NTSB Identification: CHI86LA219.
The docket is stored on NTSB microfiche number 33054.
Accident occurred Saturday, September 06, 1986 in WEST LAFAYETTE, IN
Aircraft: HUGHES 500 (369HS), registration: N2254X
Injuries: 2 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 HELICOPTER WAS AT A LOW ALTITUDE HOVER VIDEO TAPING AN ATHLETIC EVENT WHEN THE AFT FLEX COUPLING ON THE TAIL ROTOR FAILED. THE PLT WAS UNABLE TO REGAIN CONTROL AND DURING DESCENT THE MAIN ROTOR BLADES STRUCK THE ROOF OF A RESIDENCE. THE HELICOPTER THEN FELL INTO THE YARD.

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

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


Contributing Factors

ROTOR DRIVE SYSTEM,TAIL ROTOR DRIVE SHAFT..CORRODED


Contributing Factors

ALTITUDE..DELAYED..PILOT IN COMMAND



Contributing Factors

AUTOROTATION..NOT ATTAINED..PILOT IN COMMAND


Contributing Factors

ROTOR DRIVE SYSTEM,TAIL ROTOR DRIVE SHAFT..BRITTLE FRACTURE


Contributing Factors

AUTOROTATION..NOT POSSIBLE..PILOT IN COMMAND


Contributing Factors

MAINTENANCE..IMPROPER..COMPANY MAINTENANCE PERSONNEL

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