ELLSWORTH AIR FORCE BASE, S.D. - Staff Sgt. Brandon Roel (left), 28th Maintenance Squadron non-destructive inspection technician, and Senior Airman Evan Bryant (right), 28 MXS NDI technician, calibrates Eddy Current Equipment Sept. 2. After calibrating, Sergeant Roel and Airman Bryant will conduct a routine inspection on B-1B Lancer landing gear wheels. (U.S. Air Force photo/Senior Airman Kasey Close)