The FAA ordered a nationwide ground stop of departing flights on Friday afternoon, 13 November, “due to extraordinary circumstances and for reasons of safety”. In a statement quoted by Axios, the agency said the stop followed “communication issues impacting multiple Air Route Traffic Control Centers”.
Homeland Security Secretary Markwayne Mullin said there was no indication yet of a “nefarious attack”. Mullin said investigators will look at whether there is any link to the FAA’s nationwide rollout of a new artificial intelligence system, KCRA reported. The FAA said on 10 November, three days earlier by our arithmetic, that the system, called SMART, would now be used in the airspace of all 22 centers.
Business Pill · Embedded Dependency
A short explainer on embedded dependency: what sits inside the systems you buy. It teaches the general idea only and does not discuss the FAA or the ground stop.
The key insight: As we read it, the timing puts the FAA’s newest AI system on the checklist: SMART went to all 22 en route centers three days before a communication issue that Duffy said affected all of them. No official has said SMART played any part.
The air traffic control advisory read: “All departing traffic should remain ground stopped until further notice”. It added: “Inbound international flights will be managed on a case by case basis”. Transportation Secretary Sean Duffy said in a social media post that the stop came “following a communication issue impacting all Air Route Traffic Control Centers”, CNN reported, and that “FAA technicians are investigating the issue”.
Mullin spoke to reporters at the White House on Friday evening, Axios reported. ABC News quoted him: “It’s just a telecommunications outage as of now”, and “This isn’t another 9/11. I cannot repeat that enough”. NBC News reported that he said President Donald Trump had been briefed and that officials “are not ruling out anything at this point” about the cause.
On this week’s Microsoft outage, which we covered in Microsoft 365 Outage Hits 74 Countries, Ticker News reports that Mullin, asked about it, said he saw no reason to connect the two and called them separate issues. We could not check his exact words against video or a transcript of the briefing, so we do not quote him on this point.
Maximum departure delays at the six US airports the FAA status feed listed with national-stop or equipment reasons, snapshot 22:32 UTC, 13 November 2026. Data: FAA NAS status feed.
The AI Tool Officials Will Look At
The FAA’s 10 November statement says the Strategic Management of Airspace, Routes and Trajectories (SMART) system “is expanding across the nation”. It describes SMART as “a cloud-based system that centralizes 200 data streams”, including weather patterns, flight paths, traffic flow and controller staffing metrics.
The statement says FAA specialists in Washington, D.C., validate SMART data and send scheduling recommendations to the Command Center in Warrenton, Virginia, which routes them to air traffic control facilities “for local leadership to consider”. KCRA reported that the system “operates out of one location near Washington, D.C., and just sends recommendations to the air traffic control centers”.
We read the FAA airport status feed at 22:32 UTC, 91 minutes after CNBC’s first report at 21:01 UTC, by our arithmetic. It listed departure delays at six US airports with national-stop or equipment reasons. Chicago O’Hare showed up to 2 hours 30 minutes (EQ:FAA); Atlanta and Teterboro at up to 2 hours 15 minutes, Newark and Houston Intercontinental at up to 2 hours, and New York JFK at up to 1 hour 44 minutes.
At that moment the feed’s ground-stop list showed only Montreal and Toronto. Local reports were still describing the national stop as continuing at 22:08 UTC. Airline shares fell after the 4 p.m. ET close: Delta was down 2.1%, American and Southwest 1.8% and United 1.6% by about 22:35 UTC, by our arithmetic from Yahoo Finance prices.
The Structural Read
As we read the FAA’s own description, SMART is an advisory layer: specialists in Washington validate its output and send scheduling recommendations that local leadership can consider, and KCRA reported that it runs from one location near Washington.
As we read the market side, the stop began late on a Friday afternoon and four airline stocks fell 1.6% to 2.1% after the close, by our arithmetic, before any official had named a cause beyond a communications problem.
FAA statement, 10 November 2026
“After a successful initial rollout to the National Capital Region in September, the FAA will now use SMART in the airspace of all 22 centers across the country to reduce delays, reduce fuel consumption and improve the travel experience for the flying public.”
Three Implications
FOR AIRLINES Delta, American, Southwest and United shares fell 1.6% to 2.1% after the close, by our arithmetic; Axios wrote that the effects could easily spill over into the weekend.
FOR AI VENDORS IN CRITICAL INFRASTRUCTURE Mullin said a possible link to SMART will be looked at. We reported in September that the FAA picked Air Space Intelligence for SMART under an $875 million, 12-year contract.
FOR OUR COVERAGE We will add an update when the FAA or DHS names a cause or lifts the stop.
The framework says: “The product is the interconnection.”
As we read it, SMART is that kind of product: the FAA describes one platform that centralizes 200 data streams for all 22 centers. The framework predates this stop and does not discuss the FAA.
Decline from the 4 p.m. ET close to the latest after-hours trade at about 22:35 UTC, 13 November 2026. Source: Yahoo Finance chart data. Percent changes are FourWeekMBA’s arithmetic; after-hours trading is thin.
What Is Not Established
No official has named a cause beyond a communications or telecommunications problem. Mullin said the link to the AI system will be looked at; Axios reported that it is unclear if SMART has any connection to Friday’s communication issues. KCRA reported that there is no timeline for restarting flights.
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The FAA stopped departures nationwide on 13 November after communication problems at its en route centers, and Mullin called it a telecommunications outage with no sign yet of an attack. Mullin said any link to SMART, the AI system the FAA extended to all 22 centers three days earlier, will be looked at; no link has been shown.
A note on sourcing. This is a breaking story. Officials’ words are as quoted by Axios, ABC News, NBC News, KCRA, CNN and Ticker News; the SMART description is the FAA’s own 10 November statement. Airport delays are from our snapshot of the FAA status feed at 22:32 UTC, share prices from Yahoo Finance at about 22:35 UTC. Day and minute counts and percent changes are our arithmetic. We did not contact the FAA, DHS or ASI.
Gennaro Cuofano is a CRO and tech executive who has worked in AI since late 2015, starting with bringing NLP, natural-language generation, voice and chatbot products to the marketing industry. His background is in law and finance: he holds a Master's degree in Law and an International MBA with an emphasis on corporate finance (LUISS Business School and the University of San Diego, 2012), and worked as a financial analyst at a real-estate investment firm in San Diego and as an assistant controller. His work focuses on business model strategy, business engineering and, more broadly, structural analysis: how companies make money, read from their own filings. He created FourWeekMBA and leads research there and at The Business Engineer, his newsletter on AI and business strategy, with over 95,000 subscribers and more than 1,000 published analyses. His writing has also appeared on Entrepreneur (for example, How to Digitize a Family Business in Europe) and HackerNoon. Find him on LinkedIn and Substack. See how we source.
