NTSB Identification: DEN85FA007.
The docket is stored on NTSB microfiche number 26902.
Accident occurred Tuesday, October 09, 1984 in CHEYENNE, WY
Aircraft: BELL 206B, registration: N3912T
Injuries: 2 Uninjured.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE HELICOPTER'S TAIL ROTOR SECTION CONTACTED A PWR LINE DURING AN ATTEMPTED TAKEOFF. A SECTION OF TAIL ROTOR BLADE TIPWAS FOUND BENEATH THE PWR LINES. THE PILOT REPORTED A VIBRATION IN THE TAIL ROTOR CONTROL PEDALS. HE ATTEMPTED A LANDING INTO AN OPEN FIELD. DURING THE TOUCHDOWN THE HELICOPTER SPUN TO THE RIGHT AND ROLLED COMING TO REST ON ITS LEFT SIDE.

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

JUDGMENT..INACCURATE..PILOT IN COMMAND

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

PROPER DESCENT RATE..NOT ATTAINED..PILOT IN COMMAND



Contributing Factors

ROTOR SYSTEM,TAIL ROTOR BLADE..LOSS,PARTIAL



Contributing Factors

ROTORCRAFT FLIGHT CONTROL,TAIL ROTOR PEDAL..VIBRATION

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