# NTSB SEA79DYM10: Stinson 108-3, N6470M, Dallesport, WA, January 14, 1979

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: January 14, 1979
- Place: Dallesport, WA · DALLESPORT, WA
- Location: 45.6316° N, 121.1689° W: Placed by OpenAirDocs: center of Dallesport, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=45.6316&lon=-121.1689&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report February 6, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 137697
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA79DYM10
- Page: https://openairdocs.org/ntsb/SEA79DYM10

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0041  79/1/14    DALLESPORT,WA       STINSON 108-3       CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 66, 4101
        TIME - UNK/NR                  N6470M              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 500 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - THE DALLES
        DEPARTURE POINT             INTENDED DESTINATION
          VANCOUVER,WA                DALLESPORT,WA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
           COLLIDED WITH: SNOWBANK                                  LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - SELECTED UNSUITABLE TERRAIN
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: SNOW ON RUNWAY
        FACTOR(S)
           WEATHER - LOW CEILING
           WEATHER - FOG
        WEATHER BRIEFING - UNKNOWN/NOT REPORTED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OBSCURATION                                               0
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          2 MILES OR LESS                                          NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          FOG                                                       26
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
           70                                                       3
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          BELOW MINIMUMS                                           NONE
        REMARKS- LND IN DEEP SNOW.
```

## Aircraft

- Registration: [N6470M](https://openairdocs.org/aircraft/N6470M), registered now, S/N 108-4470, built 1947 (OpenAirDocs)
- Reported make and model: STINSON 108-3
- Registry model: [Stinson 108-3](https://openairdocs.org/model/stinson-108-3) (registry code 9230408) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: The Dalles

## 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 19790114000809A](https://openairdocs.org/incident/19790114000809A), Jan 14, 1979: Univar 1083, Dallesport, WA, Substantial damage. Pilot landed on snow covered runway. Wheel hit deep snow. Lost directional control.

## Other investigations on N6470M (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 SEA92LA131](https://openairdocs.org/ntsb/SEA92LA131), Jun 23, 1992: Stinson 108-3 (N6470M), Corbett, OR, substantial damage. Probable cause: THE FAILURE OF THE FLOAT ATTACH FITTING, AND THE SEPARATION OF THE FLOATS FROM THE AIRCRAFT.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.