# NTSB ANC86LA104: Cessna 170, N3864V, Fairbanks, AK, July 8, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 8, 1986, 11:30 local (19:30 UTC)
- Place: Fairbanks, AK
- Coordinates: 64.809761, -147.719741 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=64.8098&lon=-147.7197&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4698
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC86LA104
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4698/pdf
- Page: https://openairdocs.org/ntsb/ANC86LA104

## Sequence of events

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

- Loss of engine power(total) - nonmechanical, maneuvering
  - fuel system,carburetor - ice (cause)
  - in-flight planning/decision - improper, pilot in command (contributing factor)
  - carburetor heat - improper use of, pilot in command (cause)
- Forced landing, descent - emergency
- On ground/water encounter with terrain/water, landing - roll

## Analysis

THE PLT REPORTED EXPERIENCING A TOTAL LOSS OF PWR DURING CRUISE FLT. HE STATED HE SWITCHED FUEL TANKS AND WAS TEMPORARILY ABLE TO REGAIN PWR BEFORE EXPERIENCING A SECOND TOTAL LOSS. SUBSTANTIAL DAMAGE RESULTED DURING THE FORCED LANDING. DURING POST ACCIDENT TESTS THE ACFT ENG WAS STARTED AND OPERATED SUCCUSSFULLY. THE PLT REPORTED HE SHOULD HAVE MONITORED THE CARB HEAT MORE CLOSELY.

## Aircraft

- Registration: [N3864V](https://openairdocs.org/deregistered/N3864V-2012-09-21), registration cancelled 2012-09-21, S/N 18751, built 1949 (OpenAirDocs)
- Reported make and model: CESSNA 170
- Registry model: [Cessna 170A](https://openairdocs.org/model/cessna-170a) (registry code 2072304) (OpenAirDocs)
- Registry engine: [Continental C145 series](https://openairdocs.org/engine/continental-c145-series) (registry code 17012, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 18751
- Airframe hours: 2537
- Engines: CONTINENTAL C-145 145 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Jerry Cain
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 24, 1986, 20 hours before
- Departed: N. INIAKUK LAKE, AK
- Destination: FAI, FAIRBANKS, AK
- Flight plan: VFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 40; private; airplane ratings: single-engine sea, single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 521 total, 306 in this make and model, 438 as pilot in command, 17 in the last 90 days, 6 in the last 30 days, 6 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 64 °F, dew point 55 °F
- Altimeter: 29.00 inHg

## 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 19860708037389A](https://openairdocs.org/incident/19860708037389A), Jul 8, 1986: Cessna 170A, Fairbanks, AK, Substantial damage. Landed in a field after engine quit en route. Suspect carburetor icing.

## Other investigations on N3864V (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 ANC81DAG32](https://openairdocs.org/ntsb/ANC81DAG32), Mar 13, 1981: Cessna 170A (N3864V), Anchorage, 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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