NTSB CAROL · Event
Event ERA13CA423
Aircraft involved
Probable cause & findings
The flight instructor's failure to maintain adequate airspeed during takeoff, which resulted in an aerodynamic stall and collision with terrain.
Factual narrative
According to the flight Instructor (CFI), he was demonstrating a soft field takeoff to the student pilot. The engine run-up and takeoff roll were uneventful. The CFI stated the airplane began to drift to left after liftoff from the runway. The CFI applied full right rudder but continued to drift left of runway centerline. Unable to climb, the CFI added that he saw 55 knots on the airspeed indicator prior to exiting the left side of runway. The CFI then decreased engine power, and collided with a parked hang glider on the grass taxiway, just prior to impacting terrain. Examination of the airplane revealed substantial damage to the firewall and right wing. The CFI reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. According to the flight Instructor (CFI), he was demonstrating a soft field takeoff to the student pilot. The engine run-up and takeoff roll were uneventful. The CFI stated the airplane began to drift to left after liftoff from the runway. The CFI applied full right rudder but continued to drift left of runway centerline. Unable to climb, the CFI added that he saw 55 knots on the airspeed indicator prior to exiting the left side of runway. The CFI then decreased engine power, and collided with a parked hang glider on the grass taxiway, just prior to impacting terrain. Examination of the airplane revealed substantial damage to the firewall and right wing. The CFI reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. 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).
- C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Airspeed-Not attained/maintained - C
- C Personnel issues-Task performance-Use of equip/info-Aircraft control-Instructor/check pilot - C
- — Environmental issues-Physical environment-Object/animal/substance-Aircraft-Contributed to outcome
Verbatim from NTSB's published report. Source file
NTSB_2013_ERA13CA423.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 ↗