# NTSB OAK67A0034: Bell 47G-3B, N8468E, San Rafael, CA, September 13, 1966

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 13, 1966
- Place: San Rafael, CA · SAN RAFAEL, CA
- Location: 37.9810° N, 122.5069° W: Placed by OpenAirDocs: center of San Rafael, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.9810&lon=-122.5069&mi=10
- Phase of flight: [Standing](https://openairdocs.org/ntsb-phases/150) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report May 16, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 121580
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK67A0034
- Page: https://openairdocs.org/ntsb/OAK67A0034

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0951  66/9/13    SAN RAFAEL CALIF    BELL 47G-3B         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 45, 10433
        TIME - 1340                    N8468E              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 10133 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           MISCELLANEOUS                                            STATIC: IDLING ROTORS
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - EXERCISED POOR JUDGMENT
           PILOT IN COMMAND - LEFT AIRCRAFT UNATTENDED, ENGINE RUNNING
        FACTOR(S)
           PILOT IN COMMAND - FAILED TO USE OR INCORRECTLY USED MISC.EQUIPMENT
           ROTORCRAFT - FLIGHT CONTROL SYSTEMS: CYCLIC PITCH CONTROL SYSTEM
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY SECURED
        REMARKS- M/R TILTED,BLADES STRUCK LOADING CART.ACFT BECAME AIRBORNE,CRASHED ABOUT 50 FT FROM LOADING SPOT.
```

## Aircraft

- Registration: [N8468E](https://openairdocs.org/aircraft/N8468E), registered now, S/N 2647 (OpenAirDocs)
- Reported make and model: BELL 47G-3B
- Registry model: [Bell 47G-3B](https://openairdocs.org/model/bell-47g-3b) (registry code 1181026) (OpenAirDocs)
- Registry engine: [Lycoming TVO-435-A1A](https://openairdocs.org/engine/lycoming-tvo-435-a1a) (registry code 41937, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N8468E (3)

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 DFW08CA188](https://openairdocs.org/ntsb/DFW08CA188), Jul 1, 2008: Bell 47G-3B (N8468E), Mullen, NE, substantial damage. Probable cause: The plot's distraction with the chemical load resulting the failure to maintain control of the helicopter. A factor was no suitable terrain for landing.
- [NTSB OAK72FVD11](https://openairdocs.org/ntsb/OAK72FVD11), Sep 8, 1971: Bell 47G3B (N8468E), Brentwood, CA, substantial damage
- [NTSB OAK66A0033](https://openairdocs.org/ntsb/OAK66A0033), Feb 12, 1966: Bell 47G-3B (N8468E), Antioch, CA, 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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