Descripción del Accidente ASN 11 DEC 1977 Lockheed P-3B Orion 153428 - El Hierro, Canary Islands
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Estado:Accident investigation report completed and information captured
Fecha:domingo 11 diciembre 1977
Hora:11:20
Tipo:Silhouette image of generic P3 model; specific model in this crash may look slightly different
Lockheed P-3B Orion
Operador:United States Navy
Registración: 153428
Numéro de série: 185-5225
Año de Construcción: 1967
Tripulación:Fatalidades: 13 / Ocupantes: 13
Pasajeros:Fatalidades: 0 / Ocupantes: 0
Total:Fatalidades: 13 / Ocupantes: 13
Daños en la Aeronave: Anulado
Consecuencias: Written off (damaged beyond repair)
Ubicación:El Hierro, Canary Islands (   España)
Fase: En ruta (ENR)
Naturaleza:Militar
Aeropuerto de Salida:Terceira-Lajes AFB, Azores (TER/LPLA), Portugal
Aeropuerto de Llegada:Terceira-Lajes AFB, Azores (TER/LPLA), Portugal
Descripción:
The P-3 Orion aircraft departed at 08:36 on a ship surveillance mission. Approximately two hours after takeoff the aircraft reported all systems essential to the mission were operating normally. No further radio contact was made. At 11:20 the aircraft struck a mountain on a small island named El Hierro, at an altitude of 2300 ft msl. The top of the mountain was at 5200 ft msl. Visibility at the crash site was 50 meters in rain. The aircraft impacted in level flight at 220 knots. All engines were operating, except for #1, which was shutdown for loiter.
The PPC, navigator, radar operator and flight engineer were at the NCO club until 02:00 local, consuming alcoholic beverages. The post mortem showed that the navigator had experienced a myocardial infarction.
The island was located inside the northwest corner of the assigned patrol area. It is very possible that the crew was unaware of the island.

Probable Cause:

PROBABLE CAUSE FACTORS:
Flight crew - violation of natops regarding alcohol consumption/crew rest prior to flight.
Supervisory/squadron - failure to implement an effective aircrew surveillance program.

CONTRIBUTORY FACTOR:
Flight crew complacency - nonadherence to sound navigation procedures.

POSSIBLE CAUSE FACTOR:
TSC briefing display omission of the three Canary Islands.
Weather conditions - fog and rain.

Fuentes:
» Brunswick Times Record December 12, 1977
» P-3 Orion Aircraft Location Report (P-3 Orion Research Group - The Netherlands)
» US Crashes 1950-2002 / Jan van Waarde
» US Navy and US Marine Corps Aircraft Serial Numbers and Bureau Numbers--1911 to Present / Joe Baugher
» VPNavy.org


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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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Lockheed P-3

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