Senior Airman Kevin Jackson, a crew chief from the 932nd Maintenance Group, 932nd Airlift Wing, lubes a jack screw on the tail stabilizer of a C-9C Skytrain aircraft in hangar one, Scott AFB, Ill. Assigned to the 932nd Airlift Wing, the C-9C, along with the C-40C, provide distinguished visitor airlift. U.S. Air Force photo/Tech. Sgt. Tony R. Tolley