# NTSB SEA71DWD19: Beech 35, N3940N, Auburn, WA, October 25, 1970

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: October 25, 1970
- Place: Auburn, WA · AUBURN, WA
- Location: 47.3046° N, 122.2105° W: Placed by OpenAirDocs: center of Auburn, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.3046&lon=-122.2105&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report July 23, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 159029
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA71DWD19
- Page: https://openairdocs.org/ntsb/SEA71DWD19

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4083  70/10/25   AUBURN,WASH         BEECH 35            CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 48, 242
        TIME - 1030                    N3940N              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 64 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - AUBURN ACADEMY
        DEPARTURE POINT             INTENDED DESTINATION
          RENTON,WASH                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           WHEELS-UP                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
           MISCELLANEOUS ACTS,CONDITIONS - ANTI-ICING/DEICING EQUIPMENT-IMPROPER OPERATION OF/OR FAILED TO USE
           MISCELLANEOUS ACTS,CONDITIONS - ICE-CARBURETOR
           WEATHER - CONDITIONS CONDUCIVE TO CARB./INDUCTION SYSTEM ICING
           MISCELLANEOUS ACTS,CONDITIONS - INTENTIONAL WHEELS-UP
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          UNKNOWN/NOT REPORTED                                      2000
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     RAIN
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      50
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          150                                                       4
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- FLEW INTO RAIN JUST PRIOR TO ENG FAILURE.
```

## Aircraft

- Registration: [N3940N](https://openairdocs.org/deregistered/N3940N-1974-04-23), registration cancelled 1974-04-23, S/N D-1198 (OpenAirDocs)
- Reported make and model: BEECH 35
- Registry model: [Beech 35](https://openairdocs.org/model/beech-35) (registry code 1151502) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Auburn Academy

## Other investigations on N3940N (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 SEA69D0090](https://openairdocs.org/ntsb/SEA69D0090), Jun 17, 1968: Beech 35 (N3940N), Neah Bay, WA, substantial damage

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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