Airman 1st Class Daisy Alvarez, 374th Logistics Readiness Squadron fuels laboratory technician, center left, shows a fuel test sample with water contamination to members of the Japan Air Self Defense Force, 3rd Depot, during a base facilities tour Dec. 15, 2021, at Yokota Air Base, Japan. Airmen are vigilant about fuel contaminants, such as excess water, which is a type of fuel contamination that can lead to engine damage, ranging from corrosion in the fuel cells and fuel system components, freeze lines, clog filters, cause failure of instrumentation, and more. (U.S. Air Force photo by Senior Airman Hannah Bean)
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