U.S. Air Force Staff Sgt. James Srackangast, 145th Aircraft Maintenance Squadron (AMXS), gives instructions to other crew chiefs in training prior to towing a C-17 Globemaster III aircraft at the North Carolina Air National Guard Base, Charlotte Douglas International Airport, July 24, 2018. Since the aircraft conversion in April, the 145th AMXS is working to train maintenance personnel with a goal of them being fully qualified.