Accident Details
The pilot of a tailwheel-equipped airplane landed up-slope on a vegetation-covered unimproved runway. According to the pilot, he had landed at the same location four days earlier without incident. While back taxiing on the downhill portion of the runway, the airplane began to accelerate. The pilot applied the main wheel brakes in an effort to slow the airplane, but it continued into a soft muddy section and subsequently nosed over.
Damage
The airplane sustained substantial damage to the vertical stabilizer, rudder, and left wing lift strut. The pilot stated that there were no preaccident mechanical anomalies with the airplane that would have precluded normal operation.
Pilot Comments
In the recommendation section of the NTSB Accident/Incident Reporting Form 6120.1, the pilot stated that the accident may have been avoided if he had taxied at a slower speed, or if he had been more cautious of the changing runway conditions.