Piper PA 18 N1890A accident near Santa Barbara, California

Probable cause

The pilot's failure to maintain adequate airspeed during the approach, which resulted in a rapid descent rate, hard landing, and nose-over.

NTSB analysis

The pilot reported that, during the landing approach to a ridgeline airstrip, he deployed full flaps and descended to the touchdown point. About 15 ft above ground level, the airplane started to descend, which he failed to recognize and arrest. The pilot added that the approach speed was also a little too slow for the unstable air, which likely increased the descent rate. Subsequently, the airplane touched down hard short of the touchdown point, nosed over, and came to rest inverted. The left wing and empennage were substantially damaged. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Text from the NTSB. Open the NTSB docket for WPR20CA105 for the full record.