# NTSB SEA70DWA14: Bell 47G3B1, N73940, Cove, OR, May 3, 1970

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 3, 1970
- Place: Cove, OR · COVE, OR
- Location: 45.2964° N, 117.8102° W: Placed by OpenAirDocs: center of Cove, OR, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=45.2964&lon=-117.8102&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report February 3, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 127823
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA70DWA14
- Page: https://openairdocs.org/ntsb/SEA70DWA14

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1710   70/5/3    COVE,OREG           BELL 47G3B1         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 35, 3840
        TIME - 0800                    N73940              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 2000 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          COVE,OREG                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: PROCEDURE TURNAROUND
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: BLOWER,IMPELLER ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - LOOSE,PART/FITTING
           MISCELLANEOUS ACTS,CONDITIONS - BINDING
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - JETTISONED LOAD
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 3000                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - SIDES                             TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  3000                SWATH RUN-HOW FLOWN - WIND CALM
          PROCEDURE TURNAROUND - SECOND 1/3 TURN
        REMARKS- LOCKPLATE P/N402932-6 FOUND UNSCREWED.ASSY APPEARED TO HAVE BEEN PROPERLY INSTALLED DURG OVERHAUL.
```

## Aircraft

- Registration: [N73940](https://openairdocs.org/deregistered/N73940-1983-09-23), registration cancelled 1983-09-23, S/N 2818 (OpenAirDocs)
- Reported make and model: BELL 47G3B1
- Registry model: [Bell 47G-3B-1](https://openairdocs.org/model/bell-47g-3b-1) (registry code 1181028) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N73940 (2)

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 SEA74DYC54](https://openairdocs.org/ntsb/SEA74DYC54), May 24, 1974: Bell 47G-3B (N73940), North Powder, OR, substantial damage
- [NTSB SEA71FYC38](https://openairdocs.org/ntsb/SEA71FYC38), Apr 30, 1971: Bell 47G-3B (N73940), Elgin, OR, 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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