Flugunfall 30 MAY 1961 einer Douglas DC-8-53 PH-DCL - Fonte da Telha
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Status:Accident investigation report completed and information captured
Datum:Dienstag 30 Mai 1961
Zeit:01:20 UTC
Flugzeugtyp:Silhouette image of generic DC85 model; specific model in this crash may look slightly different
Douglas DC-8-53
Betrieben durch:VIASA
Gemietet von :KLM Royal Dutch Airlines
Kennzeichen: PH-DCL
Werknummer: 45615/131
Baujahr: 1961
Betriebsstunden:209
Anzahl Zyklen der Zelle:82
Triebwerk: 4 Pratt & Whitney JT3D-1
Besatzung:Todesopfer: 14 / Insassen: 14
Fluggäste:Todesopfer: 47 / Insassen: 47
Gesamt:Todesopfer: 61 / Insassen: 61
Sachschaden: Zerstört
Konsequenzen: Written off (damaged beyond repair)
Unfallort:3 km (1.9 Meilen) WNW vom Land entfernt von Fonte da Telha (   Portugal)
Flugphase: Während des Fluges (ENR)
Betriebsart:Internationaler Linienflug
Flug von:Lisboa-Portela de Sacavém Airport (LIS/LPPT), Portugal
Flug nach:Santa Maria-Vila do Porto Airport, Azores (SMA/LPAZ), Portugal
Flugnummer: 897
Unfallbericht:
VIASA Flight 897 operated on the route Rome - Madrid (MAD) - Lisbon (LIS) - Santa Maria (SMA) - Caracas (CCS) when it landed at Lisbon at 00:06 UTC. Following a crew change and inspection by KLM maintenance personnel the flight was cleared for a runway 23 departure. The DC-8 took off at 01:15, heading to the Capiraca (LS) NDB. At 01:18:37 the flight advised that the cloud base was at 3700 ft and changed to the Lisbon area control frequency. It reported again at 01:19:25 to Lisbon Control that it was "over LS at 19 climbing through FL 60". This message ended with two quickly spoken sentences. This was the last radio contact with the flight. The DC-8 entered a spiral dive to the left during the last message, banking to the left to 90° within about 20 seconds and striking the water after another 15 seconds. During the last 15 seconds, the bank was overcorrected to the right. It struck the sea with a pitch angle of approximately 25° nose down, while it was probably banking 30° to the right.

Probable Cause:

PROBABLE CAUSE: "Notwithstanding a very thorough, time-consuming investigation, in which many authorities and experts co-operated, it was not possible to establish a probable cause of the accident."

The Netherlands, as state of registry, commented: "Though there are no direct indications in this respect, the Board regards it as possible that the accident was due to the pilot or pilots being misled by instrument failure, in particular of the artificial horizon, or to the pilot having been distracted, so that a serious deviation from the normal flight path was not discovered in time."

Accident investigation:

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Investigating agency: DGAC Portugal
Status: Investigation completed
Duration: 1 year and 9 months
Accident number: Final report
Download report: Final report

Informationsquelle:
» ICAO Circular 69-AN/61


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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 Lisboa-Portela de Sacavém Airport to Santa Maria-Vila do Porto Airport, Azores as the crow flies is 1410 km (881 miles).
Accident location: Exact; deduced from 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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