What happened
The private pilot landed on a wet grass airstrip and completed the landing roll without incident. After stopping, the pilot began to taxi back toward the runway for another takeoff attempt. The terrain at this location sloped downward slightly. As the pilot applied brakes and rudder input to turn the airplane to the right, the nose gear suddenly collapsed. This structural failure caused the aircraft to become inverted.
The investigation
Post-accident examination revealed no evidence of pre-existing mechanical failures. The pilot reported that there were no mechanical malfunctions or difficulties with the airplane prior to the accident sequence. The collapse appears linked to the specific conditions during the taxi maneuver on the sloped, wet surface.
Findings
The primary factor in this accident was the collapse of the nose gear during a right turn. Contributing factors included the wet grass airstrip surface and the downward slope of the terrain, which likely increased stress on the landing gear during braking and steering inputs. The phase of flight was taxiing, a period often overlooked for high-stress maneuvers but critical for ground handling.
Safety message
Pilots operating on soft or uneven surfaces should be cautious of increased loads on landing gear during turns, especially when combined with braking. Wet conditions can reduce traction and alter weight distribution dynamics unexpectedly.