U.S. Air Force Staff Sgt. Nina Rack, 633rd Logistics Readiness Squadron vehicle maintenance supervisor, and U.S. Air Force Airman 1st Class Taylor Elcook, 633rd LRS vehicle maintenance apprentice, replace the engine wiring harness in a security forces vehicle at Langley Air Force Base, Va., Aug. 2, 2016. Vehicle maintenance repairs government vehicles in order to keep them fully operational and safe. (U.S. Air Force photo by Airman 1st Class Tristan Biese)