NTSB Identification: FTW88FA069.
The docket is stored on NTSB microfiche number 36329.
Accident occurred Saturday, February 20, 1988 in BIG SPRING, TX
Probable Cause Approval Date: 06/09/1989
Aircraft: TAYLORCRAFT BC12-D, registration: N29779
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 ON A LOCAL PLEASURE FLIGHT PRACTICING AEROBATIC MANEUVERS IN THE VICINITY OF THE AIRPORT. WITNESSES THOUGHT THE PILOT WAS ENTERING THE PATTERN FOR LANDING AT THE COMPLETION OF THE AEROBATIC PRACTICE. THEY NOTED A POWER REDUCTION AFTER WHICH THE AIRCRAFT ASSUMED AN APPROXIMATE 45 DEGREES NOSE DOWN ATTITUDE THAT CONTINUED UNTIL IT COLLIDED WITH THE GROUND. POST MORTEM STUDIES SHOWED MARKED ATHEROSCLEROTIC CARDIOVASCULAR DISEASE, WITH SIGNIFICANT THREE VESSEL CORONARY ARTERY DISEASE. BOTH THE PATHOLOGIST AND THE PARTICIPATING FAA ASSISTANT REGIONAL FLIGHT SURGEON CONSIDERED THAT THE PILOT PROBABLY HAD A SUDDEN SEVERE INFLIGHT INCAPACITATION IN THIS INSTANCE.

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

INCAPACITATION(CARDIOVASCULAR)..PILOT IN COMMAND

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