ASN Wikibase Occurrence # 140955
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| Date: | Saturday 31 December 2011 |
| Time: | 12:20 |
| Type: |  Piper PA-32-260 Cherokee Six |
| Owner/operator: | Private |
| Registration: | N997TB |
| MSN: | 32-508 |
| Year of manufacture: | 1966 |
| Total airframe hrs: | 6712 hours |
| Engine model: | Lycoming O-540-E4B5 |
| Fatalities: | Fatalities: 0 / Occupants: 5 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Near Elk Rapids Township, MI -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Traverse City, MI (TVC) |
| Traverse City, MI (TVC) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that the airplane was in cruise flight when the engine started to run rough and vibrate. He adjusted and checked the fuel mixture, throttle, magnetos, boost pump, and carburetor heat, but the vibration continued to get worse. He executed a forced landing to a field, but the airplane impacted a line of trees at the end of the field. Postaccident examination of the engine revealed that the No. 1 cylinder exhaust valve was broken with about 50 percent of the valve face missing. The engine logbooks revealed that the engine was overhauled in 1994 and had accumulated 1,972.3 hours since the last overhaul. The engine manufacturer recommends that the engine be overhauled every 2,000 hours or after 12 years since last overhaul.
Probable Cause: The loss of engine power due to the failure of the exhaust valve.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 01-Jan-2012 03:58 | gerard57 | Added |
| 01-Jan-2012 04:49 | RobertMB | Updated [Aircraft type, Registration, Cn, Operator, Location, Departure airport, Damage, Narrative] |
| 11-Jan-2012 00:32 | Geno | Updated [Time, Source, Narrative] |
| 21-Dec-2016 19:26 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 27-Nov-2017 17:38 | ASN Update Bot | Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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