On February 18, 1991, an Avions Marcel Dassault MISTERT FALCON 900 (registration N90EW) operated by Aviations Methods, Inc. was involved in an aviation accident near Eagle, CO. No fatalities were reported. Investigators recorded the probable cause as: An error occurred in the assembly of the mating of the inner transition liner to the HP turbine nozzle during the last major periodic maintenance inspection. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
An aircraft experienced an explosion during a climbing turn, indicating left engine failure. The crew secured the engine and returned to Eagle County Airport. Investigation found an assembly error during the last major periodic maintenance inspection.
Event Description
During a climbing turn, as the aircraft passed through 11,500 feet, the flight crew felt and heard an explosion. Cockpit instruments indicated that the left engine had failed. The crew promptly secured the failed engine and returned the aircraft to Eagle County Airport without further incident.
Engine Examination
A subsequent examination of the engine revealed that an error had occurred during the assembly of the mating of the inner transition liner to the high-pressure turbine nozzle. This error took place during the last major periodic maintenance inspection, and it was identified as the cause of the failure.
Probable cause
An error occurred in the assembly of the mating of the inner transition liner to the HP turbine nozzle during the last major periodic maintenance inspection.
What happened in the 18 Feb 1991 Avions Marcel Dassault MISTERT FALCON 900 accident near Eagle, CO?
An aircraft experienced an explosion during a climbing turn, indicating left engine failure. The crew secured the engine and returned to Eagle County Airport. Investigation found an assembly error during the last major periodic maintenance inspection.
Were there any fatalities in the 18 Feb 1991 Avions Marcel Dassault MISTERT FALCON 900 accident?
No fatalities were recorded in this accident.
What aircraft was involved and where did it happen?
The accident on 18 Feb 1991 involved an Avions Marcel Dassault MISTERT FALCON 900, registration N90EW, operated by Aviations Methods, Inc., at Eagle, CO.
What was the probable cause of the accident?
An error occurred in the assembly of the mating of the inner transition liner to the HP turbine nozzle during the last major periodic maintenance inspection.
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