Incident Overview

Date: Tuesday 2 March 1971
Aircraft Type: Douglas C-47A-80-DL (DC-3)
Owner/operator: Transportes A‚reos Orientales – TAO
Registration Number: HC-ALC
Location: Pastaza-Shell Mera Airport (PTZ) – ÿ Ecuador
Phase of Flight: Take off
Status: Substantial, written off
Casualties: Fatalities: 0 / Occupants: 24
Component Affected: Aircraft Right UndercarriageAircraft Right Undercarriage
Category: Accident
An engine run-up resulted in a violent left engine vibration, leading to an aborted take-off. The aircraft overran the runway, passed through signal panels, and subsequently groundlooped. The right undercarriage failed, and the aircraft was overloaded by 1480 lbs. Due to the absence of a stopway during a similar emergency, the aircraft was unable to be stopped within the runway length.An engine run-up resulted in a violent left engine vibration, leading to an aborted take-off. The aircraft overran the runway, passed through signal panels, and subsequently groundlooped. The right undercarriage failed, and the aircraft was overloaded by 1480 lbs. Due to the absence of a stopway during a similar emergency, the aircraft was unable to be stopped within the runway length.

Description

After completing an engine run-up, take-off was commenced on runway 12. After a run of 600 m and reaching a speed of 68 mph the left engine vibrated violently and the take-off was aborted. The aircraft overran the end of the runway, passed through some signal panels and the pilot then groundlooped the aircraft. The right undercarriage failed. it was considered that the aircraft was overloaded by 1480 lbs. It was concluded that the excess weight and the aircraft speed at which the pilot decided to abandon take-off due to failure of the left engine were the main factors why the aircraft could not be stopped within the length of the runway; these factors were aggravated by the fact that the runway did not have a stopway for use during similar emergencies.

Primary Cause

Excessive weight and pilot decision to abandon take-off due to engine failure during a runway overrun.Excessive weight and pilot decision to abandon take-off due to engine failure during a runway overrun.

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