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IrelandFAA maintenance spiraled into network disruption, Duffy tells briefing
CTV News's briefing clip explains how connection attempts spread the problem, while investigators weigh installation error against faulty equipment.
CTV News
Story of Why this story? The video opened at a pace of 937,288 views a day, 782 times a normal first day on this channel (1,198).
‘Contractor error’ or ‘faulty’ router to blame for FAA ground stop: Duffy
Next story: Canada advises luggage photos amid bag-tag switching investigation
Things we can learn from the video
Press to jump
- 0:43Duffy says flight operations have resumed after the nationwide ground stop.
- 1:30He places the disruption during work replacing copper lines with fiber at a remote FAA facility.
- 1:43Duffy identifies L3Harris as the contractor carrying out the maintenance.
- 2:51Investigators are weighing human error against a faulty router as the cause.
- 3:18Repeated connection attempts flooded other routers, affecting communications and radar feeds and triggering the safety ground stop.
A maintenance job at a remote FAA facility had consequences far beyond that site, according to U.S. Transportation Secretary Sean Duffy's account of the nationwide flight shutdown.
In the briefing carried by CTV News, Duffy says work to replace copper telecommunications lines with fiber went wrong. A network issue then flooded other routers with connection attempts, affecting communications and radar feeds and prompting the FAA to halt departures for safety.
The unresolved question is what started it. Duffy identifies L3Harris as the contractor carrying out the maintenance, but says investigators are still determining whether human error or a faulty router caused the outage. His explanation describes how the disruption spread, not a completed finding about responsibility.
The clip drew nearly 468,000 views in eight hours, far beyond the usual first-day audience for CTV News's regular videos. It follows the passenger-level disruption we reported here, when Calgary travelers described being turned back after clearing security.
Duffy says flight operations have resumed, but that does not mean every passenger's journey is back on schedule. CTV's separate Saturday report says more than 2,000 flights remained canceled after the ground stop ended Friday night. Its follow-up on Sunday continues to report delays as the investigation proceeds.
The Federal Aviation Administration is the U.S. Transportation Department agency responsible for regulating civil aviation. Its responsibilities include air traffic control and airport standards.
More on Wikipedia ›Sean Duffy is the U.S. secretary of transportation. A Republican, he previously represented Wisconsin’s seventh congressional district in Congress.
More on Wikipedia ›L3Harris is an American technology company and defense contractor that also provides information technology services. Its products include communications equipment, avionics and navigation systems.
More on Wikipedia ›Published on Trari
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- Channel
- CTV News
- Subscribers
- 2,430,000
- Channel views, last 7 days
- 19,366,475
- Channel views, pace per day
- 2,572,473 (on a normal day: 3,272,603)
- Video published
- November 14, 2026
- Video views so far
- 467,841 (less than a day online)
- Video views, pace per day
- 937,288
The numbers
The briefing drew an unusually large early audience for a regular CTV News upload. The view count below reflects its opening eight hours, not a completed first day.
💡 Test your knowledge
Which company does Duffy identify as the maintenance contractor?
Duffy names L3Harris as the contractor performing the maintenance at the FAA facility.