Aircraft Electrical and Environmental Systems journeyman Senior Airman Corey Wiggins, 437th Aircraft Maintenance Squadron, Joint Base Charleston, S.C., adjusts a temperature adjustment knob on the C-5 Air Conditioning and Pressurization Systems Trainer Feb. 20, 2019, at the 373rd Training Squadron, Detachment 3, on Dover Air Force Base, Del. The AC & PST visually allowed Wiggins and other students to see what occurs when switches are moved on the flight engineer’s control panel. On the right, Staff Sgt. Jose Cardona, 373rd TRS, Det 3, C-5M Electrical and Environmental Systems instructor, monitored knob movement initiated by Wiggins on the Interactive Multimedia Instruction tablet.(U.S. Air Force photo by Roland Balik)
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