3 fatalities

1978-10-20: Learjet 25 (N100MK) — Kelco Aircraft Company — Vickery, United States of America

Vickery, United States of AmericaFlight

On October 20, 1978, a Learjet 25 (registration N100MK) operated by Kelco Aircraft Company was involved in an aviation accident near Vickery, United States of America in flight. 3 people were killed. Investigators recorded the probable cause as: Airframe failure in flight following poor/inadequate design. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A).

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 1781226007Data APIEditorial standards
Aircraft registered N100MK
Aircraft registered N100MK. Photo: FlugKerl2 / CC BY-SA 3.0, via Wikimedia Commons

A training flight from Cleveland-Hopkins Airport crashed near Vickery after losing control at 16,500 feet. The aircraft disintegrated in midair and all three crew members were killed.

Accident

An aircraft departed Cleveland-Hopkins Airport in the early morning for a training mission. The flight was a perfection course for one of the pilots. While cruising at an altitude of 16,500 feet, the airplane went out of control and nosed down to an angle of 60°. It partially disintegrated in the air and eventually crashed in an open field located near Vickery. The aircraft was totally destroyed and all three crew members were killed.

Investigation

Investigators examined the wreckage and determined the probable cause of the accident. The official findings attributed the crash to airframe failure in flight following poor or inadequate design. Several contributing factors were identified, including issues with the autopilot servo, material failure, and an abrupt nose down pitch.

Probable Cause

The probable cause of the accident was airframe failure in flight following poor/inadequate design. Contributing factors included autopilot servo problems, material failure, and an abrupt nose down pitch.