No backyard mechanics
Senior Airman John T. Eckardt, 372nd Training Squadron, Det. 6, B-2 Spirit instruments and flight controls instructor, demonstrates his ability to work on a pitch torque tube and pitch positioning sensor assembly at Whiteman Air Force Base, Mo., June 12, 2013. Once he is a fully qualified instructor, he will pass his knowledge on to Airmen new to the career field, as well as experienced Airmen from other airframes. (U.S. Air Force photo by Staff Sgt. Brigitte N. Brantley/Released)