ASN Wikibase Occurrence # 289913
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| Date: | Friday 5 July 2013 |
| Time: | 11:30 LT |
| Type: |  Piper PA-46-350P Malibu Mirage |
| Owner/operator: | Private |
| Registration: | N502EU |
| MSN: | 4622182 |
| Year of manufacture: | 1995 |
| Total airframe hrs: | 1584 hours |
| Engine model: | Lycoming TIO-540-AE2A |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Nappanee, Indiana -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Elkhart Municipal Airport, IN (EKI/KEKM) |
| Indianapolis Executive Airport, IN (KTYQ) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that, upon leveling the airplane at the assigned cruise altitude, he heard three loud "bangs" and that the engine oil pressure and temperature indications exceeded the gauge limits. He was unable to maintain altitude and subsequently executed a forced landing to a field. A postaccident engine examination revealed that a portion of the No. 6 piston face had separated along the perimeter due to detonation within the cylinder during operation. The No. 5 connecting rod had separated near the crankshaft journal, and the lower portion of the engine crankcase exhibited a hole immediately above the oil sump. Metallic fragments were recovered from the oil sump, oil sump screen, and oil filter. Piston fragments likely interrupted the oil flow within the engine, which resulted in the failure of the No. 5 connecting rod.
Probable Cause: The failure of the No. 6 piston due to detonation and the subsequent interruption of the engine oil flow that resulted from the piston fragments.
Accident investigation:
 |
|
Sources:
NTSB CEN13LA397
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 05-Oct-2022 19:42 | ASN Update Bot | Added |
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