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NTSB Report
April 19, 1985 · Piper PA25-235 · N9636P
Walnut Grove, CA
Overview
Report Status
Preliminary report
Event Type
Accident
Date
April 19, 1985
Injury Outcomes
1 injury (1 fatality)
Location
Walnut Grove, CA
Aircraft
Piper PA25-235
Tail Number
N9636P
Operator
Victor G Spezia
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
LAX85FA216
THE ACFT FLEW INTO THE GROUND ON A PROCEDURE TURNAROUND WHILE SPRAYING WHEAT WITH A TOXIC CHEMICAL. THE ACFT DID NOT STALL AND THE ENGINE SOUND DID NOT CHANGE. A SEPARATED AILERON CROSSOVER CABLE SHOWED NO FATIGUE. THE CHOLINESTERASE LEVEL IN THE PILOT'S BLOOD WAS NORMAL. CHOLINESTERASE IS INHIBITED BY TOXIC PESTICIDES.
Full Narrative
THE ACFT FLEW INTO THE GROUND ON A PROCEDURE TURNAROUND WHILE SPRAYING WHEAT WITH A TOXIC CHEMICAL. THE ACFT DID NOT STALL AND THE ENGINE SOUND DID NOT CHANGE. A SEPARATED AILERON CROSSOVER CABLE SHOWED NO FATIGUE. THE CHOLINESTERASE LEVEL IN THE PILOT'S BLOOD WAS NORMAL. CHOLINESTERASE IS INHIBITED BY TOXIC PESTICIDES.
Flight
Event TypeAccident
Event Time11:40 PST
Nearest AirportSPEZIA (1nm ESE)
Runway0
Flight Plan FiledNone
Aircraft FireGrd
Aircraft ExplosionNo
Aircraft
AircraftPiper PA25-235
Tail NumberN9636P
Aircraft CategoryAir
DamageDestroyed
OperatorVictor G Spezia
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-540-B2C5 · Reciprocating · 235
Seats1
People & Injuries
Injury Summary1 injury (1 fatality)
Fatal1
Serious0
Minor0
Uninjured0
Total1
Crew 1Age 42 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind90° @ 8 kt
Visibility12 sm
CeilingNone
Temperature / Dew Point52 / 0 C
Altimeter0
Weather SourceWIT