NTSB CAROL · Event
Event FTW85FA331
Aircraft involved
Factual narrative
THE GLIDER WAS THERMALING IN A SLOW RIGHT CLIMBING TURN ABOUT 600 FEET ABOVE GROUND LEVEL. WITNESSES STATED IT STARTED A RIGHT SPIRALING DESCENT AND THE NOSE SUDDENLY DROPPED UNTIL IT WAS IN A NEAR VERTICAL ATTITUDE. THE SPIRAL THEN DEVELOPED INTO A TIGHT RIGHT HAND SPIN WHICH CONTINUED UNTIL GROUND IMPACT OCCURRED. THE WITNESS ESTIMATED THE ALTITUDE AT 300 FEET ABOVE THE GROUND WHEN THE SPIN STARTED. SEVERAL DIFFERENT PILOTS WHO ARE QUITE FAMILIAR WITH GLIDER OPERATION STATED NO PILOT SHOULD ATTEMPT THERMALING (RECEIVING ADEQUATE LIFT FOR FLIGHT FROM RISING AIR CURRENTS) UNLESS HIS ALTITUDE IS AT LEAST 1000 FEET ABOVE GROUND LEVEL. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1985_FTW85FA331.txt.
Findings + structured fields enriched from FAA avall.mdb.
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