Casualties unknown

Low-Flying Aircraft Collides with Utility Pole and Trees Before Crashing into Residence (N6567M)

Shiocton, WI, US

On July 26, 1986, a Stinson 108-3 (registration N6567M) operated by R. L. Heinz was involved in an aviation accident near Shiocton, WI. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-07-04Data APIEditorial standards

An aircraft flying at treetop level over residential areas struck a utility pole and trees, then crashed into a private residence and caught fire. The aircraft was destroyed; the residence sustained extensive damage. Pilot and passenger had elevated blood alcohol levels.

Incident Overview

According to witness reports, prior to the accident, the aircraft was observed flying at a very low altitude, near treetop level, over residences, a ball park, and a lake park. Subsequently, the aircraft collided with a utility pole and trees, then crashed into a private residence and burst into flames.

Damage and Investigation

The aircraft was destroyed by the impact and ensuing fire. The residence was extensively damaged as a result of the collision and the post-crash fire. Witnesses reported that the engine was operating normally prior to the accident. During the investigation, no preimpact mechanical problems were found.

Toxicology Findings

A check of the pilot's blood showed an alcohol level of 0.193%. The passenger had a blood alcohol level of 0.116%. The pilot's medical certificate was dated July 22, 1983.

Frequently asked questions

What happened in the 26 Jul 1986 Stinson 108-3 accident near Shiocton, WI?

An aircraft flying at treetop level over residential areas struck a utility pole and trees, then crashed into a private residence and caught fire. The aircraft was destroyed; the residence sustained extensive damage. Pilot and passenger had elevated blood alcohol levels.

What aircraft was involved and where did it happen?

The accident on 26 Jul 1986 involved a Stinson 108-3, registration N6567M, operated by R. L. Heinz, at Shiocton, WI.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X34099. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.