NTSB Identification: ANC72AA009
14 CFR Part 135 Nonscheduled operation of TRANS ALASKA H
Aircraft: SIKORSKY S-55B, registration: N5096V

----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3388  71/8/12    VALDEZ,ALAS         SIKORSKY S-55B      CR-  1  0  0  COMMERCIAL                COMMERCIAL, AGE 28, 3893
        TIME - 1427                    N5096V              PX-  1  0  0  AIR TAXI-PASSG            TOTAL HOURS, 186 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - VALDEZ
        DEPARTURE POINT             INTENDED DESTINATION
          VALDEZ,ALAS                 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)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: MAIN ROTOR GEAR BOX
           MISCELLANEOUS ACTS,CONDITIONS - BRITTLE
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
         FIRE AFTER IMPACT
        REMARKS- IMPROPERLY HEAT TREATED PART INSTLD IN MAIN TSMN.VENDOR,SOURCE NOT IDENTD.TSMN,ROTOR HEAD SEPN.

Index for Aug1971 | Index of months