AAR is a global aerospace and defense aftermarket solutions company with operations in over 20 countries. Headquartered in the Chicago area, AAR supports commercial and government customers through two operating segments: Aviation Services and Expeditionary Services. AAR’s Aviation Services include Parts Supply; OEM Solutions; Integrated Solutions; and Maintenance, Repair and Overhaul (MRO) Services. AAR’s Expeditionary Services include Mobility Systems operations. More info at: www.aarcorp.com.