NTSB Identification: ATL81DKJ22
14 CFR Part 91 General Aviation
Aircraft: HILLER ACFT UH-12E, registration: N702WA
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 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
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3-2039  81/7/10    CENTREVILLE,AL      HILLER ACFT UH-12E  CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 0800                    N702WA              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   AGE 26, 2600 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            120 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          CENTREVILLE,AL              LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      TAKEOFF: VERTICAL
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: TAIL ROTOR GEAR BOX
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  DIRECTIONAL CONTROL PROBLEM
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - UNKNOWN/NOT REPORTED                      TYPE OF CHEMICAL USED - UNKNOWN/NOT REPORTED
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 TANK/HOPPER-LOCATION - UNKNOWN/NOT REPORTED
          SWATH RUN-HOW FLOWN - UNKNOWN/NOT REPORTED
        REMARKS- HELICOPTER BGN UNCTLD SPIN APRX 105FT AGL.FND TEETH OF 2 GEARS CHIPPED IN T/R GEAR BOX.
Full narrative is not available


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