302nd MXS reservists conduct pressurization and auxiliary power unit checks
Tech. Sgt Christopher Orr, 302nd Maintenance Squadron aircraft technician, runs a check 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)