Airmen check over a technical order while working on a B-1B Lancer during a Phase II Operational Readiness Inspection Oct. 15, 2010, at Ellsworth Air Force Base, S.D. Maintenance Airmen use the TO to ensure safety and accuracy. Airmen are assigned to the 28th Aircraft Maintenance Squadron. (U.S. Air Force photo/Airman 1st Class Anthony Sanchelli)