# NTSB ANC84LA170: Cessna A185F-II, N61556, Iliamna, AK, September 9, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 9, 1984, 07:30 local (15:30 UTC)
- Place: Iliamna, AK
- Coordinates: 59.849079, -154.56018 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=59.8491&lon=-154.5602&mi=10
- 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): 4366
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC84LA170
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4366/pdf
- Page: https://openairdocs.org/ntsb/ANC84LA170

## Sequence of events

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

- On ground/water encounter with terrain/water, takeoff
  - preflight planning/preparation - inadequate, pilot in command (cause)
  - terrain condition - water,glassy
  - aborted takeoff - delayed, pilot in command (cause)
  - terrain condition - dirt bank/rising embankment (contributing factor)
  - terrain condition - high vegetation (contributing factor)

## Analysis

THE FLOAT PLANE PLT BEGAN TAKING OFF FROM A SMALL LAKE IN CALM WIND & GLASSY WATER CONDITIONS. REALIZING THE SITUATION WAS MARGINAL, HE REDUCED POWER TO ABORT (BEFORE LIFTING OFF) & BEGAN A STEP TURN TO THE LEFT. THE PLT REPORTED THAT THE RADIUS OF THE TURN WAS LARGER THAN THE POND'S SHORELINE. BEFORE STOPPING, THE ACFT HIT THE BANK, WHICH WAS ABOUT 12 INCHES HIGH & CONTINUED ABOUT 20 FT THROUGH SMALL SPRUCE TREES.

## Aircraft

- Registration: [N61556](https://openairdocs.org/aircraft/N61556), registered now, S/N 18504230, built 1981 (OpenAirDocs)
- Reported make and model: CESSNA A185F-II
- Registry model: [Cessna A185F](https://openairdocs.org/model/cessna-a185f) (registry code 2072821) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 18504230
- Airframe hours: 374
- Engines: CONTINENTAL IO-520-D 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Operator: Iliamna Lake Lodge
- Registered owner: Richard Patredis
- Airworthiness certificate: Standard, Normal; Standard, Utility
- Last inspection: Annual, September 8, 1983, 212 hours before
- Departed: BIG MOUNTAIN LK, AK
- Destination: ILIAMNA LAKE, AK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 30; airline transport, commercial; airplane ratings: multi-engine land, single-engine land, single-engine sea; instrument ratings: airplane; medical: class 1, expired; seat: left; flight hours: 3,620 total, 480 in this make and model, 3,400 as pilot in command, 242 in the last 90 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 70 statute miles
- Lowest ceiling: none
- Temperature: 50 °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 19840909047819A](https://openairdocs.org/incident/19840909047819A), Sep 9, 1984: Cessna A185F, Iliamna, AK, Substantial damage. Attempted takeoff out of step turn and failed to maintain directional control. Ran into bank, trees, and small pond

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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