Technical Sgt. James Erickson, an avionics integrated technician assigned to the 452nd Maintenance Squadron, March Air Reserve Base, Calif., visually inspects a circuit card of a C-17 Globemaster III cargo aircraft Head-Up Display (HUD). Avionics technicians install, maintain and repair electronic and electrical systems on all types of aircraft and they also maintain a high degree of readiness to deploy worldwide to support wartime and contingency operations and operations other than war in support of national interests and objectives. (U.S. Air Force photo by Val Gempis)