Senior Airman Clarence Tobias, 36th Maintenance Squadron non-destructive inspection specialist, checks an x-ray film of B-52 flaptracks for cracks Feb. 3, 2016, at Andersen Air Force Base, Guam. NDI is responsible for performing inspections of aircraft structural components to identify damages at a microscopic level. (U.S. Air Force photo/Airman 1st Class Arielle Vasquez)