Staff Sgt. John Skipper, 57th Aircraft Maintenance Squadron Viper Aircraft Maintanence Unit aerospace propulsion craftsman, works on an engine generator at Detachment 13, 372nd Training Squadron on Nellis Air Force Base, Nev., Sept. 10, 2015. The objective for the specialized training was to teach Skipper how to take an engine generator a part and place it back together. ( Air Force photo by Airman 1st Class Rachel Loftis)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
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Keywords: detachment