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Statuts:
Date:lundi 23 août 1954
Heure:ca 11:30
Type/Sous-type:Silhouette image of generic DC6 model; specific model in this crash may look slightly different
Douglas DC-6B
Compagnie:KLM Royal Dutch Airlines
Immatriculation: PH-DFO
Numéro de série: 43556/257
Année de Fabrication: 1952
Heures de vol:6308
Moteurs: 4 Pratt & Whitney R-2800
Equipage:victimes: 9 / à bord: 9
Passagers:victimes: 12 / à bord: 12
Total:victimes: 21 / à bord: 21
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:North Sea, 37km N Dutch coast (   Pays-Bas)
Phase de vol: En vol (ENR)
Nature:Transport de Passagers Intern.
Aéroport de départ:Shannon Airport (SNN/EINN), Irlande
Aéroport de destination:Amsterdam-Schiphol International Airport (AMS/EHAM), Pays-Bas
Détails:
KLM Douglas DC-6 PH-DFO (named "Willem Bontekoe") departed New York on 22 August for a flight to Amsterdam with an en-route stop at Shannon. The aircraft departed Shannon at 09:29 GMT for the last leg of the flight. After almost two hours the crew contacted Amsterdam and reported crossing the Netherlands FIR boundary. Three minutes later they contacted Amsterdam Area Control Centre reporting that they were starting the descent for Amsterdam, heading for the Spykerboor beacon. Estimated arrival time over the Spykerboor beacon was 11:37. The flight was then cleared to approach this beacon at 5500 feet or above, later amended to 4500 feet and 3500 feet or above. At 11:35 Amsterdam Area Control Centre cleared the flight to descend to 2500 feet but no answer was received. After an extensive search, hampered by low clouds, showers and heavy seas, floating debris was found at 16:10, off the Dutch coast near Bergen.
Witnesses on the ground reported having heard the flight pass overhead near Egmond (where Airway 'Green 2' crosses the coast. Other witnesses also reported seeing the aircraft at 12:01 when it passed overhead at a low altitude heading back for the sea.
Salvage work was stopped on November 25, when 45-50% of the aircraft had been brought ashore.

Probable Cause:

PROBABLE CAUSE: "A number of hypotheses as to the cause of the accident were developed. Some possibilities considered were: overheating of the electric system with heavy smoke development, explosion of one of the high pressure bottles, failure of a cockpit window failure of the automatic pilot. However, no hypothesis could be formulated in which all occurrences and evidence could be made reasonably acceptable. Therefore, in November 1955, after a 15-months' period of intensive investigation, the conclusion had to be drawn that the cause of the accident could not be established."

Sources:
» ICAO Circular 50-AN/45 (p.17-19)


Photos

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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 Shannon Airport et Amsterdam-Schiphol International Airport est de 919 km (575 miles).
Accident location: Approximate; accuracy within a few 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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Douglas DC-6

  • 704 built
  • 20ème loss
  • 15ème accident fatal
  • le accident 11ème le plus grave (à ce moment là)
  • le accident 39ème le plus grave (en ce moment)
» safety profile

 Pays-Bas
  • le accident 3ème le plus grave (à ce moment là)
  • le accident 6ème le plus grave (en ce moment)
» safety profile

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