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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 PiOh8s/4v/BJS8pmxkmCTS3xvy43DawqAoSOzuJe6PjyTGlv+H/lUXj0YWnqDtEi
 RzGmeGjBnf69JUFg1BiPzA==

<SEC-DOCUMENT>0000001750-03-000084.txt : 20031202
<SEC-HEADER>0000001750-03-000084.hdr.sgml : 20031202
<ACCEPTANCE-DATETIME>20031202122157
ACCESSION NUMBER:		0000001750-03-000084
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031201
FILED AS OF DATE:		20031202

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AAR CORP
		CENTRAL INDEX KEY:			0000001750
		STANDARD INDUSTRIAL CLASSIFICATION:	AIRCRAFT & PARTS [3720]
		IRS NUMBER:				362334820
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0531

	BUSINESS ADDRESS:	
		STREET 1:		1100 N WOOD DALE RD
		CITY:			WOOD DALE
		STATE:			IL
		ZIP:			60191
		BUSINESS PHONE:		6302272000

	MAIL ADDRESS:	
		STREET 1:		1100 N WOOD DALE RD
		CITY:			WOOD DALE
		STATE:			IL
		ZIP:			60191

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ALLEN AIRCRAFT RADIO INC
		DATE OF NAME CHANGE:	19700204

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GOODWIN JAMES E
		CENTRAL INDEX KEY:			0001017982

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-06263
		FILM NUMBER:		031031874

	BUSINESS ADDRESS:	
		STREET 1:		P O BOX 66100 WHQLD
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60666
		BUSINESS PHONE:		8477004000

	MAIL ADDRESS:	
		STREET 1:		1100 N WOOD DALE RD
		CITY:			WOOD DALE
		STATE:			IL
		ZIP:			60191
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>c0001017982d20031202f4f.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-12-01</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000001750</issuerCik><issuerName>AAR CORP</issuerName>        <issuerTradingSymbol>AIR</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001017982</rptOwnerCik><rptOwnerName>GOODWIN JAMES E</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>1100 N. WOOD DALE ROAD</rptOwnerStreet1><rptOwnerStreet2></rptOwnerStreet2><rptOwnerCity>WOOD DALE</rptOwnerCity><rptOwnerState>IL</rptOwnerState><rptOwnerZipCode>60191-</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle></officerTitle><otherText></otherText></reportingOwnerRelationship></reportingOwner><nonDerivativeTable></nonDerivat
iveTable><derivativeTable><derivativeTransaction><securityTitle><value>Phantom Stock Units</value></securityTitle><conversionOrExercisePrice><value>10.71</value></conversionOrExercisePrice><transactionDate><value>2003-12-01</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>817</value></transactionShares><transactionPricePerShare><value>10.71</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2003-12-01</value></exerciseDate><expirationDate><value>2018-09-30</value><footnoteId id="F1"/></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>817</value></underlyingSecurityShares></underlyingSe
curity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>817</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">Phantom stock units are payable in stock on a 1-for-1 basis or cash at the grantee's election upon retirement/termination as a director.</footnote></footnotes><ownerSignature><signatureName>Jo-Ellen Kiddie, Power of Attorney</signatureName><signatureDate>2003-12-02</signatureDate></ownerSignature></ownershipDocument>

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