares without a view toward distribution of said Award Shares and that he will not sell, assign, transfer, pledge or otherwise encumber the Award Shares during the period commencing on the Date of Award and ending on the date the restrictions applicable to such Award Shares are released pursuant to paragraph 4 of this Agreement (“Restrictive Period”).

4.Release of Restrictions. Subject to the provisions of paragraphs 2 and 5, the restrictions described in paragraph 3 above shall be released with respect to 100% of the Award Shares on July 31, 2020, except as follows:

(a)In General.  Subject to the provisions of paragraph 2, if the Grantee’s employment with the Company and all Subsidiaries of the Company terminates prior to the last day of the Restrictive Period for any reason other than Retirement, death or Disability, the Grantee shall forfeit to the Company all Award Shares not previously released from the restrictions of paragraph 3 hereof.

(b)Retirement.  Subject to the provisions of paragraph 2, if the Grantee’s employment with the Company and all Subsidiaries of the Company terminates by reason of

Retirement prior to the last day of the Restrictive Period, the Restrictive Period shall terminate on July 31, 2020.

For this purpose, “Retirement” means the Grantee’s voluntary termination of employment, or his termination of employment by the Company or a Subsidiary without Cause (as defined in Section 5 below), when he has (A) attained age 65 or (B) attained age 55 and his age plus the number of his consecutive years of service with the Company and Subsidiaries is at least 75.

(c)Death or Disability.  Subject to the provisions of paragraph 2, if the Grantee’s employment with the Company and all Subsidiaries of the Company terminates by reason of death or Disability occurring on or after the Date of Award and on or before July 31, 2020, the Restrictive Period shall terminate as to a pro-rata share of Award Shares determined by multiplying the number of Award Shares by a fraction, the numerator of which is the number of full months that have elapsed from the Date of Award to the date of death or Disability, and the denominator of which is 36 (the number of full months in the Restrictive Period.  The remaining shares shall be forfeited and returned to the Company.  For this purpose, “Disability” means the inability of the Grantee to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment which can be expected to result in death or which has lasted or can be expected to last for a continuous period of not less than 12 months.

(d)Restrictive Covenant.  If at any time prior to the Award Shares’ release from the restrictions hereunder, the Grantee, without the Company’s express written consent, directly or indirectly, alone or as a member of a partnership, group, or joint venture or as an employee, officer, director, or greater than 1% stockholder of any corporation, or in any capacity engages in any activity which is competitive with any of the businesses conducted by the Company or its affiliated companies at any time during the Grantee’s term of employment, the Grantee shall forfeit to the Company all Award Shares not previously released from the restrictions of paragraph 3 hereof.

5.Change in Control.  In the event of a Change in Control of the Company, and within two years following such Change in Control, either the Grantee’s employment is terminated by the Company or a Subsidiary of the Company without Cause, or the Grantee terminates his employment with the Company and all Subsidiaries for Good Reason, then notwithstanding any conditions or restrictions contained in this Agreement, the Grantee shall be entitled to that number of Award Shares that would be available if the cumulative net income performance goal were met at the target level, and the Restrictive Period shall terminate as to all such Award Shares.  For this purpose, (a) “Cause” means (i) the Grantee’s dishonesty, fraud or breach of trust, gross negligence or substantial misconduct in the performance of, or substantial nonperformance of, his assigned duties or willful violation of Company policy, (ii) any act or omission by the Grantee that is a substantial cause for a regulatory body with jurisdiction over the Company to request or recommend the suspension or removal of the participant or to impose sanctions upon the Company or the Grantee, or (iii) a material breach by the Grantee of any applicable employment agreement between him and the Company, and in each case, the Company shall have the sole discretion to determine whether a Grantee’s termination of employment is for Cause; and (b) “Good Reason” means (i) a material reduction in the nature or scope of the Grantee’s duties, responsibilities, authority, power or functions from those enjoyed by the Grantee immediately prior to the Change in Control, or a material reduction in the

2

Grantee’s compensation (including benefits), occurring at any time during the two-year period immediately after the Change in Control, or (ii) a relocation of the Grantee’s primary place of employment of at least 100 miles.

6.Change in Outstanding Shares.  In the event of any change in the outstanding shares of Common Stock occurring through stock splits, stock dividends, stock consolidations, spin-offs, other distributions of assets to stockholders or assumption or conversion of outstanding Awards due to an acquisition after the Date of Award, the Award Shares shall be treated in the same manner in any such transaction as other shares of Common Stock. Any additional shares of Common Stock received by the Grantee with respect to the Award Shares in any such transaction shall be subject to the same restrictions as are then applicable to those Award Shares for which the additional shares have been issued.

7.Rights of Grantee.  As the holder of the Award Shares, the Grantee is entitled to all of the rights of a stockholder of AAR CORP. with respect to any of the Award Shares, when issued, including, but not limited to, the right to receive dividends declared and payable since the Date of Award; provided, however, that such dividends shall be accumulated and held by the Company until the performance condition described in paragraph 2 is met, or if earlier, as described in paragraph 5, at which time such accumulated dividends shall be paid to the Grantee in cash to the extent the performance condition is met or if applicable, as described in Section 5.  Any accumulated or unpaid dividends relating to Award Shares that are forfeited shall also be forfeited.

8.Shares.  In aid of the restrictions set forth in paragraph 3, the Grantee will be required to execute a stock power in favor of the Company which will be cancelled upon release of restrictions with respect to Award Shares released.  Award Shares shall be held by the Company in electronic book entry form on the records of the Company’s Transfer Agent, together with the executed stock power, for the account of the Grantee until such restrictions are released pursuant to the terms hereof, or such Award Shares are forfeited to the Company as provided by the Plan or this Agreement.  The Grantee shall be entitled to the Award Shares as to which such restrictions have been released, and the Company agrees to issue such Award Shares in electronic form on the records of the Transfer Agent. Upon request by the Grantee, the Transfer Agent will transfer such released Award Shares in electronic form to the Grantee’s broker for the Grantee’s account or issue certificates in the name of the Grantee representing the Award Shares for which restrictions have been released.

9.Legend.  The Company may, in its discretion, place a legend or legends on any electronic shares or certificates representing Award Shares issued to the Grantee that the Company believes is required to comply with any law or regulation.

10.Committee Powers.  The Committee may subject the Award Shares to such conditions, limitations or restrictions as the Committee determines to be necessary or desirable to comply with any law or regulation or with the requirements of any securities exchange. At any time during the Restrictive Period, the Committee may reduce or terminate the Restrictive Period otherwise applicable to all or any portion of the Award Shares.

