Tech. Sgt. Juanita Davis, 36th Maintenance Squadron non-destructive inspection specialist, uses a magnetic particle machine to detect cracks in a piece of metal, which could potentially damage aircraft Feb. 3, 2016, at Andersen Air Force Base, Guam. The 36th MXS NDI lab uses high-tech equipment to perform operations on aircraft to ensure Airman safety, cost-effectiveness and mission success. (U.S. Air Force photo/Airman 1st Class Arielle Vasquez)