U.S. Air Force Tech. Sgt. Carlo Patalinghug examines an F-16 Fighting Falcon aircraft to isolate and repair a hydraulic leak on Bagram Airfield, Afghanistan, Nov. 30, 2015. Patalinghug is a crew chief assigned to the 455th Expeditionary Aircraft Maintenance Squadron. U.S. Air Force photo by Tech. Sgt. Robert Cloys