# NTSB LAX79FUJ51: Bell 47G-3B, N33613, Williams, AZ, March 5, 1979

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: March 5, 1979
- Place: Williams, AZ · WILLIAMS, AZ
- Location: 35.2495° N, 112.1910° W: Placed by OpenAirDocs: center of Williams, AZ, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=35.2495&lon=-112.1910&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report June 9, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 137063
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX79FUJ51
- Page: https://openairdocs.org/ntsb/LAX79FUJ51

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1004   79/3/5    WILLIAMS,AZ         BELL 47G-3B         CR-  0  1  0  NONCOMMERCIAL             COMMERCIAL, AGE 54, 1824
        TIME - 1630                    N33613              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 143 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          WILLIAMS,AZ                 PRESCOTT,AZ
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  TAKEOFF: VERTICAL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
        FACTOR(S)
           WEATHER - HIGH DENSITY ALTITUDE
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          BROKEN                                                    25000
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      45
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      VFR
        REMARKS- D/A APPROX 10600FT.
```

## Aircraft

- Registration: [N33613](https://openairdocs.org/deregistered/N33613-2012-06-11), registration cancelled 2012-06-11, S/N 2919, built 1964 (OpenAirDocs)
- Reported make and model: BELL 47G-3B
- Registry model: [Bell 47G-3B-1](https://openairdocs.org/model/bell-47g-3b-1) (registry code 1181028) (OpenAirDocs)
- Registry engine: [Lycoming 0-435](https://openairdocs.org/engine/lycoming-0-435) (registry code 41516, reciprocating) (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 19790305008409A](https://openairdocs.org/incident/19790305008409A), Mar 5, 1979: Bell 47G3B1, Williams, AZ, Substantial damage. Pilot attempted high altitude,confined area operation. Hit tail rotor on something. Tail rotor failed.

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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