ELLSWORTH AIR FORCE BASE S.D.-- Airman 1st Class Luis Garrigas, 28th Maintenance Squadron non-destructive inspection journeyman, performs a magnetic particle inspection to search for any defects on a wire rope hook, Feb. 25. Airman Garrigas detects flaws, such as cracks, and then interprets the results for the repair center. (U.S. Air Force photo/Airman 1st Class Corey Hook)