WPR18TA238
2018-08-20 · Brownsville, Oregon, United States · Serious · 1 aircraft · Status: Completed
Current FAA registration · N140JL
- Make / Model
- RANS S-14
- Year of manufacture
- 1992 · 26 years old at event
- Engine
- ROTAX 503 DCDI (52 hp)
- Seats / Engines
- 1 seats · 1 engine
- Last airworthiness date
- 20070921
- ADS-B equipped
- Yes — Mode-S A0A383
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot's exceedance of the airplane's critical angle of attack while maneuvering at low altitude, which resulted in an aerodynamic stall, loss of control, and impact with terrain.
Factual narrative
On August 20, 2018, about 1640 Pacific daylight time, a Rans S14 airplane, N140JL, was substantially damaged when it was involved in an accident near Brownsville, Oregon. The sport pilot received serious injuries. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot stated he had planned to overfly and photograph the location of a recent concert venue. As he arrived over the venue, he descended to about 600 ft above ground level (agl) and decelerated to about 60 miles per hour (mph) before entering a steep left turn. During the turn, he felt the airplane stall, and he attempted to recover as the airplane impacted the ground and struck a fence. The pilot reported there were no mechanical anomalies that would have precluded normal flight. The sport pilot was circling about 600 ft above ground level and taking photographs of a concert venue. He stated that he slowed the airplane to about 60 mph before entering a steep left turn. During the turn, the airplane stalled and subsequently impacted the ground. The pilot reported that there were no pre-impact mechanical anomalies with the airplane that would have precluded normal operation. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
FAA avdata. C = Cause, F = Factor.
- C Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot
- F Personnel issues-Psychological-Attention/monitoring-Monitoring equip/instruments-Pilot
- — Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Angle of attack-Not attained/maintained
Verbatim from NTSB's published report. Source file
NTSB_2018_WPR18TA238.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.
- TallyAero Live Wire Aviation press
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Related research
Matched on aircraft type or causal vocabulary (stall, loss of control). All research papers
- Semantic Scholar 2016 · Article (Interacción) Trajectory Recovery System: Angle of Attack Guidance for Inflight Loss of Control
This paper describes the design and development of an ecological display to aid pilots in the recovery of an In-Flight Loss of Control event due to a Stall (ILOC-S).
- NTSB Aircraft Accident Reports 2010 · Accident report Loss of Control on Approach — Colgan Air Flight 3407
Colgan Air 3407 / Continental Connection (Q400) Buffalo NY, February 12, 2009 — 50 fatalities. Definitive investigation of the Colgan 3407 stall-stick-pusher crash on approach to Buffalo.
- 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 …
- Embry-Riddle Scholarly Commons 2025 · Journal article (JAAER) A Scoping Review of Aviation Loss of Control Inflight Research
Loss of control – inflight (LOC-I) contributes to aircraft accidents at unacceptably high rates. Significant industry efforts and research have aimed to improve LOC-I prevention, detection, and recove…
- SKYbrary (Eurocontrol) 2024 · SKYbrary article Loss of Control In-Flight (LOC-I) — SKYbrary Knowledge Base
SKYbrary comprehensive knowledge-base entry on Loss of Control In-Flight — definitions, contributing factors, accident case studies (Air France 447, Colgan 3407), and prevention strategies.
- Semantic Scholar 2024 · Article (International Conference on Networking and Services) Risk Assessment of Loss of Control In-Flight Trajectories for Urban Air Mobility Safety
In Urban Air Mobility (UAM), maintaining a minimum separation between aircraft is a safety requirement, which becomes challenging amidst congested air traffic and off-nominal conditions, such as Loss …