Air Tractor Inc. AT-301 N3169R accident near Ambia, Indiana

Probable cause

The altitude/clearance not obtained/maintained by the pilot while maneuvering over an agricultural field during an aerial application. Contributing factors were the sunglare in the direction of flight, the low altitude of the operation, and the upslope of the field.

NTSB analysis

The pilot approached and descended towards the west over power lines adjacent to the east/west corn field that he was going to spray. He noted that the sun was "kinda bright" and was a restriction to visibility. During the round out to level flight over the field, the pilot noticed that the airplane continued to sink and before he could release the spray handle and actuate the dump handle, the airplane impacted the field. The pilot "thinks" that his left hand went from the spray lever to the power lever to both hands on the control stick to try and keep the wings level to avoid the airplane from nosing over. The pilot stated that the field "appeared" to be flat but was later told that it had a "slight" rise.

Text from the NTSB. Open the NTSB docket for CHI08CA223 for the full record.