2 fatalities

Airplane Crash in Residential Area Following In-Flight Struggle (N2655V)

Boulder, United States of AmericaFlight

On April 1, 1990, a Cessna 421C Golden Eagle III (registration N2655V) operated by Rocky Mountain Intensive was involved in an aviation accident near Boulder, United States of America in flight. 2 people were killed. Investigators recorded the probable cause as: A loss of airplane control as a result of control interference by the passenger following a struggle between the pilot and the passenger. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A).

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary report: the U.S. National Transportation Safety Board (NTSB) historical archiveUpdated 2026-07-04Data APIEditorial standards

An airplane observed flying erratically at low altitude impacted a residential area. Autopsies revealed injuries from a struggle; the passenger had planned to jump out over Colorado mountains.

Overview

An airplane operating under unknown circumstances crashed into a residential area after being observed flying erratically at low altitude. The aircraft entered a left wing, nose low attitude before impacting the ground.

Incident Details

Witnesses reported the airplane flying in an erratic manner at low altitude. It subsequently entered a left wing, nose low attitude and struck the ground in a residential neighborhood. The crash resulted in massive traumatic injuries to both occupants, as documented in autopsy reports. These injuries were sustained during a struggle that occurred in flight.

Investigation Findings

Autopsy findings indicated that the injuries were consistent with a struggle between the pilot and the passenger. The passenger had reportedly planned to take his own life by jumping out of the airplane over the mountains of Colorado, believing he had an inoperable brain tumor. The investigation determined that the passenger interfered with the controls during the struggle.

Probable Cause

The official probable cause was a loss of airplane control as a result of control interference by the passenger following a struggle between the pilot and the passenger.

Frequently asked questions

What happened in the 1 Apr 1990 Cessna 421C Golden Eagle III accident near Boulder, United States of America?

An airplane observed flying erratically at low altitude impacted a residential area. Autopsies revealed injuries from a struggle; the passenger had planned to jump out over Colorado mountains.

Were there any fatalities in the 1 Apr 1990 Cessna 421C Golden Eagle III accident?

The accident was fatal, resulting in 2 fatalities.

What aircraft was involved and where did it happen?

The accident on 1 Apr 1990 involved a Cessna 421C Golden Eagle III, registration N2655V, operated by Rocky Mountain Intensive, at Boulder, United States of America.

What was the probable cause of the accident?

A loss of airplane control as a result of control interference by the passenger following a struggle between the pilot and the passenger.