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Accident
Last updated: 14 December 2017
Estado:Final
Fecha:viernes 8 marzo 1968
Hora:19:18
Tipo:Silhouette image of generic F27 model; specific model in this crash may look slightly different
Fairchild F-27
Operador:Air Manila International
Registración: PI-C871
Numéro de série: 19
Año de Construcción: 1958
Horas Totales de la Célula:21194
Tripulación:Fatalidades: 4 / Ocupantes: 4
Pasajeros:Fatalidades: 10 / Ocupantes: 10
Total:Fatalidades: 14 / Ocupantes: 14
Daños en la Aeronave: Destruido
Consecuencias: Written off (damaged beyond repair)
Ubicación:ca 2 km N off Ibajay (   Filipinas)
Fase: En ruta (ENR)
Naturaleza:Vuelo Doméstico Programado
Aeropuerto de Salida:Manila International Airport (MNL/RPLL), Filipinas
Aeropuerto de Llegada:Mactan Island-Chicago Naval Air Base (NOP/RPVM), Filipinas
Número de Vuelo: 507
Descripción:
Air Manila Flight 507 departed Manila (MNL) at 18:14 for a flight to Mactan at FL130. Thunderstorms existed along the route and the crew probably deviated some 10nm right of the airway to avoid the hazardous weather. It was believed that the aircraft suddenly flew into a hidden cumulonimbus that may have appeared as a minor build up, but which was actually a fully developed and active cumulonimbus. Air loads associated with a sudden pull up manoeuvre, combined with gust loading probably caused both horizontal stabilizers to fail. The right-hand outer wing then failed due to air loads generated by a high angle of attack. The F-27 then went out of control and the fuel, escaping from the ruptured fuel tanks, ignited. The aircraft was flown at 180 knots, 40 knots more than recommended turbulent air operating speed.
Parts of the aircraft fell into the sea, just offshore.

Probable Cause:

PROBABLE CAUSE: "In-flight structural failure due to air loads exceeding the design strength, while flying in a thunderstorm cell."

Fuentes:
» ICAO Circular 107-AN/81 (215-221)


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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 Manila International Airport to Mactan Island-Chicago Naval Air Base as the crow flies is 564 km (352 miles).
Accident location: Approximate; accuracy within a few kilometers.

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Fairchild F-27

  • 129 built
  • 11th loss
  • 8th accidente fatal
  • 5th worst accident (a la hora)
  • 11th worst accident (actualmente)
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 Filipinas
  • 19th worst accident (a la hora)
  • 33rd worst accident (actualmente)
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