913 AG promotes two in September Published Aug. 31, 2017 By Master Sgt. Jeff Walston 913th Airlift Group Little Rock Air Force Base, Ark. -- The 913th Airlift Group congratulates the following Airmen on their recent promotions: 913th Operations Support Squadron Master Sgt. Michael Troy 327th Airlift Squadron Staff Sgt. Brittany Coburn The 913th Airlift Group is a C-130J Super Hercules Air Force Reserve unit at Little Rock Air Force Base, Ark. It is the only C-130 Classic Association unit in the Air Force.