Airman 1st Class Luis Garcia, 22nd Aircraft Maintenance Squadron crew chief, cleans a jack screw on a KC-135 Stratotanker cove lip door Feb. 12, 2020, at McConnell Air Force Base, Kansas. The cleaning was part of a 60-day inspection, which involved servicing aircraft components that are not usually investigated during a normal pre-flight or regular flight inspection. (U.S. Air Force photo by Senior Airman Alan Ricker)