On August 19, 2003, a Piper PA-25 (registration N4346Y) was involved in an aviation accident near Brandon, WI. Investigators recorded the probable cause as: The pilot failed to maintain clearance from the corn crop during an aerial application maneuver. Additional factors were the terrain induced turbulence and the corn crop. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
An aerial application airplane sustained substantial damage after impacting a corn crop and terrain during a spray pass. The pilot reported moderate turbulence and was unable to stop the descent.
Accident Summary
A part 137 aerial application airplane was conducting a spray pass over a field when it impacted the corn crop and terrain, resulting in substantial damage. The pilot reported that approximately 70 gallons of chemical remained in the aircraft at the time of the accident. The winds were from the south at 9 knots, gusting to 14 knots, and the temperature was 88 degrees Fahrenheit.
Sequence of Events
The pilot stated that the airplane was descending over a treeline while heading southbound when it encountered moderate turbulence. He reported being unable to stop the descent before the airplane made contact with the corn. The airplane continued its descent, and the nose impacted the ground, causing the aircraft to skid to a stop.
Mechanical Status
The pilot reported that there was no mechanical malfunction of the airplane prior to the accident.