When North Vietnamese forces captured Da Nang Air Base, at the end of March 1975, they captured large amounts of stores and equipment, including 33 intact A-37s. On 28 April 1975, several captured A-37s were used by the North Vietnamese to attack Tan Son Nhut Air Base, still held by the South Vietnamese. Approximately 187 A-37Bs were in RVNAF service at the Fall of Saigon in April 1975. Ninety-two were recovered by the US, while the other 95 were later used by the Vietnam People's Air Force in missions over Cambodia and during the China conflict in 1979. These "renegade" aircraft were phased out of service in the late 1970s or early 1980s, likely due to the lack of spares. Some of the aircraft were shipped to Vietnam's then-Communist allies such as Czechoslovakia, Poland, the Soviet Union and East Germany. Others were sold to private foreign owners. Six examples of the A-37B became property of American warbird fans, while four A-37Bs are now privately owned in Australia and New Zealand.