# NTSB LAX80FA063: Bell 47G2, N6701D, Brentwood, CA, March 8, 1980

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: March 8, 1980
- Place: Brentwood, CA · BRENTWOOD, CA
- Location: 37.9356° N, 121.7190° W: Placed by OpenAirDocs: center of Brentwood, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.9356&lon=-121.7190&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report January 12, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 134931
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX80FA063
- Page: https://openairdocs.org/ntsb/LAX80FA063

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3256   80/3/8  NR.BRENTWOOD,CA       BELL 47G2           CR-  0  1  0  COMMERCIAL                COMMERCIAL, AGE 56, 18100
        TIME - 1110                    N6701D              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 15050 IN
                                       DAMAGE-DESTROYED    OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         BRENTWOOD,CA                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      IN FLIGHT: SWATH RUN
        PROBABLE CAUSE(S)
           ROTORCRAFT - ROTOR ASSEMBLIES: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 9999                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - USED
          GOGGLES - USED                                           CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - BELLY                             TERRAIN-TYPE -ROLLING
          ELEVATION-AREA BEING TREATED-FEET -  100                 SWATH RUN-HOW FLOWN - UPWIND
        REMARKS- TAIL ROTOR BLADE YOKE,PN.47-641-057-9,SN 29-10598,FAILED.
```

## Aircraft

- Registration: [N6701D](https://openairdocs.org/deregistered/N6701D-2013-09-13), registration cancelled 2013-09-13, S/N 2188, built 1958 (OpenAirDocs)
- Reported make and model: BELL 47G2
- Registry model: [Bell 47G-2](https://openairdocs.org/model/bell-47g-2) (registry code 1181008) (OpenAirDocs)
- Registry engine: [Lycoming VO-435 series](https://openairdocs.org/engine/lycoming-vo-435-series) (registry code 41525, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed

## 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 19800308005439A](https://openairdocs.org/incident/19800308005439A), Mar 8, 1980: Bell 47G2, Brentwood, CA, Destroyed. Tail rotor yoke failed during spray run. Crashed in uncontroable right turn.

## Other investigations on N6701D (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 OAK75DVD03](https://openairdocs.org/ntsb/OAK75DVD03), Jul 6, 1974: Bell 47G-2 (N6701D), Linden, CA, substantial damage
- [NTSB ANC69A0053](https://openairdocs.org/ntsb/ANC69A0053), May 6, 1969: Bell 47G-2 (N6701D), Oliktok, AK, 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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