Maintenance inspection
WESTERN EUROPE (May 10, 2011) -- Tech. Sgt. Ben Smith, 171st Air Refueling Wing, Pittsburgh, performs a function check on the lights of a KC-135 Stratotanker from the 91st Air Refueling Squadron, MacDill Air Force Base, Fla. Currently assigned to the 313th Air Expeditionary Wing, he is a member of the maintenance group responsible for maintaining the wing's aircraft fleet. The wing supports Operation Unified Protector, a NATO-led mission in Libya to protect civilians and civilian-populated areas under threat of attack. The 313th AEW provides aerial refueling to U.S. and coalition aircraft with KC-135 Stratotankers and KC-10 Extenders. (U.S. Air Force photo by Tech. Sgt. Stacy Gault/Released)