309th Maintenance Wing The 309th Maintenance Wing is an inactive wing of the United States Air Force last based at Hill Air Force Base , Utah . On July 12 , 2012 it was inactivated and its function became part of the newly formed Ogden Air Logistics Complex . History . World War II . The wing was first activated in the early expansion of the Army Air Forces during World War II as the 309th Bombardment Group at Davis - Monthan Field , Arizona . Its initial components were the 376th , 377th , and 378th Bombardment Squadrons , and the 37th Reconnaissance Squadron . The group was an Operational Training Unit ( OTU ) , which trained bombardment groups until January 1943 . The OTU program involved the use of an oversized parent unit to provide cadres to " satellite groups . " It then became a Replacement Training Unit and trained replacement aircrew s , using B - 25 Mitchell aircraft in both training programs . In addition , the group operated specialist training schools , with as many as eight in operation at once . However , the AAF was finding that standard military units , based on relatively inflexible tables of organization were proving less well adapted to performing the mission . Accordingly a more functional system was adopted in which each base was organized into a separate numbered unit . As a result , in 1944 , the group was disbanded and replaced by the 329th Army Air Force Base Unit ( Replacement Training Unit , Medium , Bombardment ) , which absorbed the mission , material , and personnel of the group . The group ' s four squadrons became Sections A through D of the Base Unit . Reserve Airlift Operations . Postwar the group was reconstituted and redesignated as the Continental Air Command reserve 309th Troop Carrier Group . The 309th used the aircraft of the active duty 314th Troop Carrier Wing , to which it was attached for training . The group was transferred to Tactical Air Command in 1950 , after which it apparently ceased flying operations . It was inactivated in 1951 and its personnel deployed to Far East Air Forces to support 315th Air Division transport units during the Korean War . Assault Airlift Operations . The unit was reactivated at Ardmore AFB in 1955 . It replaced the 16th Troop Carrier Squadron , which was flying the Air Force ' s fleet of YC - 122 Avitruc s . The group became the first fixed wing assault airlift group in the Air Force and was the first to fly the C - 123B . The 309th trained to airlift troops , equipment , and supplies for assault landings . After training with the 463d Troop Carrier Wing , the group deployed to Europe . Less than a year later , the group was inactivated and its squadrons transferred to the 60th Troop Carrier Wing . Maintenance Wing . The wing remained inactive until Air Force Material Command ( AFMC ) replaced many of its traditional subordinate command staff agencies with wings , groups , and squadrons in the Air Force Material Command Transformation Initiative . The 309th became the 309th Maintenance Wing and provided depot repair , modification and maintenance for the F - 22A Raptor , F - 16 Fighting Falcon , A - 10 Thunderbolt , C - 130 Hercules , and the Peacekeeper and Minuteman III intercontinental ballistic missile s . In 2012 , AFMC reversed this action in the process of reducing its number of centers and inactivated the wing . Lineage . Components . Groups Squadrons