NTSB Identification: FTW86LA044.
The docket is stored on NTSB microfiche number 30635.
Accident occurred Saturday, February 08, 1986 in MCALESTER, OK
Aircraft: ROBINSON R-22, registration: N8557K
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 PLT WAS HEARDING CATTLE WITH THE HELICOPTER WHEN THE ACCIDENT OCCURRED. HE WAS TRAVELING SLOW AND PARALLEL WITH A BARBED WIRE FENCE. HE HAD TO TURN TO THE RIGHT TO AVOID A TREE WHICH WAS DIRECTLY AHEAD OF THE ACFT. UPON MAKING THE TURN HE CAUGHT THE TAIL ROTOR IN THE FENCE AND TORE THE TAIL ROTOR ASSEMBLY OFF THE TAIL BOOM. THE HELICOPTER THEN WENT INTO A SPIN. THE PLT CLOSED THE THROTTLE AND LANDED THE HELICOPTER. THE TOUCHDOWN WAS HARD ENOUGH THAT THE FUSELAGE WAS SLIGHTLY WARPED DURING THE IMPACT.

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

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

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

DIRECTIONAL CONTROL..NOT POSSIBLE..PILOT IN COMMAND


Contributing Factors

VISUAL LOOKOUT..INADEQUATE..PILOT IN COMMAND


Contributing Factors

OBJECT..FENCE

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