U.S. Air Force Staff Sgt. Johnathan Shellhart, a machinist with the 442d Maintenance Squadron, places a piece of stock into a CNC mill July 13, 2020 on Whiteman Air Force Base, Mo. Shellhard helped design and build a wing spar web for an aircraft that had been down since October 2020 due to a bird strike on the wing. (US Air Force photo by Master Sgt. Bob Jennings)