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Accident
Last updated: 17 October 2017
Statuts:Enquête Officielle
Date:dimanche 9 juillet 1978
Heure:17:30
Type/Sous-type:Silhouette image of generic BA11 model; specific model in this crash may look slightly different
BAC One-Eleven 203AE
Compagnie:Allegheny Airlines
Immatriculation: N1550
Numéro de série: 044
Année de Fabrication: 1965
Heures de vol:33693
Cycles:48215
Moteurs: 2 Rolls-Royce Spey 506-14D
Equipage:victimes: 0 / à bord: 4
Passagers:victimes: 0 / à bord: 73
Total:victimes: 0 / à bord: 77
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Rochester-Monroe County Airport, NY (ROC) (   Etats-Unis d'Amérique)
Phase de vol: A l'atterrissage (LDG)
Nature:Transport de Passagers Nat.
Aéroport de départ:Boston-Logan International Airport, MA (BOS/KBOS), Etats-Unis d'Amérique
Aéroport de destination:Rochester-Monroe County Airport, NY (ROC/KROC), Etats-Unis d'Amérique
Numéro de vol: 453
Détails:
The 1-11, on a precision approach to runway 28, passed over the threshold at 184 knots (61 knots above Vref!) and touched down nosewheel first, 2540 feet down the 5500 feet runway. The aircraft touched down at a speed of approx. 163 knots (40-45 knots above normal touchdown speed), overran the runway, crossed a drainage ditch and came to rest 728 feet past the end of the runway.

Probable Cause:

PROBABLE CAUSE: "The captain's lack of awareness of airspeed, vertical speed, and aircraft performance throughout an ILS approach and landing in visual meteorological conditions which resulted in his landing the aircraft at an excessively high speed and with insufficient runway remaining for stopping the aircraft, but with sufficient aircraft performance capability to reject the landing well after touchdown. Contributing to the accident was the first officer's failure to provide required callouts which might have alerted the captain to the airspeed and sink rate deviations. The Safety Board was unable to determine the reasons for the captain's lack of awareness or the first officer's failure to provide required callouts."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 214 days (7 months)
Accident number: NTSB/AAR-79-02
Download report: Final report

Sources:
» Flight International 10.01.1979 (718)
» NTSB-AAR-79-2


Opérations de secours

NTSB issued 1 Safety Recommendation

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Photos

photo of BAC One-Eleven 203AE N1550
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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 Boston-Logan International Airport, MA et Rochester-Monroe County Airport, NY est de 547 km (342 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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