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Accident description
Last updated: 24 July 2017
Status:Final
Date:Sunday 9 November 1958
Type:Martin PBM-5 Mariner
Operator:ARTOP - Aero-Topográfica
Registration: CS-THB
C/n / msn: 45409
First flight: 1944
Total airframe hrs:2240
Engines: 4 Pratt & Whitney R-2800-34
Crew:Fatalities: 6 / Occupants: 6
Passengers:Fatalities: 30 / Occupants: 30
Total:Fatalities: 36 / Occupants: 36
Airplane damage: Missing
Airplane fate: Presumed damaged beyond repair
Location:c 250 km SW off Lisbon, Portugal (   Atlantic Ocean)
Phase: En route (ENR)
Nature:Domestic Scheduled Passenger
Departure airport:Lisboa-Cabo Ruivo Seaplane Base, Portugal
Destination airport:Funchal Airport (FNC/LPFU), Portugal
Narrative:
The aircraft was missing on a flight from Lisbon to Madeira. In the last radio contact the crew radioed: "I am forced to land immediately". The flight had taken off at 12:23 and the final radio call was received at 13:21.

Probable Cause:

Cause: undetermined.

Accident investigation:
cover
investigating agency: DGAC Portugal
status: Final
number: final report
released:18 February 1959
duration: 101 days (3 months)
download report: final report

Sources:
» José Vilhena


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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-Cabo Ruivo Seaplane Base to Funchal Airport as the crow flies is 960 km (600 miles).

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Martin Mariner

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