A1C Nicholas Casillas, 96th Aircraft Maintenance Unit crew chief, detaches a bleed air hose from a B-52H Stratofortress during Global Thunder 21 at Barksdale Air Force Base, La., Oct. 22, 2020. 📸U.S. Air Force photo by Airman 1st Class Jacob B. Wrightsman #USAF #Airmen #Airman #maintainer #usairforce #flightline #airforce