NTSB Identification: DEN73FTC05
14 CFR Part 91 General Aviation
Aircraft: ALOUETTE III, registration: N6874

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 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
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3-1246   72/8/8    GREYBULL,WYO        ALOUETTE III        CR-  0  1  0  MISCELLANEOUS             COMMERCIAL, FL.INSTR.,
        TIME - 1130                    N6874               PX-  0  0  0  FERRY                     AGE 45, 9932 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            65 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          CODY,WYO                    GREYBULL,WYO
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           MISCELLANEOUS                                            IN FLIGHT: NORMAL CRUISE
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: ENGINE DRIVE SHAFT
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           PERSONNEL - PRODUCTION-DESIGN-PERSONNEL: SUBSTANDARD QUALITY CONTROL
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  SUSPECTED MECHANICAL DISCREPANCY
                                  PITCH CONTROL PROBLEM
        REMARKS- MAIN DRIVE SHAFT FAILED DUE TO FAULTY MACHINING.SHAFT SEPARATED,WENT THRU ROTOR HEAD ASSY.

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