NTSB CAROL · Event
Event CHI92FA028
Aircraft involved
Probable cause & findings
THE PILOT'S SPATIAL DISORIENTATION, HIS LOSS OF AIRCRAFT CONTROL, AND HIS EXCEEDING THE AIRCRAFT'S DESIGN LIMITS. FACTORS IN THE ACCIDENT WERE THE PILOT'S DISREGARD FOR DIRECTIVES AND PROCEDURES, AND HIS CONTINUED FLIGHT INTO KNOWN ADVERSE WEATHER.
Factual narrative
A PRIVATE PILOT WITHOUT INSTRUMENT RATING OBTAINED A WEATHER BRIEF AND FILED IFR FOR A 4-HOUR NIGHT FLIGHT TO A REFUELING STOP. HIS DESTINATION WAS REPORTING IFR AND FORECASTING MARGINAL CONDITIONS ON ARRIVAL, WITH AN OUTLOOK FOR IFR. WEATHER REMAINED IFR THROUGH ARRIVAL, AND HE COMMENCED AN ILS APPROACH TO THE FIELD. WHILE ATTEMPTING TO INTERCEPT COURSE, THE PILOT INITIATED A RIGHT TURN WHICH CONTINUED AWAY FROM THE FIELD AND WAS ACCOMPANIED BY A RAPID DESCENT OUT OF RADAR CONTACT. THE AIRPLANE BROKE UP IN FLIGHT AS RESULT OF HIGH POSITIVE ACCELERATION. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1991_CHI92FA028.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 (spatial disorientation). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- Embry-Riddle Scholarly Commons 2025 · Journal article (IJAAA)
Design, Implementation, and Testing of Spatial Disorientation Scenarios in a Modified Hexapod Motion Simulator
Abstract Investigations into aviation accidents aim to identify root causes and enhance safety. Despite advancements in safety measures, technology, and education, general aviation accident rates rema…
- AOPA Air Safety Institute 2022 · Safety advisor
Safety Advisor: Spatial Disorientation
Safety advisor on the perceptual illusions that cause spatial disorientation: the leans, graveyard spiral, somatogravic and somatogyral illusions, false horizon, and Coriolis.
- NASA NTRS 2019 · Conference Paper
Evaluation of Low Cost, User-Centered Alerting Devices for the Mitigation of Flight Crew Spatial Disorientation
The National Aeronautics and Space Administration (NASA) is conducting research into technologies which have the potential to reduce flight crew Spatial Disorientation (SD).
- NASA NTRS 2019 · Presentation
Pre-Flight Training of Autonomic Responses for Mitigating the Effects of Spatial Disorientation During Spaceflight
The National Aeronautics and Space Administration (NASA) has identified a potential risk of spatial disorientation, motion sickness, and degraded performance to astronauts during re-entry and landing …
- NASA NTRS 2019 · Other
The Role of Spatial Disorientation in Fatal General Aviation Accidents
In-flight Spatial Disorientation (SD) in pilots is a serious threat to aviation safety. Indeed, SD may play a much larger role in aviation accidents than the approximate 6-8% reported by the National …
- NASA NTRS 2019 · Technical Memorandum (TM)
Autogenic-Feedback Training Exercise (AFTE) Mitigates the Effects of Spatial Disorientation to Simulated Orion Spacecraft Re-Entry: Individual Differences
NASA has identified a potential risk of spatial disorientation to future astronauts during re-entry of the proposed Orion spacecraft.
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