ASN Wikibase Occurrence # 69798
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| Date: | Monday 2 November 2009 |
| Time: | 14:03 |
| Type: |  Piper PA-28-180 Cherokee C |
| Owner/operator: | Private |
| Registration: | N8364W |
| MSN: | 28-2559 |
| Year of manufacture: | 1965 |
| Engine model: | Lycoming O-360-A3A |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Coldwater, Michigan -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Pontiac, MI (PTK) |
| Champagne, IL (CMI) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that he was in cruise flight at 2,500 feet above mean sea level when the engine oil temperatures started to rise. He started to divert to a nearby airport, but the engine seized and he executed a forced landing to a field. The inspection of the engine revealed a hole in the crankcase at the #4 cylinder position. The #4 piston connecting rod was found disconnected from the crankshaft, and it was deformed and bent into a “U” shape. The #4 connecting rod cap was separated from the #4 connecting rod. One of the connecting rod bolts was found sheared in half with the nut still attached to one end of the bolt. The other connecting rod bolt was not located in the connecting rod or in the rod cap. A connecting rod bolt was found in the bottom of the engine. The bolt threads exhibited some impact damage, but otherwise, the connecting rod bolt was intact and was not bent. The nut for the connecting rod bolt was not located in the engine. The engine logbook indicated that four new pistons were installed on May 31, 2003. The logbook entry did not indicate that the connecting rods had been replaced. On May 1, 2007, the #4 cylinder was replaced, but there was no indication in the logbook entry that the #4 piston or connecting rod had been repaired or replaced.
Probable Cause: A loss of engine power due to the separation of the No. 4 piston connecting rod as a result of inadequate torque of the connecting rod bolt.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 03-Nov-2009 08:44 | Geno | Added |
| 03-Nov-2009 09:29 | RobertMB | Updated |
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 02-Dec-2017 17:49 | ASN Update Bot | Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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