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Staff Sgt. Shane Semred, a 162nd Maintenance Group crew chief, Morris Air National Guard Base, Ariz., performs the Emergency Power Unit continuity check prior to the aircraft taxiing. The EPU provides electrical and hydraulic power should there be a failure of the engine, the main engine generator, or hydraulics. (U.S. Air National Guard photo by Tech. Sgt. George Keck)
NIKON Z 6
NIKKOR Z 70-200mm f/2.8 VR S
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