U.S. Air Force Staff Sgt. Daniel Murphy, 77th Aircraft Maintenance Unit weapons load crew chief out of Shaw Air Force Base, S.C., colds the gun system of an F-16 Fighting Falcon during RED FLAG-Alaska 12-2  June 19, 2012, Eielson Air Force Base, Alaska. Colding the gun system is the process of turning off the aircraft weapons system to safely perform maintenance. (U.S. Air Force photo/Staff Sgt. Jim Araos)
Staff Sgt. Jim Araos
Taken on 19 June 2012
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