NTSB CAROL · Event
Event WPR21LA058
Aircraft involved
Probable cause & findings
The pilot’s failure to maintain control while maneuvering at low altitude.
Factual narrative
On November 15, 2020, about 1040 Pacific standard time, an experimental Air Creation Tanarg, weight-shift control aircraft, N912SU, was substantially damaged when it was involved in an accident near Pahrump, Nevada. The pilot received a minor injury. The aircraft was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. According to the pilot, he was flying east toward Mt. Charleston about 400 ft above ground level (agl). He observed a herd of horses and was circling above them. When he came out of the last shallow turn, he realized that he was “a bit low.” He applied throttle, but the aircraft did not climb, and descended and impacted terrain, which resulted in substantial damage to the frame. The aircraft came to rest upright on uneven desert terrain with sparsely populated vegetation. All major components remained attached to the frame. The wings collapsed downward to the ground. The instrument panel separated but remained attached to the frame by wires. The three-bladed composite propeller sustained damage to all blades. Examination and a test run of the engine by an airframe and powerplant mechanic and overseen by a representative of the Federal Aviation Administration revealed no mechanical malfunctions or failures that would have precluded normal operation. The mechanic used the installed throttle assembly and reported that the throttle operated normally with no resistance. The pilot of the weight-shift-control aircraft was maneuvering at low altitude when he applied throttle to begin a climb; however, the aircraft continued to descend until it impacted terrain. Examination and test run of the engine after the accident revealed no mechanical malfunctions or failures that would have precluded normal operation. The circumstances of the accident are consistent with the pilot’s failure to maintain control while maneuvering at low altitude. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).
- — Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot
Verbatim from NTSB's published report. Source file
NTSB_2020_WPR21LA058.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…
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