1 fatality

Pilot Killed in Multi-Engine Aircraft Crash After Engine Trouble at Lawrence County Airpark (N100HA)

Chesapeake-Lawrence County Airpark, United States of AmericaTakeoff (climb)

On July 27, 1985, a Rockwell Grand Commander 680 (registration N100HA) operated by McSweeney's Mill & Mine Service was involved in an aviation accident near Chesapeake-Lawrence County Airpark, United States of America during takeoff. One person was killed. Investigators recorded the probable cause as: Loss of engine power (partial) - nonmechanical, with contributing factors including inadequate throttle control, self-induced pressure, inadequate certification/approval, failure to use emergency procedures, excessive workload, insufficient operational… This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A).

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-06-11Data APIEditorial standards

A pilot on his second flight since earning a multi-engine rating died after his aircraft experienced engine problems shortly after takeoff, struck trees on a ridgetop.

Sequence of Events

The accident flight was the pilot's second flight since obtaining his multi-engine rating and third flight since earning his commercial pilot certificate. Departing from Lawrence County Airpark, the aircraft had just passed the end of the runway when an engine began emitting a popping sound. The pilot transmitted over the unicom frequency that he was experiencing difficulties. The aircraft climbed to an estimated 500 feet and initiated a left turn away from the Ohio River, proceeding toward the hills. Witnesses reported observing the aircraft porpoising in the air, and at one point, both engines seemed to fail momentarily before restarting. Following this, the aircraft rolled into a left bank and ultimately struck trees on a ridgetop. The sole occupant, the pilot, was killed.

Probable Cause and Contributing Factors

The official investigation listed the following probable cause and findings: Occurrence #1 was a loss of engine power (partial) of nonmechanical origin. The findings identified the following factors: erratic engine operation, inadequate throttle/power control by the pilot, self-induced pressure, inadequate certification/approval standards (attributed to the FAA), failure to use emergency procedures, excessive workload, insufficient operational standards (attributed to company/operator management), failure to maintain Vmc (minimum control speed), lack of total experience, lack of familiarity with the aircraft, inadequate training, and pressure on the pilot. Occurrence #2 was an in-flight collision with an object—specifically trees on mountainous/hilly terrain. Additional findings included failure to identify propeller feathering and poor pilot judgment.