NTSB Identification: LAX85FA216.
The docket is stored on NTSB microfiche number 29773.
Accident occurred Friday, April 19, 1985 in WALNUT GROVE, CA
Aircraft: PIPER PA25-235, registration: N9636P
Injuries: 1 Fatal.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

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.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

CLEARANCE..MISJUDGED..PILOT IN COMMAND


Contributing Factors

MANEUVER..PERFORMED..PILOT IN COMMAND

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