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Accident
Last updated: 19 October 2017
Statuts:Enquête Officielle
Date:dimanche 5 mars 1967
Heure:02:56 UTC
Type/Sous-type:Douglas DC-8-33
Compagnie:Varig
Immatriculation: PP-PEA
Numéro de série: 45253/5
Année de Fabrication: 1959
Heures de vol:16775
Moteurs: 4 Pratt & Whitney JT4A-
Equipage:victimes: 1 / à bord: 19
Passagers:victimes: 50 / à bord: 71
Total:victimes: 51 / à bord: 90
Victimes au sol:victimes: 5
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Monrovia-Roberts International Airport (ROB) (   Libéria)
Phase de vol: En approche (APR)
Nature:Transport de Passagers Intern.
Aéroport de départ:Roma-Fiumicino Airport (FCO/LIRF), Italie
Aéroport de destination:Monrovia-Roberts International Airport (ROB/GLRB), Libéria
Numéro de vol: 837
Détails:
Varig Flight RG 837 departed Rome-Fiumicino Airport, Italy, at 21:08 hours GMT on a flight to Monrovia, Liberia. The flight was uneventful until the crew reported at FL45, five miles from the Roberts VOR. ATC then cleared the flight to descend further down to 3000 feet on the VOR and reported a QNH of 1009 mb. The QNH was read back correctly, but the crew did not mention the descent clearance. The pilot-in-command continued to the VOR at FL45 (4500 feet). After sighting the aerodrome runway lights from vertically overhead, the pilot informed the co-pilot that despite the fact that he had the runway completely in sight he would make an IFR/VOR procedure.
A VOR/Locator instrument let-down was commenced from 4500 feet over the VOR at an indicated airspeed of 210 slowing to 170 kt, descending at a rate of between 500 to 700 feet per minute until the aircraft arrived at a point inbound over the coastline at 1800 feet on a heading of 047- degrees with the gear down and 35-deg flaps for landing on runway 04. At this point the co-pilot reported: "Runway in sight a little to the left". During the approach from the coast to the airport, the pilot did not make any use of the DME.
After the procedure turn, the aircraft was on the correct VOR radial and a smooth approach was carried out during which the aircraft was flown manually. After the procedure turn, the co-pilot called each 100 feet of altitude and the speed and he checked the indication of the vertical speed indicators. At an altitude of about 1000 feet, flaps were put in the full down position and shortly thereafter, at an altitude of 700-800 feet, the aircraft entered some stratus and, further down, fog patches. When entering the stratus layer, the captain told the co-pilot that it was no longer necessary to report altitude and speed and was instructed to look outside and to report as soon as he could see the runway.
Over the FR locator beacon, the altitude was about 800 feet, whereas his correct altitude should have been 520 feet. He then increased his rate of descent to between 1200-1500 ft/min, by reduction of power and by pitching the nose of the aircraft down. About 15 seconds after passing FR the co-pilot reported runway in sight, saying also that the visibility was poor and that they were too low. Descent was continued until the DC-8 impacted the ground 6023 feet from the threshold of runway 04, 180 feet to the right of the runway extended centre line with the aircraft coming to rest after a ground slide of approximately 850 feet. The aircraft caught fire.

Probable Cause:

PROBABLE CAUSE: "The failure of the pilot-in-command to arrest in time the fast descent at a low altitude upon which he had erroneously decided, instead of executing a missed approach when he found himself too high over the locator beacon."

Sources:
» ICAO Circular 88-AN/74 Volume II (142-150)


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Plan
Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Roma-Fiumicino Airport et Monrovia-Roberts International Airport est de 4511 km (2819 miles).

Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.
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