Tower maintenance
Senior Airman Robert Oehmke performs maintenance on the Glidescope antenna tower Wednesday, March 29, 2006, at Davis-Monthan Air Force Base, Ariz. The antenna connects a very high frequency radio with the flight check office, which verifies calibration and alignment of airfield navigational equipment. Airman Oehmke is an airfield systems journeyman with the 355th Communications Squadron. (U.S. Air Force photo/Senior Airman Christina D. Ponte)