434th Aircraft Maintenance
Staff Sgt. Brandon Matthews, 434th Maintenance Squadron metals technician, replaces the rolling pins within the boom of a KC-135R Stratotanker, March 13, 2021, Grissom Air Reserve Base, Indiana. The aircraft was receiving maintenance overall, because the controlling equipment was unable to lower itself down far enough to meet the receiving aircraft. (U.S. Air Force photo by Staff Sgt. Alexa Culbert)