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YOUNGSTOWN AIR RESERVE STATION, Ohio — U.S. Air Force Reserve Master Sgt. Nathan Moffitt, a machinist for the 910th Maintenance Group here, checks the dimensions for the lower control arm of the nose landing gear on a C-130H Hercules aircraft. Metals technicians like Moffitt, who specialize in welding and machining parts, use a variety of machines and hand tools to fabricate and repair aircraft parts. U.S. Air Force photo by Tech. Sgt. Rick Lisum