NTSB Identification: FTW86LRA06.
The docket is stored on NTSB microfiche number 30584.
Accident occurred Friday, January 24, 1986 in FREEPORT, TX
Aircraft: AEROSPATIALE AS-350D, registration: N3599X
Injuries: 1 Minor,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.
WHILE ON A MAINTENANCE TEST FLT THE HELICOPTER EXPERIENCED AN ENG FAILURE. AN AUTOROTATION WAS ENTERED AND A HARD LANDING OCCURRED WHICH RESULTED IN A ROLL OVER. THE FLT ORIGINATED AT OYSTER CREEK HELIPORT AND RETURNED TWICE FOR MAINTENANCE ADJUSTMENTS AND WAS TURNING FOR HOME A THIRD TIME WHEN THE ENG FAILED. POST ACCIDENT INSPECTION REVEALED THAT A GAS PRODUCER TURBINE WHEEL BLADE HAD SEPARATED.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:TURBINE ASSEMBLY,TURBINE BLADE..FAILURE,TOTAL
The National Transportation Safety Board determines the probable cause(s) of this accident to be:FLARE..IMPROPER..PILOT IN COMMAND
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