Transportation Secretary Sean Duffy confirmed that the FAA's nationwide ground stop on November 11, 2026, was linked to the replacement of outdated copper wire with fiber optic lines at a remote facility. Duffy characterized the work as routine maintenance, clarifying that the old wire was being discontinued. He also mentioned that the specific cause of the problem is still unknown, with possibilities including faulty hardware or misconfiguration.
Key facts
- FAA ordered a nationwide ground stop on November 11, 2026.
- The ground stop was due to replacing copper wire with fiber optic lines.
- Transportation Secretary Sean Duffy described the work as routine maintenance.
- The old copper wire was being discontinued.
- The root cause of the issue remains unclear.
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