Airman 1st Class Zackary Wiggins, 28th Maintenance Squadron fuel system apprentice, checks a B-1 bomber fuel lines at Ellsworth Air Force Base, S.D., Sept. 3, 2014. Fuel system specialists are responsible for repairing, removing, inspecting, installing and modifying B-1 bomber fuel systems. (U.S. Air Force photo by Senior Airman Zachary Hada/Released)