NTSB Identification: MIA83LA196.
The docket is stored on NTSB microfiche number 21861.
Accident occurred Friday, August 05, 1983 in MIAMI, FL
Aircraft: BELL 47G-2, registration: N471KC
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 A RATED SINGLE ENG, MULTIENGINE, LAND PLT, BUT DID NOT HAVE A HELICOPTER RATING. DURING A DUAL INSTRUCTIONAL FLT, HE HAD JUST COMPLETED THE FINAL PHASE OF AN AUTOROTATION & THE SKIDS WERE ON THE GROUND, WHEN HE ABRUPTLY PULLED THE COLLECTIVE PITCH TO THE FULL UP POSITION. ACCORDING TO HIS INSTRUCTOR (CFI), THE HELICOPTER LIFTED OFF THE GROUND, THEN THE STUDENT PULLED THE CYCLIC FULL AFT & TO THE RIGHT & FROZE ON THE CONTROLS. THE CFI REPORTED THAT HE OVERPOWERED THE CYCLIC TO LEVEL THE HELICOPTER & WAITED FOR THE IMPACT. THE MAIN ROTOR BLADES, TAIL ROTOR ASSEMBLY, TAIL BOOM, CROSS TUBES & SKIDS WERE DAMAGED.

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

ROTORCRAFT FLIGHT CONTROLS..IMPROPER USE OF..DUAL STUDENT

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

HABIT INTERFERENCE..DUAL STUDENT

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

SUPERVISION..INADEQUATE..PILOT IN COMMAND(CFI)

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