# NTSB SEA80FYP26: Bell 47G-4, N6786D, Mattawa, WA, July 5, 1980

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: July 5, 1980
- Place: Mattawa, WA · MATTAWA, WA
- Location: 46.7377° N, 119.9064° W: Placed by OpenAirDocs: center of Mattawa, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=46.7377&lon=-119.9064&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report September 9, 1980
- Report: Brief approved by the director
- NTSB case key (mKey): 129960
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA80FYP26
- Page: https://openairdocs.org/ntsb/SEA80FYP26

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1666   80/7/5  NR.MATTAWA,WA         BELL 47G-4          CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 35, 4409
        TIME - 1300                    N6786D              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, UNK/NR IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         MATTAWA,WA                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: MAIN ROTOR                      IN FLIGHT: SWATH RUN
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           ROTORCRAFT - FLIGHT CONTROL SYSTEMS: CYCLIC PITCH CONTROL SYSTEM
           MISCELLANEOUS ACTS,CONDITIONS - DISCONNECTED
           MISCELLANEOUS ACTS,CONDITIONS - MISSING
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - OTHER                                     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 -  900                 SWATH RUN-HOW FLOWN - CROSSWIND
        REMARKS- BOLT,P/N MAS1304-27DW,ATTACHING CYCLIC CTL ROD TO GIMBLE RING MISSING.INSTALLED 198HRS PRIOR.
```

## Aircraft

- Registration: N6786D (not matched to a registry record)
- Reported make and model: BELL 47G-4
- 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 19800705023159A](https://openairdocs.org/incident/19800705023159A), Jul 5, 1980: Bell 47G4, Mattawa, WA, Substantial damage. Pilot lost cyclic control and crashed during spray run.

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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