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Last updated: 20 October 2020
Statuts:Enquête Officielle
Date:lundi 26 avril 2010
Heure:02:01
Type/Sous-type:Silhouette image of generic BE20 model; specific model in this crash may look slightly different
Beechcraft B200 King Air
Compagnie:Air Alizé
Immatriculation: F-OIAN
Numéro de série: BB-1220
Année de Fabrication: 2005
Heures de vol:8498
Moteurs: 2 Pratt & Whitney Canada PT6A-42
Equipage:victimes: 0 / à bord: 2
Passagers:victimes: 0 / à bord: 2
Total:victimes: 0 / à bord: 4
Dégats de l'appareil: Substantiels
Lieu de l'accident:Nadi International Airport (NAN) (   Iles Fidji)
Phase de vol: A l'atterrissage (LDG)
Nature:Convoyage
Aéroport de départ:Nouméa-Magenta Airport (GEA/NWWM), Nouvelle-Calédonie
Aéroport de destination:Nadi International Airport (NAN/NFFN), Iles Fidji
Détails:
During an ILS approach at night to runway 2 at Nadi, (Fiji, the no. 2 electrical system failed. A little later, during final approach, the aural warning for non-extension of landing gear sounded. The crew decided to continue the approach. On landing, the airplane exited the runway to the right and came to a stop leaning on the fuselage. Examination of the airplane showed that the landing gear was retracted with the landing gear doors open.
The landing on the fuselage resulted from an incomplete analysis by the crew of the consequences of the electrical failure and the warning that triggered during the final approach.
The airplane operated on a repositioning flight from New Caledonia to Wallis Island via Nadi, Fiji, in preparation for medevac flight.

Probable Cause:

Causes of the Accident:
At night in adverse meteorological conditions, the crew decided to continue with the approach and to land, while the landing gear was not locked in the down position due to the failure of the secondary electric circuit.
The origin of this failure was probably the increase in the number of operating cycles of the hydraulic power pack which delivers the hydraulic energy required to extend and retract the landing gear. This led to the failure of the diodes in the protective secondary circuit, which could not be checked in flight.
The decision to continue the approach resulted from incorrect comprehension of the electrical failure and the aural warning that sounded during the final approach. The conviction that the landing gear was locked down, associated with the meteorological conditions and the failure of the circuit-breakers to trip, did not prompt the crew to correctly assess the risk associated with the electrical failure.

Accident investigation:
cover
Investigating agency: BEA
Status: Investigation completed
Duration: 4 years and 3 months
Accident number: f-an100424
Download report: Final report

Sources:
» Fiji Times


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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 Nouméa-Magenta Airport et Nadi International Airport est de 1246 km (779 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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