ASN Wikibase Occurrence # 297095
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| Date: | Saturday 22 June 2002 |
| Time: | 11:00 LT |
| Type: |  Glasair II-SRG |
| Owner/operator: | Private |
| Registration: | N676EC |
| MSN: | 2163 |
| Total airframe hrs: | 318 hours |
| Engine model: | Lycoming IO-360-BIE |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | MILL HALL, Pennsylvania -
 United States of America
|
| Phase: | Unknown |
| Nature: | Private |
| Departure airport: | Lock Haven-W T Piper Memorial Airport, PA (LHV/KLHV) |
| Parkersburg-Mid-Ohio Valley Regional Airport, WV (PKB/KPKB) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
Shortly after take-off, the pilot reported that the engine began to run rough, backfire, and vibrate severely, along with an increase in oil temperature. Examination of the engine revealed that the crankshaft was fractured through the #3 main bearing journal. Fluorescent magnetic particle inspection of the crankshaft revealed over 50 axial cracks in the #3 main bearing journal. Examination of the three of the cracks revealed that each exhibited rehardening, rehardening and slight tempering, and tempering, consistent with a lack of lubrication. The engine was last overhauled in 1993, at which time, the crankshaft was replaced. The pilot reported that he bought the engine in 1993 from the individual who performed the overhaul. He said there were no maintenance logbooks for the engine, and the service history of the crankshaft was unknown.
Probable Cause: The failure of the crankshaft due to a lack of lubrication.
Accident investigation:
 |
|
Sources:
NTSB IAD02LA062
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 14-Oct-2022 14:21 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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