127th MXG Assumption of Command
Lt. Col. Rolf E. Mammen accepts the position of 127th Maintenance Group commander with a salute from the 127th Wing Commander Col. Michael Thomas at Selfridge Air National Guard Base, Mich., on Sunday, March 10, 2013. Mammen is directly responsible for the safe and effective maintenance of 127th Wing assigned A-10C aircraft and approximately 550 maintenance airmen. (USAF photo by TSgt Robert Hanet)