31st Civil Engineer Squadron
Master Sgt. Courtenay Sartain, 31st Civil Engineer Squadron electrical shop NCO in charge, changes a street lamp dressed as Santa Dec. 20, 2012 at Aviano Air Base, Italy. The electrical shop is responsible for maintaining 4,800 street lights in addition to installing, servicing, repairing and modifying electrical equipment and systems on base to include industrial electronic circuits and equipment. (U.S. Air Force photo/Staff Sgt. Justin Weaver)