Statuts: | Accident investigation report completed and information captured |
Date: | samedi 5 mars 1966 |
Heure: | 14:15 |
Type/Sous-type: | Boeing 707-436 |
Compagnie: | British Overseas Airways Corporation - BOAC |
Immatriculation: | G-APFE |
Numéro de série: | 17706/113 |
Année de Fabrication: | 1960 |
Heures de vol: | 19523 |
Cycles: | 6744 |
Moteurs: | 4 Rolls-Royce Conway 508 |
Equipage: | victimes: 11 / à bord: 11 |
Passagers: | victimes: 113 / à bord: 113 |
Total: | victimes: 124 / à bord: 124 |
Dégats de l'appareil: | Détruit |
Conséquences: | Written off (damaged beyond repair) |
Lieu de l'accident: | Mount Fuji ( Japon)
|
Élévation des lieux de l'accident: | 1320 m (4331 feet) amsl |
Phase de vol: | En vol (ENR) |
Nature: | Transport de Passagers Intern. |
Aéroport de départ: | Tokyo-Haneda Airport (HND/RJTT), Japon |
Aéroport de destination: | Hong Kong-Kai Tak International Airport (HKG/VHHH), Hong-Kong |
Numéro de vol: | 911 |
Détails:BOAC Flight 911 was a scheduled service from San Francisco (SFO) to Hong Kong (HKG) via Honolulu (HNL) and Tokyo (HND). The Boeing 707 was expected to arrive at Tokyo Airport at 16:45 on 4 March. However, due to poor meteorological conditions at Tokyo and because the precision approach radar (PAR) of the GCA was out of service, it diverted to Fukuoka (FUK) and landed there at 18:00. After staying overnight at Fukuoka, Flight 911 left for Tokyo at 11:25 and landed there at 12:43. The aircraft was prepared for the next leg to Hong Kong and a flight plan was filed for a flight in accordance with the instrument flight rules via Oshima on airway JG6 to Hong Kong at FL310.
At 13:42 hours the crew contacted ATC requesting permission to start the engines and clearance for a VMC climb via Fuji-Rebel-Kushimoto. The aircraft left the ramp at 13:50. It was instructed to make "a right turn after take off", and departed Tokyo Airport at 13:58. After takeoff the aircraft flew over Gotemba City on a heading of approximately 298 deg at an altitude of approximately 4900 m and indicated airspeed of 320 to 370 knots. The aircraft, trailing white vapor, then suddenly lost altitude over the Takigahara area, and parts of the aircraft began to break away over Tsuchiyadai and Ichirimatsu. Finally over Tarobo at an altitude of approx. 2000 m, the forward fuselage broke away. The mid-aft fuselage together with the wing, making a slow flat spin to the right, crashed into a forest at the foot of Mount Fuji. The forward fuselage crashed into the forest approx. 300 m to the west of the above site and caught fire.
Probable Cause:
PROBABLE CAUSE: "The aircraft suddenly encountered abnormally severe turbulence over Gotemba City which imposed a gust load considerably in excess of the design limit."
Sources:
» ICAO Aircraft Accident Digest No.16 - Volume II, Circular 82-AN/69 (35-55)
Photos
accident date:
05-03-1966type: Boeing 707-436
registration: G-APFE
accident date:
05-03-1966type: Boeing 707-436
registration: G-APFE
Plan
Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Tokyo-Haneda Airport et Hong Kong-Kai Tak International Airport est de 2859 km (1787 miles).
Accident location: Exact; as reported in the official accident report.
Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.