NTSB Identification: SEA83LA083.
The docket is stored on NTSB microfiche number 20251.
Accident occurred Tuesday, April 19, 1983 in NEAR NORDM, ID
Aircraft: HILLER 12-E, registration: N62409
Injuries: 3 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 AIRCRAFT BROKE THROUGH CRUSTED SNOW ON A COUNTY ROAD DURING LANDING AND ROLLED OVER. THE HELICOPTER WAS ON A BUSINESS FLIGHT AND THE PILOT DID NOT CLAIM ANY MECHANICAL DISCREPANCIES. THE WEATHER WAS VMC AND NONE OF THE 3 OCCUPANTS WERE INJURED. THE SNOW AT THE SCENE WAS ABOUT 4 FEET DEEP. DURING THE RUN ON LANDING THE SKIDS BROKE THROUGH THE CRUSTED TOP OF THE SNOW CAUSING THE HELICOPTER TO TIP FOWARD STRIKING THE MAIN ROTOR BLADES. THE AIRCRAFT YAWED TO THE RIGHT AND CAME TO REST ON ITS LEFT SIDE.

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:

RUN ON LANDING..PERFORMED..PILOT IN COMMAND


Contributing Factors

TERRAIN CONDITION..SNOW COVERED


Contributing Factors

TERRAIN CONDITION..ICY

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