NTSB Identification: CHI83FET01.
The docket is stored on NTSB microfiche number 20942.
Accident occurred Friday, August 12, 1983 in WABASH, IN
Aircraft: ROBINSON R-22, registration: N9031F
Injuries: 1 Uninjured.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

DURING AUTOROTATION PRACTICE, WHEN THE PILOT ROLLED THE THROTTLE OFF, THE ENGINE QUIT. AN ENGINE RESTART WAS ATTEMPTED. THIS TIME LAPSE ALLOWED THE ROTOR RPM TO DECAY AND A PROPER AUTOROTATION COULD NOT BE DONE IN THEREMAINING ALTITUDE. THE ACFT LANDED HARD HITTING A FARM FENCE AND ROLLING OVER. BEFORE TAKEOFF THE PILOT DID NOT TOP OFFTHE FUEL BUT ESTIMATED 15 GALLONS ABOARD. THREE DAYS AFTER THE CRASH THERE WAS NO FUEL IN THE TANK OR THE FUEL SYSTEM. THERE WERE NO FUEL STAINS ON THE OVERTURNED FUSELAGE. THERE DID SEEM TO BE SOME EVIDENCE OF FUEL SMELL ON THE GROUND. INSPECTION OF THE ENGINE DID NOT REVEAL ANYTHING TO PREVENT NORMAL OPERATION.

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

REASON FOR OCCURRENCE UNDETERMINED

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

ADEQUATE ROTOR RPM..NOT MAINTAINED..PILOT IN COMMAND

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