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Accident
Last updated: 16 October 2017
Estado:Final
Fecha:jueves 1 octubre 1981
Hora:15:02
Tipo:Silhouette image of generic LJ24 model; specific model in this crash may look slightly different
Learjet 24
Operador:Sky Train Air
Registración: N44CJ
Numéro de série: 24-146
Año de Construcción: 1967
Horas Totales de la Célula:7412
Motores: 2 General Electric CJ610-4
Tripulación:Fatalidades: 2 / Ocupantes: 2
Pasajeros:Fatalidades: 1 / Ocupantes: 1
Total:Fatalidades: 3 / Ocupantes: 3
Daños en la Aeronave: Anulado
Consecuencias: Written off (damaged beyond repair)
Ubicación:4 km (2.5 milles) SW of Felt, OK (   Estados Unidos de América)
Fase: En ruta (ENR)
Naturaleza:Desconocido
Aeropuerto de Salida:Casper Airport, WY (CPR/KCPR), Estados Unidos de América
Aeropuerto de Llegada:McAllen-Miller International Airport, TX (MFE/KMFE), Estados Unidos de América
Descripción:
The aircraft departed Casper, WY at 13:57 following a refueling stop. The Learjet climbed to a altitude of FL450. Around 3 pm control was lost and the airplane crashed near Felt, OK.

Probable Cause:

PROBABLE CAUSE: "A loss of control, possibly initiated by an unexpected encounter with moderate to severe clear air turbulence, which caused the aircraft to depart the narrow flight envelope boundaries in which it was operating and from which recovery was not effected, the flightcrew's lack of adequate training and experience in the Learjet; and the aircraft's marginal controllability characteristics near and beyond the boundaries of its flight envelope. Contributing to the accident was the flightcrew's probable extension of the spoilers in an overspeed situation, a procedure that had been prescribed in the approved aircraft flight manual until 1 year before the accident."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 229 days (8 months)
Accident number: NTSB-AAR-82-4
Download report: Final report


Subsiguiente / acciones de seguridad

NTSB issued 19 Safety Recommendations

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Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Casper Airport, WY to McAllen-Miller International Airport, TX as the crow flies is 1991 km (1244 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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