The squadron remained in the Far East and as the 39th Fighter-Interceptor Squadron was part of the air defenses of Japan when North Korea invaded South Korea. The 39th earned two more DUCs and a Republic of Korea Presidential Unit Citation during combat in Korea. Following the 1953 truce, the squadron returned to Japan, serving as an air defense unit until inactivating in December 1957.
Re-equipped with long-range Lockheed P-38 Lightnings and deployed to Fifth Air Force in Australia, June 1942. Engaged in combat operations against the Japanese in the Lightning, but became the second Pacific Theater fighter group[clarification needed unit is squadron, not group] to convert to the Republic P-47 Thunderbolt in late 1943. Conducted combat operations in the Thunderbolt from late 1943 through Spring 1945. Participated in offensives in the Netherlands East Indies, New Guinea, Bismarck Archipelago, Philippines and the Battle of Okinawa.
Far East Air Forces
Re-equipped with North American P-51 Mustangs and moved to Japan as part of the army of occupation, September 1945, remaining as part of the Far East Air Forcesair defense mission throughout the postwar era. Engaged in combat, June 1950, during the initial actions of the Korean War. Re-equipped with Lockheed F-80 Shooting Star jets, fighting air-to-air combat against communist aircraft and engaging in ground support missions supporting United Nations Forces, 1950–1953. Returned to Japan after the 1953 armistice and upgraded to the purpose-built Lockheed F-94 Starfire interceptor flying air defense missions.
The squadron moved to Johnson Air Base on 20 July 1954 and established temporary air defense detachments on the same day at Komaki Air Base,[note 2] Japan to 4 August 1954 and at Misawa Air Base, Japan to 27 August 1954.[1] The squadron was inactivated in December 1957.[1]
Reactivated by Air Training Command as an undergraduate pilot training squadron with Northrop T-38 Talons, 1990–1991. Transferred to Air Force Materiel Command, 1993 as a flight test squadron on various weapons systems from 1993 to 1999, then went back to Air Education and Training Command providing flying training from 2001 till 2007 where it was transferred to the Air Force Reserve Command.[1]
Lineage
Constituted as the 39th Pursuit Squadron (Interceptor) on 22 December 1939
Activated on 1 February 1940
Redesignated 39th Fighter Squadron on 15 May 1942
Redesignated 39th Fighter Squadron (Twin Engine) on 27 October 1942
Redesignated 39th Fighter Squadron, Single Engine on 19 February 1944
Redesignated 39th Fighter-Interceptor Squadron on 20 January 1950
Inactivated on 8 December 1957
Redesignated 39th Tactical Reconnaissance Training Squadron on 18 August 1969
Organized on 15 October 1969
Redesignated 39th Tactical Electronic Warfare Training Squadron on 15 February 1970[note 5]
Inactivated on 15 March 1974
Redesignated 39th Tactical Fighter Training Squadron on 1 June 1977
Activated on 1 July 1977
Redesignated 39th Tactical Fighter Squadron on 9 October 1980
Inactivated on 11 May 1984
Redesignated 39th Flying Training Squadron on 9 February 1990
Activated on 2 April 1990
Inactivated on 15 December 1991
Redesignated 39th Test Squadron on 31 August 1993
Activated on 8 September 1993
Redesignated 39th Flight Test Squadron on 15 March 1994
Inactivated on 1 September 1999
Redesignated 39th Flying Training Squadron on 30 September 1999
^Aircraft is North American F-86D Sabre serial 52-4038. Taken in 1955.
^Maurer, Combat Squadrons, p. 183. Haulman misspells this as Komati.
^Aircraft is McDonnell F-4C-23-MC, serial 64-781. Taken about 1980.
^Aircraft is General Dynamics F-16B Block 1 Fighting Falcon serial 78-97, about 1995. The oldest active F-16 in the USAF inventory, originally delivered to the 388th Tactical Fighter Wing at Hill AFB in 1979.