Two major disruptions have unfolded within roughly a day of each other. So far, no connection has been confirmed.
PALM SPRINGS, CA
A widespread Microsoft 365 outage disrupted email and other online services used by businesses and governments around the world. Then, on Friday, a communications problem led the Federal Aviation Administration to halt departures at airports across the United States.
The timing of the two disruptions is unusual, and it raises an understandable question: Are they connected?
As of Friday afternoon, no connection between the Microsoft outage and the FAA communications problem had been confirmed. Both incidents remained under investigation, and the timing alone does not establish that they share a cause.
Microsoft 365 Service Returns for Many
The Microsoft disruption began Thursday, affecting Outlook email and other services that rely on the company’s Exchange Online system. Features in Teams, SharePoint and Microsoft’s Copilot tools were among those also affected.
By Friday, Microsoft 365 services were working again for many users as Microsoft reported progress restoring access and processing delayed email. Some users could still experience intermittent problems or delayed messages, and Microsoft said it did not yet have a timeline for full recovery.
Microsoft reported that a process responsible for establishing secure connections became overwhelmed, causing affected servers to stop responding. The company said it had not determined the underlying cause and had found no indication that malicious activity was responsible.
FAA Halts Departures Nationwide
On Friday afternoon, the FAA issued a nationwide ground stop because of communications problems affecting regional air traffic control centers.
Transportation Secretary Sean Duffy said the issue affected the 22 regional centers that guide planes between airports across the country. FAA technicians were investigating, according to The Associated Press.
A ground stop holds affected flights on the ground. It does not mean that planes already in the air are ordered to land immediately.
Before Friday, the FAA had issued nationwide ground stops on two other occasions. On Sept. 11, 2001, the FAA halted departures and ordered planes already in the air to land following the terrorist attacks. On Jan. 11, 2023, the FAA temporarily halted domestic departures after a failure in the system that sends pilots important flight safety notices.
Is There a Connection?
The two incidents involve different reported problems. Microsoft has described an issue affecting its online services and servers. The FAA has described a communications issue at air traffic control centers.
Neither description establishes whether the incidents share a cause. The possibility remains an unanswered question, but there is currently no confirmed evidence tying the two together.
Microsoft’s statement that it found no indication of malicious activity applies to its own outage. It does not establish what caused the FAA problem.
What It Means for the Coachella Valley
For travelers flying through Palm Springs International Airport or other U.S. airports, the nationwide ground stop could mean delays or changes to travel plans. Passengers should check directly with their airline for the latest information about their flight.
For local businesses that depend on Outlook and Microsoft 365, the outage is a reminder that email and other everyday tools can be disrupted for extended periods. Even as service returns for many, businesses may want to confirm time-sensitive messages by phone if they experience delays.
The two disruptions have drawn attention because they happened so close together and affected systems people rely on every day. Whether that timing turns out to be coincidence or investigators identify a connection remains to be seen.