NTSB Identification: NYC87LA210.
The docket is stored on NTSB microfiche number 35965.
Accident occurred Friday, July 24, 1987 in MARSTON MILLS, MA
Probable Cause Approval Date: 06/16/1989
Aircraft: BELL 47G3, registration: N6355
Injuries: 2 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.

THE HELICOPTER REACHED AN ALTITUDE OF ABOUT 50 FEET WHEN A LOSS OF POWER WAS EXPERIENCED. IMMEDIATELY THE PILOT SET UP FOR AN EMERGENCY LANDING AND SET THE HELICOPTER DOWN. THE AIRCRAFT, HOWEVER, COLLIDED WITH THE GROUND HARD AND INCURRED SUBSTANTIAL DAMAGE. CONDITIONS WERE CONDUCIVE TO CARBURETOR ICING DURING GLIDE POWER, NOT TKOF POWER. INVESTIGATION REVEALED THAT FUEL WAS IN THE FUEL TANKS. NO REASON WAS FOUND THAT COULD EXPLAIN THE LOSS OF POWER TO THE ENGINE.

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

REASON FOR OCCURRENCE UNDETERMINED


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