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Last updated: 23 January 2022
Statuts:Enquête Officielle
Date:samedi 12 avril 1997
Heure:22:04 HST
Type/Sous-type:Silhouette image of generic DHC6 model; specific model in this crash may look slightly different
de Havilland Canada DHC-6 Twin Otter 300
Compagnie:Corporate Air
Immatriculation: N242CA
Numéro de série: 342
Année de Fabrication: 1972
Moteurs: 2 Pratt & Whitney Canada PT6A-27
Equipage:victimes: 0 / à bord: 1
Passagers:victimes: 0 / à bord: 0
Total:victimes: 0 / à bord: 1
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:117 km (73.1 milles) NE de Hilo, HI, USA (   Océan Pacifique)
Phase de vol: En vol (ENR)
Nature:Convoyage
Aéroport de départ:Oakland International Airport, CA (OAK/KOAK), Etats-Unis d'Amérique
Aéroport de destination:Honolulu International Airport, HI (HNL/PHNL), Etats-Unis d'Amérique
Détails:
The Twin Otter aircraft departed Oakland at 10:50 PST for a ferry flight to Honolulu. For this flight the aircraft had been equipped with four ferry fuel tanks in addition to the normal forward and aft internal aircraft tanks. The pilot stated that at 18:00 PST (7 hours and 10 minutes into the flight), the estimated time to fuel depletion was found to be 8 hours and 40 minutes, with a time to go to destination of 7 hours and 40 minutes. Three hours later, the pilot determined that he was fuel critical due to unforecast headwinds. He declared a low fuel emergency and changed his intended destination to Hilo, HI. He also requested Coast Guard assistance at that time. Approximately 4 hours later, the pilot elected to ditch under power rather than remain airborne until fuel depletion.

Probable Cause:

PROBABLE CAUSE: "The pilot's inadequate en route fuel consumption calculations, which led to his failure to recognize a deteriorating fuel duration versus time-to-go situation in a more timely way"

Sources:
» NTSB Identification: LAX97LA157
» Scramble 216


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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 Oakland International Airport, CA et Honolulu International Airport, HI est de 3848 km (2405 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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