NTSB CAROL · Event
Event FTW04LA103
Aircraft involved
Probable cause & findings
The pilot's failure to maintain airspeed during the landing which resulted in an inadvertent stall.
Factual narrative
On April 4, 2004, approximately 1400 central daylight time, a PDPS PZL-Bielsko SZD-50-3 glider, N18SZ, was substantially damaged upon impact with terrain following a loss of control during a forced landing near the Lawrence Field Gliderport (4AR5), near Cherry Valley, Arkansas. The private pilot, who was the sole occupant, sustained serious injuries. The glider was registered to and operated by the Memphis Soaring Society, Inc., of Memphis, Tennessee. Visual meteorological conditions prevailed, and a flight plan was not filed for the 14 Code of Federal Regulations Part 91 personal flight. The local soaring flight departed the Lawrence Field Gliderport approximately 1330. According to the Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2), the pilot was towed by an airplane to approximately 3,000 feet above ground level (agl) and released. After attempting to soar and unable to find lift, the pilot returned to the gliderport. While on downwind to the gliderport, the pilot noticed another glider and tow airplane on the runway. The pilot elected to extend the downwind leg to allow the tow airplane and glider to depart the gliderport. After turning to final approach to runway 7, the glider encountered an unexpected headwind. During the final approach, the pilot noticed a row of trees in front of the glider that he thought he would not be able to clear. The pilot turned the glider to the right and initiated a landing to an adjacent field. During the attempted landing, "[The pilot] allowed the airspeed to get too slow. At an altitude of about 30 feet agl, the glider stalled, spun to the right, and crashed into the field..." Examination of glider by a Federal Aviation Administration inspector revealed the nose structure was destroyed, the left wing spar was fractured, and the empennage was buckled. At 1353, the Jonesboro Municipal Airport, Jonesboro, Arkansas, automated surface observing system, located approximately 25 miles north of the accident site, report the wind from 010 degrees at 5 knots, gusting to 17 knots, 10 statute miles visibility, temperature 61 degrees Fahrenheit, dew point 31 degrees Fahrenheit, and an altimeter setting of 30.16 inches of Mercury. During an attempted landing to a field, the glider stalled and impacted the terrain. While on downwind to the gliderport, the pilot noticed another glider and tow airplane on the runway. The pilot elected to extend the downwind leg to allow the tow airplane and glider to depart the gliderport. After turning to final approach to the runway, the glider encountered an unexpected headwind. During the final approach, the pilot noticed a row of trees in front of the glider that he thought he would not be able to clear. The pilot turned the glider to the right and initiated a landing to an adjacent field. During the attempted landing, "[The pilot] allowed the airspeed to get too slow. At an altitude of about 30 feet agl, the glider stalled, spun to the right, and crashed into the field..." Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2004_FTW04LA103.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, loss of control). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- 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…
- arXiv 2025 · arXiv preprint
Quadratic Programming Approach to Flight Envelope Protection Using Control Barrier Functions
Ensuring the safe operation of aerospace systems within their prescribed flight envelope is a fundamental requirement for modern flight control systems.
- 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.
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