Becoming a senior NCO Published Dec. 7, 2009 GRISSOM AIR RESERVE BASE, Ind., -- Members of the 434th Air Refueling Wing, take the oath of induction into the ranks of senior NCO status during a special induction ceremony. Each quarter, the 434th ARW holds a special ceremony to recognize those who were promoted to NCO status. (U.S. Air Force photo/Tech. Sgt. Doug Hays)