MIA90FA102
1990-04-07 · OKEECHOBEE, Florida, United States · Fatal · 1 aircraft · Status: Completed
Airport OBE
Aircraft involved
Probable cause & findings
PILOT'S DECISION TO ATTEMPT TO FLY THE GYROCOPTER WITHOUT PROPER TRAINING RESULTING IN THE INFLIGHT LOSS OF CONTROL AND SUBSEQUENT CRASH.
Factual narrative
PLT HAD RECEIVED ONLY APROX. 1 HOUR TOTAL GYROCOPTER FLIGHT TIME AND APPROX. 15 MINUTES OF DUAL INSTRUCTION AND HAD NOT BEEN SIGNED OFF FOR SOLO FLIGHT. PLT HAD EXPIRED MEDICAL CERTIFICATE AND NO RECORD OF HAVING RECEIVED A BIENNIAL FLIGHT REVIEW. GYROCOPTER HAD NO RECORD OF HAVING CURRENT INSPECTION. PLT INADVERTENTLY LET GYROCOPTER PORPOISE RESULTING IN MAIN ROTOR RPM SLOWING AND MAIN ROTOR BLADE CONTACTING ROTOR HEAD AND PROPELLER. ALL CONTROL WAS LOST AND GYROCOPTER DESCENDED OUT OF CONTROL COLLIDING WITH THE GROUND. NO POST CRASH EVIDENCE OF FAILURE OF THE STRUCTURE, FLIGHT CONTROLS, OR ENGINE. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1990_MIA90FA102.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
Matched on aircraft type or causal vocabulary (loss of control). All research papers
- 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.
- Semantic Scholar 2024 · Article (International Conference on Networking and Services) Risk Assessment of Loss of Control In-Flight Trajectories for Urban Air Mobility Safety
In Urban Air Mobility (UAM), maintaining a minimum separation between aircraft is a safety requirement, which becomes challenging amidst congested air traffic and off-nominal conditions, such as Loss …
- 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.