Incident Overview

Date: Sunday 31 October 1954
Aircraft Type: Vickers 720 Viscount
Owner/operator: Trans Australia Airlines – TAA
Registration Number: VH-TVA
Location: Mangalore Airport, VIC – ÿ Australia
Phase of Flight: Take off
Status: Destroyed, written off
Casualties: Fatalities: 3 / Occupants: 8
Component Affected: Aircraft ? ViscountAircraft ? Viscount
Category: Accident
A Viscount aircraft, during a pilot conversion training flight, experienced a catastrophic accident after swinging off the runway to the right. The aircraft struck the ground approximately 2300 feet west of runway 22, resulting in destruction and fire. The accident was attributed to a pilot-in-command error ? taking the aircraft into the air at a speed below the minimum control speed during a ground run, exacerbated by a loss of directional control resulting from the pilot-in-command relinquishing wheel steering. Limited experience with this aircraft type contributed to the incident.A Viscount aircraft, during a pilot conversion training flight, experienced a catastrophic accident after swinging off the runway to the right. The aircraft struck the ground approximately 2300 feet west of runway 22, resulting in destruction and fire. The accident was attributed to a pilot-in-command error ? taking the aircraft into the air at a speed below the minimum control speed during a ground run, exacerbated by a loss of directional control resulting from the pilot-in-command relinquishing wheel steering. Limited experience with this aircraft type contributed to the incident.

Description

The Viscount was being used on a pilot conversion training flight. The pilots commenced a three-engine takeoff from Mangalore Airport, Australia. After running some 2000 feet, the aircraft swung off the runway to the right, became airborne and continued in a steeper turn to the right. This continued until the right hand wing tip struck the ground 2300 feet west of runway 22. The aircraft was destroyed by impact and fire. It was established that two non-surviving pilots may have survived if they had been wearing the a shoulder harness. PROBABLE CAUSE: “An error of judgement on the part of the pilot-in-command in that he took the aircraft into the air at a speed below the minimum control speed, following loss of directional control during the ground run. Some difficulty in maintaining directional control had been experienced during the takeoff run with the final loss probably occurred through nose wheel steering being relinquished as the pilot-in-command took over the controls. A factor probably contributing to this accident was the limited experience of the pilot-in-command on this type of aircraft.”

Primary Cause

Pilot-in-command error ? speed below minimum control speed during ground run, exacerbated by loss of directional control due to pilot-in-command relinquishing wheel steering.Pilot-in-command error ? speed below minimum control speed during ground run, exacerbated by loss of directional control due to pilot-in-command relinquishing wheel steering.

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