WALNUT GROVE, CA, USA
N9636P
PIPER PA25-235
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.
Source: NTSB Aviation Accident Database
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