NTSB Identification: SEA87LA005.
The docket is stored on NTSB microfiche number 32715.
Accident occurred Tuesday, October 07, 1986 in FOREST GROVE, OR
Probable Cause Approval Date: 03/10/1988
Aircraft: Hughes 269A, registration: N986GC
Injuries: 2 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.

PLT WAS OVERFLYING FILBERT ORCHARD TO SHAKE NUTS OFF TREES WITH ROTOWASH. PLT ALLOWED ROTOR RPM TO DECAY IN A DOWN WIND TURN 10 FEET AGL. ACFT COLLIDED WITH TREES, THEN GROUND, AND ROLLED OVER.

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

ROTOR RPM..NOT MAINTAINED..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..TAILWIND

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