11.Withholding Taxes.  The Grantee shall pay to the Company an amount sufficient to satisfy all minimum tax withholding requirements, including those arising under federal, state

3

and local income tax laws, prior to the delivery of any Award Shares.  Payment of the minimum withholding requirement may be made by one or more of the following methods:  (a) in cash, (b) in cash received from a broker-dealer to whom the Grantee has submitted irrevocable instructions to deliver the amount of withholding tax to the Company from the proceeds of the sale of shares of Common Stock subject to the Award, (c) by delivery to the Company of other Common Stock owned by the Grantee that is acceptable to the Company, valued at its fair market value on the date of payment, (d) by certifying to ownership by attestation of such previously owned Common Stock, or (e) by having shares of Common Stock withheld from the Award Shares otherwise distributable to the Grantee.  Payment shall be made pursuant to the on-line procedures set forth on the AAR 2013 Stock Benefit Plan online web site through Morgan Stanley (www.stockplanconnect.com).

12.Postponement of Distribution.  Notwithstanding anything herein to the contrary, the distribution of any portion of the Award Shares shall be subject to action by the Board taken at any time in its sole discretion (a) to effect, amend or maintain any necessary registration of the Plan or the Award Shares distributable in satisfaction of this Award under the Securities Act of 1933, as amended, or the securities laws of any applicable jurisdiction, (b) to permit any action to be taken in order to (i) list such Award Shares on a stock exchange if the Common Stock is then listed on such exchange or (ii) comply with restrictions or regulations incident to the maintenance of a public market for its Shares of Common Stock, including any rules or regulations of any stock exchange on which the Award Shares are listed, or (c) to determine that such Award Shares and the Plan are exempt from such registration or that no action of the kind referred to in (b)(ii) above needs to be taken; and the Company shall not be obligated by virtue of any terms and conditions of this Award or any provision of this Agreement or the Plan to issue or release the Award Shares in violation of the Securities Act of 1933 or the law of any government having jurisdiction thereof.  Any such postponement shall not shorten the term of any restriction attached to the Award Shares and neither the Company nor its directors or officers shall have any obligation or liability to the Grantee or to any other person as to which issuance under the Award Shares was delayed.

13.Recoupment.  Notwithstanding any other provision of this Agreement, to the extent required by applicable law, including the Dodd-Frank Wall Street Reform and Consumer Protection Act, or pursuant to the Company’s policy as may be in effect, the Company shall have the right to seek recoupment of all or any portion of an Award (including by forfeiture of any outstanding Award Shares or by the Grantee’s remittance to the Company of Award Shares pursuant to which the restrictions previously lapsed or of a cash payment equal to Award Shares pursuant to which the restrictions previously lapsed).  The value with respect to which such recoupment is sought shall be determined by the Company.  The Company shall be entitled, as permitted by applicable law, to deduct the amount of such payment from any amounts the Company may owe to the Grantee.

14.Miscellaneous.

(a)The Award and this Agreement shall be construed, administered and governed in all respects under and by the laws of the State of Illinois.

(b)Capitalized terms used herein and not defined herein will have the meanings set forth in the Plan.

4

(c)Nothing in the Award shall confer on the Grantee any right to be or to continue in the employ of the Company or any of its Subsidiaries or shall interfere in any way with the right of the Company or any of its Subsidiaries to terminate the employment of the Grantee at any time for any reason or no reason.

(d)This Agreement has been examined by the parties hereto, and accordingly the rule of construction that ambiguities be construed against a party which causes a document to be drafted shall have no application in the construction or interpretation hereof.  If any part of this Agreement is held invalid for any reason, the remainder hereof shall nevertheless remain in full force and effect.

(e)This Agreement constitutes the entire agreement between the parties concerning the subject matter hereof and any prior understanding or representation of any kind antedating this Agreement concerning such subject matter shall not be binding upon either party except to the extent incorporated herein; provided, however, that this Agreement, including paragraph 4, shall be subject to the provisions of any written employment or severance agreement that has been or may be executed by the Grantee and the Company, and the provisions in such employment or severance agreement concerning the Award shall supercede any inconsistent or contrary provision of this Agreement.  No consent, waiver, modification or amendment hereof, or additional obligation assumed by either party in connection herewith, shall be binding unless evidenced by a writing signed by both parties and referring specifically hereto.  No consent, waiver, modification or amendment with respect hereto shall be construed as applicable to any past or future events other than the one in respect of which it was specifically made.

(f)This Agreement shall be construed consistent with the provisions of the Plan and in the event of any conflict between the terms of this Agreement and the terms of the Plan, the terms of the Plan shall control and any terms of this Agreement which conflict with Plan terms shall be void.

Questions concerning the provisions of this Agreement should be directed to the Company’s Corporate Secretary: 630/227-2050; fax 630/227-2059.

5

EX-31.1

Exhibit 31.1

SECTION 302

CERTIFICATION

I, David P. Storch, certify that:

1.I have reviewed this quarterly report on Form 10-Q of AAR CORP. (the “Registrant”) for the quarterly period ending August 31, 2017;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Registrant as of, and for, the periods presented in this report;

4.The Registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Registrant and have:

a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)Evaluated the effectiveness of the Registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)Disclosed in this report any change in the Registrant’s internal control over financial reporting that occurred during the Registrant’s most recent fiscal quarter (the Registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Registrant’s internal control over financial reporting; and

5.The Registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Registrant’s auditors and the audit committee of the Registrant’s board of directors (or persons performing the equivalent functions):

a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Registrant’s ability to record, process, summarize and report financial information; and

b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant’s internal control over financial reporting.

DATE:  September 20, 2017

/s/ DAVID P. STORCH

David P. Storch

Chairman and Chief Executive Officer

EX-31.2

Exhibit 31.2

SECTION 302

CERTIFICATION

I, Timothy J. Romenesko, certify that:

1.I have reviewed this quarterly report on Form 10-Q of AAR CORP. (the “Registrant”) for the quarterly period ending August 31, 2017;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Registrant as of, and for, the periods presented in this report;

4.The Registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Registrant and have:

a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)Evaluated the effectiveness of the Registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)Disclosed in this report any change in the Registrant’s internal control over financial reporting that occurred during the Registrant’s most recent fiscal quarter (the Registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Registrant’s internal control over financial reporting; and

5.The Registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Registrant’s auditors and the audit committee of the Registrant’s board of directors (or persons performing the equivalent functions):

a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Registrant’s ability to record, process, summarize and report financial information; and

b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant’s internal control over financial reporting.

