Fuel cell training
U.S. Air Force Senior Airman Kyle Quiggle, who is assigned to the 55th Maintenance Squadron Fuel Systems Repair Shop, rescues a dummy from a small opening on the bottom of a fuel cell as part of an annual Fuel Systems Extraction Exercise at Offutt Air Force Base, Neb., Nov. 10. Small openings in the fuel cells allow just enough room for a repairman to enter and fix the any issues that may arise. (U.S. Air Force photo by Josh Plueger/Released)