Security AlertMedium
FAA says old copper wire work caused nationwide flight ground stop
Nov 14, 2026 · Summarized by Fundy Tech from 6 sources
The 30-second version
The FAA says Friday’s ground stop came from maintenance tied to a fibre optic upgrade at a remote facility, not a cyberattack. Officials say flights resumed, but delays may continue for days.
Key points
- Sean Duffy said outdated copper wire was being replaced with fibre optic line.
- The router issue flooded air traffic control systems with connection attempts.
- Officials say there is no evidence of hacking or cyberattack.
- L3Harris said it has completed more than 70% of the planned conversion.
Why it matters
For airlines and travellers, this shows how one technology fault can disrupt flight schedules across a whole country. Small businesses that rely on air travel, shipping, or staff travel can also face knock-on delays.
Who’s affected: US air travel and connected businesses
Original reporting
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