NTSB Identification: MKC88LA092.
The docket is stored on NTSB microfiche number 38237.
Accident occurred Thursday, May 19, 1988 in MC DOUGAL, AR
Probable Cause Approval Date: 11/24/1989
Aircraft: BELL 47G-2, registration: N4690
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 HE HAD JUST BEGUN THE SPRAYING OF A RICE FIELD WHEN ONE OF THE SPRAY NOZZLES MALFUNCTIONED. AS HE WAS ATTEMPTING TO SET THE HELICOPTER DOWN ON THE GROUND, TO WORK ON THE NOZZLE, THE MAIN ROTOR BLADES STRUCK A TREE. THE MAIN ROTOR BLADES THEN CHOPPED OFF THE TAIL BOOM, AND THE HELICOPTER WENT OUT OF CONTROL BEFORE IMPACTING THE TERRAIN. NO MECHANICAL MALFUNCTION WAS DISCOVERED DURING THE POST-CRASH INSPECTION.

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

CLEARANCE..NOT MAINTAINED..PILOT IN COMMAND

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

DIVERTED ATTENTION..PILOT IN COMMAND




Contributing Factors

SPRAY/DUSTING EQUIPMENT..BLOCKED(PARTIAL)


Contributing Factors

OBJECT..TREE(S)

Index for May1988 | Index of months