39th MXS welcomes new commander Published July 5, 2017 By Airman 1st Class Devin M. Rumbaugh 39th Air Base Wing Public Affairs INCIRLIK AIR BASE, Turkey -- U.S. Air Force Maj. Thane Sisson, 39th Maintenance Squadron incoming commander, speaks to a group of airmen after assuming command, June 30, 2017, at Incirlik Air Base, Turkey. A change of command ceremony is a tradition that represents a formal transfer of authority and responsibility from the outgoing commander to the incoming commander. (U.S. Air Force photo by Airman 1st Class Devin M. Rumbaugh)