NTSB CAROL · Event
Event DCA86AA014
Registry · N802EA
FAA Aircraft Registry record.
Make / Model
TOMARK AERO CZ SRO VIPER SD-4
Year of manufacture
2024
Engine
ROTAX 912ULS2 (100 hp)
Seats / Engines
2 seats · 1 engine
Last airworthiness date
20241108
ADS-B equipped
Yes — Mode-S AAE9B0
Registrant of record
CINCA AIRCRAFTS LLC
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Factual narrative
THE RT MAIN LNDG GEAR WOULD NOT EXTEND FOR LNDG AT WASH NATL ARPT. THE LNDG WAS ABORTED AND THE CREW ATTEMPTED TO CORRECT THE SITUATION BUT WERE UNSUCCESSFUL. AN EMERGENCY GEAR-UP LNDG WAS MADE AT DULLES INTERNATL ARPT. THE CREW AND PASSG EVACUATED WITHOUT INJURY. POST ACC EXAM SHOWED THAT THE RT DOWNLOCK LINK BEARING HAD CORRODED AND SEIZED; BOEING PART #BACB10B107J. THERE IS NO EXTERNAL PROVISION FOR LUBRICATION OF THIS PART AND NO REQUIRMENT FOR DISASSEMBLY TO INSPECT OR LUBRICATE. AN 'INSTALLED' INSPECTION WAS DONE AT 'A' CHECKS EACH 130 HRS AND 'C' CHECKS EVERY 36 DAYS. THE MOST RECENT WAS AN 'A' CHECK ON 10/28/85. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1986_DCA86AA014.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 ↗