NTSB Identification: LAX86FUM04.
The docket is stored on NTSB microfiche number 33616.
Accident occurred Tuesday, September 02, 1986 in CHULA VISTA, CA
Aircraft: STEEN SKYBOLT UNK, registration: N64596
Injuries: 2 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.

DURING A LOCAL PLEASURE FLIGHT, THE AIRCRAFT WAS OBSERVED TO MAKE A CLIMBING RIGHT TURN TO THE INVERTED POSITION. WHEN OBSERVED A FEW SECONDS LATER, THE AIRCRAFT WAS RIGHT SIDE UP IN A SHALLOW SPIN. THE AIRCRAFT REMAINED IN THIS POSITION UNTIL COLLIDING WITH THE TERRAIN. INSPECTION OF THE WRECKAGE REVEALED NO SIGN OF FUEL IN THE FUEL TANKS OR AROUND THE WRECKAGE SITE.

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

STALL/SPIN..UNCONTROLLED..PILOT IN COMMAND


Contributing Factors

TERRAIN CONDITION..GROUND


Contributing Factors

LACK OF TOTAL EXPERIENCE IN TYPE OF AIRCRAFT..PILOT IN COMMAND


Contributing Factors

REMEDIAL ACTION..NOT ATTAINED..PILOT IN COMMAND


Contributing Factors

AEROBATICS..PERFORMED..PILOT IN COMMAND

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