Staff Sgt. Jose Barsallo, 455th Expeditionary Aircraft Maintenance Squadron F-16C Fighting Falcon crew chief, installs an engine on an F-16C Fighting Falcon, Bagram Airfield, Afghanistan, Aug. 9, 2016. Crew chiefs are responsible for diagnosing aircraft malfunctions and replacing components. They ensure the aircraft is mission ready. (U.S. Air Force photo by Senior Airman Justyn M. Freeman)
<br>Unit: 455th Air Expeditionary Wing
Senior Airman Justyn Freeman
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