NTSB Identification: ATL91FA005.
The docket is stored on NTSB microfiche number 45127.
Accident occurred Wednesday, October 17, 1990 in OCALA, FL
Probable Cause Approval Date: 12/30/1992
Aircraft: PITTS SPECIAL S-1, registration: N1235
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 PILOT WAS PRACTICING AEROBATIC MANEUVERS FOR AN UPCOMING COMPETITION. THE PILOT'S ROUTINE INCLUDED A SPIN MANEUVER WHICH REQUIRED TWO TURNS. ACCORDING TO A FRIEND, THE PILOT HAD EXPERIENCED SOME DIFFICULTY WITH SPIN ENTRY. THIS SPIN ENTRY WAS SHARPER AND THE NOSE WAS TUCKED APPROXIMATE 60 DEGREES INSTEAD OF THE NORMAL 45 DEGREES OF NOSE LOW ATTITUDE. AFTER APPROXIMATELY 8 TURNS THE WITNESS REALIZED THAT SOMETHING WAS WRONG. THE AIRPLANE IMPACTED THE GROUND IN AN UPRIGHT ATTITUDE ADJACENT TO THE SOD RUNWAY. THE AIRFRAME AND ENGINE EXAMINATIONS FAILED TO DISCLOSE ANY SYSTEM MALFUNCTION OR COMPONENT FAILURE.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: THE PILOT EXPERIENCCED SPATIAL DISORIENTATION, LOST CONTROL OF THE AIRPLANE DURING A SPIN MANEUVER AND COLLIDED WITH THE GROUND.
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