Staff Sgt. Daniel Hermann (left), a 19th Component Maintenance Squadron aerospace propulsion craftsman, and Tech. Sgt. Jeremy Leuch, 19th Component Maintenance Squadron test cell NCO-in-charge, inspect an engine of a C-130 for fluid leaks during a performance check May 25, 2011, at Little Rock Air Force Base, Ark. A C-130 engine performance check is a two-day process before the engine is sent back to the engine shop for final inspection. (U.S. Air Force photo/Airman 1st Class Rusty Frank)