Airman 1st Class Michael Souza, 28th Maintenance Squadron crew chief, trains Airman 1st Class Brandon Killebrew, 28th MXS crew chief, on how to inspect the nose landing gear on the B-1B Lancer on Ellsworth Air Force Base, S.D., Oct. 13, 2011.The nose landing gear inspection is one of many checks that must be done to ensure the base’s B-1B fleet is ready for any tasking. (U.S. Air Force photo by Airman Alystria Maurer/Released)