ASN Wikibase Occurrence # 286768
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| Date: | Thursday 23 July 2009 |
| Time: | 18:15 LT |
| Type: |  Cessna 150H |
| Owner/operator: | Private |
| Registration: | N22278 |
| MSN: | 15068187 |
| Year of manufacture: | 1968 |
| Total airframe hrs: | 13051 hours |
| Engine model: | Continental O-200 SERIES |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Washougal, Washington -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Private |
| Departure airport: | Washougal, WA (4WA1) |
| Washougal, WA (4WA1) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that the airplane's engine lost power immediately after takeoff from a private airfield. The left wing then struck a large tree and the airplane subsequently crashed into wooded terrain, which resulted in structural damage to both wings and fuselage. Post accident examination of the engine disclosed that the (top) electrode areas of the spark plugs were oil soaked, and severe wear was noted to the ground and center electrodes. Further examination revealed that the number 4 cylinder exhaust valve was stuck in the open position. The valve remained stuck during a functional check and was later removed utilizing a punch and heavy hammer. A dark brown material and smearing was noted along the exhaust valve neck. Comparable material and smearing was observed along the interior surface of the exhaust valve guide. No additional mechanical anomalies were noted with the engine.
Probable Cause: A loss of engine power during initial climb due to a stuck exhaust valve.
Accident investigation:
 |
|
Sources:
NTSB WPR09LA364
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 03-Oct-2022 15:49 | ASN Update Bot | Added |
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