Incident Overview
Date: Tuesday 23 April 1946
Aircraft Type: Vickers 491 Viking 1A
Owner/operator: Vickers-Armstrongs Ltd
Registration Number: G-AGOK
Location: Effingham –
ÿ United Kingdom
Phase of Flight: Manoeuvring (airshow, firefighting, ag.ops.)
Status: Destroyed, written off
Casualties: Fatalities: 0 / Occupants: 4
Component Affected: The aircraft’s engine systems, specifically the port and starboard power plants.The aircraft’s engine systems, specifically the port and starboard power plants.
Category: Accident
A Viking aircraft experienced a critical failure during a test flight, resulting in a forced belly landing. The engine failure, triggered by a power plant failure and a lack of restart capability, led to the complete loss of power. The incident highlights a critical failure in the aircraft’s power system.A Viking aircraft experienced a critical failure during a test flight, resulting in a forced belly landing. The engine failure, triggered by a power plant failure and a lack of restart capability, led to the complete loss of power. The incident highlights a critical failure in the aircraft’s power system.
Description
The Viking aircraft took off from Wisley Airfield at 17:05 for a test flight regarding single engine performance for the Certificate of Airworthiness. It climbed to 1000 feet. After 5 minutes the no. 2 engine was stopped and the propeller feathered. A steady 150-200 feet/min was started. After 4 minutes the no. 1 engine cut out, came on again and cut out completely. The no. 1 engine could not be restarted in time and a forced belly landing was made. PROBABLE CAUSE: “The sudden failure of the port power plant coupled with the inability to restart the starboard engine in the height available. The reason for the power plant failure cannot be definitely stated, but was almost certainly due to the cutting off of the fuel supply.”
Primary Cause
Sudden failure of the port power plant coupled with the inability to restart the starboard engine in the height available.Sudden failure of the port power plant coupled with the inability to restart the starboard engine in the height available.Share on:
