Senior Airman Max Bustamante, 22nd Maintenance Squadron non-destructive inspection Airman, dips a section of a KC-135 Stratotanker’s landing gear in phosphorus chemicals, Jan. 25, 2016, at McConnell Air Force Base, Kan. NDI Airmen perform scheduled and unscheduled maintenance inspections on aircraft parts to prevent part failures and mechanical issues and to help ensure the aircraft are in operating condition to continue the aerial refueling mission. (U.S. Air Force photo/Airman Jenna K. Caldwell)