Airman 1st Class Jamie Jones, 437th Maintenance Squadron Aerospace Ground Equipment apprentice, replaces a lanyard for a hinge pin May 7, 2012 at Joint Base Charleston – Air Base, S.C. Jones performs scheduled and unscheduled maintenance on aerospace ground equipment. He inspects, tests, and operates AGE to determine equipment serviceability and proper operation. (U.S. Air Force photo/Airman 1st Class Chacarra Walker)

Senior Airman Alexander Ewing, 437th Maintenance Squadron Aerospace Ground Equipment journeyman, and Airman 1st Class Jamie Jones, 437th MXS AGE apprentice, check the oil on a Self-Generating Nitrogen Servicing Cart May 7, 2012 at Joint Base Charleston – Air Base, S.C. The SGNSC is intended primarily for flight-line servicing of aircraft, including tire filling, charging, landing struts and charging hydraulic accumulators. (U.S. Air Force photo/Airman 1st Class Chacarra Walker)

Airman 1st Class Jamie Jones, 437th Maintenance Squadron Aerospace Ground Equipment apprentice, replaces a lanyard for a hinge pin May 7, 2012 at Joint Base Charleston – Air Base, S.C. Jones performs scheduled and unscheduled maintenance on aerospace ground equipment. He inspects, tests, and operates AGE to determine equipment serviceability and proper operation. (U.S. Air Force photo/Airman 1st Class Chacarra Walker)