Accident
Last updated: 24 November 2014
Statuts:Enquête Officielle
Date:dimanche 24 septembre 1961
Heure:11:05
Type/Sous-type:Boeing 720-023B
Compagnie:American Airlines
Immatriculation: N7545A
Numéro de série: 18031/198
Année de Fabrication: 1961-03-29 (6 months)
Heures de vol:1223
Moteurs: 4 Pratt & Whitney JT3D
Equipage:victimes: 0 / à bord: 8
Passagers:victimes: 0 / à bord: 63
Total:victimes: 0 / à bord: 71
Dégats de l'appareil: Substantiels
Conséquences: Repaired
Lieu de l'accident:Boston-Logan International Airport, MA (BOS) (   Etats-Unis d'Amérique) show on map
Phase de vol: A l'atterrissage (LDG)
Nature:Transport de Passagers Nat.
Aéroport de départ:Chicago-O'Hare International Airport, IL (ORD/KORD), Etats-Unis d'Amérique
Aéroport de destination:Boston-Logan International Airport, MA (BOS/KBOS), Etats-Unis d'Amérique
Numéro de vol: 44
Détails:
American Flight 44 was a scheduled coast-to-coast flight from San Francisco to Boston with an intermediate stop at Chicago. The aircraft left O'Hare Airport at 09:18. Approaching the Boston area, the first officer flying the aircraft from the right seat prepared to make the instrument approach and landing. After radar contact was established near the Boston VOR, the approach controller reported the crew to expect a precision approach to runway 04R. The weather included "partial obscuration, measured three-hundred overcast, visibility one mile in fog, runway visual range more than six thousand". At 11:03 the crew switched frequencies to the PAR controller who talked them down. The airplane was a little fast on the approach and a little above the glide path. During the approach the runway visual range varied from more than 6,000 feet as reported to the crew, to as low as 2,200 feet. The fluctuations in visibility were caused by lines of fog which originated over the water area, then moved over the surface of the airport.
The aircraft first touched down 3,165 feet beyond the PAR touchdown point, which is 3,417 feet down the runway. This left the plane with only 3,438 feet of runway remaining. the aircraft ran off the end of the runway, turning to the right and came to rest in Winthrop Bay at a point approximately 420 feet beyond the end of the runway. The aircraft came to a stop in approximately 16 feet of water, its landing gear resting on the bottom of the bay.


PROBABLE CAUSE: "The captain's decision to land in variable weather conditions precluding adequate orientation relative to location along the runway. A contributing factor was the failure to provide the flight with information concerning the deterioration of runway visual range values."

Sources:


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Plan
Ce plan montre l'aéroport de départ ainsi que la supposé destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Chicago-O'Hare International Airport, IL et Boston-Logan International Airport, MA est de 1381 km (863 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 tels qui sont connus à ce jour.
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