AWACS Maintenance
U.S. Air Force Senior Airman Joshua Escobar, 380th Aircraft Maintenance Squadron, plugs an external power unit into an E-3 Sentry in order to perform flight systems maintenance at an undisclosed location in Southwest Asia, Nov. 23, 2010. The E-3 is an Airborne Warning and Control System (AWACS) that provides all-weather surveillance, command, control and communications. The maintainers are deployed from Tinker Air Force Base, Okla. (U.S. Air Force Photo/Staff Sgt. Eric Harris) (RELEASED)