NTSB Identification: LAX85LA299.
The docket is stored on NTSB microfiche number 28937.
Accident occurred Friday, June 28, 1985 in GRAND CANYON, AZ
Aircraft: BELL 206B3, registration: N2766Y
Injuries: 1 Minor,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.

DURING A MOVIE FILMING FLIGHT, THE HELICOPTER WAS ACTING AS THE CAMERA PLATFORM AND FILMING A FIXED WING AIRCRAFT DURING A STRAIGHT IN APPRAOCH TO THE AIRPORT, THE PLT OF THE HELICOPTER REQUESTED A RIGHT 180 DEGREE TURN AT MID FIELD TO LAND AT THE NORTH HELIPAD RAMP AREA. WITNESSES SAW THE HELICOPTER START AN 'ABRUPT CLIMBING RIGHT TURN,' THEN YAW AS IT DESCENDED INTO THE GROUND. THE HELICOPTER ROLLED OVER ON TOUCHDOWN WITH THE SLOPING GROUND AT THE NORTH AIRPORT BOUNDARY. THE PILOT STATED THEREWERE NO MALFUNCTIONS OR FAILURES OF THE HELICOPTER AND THAT HE ENCOUNTERED A 'LOSS OF TAIL ROTOR EFFECTIVENESS'DURING THE TURN TO THE LANDING AREA.

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

AIRCRAFT PERFORMANCE..EXCEEDED

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

TERRAIN CONDITION..DOWNHILL

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

PROCEDURES/DIRECTIVES..NOT FOLLOWED..PILOT IN COMMAND


Contributing Factors

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


Contributing Factors

PERFORMANCE DATA..NOT OBTAINED..PILOT IN COMMAND


Contributing Factors

JUDGMENT..POOR..PILOT IN COMMAND

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