OAK75DVA38

NTSB accident investigation · Hiller Acft UH-12C · Kettlmn Cty, CA · December 31, 1974

Accident · No injuriesClosed
Date
December 31, 1974
Place
Kettlmn Cty, CA · KETTLMN CTY, CA
Injuries
1 uninjured
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N4785CHiller Acft UH-12C
Status
Completed · report February 4, 1975
Report
Brief approved by the director
FAA report
19741231042329A
Case key
132407

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
----------------------------------------------------------------------------------------------------------------------------
3-4135  74/12/31 NR.KETTLMN CTY,CALIF  HILLER ACFT UH-12C  CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 20, 540
        TIME - 1630                    N4785C              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 251 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         KETTLMN CTY,CALIF            LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: PROCEDURE TURNAROUND
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  475                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - OTHER                                     TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - NOT USED
          GOGGLES - USED                                           CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - BELLY                             TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  245                 SWATH RUN-HOW FLOWN - UPWIND
          PROCEDURE TURNAROUND - THIRD 1/3 TURN
         FIRE AFTER IMPACT

Aircraft

Registration
N4785C
Reported as
Hiller Acft UH-12C
Category
Helicopter
Engine
reciprocating
Damage
Destroyed

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.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N4785C · 1

Matched to the same aircraft by N-number and date.