NTSB Identification: LAX71FUG26
14 CFR Part 91 General Aviation
Aircraft: BENSEN KEB, registration: N9672Z
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 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
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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.
Full narrative is not available


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