Crash-aerien 13 AUG 1997 d'un Beechcraft 1900C N3172A - Seattle/Tacoma International Airport, WA (SEA)
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Statuts:Accident investigation report completed and information captured
Date:mercredi 13 août 1997
Heure:19:13
Type/Sous-type:Silhouette image of generic B190 model; specific model in this crash may look slightly different
Beechcraft 1900C
Compagnie:Ameriflight
Immatriculation: N3172A
Numéro de série: UB-47
Année de Fabrication: 1985
Heures de vol:23892
Moteurs: 2 Pratt & Whitney Canada PT6A-65B
Equipage:victimes: 0 / à bord: 1
Passagers:victimes: 0 / à bord: 0
Total:victimes: 0 / à bord: 1
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Seattle/Tacoma International Airport, WA (SEA) (   Etats-Unis d'Amérique)
Élévation des lieux de l'accident: 132 m (433 feet) amsl
Phase de vol: A l'atterrissage (LDG)
Nature:Cargo
Aéroport de départ:Portland International Airport, OR (PDX/KPDX), Etats-Unis d'Amérique
Aéroport de destination:Seattle/Tacoma International Airport, WA (SEA/KSEA), Etats-Unis d'Amérique
Numéro de vol: 262
Détails:
When the pilot initiated full flaps for landing approaching the threshold of runway 34L at Seattle, the aircraft's airspeed began to decay rapidly and a high sink rate developed as the aircraft entered into a stall/mush condition. The aircraft then landed hard, overloading the nose and left-main landing gear which collapsed. A post-impact fuel system leak during the ground slide led to a post-crash fire.

Probable Cause:

PROBABLE CAUSE: "A stall/mush condition resulting from an aft center of gravity which was inaccurately provided to the pilot-in-command by contractual cargo-loading personnel. Additional causes were overloading of the aircraft's landing gear and fuel leakage resulting in a post-crash fire. Factors contributing to the accident were the pilot's improper lowering of flaps in an aft CG situation and the inadequate company procedures for cargo loading."

Accident investigation:

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Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 10 months
Accident number: SEA97FA188
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 Portland International Airport, OR et Seattle/Tacoma International Airport, WA est de 207 km (129 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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