9th Troop Carrier Squadron, Heavy

Constituted 9th Transport Squadron on 1 Jan 1938. Activated on 1 Dec 1940. Redesignated 9th Troop Carrier Squadron on 4 Jul 1942. Inactivated on 15 Oct 1946. Redesignated 9th Troop Carrier Squadron, Medium, on 10 May 1949. Activated in the Reserve on 27 Jun 1949. Ordered to active service on 1 May 1951. Inactivated on 9 May 1951. Redesignated 9th Troop Carrier Squadron, Heavy, on 19 Mar 1953. Activated on 20 Jun 1953. Discontinued, and inactivated, on 18 Jan 1963. Activated on 13 Nov 1964. Organized on 1 Jan 1965. Redesignated 9th Military Airlift Squadron on 8 Jan 1966. Discontinued, and inactivated, on 8 Sep 1968. Activated on 1 Apr 1971. Redesignated 9th Airlift Squadron on 1 Dec 1991-.