302nd MXS reservists conduct pressurization and auxiliary power unit checks
Aircraft electricians and crew chiefs with the 302nd Maintenance Squadron run a pressurization test and checks on the auxiliary power unit of a C-130 Hercules during a unit training assembly, June 6, 2020, at Peterson Air Force Base, Colorado. Every six months, reservists have to re-certify on specific skills in order to maintain mission readiness. (U.S. Air Force photo by Tech. Sgt. Tiffany Lundberg)

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Photo by: Tech. Sgt. Tiffany Lundberg |  VIRIN: 200606-F-EX835-1005.JPG