# NTSB ANC88LA017: Cessna 208, N9370F, Atmautluak, AK, November 18, 1987

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: November 18, 1987, 13:15 local (21:15 UTC)
- Place: Atmautluak, AK
- Location: 60.8612° N, 162.2833° W: Placed by OpenAirDocs: center of Atmautluak, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=60.8612&lon=-162.2833&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report October 6, 1988
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4976
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC88LA017
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4976/pdf
- Page: https://openairdocs.org/ntsb/ANC88LA017

## Sequence of events

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

- Airframe/component/system failure/malfunction, landing - roll
  - propeller governor control,bellcrank - failure,partial (cause)
  - propeller governor control,linkage - movement restricted (contributing factor)
- Loss of control - on ground/water, landing - roll
  - terrain condition - icy (contributing factor)
  - directional control - not maintained, pilot in command (contributing factor)
  - all available runway - not used, pilot in command (cause)
- Overrun, landing - roll

## Analysis

THE PILOT STATED THAT HE LANDED AT A DISTANCE APPROXIMATELY ONE-THIRD OF THE WAY DOWN THE 2,000 FOOT ICE COVERED GRAVEL RUNWAY. AFTER TOUCHDOWN THE PILOT LOST DIRECTIONAL CONTROL OF THE AIRCRAFT CAUSING THE AIRCRAFT TO EXIT THE DEPARTURE END OF THE RUNWAY. THE PROPELLER GOVERNOR WAS OUT OF RIG AND WOULD NOT GO INTO BETA RANGE DURING THE LANDING ROLL.

## Aircraft

- Registration: [N9370F](https://openairdocs.org/deregistered/N9370F-1992-06-25), registration cancelled 1992-06-25, S/N 20800029 (OpenAirDocs)
- Reported make and model: CESSNA 208
- Registry model: [Cessna 208](https://openairdocs.org/model/cessna-208) (registry code 2073702) (OpenAirDocs)
- Category: Airplane
- Serial number: 2080031
- Airframe hours: 2181
- Engines: P&W PT-6 600 horsepower turbo prop
- Damage: Substantial damage
- Flight: Part 135
- Registered owner: Ryan Air
- Airworthiness certificate: Standard, Normal
- Departed: BET, BETHEL, AK
- Flight plan: VFR
- Airport: 08AK, Atmautlwak, runway 15, 2,000 × 80 ft, ice

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 45; commercial, airline transport, flight instructor; airplane ratings: single-engine land, multi-engine land, single-engine sea; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 27,000 total, 33 in this make and model, 26,900 as pilot in command, 400 in the last 90 days, 110 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 25 °F, dew point 19 °F
- Altimeter: 30.00 inHg

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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