DATE:  September 20, 2017

/s/ TIMOTHY J. ROMENESKO

Timothy J. Romenesko

Vice Chairman

(Principal Financial Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the AAR CORP. (the “Company”) quarterly report on Form 10-Q for the period ending August 31, 2017 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, David P. Storch, Chairman and Chief Executive Officer of the Company, certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:   September 20, 2017

/s/ DAVID P. STORCH

David P. Storch

Chairman and Chief Executive Officer

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the AAR CORP. (the “Company”) quarterly report on Form 10-Q for the period ending August 31, 2017 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Timothy J. Romenesko, Vice Chairman of the Company, certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:   September 20, 2017

/s/ TIMOTHY J. ROMENESKO

Timothy J. Romenesko

Vice Chairman

(Principal Financial Officer)

XML

Document and Entity Information	3 Months Ended
	Aug. 31, 2017 shares
Document and Entity Information
Entity Registrant Name	AAR CORP
Entity Central Index Key	0000001750
Document Type	10-Q
Document Period End Date	Aug. 31, 2017
Amendment Flag	false
Current Fiscal Year End Date	--05-31
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding	34,622,093
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q1

XML

Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Aug. 31, 2017	May 31, 2017
Current assets:
Cash and cash equivalents	$ 15.1	$ 10.3
Accounts receivable, less allowances of $6.1 and $5.8, respectively	264.7	251.4
Inventories	473.0	483.1
Rotable spares and equipment on or available for short-term lease	118.2	118.0
Deposits, prepaids and other	33.7	25.7
Total current assets	904.7	888.5
Property, plant and equipment, net of accumulated depreciation of $398.4 and $413.9, respectively	198.1	201.9
Other assets:
Goodwill	115.5	115.4
Intangible assets, net of accumulated amortization of $30.9 and $29.8, respectively	31.7	32.8
Rotable assets supporting long-term programs	167.7	159.6
Other	114.0	105.9
Total other assets	428.9	413.7
Total assets	1,531.7	1,504.1
Current liabilities:
Current maturities of long-term debt	2.0	2.0
Accounts and trade notes payable	176.3	177.4
Accrued liabilities	133.8	155.7
Total current liabilities	312.1	335.1
Long-term debt, less current maturities	189.0	155.3
Deferred tax liabilities	37.7	37.2
Other liabilities and deferred income	68.2	62.3
Total noncurrent liabilities	294.9	254.8
Equity:
Preferred stock, $1.00 par value, authorized 250,000 shares; none issued
Common stock, $1.00 par value, authorized 100,000,000 shares; issued 45,300,786 and 45,175,302 shares at cost, respectively	45.3	45.2
Capital surplus	460.3	460.8
Retained earnings	735.9	727.9
Treasury stock, 10,678,693 and 10,820,844 shares at cost, respectively	(277.8)	(279.8)
Accumulated other comprehensive loss	(39.0)	(39.9)
Total equity	924.7	914.2
Total liabilities and equity	$ 1,531.7	$ 1,504.1

XML

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Aug. 31, 2017	May 31, 2017
Condensed Consolidated Balance Sheets
Accounts receivable, allowances (in dollars)	$ 6.1	$ 5.8
Property, plant and equipment, accumulated depreciation (in dollars)	398.4	413.9
Intangible assets, accumulated amortization (in dollars)	$ 30.9	$ 29.8
Preferred stock, par value (in dollars per share)	$ 1.00	$ 1.00
Preferred stock, authorized shares	250,000	250,000
Preferred stock, issued shares	0	0
Common stock, par value (in dollars per share)	$ 1.00	$ 1.00
Common stock, authorized shares	100,000,000	100,000,000
Common stock, issued shares	45,300,786	45,175,302
Treasury stock, shares	10,678,693	10,820,844

XML

Condensed Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Sales:
Sales from products	$ 244.7	$ 213.9
Sales from services	194.5	190.9
Total sales	439.2	404.8
Cost and operating expenses:
Cost of products	199.6	179.5
Cost of services	175.1	163.8
Selling, general and administrative	48.0	44.8
Total costs and operating expenses	422.7	388.1
Operating income	16.5	16.7
Interest expense	(1.7)	(1.3)
Income from continuing operations before provision for income taxes	14.8	15.4
Provision for income taxes	4.2	5.5
Income from continuing operations	10.6	9.9
Loss from discontinued operations		(0.4)
Net income	$ 10.6	$ 9.5
Earnings per share - basic:
Earnings from continuing operations	$ 0.31	$ 0.29
Loss from discontinued operations		(0.01)
Earnings per share - basic	0.31	0.28
Earnings per share - diluted:
Earnings from continuing operations	0.31	0.29
Loss from discontinued operations		(0.01)
Earnings per share - diluted	$ 0.31	$ 0.28

XML

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Condensed Consolidated Statements of Comprehensive Income
Net income	$ 10.6	$ 9.5
Other comprehensive income (loss), net of tax expense (benefit):
Currency translation adjustments, net of tax of $0 and $0.1	0.6	(1.5)
Pension and other post-retirement plans:
Amortization of actuarial loss and prior service cost included in net income, net of tax of $0.1 and $0.1	0.3	0.3
Other comprehensive income (loss), net of tax	0.9	(1.2)
Comprehensive income	$ 11.5	$ 8.3

XML

Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Condensed Consolidated Statements of Comprehensive Income
Currency translation adjustments, tax	$ 0.0	$ 0.1
Amortization of actuarial loss and prior service cost included in net income, tax	$ 0.1	$ 0.1

XML

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Cash flows used in operating activities:
Net income	$ 10.6	$ 9.5
Loss from discontinued operations		0.4
Income from continuing operations	10.6	9.9
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and intangible amortization	14.6	12.4
Stock-based compensation	2.6	2.5
Amortization of overhaul costs	3.0	4.5
Deferred tax provision (benefit)	0.2	(0.9)
Gain on asset disposal		(2.6)
Changes in certain assets and liabilities:
Accounts receivable	(13.2)	9.7
Inventories	10.8	3.0
Rotable spares and equipment on or available for short-term lease	(0.2)	(0.7)
Equipment supporting long-term programs	(11.8)	(17.3)
Accounts and trade notes payable	(0.7)	(8.4)
Accrued and other liabilities	(29.6)	(5.8)
Other, primarily program and overhaul costs	(6.4)	(6.8)
Net cash used in operating activities - continuing operations	(20.1)	(0.5)
Net cash used in operating activities - discontinued operations	(0.5)	(0.6)
Net cash used in operating activities	(20.6)	(1.1)
Cash flows used in investing activities:
Property, plant and equipment expenditures	(8.2)	(9.4)
Proceeds from asset disposals	1.3	3.0
Investment in aircraft joint ventures		(0.2)
Net cash used in investing activities - continuing operations	(6.9)	(6.6)
Cash flows provided from (used in) financing activities:
Short-term borrowings, net	34.0	7.0
Reduction in long-term borrowings		(5.0)
Cash dividends	(2.6)	(2.6)
Purchase of treasury stock	(5.2)	(14.8)
Stock option exercises	6.5	0.6
Other	(0.4)	(0.4)
Net cash provided from (used in) financing activities - continuing operations	32.3	(15.2)
Effect of exchange rate changes on cash		(0.4)
Increase (Decrease) in cash and cash equivalents	4.8	(23.3)
Cash and cash equivalents, beginning of period	10.3	31.2
Cash and cash equivalents, end of period	$ 15.1	$ 7.9

XML

Condensed Consolidated Statements of Changes in Equity - 3 months ended Aug. 31, 2017 - USD ($) $ in Millions	Common Stock	Capital Surplus	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Total
Balance at May. 31, 2017	$ 45.2	$ 460.8	$ 727.9	$ (279.8)	$ (39.9)	$ 914.2
Increase (Decrease) in Stockholders' Equity
Net income			10.6			10.6
Cash dividends			(2.6)			(2.6)
Stock option activity		(0.6)		6.6		6.0
Restricted stock activity	0.1	0.1		0.6		0.8
Repurchase of shares				(5.2)		(5.2)
Other comprehensive income, net of tax					0.9	0.9
Balance at Aug. 31, 2017	$ 45.3	$ 460.3	$ 735.9	$ (277.8)	$ (39.0)	$ 924.7

XML

Basis of Presentation

3 Months Ended

Aug. 31, 2017

Basis of Presentation

Basis of Presentation

Note 1 — Basis of Presentation

AAR CORP. and its subsidiaries are referred to herein collectively as “AAR,” “Company,” “we,” “us,” and “our,” unless the context indicates otherwise.  The accompanying Condensed Consolidated Financial Statements include the accounts of AAR and its subsidiaries after elimination of intercompany accounts and transactions.

