What happened
On 18 June 2024, a Piper PA-28-140, registration G-AWBS, was conducting a private pleasure flight from Eddsfield Airfield in East Yorkshire. After picking up two passengers, the pilot performed necessary power and taxi checks before departing from Runway 09 at 19:55 UTC. The departure took place on a 725-metre grass runway under wind conditions of 12 knots, gusting to 22 knots.
During the initial climb, the pilot established an attitude for a maximum gradient climb to clear 80-foot trees located at the end of the airfield. As the aircraft passed over the trees, the pilot attempted to increase airspeed by adjusting the aircraft's attitude. During this maneuver, the aircraft experienced a descent of approximately 10 to 15 feet and ceased its climb. The aircraft subsequently struck the treetops, causing a jolt and a continued descent. The pilot steered the aircraft toward a visible clearing, eventually coming to rest in the driveway and garden of a nearby residence. The impact resulted in the destruction of the aircraft, though the pilot and two passengers escaped with minor injuries.
The investigation
Investigators examined the engine and the aircraft's performance capabilities. An independent maintenance organization tested the engine and found the carburettor to be performing normally. Furthermore, all weight and balance calculations, as well as takeoff performance assessments, were verified and found to be correct.
Findings
- The investigation considered the possibility of carburettor icing as a factor in the loss of performance. Given that the air temperature was 15°C and the dew point was 12°C, conditions were conducive to serious icing. It was noted that ice could have accumulated during the taxiing phase prior to takeoff.
- The pilot noted that gusty wind conditions and the influence of obstacles on wind patterns were potential contributing factors.
- There was no evidence of a stall or a malfunction of the stall warning system during the event.