U.S. Air Force Staff Sgt. Lenny Buscemi, 94th Aircraft Maintenance Unit dedicated crew chief, runs an operations check before takeoff at Nellis Air Force Base, Nevada, July 18, 2019. Due to the simulated deployed environment of Red Flag 19-3, crew chiefs have to adapt to the different conditions in order to maintain a combat ready aircraft. (U.S. Air Force photo by Senior Airman Tristan Biese)