2 fatalities

Pilot Loses Control and Crashes into Lake Michigan During Positioning Flight (N454SA)

Chicago-Merrill C. Meigs, United States of AmericaLanding (descent or approach)

On June 9, 1979, a Beechcraft 99 Airliner (registration N454SA) operated by Skystream Airlines was involved in an aviation accident near Chicago-Merrill C. Meigs, United States of America during landing or approach. 2 people were killed. Investigators recorded the probable cause as: Loss of control on final approach after the pilot suffered a spatial disorientation. Contributing factors: initiated flight in adverse weather conditions, low ceiling, fog, visibility limited to one mile or less. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A).

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-06-12Data APIEditorial standards

While descending to Chicago-Merrill C. Meigs Airport, the pilot encountered poor weather and lost control, crashing into Lake Michigan. Both occupants were presumed dead.

Incident Overview

A pilot on a positioning flight to Chicago-Merrill C. Meigs Airport encountered poor weather conditions while descending. The weather included low ceiling, fog, and limited visibility. During the descent, the pilot lost control of the airplane, which subsequently crashed into Lake Michigan. Few debris were found, and the main wreckage was not recovered. Both occupants were presumed dead.

Investigation Findings

Investigators determined that the pilot suffered a loss of control on final approach due to spatial disorientation. Several contributing factors were identified: the pilot initiated the flight in adverse weather conditions, and the environment featured low ceiling, fog, and visibility limited to one mile or less.

Probable Cause

The official probable cause was loss of control on final approach after the pilot suffered spatial disorientation. Contributing factors included initiating flight in adverse weather, low ceiling, fog, and visibility limited to one mile or less.