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Accident
Last updated: 23 October 2017
Estado:Final
Fecha:domingo 5 marzo 1967
Hora:20:07
Tipo:Silhouette image of generic CVLT model; specific model in this crash may look slightly different
Convair CV-580
Operador:Lake Central Airlines
Registración: N73130
Numéro de série: 23
Año de Construcción: 1952
Horas Totales de la Célula:16216
Motores: 2 Allison 501-D13D
Tripulación:Fatalidades: 3 / Ocupantes: 3
Pasajeros:Fatalidades: 35 / Ocupantes: 35
Total:Fatalidades: 38 / Ocupantes: 38
Daños en la Aeronave: Anulado
Consecuencias: Written off (damaged beyond repair)
Ubicación:3 km (1.9 milles) SE of Marseilles, OH (   Estados Unidos de América)
Fase: En ruta (ENR)
Naturaleza:Vuelo Doméstico Programado
Aeropuerto de Salida:Columbus-Port Columbus International Airport, OH (CMH/KCMH), Estados Unidos de América
Aeropuerto de Llegada:Toledo-Express Airport, OH (TOL/KTOL), Estados Unidos de América
Número de Vuelo: 527
Descripción:
Lake Central Airlines Flight 527 departed Chicago, IL for a flight to Detroit, MI with intermediate stops at Lafayette, IN, Cincinnati, OH, Columbus, IN and Toledo, OH. The aircraft arrived at Columbus at 19:35 and took off for Toledo 17 minutes later. About 20:05 the flight was cleared from its assigned cruising altitude of 10,000 feet to descend to 6,000 feet and report leaving 8,000 feet and 7,000 feet. Shortly after commencing the descent, all four prop blades on the no. 2 engines separated. The no. 2 prop blade penetrated the fuselage. While yawing to the right, the fuselage failed along the line of penetrations and the Convair crashed.
When the torque cylinder failed, prop pressure oil was lost, causing the blades to move to low pitch at a rate too rapid for the prop pitch lock to operate effectively. The prop oversped, causing the blades to separate in overstress.

Probable Cause:

PROBABLE CAUSE: "The failure of the right propeller due to the omission of the torque piston nitriding process during manufacture, and the failure of manufacturing quality control to detect the omission."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 12 months
Accident number: NTSB File 1-0001
Download report: Final report


Subsiguiente / acciones de seguridad

NTSB issued 3 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 Columbus-Port Columbus International Airport, OH to Toledo-Express Airport, OH as the crow flies is 191 km (120 miles).
Accident location: Exact; as reported in the official accident report.

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
  • 2nd loss
  • The first accidente fatal
  • The worst accident (a la hora)
  • 2nd worst accident (actualmente)
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 Estados Unidos de América
  • 50th worst accident (a la hora)
  • 89th worst accident (actualmente)
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