NTSB Identification: FTW81FA085
14 CFR Part 135 Nonscheduled operation of BRISTOW OFFSHO
Aircraft: AEROSPATIAL AS350D, registration: N143BH

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 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
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3-1183   81/5/4    GULF OF MEXICO      AEROSPATIAL AS350D  CR-  0  0  1  COMMERCIAL                AIRLINE TRANSPORT, AGE
        TIME - 1315                    N143BH              PX-  0  0  0  AIR TAXI-CARGO            31, 4761 TOTAL HOURS, 516
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          BEAUMONT,TX                 GULF OF MEXICO
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      IN FLIGHT: NORMAL CRUISE
           ROLL OVER                                                LANDING: POWER-ON LANDING
        PROBABLE CAUSE(S)
           ROTORCRAFT - FLIGHT CONTROL SYSTEMS: TAIL ROTOR PITCH CONTROL SYSTEM
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           PERSONNEL - PRODUCTION-DESIGN-PERSONNEL: POOR/INADEQUATE DESIGN
           ROTORCRAFT - MISCELLANEOUS UNITS AND ASSEMBLIES: EMERGENCY FLOTATION GEAR
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING OFF AIRPORT
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
                                  AIRFRAME BUFFET
        REMARKS- TAIL ROTOR PITCH HORN,PN 350A-12-1368,FAILED FM FATIGUE.EMERG FLOAT BRACKETS FAILED DRG WTR LNDG.

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