On October 25, 1967, a Learjet 23 (registration N432EJ) operated by Executive Jet Sales was involved in an aviation accident near Muskegon, United States of America during landing or approach. No fatalities were reported. Investigators recorded the probable cause as: The simultaneous failure of both engines was caused by compressor stalls resulting from the ingestion of ice. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A).
An aircraft experienced a simultaneous loss of power in both engines while approaching Muskegon County Airport, resulting in a crash into Lake Michigan.
What happened
During an approach to Muskegon County Airport, the aircraft suffered a total loss of power as both engines failed at the same time. Following the engine failure, the plane entered a stall and descended into the waters of Lake Michigan. Despite the impact with the water, all four occupants were successfully rescued from the wreckage shortly after the incident occurred. The aircraft itself was destroyed in the crash.
Findings
Investigations into the accident determined that the primary cause of the dual engine failure was the ingestion of ice into the engines. This ice intake led to a compressor stall in both powerplants, which subsequently caused the loss of thrust during the final stages of the flight approach.
Probable cause
The simultaneous failure of both engines was caused by compressor stalls resulting from the ingestion of ice.