Primary finding
Probable cause
An inflight collision with a bird, which resulted in substantial damage to the left wing.
Investigator assessment
Analysis narrative
The pilot reported that as he was turning on the left downwind leg, he observed 5 or 6 large birds about 200 ft ahead of him, which appeared to be moving mostly downward and to the left of his heading. He attempted to climb and turn right to avoid them, but impacted one of the birds with the airplane’s left wing, which resulted in substantial damage. The pilot reported that there were no preimpact mechanical malfunctions or anomalies that would have precluded normal operation.