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Last updated: 30 November 2020
Statuts:Enquête Officielle
Date:dimanche 18 décembre 1983
Type/Sous-type:Silhouette image of generic A30B model; specific model in this crash may look slightly different
Airbus A300B4-120
Opérant pour:Malaysian Airlines System - MAS
Loué à :Scandinavian Airlines System - SAS
Immatriculation: OY-KAA
Numéro de série: 122
Année de Fabrication: 1980-10-07 (3 years 2 months)
Heures de vol:3907
Moteurs: 2 Pratt & Whitney JT9D-59A
Equipage:victimes: 0 / à bord: 14
Passagers:victimes: 0 / à bord: 233
Total:victimes: 0 / à bord: 247
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:1,2 km (0.8 milles) NNW of Kuala Lumpur Subang International Airport (KUL) (   Malaysie)
Phase de vol: En approche (APR)
Nature:Transport de Passagers Intern.
Aéroport de départ:Singapore-Changi International Airport (SIN/WSSS), Singapour
Aéroport de destination:Kuala Lumpur Subang International Airport (KUL/WMKK), Malaysie
Numéro de vol:MH684
Flight MH684 took off from Singapore at 18:53 for a flight to Kuala Lumpur. Approaching Kuala Lumpur, the aircraft was cleared for an ILS runway 15 approach. At 19:20 RVR was 450 m in heavy rain showers. Though below the company minimum of 800 m, the captain elected to continue the approach, hoping to see the runway. The captain took over control from the first officer, shortly before entering an area of heavy rain showers. Immediately after selecting the windscreen wipers 'on', the radio altimeter sounded. Less then 30 seconds later, the Airbus contacted some trees 2 km short of the runway and the right main gear struck the ground and continued for 436 m. The aircraft then lifted off for 36 m before striking a stream embankment and it slid for 109 m before coming to rest, 1200 m short of the runway. The landing gear and both engines were torn off and a fire erupted, destroying the cabin and cockpit roof.

Probable Cause:

PROBABLE CAUSE: "The flight crew's failure to follow procedural requirements coupled with insufficient monitoring during the approach in instrument meteorological conditions (IMC) and that the approach was continued to below the minimum descent altitude (MDA) without having positive visual references."

» ICAO Circular 196-AN/119 (142-156)
» International Journal of Aviation Safety, Sept. 1985 (218-220)


photo of Airbus-A300B4-120-OY-KAA
accident date: 18-12-1983
type: Airbus A300B4-120
registration: OY-KAA

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 Singapore-Changi International Airport et Kuala Lumpur Subang International Airport est de 296 km (185 miles).

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.
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