Tech. Sgt. Paul Carissimo, 932nd Maintenance Squadron crew chief, poses is front of a C-40C May 25, 2020, Scott Air Force Base, Illinois. Crew chiefs have been working various shifts during COVID-19 to maintain the four C-40C aircrafts flown by the 932nd AW in support of essential training and operations. (U.S. Air Force photo by Christopher Parr)