CHI04CA159
2004-06-19 · Lapeer, Michigan, United States · Serious · 1 aircraft · Status: Completed
Airport D95
Aircraft involved
Probable cause & findings
The pilot's loss of control due to an undetermined flight control system malfunction. Contributing factors to the accident were the wires and trees.
Factual narrative
On June 19, 2004, at 1230 eastern daylight time, an amateur-built Bracken CB540 (Berkut 540 variant), N5439N, built and operated by a private pilot, was destroyed during an in-flight collision with wires, trees and terrain following a loss of control during final approach to runway 36 (3,605 feet by 50 feet, asphalt), at the Dupont-Lapeer Airport (D95), near Lapeer, Michigan. Visual meteorological conditions prevailed at the time of the accident. The personal flight was operating under the provisions of 14 CFR Part 91 without a flight plan. The pilot was seriously injured. The flight departed Detroit City Airport (DET) at an unconfirmed time. The pilot reported that the airplane had a "strong desire to turn left" during the flight to D95. The pilot stated he monitored the common traffic advisory frequency (CTAF) for D95 and he "lost control short of landing." A Federal Aviation Administration (FAA) inspector performed an on-site examination of the airplane. The inspector stated that the airplane impacted wires prior to colliding with trees and terrain. The inspector reported that flight control continuity could not be established due to the extent of damage incurred during the impact. The forward portion of the fuselage, including the canard, elevators and flight control mixing-unit, was extensively damaged. The source of the flight control malfunction could not be determined. The airplane impacted wires and trees during final approach. The pilot reported that the airplane had a "strong desire to turn left" during the accident flight. The pilot stated he "lost control short of landing." Flight control continuity could not be established due to the extent of damage incurred during the impact. The forward portion of the fuselage, including the canard, elevators and flight control mixing-unit, was extensively damaged. The source of the flight control malfunction could not be determined. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2004_CHI04CA159.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.