We have prepared these statements without audit, pursuant to the rules and regulations of the United States Securities and Exchange Commission (“SEC”).  The Condensed Consolidated Balance Sheet as of May 31, 2017 has been derived from audited financial statements.  To prepare the financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”), management has made a number of estimates and assumptions relating to the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities.  Actual results could differ from those estimates.  Certain information and note disclosures, normally included in comprehensive financial statements prepared in accordance with GAAP, have been condensed or omitted pursuant to such rules and regulations of the SEC.  These Condensed Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and notes thereto included in our latest annual report on Form 10-K.

In the opinion of management, the condensed consolidated financial statements reflect all adjustments (which consist only of normal recurring adjustments) necessary to present fairly the condensed consolidated financial position of AAR CORP. and its subsidiaries as of August 31, 2017, the Condensed Consolidated Statements of Income, Condensed Consolidated Statements of Comprehensive Income, and the Condensed Consolidated Statements of Cash Flows for the three-month periods ended August 31, 2017 and 2016, and the Condensed Consolidated Statement of Changes in Equity for the three-month period ended August 31, 2017.  The results of operations for such interim periods are not necessarily indicative of the results for the full year.

New Accounting Pronouncements

In May 2014, the FASB issued Accounting Standards Update (“ASU”) No. 2014-09, Revenue from Contracts with Customers, which provides guidance for revenue recognition.  This ASU affects any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of non-financial assets.  This ASU will supersede the revenue recognition requirements in Accounting Standards Codification (“ASC”) 605, Revenue Recognition, and most industry-specific guidance.  This ASU will also supersede certain cost guidance included in Subtopic 605-35, Revenue Recognition-Construction-Type and Production-Type Contracts.  In August 2015, the FASB issued ASU No. 2015-14 which deferred the effective date of the new standard by one year which will make the new standard effective for us beginning June 1, 2018.  The ASU may be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized as of the date of initial application.  We continue to analyze and document our significant customer contracts to evaluate the potential impact of the adoption of this new ASU.  We have not yet selected a transition method for adoption nor determined the potential effect on our accounting policies and consolidated financial statements.

In February 2016, the FASB issued ASU 2016-02, Leases.  This ASU amends the existing accounting standards for lease accounting, including requiring lessees to recognize most leases on their balance sheets, including those classified as operating leases under the current accounting guidance.  In addition, this ASU will require new qualitative and quantitative disclosures about the Company’s leasing activities.  This new standard will be effective for us beginning June 1, 2019 with early adoption permitted.  This ASU requires a modified retrospective transition approach for all leases existing at, or entered into after, the date of initial application, with an option to use certain transition relief.  We are in the preliminary phases of assessing the effect of this ASU on our portfolio of leases. While this assessment continues, we have not yet selected a transition date nor have we determined the effect of this ASU on our consolidated financial statements.

In March 2016, the FASB issued ASU 2016-09, “Improvements to Employee Share-Based Payment Accounting,” which amends ASC Topic 718, Compensation — Stock Compensation.  This ASU requires excess tax benefits or deficiencies for share-based payments be recorded in the period shares vest as income tax expense or benefit, rather than within equity.  Cash flows related to excess tax benefits will be included in operating activities and will no longer be classified as a financing activity. We adopted this ASU on June 1, 2017 and recognized excess tax benefits of $1.2 million as a reduction to income tax expense during the three-months ended August 31, 2017.  We have also presented the excess tax benefits within operating activities in the condensed consolidated statement of cash flows for the three-months ended August 31, 2017.  As permitted, we adopted the statement of cash flow presentation guidance on a prospective basis with no adjustments to the previously reported amounts.

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Discontinued Operations

3 Months Ended

Aug. 31, 2017

Discontinued Operations

Discontinued Operations

Note 2 — Discontinued Operations

During the first quarter of fiscal 2017, we completed the shut down of the metal machining operation of our Precision Systems Manufacturing business.  This business is reported as discontinued operations for all periods presented.  Liabilities of discontinued operations of $6.5 million and $6.9 million at August 31, 2017 and May 31, 2017, respectively, were classified as Accrued Liabilities on the Condensed Consolidated Balance Sheet.

Unless otherwise noted, amounts and disclosures throughout these Notes to Condensed Consolidated Financial Statements relate to our continuing operations.

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Revenue Recognition

3 Months Ended

Aug. 31, 2017

Revenue Recognition

Revenue Recognition

Note 3 — Revenue Recognition

Sales and related cost of sales for product sales are recognized upon shipment of the product to the customer.  Our standard terms and conditions provide that title passes to the customer when the product is shipped to the customer.  Sales of certain defense products are recognized upon customer acceptance, which includes transfer of title.  Under the majority of our expeditionary airlift services contracts, we are paid and record as revenue a fixed daily amount per aircraft for each day an aircraft is available to perform airlift services.  In addition, we are paid and record as revenue an amount which is based on number of hours flown.  Sales from services and the related cost of services are generally recognized when customer-owned material is shipped back to the customer.  We have adopted this accounting policy because at the time the customer-owned material is shipped back to the customer, all services related to that material are complete as our service agreements generally do not require us to provide services at customer sites.  Furthermore, serviced units are typically shipped to the customer immediately upon completion of the related services.  Sales and related cost of sales for certain large airframe maintenance contracts and performance-based logistics programs are recognized by the percentage of completion method, based on the relationship of costs incurred to date to the estimated total costs.  We recognized favorable cumulative catch-up adjustments of $3.8 million during the three-month period ended August 31, 2016 related to changes in estimated profitability of these programs.

Lease revenues are recognized as earned.  Income from monthly or quarterly rental payments is recorded in the pertinent period according to the lease agreement.  However, for leases that provide variable rents, we recognize lease income on a straight-line basis.  In addition to a monthly lease rate, some engine leases require an additional rental amount based on the number of hours the engine is used in a particular month.  Lease income associated with these contingent rentals is recorded in the period in which actual usage is reported to us by the lessee, which is normally the month following the actual usage.

