Maintainers of the night
Staff Sgt. Richard Baker, 22nd Aircraft Maintenance Squadron jet troop, replaces a fuel filter on the engine of a KC-135 Stratotanker, March 31, 2014, at McConnell Air Force Base, Kan. Replacing fuel filters is one of the many steps in an inspection, where the entire aircraft is examined for structural integrity. (U.S. Air Force photo/Airman 1st Class Victor J. Caputo)