ASN Wikibase Occurrence # 365667
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| Date: | Monday 18 February 1991 |
| Time: | 17:00 LT |
| Type: |  Dassault Falcon 900 |
| Owner/operator: | Aviations Methods, Inc. |
| Registration: | N90EW |
| MSN: | 27 |
| Engine model: | GARRETT TFE 731-5 |
| Fatalities: | Fatalities: 0 / Occupants: 7 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Eagle, CO -
 United States of America
|
| Phase: | En route |
| Nature: | Executive |
| Departure airport: | Eagle, CO (KEGE) |
| San Francisco, CA (SFO | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
N90EW WAS IN A CLIMBING TURN PASSING THROUGH 11500 FEET WHEN THE FLIGHT CREW FELT AND HEARD AN EXPLOSION. COCKPIT INSTRUMENTS INDICATED THAT THE LEFT ENGINE HAD FAILED. THE ENGINE WAS SECURED AND THE AIRCRAFT RETURNED TO EAGLE COUNTY AIRPORT WITHOUT FURTHER INCIDENT. A SUBSEQUENT ENGINE EXAMINATION REVEALED 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.
Probable Cause: IMPROPER ENGINE MAINTENANCE BY MAINTENANCE PERSONNEL, IMPROPER ASSEMBLY OF THE COMBUSTION ASSEMBLY TRANSITION LINER, AND THE RUPTURE OF THE FIRST STAGE LP TURBINE WHEEL.
Accident investigation:
 |
|
Sources:
NTSB DEN91IA046
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 20-Mar-2024 12:34 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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