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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0000001750-03-000077.txt : 20031118
<SEC-HEADER>0000001750-03-000077.hdr.sgml : 20031118
<ACCEPTANCE-DATETIME>20031118163725
ACCESSION NUMBER:		0000001750-03-000077
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030721
FILED AS OF DATE:		20031118

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:			STORCH DAVID P
		CENTRAL INDEX KEY:			0001027741
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0531

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-06263
		FILM NUMBER:		031010851

	BUSINESS ADDRESS:	
		STREET 1:		C/O AAR CORP
		STREET 2:		1111 NICHOLAS BLVD
		CITY:			ELK GROVE VILLAGE
		STATE:			IL
		ZIP:			60007
		BUSINESS PHONE:		8474393939

	MAIL ADDRESS:	
		STREET 1:		C/O AAR CORP
		STREET 2:		1111 NICHOLAS BLVD
		CITY:			1111 NICHOLAS BLVD
		STATE:			IL
		ZIP:			60007
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>c0001027741d20031118f4f.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-07-21</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000001750</issuerCik><issuerName>AAR CORP</issuerName>        <issuerTradingSymbol>AIR</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001027741</rptOwnerCik><rptOwnerName>STORCH DAVID P</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>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>President, CEO &amp; Director</officerTitle><otherText></otherText></reportingOwnerRelationship></reportingOwner><non
DerivativeTable><nonDerivativeTransaction><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-07-21</value></transactionDate><deemedExecutionDate><value>2003-11-17</value></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved><footnoteId id="F1"/></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>50000</value></transactionShares><transactionPricePerShare><value>0</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>340285</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></
nonDerivativeTransaction><nonDerivativeHolding><securityTitle><value>Common Stock</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>18810</value><footnoteId id="F2"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>by wife</value></natureOfOwnership></ownershipNature></nonDerivativeHolding><nonDerivativeHolding><securityTitle><value>Common Stock</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>6876.173</value><footnoteId id="F3"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>by wife for minor children</value></natureOfOwnership></ownershipNature></nonDerivativeHolding></nonDerivativeTable><derivativeTable><derivativeTransaction><securityTitle><value>Stock Option</value></securityTitle><co
nversionOrExercisePrice><value>6.96</value></conversionOrExercisePrice><transactionDate><value>2003-07-21</value></transactionDate><deemedExecutionDate><value>2003-11-17</value></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved><footnoteId id="F4"/></transactionCoding><transactionAmounts><transactionShares><value>356393</value></transactionShares><transactionPricePerShare><value>0</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2004-07-21</value><footnoteId id="F5"/></exerciseDate><expirationDate><value>2013-07-21</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>356393</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value
>356393</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">Award of stock pursuant to Restricted Stock Agreement in transaction exempt under Rule 16b-3.</footnote><footnote id="F2">I disclaim any beneficial interest in these shares.</footnote><footnote id="F3">Reduced to reflect fact that one child is no longer a minor residing in my household.  I disclaim any beneficial interest in these shares.</footnote><footnote id="F4">Grantee may elect to pay the exercise price of the option or any tax withholding obligation in connection therewith by directing the Company to withhold a portion of the shares otherwise distributable to the grantee upon exercise or by transferring to the Company previously acquired shares, valued at their fair market value on such taxable date.</
footnote><footnote id="F5">The option vests in five equal installments beginning July 21, 2004.</footnote></footnotes><ownerSignature><signatureName>Jo-Ellen Kiddie, Power of Attorney</signatureName><signatureDate>2003-11-18</signatureDate></ownerSignature></ownershipDocument>

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