The Pressurized Leak Detection Cup sits on a table Feb. 14, 2020, at RAF Mildenhall, United Kingdom. The device, designed by Staff Sgt. Patrick Leach, 100th Maintenance Squadron aircraft fuels systems craftsman, reduces the time needed to detect leaks within the fuel tanks of KC-135 Stratotankers. (U.S. Air Force photo by Airman 1st Class Joseph Barron)