Casualties unknown

Aircraft Veers Off Runway During Unauthorized Takeoff in Taxi Test (N9216K)

Healdsburg, CA, US

On April 5, 1987, a Stinson 108 (registration N9216K) was involved in an aviation accident near Healdsburg, CA. 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

During a taxi test, a pilot decided to take off, lost control, and veered right off the runway, colliding with terrain. The pilot had first flown the aircraft the previous day with the owner.

Accident Overview

A pilot conducting what was intended as a taxi test lost control of the aircraft after deciding to take off. The aircraft veered to the right off the runway and collided with terrain.

Sequence of Events

The day before the accident, the pilot had flown the aircraft for the first time with the owner. According to the owner, the pilot could not take off or land the aircraft without assistance. On the day of the accident, the owner instructed the pilot to taxi the aircraft around to become familiar with the brakes. Instead, the pilot took the aircraft down the runway, where it became airborne. At an altitude of 3 to 5 feet above ground level, the left wing dipped. The aircraft then settled back onto the runway and veered to the right before departing the runway and colliding with terrain.

Pilot Experience

The owner reported that prior to the accident, the pilot required assistance for takeoffs and landings. The accident occurred during what was supposed to be a simple taxi exercise to evaluate brake feel.

Frequently asked questions

What happened in the 5 Apr 1987 Stinson 108 accident near Healdsburg, CA?

During a taxi test, a pilot decided to take off, lost control, and veered right off the runway, colliding with terrain. The pilot had first flown the aircraft the previous day with the owner.

What aircraft was involved and where did it happen?

The accident on 5 Apr 1987 involved a Stinson 108, registration N9216K, at Healdsburg, CA.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X30731. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.