About AAR WOOD DALE, Ill., Jan. 28, 2026 /PRNewswire/ -- AAR CORP. (NYSE: AIR), a leading provider of aviation services to commercial and government operators, MROs, and OEMs, has substantially completed the expansion of its Airframe MRO facility in Oklahoma City. Driven by an increased demand for AAR's MRO services, the 80,000+ square foot facility expansion includes three maintenance bays capable of accommodating all 737 variants. The Company will soon induct additional Alaska Airlines aircraft for servic ...