NTSB CAROL · Event
Event SEA06CA113
Registry · N7494K
FAA Aircraft Registry record.
Make / Model
PIPER PA-20
Year of manufacture
1950 · 56 years old at event
Engine
LYCOMING 0-290 SERIES (140 hp)
Seats / Engines
4 seats · 1 engine
Last airworthiness date
19551119
ADS-B equipped
Yes — Mode-S AA16E7
Registrant of record
WEAVER MARVIN THOMAS
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
An improper flare and the pilot's failure to maintain directional control during the landing which resulted in the aircraft nosing over. Delayed remedial action was a factor.
Factual narrative
The student pilot was practicing three-point landings when the tailwheel equipped airplane began to bounce and drift to the left. The pilot said that he initially thought about going around, but hesitated as the airplane continued to bounce and drift left. The pilot stated that he then decided to go around, adding full power and raising the flaps. He related that after he added full power the airplane continued to bounce and porpoise while drifting further to the left, which prompted him to abort the go-around. He said he then made a right rudder and right brake input, "...then I panicked and hit both brakes. The airplane nosed over and came to rest upside down [off the side of the runway]. I should have gone around sooner rather than thinking about it." The student pilot was practicing three-point landings when the airplane began to bounce and drift to the left. The pilot said that he initially thought about going around, but hesitated as the airplane continued to bounce and drift left. The pilot stated that he then decided to go around, adding full power and raising the flaps. He related that after he added full power the airplane continued to bounce and porpoise while drifting further to the left, which prompted him to abort the go-around. He said he then made a right rudder and right brake input, "...then I panicked and hit both brakes. The airplane nosed over and came to rest upside down [off the side of the runway]. I should have gone around sooner rather than thinking about it." Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2006_SEA06CA113.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, go-around). 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 · Conference Paper
A Training Study to Improve Monitoring During A Go-Around
As part of an FAA program to improve go-around (GA) safety, we were asked to determine if we could improve the performance of the Pilot Monitoring (PM) during a GA maneuver.
- 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…
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