# NTSB LAX71DUG38: Bell 47G3B1, N73957, Runing Spgs, CA, January 9, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: January 9, 1971
- Place: Runing Spgs, CA · RUNING SPGS, CA
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 24, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 159984
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX71DUG38
- Page: https://openairdocs.org/ntsb/LAX71DUG38

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0471   71/1/9    RUNING SPGS,CALIF   BELL 47G3B1         CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 0728                    N73957              PX-  0  0  0  AERIAL APPLICATION        AGE 52, 11200 TOTAL
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            HOURS, 2319 IN TYPE,
                                                                                                   INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          KELLER PEAK,HELIPORT        LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: UNCONTROLLED                TAKEOFF: RUNNING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
        REMARKS- PLT FAILED TO MAINTAIN ROTOR RPM.SETTLED,CAME TO REST INVERTED.
```

## Aircraft

- Registration: N73957 (not matched to a registry record)
- Reported make and model: BELL 47G3B1
- Category: Helicopter
- Engines: reciprocating
- Damage: 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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.