NTSB Identification: SEA88LA147.
The docket is stored on NTSB microfiche number 37343.
Accident occurred Saturday, August 06, 1988 in ENTERPRISE, OR
Probable Cause Approval Date: 10/02/1989
Aircraft: BELL 206B, registration: N300TW
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.
WHILE IN CRUISE FLT AT ABT 500 FT AGL, THE PLT STATED HE HEARD A 'PING' SOUND FROM THE ENG AND PWR DECREASED TO FLT IDLE. AN AUTOROTATION WAS ATTEMPTED INTO A CLEARED UPSLOPING AREA BUT THE PLT HAD TO PULL 'UP' COLLECTIVE IN ORDER TO CLEAR A FENCE. A HARD LANDING RESULTED, CAUSING THE MAIN ROTOR TO CONTACT THE TAILBOOM. IN-DEPTH INVESTIGATION OF THE ENGINE FAILED TO REVEAL THE CAUSE OF THE ENGINE SPOOL-DOWN.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:REASON FOR OCCURRENCE UNDETERMINED
TERRAIN CONDITION..HIGH OBSTRUCTION(S)
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