# NTSB SEA76DYE41: Bell 47G-3B, N3794G, Forks, WA, May 12, 1976

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: May 12, 1976
- Place: Forks, WA · FORKS, WA
- Location: 47.9528° N, 124.3902° W: Placed by OpenAirDocs: center of Forks, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.9528&lon=-124.3902&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report June 15, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 153815
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA76DYE41
- Page: https://openairdocs.org/ntsb/SEA76DYE41

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1227  76/5/12    FORKS,WA            BELL 47G-3B         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 33, 2400
        TIME - 1930                    N3794G              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, ALL IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          FORKS,WA                    LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      IN FLIGHT: SWATH RUN
           COLLISION WITH GROUND/WATER: CONTROLLED                  LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: TAIL ROTOR GEAR BOX
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - SPRAYING FORESTS
          KIND OF CROP - OTHER                                     TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - SIDES                             TERRAIN-TYPE -HILLY
          ELEVATION-AREA BEING TREATED-FEET -  1000                SWATH RUN-HOW FLOWN - CROSSWIND
        REMARKS- T/R GR BOX PINION SHAFT FAILED. CRASHED INTO HILLSIDE. SPRAYING BRUSH.
```

## Aircraft

- Registration: [N3794G](https://openairdocs.org/deregistered/N3794G-2013-08-13), registration cancelled 2013-08-13, S/N 2184, built 1958 (OpenAirDocs)
- Reported make and model: BELL 47G-3B
- Registry model: [Bell 47G-3B](https://openairdocs.org/model/bell-47g-3b) (registry code 1181026) (OpenAirDocs)
- Registry engine: [Lycoming TVO-435-GIA](https://openairdocs.org/engine/lycoming-tvo-435-gia) (registry code 41526, turbo-prop) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

## 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 19760512010839A](https://openairdocs.org/incident/19760512010839A), May 12, 1976: Bell 47G3B, Forks, WA, Substantial damage. T/r gr box pinion shaft failed. Crashed into hillside. Spraying brush.

## Other investigations on N3794G (3)

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 SEA75DYG12](https://openairdocs.org/ntsb/SEA75DYG12), Sep 11, 1974: Bell 47G-2 (N3794G), Ruff, WA, substantial damage
- [NTSB SEA68A0007](https://openairdocs.org/ntsb/SEA68A0007), Jul 17, 1967: Bell 47G-2 (N3794G), Palisades, WA, substantial damage
- [NTSB UNK64X3780](https://openairdocs.org/ntsb/UNK64X3780), Sep 4, 1964: Bell 47G2 (N3794G), Manson, 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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