NTSB CAROL · Event
Event LAX93LA324
Aircraft involved
Probable cause & findings
the pilot's failure to maintain an adequate airspeed margin while maneuvering to land, resulting in an inadvertent stall/spin.
Factual narrative
On August 15, 1993, at 1535 hours mountain standard time, a Schweizer 1-35C glider, N2562H, collided with the ground during an off airport forced landing in the desert near Wickenburg, Arizona. The glider, owned and operated by the pilot, was participating in an 80 mile round trip endurance competition at the time. Visual meteorological conditions prevailed and no flight plan was filed for the operation. The glider was destroyed in the ground collision sequence. The certificated commercial pilot, the sole occupant, sustained serious injuries. The flight originated at the Turf Soaring Gliderport in Paradise Valley, Arizona, on the day of the mishap at 1300 hours. According to an FAA inspector from the Scottsdale, Arizona, Flight Standards District Office, several gliders were participating in the competition and the pilots reported that soaring conditions were not very favorable, with little lift available. Many of the pilots reported turning back early and landing at the gliderport, while others stated that they were forced to make off airport landings in the desert. In his statement, the pilot noted that a good altitude margin was maintained during the flight outbound toward the goal until reaching an area about 12 miles west of Wickenburg. The pilot reported that he began to experience heavy sink and he decided to turn around and head for the Wickenburg airport. The pilot stated that his altitude continued to deteriorate to the point where the airport at Wickenburg was no longer reachable and an off airport landing in the desert was the only option. The pilot said he found a suitable landing area but had to maneuver on final approach to avoid a set of power lines. The pilot said that during the maneuver the glider stalled, entered a spin to the right and impacted nose first. Several gliders were participating in an 80 mile round trip endurance competition and many of the pilots reported turning back early and landing at the gliderport, while others stated that they were forced to make off airport landings in the desert due to unfavorable conditions. The pilot noted that a good altitude margin was maintained during the flight outbound toward the goal until reaching an area about 12 miles west of Wickenburg. The pilot began to experience heavy sink and he decided to turn around and head for the Wickenburg airport. The pilot stated that his altitude continued to deteriorate to the point where the airport at Wickenburg was no longer reachable and an off airport landing in the desert was the only option. The pilot said he found a suitable landing area but had to maneuver on final approach to avoid a set of power lines. The pilot said that during the maneuver the glider stalled, entered a spin to the right and impacted nose first. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1993_LAX93LA324.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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