NTSB CAROL · Event
Event DEN01LA009
Registry · N41RC
FAA Aircraft Registry record.
Make / Model
AMERICAN AVIATION AA-1A
Engine
LYCOMING 0-235 SERIES (115 hp)
Seats / Engines
2 seats · 1 engine
Last airworthiness date
19710708
ADS-B equipped
Yes — Mode-S A4D341
Registrant of record
CURTIS CRAIG C
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
Carburetor ice formation due to the pilot's improper use of the carburetor heat control. Factors were the fence and fence post.
Factual narrative
On October 29, 2000, at approximately 1500 mountain standard time, a Grumman American AA-1A, N41RC, sustained substantial damage when it struck a fence during a forced landing in a field north of Greeley-Weld County Airport, Greeley, Colorado. The private pilot and his passenger were not injured. Visual meteorological conditions prevailed, and no flight plan had been filed for this local personal flight being conducted under Title 14 CFR Part 91. The flight originated from the Fort Collins/Loveland Airport approximately 1400. According to the pilot's accident report and information obtained from the airport manager, the pilot made a touch and go landing. During the climbout, the engine lost power. He turned left and "glided under minimal power" towards the airport. He "brushed the top of a fence post and clipped the upper barb[ed] wire strands," and landed on an access road. The engine regained power, and the pilot taxied back to the ramp. The airplane sustained damage to both ailerons and one aileron attachment point. The pilot had the airplane inspected by a mechanic and "carburetor ice was suspected as the cause." The pilot said he applied carburetor heat towards the end of the approach for the touch and go landing, and closed it prior to lifting off. According to the Greeley AWOS-3 observation taken at 1455 mst, the temperature and dew point were 19 degrees C. (66 degrees F.) and -4 degrees C. (25 degrees F.), respectively. According to the Carburetor Icing Graph, this temperature/dew point combination is on the outer fringes of SERIOUS ICING AFFECTS GLIDE OR CRUISE POWER arc. The pilot made a touch and go landing. During climbout, the engine lost power. During the forced landing approach to an airport access road, the airplane struck a fence post and barbed wire. The engine then regained power, and the pilot taxied back to the ramp. A mechanic said he suspected carburetor ice as the cause of the power loss. The pilot said he applied carburetor heat towards the end of the approach for the touch and go landing, and closed it prior to lifting off. The temperature and dew point were 19 degrees C. and -4 degrees C., respectively. According to the Carburetor Icing Graph, this temperature/dew point combination is on the outer fringes of SERIOUS ICING AFFECTS GLIDE OR CRUISE POWER arc. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2000_DEN01LA009.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 ↗