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Last updated: 18 November 2019
Statuts:Enquête Officielle
Date:samedi 28 décembre 2002
Heure:12:30
Type/Sous-type:Silhouette image of generic DHC3 model; specific model in this crash may look slightly different
de Havilland Canada DHC-3 Otter
Compagnie:Grasshopper Aviation
Immatriculation: N3904
Numéro de série: 54
Année de Fabrication: 1954
Heures de vol:16437
Moteurs: 1 Pratt & Whitney R-1340-59
Equipage:victimes: 0 / à bord: 1
Passagers:victimes: 0 / à bord: 1
Total:victimes: 0 / à bord: 2
Dégats de l'appareil: Substantiels
Conséquences: Repaired
Lieu de l'accident:56 km (35 milles) E of Nikolai, AK (   Etats-Unis d'Amérique)
Phase de vol: En vol (ENR)
Nature:Convoyage
Aéroport de départ:Nikolai Airport, AK (NIB/PAFS), Etats-Unis d'Amérique
Aéroport de destination:Wasilla Airport, AK (WWA/PAWS), Etats-Unis d'Amérique
Détails:
The airplane climbed to about 800 feet above the ground and the airspeed increased to about 55 knots, the pilot heard a very loud bang, followed by a loud rattling noise. He said that as he was attempting to turn the airplane around and return to the departure airstrip, he experienced considerable difficulty in maintaining longitudinal directional control using the airplane's rudder pedals. Using a combination of aileron control, and the remaining amount of rudder control, he was able to maneuver the airplane for an easterly landing on the airstrip. The pilot said that as the airplane passed over the approach end of the airstrip, the airplane drifted to the right, and he initiated a go-around. The airplane subsequently collided with a stand of trees on the south side of the airstrip, and sustained substantial damage to the wings, fuselage, and empennage.

Probable Cause:

PROBABLE CAUSE: "An improper and undocumented major repair of the elevator torque tube support assembly by an unknown person, which resulted in an in-flight disconnection of the airplane's right elevator, and a jammed rudder. A factor associated with the accident is the inadequate inspection of the airplane by company maintenance personnel."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 2 months
Accident number: ANC03LA021
Download report: Summary report

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 Nikolai Airport, AK et Wasilla Airport, AK est de 294 km (184 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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