Aar Corp (AIR) SEC Filing 10-K Annual report for the fiscal year ending Monday, May 31, 2010

Exhibit 99.1

NEWS

For immediate release

AAR REPORTS FOURTH QUARTER AND FISCAL YEAR 2010 RESULTS

·            Fourth quarter sales of $372 million and diluted earnings per share of $0.29

·            Fourth quarter cash flow from operations of $59 million; fiscal year 2010 cash flow from operations of $153 million

·            Acquisition of Aviation Worldwide Services (AWS) closed; integration efforts on track

WOOD DALE, ILLINOIS (July 13, 2010) — AAR (NYSE: AIR) today reported fiscal year 2010 fourth quarter consolidated sales of $372.3 million and net income attributable to AAR of $11.2 million, or $0.29 diluted earnings per share. For the fourth quarter of last fiscal year, the Company reported sales of $371.7 million and net income attributable to AAR of $14.2 million, or $0.36 diluted earnings per share.

Consolidated gross profit margin was 17.9% for the fourth quarter compared to 16.4% last year.  Selling, general and administrative costs increased $7.2 million, to $42.8 million.  The increase was primarily attributable to the acquisition of AWS, including $1.1 million of acquisition related expenses.  During the fourth quarter of 2010, the Company generated $59 million of cash flow from operations.

In the fourth quarter of fiscal year 2010, the Company formed the Government and Defense Services segment.  This new segment includes the results of AWS, Defense Systems and Logistics (previously reported in the Aviation Supply Chain segment) and Integrated Technologies (formerly known as AAR Brown International and previously reported in the Structures and Systems segment).  Prior year information has been revised to conform to the new segment presentation.

One AAR Place · 1100 N. Wood Dale Road · Wood Dale, Illinois 60191 USA · 1-630-227-2000 Fax 1-630-227-2101