NTSB Identification: LAX84FA097.
The docket is stored on NTSB microfiche number 23144.
Accident occurred Thursday, December 08, 1983 in GRAND CANYON, AZ
Aircraft: BELL 206B III, registration: N113ML
Injuries: 2 Serious,1 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 STRUCK A CABLE WHILE FLYING ABOUT 25 FT AGL IN THE GRAND CANYON. THE ACFT WAS ON AN AERIAL OBSERVATION TO SURVEY AND ACQUAINT A PASSENGER WITH THE ARIZONA STRIP WILDERNESS DISTRICT. PHOENIX FSS HIGHLY RECOMMENDS THAT PLTS NOT FLY DOWN INTO THE CANYON. THE CABLES WERE ABOUT 34 FT ABOVE THE SURFACE OF THE COLORADO RIVER AND THE HELICOPTER WENT BELOW THE CABLE WHICH CONTACTED THE MAIN ROTOR MAST AND SEPARATED IT FROM THE FUSELAGE. SINCE THIS ACCIDENT CABLES IN GRANDS CANYON NATIONAL PARK WERE MARKED WTH ORANGE BALLS.

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

VISUAL LOOKOUT..NOT POSSIBLE..PILOT IN COMMAND

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

JUDGMENT..POOR..PILOT IN COMMAND

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

PROPER ALTITUDE..NOT MAINTAINED..PILOT IN COMMAND

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

CLEARANCE..IMPROPER..PILOT IN COMMAND


Contributing Factors

TERRAIN CONDITION..WATER,ROUGH


Contributing Factors

OBJECT..WIRE,STATIC

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