NTSB Identification: SEA86LA178.
The docket is stored on NTSB microfiche number 31109.
Accident occurred Wednesday, July 23, 1986 in KUNA, ID
Aircraft: AYRES S-2R, registration: N5017X
Injuries: 1 Fatal.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

ACFT WAS OBSERVED IN ORBIT PATTERN NEAR OBJECT FIELD FOR NIGHT AERIAL APPLICATION. PLT OVERFLEW OBJECT FIELD SECURED ACFT LIGHTS AND SHORTLY THEREAFTER COLLIDED WITH POWERLINE TOWER. PLT HAD MADE APPLICATION AT THIS FIELD FOUR PREVIOUS TIMES THIS YEAR. GROUND OBSERVERS SPECULATE UNUSUAL PATTERN AND PLT ACTIONS INDICATIVE OF PLT UNSURE OF GROUND REFERENCES. A FIELD WORKER TRIED TO HELP RESCUE THE PLT AND WAS BURNED SERIOUSLY.

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

CLEARANCE..MISJUDGED..PILOT IN COMMAND


Contributing Factors

BECAME LOST/DISORIENTED..INADVERTENT..PILOT IN COMMAND


Contributing Factors

OBJECT..WIRE,TRANSMISSION


Contributing Factors

LIGHT CONDITION..DARK NIGHT

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