# NTSB ANC92LA068: Cessna 180, N2940C, Kenai, AK, May 9, 1992

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 8, 1992, 17:30 local (May 9, 1992, 01:30 UTC)
- Place: Kenai, AK
- Coordinates: 60.659626, -150.899246 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=60.6596&lon=-150.8992&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report June 21, 1993
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5720
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC92LA068
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5720/pdf
- Page: https://openairdocs.org/ntsb/ANC92LA068

## Probable cause

THE PILOT'S IMPROPER USE OF CARBURETOR HEAT WHICH RESULTED IN LOSS OF ENGINE POWER DUE TO CARBURETOR ICE.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of engine power(total) - nonmechanical, approach - vfr pattern - base turn
  - fuel system,carburetor - ice (cause)
  - carburetor heat - improper use of, pilot in command (cause)
- In flight collision with object, descent - emergency

## Analysis

THE PILOT WAS ON THE BASE LEG FOR LANDING ON THE KENAI RIVER WHEN THE ENGINE STOPPED PRODUCING POWER.  HE WAS UNABLE TO GLIDE TO THE RIVER SO HE LANDED ON A ROAD.  DURING THE FORCED LANDING SEQUENCE THE AIRPLANE STRUCK SOME TREES BEFORE LANDING ON THE ROAD.  EXAMINATION OF THE AIRPLANE AND ENGINE SHOWED NO MECHANICAL MALFUNCTION.  THE PILOT STATED HE FELT IT WAS CARBURETOR ICE WHICH CAUSED THE POWER LOSS.  HE WAS CARRYING ONLY 15 INCHES OF MANIFOLD PRESSURE DURING THE MANEUVERING AND TRAFFIC PATTERN AND HAD APPLIED CARBURETOR HEAT.  HE DID NOT KNOW IF THE CARBURETOR HEAT WAS OPERATING.

## Aircraft

- Registration: [N2940C](https://openairdocs.org/deregistered/N2940C-2018-05-30), registration cancelled 2018-05-30, S/N 30840, built 1954 (OpenAirDocs)
- Reported make and model: CESSNA 180
- Registry model: [Cessna 180](https://openairdocs.org/model/cessna-180) (registry code 2072602) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 30840
- Airframe hours: 2779
- Engines: CONTINENTAL O-470-K 230 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Ralph Wellborn
- Registered owner: Lowell Suydam
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 21, 1991, 79 hours before
- Departed: JACKOLOFF BAY, AK
- Destination: KENAI RIVER, AK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; private; airplane ratings: single-engine sea, single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 299 total, 25 in this make and model, 236 as pilot in command, 22 in the last 90 days, 14 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 39 °F

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19920508014029A](https://openairdocs.org/incident/19920508014029A), May 8, 1992: Cessna 180, Kenai, AK, Substantial damage. Engine quit turning base to land floatplane on river. Unable river hit trees landing on road. Blamed carburetor ice

## Other investigations on N2940C (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB ANC87LA073](https://openairdocs.org/ntsb/ANC87LA073), May 29, 1987: Cessna 180 (N2940C), Naknek, AK, substantial damage

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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