U.S. Air Force Staff Sgt. Andrew McConkay guides Staff Sgt. Daniel Fox, both heavy equipment operators with the 557th Rapid Expeditionary Deployable Heavy Operational Repair Squadron, as he operates a crane during a C-130 Hercules aircraft engine swap by Airmen with the 379th Expeditionary Aircraft Maintenance Squadron, 746th Expeditionary Aircraft Maintenance Unit in Southwest Asia Dec. 11, 2013.