NTSB Identification: OAK73FVG04
14 CFR Part 135 Nonscheduled operation of 4C'S HELOCOPTE
Aircraft: SIKORSKY S-55B, registration: N1062
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 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
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3-2519  72/7/18    BENICIA,CALIF       SIKORSKY S-55B      CR-  0  0  1  COMMERCIAL                AIRLINE TRANSPORT, AGE
        TIME - 0908                    N1062               PX-  0  0  0  AIR TAXI-CARGO            32, 8868 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            1646 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          PACK AREA SUISUN BAY        LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: NORMAL CRUISE
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - PREVIOUS DAMAGE
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
           MISCELLANEOUS ACTS,CONDITIONS - JETTISONED LOAD
        REMARKS- FRONT TRANSMISSION SUPPORT BRACKET FAILED UNDER LOAD. OVER SIZE ENG INSTALLED.
Full narrative is not available


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