Incident Overview
A non-instrument rated pilot operated an unpressurized Cessna 210 on a visual flight plan. The aircraft climbed above cloud cover and reached an altitude of 16,500 feet mean sea level (MSL). According to the pilot, shortly after passing a location referred to as 'Crazy Peak', the aircraft encountered extreme turbulence.
Sequence of Events
The pilot reported that the aircraft was 'sucked down' into the clouds below. Upon entering the clouds, the pilot reduced engine power. The aircraft then began a steep descent and rolled into a bank of at least 90 degrees. The Cessna 210 exited the clouds while in an inverted spin at an altitude of approximately 10,000 feet MSL.
Damage and Landing
The aircraft sustained substantial damage during the out-of-control sequence and the subsequent spin recovery. Despite the damage, the pilot flew the aircraft to its destination and performed an uneventful landing.