171212-F-VG386-1010
U.S. Air Force Airman 1st Class Kayla Laprade, 100th Maintenance Squadron Non-Destructive Inspection journeyman, conducts an ultra-sonic inspection on the right wing of a KC-135 Stratotanker on RAF Mildenhall, England, Dec. 12, 2017. The ultrasonic inspection checks for a difference in thickness of layers, which would indicate a weakness. (U.S. Air Force photo by Airman 1st Class Luke Milano)