NTSB Identification: SEA74DYA17
14 CFR Part 91 General Aviation
Aircraft: BELL 47G-3B, registration: N8588F

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 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
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3-4035  73/12/17   TWIN FALLS,ID       BELL 47G-3B         CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1055                    N8588F              PX-  0  0  0  DUAL                      AGE 42, 4416 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            1776 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - TWIN FALLS CITY
        DEPARTURE POINT             INTENDED DESTINATION
          TWIN FALLS,ID               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           DUAL STUDENT - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
           DUAL STUDENT - IMPROPER OPERATION OF FLIGHT CONTROLS
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SIMULATED CONDITIONS
        REMARKS- STUD PRCTCNG PWR OFF AUTOROT. INSTR LVL HELO AFTCYCLIC,DID NOT CK RTR RPM. SURF SFT DRT,GRSS.

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