NTSB Identification: BFO92LA117.
The docket is stored on NTSB microfiche number 47079.
Accident occurred Saturday, July 25, 1992 in SANFORD, ME
Probable Cause Approval Date: 06/30/1993
Aircraft: ROBINSON R22A, registration: N8557Y
Injuries: 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 AN AUTOROTATION DEMONSTRATION FLIGHT BY THE STUDENT, THE HELICOPTER TOUCHED DOWN IN A SOFT GRASSY AREA RESULTING IN THE SKIDS DIGGING INTO THE GROUND. ACCORDING TO THE PILOT, HE HAD COMPLETED 5 AUTOROTATIONS IN ANOTHER AREA IN THE CENTER OF THE AIRPORT, WHEN HIS INSTRUCTOR REQUESTED HIM TO PERFORM ANOTHER AUTOROTATION CLOSER TO WHERE HE WAS LOCATED. THE PILOT STATED THAT EVERYTHING WAS NORMAL UNTIL UPON TOUCHDOWN WHEN THE HELICOPTER SLID FORWARD APPROXIMATELY 26 FEET ON THE GROUND. DURING THE SLIDE THE LANDING SKID DUG INTO THE GROUND, CAUSING THE HELICOPTER TO NOSE OVER.

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

THE PILOT'S SELECTION OF UNSUITABLE TERRAIN TO EXECUTE A LANDING.

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