U.S. Air Force Staff Sgt. Kevin Ludwig, 7th Component Maintenance Squadron, inspects the front of a B-1B Lancer engine at Dyess Air Force Base, Texas, March 30, 2017. After a test run inside the engine test cell, the bell mouth which helps funnel air into the engine, is pulled away so that the turbine fan blades and other components can be better inspected. (U.S. Air Force Senior Airman Alexander Guerrero)