U.S. Air Force Staff Sgt. Jaymes Russell, 57th Aircraft Maintenance Squadron Viper Aircraft Maintenance Unit crew chief, adjusts a torque wrench prior to tightening a new fuel tank onto an F-16 Fighting Falcon on the flightline Feb. 10, 2014, at Nellis Air Force Base, Nev. A torque wrench is used to control the tightness of a bolt to ensure the ideal pressure is being used. (U.S. Air Force photo by Airman 1st Class Timothy Young)
Airman 1st Class Timothy Young
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