On April 29, 1986, an Air Tractor AT301 (registration N3660Y) was involved in an aviation accident near Bruceville, IN. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
An aircraft collided with trees while executing a pull-up at the end of a swath run, causing the right wing tip to separate and the aircraft to cartwheel. The aircraft was 216 lbs over gross weight, and the pilot misjudged the terrain.
Accident Narrative
During an agricultural swath run, the aircraft began a pull-up at the end of the run. At that moment, it collided with trees. The impact caused the right wing tip to separate from the aircraft. The aircraft subsequently rolled, striking the ground with the right wing first, which initiated a cartwheel motion.
Investigation Findings
Investigation into the accident revealed that the aircraft exceeded its maximum gross weight by 216 pounds at the time of the event. No other factors were noted in the official findings.
Pilot Statement
The pilot stated that he incorrectly judged the rolling terrain. He found that the aircraft could not outclimb the terrain, leading to the collision.