Staff Sgt. Ralph D’Ambrosio III, 22nd Aircraft Maintenance Squadron KC-46A Pegasus work manager, lubricates a forward trunnion bearing March 20, 2019, at McConnell Air Force Base, Kan. It is estimated that the first A-check will be between 240 and 320 work hours based on initial training. (U.S. Air Force photo by Staff Sgt. Chris Thornbury)