Crash-aerien 04 JAN 2001 d'un Learjet 35 N435JL - Schenectady-County Airport, NY (SCH)
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Statuts:Accident investigation report completed and information captured
Date:jeudi 4 janvier 2001
Heure:15:47
Type/Sous-type:Silhouette image of generic LJ35 model; specific model in this crash may look slightly different
Learjet 35
Compagnie:Air Response North
Immatriculation: N435JL
Numéro de série: 35-018
Année de Fabrication: 1975
Heures de vol:16302
Moteurs: 2 Garrett TFE731
Equipage:victimes: 0 / à bord: 2
Passagers:victimes: 0 / à bord: 1
Total:victimes: 0 / à bord: 3
Dégats de l'appareil: Substantiels
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Schenectady-County Airport, NY (SCH) (   Etats-Unis d'Amérique)
Phase de vol: Au décollage (TOF)
Nature:Ambulance
Aéroport de départ:Schenectady-County Airport, NY (SCH/KSCH), Etats-Unis d'Amérique
Aéroport de destination:New York-La Guardia Airport, NY (LGA/KLGA), Etats-Unis d'Amérique
Détails:
A Learjet 35, N435JL, was substantially damaged during an aborted takeoff at the Schenectady-County Airport, NY (SCH). The certificated airline transport pilot, commercial pilot, and passenger were not injured. Visual meteorological conditions prevailed, and an IFR flight plan was filed for the air response medical flight to New York-La Guardia Airport, NY (LGA).
The captain stated that prior to departure the flight controls were tested, with no abnormalities noted, and the takeoff trim was set to the "middle of the takeoff range," without referring to any available pitch trim charts. During the takeoff roll on runway 28, the pilot attempted to rotate the airplane twice, and then aborted the takeoff halfway down the 4,840 foot long runway, because the controls "didn't feel right." The airplane traveled off the departure end of the runway and through a fence, and came to rest near a road. The pilot reported no particular malfunction with the airplane. Examination of the airplane revealed that the horizontal stabilizer was positioned at -4.6 degrees, the maximum nose down limit within the takeoff range. The horizontal stabilizer trim and elevator controls were checked, and moved freely through their full ranges of travel. According to the AFM TAKEOFF TRIM C.G. FUNCTION chart, a horizontal stabilizer trim setting of -7.2 was appropriate with the calculated C.G. of 20% MAC.

Probable Cause:

PROBABLE CAUSE: "The pilot's improper trim setting, which resulted in a runway overrun and impact with a fence."

Accident investigation:

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Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 8 months
Accident number: IAD01LA022
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 Schenectady-County Airport, NY et New York-La Guardia Airport, NY est de 229 km (143 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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