Senior Airman Antonio Simon, aerospace ground equipment journeyman and deployed member of the 36th Maintenance Squadron, installs an improvised rubber seal to a towable jet fuel container Aug. 12, 2015, at Andersen Air Force Base, Guam. The maintainers regularly test brake parts for corrosion to ensure safety. (U.S. Air Force photo by Staff Sgt. Alexander W. Riedel/Released)