148th Fighter Wing Engine Shop
Staff Sgt. Steven Lind, 148th Fighter Wing Engine Shop inspects the compressor rotor on an F-16 engine, March 7, 2015, Duluth, Minn. These routine inspections are in place to catch problems when they are small and fix them before they blossom into much bigger problems. (U.S. Air National Guard photo by Master Sgt. Ralph J. Kapustka/Released)

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Photo by: Master Sgt. Ralph J. KapustkaReleased |  VIRIN: 150307-Z-LR879-016.JPG