ELLSWORTH AIR FORCE BASE, S.D. - Staff Sgt. Brandon Roel (left), 28th Maintenance Squadron non-destructive inspection technician, reads off the specification as Senior Airman Evan Bryant (right), 28 MXS NDI technician, inputs it into Eddy Current Equipment as part of the calibration setup Sept. 2. The equipment is calibrated before conducting a routine inspection on B-1B Lancer landing gear wheels. (U.S. Air Force photo/Senior Airman Kasey Close)