Incident Overview
Date: Sunday 14 April 1963
Aircraft Type: Vickers 759D Viscount
Owner/operator: Icelandair Flugflag Islands
Registration Number: TF-ISU
Location: 6 km W of Oslo-Fornebu Airport (FBU) –
ÿ Norway
Phase of Flight: Approach
Status: Destroyed, written off
Casualties: Fatalities: 12 / Occupants: 12
Component Affected: Aircraft control systems (specifically, the pilot’s control input and the aircraft’s stability).Aircraft control systems (specifically, the pilot’s control input and the aircraft’s stability).
Category: Accident

A Viscount aircraft crashed near Oslo, Norway, approximately 6 kilometers west of the runway 06. The accident occurred during approach to Fornebu, resulting in loss of control and inability to recover. Investigation suggests the pilot lost control at a low altitude, potentially due to ice formation on the stabilizer or propeller damage leading to a fine pitch. The Commission is still analyzing the exact cause, with a slight leaning towards the propellers overshooting the ground.A Viscount aircraft crashed near Oslo, Norway, approximately 6 kilometers west of the runway 06. The accident occurred during approach to Fornebu, resulting in loss of control and inability to recover. Investigation suggests the pilot lost control at a low altitude, potentially due to ice formation on the stabilizer or propeller damage leading to a fine pitch. The Commission is still analyzing the exact cause, with a slight leaning towards the propellers overshooting the ground.
Description
The Viscount, on a flight from Copenhagen to Reykjavik via Oslo and Bergen, crashed just 6 km West of the Oslo runway 06. PROBABLE CAUSE: “The accident to TF-ISU is assumed to have been caused by the fact that, during the approach to Fornebu, the pilot lost control of the aircraft at such a low height that recovery was not possible. From the evidence available, it has not been possible for the Commission to determine why this happened. There are possibilities, however, that the cause may have been that ice formed on the stabilizer or that the propellers went over to ground fine pitch. The Commission considers that the latter hypothesis is slightly more than the former.”
Primary Cause
Loss of control due to low altitude and ice formation on the stabilizer.Loss of control due to low altitude and ice formation on the stabilizer.Share on: