What happened
On 30 June 2009, a Flight Design CTSW, registration G-CERA, was preparing for a private flight from Barton Aerodrome to Sherburn-in-Elmet. The pilot had completed all necessary pre-flight and power checks, confirming that the fuel supply was sufficient and the engine magnetos were functioning correctly. During the takeoff roll on Runway 0lam, the engine experienced a brief period of shuddering and coughing. After checking the choke control, the pilot decided to continue the takeoff.
As the aircraft climbed to approximately 300 ft, the engine began to shudder again before losing power entirely. At the same time, the pilot was retracting the flaps, which further decreased the aircraft's climb rate. Realizing the engine had failed, the pilot attempted to steer the aircraft toward a nearby sports field but instead headed toward a gap between two houses. After transmitting a distress call, the aircraft struck telephone wires and crashed into a domestic garden. The impact caused the forward section of the aircraft to detach. Both the pilot and the passenger sustained minor injuries, and while a house was struck, no individuals on the ground were harmed.
The investigation
Investigators examined the wreckage and the engine components. A strip-examination of the engine, conducted alongside the manufacturer's UK agent, revealed no internal mechanical defects. The engine and fuel supply system showed damage consistent with the impact of the crash. The investigation also considered the fuel system layout, noting that the fuel pipes pass over the top of the engine, which can lead to heat-related issues.
Findings
- The engine failure occurred during the initial climb phase of the flight.
- There was no evidence of internal mechanical failure within the engine.
- An interruption in the fuel supply is considered the most likely cause of the power loss.
- While vapour lock was considered, it was deemed unlikely as the engine had not been running at low power for a long duration.
- Other potential factors, such as fuel contamination (water or debris) or carburettor icing, could not be ruled out due to a lack of definitive evidence.