Certain supply chain management programs we provide to our customers contain multiple elements or deliverables, such as program and warehouse management, parts distribution, and maintenance and repair services.  We recognize revenue for each element or deliverable that can be identified as a separate unit of accounting at the time of delivery based upon the relative fair value of the products and services.

In June 2016, the U.S. Air Force awarded the new contract for the KC-10 Extender Contractor Logistics Support Program (“KC-10 Program”) to a competitor.  Our principal services under the prior contract for the KC-10 Program were completed in January 2017; however, we have provided limited services since that date and will continue to do so for an unspecified period of time.  Sales for the KC-10 Program during the three-month periods ended August 31, 2017 and 2016 were $11.7 million and $38.6 million, respectively.  Gross profit for the KC-10 Program during the three-month periods ended August 31, 2017 and 2016 was $1.1 million and $2.8 million, respectively.

Included in accounts receivable as of August 31, 2017 and May 31, 2017, were $10.8 million and $14.5 million, respectively, of unbilled accounts receivable related to the KC-10 Program.  These unbilled accounts receivable related to costs we have incurred on parts that were requested and accepted by our customer to support the KC-10 Program.  These costs have not been billed by us because the customer has not yet issued the final paperwork necessary to allow for billing.

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Accounting for Stock-Based Compensation

3 Months Ended

Aug. 31, 2017

Accounting for Stock-Based Compensation

Accounting for Stock-Based Compensation

Note 4 — Accounting for Stock-Based Compensation

Restricted Stock

In the three-month period ended August 31, 2017, as part of our annual long-term stock incentive compensation, we granted 98,750 shares of performance-based restricted stock and 24,425 shares of time-based restricted stock to eligible employees.  The grant date fair value per share for these shares was $35.26 (the closing price on the grant date).  In June 2017, we also granted 55,000 shares of time-based restricted stock to members of the Board of Directors with a grant date fair value per share of $34.95.

Expense charged to operations for restricted stock during the three-month periods ended August 31, 2017 and 2016 was $1.4 million and $1.3 million, respectively.

Stock Options

In July 2017, as part of our annual long-term stock incentive compensation, we granted 453,450 stock options to eligible employees at an exercise price of $35.26 and weighted average fair value of $9.27.  The fair value of stock options was estimated on the date of grant using the Black-Scholes option pricing model with the following assumptions:

Risk-free interest rate	1.8	%
Expected volatility of common stock	31.7	%
Dividend yield	0.9	%
Expected option term in years	4.3

The total intrinsic value of stock options exercised during the three-month periods ended August 31, 2017 and 2016 was $5.0 million and $0.3 million, respectively.   Expense charged to operations for stock options during the three-month periods ended August 31, 2017 and 2016 was $1.1 million and $1.2 million, respectively.

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Inventory

3 Months Ended

Aug. 31, 2017

Inventory

Inventory

Note 5 — Inventory

The summary of inventories is as follows:

	August 31,		May 31,
	2017		2017
Raw materials and parts	$	45.9	$	45.0
Work-in-process	29.3		25.8
Aircraft and engine parts, components and finished goods	379.8		393.1
Aircraft held for sale and related support parts	18.0		19.2
	$	473.0	$	483.1

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Supplemental Cash Flow Information

3 Months Ended

Aug. 31, 2017

Supplemental Cash Flow Information

Supplemental Cash Flow Information

Note 6 — Supplemental Cash Flow Information

	Three Months Ended
	August 31,
	2017		2016
Interest paid	$	1.4	$	1.0
Income taxes paid	1.3		1.5
Income tax refunds received	—		1.0

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Financing Arrangements

3 Months Ended

Aug. 31, 2017

Financing Arrangements

Financing Arrangements

Note 7 — Financing Arrangements

A summary of the carrying amount of our debt is as follows:

	August 31,			May 31,
	2017			2017
Revolving Credit Facility expiring November 1, 2021 with interest payable monthly	$	165.0		$	131.0
Industrial revenue bond (secured by property, plant and equipment) due August 1, 2018 with interest payable monthly	25.0			25.0
Capital lease obligations	2.9			3.3
Total debt	192.9			159.3
Current maturities of debt	(2.0		)	(2.0		)
Debt issuance costs, net	(1.9		)	(2.0		)
Long-term debt	$	189.0		$	155.3

At August 31, 2017, our variable rate and fixed rate debt had a fair value that approximates the carrying value of $192.9 million and are classified as Level 2 in the fair value hierarchy.

The industrial revenue bond that matures on August 1, 2018 has been classified as a long-term liability due to our intent and ability to refinance this bond on a long-term basis using our Revolving Credit Facility.

Our financing arrangements also requires us to comply with leverage and interest coverage ratios, maintain a minimum net working capital level, and comply with certain affirmative and negative covenants, including those relating to financial reporting and notification, payment of indebtedness, cash dividends, taxes and other obligations, compliance with applicable laws, and limitations on additional liens, indebtedness, acquisitions, investments and disposition of assets.  The Revolving Credit Facility also requires our significant domestic subsidiaries, and any subsidiaries that guarantee our other indebtedness, to provide a guarantee of payment under the Revolving Credit Facility.  At August 31, 2017, we were in compliance with the financial and other covenants in our financing agreements.

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Earnings per Share

3 Months Ended

Aug. 31, 2017

Earnings Per Share

Earnings Per Share

Note 8 — Earnings per Share

The computation of basic earnings per share is based on the weighted average number of common shares outstanding during each period.  The computation of diluted earnings per share is based on the weighted average number of common shares outstanding during the period plus, when their effect is dilutive, incremental shares consisting of shares subject to stock options and shares issuable upon vesting of restricted stock awards.

In accordance with ASC 260-10-45, Share-Based Payment Arrangements and Participating Securities and the Two-Class Method, our unvested restricted stock awards are deemed participating securities since these shares are entitled to participate in dividends declared on common shares.  During periods of net income, the calculation of earnings per share for common stock excludes income attributable to unvested restricted stock awards from the numerator and excludes the dilutive impact of those shares from the denominator.  During periods of net loss, no effect is given to the participating securities because they do not share in the losses of the Company.

A reconciliation of the computations of basic and diluted earnings per share information for the three-month periods ended August 31, 2017 and 2016 is as follows:

	Three Months Ended August 31,
	2017			2016
Basic and Diluted EPS:
Income from continuing operations	$	10.6		$	9.9
Less income attributable to participating shares	(0.1		)	(0.1		)
Income from continuing operations attributable to common shareholders	10.5			9.8
Loss from discontinued operations attributable to common shareholders	—			(0.4		)
Net income attributable to common shareholders for earnings per share	$	10.5		$	9.4
Weighted average common shares outstanding—basic	34.0			33.9
Additional shares from assumed exercise of stock options	0.5			0.2
Weighted average common shares outstanding—diluted	34.5			34.1
Earnings per share — basic:
Earnings from continuing operations	$	0.31		$	0.29
Loss from discontinued operations	—			(0.01		)
Earnings per share — basic	$	0.31		$	0.28
Earnings per share — diluted:
Earnings from continuing operations	$	0.31		$	0.29
Loss from discontinued operations	—			(0.01		)
Earnings per share — diluted	$	0.31		$	0.28

At August 31, 2017, the average market price of our common shares was in excess of all of our outstanding options.  At August 31, 2016, stock options to purchase 2,041,000 shares of common stock were outstanding, but were not included in the computation of diluted earnings per share because the exercise price of each of these options was greater than the average market price of the common shares during the interim period then ended.

