NTSB CAROL · Event
Event FTW90DRA07
Aircraft involved
Probable cause & findings
THE PILOT'S LOSS OF CONTROL IN FLIGHT DUE TO EXCESSIVE CONTROL INPUTS AND HIS ABRUPT ATTEMPTS TO RECOVER CONTROL OF THE AIRCRAFT PRIOR TO IMPACT.
Factual narrative
SEVERAL WITNESSES, ALL OF WHICH WERE GYROCOPTER PILOTS, STATED THAT IT APPEARED THE PILOT ENTERED A PILOT INDUCED OSCILLATION (PIO) DURING THE INITIAL CLIMB AND THAT HE WAS UNABLE TO REGAIN CONTROL. A VIDEO TAPE OF THE ACCIDENT SHOWED THE AIRCRAFT ENTER A SERIES OF DIVERGENT NOSE UP AND NOSE DOWN MANEUVERS, THE FIRST OF WHICH WAS A NOSE PITCH UP. THE AIRCRAFT SUBSEQUENTLY ENTERED A STEEP DESCENT, WENT INVERTED, AND IMPACTED THE GROUND. NO EVIDENCE OF PRE-IMPACT FAILURE OR MALFUNCTION WAS FOUND. THE PILOT DID NOT HAVE A GYROCOPTER RATING AND HAD ACCUMULATED A TOTAL OF ABOUT 40 HOURS OF FLIGHT TIME IN THE MAKE AND MODEL AIRCRAFT. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1990_FTW90DRA07.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 (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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