Primary finding
Probable cause
The pilot’s failure to maintain clearance from a tree limb during a low-level aerial application flight.
Investigator assessment
Analysis narrative
The pilot was flying an aerial application pass to a rice field when the right wing struck a tree limb at the edge of the field. After the collision, the airplane was “descending slowly and trying to roll.” He executed a forced landing to an open field. The airplane sustained substantial damage to both wings. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.