U.S. Air Force Staff Sgt. Demarcus Lockett, 4th Component Maintenance Squadron intermediate avionics specialist, conducts alignments on a low band receiver on Seymour Johnson Air Force Base, N.C., Jan. 8, 2013. The avionics shop performs maintenance on F-15E Strike Eagle electronic components to include displays, radar, navigation and electronic warfare. (U.S. Air Force photo/Airman 1st Class Gino Reyes/Released)