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Accident
Last updated: 14 December 2017
Statuts:Enquête Officielle
Date:mercredi 8 juin 1983
Heure:13:55
Type/Sous-type:Silhouette image of generic L188 model; specific model in this crash may look slightly different
Lockheed L-188C Electra
Compagnie:Reeve Aleutian Airways
Immatriculation: N1968R
Numéro de série: 2007
Année de Fabrication: 1959-11-19 (23 years 7 months)
Heures de vol:32994
Moteurs: 4 Allison 501-D13
Equipage:victimes: 0 / à bord: 5
Passagers:victimes: 0 / à bord: 10
Total:victimes: 0 / à bord: 15
Dégats de l'appareil: Substantiels
Conséquences: Repaired
Lieu de l'accident:près de Cold Bay Airport, AK (CDB) (   Etats-Unis d'Amérique)
Phase de vol: En vol (ENR)
Nature:Transport de Passagers Nat.
Aéroport de départ:Cold Bay Airport, AK (CDB/PACD), Etats-Unis d'Amérique
Aéroport de destination:Seattle/Tacoma International Airport, WA (SEA/KSEA), Etats-Unis d'Amérique
Numéro de vol:8
Détails:
During a cruise climb, the aircrew noted an unusual vibration; however, attempts to isolate the vibration were unsuccessful. While climbing from FL190 to FL250, the flight engineer went aft to observe the engines & props, but noted nothing unusual. A flight attendant went forward to advise the captain that nothing was observed, when the vibration increased in intensity. As she left the cockpit, she peered out the right window and saw the no. 4 prop separate and strike the aircraft. This caused major damage to the lower fuselage and resulted in decompression of the cabin. The flight controls became jammed and the engines would not respond to throttle movement. The autopilot was used for minimal control and the flight crew were able to divert to Anchorage, AK. They were able to climb and descend by retracting and extending the landing gear with the no. 2 eng shut down. The aircraft was landed safety and the engines were shut down to decelerate. The exact cause of the prop separation was not determined since it fell in the ocean during the occurrence.

Probable Cause:

PROBABLE CAUSE: "Propeller system/accessories..undetermined."

Sources:
» NTSB


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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 Cold Bay Airport, AK et Seattle/Tacoma International Airport, WA est de 2870 km (1794 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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