Incident Overview

Date: Saturday 20 June 1964
Aircraft Type: Curtiss C-46D-10-CU Commando
Owner/operator: Civil Air Transport
Registration Number: B-908
Location: San-Chiao – ÿ Taiwan
Phase of Flight: Initial climb
Status: Destroyed, written off
Casualties: Fatalities: 57 / Occupants: 57
Component Affected: No specific component is identified as directly affected. The crash occurred on the aircraft’s wings, fuselage, and nose.No specific component is identified as directly affected. The crash occurred on the aircraft’s wings, fuselage, and nose.
Category: Accident
A no. 1 engine oversped shortly after takeoff from Taichung, leading to a left wing low and a steep nose low attitude crash. The pilot initiated an emergency return to the Taichung Airport or nearby military air base, resulting in a ground impact due to the overspeeding engine. A chain of mountains and Shui-Nan Airport lay approximately 5 miles west and 6 miles south-southwest respectively.A no. 1 engine oversped shortly after takeoff from Taichung, leading to a left wing low and a steep nose low attitude crash. The pilot initiated an emergency return to the Taichung Airport or nearby military air base, resulting in a ground impact due to the overspeeding engine. A chain of mountains and Shui-Nan Airport lay approximately 5 miles west and 6 miles south-southwest respectively.

Description

Shortly after takeoff from Taichung, the no. 1 engine oversped. A left turn was initiated in order to make an emergency return to the Taichung Airport or nearby military air base. The pilot lost control and the aircraft struck the ground in a left wing low and a comparatively steep nose low attitude. PROBABLE CAUSE: “About 5 miles west of the accident site was Kung-Kuan Military Air Base. Six miles south-southwest was Shui-Nan Airport from where the aircraft took off. On the right side of the flight pattern was a chain of mountains. It was concluded that, when the pilot found that the left engine was overspeeding, he made an abrupt left turn to land at Kung-Kuan Military Air Base or return to Shui-Nan Airport. During the turn he lost control of the aircraft, which crashed to the ground.”

Primary Cause

Overspeeding of the no. 1 engine.Overspeeding of the no. 1 engine.

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