NTSB Identification: SEA88LA014.
The docket is stored on NTSB microfiche number 35533.
Accident occurred Monday, October 26, 1987 in LEBANON, OR
Probable Cause Approval Date: 12/27/1988
Aircraft: BELL 47G2, registration: N6141
Injuries: 2 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 STUDENT WAS PERFORMING AN AUTOROTATION AT ABOUT 50' AGL AND THE FLARE WAS BEGUN. THE INSTRUCTOR PILOT NOTICED THAT THE HELICOPTER WAS NOT LEVELING AND TOOK CONTROL OF THE AIRCRAFT. THE HELICOPTER SETTLED TAIL LOW ONTO THE SOFT GROUND STRIKING THE TAIL ROTOR, SEPARATING IT FROM THE HELICOPTER. THE HELICOPTER MADE A TURN AND THEN SETTLED TO THE GROUND WHERE IT ROLLED OVER ON ITS RIGHT SIDE.

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

AUTOROTATION..ATTEMPTED..DUAL STUDENT

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

REMEDIAL ACTION..DELAYED..PILOT IN COMMAND(CFI)

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

ALTITUDE..MISJUDGED..DUAL STUDENT

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