Aircraft accident at Thysville Airfield

No fatalities • Thysville, Democratic Republic of Congo • Takeoff (climb)

A twin-engine aircraft experienced a runway excursion and subsequent fire during takeoff from Thysville Airfield, resulting in no fatalities.

What happened

A flight originating from Leopoldville, destined for Angola, was operating with a crew of three—consisting of a pilot, a navigator, and a mechanic—along with one passenger. During the transit, the aircraft encountered unfavorable weather conditions. Due to the absence of a radiocompass and radio communication equipment, the pilot elected to divert to Thysville Airfield (present-day Mbanza-Ngungu).

Following a refueling stop, the twin engine airplane attempted takeoff from a grass runway measuring 593 meters in length. As the aircraft accelerated, it drifted off the runway into tall vegetation, which caused the right wheel to separate from the landing gear. Despite this mechanical failure, the plane reached a speed of 80 mph before the airspeed dropped to 60 mph. The pilot initiated a continuous left turn and attempted an emergency descent approximately 4 km southwest of the airfield. Upon coming to a stop, the aircraft caught fire and was completely destroyed. All four occupants managed to evacuate the wreckage uninjured.

Findings

While investigators could not reach a definitive conclusion regarding the accident, two primary theories were considered. It is possible that the aircraft was exceeding its maximum weight capacity, or alternatively, that the engines suffered from insufficient power output because of the use of 60/120 menasol, a fuel type commonly utilized in portable stoves.

Probable cause

The exact cause remains undetermined, though investigators considered potential overloading or engine power loss due to improper fuel usage.

Frequently asked questions

What happened in the 1951-06-05 De Havilland DH.89 Dragon Rapide accident near Thysville, Democratic Republic of Congo?

A twin-engine aircraft experienced a runway excursion and subsequent fire during takeoff from Thysville Airfield, resulting in no fatalities.

Were there any fatalities in the 1951-06-05 De Havilland DH.89 Dragon Rapide accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 1951-06-05 involved a De Havilland DH.89 Dragon Rapide, registration ZS-ATV, operated by Aircraft Operating Company, at Thysville, Democratic Republic of Congo.

What was the probable cause of the accident?

The exact cause remains undetermined, though investigators considered potential overloading or engine power loss due to improper fuel usage.

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