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Last updated: 19 September 2021
Statuts:Enquête Officielle
Date:mercredi 29 août 2001
Heure:19:00 ADT
Type/Sous-type:Silhouette image of generic DHC4 model; specific model in this crash may look slightly different
de Havilland Canada C-7A Caribou (DHC-4)
Compagnie:Greatland Air Cargo
Immatriculation: N2225C
Numéro de série: 215
Année de Fabrication: 1964
Equipage:victimes: 0 / à bord: 2
Passagers:victimes: 0 / à bord: 0
Total:victimes: 0 / à bord: 2
Dégats de l'appareil: Substantiels
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Port Alsworth Airport, AK (PTA) (   Etats-Unis d'Amérique)
Phase de vol: A l'atterrissage (LDG)
Nature:Convoyage
Aéroport de départ:Iliamna Airport, AK (ILI/PAIL), Etats-Unis d'Amérique
Aéroport de destination:Port Alsworth Airport, AK (PTA), Etats-Unis d'Amérique
Détails:
The Caribou was on a positioning flight to Port Alsworth to pick up cargo. The airplane was configured for landing with 40 degrees of flaps. During the landing approach, variations in indicated airspeed and ground speed indicated windshear conditions. About 100 to 200 feet above the ground, the airplane encountered a downdraft and began to drift to the right of the runway centerline. The captain increased engine power and applied full left aileron and rudder, but could not gain directional or pitch control of the airplane. The right wing struck trees, short of the runway threshold, increasing the airplane's right yaw. As the airplane neared the ground, the captain pulled the engine throttles off. The airplane struck the ground with the right main landing gear and right front portion of the fuselage. The airplane then pivoted to the right, 180 degrees from the approach heading.

Probable Cause:

PROBABLE CAUSE: "The captain's failure to maintain the proper glidepath, and improper short field landing procedures. Factors in the accident were a downdraft, and the captain's inadequate evaluation of the weather conditions."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 279 days (9 months)
Accident number: ANC01LA129
Download report: Summary report

Sources:
» NTSB


Photos

photo of C-7A-Caribou-HR-ALY
accident date: 29-08-2001
type: de Havilland Canada C-7A Caribou (DHC-4)
registration: HR-ALY
 

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 Iliamna Airport, AK et Port Alsworth Airport, AK est de 60 km (37 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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