NTSB Identification: NYC87LA217.
The docket is stored on NTSB microfiche number 36412.
Accident occurred Saturday, August 01, 1987 in STERLING, MA
Probable Cause Approval Date: 04/24/1989
Aircraft: ROBINSON R22, registration: N9078Z
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.

BEFORE FLYING SOLO, THE STUDENT PLT & HIS INSTRUCTOR (CFI) PRACTICED AUTOROTATIONS FOR ABOUT 1/2 HR. THE CFI DEPLANED & THE STUDENT TOOK OFF ON A SOLO FLT. HE FLEW TO A RESERVOIR AREA FOR MORE PRACTICE. AFTER DESCENDING FROM ABOUT 1000' TO 500', THE ENG LOST POWER. THE STUDENT MADE AN AUTOROTATION TO THE AN OPEN AREA NEAR THE RESERVOIR. HOWEVER, DURING TOUCHDOWN ON SLOPING TERRAIN, THE HELICOPTER ROLLED OVER. A POST-ACDNT EXAM WAS MADE, BUT NO ENG OR FUEL SYSTEM DISCREPANCIES WERE FOUND.

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

REASON FOR OCCURRENCE UNDETERMINED



Contributing Factors

TERRAIN CONDITION..ROUGH/UNEVEN


Contributing Factors

LACK OF TOTAL EXPERIENCE..PILOT IN COMMAND

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