NTSB CAROL · Event
Event ANC20CA082
Registry · N1526A
FAA Aircraft Registry record.
Make / Model
PIPER PA-20
Year of manufacture
1951 · 69 years old at event
Engine
LYCOMING 0-290 SERIES (140 hp)
Seats / Engines
4 seats · 1 engine
Last airworthiness date
19550901
ADS-B equipped
Yes — Mode-S A0D4C8
Registrant of record
CROW ROBERT M
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot’s failure to maintain directional control during the landing roll, which resulted in a ground-loop.
Factual narrative
The commercial pilot reported that he was practicing landings in the tailwheel-equipped airplane to gain more experience in that model while flying in the right seat. He hired a flight instructor who was experienced in the model airplane to provide instruction from the left seat. During the pilot’s second flight in the airplane, while he was performing a 3-point landing, the airplane bounced slightly on the asphalt runway. After bouncing, the tailwheel shimmied, and the airplane immediately ground looped to the right and the left wing and horizontal stabilizer impacted the surface, which resulted in substantial damage. The flight instructor reported that the pilot was acting as pilot-in-command for the entire flight, and that she was not providing instruction, but rather allowing the pilot to gain flight time from the right seat. During the final approach, she observed that the airplane was about 5 knots fast before the 3-point landing. When the airplane touched down it bounced and then settled down while in a slight right yaw. The airplane immediately turned right upon touch down and the pilot at the controls attempted to correct with left brake, but the left wing impacted the runway. The pilot had a tailwheel endorsement, a flight instructor certificate and was current for flying as a pilot-in-command. He reported that he was obtaining right seat flight time so that he could instruct in the same model of airplane. The tailwheel was examined by a mechanic after the accident and determined to function properly. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).
- — Personnel issues-Experience/knowledge-Experience/qualifications-Total experience w/ equipment-Pilot
- — Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot
- — Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Not attained/maintained
- — Personnel issues-Action/decision-Action-Lack of action-Instructor/check pilot
Verbatim from NTSB's published report. Source file
NTSB_2020_ANC20CA082.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 ↗