NTSB Identification: FTW70F0132
14 CFR Part 135 Nonscheduled operation of PETROLEUM HELI
Aircraft: BELL 206A, registration: N4059G
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 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
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3-2315  69/7/27    VENICE,LA           BELL 206A           CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 27, 3091
        TIME - 1519                    N4059G              PX-  0  0  0  AIR TAXI-PASSG            TOTAL HOURS, 53 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLISION WITH GROUND/WATER: UNCONTROLLED                LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
           MISCELLANEOUS ACTS,CONDITIONS - MISSING
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY INSTALLED
           POWERPLANT - TURBINE ASSEMBLY: WHEEL TURBINE
           MISCELLANEOUS ACTS,CONDITIONS - DISCONNECTED
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: TAIL ROTOR DRIVE SHAFT ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - SHEARED
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  DIRECTIONAL CONTROL PROBLEM
         FIRE AFTER IMPACT
        REMARKS- TURBINE TIE BOLT NUT CAME OFF,ALLOWED TURBINE WHEEL TO BREAK OUT OF ENG.SEVERED T/R DRIVE SHAFT.
Full narrative is not available


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