F-22 Engine Run Certification

Senior Airman Jennifer Dunham, 3rd Aircraft Maintenance Squadron F-22 crew chief, prepares to be evaluated on her first F-22 engine run. Dunham was one of three students that had attended a week long training course to become certified to perform safe engine runs on the F-22. Maintenance personnel routinely perform operational checks of all the aircraft systems, such as hydraulics or avionics, after performing maintenance on the aircraft. (U.S. Air Force Reserve Photo/Tech. Sgt. Dana Rosso)

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VIRIN: 130201-F-PB632-010.JPG

FULL SIZE: 4.81 MB

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