NTSB Identification: ATL87LA229.
The docket is stored on NTSB microfiche number 34411.
Accident occurred Monday, August 10, 1987 in DOTHAN, AL
Probable Cause Approval Date: 10/25/1988
Aircraft: BELL 47G (TOM CAT), registration: N10175
Injuries: 1 Minor.

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 PLT RPRTD THAT WHILE HE WAS MAKING A TURN-AROUND OVER TREES AFTER THE 1ST SWATH RUN, THE HELICOPTER ENCTRD A SUDDEN WIND CHANGE. HE STATED THAT THE WIND COND WAS FROM A CUMULUS BUILDUP WHICH PUT HIM IN A TAILWIND SITUATION. AS HE COMPLETED HIS TURN WITH NEAR ZERO AIRSPEED, THE HELICOPTER BGN TO SETTLE WITH POWER. THE PLT TRIED TO FLY OUT OF THE SITUATION, BUT THE TAIL ROTOR STRUCK A TREE LIMB & SEPARATED, CAUSING THE HELICOPTER TO SPIN. THE PLT ROLLED OFF THE THROTTLE IN AN ATMT TO MAKE AN AUTOROTATION & THE HELICOPTER TOUCHED DOWN HARD.

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

IN-FLIGHT PLANNING/DECISION..IMPROPER..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..UNFAVORABLE WIND



Contributing Factors

OBJECT..TREE(S)


Contributing Factors

WEATHER CONDITION..TAILWIND

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