Tech. Sgt. Matthew Beck, of the 455th Expeditionary Aircraft Maintenance Squadron, gives a thumbs-up from the wing of a C-130 Hercules after running an engine test at Bagram Airfield, Afghanistan, Jan. 12, 2016. The 455th EAMXS ensures aircraft are prepared for flight and return them to a mission-ready state once they land. (U.S. Air Force photo/Tech. Sgt. Robert Cloys)