# NTSB LAX71FUG26: Bensen KEB, N9672Z, Adelanto, CA, November 22, 1970

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: November 22, 1970
- Place: Adelanto, CA · ADELANTO, CA
- Location: 34.5828° N, 117.4092° W: Placed by OpenAirDocs: center of Adelanto, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.5828&lon=-117.4092&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report August 27, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 159196
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX71FUG26
- Page: https://openairdocs.org/ntsb/LAX71FUG26

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4230  70/11/22   ADELANTO,CALIF      BENSEN KEB          CR-  1  0  0  NONCOMMERCIAL             COMMERCIAL, AGE 34, 746
        TIME - 0955                    N9672Z              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 44 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - EL MIRAGE
        DEPARTURE POINT             INTENDED DESTINATION
          EL MIRAGE DRY LAKE          LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: MAIN ROTOR                      IN FLIGHT: NORMAL CRUISE
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           ROTORCRAFT - ROTOR ASSEMBLIES: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY SECURED
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY INSTALLED
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        REMARKS- ROTOR INSTALLED BY PLT.ROTOR SPINDLE RETAINING NUT NOT SAFETIED.ROTOR ASSY SEPARATED FROM MAST.
```

## Aircraft

- Registration: N9672Z (not matched to a registry record)
- Reported make and model: BENSEN KEB
- Category: Gyroplane, amateur-built
- Engines: reciprocating
- Damage: Destroyed
- Airport: El Mirage

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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