U.S. Air Force Airman 1st Class Samuel Rivera, 1st Aircraft Maintenance Squadron, 27th Aircraft Maintenance Unit crew chief, cleans the landing gear of a F-22 Raptor in the wash rack at Joint Base Langley-Eustis, Va., June 19, 2017. By washing the F-22, it allows the crew chiefs to better see discrepancies on the aircraft. (U.S. Air Force photo/Staff Sgt. J.D. Strong II)