AAR Corp. delivers a wide array of products and services to the global commercial aviation, government, and defense sectors. Its Aviation Services division focuses on comprehensive aftermarket support, encompassing inventory management, distribution, and extensive maintenance, repair, and overhaul (MRO) capabilities, alongside specialized engineering services. This segment is also involved in the sale and leasing of new, reconditioned, and repaired aircraft engine and airframe components. It manages tailored inventory and repair programs, processes warranty claims, and provides outsourcing solutions for these critical parts. Furthermore, it implements performance-based supply chain logistics programs specifically designed for the U.S. Department of Defense and international governmental bodies. A full suite of airframe services is offered, including inspection, maintenance, repair, overhaul, painting, line maintenance, modifications, structural repairs, avionics installation, and both exterior and interior refurbishment, complemented by engineering and support. The company also performs repair and overhaul on vital components such as landing gears, wheels, and brakes. The Expeditionary Services division is dedicated to facilitating the movement of equipment and personnel for the U.S. and international governments, as well as non-governmental organizations (NGOs). Its capabilities extend to the design, manufacturing, and repair of various transportation pallets, containers, and shelters. This segment also provides engineering, design, and system integration expertise for sophisticated command and control systems. AAR's diverse clientele includes both domestic and international passenger and cargo airlines, regional and commuter carriers, business and general aviation operators, original equipment manufacturers (OEMs), aircraft leasing firms, other aftermarket aviation support enterprises, and military customers globally. Its marketing and sales efforts are primarily conducted through its dedicated employees and a network of international sales representatives. Established in 1951, AAR Corp. maintains its corporate headquarters in Wood Dale, Illinois.