Primary finding
Probable cause
The pilot's failure to maintain directional control while taxiing on a rough/uneven airstrip.
Investigator assessment
Analysis narrative
The pilot reported he was taxiing on an unimproved airstrip during a Title 14 CFR Part 91 personal flight when the accident occurred. He stated the airplane's tailwheel became stuck in a rut, and when he added power to free it, the empennage spun around and impacted a solid object. During the impact the empennage sustained substantial damage. The pilot verified that there were no mechanical anomalies with the airplane prior to the accident.
Source record
Factual narrative
The pilot reported he was taxiing on an unimproved airstrip during a Title 14 CFR Part 91 personal flight when the accident occurred. He stated the airplane's tailwheel became stuck in a rut, and when he added power to free it, the empennage spun around and impacted a solid object. During the impact the empennage sustained substantial damage. The pilot verified that there were no mechanical anomalies with the airplane prior to the accident.