NTSB Identification: LAX77DUM21
14 CFR Part 91 General Aviation
Aircraft: SCHWEIZER SGS233, registration: N5797S
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 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
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3-0442  77/3/12    SAN DIEGO,CA        SCHWEIZER SGS233    CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1300                    N5797S              PX-  0  0  0  DUAL                      AGE 25, 258 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            46 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - TORREY PINES
        DEPARTURE POINT             INTENDED DESTINATION
          SAN DIEGO,CA                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: OBJECT                                    LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           DUAL STUDENT - MISJUDGED CLEARANCE
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
           MISCELLANEOUS ACTS,CONDITIONS - SIMULATED CONDITIONS
        REMARKS- PREMATURE RELEASE DRG TKOF TO SIMULATE WINCH CABLE BREAK.HIT SIGN.
Full narrative is not available


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