# NTSB SEA82DA158: Stinson 108-1, N97781, Twin Falls, ID, September 8, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: September 8, 1982, 09:14 local (16:14 UTC)
- Place: Twin Falls, ID
- Coordinates: 42.409309, -114.589859 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.4093&lon=-114.5899&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 8, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 72890
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA82DA158
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/72890/pdf
- Page: https://openairdocs.org/ntsb/SEA82DA158

## Sequence of events

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

- Loss of control - on ground/water, landing - roll
  - ground loop/swerve - not corrected, pilot in command
  - touch-and-go - performed, pilot in command (cause)
  - directional control - not maintained, pilot in command
- Nose over, landing - roll

## Analysis

PILOT GROUND LOOPED WHILE DOING TOUCH AND GO LANDINGS. WIND 5 KTS.

## Aircraft

- Registration: [N97781](https://openairdocs.org/aircraft/N97781), registered now, S/N 108-781, built 1946 (OpenAirDocs)
- Reported make and model: STINSON 108-1
- Registry model: [Stinson 108-1](https://openairdocs.org/model/stinson-108-1) (registry code 9230404) (OpenAirDocs)
- Registry engine: [Franklin 6A4150 series](https://openairdocs.org/engine/franklin-6a4150-series) (registry code 27024, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 108-1-781
- Engines: FRANKLIN 6A4-150-B3 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Robert L. Archer
- Registered owner: Robert L. Archer
- Departed: BYI, BURLEY, ID
- Destination: BOISE CITY, OK
- Airport: TWF, Twin Falls-Olsen Fld, runway 7, 7,152 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 57; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; flight hours: 358 total, 65 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 30° at 8 knots
- Visibility: 30 statute miles
- Temperature: 163 °F
- Altimeter: 30.00 inHg
- Observed at: TWF

## 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 19820908044769A](https://openairdocs.org/incident/19820908044769A), Sep 8, 1982: Univar 1081, Twin Falls, ID, Substantial damage. Lost directional control on landing, ground looped and flipped over.

## Other investigations on N97781 (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 SEA90LA061](https://openairdocs.org/ntsb/SEA90LA061), Apr 5, 1990: Stinson 108-1 (N97781), Boise, ID, substantial damage. Probable cause: PILOT DID NOT MAINTAIN DIRECTIONAL CONTROL OF THE AIRPLANE DURING THE LANDING ROLL.

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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