Accident
Last updated: 21 August 2014
Status:Definitief
Datum:vrijdag 15 december 1989
Tijd:11:48
Type:Silhouette image of generic B744 model; specific model in this crash may look slightly different
Boeing 747-406
Luchtvaartmaatschappij:KLM Royal Dutch Airlines
Registratie: PH-BFC
Constructienummer: 23982/735
Bouwjaar: 1989-06-30 (6 months)
Aantal vlieguren:7050
Motoren: 4 General Electric CF6-80C2B1F
Bemanning:slachtoffers: 0 / inzittenden: 14
Passagiers:slachtoffers: 0 / inzittenden: 231
Totaal:slachtoffers: 0 / inzittenden: 245
Schade: Groot
Gevolgen: Repaired
Plaats:nabij Anchorage, AK (   Verenigde Staten)
Fase: Kruisvlucht (ENR)
Soort vlucht:Internationale lijnvlucht
Vliegveld van vertrek:Amsterdam-Schiphol International Airport (AMS/EHAM), Nederland
Vliegveld van aankomst:Anchorage International Airport, AK (ANC/PANC), Verenigde Staten
Vluchtnummer: 867
Beschrijving:
At FL250 the aircraft flew into a normal looking cloud, which turned out to be a volcanic ash cloud (the result of an eruption of Mount Redoubt). Power was added to climb out of the cloud. About 10-15 seconds later all 4 engines failed and the standby electrical system failed. The crew were able to restart the engines after numerous attempts. The no. 1 and 2 engines were relit while descending through FL130 and the remaining 2 engines were relit at FL110. The aircraft landed safely at Anchorage, substantially damaged by the in-flight blasting by volcanic ash. The windshields were damaged, as were internal aircraft systems, avionics and electronics.

PROBABLE CAUSE: "Inadvertent encounter with volcanic ash cloud, which resulted in damage from foreign material (foreign object) and subsequent compressor stalling of all engines. A factor related to the accident was: the lack of available information about the ash cloud to all personnel involved."

Bronnen:
» NTSB


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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 Amsterdam-Schiphol International Airport en Anchorage International Airport, AK bedraagt 7147 km (4467 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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