NTSB Identification: FTW86FPJ05.
The docket is stored on NTSB microfiche number 30158.
Accident occurred Saturday, February 01, 1986 in OWASSO, OK
Aircraft: STEPHENSON TEENIE TWO, registration: N106TD
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 ACFT DESCENDED TO GROUND IMPACT IN A STEEP TURN WHILE PRACTICING LAZY EIGHT MANEUVERS. THE LAST TURN WAS VERY STEEP AT LOW ALT AND THE ACFT DISAPPEARED BEHIND TREES. THE PLT WAS REPORTEDLY CHECKING THE ACFT'S STABILITY FOR THE OWNER. THE GROUND IMPACT ANGLE WAS 65-85 DEGREES AND THE ACFT ONLY MOVED ABOUT 4 FT AFTER IMPACT

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

ALTITUDE..NOT MAINTAINED..PILOT IN COMMAND

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

CLEARANCE..NOT MAINTAINED..PILOT IN COMMAND

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

SPIRAL..NOT CORRECTED..PILOT IN COMMAND



Contributing Factors

AEROBATICS..PERFORMED..PILOT IN COMMAND

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