# Incident 20031130033159I: Cessna 207, Bethel, AK, November 30, 2003

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: November 30, 2003, 11:01 local time
- Place: Bethel, AK
- Phase of flight: Normal Cruise
- Operating rules: Air taxi and commuter (Part 135)
- Operator: B7TA
- Location: 60.7922° N, 161.7558° W: Placed by OpenAirDocs: center of Bethel, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=60.7922&lon=-161.7558&mi=10
- Aircraft: N91002, registered now (https://openairdocs.org/aircraft/N91002) (OpenAirDocs)
- Registry model: Cessna 207 (registry code 2073602, https://openairdocs.org/model/cessna-207) (OpenAirDocs)
- Registry engine: Continental IO-520 series (registry code 17032, https://openairdocs.org/engine/continental-io-520-series) (OpenAirDocs)
- Reported make and model: CESSNA 207
- Reported engine: CONT IO520F
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 3,877 total, 102 in this make and model, 85 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20031130033159I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) ON 11/30/03, DURING FLIGHT FROM BETHEL TO ANIAK, ALASKA, THE PILOT NOTICED A SMELL IN THE COCKPIT AND A RISE IN OIL TEMPERATURE. PILOT PULLED THE MANIFOLD PRESSURE BACK TO 23 INCHES AND WITHIN A FEW MINUTES THE PROP WENT TO HIGH RPM. PILOT MADE A 180 DEGREE TURN BACK TO BETHEL. THE ENGINE CONTINUED TO LOSE POWER AND THE PILOT DECIDED TO LAND WHEN THE OIL PRESSURE DROPPED TO ZERO. THE AIRCRAFT WAS FORCED TO LAND ON A LAKE NEAR AKIACHAK, ALASKA. (-23 AMENDMENT) ^PRIVACY DATA OMITTED^        : INSPECTION OF THIS ENGINE REVEALED #1 CYLINDER DETERIORATED DUE TO FUEL STARVATION FROM A CLOGGED FUEL INJECTOR LEANING OUT THE FUEL MIXTURE TO THIS CYLINDER. ALUMINUM PARTICLES CONTAMINATED THE OIL SYSTEM. THE OIL SYSTEM FEEDS FROM THE REAR OF THE CRANKSHAFT TO THE FRONT. PROGRESSIVE OIL PRESSURE LOSS IN THE FORWARD PART OF THE CRANKSHAFT PRECIPITATED THE OIL STARVATION OF #4 ROD BEARING WHICH OVERHEATED AND FAILED. THE ENGINE WAS SHUT DOWN PRIOR TO COMPLETE SEPARATION OF ROD AND CRANKSHAFT.

## Other reports on N91002 (3)

Matched to the same aircraft by N-number and date.

- [Accident 19971210038179A](https://openairdocs.org/incident/19971210038179A), Dec 10, 1997: Cessna 207 (N91002), Fruita, CO, Substantial damage. Aircraft lost power, landed in onion field, struck vegitation and nosed over no evidence of fuel at the scene (.4) the pilot said he did not visually check the…
- [Incident 19851103077179I](https://openairdocs.org/incident/19851103077179I), Nov 3, 1985: Cessna 207 (N91002), Lacrosse, WI. Engine became rough after takeoff. Landed in a field. Found number 4 connecting rod had failed.
- [Incident 19830223010329I](https://openairdocs.org/incident/19830223010329I), Feb 23, 1983: Cessna 207 (N91002), Faribault, MN. Engine surged. Made unscheduled landing. Exhaust rocker arm in #3 cylinder had failed.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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