Primary finding
Probable cause
The pilot's failure to maintain obstacle clearance which resulted in an in-flight collision with a tree. Contributing to the accident was his impairment from the effects of alcohol consumption.
Investigator assessment
Analysis narrative
The pilot departed an unknown airstrip and made an emergency landing at a US Army airfield. The left wing strut was substantially damaged and consistent with an impact with a tree. The pilot was uncooperative with first responders and smelled of alcohol and appeared to be under the influence. A police officer found an open container of alcohol in the airplane and transported the pilot to the hospital.