N331BF – AYRES CORPORATION S2R-G6 – 2011-07-28 NTSB Accident Report

On July 28, 2011, a Ayres Corporation S2R-G6 (N331BF) was involved in an incident near Forest City, IA. All 1 person aboard were uninjured. The aircraft sustained substantial damage.

The National Transportation Safety Board determined the probable cause of this incident to be: The pilot's inadequate visual lookout during an aerial application run, which resulted in an in-flight collision with a windmill.

The agricultural pilot had completed a spray run and pulled up to clear trees at the end of the field. The pilot reported that several trees and windmills were located at the southern end of the field and as the airplane made a climbing left turn, the right wing struck a windmill blade. The collision tore the spray boom from the airplane, which then impacted the airplane’s right side stabilizer and fuselage, causing substantial damage. The pilot was able to perform a successful precautionary landing on a nearby gravel road.

This incident is documented in NTSB report CEN11CA545. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N331BF.