ELLSWORTH AIR FORCE BASE, S.D. -- Senior Airman Coty Winn, 28th Maintenance Squadron aircraft electrical and environmental specialist, tests the continuity of switches on a landing gear control panel here, Sept. 9. The work that the electrical and environmental shop completes saves the Air Force approximately $6.3 million annually. (U.S. Air Force photo/Airman 1st Class Joshua J. Seybert)