COBHAM AVIATION SERVICES UK SELECTS AAR FOR COMPONENT REPAIR MANAGEMENT

WOOD DALE, ILLINOIS (February 04, 2010) — AAR (NYSE: AIR) announced today that it has been selected by Cobham Aviation Services UK to provide repair management and overhaul services in support of Cobham’s maintenance facility in Bournemouth, England. The program will be managed by AAR’s Defense Systems & Logistics operating unit.

AAR will provide a single point of contact for the repair of components that Cobham previously serviced internally or outsourced to multiple vendors. The program will focus primarily on Cobham’s Falcon 20, Dornier 228 and King Air aircraft. AAR’s repair management services will enable Cobham to streamline its supply chain and increase the efficiency of its maintenance operations.

“We are excited to work with Cobham to provide them with an efficient, cost-effective component repair program in support of their maintenance activities,” said David N. Perri, vice president and general manager of AAR Defense Systems & Logistics. “With our experience managing sophisticated supply chains and our history of solid execution, we are confident that this is the first step towards a long and mutually beneficial relationship between AAR and Cobham.”

AAR has extensive experience with supply chain and component repair management for commercial airline and government fleets, including the UK Ministry of Defence’s fleet of E3-D Sentry aircraft based at the RAF’s base in Waddington and the United States Air Force’s E-8 Joint Surveillance Target Attack Radar System (JSTARS). In addition, AAR was recently selected to provide supply chain services and logistics support as a member of the Northrop Grumman team on the KC-10 Extender Contractor Logistics Support (CLS) program.

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 government/defense customers through three operating segments: Aviation Supply Chain; Maintenance, Repair and Overhaul; and Structures and Systems. More information can be found atwww.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, 2009 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.