Non-destructive inspection cracks down
Airman 1st Class Ashton Surber, 36th Maintenance Squadron non-destructive inspection journeyman, adjusts a radiographic machine Aug. 21, 2014, on Andersen Air Force Base, Guam. NDI Airmen detect flaws using penetrant, magnetic particle, radiographic, optical and ultrasonic test equipment. (U.S. Air Force photo by Senior Airman Katrina M. Brisbin/Released)