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Last updated: 22 September 2020
Statuts:Enquête Officielle
Date:mardi 14 avril 1953
Heure:02:22
Type/Sous-type:Silhouette image of generic DC3 model; specific model in this crash may look slightly different
Douglas DC-3C
Compagnie:Miami Airline
Immatriculation: N65743
Numéro de série: 20432
Année de Fabrication: 1944
Heures de vol:12185
Equipage:victimes: 2 / à bord: 3
Passagers:victimes: 5 / à bord: 22
Total:victimes: 7 / à bord: 25
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:11 km (6.9 milles) E of Selleck, WA (   Etats-Unis d'Amérique)
Phase de vol: En vol (ENR)
Nature:Charter National
Aéroport de départ:Spokane International Airport, WA (GEG/KGEG), Etats-Unis d'Amérique
Aéroport de destination:Seattle-Boeing Field International Airport, WA (BFI/KBFI), Etats-Unis d'Amérique
Détails:
The flight departed Washington National Airport, at 00:07 for a flight to Seattle. The flight stopped at Cleveland for fuel and oil and arrived at Chicago at 07:35. Shortly after takeoff at Chicago, the flight returned owing to rough operation of the left engine. The left magneto of this engine was replaced by a spare carried on the aircraft and the flight again departed at 12:15 for Minneapolis, made a fuel stop there, and arrived at Fargo at 16:40. One of the engines was spitting and coughing, but it would take a mechanic 15 minutes to get to the plane, and the crew decided to continue. The left engine started with some difficulty and the flight departed Fargo at 17:48 and made fuel stops at Billings and Felts Field, Spokane. The flight departed Spokane at 00:35 the next day on an IFR flight plan. At 02:07 the pilot of the DC-3 reported an engine failure to Seattle Center. Seven minutes later, Seattle Approach Control heard the pilot report that he was icing up and losing altitude. The flight was cleared for an approach to Boeing Field. The last transmission from the aircraft was received at 02:22, reporting that the flight was at 4,800 feet. The airplane struck 150-200 foot trees at the 3,500-foot level of Cedar Mountain while descending with wings level. The right wing tip was the first portion of structure to contact the trees, and both wing panels were progressively torn away to the center section in a series of decelerations. The fuselage broke into three sections, and the nose section was demolished.

Some sources report that this airplane (msn 20432) was rebuilt as N3935C and sold to Canada as CF-DME in 1956. This however seems highly unlikely.

Probable Cause:

PROBABLE CAUSE: "The progressive failure of both engines, due to the lack of compliance with proper maintenance standards."

Sources:
» CAB File No. 1-0019
» ICAO Accident Digest Circular 39-AN/34 (64-66)


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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 Spokane International Airport, WA et Seattle-Boeing Field International Airport, WA est de 355 km (222 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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