ASN Wikibase Occurrence # 58761
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| Date: | Tuesday 17 February 2009 |
| Time: | 16:30 LT |
| Type: |  Cessna 150L |
| Owner/operator: | Private/Palwaukee Flyers |
| Registration: | N747KA |
| MSN: | 15073454 |
| Year of manufacture: | 1972 |
| Total airframe hrs: | 9597 hours |
| Engine model: | Continental O-200 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | None |
| Category: | Serious incident |
| Location: | Grayslake, Illinois -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Private |
| Departure airport: | Chicago-Executive Airport, IL (PWK/KPWK) |
| Chicago-Executive Airport, IL (PWK/KPWK) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot rented the airplane for a local flight with the passenger. While maneuvering, the airplane experienced a partial loss of engine power and the pilot could not maintain altitude. The pilot elected to perform a precautionary landing to a frozen lake and landed uneventfully. Examination of the engine revealed that the Number 1 cylinder intake valve had fractured. The cause of the failure could not be determined. The operator exceeded the engine manufacturer's recommended time between overhaul by over 1,600 hours. However, because the operator operated under Part 91, they were not subject to the Federal regulations that require compliance with manufacturers' recommended maintenance instructions.
Probable Cause: The failure of the number 1 cylinder intake valve which resulted in a partial loss of engine power. Contributing to the incident was the failure of the operator to maintain the engine per manufacturer's recommendations.
Accident investigation:
 |
|
Sources:
NTSB CEN09IA172
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 18-Feb-2009 21:28 | slowkid | Added |
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 29-Apr-2020 12:25 | Anon. | Updated [Narrative] |
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