Senior Airman David Rippberger, aerospace ground equipment journeyman and deployed member of the 36th Maintenance Squadron, cleans brake pads on a towable air compressor 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)
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