Senior Airmen Thomas Crawford (left) and Rob Wainwright, 823rd Maintenance Squadron HH-60G Pave Hawk crew chiefs, re-install a heating duct on an HH-60G during the aircraft’s phase inspection at the 823rd MXS maintenance hangar on Nellis Air Force Base, Nev., Feb. 24, 2015. The mission of the 823rd MXS is to maintain, service and inspect HH-60G aircraft. (U.S. Air Force photo by Senior Airman Thomas Spangler)