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Accumulated Other Comprehensive Loss

3 Months Ended

Aug. 31, 2017

Accumulated Other Comprehensive Loss

Accumulated Other Comprehensive Loss

Note 9 — Accumulated Other Comprehensive Loss

Changes in our accumulated other comprehensive loss (“AOCL”) by component for the three-month periods ended August 31, 2017 and 2016 were as follows:

	Currency Translation Adjustments			Pension Plans			Total
Balance at June 1, 2017	$	(1.7	)	$	(38.2	)	$	(39.9	)
Other comprehensive income before reclassifications	0.6			—			0.6
Amounts reclassified from AOCL	—			0.3			0.3
Total other comprehensive income	0.6			0.3			0.9
Balance at August 31, 2017	$	(1.1	)	$	(37.9	)	$	(39.0	)
Balance at June 1, 2016	$	(1.1	)	$	(43.3	)	$	(44.4	)
Other comprehensive loss before reclassifications	(1.5		)	—			(1.5		)
Amounts reclassified from AOCL	—			0.3			0.3
Total other comprehensive income (loss)	(1.5		)	0.3			(1.2		)
Balance at August 31, 2016	$	(2.6	)	$	(43.0	)	$	(45.6	)

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Sale of Product Line

3 Months Ended

Aug. 31, 2017

Sale of Product Line

Sale of Product Line

Note 10 — Sale of Product Line

During the three-month period ended August 31, 2016, we sold certain assets related to our temperature-controlled container product line to Sonoco Protective Solutions, Inc. (“Sonoco”) for $5 million.  The sale price included $3 million paid at closing and $2 million in non-contingent, deferred consideration due over the following two years.  We recognized a gain of $2.6 million on the sale.  In conjunction with the sale, we also entered into a long-term manufacturing agreement to supply temperature-controlled containers to Sonoco over the following three years.

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Business Segment Information

3 Months Ended

Aug. 31, 2017

Business Segment Information

Business Segment Information

Note 11 — Business Segment Information

Consistent with how our chief operating decision making officer (Chief Executive Officer) evaluates performance and the way we are organized internally, we report our activities in two business segments:  Aviation Services comprised of supply chain and maintenance, repair and overhaul (“MRO”) activities and Expeditionary Services comprised of airlift and mobility activities.

The Aviation Services segment consists of aftermarket support and services businesses that provide spare parts and maintenance support for aircraft operated by our commercial and government/defense customers.  Sales in the Aviation Services segment are derived from the sale and lease of a wide variety of new, overhauled and repaired engine and airframe parts and components to the commercial aviation and government and defense markets.  We provide customized inventory supply chain management, performance based logistics programs, aircraft component repair management services, and aircraft modifications.  The segment also includes repair, maintenance and overhaul of aircraft, landing gear and components.  Cost of sales consists principally of the cost of product, direct labor, and overhead.

The Expeditionary Services segment consists of businesses that provide products and services supporting the movement of equipment and personnel by the U.S. Department of Defense (“DoD”), foreign governments and non-governmental organizations.  Sales in the Expeditionary Services segment are derived from the delivery of airlift services primarily to government and defense customers and the design and manufacture of pallets, shelters, and containers used to support the U.S. military’s requirements for a mobile and agile force.  We also provide engineering, design, and system integration services for specialized command and control systems, and design and manufacture advanced composite materials for commercial, business and military aircraft.  Cost of sales consists principally of aircraft maintenance costs, depreciation, the cost of material to manufacture products, direct labor and overhead.

The accounting policies for the segments are the same as those described in Note 1 of Notes to Consolidated Financial Statements included in our annual report on Form 10-K for the year ended May 31, 2017.  Our chief operating decision making officer (Chief Executive Officer) evaluates performance based on the reportable segments and utilizes gross profit as a primary profitability measure.  Gross profit is calculated by subtracting cost of sales from sales.  The assets and certain expenses related to corporate activities are not allocated to the segments.  Our reportable segments are aligned principally around differences in products and services.

Selected financial information for each segment is as follows:

	Three Months Ended August 31,
	2017		2016
Net sales:
Aviation Services	$	371.3	$	334.6
Expeditionary Services	67.9		70.2
	$	439.2	$	404.8

	Three Months Ended August 31,
	2017		2016
Gross profit:
Aviation Services	$	57.8	$	53.4
Expeditionary Services	6.7		8.1
	$	64.5	$	61.5

The following table reconciles segment gross profit to income from continuing operations before provision for income taxes.

	Three Months Ended August 31,
	2017			2016
Segment gross profit	$	64.5		$	61.5
Selling, general and administrative	(48.0		)	(44.8		)
Interest expense	(1.7		)	(1.3		)
Income from continuing operations before provision for income taxes	$	14.8		$	15.4

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Legal Proceedings

3 Months Ended

Aug. 31, 2017

Legal Proceedings

Legal Proceedings

Note 12 — Legal Proceedings

We are not a party to any material pending legal proceeding (including any governmental or environmental proceeding) other than routine litigation incidental to our business except for the following:

DynCorp International LLC v. AAR Airlift Group, Inc.

On September 5, 2015, DynCorp International LLC (“DynCorp”) filed a complaint in the United States District Court for the Middle District of Florida, Orlando Division (the “District Court”), accusing AAR Airlift Group, Inc. (“AAR Airlift”), a wholly-owned subsidiary of AAR CORP., of misappropriation of DynCorp information, including trade secrets, and other related allegations.  DynCorp’s complaint, which sought damages in an unspecified amount and a preliminary injunction, alleged that AAR Airlift engaged in this conduct in connection with the submission of proposals in response to the solicitation issued by the U.S. Department of State (“DOS”) Bureau of International Narcotics and Law Enforcement Affairs, Office of Aviation (“INL/A”) in support of the Global Aviation Support Services program. The INL/A contract was subsequently awarded to AAR Airlift on September 1, 2016.

The District Court denied DynCorp’s preliminary injunction motion, and on October 19, 2015, DynCorp filed an amended complaint with the District Court.  On January 14, 2016, the District Court granted AAR Airlift’s motion to dismiss DynCorp’s amended complaint.  On February 2, 2016, DynCorp appealed the District Court’s order to the United States Court of Appeals for the Eleventh Circuit (the “Eleventh Circuit”).

