High voltage
JOINT BASE BALAD, Iraq -- Staff Sgt. William Houston uses a 501 tester to check for a proper signal between a newly installed wing weapons pylon and an F-16 Fighting Falcon's computer. Communication between the aircraft's computer and weapons pylon allows the pilot to accurately deploy the proper weapon to complete the mission. Sergeant Houston, a weapons crewmember with the 332nd Expeditionary Aircraft Maintenance Squadron here, is deployed from Hill Air Force Base, Utah. (U.S. Air Force photo/Airman 1st Class Jason Epley)