# Incident 19970215007869I: Cessna STC170, Koyuk, AK, February 15, 1997

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: February 15, 1997, 14:00 local time
- Place: Koyuk, AK
- Phase of flight: Fcd/Prec Ldg From Cruise
- Operating rules: General operating rules (Part 91)
- Location: 64.9413° N, 161.1451° W: Placed by OpenAirDocs: center of Koyuk, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=64.9413&lon=-161.1451&mi=10
- Aircraft: N3464C, registered now (https://openairdocs.org/aircraft/N3464C) (OpenAirDocs)
- Registry model: Cessna 170B (registry code 2072306, https://openairdocs.org/model/cessna-170b) (OpenAirDocs)
- Registry engine: Continental 0-300 series (registry code 17022, https://openairdocs.org/engine/continental-0-300-series) (OpenAirDocs)
- Reported make and model: CESSNA STC170
- Reported engine: FRNKLN 6A350*
- People aboard: 2
- Fatal injuries: 0
- Pilot flight hours: 12,500 total, 3,500 in this make and model, 200 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19970215007869I

## Narrative

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

NARRATIVE: PILOT REPORTED HE AND HIS PASSENGR WERE REINDEER SPOTTING NORTH OF KOYUK, AK, ON 2/15/97 WHEN HIS ENGINE STARTED RUNNING ROUGH. HE LANDED HIS SKI EQUIPPED AIRCRAFT ON THE FROZEN KIWALIK RIVER APROX. 34 MILES N.W. OF KOYUK. THERE WAS NO DAMAGE OR INJURIES. ON FINAL APPROACH TO LANDING OIL WAS NOTED COMING FROM THE ENGINE AND SPRAYING ONTO THE WINDSHIELD. AFTER LANDING MR. OLSON WHO IS ALSO A CERTIFICATED A&P MECHANIC WITH I.A. RATING INSPECTED THE ENGINE.(CERT.#574229910) HE FOUND THE TOP OF THE ENGINE COATED WITH OIL BUT COULD NOT IDENTIFY THE SOURCE. ANOTHER ENGINE WAS BROUGHT IN AND THE OLD ONE REPLACED. NO FURTHER PROBLEM FOLLOWING THE ENGINE CHANGE.

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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