Angels on-call: 1st Expeditionary Rescue Group - Operating Location Alpha
Senior Airman Jarrod Williams, an HH-60G Pave Hawk crew chief assigned to the 801st Expeditionary Maintenance Squadron, troubleshoots avionics systems November 21, 2017, in an undisclosed location. Maintenance Airmen work shifts around the clock to ensure rescue teams can rely on safe, mission-capable aircraft in the event of a call. (U.S. Air Force photo by Staff Sgt. Joshua Kleinholz)