NTSB Identification: LAX86FA012.
The docket is stored on NTSB microfiche number 30435.
Accident occurred Sunday, October 13, 1985 in TRACY, CA
Aircraft: KEN BROCK MFG. CO KB-2, registration: N199CR
Injuries: 1 Fatal.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE INEXPERIENCED STUDENT PILOT APPLIED EXCESSIVE MAIN ROTORCONTROL INPUTS WHILE FLYING ON THE DOWNWIND LEG OF THE TRAFFIC PATTERN. THE MAIN ROTOR BLADES FLEXED DOWNWARD AND SEVERED THE PUSHING PROPELLER AND EMPENNAGE. THE GYROPLANE PITCHED FORWARD AND COLLIDED WITH THE GROUND.

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

AIRCRAFT HANDLING..IMPROPER..PILOT IN COMMAND

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

MANEUVER..EXCESSIVE..PILOT IN COMMAND

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

CYCLIC..EXCESSIVE..PILOT IN COMMAND

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

LACK OF FAMILIARITY WITH GEOGRAPHIC AREA..PILOT IN COMMAND


Contributing Factors

FLIGHT CONTROL,RUDDER..LOSS,TOTAL

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