Tech. Sgt. Shelly Pavcik, 911th Maintenance Squadron aircraft structural technician, uses a rivet gun to fasten pieces of metal while building a supply box at the Pittsburgh International Airport Air Reserve Station, Pennsylvania, Jan. 21, 2021. Structural maintenance specialists fabricate metal parts for various aircraft and vehicle repairs as well as on-base construction projects.

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Photo credit: © Operation 2021 / Alamy / Afripics
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