CHI04CA189
2004-07-21 · Merrill, Wisconsin, United States · Minor · 1 aircraft · Status: Completed
Airport RRL
Current FAA registration · N45628
- Make / Model
- LUSCOMBE 8A
- Seats / Engines
- 2 seats · 1 engine
- Last airworthiness date
- 19561022
- ADS-B equipped
- Yes — Mode-S A58B25
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The dual student's failure to maintain directional control during the initial climb after takeoff and the flight instructor's delayed remedial action. A contributing factor was that all available runway was not used for takeoff due to the touch-and-go operation. An additional factor was the swamp terrain encountered.
Factual narrative
On July 21, 2004, approximately 1830 central daylight time, a Luscombe 8A, N45628, piloted by a flight instructor and dual student, sustained substantial damage during a in-flight collision with terrain after takeoff from runway 34 (2,997 feet by 75 feet, asphalt) at the Merrill Municipal Airport (RRL), Merrill, Wisconsin. The instructional flight was being conducted under 14 CFR Part 91 without a flight plan. Visual meteorological conditions prevailed at the time. The flight instructor and dual student reported no injuries. The local flight departed RRL about 1800 and was conducting touch-and-goes in the traffic pattern when the accident occurred. The flight instructor reported that they were practicing takeoffs and landings with a left crosswind of approximately 8 miles per hour. He stated that after completing the third landing, the student applied full power and lifted off with "near perfect" directional control. He noted that the aircraft subsequently yawed 30 to 40 degrees to the right at which point the student released the controls. The flight instructor stated that he immediately assumed the controls, verified full throttle and applied full left rudder. He noted that the aircraft settled into ground effect. He reportedly held the plane in ground effect in an attempt to gain airspeed, however, the aircraft subsequently settled in a swamp area beyond the end of the runway. The flight instructor and dual student reported no known malfunction of the aircraft or engine prior to the accident. At 1835, the RRL automated weather observing system recorded winds from 250 degrees at 5 knots, under clear skies. The single-engine tail-wheel equipped airplane was substantially damaged when it impacted terrain after takeoff. The flight instructor reported that he and a dual student were practicing takeoffs and landings with a left crosswind of approximately 8 miles per hour. During the fourth takeoff, the student lifted off with "near perfect" directional control, however, the aircraft subsequently yawed 30 to 40 degrees to the right at which time the student released the controls. The flight instructor stated that he immediately assumed the controls and applied full left rudder. He reported that the aircraft settled into ground effect. He held the plane in ground effect in an attempt to gain airspeed, however, the aircraft subsequently settled into a swamp area beyond the end of the runway. The flight instructor and dual student reported no known malfunction of the aircraft or engine prior to the accident. At 1835, the RRL automated weather observing system recorded winds from 250 degrees at 5 knots. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2004_CHI04CA189.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
Search this event elsewhere
External sources are reported, not agency: signal that something happened, not fact about what happened.
- TallyAero Live Wire Aviation press
- NTSB CAROL Agency ↗
- NTSB Docket Agency ↗
- Aviation Safety Network Aviation press ↗
- Kathryn's Report Aviation press ↗
- Aviation Herald Aviation press ↗
- AVweb Aviation press ↗
- Pilots of America Community ↗
- Reddit /r/flying Community ↗
- FlightAware Aviation press ↗
- AOPA accident database Aviation press ↗
- Google News News ↗
- DuckDuckGo News ↗
Related research
Matched on aircraft type or causal vocabulary (icing). All research papers
- Embry-Riddle Scholarly Commons 2020 · Conference paper Concurrent Sessions: Session 8A - Technology in Aviation
- arXiv 2026 · arXiv preprint Enabling Beyond-Visual-Line-of-Sight Drones Operation over Open RAN 5G Networks with Slicing
Among the foretold claims of the transition from 5G to 6G, Beyond-Visual-Line-of-Sight (BVLoS) drone operation has emerged as a prominent Internet-of-Robots enabler.
- 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…
- 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…
- 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…