148th Fighter Wing Engine Shop
Senior Airman William Lacine and Staff Sgt. Matthew McEwen, 148th Fighter Wing Engine Shop inspect second stage fan blades 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-LR879-036.JPG