NTSB CAROL · Event
Event SEA83FYK04
Registry · N4GT
FAA Aircraft Registry record.
Make / Model
CIRRUS DESIGN SF50
Year of manufacture
2023
Engine
WILLIAMS FJ33-5A
Seats / Engines
7 seats · 1 engine
Last airworthiness date
20230131
ADS-B equipped
Yes — Mode-S A4A897
Registrant of record
SRJ LLC
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Factual narrative
UPON COMPLETION OF HIS ROUTINE DURING AN AIRSHOW, THE PLT STATED TO THE SHOW ANNOUNCER THAT HE WOULD DO A LOW PASS DOWN THE RWY FOLLOWED BY A VERTICAL CLIMB TO A HAMMERHEAD STALL & THEN INTO A LOMCEVAK AEROBATIC MANEUVER. THIS MANEUVER IS ACLIMBING OUTSIDE SNAP ROLL THAT IS PERFORMED IN SUCH A WAY THAT THE ACFT'S UPWARD INERTIA OVERCOMES ITS NORMAL AERODYNAMIC SNAP ROLL TENDENCIES, CAUSING IT TO TUMBLE END-OVER-END BRIEFLY BEFORE IT DETERIORATES INTO A FLAT INVERTED SPIN. ENTRY INTO THE MANEUVER WITH ACFT SUCH AS THE EAGLE IIIS AT AN ALTITUDE OF AT LEAST 1,000 AGL AT SEA LEVEL. THE ENTRY ALTITUDE MUST BE INCREASED TO COMPENSATE FOR THE REDUCTION OF THE ACFT'S VERTICAL PENETRATION WHICH OCCURS WHEN THE MANEUVER IS PERFORMED AT HIGHER ALTITUDES. A VIDEOTAPE OF THE ACCIDENT SHOWED THAT THE PLT INITIATED THE MANEUVER ATA PULL-UP ALTITUDE OF 500-600 FT AGL. THE DENSITY ALTITUDE AT THE ALTITUDE THAT THE PLT ENTERED THE MANEUVER WAS 6,800 FT. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1983_SEA83FYK04.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
What the literature says.
Academic papers and agency reports matching this event's aircraft type or causal vocabulary (stall). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- 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 …
- 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…
- Embry-Riddle Scholarly Commons 2021 · Journal article (JAAER)
Analysis on the Negative Emotional, Physiological, and Cognitive Responses Elicited from of the Activation of a Stall Alarm
Failing to identify an aerodynamic stall can lead to the inability of an aircraft to sustain flight. To warn pilots of an impending or fully-developed stall, many aircraft have safety devices installe…
Browse the full corpus — academia portal ↗