The United States Federal Aviation Administration (FAA) lifted a nationwide ground stop on Friday that had paralyzed domestic and international air travel for over four hours. The disruption, caused by outdated telecommunications equipment, resulted in thousands of flight cancellations and delays, forcing a gradual recovery for global airline schedules.
The suspension, which began at 15:54 local time on Friday and lasted four hours and 21 minutes, was the largest stoppage of American airspace in 25 years, according to Diário de Notícias. While operations resumed at 20:15, the impact rippled across international hubs, including those in Portugal.
How did European carriers respond to the FAA mandate?
TAP Air Portugal confirmed it followed instructions from U.S. authorities throughout the event, ensuring that aircraft already in transit remained safe. While the airline maintained authorization to land at its American destinations, the carrier was forced to manage a cancellation and a delay for flights originating from Boston, as these coincided with the FAA’s emergency order, RTP reported.
There are currently 3,100 airborne aircraft bound for US airports amid nationwide ground stop. No additional aircraft are taking off at this time. pic.twitter.com/GGqfb8QXhP
In the Azores, an Azores Airlines flight from Boston arrived at Ponta Delgada with a 30-minute delay, narrowly avoiding the total suspension. Meanwhile, operations at Porto airport remained unaffected, with a flight from New York even arriving earlier than scheduled. TAP flights arriving in Lisbon from Newark successfully touched down approximately 20 minutes ahead of schedule, according to Diário de Notícias.
What caused the breakdown in American airspace?
U.S. Secretary of Transport Sean Duffy attributed the failure to telecommunications routers being overwhelmed by data, noting that the equipment involved dates back to the 1990s.
The @FAAnews issued a nationwide ground stop for all U. S. airports following a communication issue impacting all Air Route Traffic Control Centers. FAA technicians are investigating the issue. We will provide immediate updates as we have them.
“The system is outdated and represents a risk to national security.”
said Markwayne Mullin, Secretary of Homeland Security, as reported by Times Brasil. The incident occurred just one day after the White House requested a multi-billion dollar sum from Congress to modernize the nation’s air traffic control network, Diário de Notícias noted.
What is the scale of the global travel disruption?
The suspension affected more than 1.5 million passengers worldwide, with at least 6,000 flights canceled and upwards of 800 aircraft in the air forced to divert or hold their positions.
| Metric | Reported Impact |
|---|---|
| Duration of Ground Stop | 4 hours and 21 minutes |
| Total Flights Canceled | thousands of flights globally |
| Passengers Affected | Over 1.5 million |
| Aircraft in Transit | more than 800 |
The Eurocontrol organization had also suspended all departures from Europe to the United States at the request of the FAA during the height of the crisis, Público reported.
As of Saturday morning, flight tracking data indicated that the recovery process remained fragile, with over 6,200 delays and 3,400 cancellations still being processed by the system.
The current ground stop is not based on or a result of the SMART system, any product of ASI or our integration with FAA and ATC.
More on Ground Stop
We have no indication that the FAA’s nationwide ground stop is related to any Microsoft services.
