On 19 February 1985, the Boeing 747SP operating the flight was involved in an aircraft upset accident, following the failure of the No. 4 engine, while cruising at 41,000 ft (12,500 m).
O 19 de febreiro de 1985 o Boeing 747SP que operaba a ruta estivo envolto nun contratempo tras o fallo do motor número 4, mentres voaba a 41 000 pés (12 500 m).