ASN Wikibase Occurrence # 286633
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| Date: | Thursday 27 August 2009 |
| Time: | 06:30 LT |
| Type: |  Cessna 210K |
| Owner/operator: | Sedona Sky Treks Inc |
| Registration: | N4600Q |
| MSN: | 21059500 |
| Year of manufacture: | 1971 |
| Total airframe hrs: | 8192 hours |
| Engine model: | Continental IO-520 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Show Low, Arizona -
 United States of America
|
| Phase: | En route |
| Nature: | Unknown |
| Departure airport: | Flagstaff-Pulliam Airport, AZ (FLG/KFLG) |
| Show Low Airport, AZ (SOW/KSOW) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that during cruise flight he observed an oil pressure reading of zero, followed about 4 minutes later by a total loss of engine power. He made a successful forced landing to an open meadow, which resulted in substantial damage to the engine's firewall. A post accident examination of the engine revealed that the engine's crankshaft and connecting rod bearings exhibited lubrication distress and thermal damage, and that the number 3 crankshaft main bearing exhibited lubrication distress. It was also observed that a gasket located between the STC oil filter adapter and the oil pump housing was displaced and contained dark stains. STC instructions require that after the oil filter adapter has been installed, to re-torque the adapter after 10 hours of operation. An airframe and power plant mechanic stated that he had re-torqued the oil filter adapter, but could not produce a record of the completed maintenance action.
Probable Cause: A total loss of engine power due to the displaced oil filter adapter gasket, which resulted in an oil leak and oil exhaustion. Contributing to the accident was the unsuitable terrain for a forced landing.
Accident investigation:
 |
|
Sources:
NTSB WPR09LA422
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 03-Oct-2022 13:44 | ASN Update Bot | Added |
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