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Last updated: 30 April 2017
Statuts:Enquête Officielle
Date:vendredi 23 juin 1967
Type/Sous-type:Silhouette image of generic BA11 model; specific model in this crash may look slightly different
BAC One-Eleven 204AF
Compagnie:Mohawk Airlines
Immatriculation: N1116J
Numéro de série: 098
Année de Fabrication: 1966
Heures de vol:2246
Moteurs: 2 Rolls-Royce Spey 506-14
Equipage:victimes: 4 / à bord: 4
Passagers:victimes: 30 / à bord: 30
Total:victimes: 34 / à bord: 34
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:1,6 km (1 milles) E of Blossburg, PA (   Etats-Unis d'Amérique)
Phase de vol: En vol (ENR)
Nature:Transport de Passagers Nat.
Aéroport de départ:Elmira Regional Airport, NY (ELM/KELM), Etats-Unis d'Amérique
Aéroport de destination:Washington-National Airport, DC (DCA/KDCA), Etats-Unis d'Amérique
Numéro de vol: 40
Mohawk Flight 40 took off from Elmira at 14:39 EDT for a flight to Washington, DC. At 14:44 the aircraft was cleared to climb to FL160. Eyewitnesses observed the aircraft a little later near Blossburg when large sections of the tail separated from the aircraft in flight, after which fire and smoke emitted from the tail as the aircraft dove into the ground.

Probable Cause:

PROBABLE CAUSE: "The loss of integrity of empennage pitch control systems due to a destructive in-flight fire which originated in the airframe plenum chamber, fueled by hydraulic fluid, progressed up into the vertical tail fin. The fire resulted from engine bleed air flowing back through the malfunctioning nonreturn valve and an open air delivery valve, through the auxiliary power unit in a reverse direction, and exiting into the plenum chamber at temperatures sufficiently high to cause the acoustics linings to ignite."

Accident investigation:
investigating agency: National Transport Safety Bureau (NTSB) - United States of America
status: Final
number: NTSB File No.1-0004
released:18 April 1968
duration: 300 days (10 months)
download report: Mohawk Airlines, Inc., BAC 1-11, N1116J, near Blossburg, Pennsylvania, June 23, 1967 (NTSB File No.1-0004)


Opérations de secours

FAA issued 1 Airworthiness Directive
NTSB issued 3 Safety Recommendations

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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 Elmira Regional Airport, NY et Washington-National Airport, DC est de 365 km (228 miles).

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BAC One-Eleven

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