On November 21, 2016, the Eleventh Circuit reversed in part the District Court’s dismissal of the amended complaint and remanded the case to the District Court for further proceedings.  The District Court set a discovery schedule that was to end on September 1, 2017 and a trial date of April 2, 2018.

On June 16, 2017, the District Court granted AAR Airlift’s motion to stay the legal proceeding against AAR Airlift.  The stay will remain in effect until the earlier of (a) November 1, 2017 or (b) the entry of a decision of the United Stated Court of Federal Claims (“COFC”), on DynCorp’s protest of the award of the INL/A contract to AAR Airlift. The District Court’s stay immediately halted all discovery and other activity in the DynCorp lawsuit. The COFC decision is expected on or before October 31, 2017.

AAR Airlift will continue to defend itself vigorously against DynCorp’s lawsuit, which it believes is entirely without merit.

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Acquisition of Premier Aviation

3 Months Ended

Aug. 31, 2017

Acquisition of Premier Aviation

Acquisition of Premier Aviation

Note 13 — Acquisition of Premier Aviation

On September 19, 2017, we acquired the outstanding shares of two MRO facilities in Quebec and Ontario, Canada owned by Premier Aviation for approximately $29.0 million.  The purchase price includes approximately $26.7 million paid at closing and deferred consideration of $2.3 million payable September 2018. This business will operate as part of our Aviation Services segment.

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Accounting for Stock-Based Compensation (Tables)

3 Months Ended

Aug. 31, 2017

Accounting for Stock-Based Compensation

Schedule of assumptions used in the Black-Scholes option pricing model to estimate the fair value of stock option grant

Risk-free interest rate	1.8	%
Expected volatility of common stock	31.7	%
Dividend yield	0.9	%
Expected option term in years	4.3

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Inventory (Tables)

3 Months Ended

Aug. 31, 2017

Inventory

Summary of inventories

	August 31,		May 31,
	2017		2017
Raw materials and parts	$	45.9	$	45.0
Work-in-process	29.3		25.8
Aircraft and engine parts, components and finished goods	379.8		393.1
Aircraft held for sale and related support parts	18.0		19.2
	$	473.0	$	483.1

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Supplemental Cash Flow Information (Tables)

3 Months Ended

Aug. 31, 2017

Supplemental Cash Flow Information

Schedule of supplemental information on cash flow

	Three Months Ended
	August 31,
	2017		2016
Interest paid	$	1.4	$	1.0
Income taxes paid	1.3		1.5
Income tax refunds received	—		1.0

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Financing Arrangements (Tables)

3 Months Ended

Aug. 31, 2017

Financing Arrangements

Summary of carrying amount of debt

	August 31,			May 31,
	2017			2017
Revolving Credit Facility expiring November 1, 2021 with interest payable monthly	$	165.0		$	131.0
Industrial revenue bond (secured by property, plant and equipment) due August 1, 2018 with interest payable monthly	25.0			25.0
Capital lease obligations	2.9			3.3
Total debt	192.9			159.3
Current maturities of debt	(2.0		)	(2.0		)
Debt issuance costs, net	(1.9		)	(2.0		)
Long-term debt	$	189.0		$	155.3

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Earnings per Share (Tables)

3 Months Ended

Aug. 31, 2017

Earnings Per Share

Schedule of reconciliation of computations of basic and diluted earnings per share information

	Three Months Ended August 31,
	2017			2016
Basic and Diluted EPS:
Income from continuing operations	$	10.6		$	9.9
Less income attributable to participating shares	(0.1		)	(0.1		)
Income from continuing operations attributable to common shareholders	10.5			9.8
Loss from discontinued operations attributable to common shareholders	—			(0.4		)
Net income attributable to common shareholders for earnings per share	$	10.5		$	9.4
Weighted average common shares outstanding—basic	34.0			33.9
Additional shares from assumed exercise of stock options	0.5			0.2
Weighted average common shares outstanding—diluted	34.5			34.1
Earnings per share — basic:
Earnings from continuing operations	$	0.31		$	0.29
Loss from discontinued operations	—			(0.01		)
Earnings per share — basic	$	0.31		$	0.28
Earnings per share — diluted:
Earnings from continuing operations	$	0.31		$	0.29
Loss from discontinued operations	—			(0.01		)
Earnings per share — diluted	$	0.31		$	0.28

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Accumulated Other Comprehensive Loss (Tables)

3 Months Ended

Aug. 31, 2017

Accumulated Other Comprehensive Loss

Schedule of changes in accumulated other comprehensive loss ("AOCL") by component

	Currency Translation Adjustments			Pension Plans			Total
Balance at June 1, 2017	$	(1.7	)	$	(38.2	)	$	(39.9	)
Other comprehensive income before reclassifications	0.6			—			0.6
Amounts reclassified from AOCL	—			0.3			0.3
Total other comprehensive income	0.6			0.3			0.9
Balance at August 31, 2017	$	(1.1	)	$	(37.9	)	$	(39.0	)
Balance at June 1, 2016	$	(1.1	)	$	(43.3	)	$	(44.4	)
Other comprehensive loss before reclassifications	(1.5		)	—			(1.5		)
Amounts reclassified from AOCL	—			0.3			0.3
Total other comprehensive income (loss)	(1.5		)	0.3			(1.2		)
Balance at August 31, 2016	$	(2.6	)	$	(43.0	)	$	(45.6	)

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Business Segment Information (Tables)

3 Months Ended

Aug. 31, 2017

Business Segment Information

Schedule of selected financial information for each reportable segment

	Three Months Ended August 31,
	2017		2016
Net sales:
Aviation Services	$	371.3	$	334.6
Expeditionary Services	67.9		70.2
	$	439.2	$	404.8

	Three Months Ended August 31,
	2017		2016
Gross profit:
Aviation Services	$	57.8	$	53.4
Expeditionary Services	6.7		8.1
	$	64.5	$	61.5

Schedule of reconciliation of segment gross profit to income (loss) from continuing operations before provision for income taxes

	Three Months Ended August 31,
	2017			2016
Segment gross profit	$	64.5		$	61.5
Selling, general and administrative	(48.0		)	(44.8		)
Interest expense	(1.7		)	(1.3		)
Income from continuing operations before provision for income taxes	$	14.8		$	15.4

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Basis of Presentation (Details) - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
New Accounting Pronouncements
Amount of recognized excess tax benefits as a reduction to income tax expense	$ 4.2	$ 5.5
Improvements to Employee Share-Based Payment Accounting
New Accounting Pronouncements
Amount of recognized excess tax benefits as a reduction to income tax expense	$ (1.2)

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Discontinued Operations (Details) - USD ($) $ in Millions	Aug. 31, 2017	May 31, 2017
Precision Systems Manufacturing | Discontinued Operations, Held-for-sale or Disposed of by Sale
Discontinued Operations
Liabilities of discontinued operations	$ 6.5	$ 6.9

