NTSB Identification: MKC87LA164.
The docket is stored on NTSB microfiche number 36217.
Accident occurred Saturday, August 15, 1987 in MEDIAPOLIS, IA
Probable Cause Approval Date: 06/16/1989
Aircraft: ROCKWELL S-2R, registration: N4949X
Injuries: 1 Uninjured.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
THE PILOT STATED THAT THE FIELD TO BE SPRAYED APPEARED SAFE ENOUGH WHEN HE FLEW A RECON FLIGHT OVER THE AREA THE DAY PRIOR TO THE ACCIDENT. HE STATED THAT HE DIDN'T EXPECT THE POWER TRANSMISSION LINES TO BE SO LOW, AND THAT HE DID NOT SEE A RISE IN THE CULTIVATED TERRAIN JUST UNDER THE POWERLINES. THE DAY OF THE ACCIDENT, AS THE PILOT FLEW UNDER THE LINES AND OVER THE HUMP IN THE CORNFIELD, THE RIGHT SPRAY BOOM SNAGGED THE CORN, PULLING THE RIGHT WING DOWN. THE AIRCRAFT THEN SWERVED 180 DEGREES AND IMPACTED THE TERRAIN BEFORE COMING TO REST.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:PREFLIGHT PLANNING/PREPARATION..INADEQUATE..PILOT IN COMMAND
The National Transportation Safety Board determines the probable cause(s) of this accident to be:CLEARANCE..MISJUDGED..PILOT IN COMMAND
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