Primary finding
Probable cause
The pilot’s improper landing flare, which resulted in a nose down attitude and subsequent porpoised landing.
Investigator assessment
Analysis narrative
The pilot reported that the airplane likely touched down on the nose landing gear first. The pilot stated that the airplane pitched upward immediately after touchdown, followed by episodes of increasing variation in pitch, then a sudden downward pitch, and the collapse of the nose landing gear. The airplane came to rest on the runway and sustained substantial damage to the engine mount and firewall. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.