On August 4, 1997, a Beech A36 (registration N4640M) was involved in an aviation accident near Chesterfield, MO. Investigators recorded the probable cause as: the pilot's failure to maintain proper alignment on the taxiway. Factors associated with the accident were the fence post, and the sunglare, which hindered the pilot's ability to see the fence post. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
During taxi after landing, an airplane's left wing contacted a 6-inch diameter fence post on a private taxiway. The pilot was unaware of the obstacle and was taxiing into the setting sun.
Incident Overview
Following a landing, while taxiing, the left wing of the airplane contacted a 6-inch diameter fence post. The point of contact was 4 feet inboard of the left wingtip. The pilot was unaware of the presence of the posts and was taxiing into the setting sun.
Taxiway and Obstacle Information
The fence post was installed on a private taxiway. It was part of a gate that enclosed a private hangar area. The post was positioned adjacent to the pavement. Another post was located on the opposite side of the taxiway. The distance between the two posts measured 38 feet 5 inches. The airplane's wingspan was 33 feet 6 inches.
Dimensions and Clearances
The diameter of the post was 6 inches. The wingspan of the airplane was 33 feet 6 inches. The clearance between the two gate posts was 38 feet 5 inches. The post that was struck was situated 4 feet from the left wingtip.