Maintenance key to sustaining combat airpower

Staff Sgt. Donterrio Erby and Senior Airman Jaid Downing, both assigned to the 455th Expeditionary Maintenance Squadron, perform a 400-hour engine inspection on an F-16 Fighting Falcon at Bagram Airfield, Afghanistan, June 9, 2015. The 455th EAMXS ensure Fighting Falcons on Bagram are prepared for flight and return them to a mission-ready state once they land. (U.S. Air Force photo/Tech. Sgt. Joseph Swafford)