ASN Wikibase Occurrence # 179798
This record has been locked for editing.
| Date: | Tuesday 22 September 2015 |
| Time: | 14:26 |
| Type: |  Van's RV-6A |
| Owner/operator: | Private |
| Registration: | N215DG |
| MSN: | 23218 |
| Year of manufacture: | 1997 |
| Total airframe hrs: | 627 hours |
| Engine model: | Lycoming O-320-H2AD |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | near Sandusky City Airport (Y83), Sandusky, MI -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Sandusky, MI (Y83) |
| Ray, MI (57D) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that, while in cruise flight, he smelled an odor and subsequently confirmed that the engine had lost oil pressure. The pilot believed that the airplane would not be able to reach an airport, so he decided to shut down the engine and make a precautionary landing to a nearby dirt road. Shortly before touchdown, the pilot saw obstacles near the road, so he banked the airplane left toward an open field to avoid them. The airplane landed hard in the field and subsequently nosed over.
A postaccident examination revealed that the lower fuselage and the sides of the fuselage were covered in engine oil. Further examination established that the oil filter had disengaged from the adapter assembly and was the source of the loss of engine oil during the accident flight. The oil filter adapter assembly had been modified for a spin-on oil filter; however, the modification had not been completed in accordance with the installation instructions, and, as such, an incorrect oil filter had been used. It is likely that the incorrect modification of the oil filter adapter assembly resulted in a lack of proper thread engagement with the adapter heli-coil, the subsequent separation of the oil filter, and the corresponding loss of engine oil during the accident flight. A review of the engine maintenance logbook established that the incorrect oil filter adapter assembly modification and the corresponding incorrect oil filter had likely been used since the last engine overhaul, which was completed 18 years before the accident. The engine had accumulated 627 hours since the last overhaul.
Probable Cause: The in-flight loss of engine oil after the oil filter separated from the engine adapter assembly because of an incorrect modification of the oil filter adapter assembly, which resulted in a precautionary landing in a field.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=215DG
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 23-Sep-2015 00:49 | Geno | Added |
| 24-Sep-2015 05:01 | Geno | Updated [Aircraft type, Registration, Cn, Operator, Source, Narrative] |
| 25-Jun-2016 20:23 | junior sjc | Updated [Aircraft type] |
| 16-Aug-2016 06:19 | junior sjc | Updated [Location, Narrative] |
| 21-Dec-2016 19:30 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 25-Jun-2017 18:43 | junior sjc | Updated [Nature, Departure airport, Narrative] |
| 01-Dec-2017 15:25 | ASN Update Bot | Updated [Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative] |
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