Airman 1st Class Lindsey Nicolson, a 362nd Training Squadron crew chief apprentice course student, practices safety wiring at Sheppard Air Force Base, Texas, on July 28, 2020. Crew chiefs use safety wiring to ensure bolts are secured on the aircraft. Nicolson is in block five of nine and is scheduled to graduate Sept. 23, 2020. (U.S. Air Force photo by Alan R. Quevy)
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