NTSB Identification: MIA84FA104.
The docket is stored on NTSB microfiche number 24352.
Accident occurred Monday, March 12, 1984 in SANFORD, FL
Aircraft: GROSS BENSON B-8M, registration: N3154A
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 STUDENT PLT & THE PLTS OF 2 OTHER BENSON GYROCOPTERS TOOK OFF FROM A PRIVATE STRIP & PROCEEDED TO FLY IN A LOOSE FORMATION. THE PLTS OF THE OTHER 2 GYROCOPTERS DID NOT WITNESS THE ACCIDENT, BUT NOTICED THAT 1 OF THE 3 WAS MISSING. WITNESSES ON THE GROUND STATED THAT THEY NOTICED THE GYROCOPTER OSCILLATED UP & DOWN AND FORE & AFT PRIOR TO IT IMPACTING WITH TREE TOPS. THE STUDENT PLT WAS NOT INDORSED FOR FLT IN ANY ACFT. HIS WIFE STATED THAT HE HAD RECEIVED INSTRUCTION BY USING A TRAINING DEVICE THAT WAS TOWED BEHIND A VEHICLE. NO SIGNS OR EVIDENCE OF PREEXISTING STRUCTURAL FAILURE WERE NOTED.

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

AIRCRAFT HANDLING..NOT MAINTAINED..PILOT IN COMMAND


Contributing Factors

OBJECT..TREE(S)


Contributing Factors

PROCEDURES/DIRECTIVES..NOT MAINTAINED..PILOT IN COMMAND


Contributing Factors

INADEQUATE TRAINING..PILOT IN COMMAND


Contributing Factors

JUDGMENT..POOR..PILOT IN COMMAND


Contributing Factors

LACK OF TOTAL EXPERIENCE..PILOT IN COMMAND


Contributing Factors

OVERCONFIDENCE IN PERSONAL ABILITY..PILOT IN COMMAND

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