WPR23LA243
2023-06-24 · Cave Junction, Oregon, United States · None · 1 aircraft · Status: Completed
Airport 3S4
Current FAA registration · N729U
- Make / Model
- KITFOX KITFOX II
- Year of manufacture
- 1992 · 31 years old at event
- Engine
- BOMBARDIER ROTAX (ALL)
- Seats / Engines
- 2 seats · 1 engine
- Last airworthiness date
- 19920507
- ADS-B equipped
- Yes — Mode-S A9C6BD
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot’s failure to maintain proper airspeed and his exceedance of the airplane’s critical angle of attack during takeoff, which resulted in an aerodynamic stall.
Factual narrative
On June 24, 2023, about 0900 Pacific daylight time, an experimental, amateur-built Kitfox 2, N729U, was substantially damaged when it was involved in an accident near Illinois Valley Airport, Cave Junction, Oregon. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot stated he had flown the airplane to the departure airport the day before to practice maneuvers. He placed the airplane in a hangar overnight and planned for the flight in the following morning. On the day of the accident, after performing a preflight inspection, the pilot departed runway 36. As the airplane became airborne, it climbed to about 30 ft above ground level, with the pilot applying left rudder to counteract the torque from the engine. The airplane entered an aerodynamic stall and began an uncommanded left turn. The pilot did not have enough altitude to recover and the airplane continued to turn left. The right wing struck a tree and the airplane impacted the ground and came to rest upright. The pilot reported no preimpact mechanical malfunctions or failures that would have precluded normal operation. A Federal Aviation Administration certified mechanic examined the airplane following the accident. There was no evidence of a mechanical malfunction and all control linkages were intact and operational. The pilot stated that he was departing at the time of the accident. As the airplane became airborne, it climbed to about 30 ft above ground level and the pilot was applying left rudder to counteract the torque from the engine. The airplane entered an aerodynamic stall and began an uncommanded left turn. The pilot did not have enough altitude to recover and the airplane continued to turn left. The right wing struck a tree and the airplane impacted the ground and came to rest upright. The pilot reported no preimpact mechanical malfunctions or failures that would have precluded normal operation. A postaccident examination revealed that there was no evidence of a mechanical malfunction and all control linkages were intact and operational. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
FAA avdata. C = Cause, F = Factor.
- — Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Angle of attack-Not attained/maintained
- — Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot
Verbatim from NTSB's published report. Source file
NTSB_2023_WPR23LA243.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). All research papers
- NASA NTRS 2026 · Conference Paper Computational Analysis of Steady State Aerodynamics of Transonic Truss-Braced Wing Configuration in Deep Stall
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- arXiv 2023 · arXiv preprint Polycrystallinity enhances stress build-up around ice
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- 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…