ASN Wikibase Occurrence # 180701
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| Date: | Monday 26 October 2015 |
| Time: | 14:23 |
| Type: |  Cessna 150M |
| Owner/operator: | Ameri Air Support, Inc. |
| Registration: | N171RD |
| MSN: | 15078530 |
| Year of manufacture: | 1976 |
| Total airframe hrs: | 9183 hours |
| Engine model: | Continental O-200-A |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Key Biscayne, FL -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Opa-Locka, FL (OPF) |
| Miami, FL (TMB) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The commercial pilot was conducting a personal flight. The pilot reported that, several minutes after takeoff and while en route to his destination airport, the engine began to run roughly and lose power. He subsequently attempted to restore power without success. He then maneuvered the airplane for a forced landing on the fairway of a golf course. The airplane touched down on wet grass, and the pilot was unable to stop the airplane before it collided with two palm trees, which separated the outboard sections of both wings.
Postaccident examination of the engine revealed that the intake valve of the No. 1 cylinder had failed due to fatigue, which would have resulted in the partial loss of engine power and engine roughness reported by the pilot. The origin and the extent of the fatigue region could not be determined due to postfracture damage. Further examination of the tip of the valve revealed an abnormal contact wear pattern likely caused by either misalignment relative to the valve seat, valve guide wear, or sticking between the valve stem and the valve guide. A review of maintenance records revealed that new cylinders had been installed when the engine was overhauled about 904 total flight hours before the accident.
Probable Cause: The fatigue failure of the No. 1 cylinder intake valve, which resulted in the partial loss of engine power.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=171RD
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 27-Oct-2015 01:33 | Geno | Added |
| 21-Dec-2016 19:30 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 01-Dec-2017 15:28 | ASN Update Bot | Updated [Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative] |
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