# NTSB ANC87LA147: Cessna 170B, N3410D, Skwentna, AK, September 15, 1987

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 14, 1987, 20:00 local (Sep 15, 1987, 04:00 UTC)
- Place: Skwentna, AK
- Location: 61.9903° N, 151.3978° W: Placed by OpenAirDocs: center of Skwentna, AK, within about 12 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=61.9903&lon=-151.3978&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report May 27, 1988
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4910
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC87LA147
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4910/pdf
- Page: https://openairdocs.org/ntsb/ANC87LA147

## 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
  - terrain condition - soft (contributing factor)
  - terrain condition - wet (contributing factor)
  - directional control - not maintained, pilot in command (cause)
- Nose down, takeoff - roll/run

## Analysis

THE PILOT STATED THAT DURING THE TAKE OFF ROLL HE LOST DIRECTIONAL CONTROL OF THE AIRCRAFT CAUSING THE AIRCRAFT TO NOSE OVER. HE ALSO INDICATED THAT THE PRIVATE STRIP WAS NEW AND THAT THE DIRT RWY WAS WET AND SOFT.

## Aircraft

- Registration: [N3410D](https://openairdocs.org/aircraft/N3410D), registered now, S/N 26953, built 1955 (OpenAirDocs)
- Reported make and model: CESSNA 170B
- Registry model: [Cessna 170B](https://openairdocs.org/model/cessna-170b) (registry code 2072306) (OpenAirDocs)
- Registry engine: [Continental 0-300 series](https://openairdocs.org/engine/continental-0-300-series) (registry code 17022, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 26953
- Engines: CONTINENTAL O-300-A 145 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: James D. Ferry
- Registered owner: James D. Ferry
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 5, 1987, 47 hours before
- Departed: 222, WILLOW, AK
- Airport: Private Strip, runway 9, 1,100 ×  ft, dirt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 44; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 360 total, 360 in this make and model, 349 as pilot in command, 26 in the last 90 days, 10 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 35 statute miles
- Lowest ceiling: none
- Temperature: 61 °F, dew point 39 °F
- Altimeter: 29.00 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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