U.S. Air Force Airman 1st Class Taylor Elcook, 633rd Logistics Readiness Squadron vehicle maintenance apprentice, and U.S. Air Force Staff Sgt. Nina Rack, 633rd LRS vehicle maintenance supervisor, replace the engine wiring harness in a security forces vehicle at Langley Air Force Base, Va., Aug. 2, 2016. Vehicle maintenance does many things to keep the base running smoothly by performing small routine vehicle checks to major fixes like replacing the engine wiring harness. (U.S. Air Force photo by Airman 1st Class Tristan Biese)