434th Aircraft Maintenance
Airmen assigned to the 434th Aircraft Maintenance Squadron repair the boom of one of the many KC-135R Stratotankers, March 13, 2012, Grissom Air Reserve Base, Indiana. The boom gives the KC-135R Stratotanker its mid-flight refueling capabilities and is highly essential to the mission. (U.S. Air Force photo by Staff Sgt. Alexa Culbert)