Casualties unknown

Loss of control after takeoff due to autopilot malfunction (N999WF)

Lawton, MI, US

On December 6, 1986, a Cessna T210L (registration N999WF) operated by Roger D. Beyer was involved in an aviation accident near Lawton, MI. Investigators recorded the probable cause as: The pilot's loss of control of the aircraft shortly after takeoff, which resulted in an uncontrolled descent and ground impact. 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 2026-06-20Data APIEditorial standards

An aircraft experienced a loss of control shortly after takeoff, resulting in an uncontrolled descent and ground impact. The pilot reported previous autopilot runaways.

What happened

The pilot experienced a loss of control shortly after takeoff. This event resulted in an uncontrolled descent where the aircraft struck the ground with its left wingtip, causing it to flip over onto its side.

The pilot reported that the autopilot had been worked on after experiencing autopilot runaways during previous flights. Following the accident, the autopilot was bench tested and functioned normally.

The investigation

The aircraft was examined following the incident. The pilot provided details regarding the maintenance history of the flight control systems prior to the event.

Probable cause

The pilot's loss of control of the aircraft shortly after takeoff, which resulted in an uncontrolled descent and ground impact.

Frequently asked questions

What happened in the 6 Dec 1986 Cessna T210L accident near Lawton, MI?

An aircraft experienced a loss of control shortly after takeoff, resulting in an uncontrolled descent and ground impact. The pilot reported previous autopilot runaways.

What aircraft was involved and where did it happen?

The accident on 6 Dec 1986 involved a Cessna T210L, registration N999WF, operated by Roger D. Beyer, at Lawton, MI.

What was the probable cause of the accident?

The pilot's loss of control of the aircraft shortly after takeoff, which resulted in an uncontrolled descent and ground impact.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X35312. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.