ASN Wikibase Occurrence # 354399
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| Date: | Friday 29 May 1998 |
| Time: | 10:30 LT |
| Type: |  Gulfstream American AA-1C |
| Owner/operator: | Private |
| Registration: | N9606U |
| MSN: | AA1C-0071 |
| Total airframe hrs: | 3741 hours |
| Engine model: | Lycoming O-320-D2B |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Roanoke, TX -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Private |
| Departure airport: | (52F) |
| Fort Worth, TX (NFW | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During the initial takeoff climb, the engine gradually lost power, and the airplane descended into trees approximately 1/4 mile from the departure end of the runway. Examination of the engine revealed evidence that the power loss resulted from an excessively rich mixture. Black carbon deposits were present on the exhaust valves and exhaust stacks of two cylinders, and the engine oil drained from all the cylinders contained aviation fuel. Examination of the carburetor revealed no evidence of any discrepancies that would have resulted in a rich mixture. The reason for the excessively rich mixture could not be determined.
Probable Cause: The loss of engine power resulting from an excessively rich mixture for an undetermined reason. A factor was the lack of suitable terrain for the forced landing.
Accident investigation:
 |
|
Sources:
NTSB FTW98LA242
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 11-Mar-2024 14:00 | ASN Update Bot | Added |
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