LAX68A0067

NTSB accident investigation · Hiller UH12L4 · Cucamonga, CA · January 15, 1968

Accident · Serious injuriesClosed
Date
January 15, 1968
Place
Cucamonga, CA · CUCAMONGA, CA
Injuries
2 serious, 2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N90483Hiller UH12L4
Status
Completed · report April 25, 1968
Report
Brief approved by the director
Case key
112023

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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NTSB brief

NTSB’s brief of the accident, as it was printed: the coded facts, with the probable cause and factors.

----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0539  68/1/15    CUCAMONGA,CALIF     HILLER UH12L4       CR-  0  1  0  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1535                    N90483              PX-  0  1  2  AIR TAXI-PASSG            AGE 37, 2364 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            338 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - ONTARIO INTL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: MAIN ROTOR                      TAKEOFF: INITIAL CLIMB
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: CLUTCH ASSEMBLY
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- CLUTCH SLIPPAGE DUE TO WORN AND GLAZED FRICTION SHOES.

Aircraft

Registration
N90483
Reported as
Hiller UH12L4
Category
Helicopter
Engine
reciprocating
Damage
Substantial damage
Airport
Ontario Intl

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.