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185th Air Refueling Wing vehicle mechanic Master Sgt. Ryan Lieber works on the bottom side of a huge Detroit Diesel engine on a 1996 Teledyne P23 “Crash Truck” in Sioux City, Iowa on June 8, 2022. A team of mechanics are overhauling the engine because it had developed an internal coolant leak. U.S. Air National Guard photo Senior Master Sgt. Vincent De Groot
28.0-300.0 mm f/3.5-5.6
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