NTSB Identification: OAK65A0069
14 CFR Part 91 General Aviation
Aircraft: HILLER UH12, registration: N9791C----------------------------------------------------------------------------------------------------------------------------
FILE DATE LOCATION AIRCRAFT DATA INJURIES FLIGHT PILOT DATA
F S M/N PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0238 65/5/28 NR.WILLOWS CALIF HILLER UH12 CR- 0 0 1 COMMERCIAL COMMERCIAL, FL.INSTR.,
TIME - 0515 N9791C PX- 0 0 0 ASSOC CROP CTL ACTIVITY AGE 46, 10150 TOTAL
DAMAGE-SUBSTANTIAL OT- 0 0 0 HOURS, 115 IN TYPE, NOT
INSTRUMENT RATED.
TYPE OF ACCIDENT PHASE OF OPERATION
MISCELLANEOUS IN FLIGHT: EN ROUTE TO RELOADING AREA
COLLISION WITH GROUND/WATER: UNCONTROLLED LANDING: POWER-OFF AUTOROTATIVE LANDING
PROBABLE CAUSE(S)
PERSONNEL-USED IMPROPER SIZE SPRAY BRACE-TOO WEAK
INSTRUMENTS/EQUIPMENT AND ACCESSORIES - MISCELLANEOUS EQUIPMENT: SPRAY,DUSTING EQUIPMENT
MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
FACTOR(S)
MISCELLANEOUS ACTS,CONDITIONS - WRONG PART
EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
SPECIAL DATA
TOTAL HOURS IN CROP CONTROL - 8000 KIND OF OPERATION - SPRAYING FORESTS
KIND OF CROP - FOREST-TREES TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
PILOT' S SEAT BELT -FASTENED-PROPERLY GLOVES - USED
GOGGLES - NOT USED CRASH HELMET - AVAILABLE USED
COCKPIT CRASHPAD - NOT INSTALLED CRASH BAR - NOT INSTALLED
TANK/HOPPER-LOCATION - BELLY TERRAIN-TYPE -MOUNTAINOUS
ELEVATION-AREA BEING TREATED-FEET - 2150 SWATH RUN-HOW FLOWN - WIND CALM
REMARKS- PLT INSTLD SPRAY RIG FAILD IN FLITE-HIT ROTOR.
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