HOLLOMAN AIR FORCE BASE, -- Staff Sgt. Zachery Doering, 49th Maintenance Squadron non-destructive inspection specialist, checks the integrity of a main thrust pin by performing a magnetic particle inspection Feb. 11. A magnetic particle inspection reveals any surface and subsurface defects of magnetic metal items. The test is used on a case-by-case basis to determine whether or not the part will need to be replaced. ( Air Force photo by Senior Airman Tiffany Trojca)

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Keywords: 49, air, airforce, base, fighter, force, holloman, military, states, united, usa, wing