The Aviat Aircraft A1B pilot reported that after touchdown on a grass airstrip in LaGrange, Wyo., the landing roll was normal for about 100 feet, but then the plane came to an abrupt stop, like it had hit something.
It nosed over, substantially damaging the rudder and wings and minor injuries to the pilot.
The pilot and ranch personnel inspected the landing area and followed the airplane’s tracks back toward the point of touchdown. They found a large hole, likely dug by an animal, approximately 24 inches deep, and in line with the airplane’s right tire track.
The pilot said he did not see the hole when flying downwind, nor on the base leg, or final approach.
The NTSB determined the probable cause as the pilot’s decision to land on a rough surface with hidden obstructions.
NTSB Identification: WPR14CA047
This November 2013 accident report is provided by the National Transportation Safety Board. Published as an educational tool, it is intended to help pilots learn from the misfortunes of others.