NTSB Identification: NYC83FHM01.
The docket is stored on NTSB microfiche number 22445.
Accident occurred Sunday, May 15, 1983 in PLAINSBORO, NJ
Aircraft: BELL 47G, registration: N6597D
Injuries: 1 Minor.

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 ACFT COLLIDED WITH THE GROUND AFTER A TAIL ROTOR DRIVE SHAFT FAILED. THE PLT LOST TAIL ROTOR CONTROL DURING AN AERIAL APPLICATION MANEUVER. THE METALLURGIST REPORT OF EXAMINATION AND DISCOVERY OF FATIGUE FRACTURE AFTER THE ACCIDENT IS A PART OF THE FACTUAL REPORT. THE SHAFT THAT FAILED IS P/N 47644179-9.

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

ROTOR DRIVE SYSTEM,TAIL ROTOR DRIVE SHAFT BEARING..FATIGUE

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

ROTOR DRIVE SYSTEM,TAIL ROTOR DRIVE SHAFT BEARING..FAILURE,TOTAL

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