U.S. Air Force Tech. Sgt. Carlo Patalinghug lowers the canopy on an F-16 Fighting Falcon aircraft before running up the engine to test a hydraulic leak repair on Bagram Airfield, Afghanistan, Nov. 30, 2015. Patalinghug is a crew chief assigned to the 455th Expeditionary Aircraft Maintenance Squadron, deployed from Hill Air Force Base, Utah. The squadron provides combat-ready aircraft to the air component commander in support of coalition forces throughout Afghanistan. U.S. Air Force photo by Tech. Sgt. Robert Cloys