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Staff Sgt. Patrick Leach, 100th Maintenance Squadron aircraft fuels systems craftsman, uses the Pressurized Leak Detection Cup Feb. 14, 2020, at RAF Mildenhall, United Kingdom. The device, he designed, has reduced leak-detection time in fuel tanks by 75% and can potentially save the base more than $1 million annually. (U.S. Air Force photo by Airman 1st Class Joseph Barron)
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