# NTSB SEA79DYM46: Bell 47G-3B, N73234, Dallesport, WA, June 27, 1979

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 27, 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: 2 uninjured
- Status: Completed, report September 18, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 201206
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA79DYM46
- Page: https://openairdocs.org/ntsb/SEA79DYM46-201206

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1639  79/6/27    DALLESPORT,WA       BELL 47G-3B         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1830                    N73234              PX-  0  0  1  PRACTICE                  AGE 33, 5183 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            186 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - THE DALLES MUNI
        DEPARTURE POINT             INTENDED DESTINATION
          DALLESPORT,WA               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            LANDING: OTHER
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
           MISCELLANEOUS ACTS,CONDITIONS - ENGINE LOADED UP
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        FACTOR(S)
           POWERPLANT - FUEL SYSTEM: CARBURETOR
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
        REMARKS- PWR RECOVERY FROM AUTOROTATION.HIT T/R FIRST.CARB LEAN IN CRUISE & FULL POWER CONDITIONS.
```

## Aircraft

- Registration: N73234 (not matched to a registry record)
- Reported make and model: BELL 47G-3B
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: The Dalles Muni

## 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 19790627020619A](https://openairdocs.org/incident/19790627020619A), Jun 27, 1979: Bell 47G3B, Dallesport, WA, Substantial damage. Pilot practicing autorotation landings. Rotor RPM decayed. Engine loaded up and failed to respond. Hit tail first

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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