Descripción del Accidente ASN 24 JUN 1974 Grumman G-1159 Gulfstream II N720Q - Kline, SC
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Estado:Accident investigation report completed and information captured
Fecha:lunes 24 junio 1974
Hora:16:45
Tipo:Silhouette image of generic GLF2 model; specific model in this crash may look slightly different
Grumman G-1159 Gulfstream II
Operador:IBM
Registración: N720Q
Numéro de série: 58
Año de Construcción: 1969
Horas Totales de la Célula:3224
Motores: 2 Rolls-Royce Spey 511-8
Tripulación:Fatalidades: 3 / Ocupantes: 3
Pasajeros:Fatalidades: 0 / Ocupantes: 0
Total:Fatalidades: 3 / Ocupantes: 3
Daños en la Aeronave: Destruido
Consecuencias: Written off (damaged beyond repair)
Ubicación:cerca Kline, SC (   Estados Unidos de América)
Elevación del lugar del accidente: 83 m (272 feet) amsl
Fase: En ruta (ENR)
Naturaleza:Entrenamiento
Aeropuerto de Salida:Savannah International Airport, GA (SAV/KSAV), Estados Unidos de América
Aeropuerto de Llegada:Savannah International Airport, GA (SAV/KSAV), Estados Unidos de América
Descripción:
An electrical short circuit caused an unwanted extension of the ground and flight spoilers during a training flight. Control was lost; the aircraft made several 360 degree rolls and then dove into a swampy area.

Probable Cause:

PROBABLE CAUSE: "An unwanted extension of the ground and flight spoilers, which resulted in a loss of control at an altitude from which recovery could not be made. The ground spoilers probably deployed because of a hot electrical short in the spoiler extend circuitry. Whereas the spoilers probably deployed symetrically, the left ground spoiler actuator failed in flight and caused a loss of lateral control. The subsequent logs of pitch control was caused by the full nosedown elevator trim tab position and the high aircraft speed."

Accident investigation:

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Investigating agency: NTSB
Status: Investigation completed
Duration: 11 months
Accident number: NTSB-AAR-75-8
Download report: Final report

Fuentes:
» NTSB


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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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