What happened
Following a landing on runway 32, the pilot taxied the aircraft clear of the active pavement and proceeded onto a taxiway oriented at 040 degrees magnetic. At approximately 0932, meteorological conditions were characterized by gusty, high-velocity winds blowing from 320 degrees magnetic at 34 knots, with gusts reaching up to 46 knots. During this phase of ground operations, the airplane experienced a nosing-over event that resulted in the aircraft coming to rest in an inverted position.
The investigation
Post-accident examination of the airframe revealed substantial structural damage. The propeller assembly sustained impact damage, as did both wings and their supporting wing struts. These findings indicate significant force was applied to the lower fuselage and wing structures during the inversion event.
Findings
The primary contributing factor was the wind velocity relative to the aircraft's design limitations. The maximum demonstrated crosswind velocity for this specific airplane model, as documented in its Information Manual, is 15 knots. The reported wind conditions of 34 to 46 knots vastly exceeded this limit. Fuel exhaustion is not a factor; the event was purely aerodynamic and environmental. The pilot operated in conditions far beyond the aircraft's certified handling envelope.
Safety message
Pilots must strictly adhere to demonstrated crosswind limits for their specific aircraft type. Operating in winds significantly exceeding these limits, particularly during low-speed ground maneuvers like taxiing, poses a severe risk of loss of control and structural failure regardless of pilot skill.