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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 RbQjgB5PX4WnDvfHj2LC4PsDJbnC7PjB2WEySMI/Z49LRT+EGeWsj3S21hFDirUM
 mRBe+PYeKRnhnKEGX3ZtDQ==

<SEC-DOCUMENT>0000001750-03-000020.txt : 20030709
<SEC-HEADER>0000001750-03-000020.hdr.sgml : 20030709
<ACCEPTANCE-DATETIME>20030709123524
ACCESSION NUMBER:		0000001750-03-000020
CONFORMED SUBMISSION TYPE:	5
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030531
FILED AS OF DATE:		20030709

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:			EICHNER IRA A
		CENTRAL INDEX KEY:			0001027734
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0531

	FILING VALUES:
		FORM TYPE:		5
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-06263
		FILM NUMBER:		03779596

	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>
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<TYPE>5
<SEQUENCE>1
<FILENAME>c0001027734d20030709f5f.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<ownershipDocument><schemaVersion>X0101</schemaVersion>    <documentType>5</documentType><periodOfReport>2003-05-31</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><form3HoldingsReported>0</form3HoldingsReported><form4TransactionsReported>0</form4TransactionsReported><issuer><issuerCik>0000001750</issuerCik><issuerName>AAR CORP</issuerName>        <issuerTradingSymbol>AIR</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001027734</rptOwnerCik><rptOwnerName>EICHNER IRA A</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>  </rptOwnerStreet1><rptOwnerStreet2>  </rptOwnerStreet2><rptOwnerCity>  </rptOwnerCity><rptOwnerState>  </rptOwnerState><rptOwnerZipCode>  </rptOwnerZipCode></reportingOwnerAddress><reportingOwnerRelationship><isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle></officerTitle><otherText></otherText></reportingOwnerRelationship></reportingOwner><derivativeS
ecurity><securityTitle><value>Phantom Stock Units</value></securityTitle><conversionOrExercisePrice><value>11.43</value></conversionOrExercisePrice><transactionDate><value>2002-06-01</value></transactionDate><transactionCoding><transactionFormType>5</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>626</value></transactionShares><transactionValue><value>11.43</value></transactionValue><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2002-06-01</value></exerciseDate><expirationDate><value>2006-10-11</value><footnoteId id="F1"/></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>626</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>626</value></sharesOwnedFollo
wingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeSecurity><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</signatureName><signatureDate>2003-07-09</signatureDate></ownerSignature></ownershipDocument>

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