NTSB CAROL · Event
Event CHI98LA143
Aircraft involved
Probable cause & findings
the failure of the pilot to maintain airplane control due to alcohol impairment.
Factual narrative
On May 10, 1998, at 1430 central daylight time (cdt), an Alon A-2, N5482E, piloted by a private pilot, was destroyed during a collision with the ground and post-impact fire. The 14 CFR Part 91 personal flight was not operating on a flight plan. Visual meteorological conditions prevailed at the time of the accident. The pilot and passenger were fatally injured. The flight departed Columbia, Illinois, at 1410 cdt. The Jefferson County Missouri, Sheriff's Department deputy conducted interviews with witnesses who observed the airplane's maneuvering, descent, and ground collision. According to the deputy's report, the pilot's son said his father circled his home three times. He said that when the third circle was in process, the engine began to "...cut out and miss." According to the report, the pilot's son said his father was having trouble keeping the airplane in the air. The son said his father's airplane passed over his home, turned sideways, struck trees near his home and crashed onto the ground. One witness said, "The plane appeared to be having trouble climbing in the air." As the airplane passed over the son's home, the witness said it "...banked turning sideways." According to the witness, the airplane was losing altitude as it circled the home for the last time. Another witness said N5482E "...circled the property several times, each time it got lower. On the last pass it hit the tops of my trees then crashed." A third witness said the airplane was "...flying under 1,000 feet, flying at a slow rate of speed, making [an] approximate 30- degree turn. The engine was running when the right wing stalled, turning the plane upside down. The plane then nose dived to the ground." The last witness statment said the airplane was "...circling about 700 to 800 feet above when in a banking turn he seemed to lose it. The plane kind of did a nose dive." The Federal Aviation Administration Principal Maintenance Inspector examined N5482E's wreckage. He stated there were no mechanical anomalies with the engine, airframe, or flight control system that would have prevented normal flight. The Federal Aviation Administration's Civil Aeromedical institute conducted a toxicological examination on the pilot. According to their report there was no carbonmonixde, drugs, or cyanide in the toxicologicl samples examined. The report stated there was 112 (mg/dL), mg/hg) ETHANOL detected in the urine, 84 (mg/dL, mg/hg) ETHANOL was detected in the vitreous fluids, 37 (mg/dL, mg/hg) ETHANOL was detected in the blood sample, 5 and 43 (mg/dL, mg/hg) ACETALDEHYDE was detected in the urine and blood respectively. The pilot's autopsy was conducted by Dr. Mary Case, Chief Medical Examinaer, Jefferson County, Missouri. Witnesses reported the airplane was circling a home at an altitude between 700 and 1,000 feet above the ground. One witness said the airplane was losing altitude while it was maneuvering. Another witness said the airplane was '...flying at a slow rate of speed, making [an] approximate 30-degree turn. The engine was running when the right wing stalled, turning the airplane upside down. The plane then nose dived to the ground.' The toxicological report reported 112 (mg/dL, mg/hg) of Ethanol was detected in the pilot's urine sample. The report stated that 84 (mg/dL, mg/hg) of ethanol was detected in the vitreous fluids examined. No mechanical anomalies were found with the engine, airframe or control system that would prevent normal flight. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1998_CHI98LA143.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Academic papers and agency reports matching this event's aircraft type or causal vocabulary (stall, maintenance). 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 2019 · Other - NACA Research Memorandum
Ditching Tests with a 1/12-Scale Model of the Army A-26 Airplane in Langley Tank No. 2 and on an Outdoor Catapult
Tests were conducted in calm water in Langley tank no. 2 and in calm and rough water at an outdoor catapult in order to determine the best way to make a forced landing of an Army A-26 airplane and to …
- Embry-Riddle Scholarly Commons 2023 · Conference paper
The Value of Strong Partnerships to Build a Successful Aviation Maintenance Career Pathway Program for Transitioning Military Service Members
The aerospace industry is competing with other industries for a qualified workforce, and many of those competing industries are investing heavily in creating workforce development pipelines.
- Embry-Riddle Scholarly Commons 2026 · Journal article (IJAAA)
From Reactive to Predictive: A hybrid Trust-Mediated Adoption Framework for Data-Driven Maintenance in Distributed-Authority Aviation Environments
Modern aviation maintenance operates within increasingly data-intensive technological environments, yet the operational integration of predictive maintenance into routine decision-making remains incon…
- 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 …
- Semantic Scholar 2025 · Article (Applied Sciences)
Decision-Making Framework for Aviation Safety in Predictive Maintenance Strategies
The implementation of predictive maintenance (PM) in aviation presents unique challenges due to strict safety requirements, complex operational environments, and regulatory constraints.
- Embry-Riddle Scholarly Commons 2024 · Journal article (JAAER)
Low-Resource Automatic Speech Recognition Domain Adaptation – A Case-Study in Aviation Maintenance
With timeliness and efficiency being critical in the aviation maintenance industry, the need has been growing for smart technological solutions that optimize and streamline the different underlying ta…
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