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Last updated: 22 November 2019
Estado:Final
Fecha:miércoles 5 marzo 1969
Hora:17:38
Tipo:Silhouette image of generic HERN model; specific model in this crash may look slightly different
de Havilland DH-114 Heron 2D
Operador:Prinair
Registración: N563PR
Numéro de série: 14125
Año de Construcción: 1967
Horas Totales de la Célula:4167
Motores: 4 de Havilland Gipsy Queen 30-2
Tripulación:Fatalidades: 2 / Ocupantes: 2
Pasajeros:Fatalidades: 17 / Ocupantes: 17
Total:Fatalidades: 19 / Ocupantes: 19
Daños en la Aeronave: Anulado
Consecuencias: Written off (damaged beyond repair)
Ubicación:24 km (15 milles) SE of San Juan (   Puerto Rico)
Fase: Aproximación (APR)
Naturaleza:Vuelo Doméstico Programado
Aeropuerto de Salida:Saint Thomas Airport (STT/TIST), Islas Vírgenes Americanas
Aeropuerto de Llegada:San Juan-Isla Verde International Airport (SJU/TJSJ), Puerto Rico
Número de Vuelo: 277
Descripción:
Prinair flight 277 departed Saint Thomas at 17:15 for an IFR flight to San Juan. At 17:32, the flight contacted San Juan Approach Control and advised that the flight was maintaining 4,000 feet. The trainee approach controller replied:"Prinair two seven seven San Juan Approach Control radar contact three miles east of Isla Verde fly a heading of two five zero for a vector to ILS final maintain four thousand." Actually the flight was 3 miles east of the Fajardo intersection instead of the Isla Verde intersection which is located about 10 miles west of the Fajardo intersection. One minute later the Heron was cleared to descend to 3,000 feet. At 17:38, after being vectored for a runway 07 approach, the airplane contacted trees and crashed, coming to rest near the top of a knoll in the Sierra de Luquillo mountains at an elevation of about 2400 feet (731 m).

The construction number of this aircraft, 14125, was also reported for DH-114 Heron N575PR that crashed on 24 July 1979.

Probable Cause:

PROBABLE CAUSE: "The vectoring of the aircraft into mountainous terrain, under IFR conditions, without adequate obstruction clearance altitude by a controller who, for reasons beyond his control, was performing beyond the safe limits of his performance capability and without adequate supervision."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 2 months
Accident number: NTSB/AAR-70-09
Download report: Final report


Subsiguiente / acciones de seguridad

NTSB 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 Saint Thomas Airport to San Juan-Isla Verde International Airport as the crow flies is 108 km (68 miles).
Accident location: Global; accuracy within tens or hundreds of kilometers.

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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DH-114 Heron

  • 149 built
  • 25th loss
  • 13th accidente fatal
  • The worst accident
» safety profile

 Puerto Rico
  • 4th worst accident
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