Three B-1B Lancer's on the flight line undergoing heavy depot level maintenance
The forward fusealge and noses of three B-1B Lancer's on the flight line undergoing heavy depot level maintenance with the Oklahoma City Air Logistics Complex at Tinker Air Force Base, Oklahoma, Dec. 4, 2017. OC-ALC provides maintenance and sustainment of the Air Force's fleet of B-1s under the Air Force Sustainment Center's ALC structure. (U.S. Air Force photo/Greg L. Davis)