# NTSB ANC83LA002: Rockwell International Stinson 108, N97451, Near Sparrevohn, AK, October 2, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: October 2, 1982, 00:18 local (08:18 UTC)
- Place: Near Sparrevohn, AK
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 2, 1983
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 71932
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC83LA002
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/71932/pdf
- Page: https://openairdocs.org/ntsb/ANC83LA002

## 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
  - fuel system,carburetor - ice (contributing factor)
  - carburetor heat - improper use of, pilot in command (cause)
  - fatigue, pilot in command (cause)
  - airport facilities,runway/landing area condition - inadequate (contributing factor)
  - aircraft preflight - improper, pilot in command (cause)
  - self-induced pressure, pilot in command (cause)
- In flight collision with terrain/water, takeoff - initial climb

## Analysis

THE PILOT STATED THAT AFTER SHOOTING A MOOSE IN THE MORNING, QUARTERING THE ANIMAL AND CARRYING THE MEAT TO THE AN UNIMPROVED LANDING/TAKEOFF AREA HE WALKED BACK TO HIS CABIN FOR HIS AIRCRAFT. UPON HIS RETURN, HE LANDED AND LOADED 2 QUARTERS INTO THE BACK SEAT. IT WAS NOW 5:30PM AND STARTING TO SNOW. HE TAXIED FOR TAKEOFF WITHOUT ACCOMPLISHING A RUN-UP. WHILE TAXIING HE EXPERIENCED DIFFICULTY WITH THE WINDSHIELD FOGGING AND ALTHOUGH IN A HURRY MANAGED TO CLEAN THE WINDSHIELD. WHEN HE REACHED THE END OF THE STRIP HE IMMEDIATELY BEGAN THE TAKEOFF. THE AIRCRAFT FAILED TO ACCELERATE PROPERLY DURING TAKEOFF AND SETTLED BACK TO THE SURFACE AT THE END OF THE STRIP. THE PILOT BELIEVED THAT CARBURETOR ICE AND ROUGH RUNWAY CONTRIBUTED TO THE LACK OF ACCELERATION.

## Aircraft

- Registration: [N97451](https://openairdocs.org/deregistered/N97451-2015-04-30), registration cancelled 2015-04-30, S/N 108-451, built 1946 (OpenAirDocs)
- Reported make and model: ROCKWELL INTERNATIONAL STINSON 108 (STINSON 10)
- Registry model: [Stinson 108](https://openairdocs.org/model/stinson-108) (registry code 9230402) (OpenAirDocs)
- Registry engine: [Franklin 6A4150 series](https://openairdocs.org/engine/franklin-6a4150-series) (registry code 27024, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 108451
- Airframe hours: 145
- Engines: LYCOMING IO-435C 190 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: John D. Shockley
- Registered owner: John D. Shockley
- Departed: NEAR SPARREVOHN, AK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 43; student; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; flight hours: 159 total, 77 in this make and model, 124 as pilot in command, 57 in the last 90 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Dusk
- Wind: 33° at 3 knots
- Visibility: 6 statute miles
- Temperature: 82 °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 19821002068229A](https://openairdocs.org/incident/19821002068229A), Oct 2, 1982: Univar 108, Sparrevohn, AK, Substantial damage. Aircraft hit bushes off end of runway during takeoff causing aircraft to flip inverted.

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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