https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/4224888Edit ImageSaveSaveEditCropCustom TextAirman 1st Class Jacob King, a native of Knoxville, Tenn., assigned to the Nondestructive Inspection section of the 3rd Maintenance Unit, performs a Magnetic particle test for surface and sub surface discontinuities on an aircraft part at Joint Base Elmendorf-Richardson, Alaska, Jan. 10, 2017. Nondestructive inspection Airmen analyze wear metal content on engine lubricating oil and other fluids, as well as detect flaws such as cracks, voids and heat damage on aircraft parts utilizing various test equipment. (U.S. Air Force photo/Justin Connaher). Original public domain image from FlickrMorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGBanner JPEG 1200 x 805 px | 300 dpiLarge JPEG 3500 x 2347 px | 300 dpiBest Quality JPEG 4965 x 3330 px | 300 dpiFree DownloadAirman 1st Class Jacob King, a native of Knoxville, Tenn., assigned to the Nondestructive Inspection section of the 3rd Maintenance Unit, performs a Magnetic particle test for surface and sub surface discontinuities on an aircraft part at Joint Base Elmendorf-Richardson, Alaska, Jan. 10, 2017. Nondestructive inspection Airmen analyze wear metal content on engine lubricating oil and other fluids, as well as detect flaws such as cracks, voids and heat damage on aircraft parts utilizing various test equipment. (U.S. Air Force photo/Justin Connaher). Original public domain image from FlickrMore