NTSB CAROL · Event
Event ERA13CA122
Registry · N393GX
FAA Aircraft Registry record.
Make / Model
AMIRKHANIAN SHAHRAM CHARL COMMANDER
Year of manufacture
2010 · 3 years old at event
Engine
ROTAX 503ULDCDI (52 hp)
Seats / Engines
1 seats · 1 engine
Last airworthiness date
20100805
ADS-B equipped
Yes — Mode-S A48E9A
Registrant of record
AMIRKHANIAN SHAHRAM C
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
Impact with power lines due to the pilot’s obscured vision due to the low angle of the sun, which prevented the pilot from seeing the lines.
Factual narrative
According to the pilot of the gyrocopter, he was practicing aborted takeoffs with 180-degree turns to a simulated runway in a field that had power lines in the vicinity of the practice area. He successfully completed one simulated aborted takeoff and turned back toward the simulated runway. During the second practice maneuver, he took off to the north, and began the 180-degree turn to the south. The pilot stated the sun obscured his vision for several seconds, the gyrocopter struck a powerline, and he pushed the cyclic forward in order to land in the field. Then, the gyrocopter impacted the ground hard, which resulted in substantial damage to the airframe. The pilot reported no preimpact mechanical malfunctions or failures with the gyrocopter that would have precluded normal operation. According to the pilot of the gyroplane, he was practicing aborted takeoffs from a field that had power lines near the practice area and performing 180-degree turns to simulate a return to the runway. He successfully completed one practice maneuver, taking off to the south and making a 180-degree turn to the north. During the second practice maneuver, he took off to the north and began a 180-degree turn to the south. The pilot stated that, immediately after making the turn, the sun obscured his vision for several seconds. The gyroplane then struck a power line, and the pilot pushed the cyclic forward to land in the field. Subsequently, the gyroplane impacted the ground hard, which resulted in substantial damage to the airframe. At the time of the accident, the angle of the sun was low and directly in the flightpath during the turn. The pilot reported no preimpact mechanical malfunctions or failures with the gyroplane 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 Environmental issues-Conditions/weather/phenomena-Light condition-Bright light-Contributed to outcome - C
- C Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
- C Environmental issues-Physical environment-Object/animal/substance-Wire-Contributed to outcome - C
Verbatim from NTSB's published report. Source file
NTSB_2013_ERA13CA122.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 ↗