ASN Wikibase Occurrence # 161670
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| Date: | Thursday 24 October 2013 |
| Time: | 10:00 |
| Type: |  Piper PA-28-180 Cherokee |
| Owner/operator: | Private |
| Registration: | N30865 |
| MSN: | 283619 |
| Total airframe hrs: | 6553 hours |
| Engine model: | Lycoming O&VO-360 SER |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Sequoia Nat'l Forest, near Big Creek, CA -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Bishop, CA (BIH) |
| Fresno, CA (FCH) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot, who was a co-owner of the airplane, reported to an air traffic controller about 1 hour into a cross-country flight over mountainous terrain that the engine had lost oil pressure and then power. The pilot performed a forced landing into trees. Postaccident examination revealed that the loss of engine power resulted from oil starvation due to oil leaking from a fractured fitting at the oil pressure gauge/sending unit port on the engine’s rear accessory case. An oil pressure sending unit, which the pilot, who was not a certificated mechanic, had installed at this location just before the accident flight, was found dangling by its electrical wiring harness and not supported. The sending unit was not approved for installation on this airplane. It is likely that the fitting fractured because of vibration due to the sending unit’s lack of support. The engine operating time between the installation of the sending unit and the fitting fracture was about 1 hour.
Probable Cause: The loss of engine power due to the improper installation of an oil pressure sending unit by the pilot, who was not a certificated mechanic, which resulted in a forced landing in mountainous terrain.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 25-Oct-2013 01:42 | Geno | Added |
| 25-Oct-2013 01:43 | Geno | Updated [Source] |
| 25-Oct-2013 04:42 | Geno | Updated [Source, Damage, Narrative] |
| 30-Oct-2013 22:24 | Geno | Updated [Location, Departure airport, Destination airport, Source, Damage, Narrative] |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 29-Nov-2017 09:18 | ASN Update Bot | Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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