Accident
Last updated: 23 April 2014
Estado:Final
Fecha:martes 3 febrero 1959
Hora:23:56
Tipo:Lockheed L-188A Electra
Operador:American Airlines
Registración: N6101A
Numéro de série: 1015
Año de Construcción: 1958
Horas Totales de la Célula:302
Motores: 4 Allison 501-D13
Tripulación:Fatalidades: 2 / Ocupantes: 5
Pasajeros:Fatalidades: 63 / Ocupantes: 68
Total:Fatalidades: 65 / Ocupantes: 73
Daños en la Aeronave: Anulado
Consecuencias: Written off (damaged beyond repair)
Ubicación:1,5 km (0.9 milles) NE de la costa de New York-La Guardia Airport, NY (LGA) (   Estados Unidos de América) show on map
Fase: Aproximación (APR)
Naturaleza:Vuelo Doméstico Programado
Aeropuerto de Salida:Chicago-O'Hare International Airport, IL (ORD/KORD), Estados Unidos de América
Aeropuerto de Llegada:New York-La Guardia Airport, NY (LGA/KLGA), Estados Unidos de América
Número de Vuelo: 320
Descripción:
The crew of Flight AA320 were carrying out an ILS backcourse approach to New York-La Guardia (LGA) runway 22 with autopilot engaged. The Lockheed Electra aircraft descended until it struck the water some 5000 feet short of the runway and 600 feet to the right of the extended centreline. Ground speed on impact was 150mph and undercarriage and flaps were extended. The wreckage sank in 10m deep East River. Weather at the time of the accident was marginal with a 300-400 feet ceiling, 2 miles visibility in light rain and fog with a 6 knots SSW wind.

PROBABLE CAUSE: "The Board determines the probable cause of this accident was premature descent below landing minimums which was the result of preoccupation of the crew on particular aspects of the aircraft and its environment to the neglect of essential flight instrument references for attitude and height above the approach surface.
Contributing factors were:
1. Limited experience of the crew with the aircraft type;
2. Faulty approach technique in which the autopilot was used in the heading mode to or almost to the surface;
3. Erroneous setting of the captain's altimeter;
4. Marginal weather in the approach area;
5. Possible misinterpretation of altimeter and rate of descent indicator; and
6. Sensory illusion with respect to height and attitude resulting from visual reference to the few lights existing in the approach area."

Fuentes:
» ICAO Accident Digest Circular 62-AN/57 (87-98)


Subsiguiente / acciones de seguridad

CAB issued 2 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 Chicago-O'Hare International Airport, IL to New York-La Guardia Airport, NY as the crow flies is 1169 km (731 miles).

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Lockheed L-188

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