NTSB Identification: NYC85FA001.
The docket is stored on NTSB microfiche number 26969.
Accident occurred Wednesday, October 03, 1984 in REINHOLDS, PA
Aircraft: BELL 206L-1, registration: N77AR
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.

PLT FELT VIBRATION IN ANTI-TORQUE PEDALS FOLLOWED BY A SERIES OF LOUD BANGS COMING FROM THE TAIL SECTION. PLT INITIATED PRECAUTIONARY LANDING DURING WHICH TAIL ROTOR EFFECTIVENESS. DURING THE 'POWER OFF' RUN ON LANDING MAIN ROTOR BLADES CONTACTED THE TAIL BOOM. POST ACCIDENT EXAMINATION OF THE TAIL ROTOR DRIVESHAFT ASSEMBLY DISCLOSED THE SECOND TAIL ROTOR DRIVE SHAFT SEGMENT FAILED AFTER ONE BOLT FROM THE REAR THOMAS COUPLER DISCONNECTED. EXAMINATION OF THE BOLT HOLES REVEALED THREAD IMPRINTS. THE BOLT AND NUT WERE NOT FOUND

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

FLARE..NOT PERFORMED..PILOT IN COMMAND

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

MAINTENANCE,INSTALLATION..IMPROPER..OTHER MAINTENANCE PERSONNEL





Contributing Factors

DIRECTIONAL CONTROL..NOT POSSIBLE..PILOT IN COMMAND

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