WOOD DALE, ILLINOIS (June 23, 2004) - AAR (NYSE: AIR) today announced that it will release financial results for its fourth quarter and Fiscal Year 2004 ended May 31, 2004 before the market opens on Tuesday, June 29.

At 10:30 a.m. CDT, AAR will hold a conference call to discuss the results. The conference call can be accessed via dial-in (1-719-457-2641; conference code 779599). A replay of the call will be available (1-719-457-0820; conference code 779599) from approximately 1 p.m. CDT on June 29 until midnight on Monday, July 5, 2004.

AAR (NYSE: AIR) is the leading provider of aftermarket support to the worldwide aviation/aerospace industry. Products and services include customized inventory management and logistics programs, encompassing supply, repair and manufacture of spare parts and systems. Headquartered in Wood Dale, Illinois, AAR serves commercial and government aircraft fleet operators and independent service customers throughout the world. Further information can be found at www.aarcorp.com.