# NTSB ANC92LA057: Cessna U206G, N9909Z, Kotzebue, AK, April 2, 1992

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 2, 1992, 10:15 local (14:15 UTC)
- Place: Kotzebue, AK
- Coordinates: 67.240516, -161.189025 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=67.2405&lon=-161.1890&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report May 26, 1993
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5709
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC92LA057
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5709/pdf
- Page: https://openairdocs.org/ntsb/ANC92LA057

## Probable cause

THE PILOT'S FAILURE TO REMOVE ALL THE FROST FROM THE AIRPLANE AND EXCEEDING THE GROSS WEIGHT LIMIT OF THE AIRPLANE.

## Sequence of events

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

- Loss of control - in flight, takeoff - initial climb
  - ice/frost removal from aircraft - inadequate, pilot in command (cause)
  - aircraft weight and balance - exceeded, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

DURING THE TAKEOFF THE AIRPLANE PITCHED UP AND THE WINGS ROCKED FROM SIDE TO SIDE AND THEN THE AIRPLANE SETTLED AND CRASHED INTO THE SNOWBANK AND NOSED OVER.  THE PILOT STATED THERE WAS FROST ON THE WINGS BUT HE BRUSHED IT OFF. EXAMINATION OF THE WING'S UPPER SURFACE REVEALED THAT FROST REMAINED ON THE UPPER SURFACE.  EXAMINATION OF THE CARGO, AIRPLANE, AND FUEL INFORMATION SHOWED THAT THE AIRPLANE WEIGHED 3700 POUNDS.  THE CERTIFICATED GROSS WEIGHT OF THE AIRPLANE WAS 3600 POUNDS.

## Aircraft

- Registration: [N9909Z](https://openairdocs.org/aircraft/N9909Z), registered now, S/N U20606740, built 1983 (OpenAirDocs)
- Reported make and model: CESSNA U206G
- Registry model: [Cessna U206G](https://openairdocs.org/model/cessna-u206g) (registry code 2073356) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: U20606740
- Airframe hours: 5336
- Engines: CONTINENTAL IO-520-F 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 135
- Operator: Bering Air, Inc.
- Registered owner: Bering Air, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: AAIP, January 28, 1992, 32 hours before
- Destination: PHO, POINT HOPE, AK
- Flight plan: VFR
- Airport: OTZ, Kotzebue, runway 8, 5,900 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 33; airline transport, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 4,800 total, 160 in this make and model, 4,600 as pilot in command, 208 in the last 90 days, 13 in the last 30 days, 7 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 70° at 7 knots
- Visibility: 3 statute miles
- Lowest ceiling: none
- Temperature: -9 °F
- Altimeter: 30.00 inHg
- Observed at: OTZ, 1 nm away

## 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 19920402008319A](https://openairdocs.org/incident/19920402008319A), Apr 2, 1992: Cessna U206G, Kotzebue, AK, Substantial damage. Aircraft lifted off in nose high attitude. Settled back to runway. Attempted to take off. Hit snowbank. Nosed over.

## Other investigations on N9909Z (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 ANC05CA019](https://openairdocs.org/ntsb/ANC05CA019), Dec 24, 2004: Cessna U206G (N9909Z), Illiamna, AK, substantial damage. Probable cause: The pilot's inadequate compensation for the gusty wind conditions, which resulted in a loss of control, and the airplane nosing over. A factor contributing to the accident was the gusty wind…

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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