U.S. Air Force Staff Sgt. Vanny Vang, 20th Logistics Readiness Squadron vehicle and equipment maintainer, inspects fire truck engine parts during an installation, Shaw Air Force Base, S.C., Feb. 4, 2014. The maintainers removed a fire truck engine in order to replace the coolant and afterwards reinstalled the engine into the truck.(U.S. Air Force photo by Senior Airman Ashley L. Gardner/Released)