NTSB CAROL · Event
Event ERA12CA168
Registry · N567HW
FAA Aircraft Registry record.
Make / Model
MAULE MX-7-180C
Seats / Engines
5 seats · 1 engine
ADS-B equipped
Yes — Mode-S A741AF
Registrant of record
BILLINGER WILLIAM C
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot did not maintain directional control during landing.
Factual narrative
According to the pilot, he had been practicing takeoffs and landings, in the tailwheel-equipped airplane. Upon landing the airplane touched down a little hard and veered to the left. He applied full right rudder and right brake and the airplane came to rest at the edge of the runway. During the accident sequence the airplane struck the right wing on the runway which resulted in substantial damage to a right wing rib and aileron. Examination of the airplane revealed no pre-accident mechanical malfunctions or failures that would have precluded normal operation. According to the pilot, he had been practicing takeoffs and landings in the tailwheel-equipped airplane. Upon landing, the airplane touched down a little hard and veered to the left. He applied full right rudder and right brake, and the airplane came to rest at the edge of the runway. During the accident sequence, the airplane’s right wing struck the runway, which resulted in substantial damage to a right wing rib and the right aileron. Examination of the airplane revealed no preaccident mechanical malfunctions or failures that would have precluded normal operation. 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).
- C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Not attained/maintained - C
- C Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
Verbatim from NTSB's published report. Source file
NTSB_2011_ERA12CA168.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 ↗