NTSB CAROL · Event
Event MIA91FA085
Aircraft involved
Probable cause & findings
THE PILOT-IN-COMMAND'S IN FLIGHT LOSS OF CONTROL DUE TO INCAPACITATION RESULTING FROM UNDERLYING SEVERE HEART DISEASE. CONTRIBUTING TO THE ACCIDENT WAS THE PILOT-IN-COMMAND'S NOT REPORTING THE HISTORY OF HYPERTENSION AND HEART PROBLEMS DURING HIS FAA MEDICAL EXAMINATION.
Factual narrative
DURING CROSSWIND TURN AFTER TAKEOFF A RADIO CALL WAS RECEIVED FROM THE PILOT IN WHICH THE PILOT IN A STRAINED VOICE CALLED PART OF THE REG. NUMBER AND THEN CEASED TRANSMITTING ABRUPTLY. WITNESSES SAW RUDDER GO FULL LEFT AT THIS TIME AND ENG. INCREASE AND DECREASE IN POWER. ACFT THEN ENTERED DESCENDING LEFT TURN WITH ACFT PITCH 45 DEGREES NOSE LOW. WINGS AND PITCH LEVELED AND ENGINE POWER INCREASED AS ACFT IMPACTED GROUND FLAT. POST CRASH EXAM. OF ACFT REVEALED NO EVIDENCE OF FAILURE IN STRUCTURE, FLT. CONTROLS, AND ENG. POST MORTEM EXAM REVEALED PLT HAD SEVERE HEART DISEASE AND THE MEDICAL EXAMINER STATED PLT MOST LIKELY SUFFERED VENTRICULAR FIBRILLATION WHICH WOULD ALLOW ONLY 10 SECONDS OF CONSCIOUSNESS AFTER ATTACK. PLT HAD BEEN TREATED FOR HYPERTENSION AND ANGINA FOR SEVERAL YEARS AND DID NOT DECLARE THIS ON FAA MEDICAL APPLICATION. POST MORTEM TOX. TESTING INDICATED PLT WAS NOT TAKING HYPERTENSION MEDICATION PRESCRIBED BY DOCTOR. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1991_MIA91FA085.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
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Academic papers and agency reports matching this event's aircraft type or causal vocabulary (loss of control). 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 (JAAER)
A Scoping Review of Aviation Loss of Control Inflight Research
Loss of control – inflight (LOC-I) contributes to aircraft accidents at unacceptably high rates. Significant industry efforts and research have aimed to improve LOC-I prevention, detection, and recove…
- SKYbrary (Eurocontrol) 2024 · SKYbrary article
Loss of Control In-Flight (LOC-I) — SKYbrary Knowledge Base
SKYbrary comprehensive knowledge-base entry on Loss of Control In-Flight — definitions, contributing factors, accident case studies (Air France 447, Colgan 3407), and prevention strategies.
- NTSB Aircraft Accident Reports 2022 · Accident report
Loss of Control on Takeoff in Icing Conditions — Citation 560XL
Cessna Citation 560XL fatal takeoff icing accident, March 2018. Investigation of a Citation 560XL loss-of-control takeoff accident in icing conditions.
- Semantic Scholar 2021 · Article (Aviation)
ANALYSIS OF GENERAL AVIATION FIXED-WING AIRCRAFT ACCIDENTS INVOLVING INFLIGHT LOSS OF CONTROL USING A STATE-BASED APPROACH
Inflight loss of control (LOC-I) is a significant cause of General Aviation (GA) fixed-wing aircraft accidents. The United States National Transportation Safety Board’s database provides a rich source…
- NASA NTRS 2021 · Presentation
Use of Design of Experiments in Determining Neural Network Architectures for Loss of Control Detection
Abstract—We describe empirical methods for selecting a neural network architecture to implement belief state inference on generic commercial transport aircraft.
- NASA NTRS 2021 · Conference Paper
Use of Design of Experiments in Determining Neural Network Architectures for Loss of Control Detection
We describe empirical methods for selecting a neural network architecture to implement belief state inference on generic commercial transport aircraft.
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