FTW90DRG01
1989-10-26 · SAN ANTONIO, Texas, United States · Serious · 1 aircraft · Status: Completed
Airport 74R
Current FAA registration · N77707
- Make / Model
- MCCLISH FUNK B85C
- Year of manufacture
- 1946 · 43 years old at event
- Engine
- CONT MOTOR C85 SERIES (85 hp)
- Seats / Engines
- 2 seats · 1 engine
- Last airworthiness date
- 19560822
- ADS-B equipped
- Yes — Mode-S AA8580
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
FAILURE OF THE PILOT TO MAINTAIN AIRSPEED, WHICH RESULTED IN A STALL. THE UNFAVORABLE/GUSTY WIND CONDITION WAS A RELATED FACTOR.
Factual narrative
WHEN THE PILOT TOOK OFF, THERE WERE NUMEROUS THUNDERSTORMS & RAINSHOWERS IN THE AREA. TOWERING CUMULUS CLOUDS WERE REPORTED IN ALL QUADRANTS & THE WIND WAS REPORTED TO BE GUSTING TO 25 KTS. AFTER DEPARTING FROM RUNWAY 16, THE PILOT MADE RIGHT TURNS TO THE NORTH & BEGAN A CLIMB. ACCORDING TO WITNESSES, THE ACFT WAS CLIMBING IN A NOSE HIGH ATTITUDE WHEN IT ENTERED A DESCENT & CRASHED. IMPACT OCCURRED JUST WEST OF THE ARPT. NO PREIMPACT PART FAILURE OR MALFUNCTION OF THE AIRCRAFT WAS FOUND. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1989_FTW90DRG01.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
Search this event elsewhere
External sources are reported, not agency: signal that something happened, not fact about what happened.
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Related research
Matched on aircraft type or causal vocabulary (stall, thunderstorm). All research papers
- NASA NTRS 2026 · Conference Paper Computational Analysis of Steady State Aerodynamics of Transonic Truss-Braced Wing Configuration in Deep Stall
This study presents a computational investigation of steady state aerodynamics of the Subsonic Ultra-Green Aircraft Research (SUGAR) Transonic Truss-Braced Wing (TTBW) configuration over a wide range …
- Embry-Riddle Scholarly Commons 2024 · Journal article (IJAAA) The Impact of Thunderstorms on Take-off Data in South Africa
Aviation and meteorology are entwined disciplines, as aviation occurs in the atmosphere. Prevailing weather conditions at take-off are of utmost importance to aviation.
- arXiv 2023 · arXiv preprint Automating Bird Diverter Installation through Multi-Aerial Robots and Signal Temporal Logic Specifications
This paper tackles the task assignment and trajectory generation problem for bird diverter installation using a fleet of multi-rotors.
- arXiv 2023 · arXiv preprint Variation of Critical Crystallization Pressure for the Formation of Square Ice in Graphene Nanocapillaries
Two-dimensional square ice in graphene nanocapillaries at room temperature is a fascinating phenomenon and has been confirmed experimentally.
- arXiv 2023 · arXiv preprint Polycrystallinity enhances stress build-up around ice
Damage caused by freezing wet, porous materials is a widespread problem, but is hard to predict or control. Here, we show that polycrystallinity makes a great difference to the stress build-up process…
- arXiv 2022 · arXiv preprint Enhanced Prediction of Three-dimensional Finite Iced Wing Separated Flow Near Stall
Icing on three-dimensional wings causes severe flow separation near stall. Standard improved delayed detached eddy simulation (IDDES) is unable to correctly predict the separating reattaching flow due…