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Last updated: 19 October 2017
Fecha:lunes 7 junio 1971
Tipo:Silhouette image of generic CVLT model; specific model in this crash may look slightly different
Convair CV-580
Operador:Allegheny Airlines
Registración: N5832
Numéro de série: 384
Año de Construcción: 1956
Horas Totales de la Célula:33058
Motores: 2 Allison 501-D13
Tripulación:Fatalidades: 2 / Ocupantes: 3
Pasajeros:Fatalidades: 26 / Ocupantes: 28
Total:Fatalidades: 28 / Ocupantes: 31
Daños en la Aeronave: Anulado
Consecuencias: Written off (damaged beyond repair)
Ubicación:1,5 km (0.9 milles) S of New Haven Airport, CT (HVN) (   Estados Unidos de América)
Fase: Aproximación (APR)
Naturaleza:Vuelo Doméstico Programado
Aeropuerto de Salida:Groton-New London Airport, CT (GON/KGON), Estados Unidos de América
Aeropuerto de Llegada:New Haven Airport, CT (HVN/KHVN), Estados Unidos de América
Número de Vuelo: 485
The aircraft struck cottages, located 4890 feet short of runway 02, and crashed. The aircraft was on a non precision instrument approach.
The Convair was originally manufactured as a Convair CV-440 and converted to a Convair 580. The plane had flown 8406 hours since the conversion in September 1967.

Probable Cause:

PROBABLE CAUSE: "The captain's intentional descent below the prescribed minimum descent altitude under adverse weather conditions without adequate forward visibility or the crew's sighting of the runway environment. The captain disregarded advisories from his first officer that minimum descent altitude had been reached and that the airplane was continuing to descend at a normal descent rate and airspeed. The Board was unable to determine what motivated the captain to disregard prescribed operating procedures and altitude restrictions and finds it difficult to reconcile the actions he exhibited during the conduct of this flight."

Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 12 months
Accident number: NTSB/AAR-72-20
Download report: Final report

» ICAO Accident Digest Circular 118-AN/88 (165-186)

Subsiguiente / acciones de seguridad

NTSB issued 14 Safety Recommendations

Show all AD's and Safety Recommendations


photo of Convair CV-580 N5832
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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 Groton-New London Airport, CT to New Haven Airport, CT as the crow flies is 70 km (44 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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Convair CV-580

  • 182 built
  • 7th loss
  • 5th accidente fatal
  • 2nd worst accident (a la hora)
  • 3rd worst accident (actualmente)
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