# NTSB LAX70A0008: Bell 47G3B1, N73909, Grnd Canyon, AZ, July 30, 1969

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: July 30, 1969
- Place: Grnd Canyon, AZ · GRND CANYON, AZ
- Location: 36.0544° N, 112.1393° W: Placed by OpenAirDocs: center of Grand Canyon, AZ, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.0544&lon=-112.1393&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 3 fatal
- Status: Completed, report February 6, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 165477
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX70A0008
- Page: https://openairdocs.org/ntsb/LAX70A0008

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2925  69/7/30    GRND CANYON,ARIZ    BELL 47G3B1         CR-  1  0  0  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1526                    N73909              PX-  2  0  0  AIR TAXI-PASSG            AGE 27, 1641 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            197 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          GRND CANYON,ARIZ            GRND CANYON,ARIZ
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: TREES                                     LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
           PILOT IN COMMAND - MISJUDGED DISTANCE AND SPEED
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         FIRE AFTER IMPACT
        REMARKS- PLT OVERSHOT TWO SUITABLE LANDING AREAS.
```

## Aircraft

- Registration: [N73909](https://openairdocs.org/aircraft/N73909), registered now, S/N 2797, built 1962 (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)
- 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: Destroyed

## Other investigations on N73909 (6)

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 SEA04LA114](https://openairdocs.org/ntsb/SEA04LA114), Jun 23, 2004: Bell 47G-3B-1 (N73909), Medford, OR, substantial damage. Probable cause: The pilot's failure to maintain clearance from a tree while maneuvering. Trees were a factor.
- [NTSB SEA94LA065](https://openairdocs.org/ntsb/SEA94LA065), Feb 24, 1994: Bell 47G-3B-1 (N73909), Gold Hill, OR, destroyed. Probable cause: SEPARATION OF THE CROSSOVER FUEL LINE, AND THE INABILITY OF THE PILOT IN COMMAND TO MAINTAIN A PROPER RATE OF DESCENT DURING THE AUTOROTATION.
- [NTSB SEA74DYA12](https://openairdocs.org/ntsb/SEA74DYA12), Oct 2, 1973: Bell 47G-3B (N73909), New Meadows, ID, destroyed
- [NTSB LAX69D0357](https://openairdocs.org/ntsb/LAX69D0357), May 21, 1969: Bell 47G3B1 (N73909), Grnd Canyon, AZ, substantial damage
- [NTSB DEN66A0074](https://openairdocs.org/ntsb/DEN66A0074), Apr 12, 1966: Bell 47G-3B (N73909), Grand Canyon, AZ, destroyed, 1 fatal
- [NTSB UNK64X0473](https://openairdocs.org/ntsb/UNK64X0473), Feb 5, 1964: Bell 47G3B1 (N73909), Little Nway, CA, destroyed, 1 fatal

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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