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Staff Sgt. Collette Portzer, 317th Aircraft Maintenance Squadron aerospace propulsion technician, works on one of four engines on a C-130J Super Hercules at Reno-Tahoe International Airport, Nev., Aug. 15, 2019. Portzer changed the oil and inspected the engine to meet future mission requirements. The aircraft was in Reno in part of an eight-day training exercise conducted by the 39th Airlift Squadron to prepare for deployed operations. (U.S. Air Force photo by Airman 1st Class River Bruce)
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