170306-F-RI741-708
Bob Berg, M1 Support Services aircraft mechanic, uses a rivet gun to secure rivets in place to secure new floor paneling on a UH-1N Huey helicopter during a scheduled phase maintenance inspection on the aircraft March 6, 2017, at Malmstrom Air Force Base, Mont. The phase inspection period usually lasts 4 to 6 weeks and routinely occurs after 400 flight hours. Berg, along with a team of three other mechanics, ensure components such as wiring, hydraulic lines and other vital components are operating at Air Force standards. (U.S. Air Force photo/Jason Heavner)