Activated in South Vietnam in 1966. Flew C-47 aircraft equipped with electronic countermeasures equipment over South Vietnam. Reassigned to Thailand in 1972 as part of USAF draw-down in South Vietnam. Continued missions over Indochina until 15 August 1973 when United States military flights over Indochina halted by congressional mandate. Trained in Thailand until inactivation in 30 June 1974.