On May 8, 1930, an Avro 616 Avian IVM (registration CF-CAJ) operated by Ottawa Flying Club was involved in an aviation accident near Ottawa-Macdonald-Cartier, Canada during takeoff. No fatalities were reported. Investigators recorded the probable cause as: The rudder bar support failed during the initial climb, causing the rudder to jam and rendering the aircraft uncontrollable. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 2 related events involving the same aircraft type or operator are linked below.
Aircraft crashed into a field shortly after takeoff from Ottawa Airport due to a rudder jam. The crew ejected safely, resulting in no injuries.
What happened
The incident occurred shortly after the aircraft departed Ottawa Airport. During the initial climb phase, the rudder mechanism experienced a malfunction that rendered it inoperable. This failure caused the airplane to become uncontrollable. In response to the loss of control, the crew members initiated an emergency ejection procedure. Following their departure from the cockpit, the uncontrolled aircraft descended and impacted the ground in a nearby field. The impact resulted in the total destruction of the airframe. Both individuals on board survived the event without sustaining any injuries.
Findings
Investigation determined that the root cause of the accident was a mechanical failure. Specifically, the rudder bar support failed during the initial climb phase. This structural failure led directly to the jamming of the rudder and the subsequent loss of control.
Probable cause
The rudder bar support failed during the initial climb, causing the rudder to jam and rendering the aircraft uncontrollable.
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