NTSB CAROL · Event
Event CHI03LA037
Aircraft involved
Probable cause & findings
The pilot's failure to maintain adequate airspeed which resulted in an inadvertent stall.
Factual narrative
On December 12, 2002, at 1530 eastern daylight time, a Stinson 108-1, N8469K, piloted by a private pilot, was destroyed on impact with terrain approximately 1/2 mile southeast of Zehnder Field (66G), Frankenmuth, Michigan. Visual meteorological conditions prevailed at the time of the accident. The 14 CFR Part 91 personal flight was not operating on a flight plan. The pilot was fatally injured. The local flight originated from 66G about 1528. Witness reported that the airplane departed 66G and climbed to an altitude of about 200 feet above ground level, turned left toward a southeasterly heading for about 3/4 mile while maintaining level flight, and then entered a left bank turn and impacted a tree and terrain. The on-scene investigation was performed by inspectors from the Federal Aviation Administration's (FAA) Grand Rapids Flight Standards District Office. The airplane was resting inverted about 0.9 statute miles on a magnetic heading of 147 degrees from 66G. The fuselage was bent forward between the empennage and cabin. There was no lateral displacement of the empennage. The wings and stabilizers were attached to the fuselage. Ground scarring was limited the area beneath the airframe. Examination of the wreckage revealed that the throttle control was 3/4 travel forward position and the mixture control was at the forward stop. Flight control continuity was confirmed. The propeller was separated from the engine and exhibited circumferential scoring around the fracture surface. No anomalies were noted with the engine. An autopsy of the pilot was conducted by the Saginaw County Medical Examiner on December 13, 2002. The FAA's Final Forensic Toxicology Fatal Accident Report of the pilot reported the following: 0.058 (ug/ml, ug/g) diphenhydramine detected in blood diphenhydramine present in urine quinine detected in urine Diphenhydramine (commonly known by the trade name Benadryl) is an over-the-counter antihistamine with sedative affects, most commonly used to treat allergy symptoms, but also indicated for severe nausea and itching. It is present in many over-the-counter multi-symptom preparations. Quinine is found in tonic water, and is used to treat severe malaria. It is also commonly used to reduce the frequency of nocturnal leg cramps (a condition which may cause painful led muscle spasm at night), and is available as an over-the-counter nutritional supplement marketed for this purpose. The FAA does not regulate the use of any specific prescription or over-the-counter medications by pilots, though the Federal Aviation Regulations (FAR) do state that (Sec. 91.17): "No person may act or attempt to act as a crewmember of a civil aircraft ... While using any drug that affects the person's faculties in any way contrary to safety ...." FAA Aviation Medical Examiners are instructed to defer medical certification to the FAA Aeromedical Certification division for any airman undergoing continuous treatment with "sedating antihistaminic" medications, among others. The airplane impacted terrain about 2 minutes after takeoff from an airport located about 0.9 miles north of the accident site. Witnesses reported that the airplane entered a left bank turn at an altitude of about 200 feet above ground level before impacting terrain consistent with a low-speed nose-down impact. Examination of the airplane revealed no anomalies. The pilot's toxicology report, reported the presence of 0.058 (ug/ml, ug/g) diphenhydramine detected in blood and diphenhydramine present in urine. Diphenhydramine is an over-the-counter antihistamine with sedative affects, most commonly used to treat allergy symptoms, but also indicated for severe nausea and itching. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2002_CHI03LA037.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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