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Accident
Last updated: 19 October 2017
Statuts:Enquête Officielle
Date:lundi 20 février 1956
Heure:ca 02:45 UTC
Type/Sous-type:Silhouette image of generic DC6 model; specific model in this crash may look slightly different
Douglas DC-6B
Compagnie:Transports Aériens Intercontinentaux - TAI
Immatriculation: F-BGOD
Numéro de série: 43835/380
Année de Fabrication: 1953
Moteurs: 4 Pratt & Whitney R-2800
Equipage:victimes: 3 / à bord: 9
Passagers:victimes: 49 / à bord: 55
Total:victimes: 52 / à bord: 64
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:29 km (18.1 milles) SE of Cairo International Airport (CAI) (   Egypte)
Phase de vol: En approche (APR)
Nature:Transport de Passagers Intern.
Aéroport de départ:Karachi International Airport (KHI/OPKC), Pakistan
Aéroport de destination:Cairo International Airport (CAI/HECA), Egypte
Détails:
The DC-6 aircraft was on a scheduled flight from Saigon to Paris, France and had left Karachi for Cairo on 19 February at 17:15 UTC. The captain, a company DC-6B check pilot, occupied the right-hand seat during the flight leg between Karachi and Cairo, and the co-pilot, the left-hand seat. He was being checked on this flight as a DC-6B trainee-captain.
The flight was routine until 02:30 (20 February) when the aircraft reported to Cairo Air Traffic Control that it had passed Suez (60 miles east of Cairo) at 02:24 at a flight level of 8500 feet, flying VFR and was descending. At 02:40 it reported the Cairo aerodrome in sight and being 15 miles out, was granted an authorization for a VFR approach and at the same time was given the QFE and QNH, 29.42 and 29.73 respectively. Contact was established with Cairo approach and the aircraft requested and received landing instructions and was asked to call down wind.
When the crew reported the airport in sight, at an altitude of 4500 feet, both crew members thought they were going to overshoot so they lowered the undercarriage and the flaps to increase the rate of descent while maintaining the same speed. The airplane descended to an altitude of 2000 feet, which is 1500 feet below the minimum safe flight altitude for the sector. Descent was continued until the aircraft struck the ground in a nose down attitude. The starboard wing ruptured following the severe shocks sustained by the landing gear, engines and propellers. A fire erupted.

Probable Cause:

PROBABLE CAUSE: "The accident was due to the failure of the pilot-in-command to monitor the co-pilot during a direct approach procedure and the reliance of the latter on his instruments exclusively to fix his position relative to the runway at an altitude below the minimum safe altitude. The factor of crew member fatigue can not be ruled out."

Sources:
» Air Britain Casualty compendium (pt. 66)
» ICAO Circular 54-AN/49 (Digest 8, nr.11)


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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 Karachi International Airport et Cairo International Airport est de 3537 km (2211 miles).
Accident location: Global; accuracy within tens or hundreds of kilometers.

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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