# NTSB ANC89LA129: Cessna 206G, N6588Z, Iliamna, AK, July 27, 1989

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: July 26, 1989, 17:00 local (Jul 27, 1989, 01:00 UTC)
- Place: Iliamna, AK
- Coordinates: 59.85041, -154.559097 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=59.8504&lon=-154.5591&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 2 uninjured
- Status: Completed, report April 19, 1990
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5231
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC89LA129
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5231/pdf
- Page: https://openairdocs.org/ntsb/ANC89LA129

## Probable cause

IMPROPER PLANNING/DECISION BY THE PILOT & HIS FAILURE TO ATTAIN ADEQUATE SPEED TO FLY. THE TERRAIN (BANK) WAS A CONTRIBUTING FACTOR.

## 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
  - planning/decision - improper, pilot in command (cause)
  - airspeed - not attained, pilot in command (cause)
  - terrain condition - dirt bank/rising embankment (contributing factor)
- Nose over, takeoff

## Analysis

THE FLOATPLANE PLT HAD LANDED ON A LAKE TO 'PICKUP' TWO FISHERMEN. HE STATED THAT DRG A SUBSEQUENT TAKEOFF, THE TAKEOFF RUN WAS NORMAL ONTO THE STEP. AT THE DECISION POINT, HE BELIEVED THE ACFT WOULD FLY, SO HE CONTD THE TAKEOFF RUN; HOWEVER, THE ACFT DID NOT LIFT-OFF. SUBSEQUENTLY, IT STRUCK A BANK & NOSED OVER.

## Aircraft

- Registration: [N6588Z](https://openairdocs.org/deregistered/N6588Z-1995-02-06), registration cancelled 1995-02-06, S/N U20606329 (OpenAirDocs)
- Reported make and model: CESSNA 206G
- Registry model: [Cessna U206G](https://openairdocs.org/model/cessna-u206g) (registry code 2073356) (OpenAirDocs)
- Category: Airplane
- Serial number: U20606329
- Airframe hours: 4099
- Engines: CONTINENTAL IO-520 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Registered owner: Ray Petersen
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, June 27, 1989

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 41; airline transport; airplane ratings: multi-engine land, single-engine land, single-engine sea; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 8,000 total, 1,500 in this make and model, 8,000 as pilot in command, 265 in the last 90 days, 6 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: 55 °F, dew point 46 °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 19890726028099A](https://openairdocs.org/incident/19890726028099A), Jul 26, 1989: Cessna U206G, Iliamna, AK, Substantial damage. Unable to lift off the water on takeoff. Failed to abort and ran up on shore and flipped over.

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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