PMEL calibrates equipment
Senior Airman Mitchell Hess, 8th Maintenance Squadron, precision measurement equipment laboratory technician, calibrates an AFT bore-sight fixture using an electronic height gauge at Kunsan Air Base, Republic of Korea, Oct. 3, 2012. The gauge, which is calibrated to 5 millionths of an inch, guarantees the equipment used by the aircraft maintenance squadron to align the F-16 Fighting Falcons precision targeting system is accurate. (U.S. Air Force photo/Senior Airman Marcus Morris)