Event Summary
The pilot conducted seven to nine high-speed taxi runs on a grass strip that was covered with snow. Each run was intended to pack the snow down. In each preceding run, the pilot aborted the takeoff midway after noticing that the aircraft had not reached flying speed. On the final run, the aircraft again failed to attain flying speed, and the pilot decided to abort the takeoff midway down the strip.
Pilot's Account
According to the pilot, he closed the throttle and pulled back on the control stick. However, the aircraft decelerated more quickly than it typically would. This caused the aircraft to roll over its nose and come to rest on its back.
Sequence of Events
The pilot stated that the high-speed taxis were performed to pack the snow on the grass runway. After multiple attempts, the final run still did not achieve flying speed. The abort procedure involved closing the throttle and pulling back on the stick. The aircraft's deceleration was faster than usual, leading to the nose-over.
Aftermath
The pilot's statement is the sole source of information regarding the occurrence. No other details about the aircraft's condition or any injuries are provided.