Senior Airman Jaron Dowell, 507th MXS, Maintenance Flight applies safety wiring to a drain plug on the Air Cycle Machine during an hourly post flight inspection Monday March 17, 2014. The inspection performed on one of the 507th Air Refueling Wing’s KC-135R Stratotankers is accomplished every 60 days. It involves servicing components on the aircraft that are not looked at during a normal preflight or thru flight inspection. (U.S. Air Force photo/Senior Airman Mark Hybers)