Engine Check
Staff Sgt. James Hendricks, a 1st Special Operations Component Maintenance Squadron aerospace propulsion mechanic, unhooks a C-130 engine from a hoist after performing a run up test Sept. 9, Hurlburt Field, Fla. After major engine repairs the engine must be fully tested before it?s installed on an aircraft and put into operational use. The tests ensure all aspects of the engine are working correctly.(U.S. Air Force photo/ Senior Airman Julianne Showalter)