NTSB CAROL · Event
Event LAX90LA324
Aircraft involved
Probable cause & findings
IMPROPER HANDLING OF THE AIRCRAFT BY THE STUDENT PILOT, WHICH RESULTED IN HIS FAILURE TO ATTAIN SUFFICIENT AIRSPEED TO CLIMB AFTER TAKEOFF, AND THE INSTRUCTOR'S (CFI'S) INADEQUATE SUPERVISION.
Factual narrative
DURING A TRAINING FLT, THE INSTRUCTOR (CFI) & STUDENT LANDED THE ACFT ON A ROUGH DIRT/GRASS STRIP THAT WAS 2200' LONG. THE CFI REPORTED THAT AS THE STUDENT WAS MAKING A ROUGH FIELD TAKEOFF FROM THE STRIP, THE ACFT BECAME AIRBORNE 'JUST BEFORE THE MIDDLE POINT OF THE RUNWAY' & 'AT THIS POINT, THE STALL WARNING BEGAN TO SOUND.' THE CFI SAID HE PUSHED THE YOKE FORWARD IN HOPES OF 'COAXING' SOME ACCELERATION, BUT THE ACFT'S SPEED REMAINED AT ABOUT 55 KTS & THE ACFT WOULD NOT ACCELERATE OR CLIMB. ACCORDING TO THE CFI, THE ACFT REMAINED ABOUT 10' ABOVE THE SURFACE & FELT OVERWEIGHT, UNDERPOWERED & SLUGGISH. THERE WAS INSUFFICIENT RWY REMAINING TO ABORT & THE CFI HOPED TO GET THE ACFT TO ACCELERATE, WHILE DSCNDG OVER A BLUFF BEYOND THE END OF THE RWY. HOWEVER, THE ACFT HIT A BUSH OR LOW TREE, THEN IT ROTATE ABOUT THE VERTICAL AXIS & CRASHED. THE CFI RPRTD THAT THE STALL WARNING CONTINUED TO SOUND UNTIL THE ACFT 'STARTED SLIDING DOWN THE BLUFF.' NO PREIMPACT MECHANICAL PROBLEM WAS FOUND. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1990_LAX90LA324.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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