NTSB Identification: ANC88LA150.
The docket is stored on NTSB microfiche number 37302.
Accident occurred Thursday, June 16, 1988 in MEKORYUK, AK
Probable Cause Approval Date: 10/02/1989
Aircraft: ROBINSON R22HP, registration: N9076D
Injuries: 2 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.

THE PILOT-IN-COMMAND WAS HERDING REINDEER FOR A NATIVE CORPORATION AND HE AND HIS PASSENGER HAD TO RELIEVE THEMSELVES SO THEY LANDED ON THE TUNDRA AND LEFT THE HELICOPTER'S ENGINE AND ROTORS OPERATING. AS THEY WERE EXITING THE HELICOPTER, IT SHIFTED ON THE TUNDRA AND THE TAILBOOM WAS FORCED UPWARD INTO THE MAIN ROTOR SYSTEM CAUSING SUBSTANTIAL DAMAGE TO THE TAILBOOM, TAILROTOR, AND MAIN ROTOR SYSTEM.

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

UNSUITABLE TERRAIN OR TAKEOFF/LANDING/TAXI AREA..SELECTED..PILOT IN COMMAND

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

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

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

AIRCRAFT UNATTENDED/ENGINE(S) RUNNING..IMPROPER..PILOT IN COMMAND


Contributing Factors

TERRAIN CONDITION..ROUGH/UNEVEN


Contributing Factors

TERRAIN CONDITION..TUNDRA

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