Senior Airman James Chazotte, 28th Maintenance Squadron metals technology technician, repairs an aerospace ground equipment oil cart in the welding shop at Ellsworth Air Force Base, S.D., April 11, 2012. The base relies on the metals technology shop for all welding maintenance of tools and equipment needed to support base operations. (U.S. Air Force photo by Airman 1st Class Kate Thornton/Released)