Schweizer 269C-1, G-CEAW
The pilot was performing takeoffs and landings at Liverpool Airport when the helicopter entered ground resonance while landing. The rotor rpm (NR) was too low for flight but, instead of closing the throttle, the pilot attempted to restore the NR to the normal speed. The ground resonance increased rapidly and the aircraft was damaged beyond economic repair. The pilot recalls losing control; his next recollection is receiving medical treatment 40 m from the helicopter. His injuries were classified as minor. The helicopter’s landing gear dampers were subjected to several tests, but with inconclusive results.
Schweizer 269C-1, G-CEAW 03-11.pdf (391.78 kb)