ELLSWORTH AIR FORCE BASE, S.D. – A technical manual and two sets of marshalling wands, belonging to the 28th Aircraft Maintenance Squadron, sit on the flightline during a Phase II Operational Readiness Inspection, Oct. 14. The 28th AMXS ensures compliance with technical data, safety, security, documentation and supply procedures. (U.S. Air Force photo/Staff Sgt. Marc I. Lane)