NTSB Identification: MIA86LA138.
The docket is stored on NTSB microfiche number 30553.
Accident occurred Monday, April 14, 1986 in NORTH PORT, FL
Aircraft: BELL UH-1B, registration: N4242T
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 FLT EXPERIENCED AN ENG FAILURE AT AN ALT OF APRX 8 FT AGL SHORTLY AFTER TAKEOFF AND THE HELICOPTER SUSTAINED SUBSTANTIAL DAMAGE WHEN A HARD LANDING WAS MADE. POST ACCIDENT INSPECTION OF THE ENG REVEALED THE PWR TURBINE WHEEL EXPERIENCED A LOSS OF TWO TURBINE BLADES WHICH IN TURN CAUSED THE TURBINE SECTION OF THE ENG TO SEIZE, SHEARING THE DRIVE SHAFT TO THE COMPRESSOR SECTION OF THE ENG. THE FAILURE POINT OF THE TWO TURBINE BLADES REVEALED BURNING WHICH IS EVIDENT OF PRE-EXISTING CRACKS.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:TURBINE ASSEMBLY,TURBINE BLADE..FATIGUE
The National Transportation Safety Board determines the probable cause(s) of this accident to be:TURBINE ASSEMBLY,TURBINE BLADE..FAILURE,TOTAL
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