The standard's standard

U.S. Air Force Senior Airman Evan Caso, 31st Maintenance Squadron precision measurement equipment laboratory journeyman, checks the setscrew height on a rate sensor unit boresight, Feb. 10, 2015, at Aviano Air Base, Italy. A PMEL technician’s job is to calibrate and repair measurement and diagnostic equipment to provide customers with reliable, safe and accurate equipment that meets and exceeds expectations. (U.S. Air Force photo by Airman 1st Class Ryan Conroy/Released)

PHOTO BY: Airman st Class Ryan ConroyReleased
VIRIN: 150210-F-BH566-150.JPG
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