Amateur-built TAILWIND W 8 N1983T accident near Big Bear, California

Probable cause

The pilot's inadvertent landing off the left side of the snow-covered runway, resulting in a ground loop and nose over.

NTSB analysis

According to the pilot, during his approach at a non-towered airport at night, he made the descent to what he thought was the runway, but realized that it was actually the taxiway, and "slipped" right, to what he then perceived to be the runway. Upon touchdown, the airplane ground looped and nosed over. The pilot had landed and nosed over in the safety area to the left of the runway.

The pilot reported that he had been flying for the preceding 12 hour period, and conceded to having exceeded his personal endurance limitations. The airplane sustained substantial damage to both wings.

The pilot reported that there were no mechanical failures or anomalies with the airplane prior to or during the flight that would have prevented normal flight operation.

Text from the NTSB. Open the NTSB docket for GAA16CA121 for the full record.