NTSB Identification: MKC86FA077.
The docket is stored on NTSB microfiche number 30301.
Accident occurred Monday, March 31, 1986 in ST. LOUIS, MO
Aircraft: DONALD R. CASPER SKYOTE, registration: N106DC
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 BUILT THE HOMEBUILT AIRPLANE FROM DATA OBTAINED FROM SKYOTE AEROMARINE LTD. AT THE TIME OF THE ACCIDENT, THE AIRPLANE HAD 51 HOURS ON IT AND THE PILOT/BUILDER HAD FLOWN ALL OF THE 51 HOURS. ON THIS FLIGHT HE WAS OBSERVED TO DEPART ON RUNWAY 16, FLY OUT FOR OVER A MILE, MAKE AN ABRUPT 180 DEGREE TURN WITH THE WINGS BANKED 90 DEGREES. THE WINGS WERE LEVELED FOR SEVERAL SECONDS AND THEN THE AIRPLANE ENTERED A LEFT NOSEDOWN SPIRAL. AFTER ONE COMPLETE TURN, THE AIRPLANE STOPPED TURNING BUT CONTINUED IN A 70 TO 80 DEGREES NOSEDOWN ATTITUDE UNTIL IT COULD NO LONGER BE SEEN DUE TO TREES IN THE LINE OF SIGHT. THE AIRPLANE IMPACTED IN A WIDE OPEN, LEVEL FIELD, ALMOST STRAIGHT DOWN. NO PREIMPACT PROBLEMS WITH THE AIRPLANE COULD BE FOUND.

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

SPIRAL..NOT CORRECTED..PILOT IN COMMAND

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