Statuts: | Accident investigation report completed and information captured |
Date: | mercredi 13 août 1997 |
Heure: | 19:13 |
Type/Sous-type: | 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 / Ã bord: 1 |
Passagers: | victimes: 0 / Ã bord: 0 |
Total: | victimes: 0 / Ã 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)
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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
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Sources:
» NTSB
Photos
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.