NTSB CAROL · Event
Event CHI01LA325
Registry · N46R
FAA Aircraft Registry record.
Make / Model
DASSAULT FALCON 900 EX
Year of manufacture
2014
Engine
HONEYWELL TFE731-60-1C
Seats / Engines
21 seats · 3 engines
Last airworthiness date
20150122
ADS-B equipped
Yes — Mode-S A598B9
Registrant of record
BACI LLC
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
Aircraft control not maintained by the pilot.
Factual narrative
On September 27, 2001, at 0815 eastern daylight time, a Bell 47G-2, N46R, piloted by a private pilot, was substantially damaged on impact with terrain during a practice hover near Grand Haven, Michigan. Visual meteorological conditions prevailed at the time of the accident. The 14 CFR Part 91 personal flight was not operating on a flight plan. The pilot received minor injuries. The local flight originated at 0745. The pilot reported the following in a written statement, "I finished a traffic pattern, which went smoothly. I was using the runway designated 03-27. I had been practicing hover maneuvers and traffic patterns for [approximately] 35 [minutes] prior to the accident. I came to a hover at [approximately] 3-5 [feet] AGL and applied left cyclic to exit the runway onto the grassy area on the [southwest] region of the airport. The time was [approximately] 0800. The wind was variable at 5-7 [knots] and no gusts. The wind direction was out of the north and east. As I applied cyclic, I also applied slight left pedal to place the tail into the wind. The aircraft was moving slowly and level, still maintaining an altitude of 3-5 [feet] AGL. Approximately 75-100 feet to the south of runway 03-27, I slowed the aircraft more and applied right pedal and right cyclic to bring the aircraft around and into the wind. I did not notice a decay of engine/rotor RPM and the sound of the engine was normal. At [approximately] 1/4 of the way into the right pedal turn, facing west, I felt an exaggerated swing of the tail to the right. This was precipitated by a slight shudder. I immediately applied left pedal and increased the throttle for fear that I had inadvertently allowed the engine RPM to decay. This was to no avail though, as the aircraft continued to swing to the right and increase in velocity. I then heard the engine over-rev. I immediately rolled the throttle off. The aircraft, which made [approximately] 1 and 1/2 turns to the right, stopped spinning and began to drift backward and roll to the left. I made an attempt to level the skids with the ground applying forward right cyclic. It was too late, though, and the tail rotor struck the ground, followed by the left skid which immediately folded under the aircraft causing a dynamic roll to the left. This caused the main rotor to strike the ground. There was tremendous shaking and the fiberglass canopy shattered. The aircraft settled with a list to the left and the main rotor blades, still attached, perpendicular to the fuselage. I then heard the engine revving and quickly turned the magnetos to the 'off' position. The engine immediately stopped. I did not smell fuel or oil and there was no fire." Inspection of the wreckage by the Federal Aviation Administration revealed no mechanical anomalies. The helicopter impacted terrain while maneuvering in a 3-5 foot agl hover to a grass area on the airport. The helicopter's tail swung to the right during a pedal turn, which was arrested after 1 1/2 turns and then followed by a drift backwards and a roll to the left. The tail rotor struck the ground followed by the left skid struck the ground and a roll over then ensued. Inspection of the helicopter revealed no anomalies. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2001_CHI01LA325.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 (icing). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- NASA NTRS 2026 · Contractor Report (CR)
Icing Physics Studies Using the 3D SIDRM Test Article: 2023 Icing Tests Analysis
In-flight icing is an important safety issue and is a factor that affects aircraft design and performance. Newer regulations are driving a need for improvements in airframe and engine icing simulation…
- arXiv 2025 · arXiv preprint
Multi-Agent Deep Reinforcement Learning for UAV-Assisted 5G Network Slicing: A Comparative Study of MAPPO, MADDPG, and MADQN
The growing demand for robust, scalable wireless networks in the 5G-and-beyond era has led to the deployment of Unmanned Aerial Vehicles (UAVs) as mobile base stations to enhance coverage in dense urb…
- Embry-Riddle Scholarly Commons 2025 · Journal article (JAAER)
A Mathematical Model on the Temporal Dynamics of Aviation Competitive Pricing
This study investigates the competitive dynamics of airport pricing using U.S. airport data to validate the findings. It employs linear and nonlinear ordinary differential equation models to analyze t…
- NASA NTRS 2025 · Presentation
NASA Icing Update – March 2025
This NASA Icing Update was prepared for presentation to the SAE International AC-9C Inflight Icing Technology Committee. This update includes the following topics: planned Rotational Icing Scaling tes…
- arXiv 2024 · arXiv preprint
An energy-stable phase-field model for droplet icing simulations
A phase-field model for three-phase flows is established by combining the Navier-Stokes (NS) and the energy equations, with the Allen-Cahn (AC) and Cahn-Hilliard (CH) equations and is demonstrated ana…
- NASA NTRS 2024 · Presentation
NASA Icing Update – Oct 2024
This presentation provides a status update on select NASA icing research activities for the SAE AC-9C Icing Technical Committee Meeting on Oct 21, 2024.
Browse the full corpus — academia portal ↗