NTSB CAROL · Event
Event DCA22LA175
Aircraft involved
Probable cause & findings
The ground controller’s inappropriate routing of the B777 through a non-movement area, resulting in the airplane’s right wingtip contacting a light pole. Contributing to the accident was the lack of an appropriate display of taxiway BB2 as a restricted movement area on the ASDE-X and the flight crew’s acceptance of ATC instruction that was contrary to NOTAM information.
Factual narrative
Qatar Airways flight 8141 struck a light pole with its right wingtip while taxing to parking at Chicago O’Hare International Airport (KORD), Chicago, Illinois. The 2 pilots on board were uninjured, and the airplane was substantially damaged. The non-scheduled international cargo flight was operating under the provisions of 14 Code of Federal Regulations Part 129 from Hartsfield-Jackson International Airport (KATL), Atlanta, Georgia, to KORD. After landing runway 10C at KORD, the tower controller instructed the accident airplane to taxi off the runway via taxiway F followed by a left turn onto taxiway P, and to contact ground on 121.75. The ground controller verified the flight was cargo and instructed the aircraft to continue to taxiway CC and hold short of runway 10L. Shortly after the hold, they were cleared to cross runway 10L, instructed to hold short of taxiway K, and told to contact ground on 121.9. According to air traffic control (ATC) audio, the ground controller instructed the accident airplane to turn left on taxiway K and taxi via taxiway BB to taxiway BB2 to taxiway Z. While taxiing down taxiway BB2, the right wingtip contacted a light pole in the central deicing area adjacent to the taxiway. Figure 1. Airport diagram zoomed into the area of aircraft collision with light pole - with taxi route (green line) and accident location (yellow star) superimposed onto the airport map. The Qatar Airways crew had access to information on the taxi limitations on taxiway BB2. The FAA chart supplement valid for the time of the accident stated in the airport remarks on the 2nd page that taxiway BB2 was closed “to wingspan more than 118 ft.” Additionally, an airport notice to air mission (NOTAM), valid at the time of the accident, designated that taxiway AA between taxiway K and taxiway U as a non-movement area between June 5 and October 15, 2022. The crew reported reviewing NOTAMs prior to leaving their departure airport and the captain was referencing the airport diagram on his electronic flight bag during the taxi since this was his second time at the airport and the first time for the first officer. Taxiway BB2 was on the southern border of the central deicing facility for the airport. The area on taxiway BB2 where the accident occurred (between taxiway Z and taxiway AA) was considered a non-movement area as part of the central deicing facility and was not to be used to route taxiing aircraft. Facility SOPs noted that “all non-movement areas will be depicted on the ASDE-X as a restricted trait area (YELLOW BOX)” At the time of the accident, the ASDE-X depicted a yellow restricted trait area for the central deicing pad, however the restricted area on the display did not extend to taxiway BB2, despite the taxiway’s classification as a non-movement area. Figure 2: Screen capture zoomed into the area of impact at the time of event from the FAA legal recording playback of the ASDE-X display processor. The accident aircraft is shown as an orange airplane symbol, and the restricted trait area is shown within the hashed yellow box. (Source: FAA) 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-Task performance-(general)-(general)-ATC personnel
- — Personnel issues-Experience/knowledge-(general)-(general)-Flight crew
- — Organizational issues-Development-Design-Interface design-ATC
Verbatim from NTSB's published report. Source file
NTSB_2022_DCA22LA175.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 ↗