Accident
Last updated: 18 December 2014
Status:Definitief
Datum:maandag 20 april 1953
Tijd:23:08
Type:Silhouette image of generic DC6 model; specific model in this crash may look slightly different
Douglas DC-6B
Luchtvaartmaatschappij:Western Air Lines
Registratie: N91303
Constructienummer: 43823/298
Bouwjaar: 1952
Aantal vlieguren:826
Motoren: 4 Pratt & Whitney R-2800-CB16
Bemanning:slachtoffers: 4 / inzittenden: 5
Passagiers:slachtoffers: 4 / inzittenden: 5
Totaal:slachtoffers: 8 / inzittenden: 10
Schade: Afgeschreven
Gevolgen: Written off (damaged beyond repair)
Plaats:San Francisco Bay, CA (   Verenigde Staten)
Fase: Nadering (APR)
Soort vlucht:Binnenlandse lijnvlucht
Vliegveld van vertrek:San Francisco International Airport, CA (SFO/KSFO), Verenigde Staten
Vliegveld van aankomst:Oakland International Airport, CA (OAK/KOAK), Verenigde Staten
Vluchtnummer: 636
Beschrijving:
Western Flight 636 was a scheduled flight from Los Angeles to Oakland with an intermediate stop at San Francisco. The DC-6 departed San Francisco's runway 28R at 23:05 for s short VFR flight across the bay to Oakland. The flight was to remain clear of clouds at a minimum altitude of 500 feet.
The crew were cleared to enter the traffic pattern for Oakland's runway 27R, three minutes later. On approach, the aircraft descended into the bay and crashed.


PROBABLE CAUSE: "The pilot's action in continuing a descent below the 500-foot prescribed minimum altitude until the aircraft struck the water. A probable contributing factor to the aircraft striking the water was the sensory illusion experienced by the pilots."

Bronnen:
» CAB File No. 1-0020
» ICAO Accident Digest Circular 39-AN/34 (67-71)


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Kaart
Deze kaart geeft het vliegveld van vetrek weer en de geplande bestemming van de vlucht. De lijn tussen de vliegvelden geeft niet de exacte vliegroute weer.
De afstand tussen San Francisco International Airport, CA en Oakland International Airport, CA bedraagt 18 km (11 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Networkĺs opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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