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Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	May 31, 2017
Revenue Recognition
Recognized net favorable cumulative catch-up adjustments		$ 3.8
Sales from support services	$ 194.5	190.9
Gross profit on support services	64.5	61.5
KC10 logistics support services
Revenue Recognition
Sales from support services	11.7	38.6
Gross profit on support services	1.1	$ 2.8
KC10 Supply Program
Revenue Recognition
Unbilled accounts receivable related to KC10 program	$ 10.8		$ 14.5

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Accounting for Stock-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended		3 Months Ended
	Jul. 31, 2017	Jun. 30, 2017	Aug. 31, 2017	Aug. 31, 2016
Restricted stock
Stock options, additional disclosures
Compensation expense			$ 1.4	$ 1.3
Performance-based restricted stock
Stock options, additional disclosures
Granted (in shares)			98,750
Granted (in dollars per share)			$ 35.26
Time-based restricted stock
Stock options, additional disclosures
Granted (in shares)			24,425
Granted (in dollars per share)			$ 35.26
Time-based restricted stock | Board of Directors
Stock options, additional disclosures
Granted (in shares)		55,000
Granted (in dollars per share)		$ 34.95
Stock options
Stock options, additional disclosures
Granted (in shares)	453,450
Granted (in dollars per share)	$ 35.26
Weighted average fair value of stock options granted (in dollars per share)	$ 9.27
Total intrinsic value of stock options exercised			$ 5.0	0.3
Compensation expense			$ 1.1	$ 1.2
Assumptions used in the Black-Scholes option pricing models to estimate the fair value of each stock option grant
Risk-free interest rate			1.80%
Expected volatility of common stock			31.70%
Dividend yield			0.90%
Expected option term in years			4 years 3 months 18 days

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Inventory (Details) - USD ($) $ in Millions	Aug. 31, 2017	May 31, 2017
Inventory
Raw materials and parts	$ 45.9	$ 45.0
Work-in-process	29.3	25.8
Aircraft and engine parts, components and finished goods	379.8	393.1
Aircraft held for sale and related support parts	18.0	19.2
Total inventories	$ 473.0	$ 483.1

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Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Supplemental Cash Flow Information
Interest paid	$ 1.4	$ 1.0
Income taxes paid	$ 1.3	1.5
Income tax refunds received		$ 1.0

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Financing Arrangements (Details) - USD ($) $ in Millions	Aug. 31, 2017	May 31, 2017
Financing Arrangements
Total debt	$ 192.9	$ 159.3
Current maturities of debt	(2.0)	(2.0)
Debt issuance costs, net	(1.9)	(2.0)
Long-term debt	189.0	155.3
Capital lease obligations
Financing Arrangements
Total debt	2.9	3.3
Revolving Credit Facility expiring November 1, 2021 with interest payable monthly
Financing Arrangements
Total debt	165.0	131.0
Industrial revenue bond (secured by property, plant and equipment) due August 1, 2018 with interest payable monthly
Financing Arrangements
Total debt	25.0	$ 25.0
Variable rate and fixed rate debt | Significant other observable inputs (Level 2)
Financing Arrangements
Estimated fair value of long-term debt	$ 192.9

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Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Earnings Per Share
Effect to the participating securities as result of net loss	$ 0.0
Basic and Diluted EPS:
Income from continuing operations	10.6	$ 9.9
Less income attributable to participating shares	(0.1)	(0.1)
Income from continuing operations attributable to common shareholders	10.5	9.8
Loss from discontinued operations attributable to common shareholders		(0.4)
Net income attributable to common shareholders for earnings per share	$ 10.5	$ 9.4
Weighted Average Shares:
Weighted average common shares outstanding - basic	34,000,000	33,900,000
Additional shares from assumed exercise of stock options	500,000	200,000
Weighted average common shares outstanding - diluted	34,500,000	34,100,000
Earnings per share - basic:
Earnings from continuing operations	$ 0.31	$ 0.29
Loss from discontinued operations		(0.01)
Earnings per share - basic	0.31	0.28
Earnings per share - diluted:
Earnings from continuing operations	0.31	0.29
Loss from discontinued operations		(0.01)
Earnings per share - diluted	$ 0.31	$ 0.28
Antidilutive stock options excluded from the computation of diluted earnings per share (in shares)		2,041,000

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Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Accumulated Other Comprehensive Loss
Balance at beginning of the period	$ (39.9)	$ (44.4)
Other comprehensive income (loss) before reclassifications from AOCL	0.6	(1.5)
Amounts reclassified from AOCL	0.3	0.3
Other comprehensive income (loss), net of tax	0.9	(1.2)
Balance at end of the period	(39.0)	(45.6)
Currency Translation Adjustments
Accumulated Other Comprehensive Loss
Balance at beginning of the period	(1.7)	(1.1)
Other comprehensive income (loss) before reclassifications from AOCL	0.6	(1.5)
Other comprehensive income (loss), net of tax	0.6	(1.5)
Balance at end of the period	(1.1)	(2.6)
Pensions Plans
Accumulated Other Comprehensive Loss
Balance at beginning of the period	(38.2)	(43.3)
Amounts reclassified from AOCL	0.3	0.3
Other comprehensive income (loss), net of tax	0.3	0.3
Balance at end of the period	$ (37.9)	$ (43.0)

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Sale of Product Line (Details) - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Discontinued Operations
Amount received from sale of assets	$ 1.3	$ 3.0
Sonoco | Long-term manufacturing agreement to supply temperature-controlled containers
Discontinued Operations
Term of long-term manufacturing agreement	3 years
Temperature-controlled container product line | Disposed of by sale
Discontinued Operations
Sale consideration	$ 5.0
Amount received from sale of assets	3.0
Non-contingent deferred consideration amount in the sale consideration	$ 2.0
Period over which non-contingent deferred consideration is due	2 years
Gain on sale of assets	$ 2.6

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Business Segment Information (Details) $ in Millions	3 Months Ended
	Aug. 31, 2017 USD ($) segment	Aug. 31, 2016 USD ($)
Business Segment Information
Number of business segments | segment	2
Net sales	$ 439.2	$ 404.8
Gross profit	64.5	61.5
Aviation Services
Business Segment Information
Net sales	371.3	334.6
Gross profit	57.8	53.4
Expeditionary Services
Business Segment Information
Net sales	67.9	70.2
Gross profit	$ 6.7	$ 8.1

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Business Segment Information - Reconcile of Gross Profit to Income (Details) - USD ($) $ in Millions	3 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Reconciliation of segment gross profit to consolidated income before provision for income taxes
Segment gross profit	$ 64.5	$ 61.5
Selling, general and administrative	(48.0)	(44.8)
Interest expense	(1.7)	(1.3)
Income from continuing operations before provision for income taxes	$ 14.8	$ 15.4

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Acquisition of Premier Aviation (Details) - MRO facilities acquired in Quebec and Ontario, Canada owned by Premier Aviation $ in Millions	Sep. 19, 2017 USD ($) facility
Acquisition of Premier Aviation
Number of facilities acquired | facility	2
Total consideration	$ 29.0
Purchase price	26.7
Deferred consideration payable	$ 2.3