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Last updated: 17 January 2022
Status:Definitief
Datum:woensdag 12 december 1956
Tijd:08:50
Type:Silhouette image of generic L18 model; specific model in this crash may look slightly different
Lockheed 18-14 Lodestar
Luchtvaartmaatschappij:Phillips Petroleum Company
Registratie: N28366
Constructienummer: 18-2043
Bouwjaar: 1940
Bemanning:slachtoffers: 2 / inzittenden: 2
Passagiers:slachtoffers: 6 / inzittenden: 6
Totaal:slachtoffers: 8 / inzittenden: 8
Schade: Afgeschreven
Gevolgen: Written off (damaged beyond repair)
Plaats:11 km (6.9 mijl) SE of Bartlesville Airport, OK (BVO) (   Verenigde Staten)
Fase: Kruisvlucht (ENR)
Soort vlucht:Zaken
Vliegveld van vertrek:Bartlesville Airport, OK (BVO/KBVO), Verenigde Staten
Vliegveld van aankomst:Salt Lake City International Airport, UT (SLC/KSLC), Verenigde Staten
Beschrijving:
About 14 minutes after takeoff, at approximately 08:40, the co-pilot called Bartlesville Radio and stated that the flight was having engine trouble, with an oil temperature over 100 degrees, and requested that the IFR flight plan be cancelled as they might return. At 08:45, the co-pilot again stated that they could not unfeather the propeller. Bartlesville's single 4,600-foot runway had patches of snow and ice while all runways at Tulsa Airport were clear, so the pilot decided to continue to Tulsa. Heading for Tulsa, the aircraft was seen to plunge to earth in a spin. Impact with the rolling terrain was on a heading of about 240 degrees, while the wings were about level, and while the nose-down angle was close to vertical. An explosion and intense fire ensued.

Probable Cause:

PROBABLE CAUSE: "The Board determines that the probable cause of this accident was loss of flying speed during single-engine flight for reasons undetermined. resulting in a spin to the ground."

Bronnen:
» CAB File No. 2-0053


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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 Bartlesville Airport, OK en Salt Lake City International Airport, UT bedraagt 1442 km (902 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s 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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