Airmen assigned to the 911th Aircraft Maintenance Squadron read a technical order before servicing the liquid oxygen on a C-17 Globemaster III at the Pittsburgh International Airport Air Reserve Station, Pennsylvania, March 1, 2021. Technical orders give Airmen instructions to ensure they properly and safely conduct maintenance tasks.

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Photo credit: © Operation 2021 / Alamy / Afripics
License: Licensed
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Keywords: 4thaf, afrc, airmanmagazine, dma, dod, usaf