# NTSB ANC86LA128: Cessna 185-F, N3367R, Caribou Lake, AK, August 18, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 17, 1986, 20:00 local (Aug 18, 1986, 04:00 UTC)
- Place: Caribou Lake, AK
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4716
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC86LA128
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4716/pdf
- Page: https://openairdocs.org/ntsb/ANC86LA128

## Sequence of events

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

- Loss of control - on ground/water, takeoff - roll/run
  - preflight planning/preparation - improper, pilot in command (cause)
  - performance data - not understood, pilot in command (cause)
  - airspeed - not maintained, pilot in command (cause)
  - directional control - not maintained, pilot in command (cause)
- Nose over, takeoff - roll/run

## Analysis

THE AIRCRAFT SETTLED BACK ON THE WATER AND THE PILOT LOST CONTROL OF THE AIRCRAFT CAUSING IT TO NOSE OVER ON ITS BACK.

## Aircraft

- Registration: [N3367R](https://openairdocs.org/aircraft/N3367R), registered now, S/N 18502875 (OpenAirDocs)
- Reported make and model: CESSNA 185-F
- Registry model: [Cessna A185F](https://openairdocs.org/model/cessna-a185f) (registry code 2072821) (OpenAirDocs)
- Registry engine: [Continental IO-520-D](https://openairdocs.org/engine/continental-io-520-d) (registry code 17236, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 18502875
- Airframe hours: 1496
- Engines: CONTINENTAL IO 520-D 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 135
- Registered owner: Robert W. Gruber
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, October 7, 1985, 67 hours before
- Departed: HOM, HOMER, AK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 59; commercial; airplane ratings: multi-engine land, single-engine land, multi-engine sea, single-engine sea; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 25,915 total, 940 in this make and model, 25,699 as pilot in command, 25 in the last 90 days, 10 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 5 knots
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: 55 °F, dew point 30 °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 19860818043969A](https://openairdocs.org/incident/19860818043969A), Aug 18, 1986: Cessna A185F, Caribou Lake, AK, Substantial damage. Aircraft settled after water takeoff. Contacted wet grass and flipped over. Did not use full length of lake.

## Other investigations on N3367R (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 ANC76AA140](https://openairdocs.org/ntsb/ANC76AA140), Sep 24, 1976: Cessna A185F (N3367R), Seldovia, 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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