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F-16 Propulsion Maintenance.
U.S. Air Force Staff Sgt. Jesse Summerlin, a 169th Maintenance Squadron aerospace propulsion mechanic, inspects and repairs a segment of an F-16 fighter jet engine at McEntire Joint National Guard Base, South Carolina, May 14, 2021. (U.S. Air National Guard photo by Senior Airman Mackenzie Bacalzo). Original public domain image from Flickr
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