What happened
On 20 July 2003, at approximately 15:35 UTC, a private flight involving a Stinson 108-3, registration EI-CGC, resulted in an aircraft accident at Kilrush airfield, Co. Kildare. The pilot and one passenger intended to perform a single circuit of Runway 11. During the final approach, the aircraft encountered a powerful downdraught that forced the plane into a field of oats located just short of the runway threshold.
As the main wheels entered the soft ground, the aircraft overturned. The impact caused substantial damage to the propeller, wing struts, and tail fin, with potential shock loading to the engine. Despite the inversion, both occupants were able to exit the aircraft without assistance. There were no fatalities, though the pilot sustained a minor head injury and both individuals were in shock.
The investigation
The investigation established that the accident was witnessed by a crew from a Garda Air Support Unit Defender aircraft. The witness observed the approach and the subsequent inversion of the Stinson. Upon landing to provide aid, the witness confirmed the safety of the occupants and took the precaution of disconnecting the aircraft battery.
Physical examination of the aircraft revealed that the propeller blades were bent in opposing directions and the spinner had disintegrated. The engine frame was found to be bent, and oil was leaking from the unit. The investigation also noted that the wind at the time was a steady, gentle southeasterly breeze.
Findings
- The primary cause of the accident was a strong downdraught that forced the aircraft into the ground.
- The soft terrain of the oat field contributed to the main wheels digging in, leading to the aircraft flipping onto its back.
- The aircraft's flight permit for vintage operations in Ireland had expired on 9 January 2003.