NTSB CAROL · Event
Event DFW05CA120
Registry · N8023Y
FAA Aircraft Registry record.
Make / Model
MAYFIELD JAMES P SPARROWHAWK
Year of manufacture
2004 · 1 years old at event
Engine
SUBARU ALL MDLS A/B (400 hp)
Seats / Engines
2 seats · 1 engine
Last airworthiness date
20040904
ADS-B equipped
Yes — Mode-S AAEC23
Registrant of record
REEVE GILBERT
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot's failure to maintain control of the gyrocraft during takeoff. A contributing factor was the failure of the pre-rotator cable.
Factual narrative
On May 14, 2005, approximately 1400 central daylight time, a Mayfield Sparrowhawk single-engine gyrocraft, N8023Y, sustained substantial damage when it impacted the ground following a loss of control during takeoff from runway 08 at the Hondo Municipal Airport (HDO), near Hondo, Texas. The commercial pilot, sole occupant of the gyrocraft, was not injured. The gyrocraft was registered and operated by GBA Gyros of Phoenix, of Paradise Valley, Arizona. Visual meteorological conditions prevailed and a flight plan was not filed for the 14 Code of Federal Regulations Part 91 personal flight. The local flight was originating at the time of the accident. The 5,600-hour pilot reported in the Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2) that the accident flight was the first flight after he had adjusted the pre-rotator gear. During takeoff, the gyrocraft yawed to the right and the pilot attempted to land. As the gyrocraft landed, it rolled over onto its left side. Examination of the Subaru powered gyrocraft by an Federal Aviation Administration (FAA) inspector, who responded to the accident site, revealed that the tubular structure fuselage was bent and separated in various areas. The main rotor blade was also damaged. Examination of the pre-rotator cable revealed that a worn internal bolt appeared jammed in the engaged position. The 5,600-hour pilot lost control of the gyrocraft during takeoff and the gyrocraft rolled over onto its left side. The pilot stated that prior to the flight he had adjusted the pre-rotator gear. Examination of the gyrocraft revealed that a worn internal bolt within the pre-rotator cable appeared jammed in the engaged position. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2005_DFW05CA120.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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