169th Maintenance Squadron Propulsion Shop Performs Test Run on a F-16 Fighter Jet Engine. https://www.rawpixel.com/image/9647000/photo-image-person-public-domain-houseFree Image from public domain license169th Maintenance Squadron Propulsion Shop Performs Test Run on a F-16 Fighter Jet EngineU.S. Air Force Airmen, all 169th… https://www.rawpixel.com/image/9654639/photo-image-person-public-domain-houseFree Image from public domain license