WOOD DALE, ILLINOIS, (April 21, 2009) — AAR (NYSE: AIR) announced today that it has signed a seven-year agreement with Czech Airlines to provide rotable component repair services on a flight-hour basis for the airline’s Boeing 737 Classic aircraft. Czech Airlines is the flagship airline carrier of the Czech Republic and provides air connections from Prague to most European capitals, major North American destinations, the Near East and North Africa. The airline’s fleet currently includes nine 737-400 and ten 737-500 models.

The repair program will be managed by AAR Aircraft Component Services — Amsterdam, with additional support provided, as needed, by AAR Aircraft Component Services — New York.

“We are excited to work with Czech Airlines and provide them with a cost-effective program to help them manage their rotable component repairs,” said James Clark, Group Vice President for AAR’s Aviation Supply Chain Group. “This flight-hour agreement enables our customer to accurately forecast their component repair costs and operate with a more predictable cost structure.”

AAR Aircraft Component Services — Amsterdam performs a wide range of component repair, overhaul and exchange services and offers scrap replacement options, all of which are designed to improve efficiency while reducing cost. AAR has been serving commercial and government customers across Europe from its Amsterdam facility since 1965 and is equipped to repair, overhaul, and maintain components for a wide variety of components on commercial and government aircraft.

About AAR
AAR is a leading provider of products and value-added services to the worldwide aerospace and defense industry. With facilities and sales locations around the world, AAR uses its close-to-the-customer business model to serve aviation and defense customers through four operating segments: Aviation Supply Chain; Maintenance, Repair and Overhaul; Structures and Systems and Aircraft Sales and Leasing. More information can be found at www.aarcorp.com.

This press release contains certain statements relating to future results, which are 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 Company management, as well as assumptions and estimates based on information currently available to the Company, and are subject to certain risks and uncertainties that could cause actual results to differ materially from historical results or those anticipated, including those factors discussed under Item 1A, entitled “Risk Factors”, included in the Company’s May 31, 2008 Form 10-K. Should one or more of these risks or uncertainties materialize adversely, or should underlying assumptions or estimates prove incorrect, actual results may vary materially from those described. These events and uncertainties are difficult or impossible to predict accurately and many are beyond the Company’s control. The Company assumes 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. For additional information, see the comments included in AAR’s filings with the Securities and Exchange Commission.