B-1 Life Line
Lanny Harris, (left) 28th Maintenance Squadron, Air Force engineering technical services weapon systems technician, and Garry Cummings, 28th MSXS AFETS crew chief, prepare to inspect a B-1 for systems malfunctions during maintenance on Ellsworth Air Force Base, S.D., Feb. 16, 2012. Harris and Cummings review technical data, work orders, and aircraft maintenance procedures to evaluate the efficiency of maintenance operations. (U.S. Air Force photo by Airman 1st Class Zachary Hada/Released)