American Airlines flights resumed Tuesday evening after a nationwide ground stop was issued for less than an hour due to an IT outage, the airline said. The disruption highlighted the vulnerability of critical aviation infrastructure to technology failures.
A technology issue briefly impacted connectivity for some of our systems on Tuesday evening, American Airlines said in a statement on X. Systems are coming back online now and flights are departing again.
The ground stop, issued around 6:30 p.m. ET, came during an unusually severe thunderstorm moving through the Northeast that threatened to drop more than a month’s worth of rain in parts of the region. The combination of the IT outage and the storm created significant disruptions, with more than 2,500 flights canceled across US airports, according to FlightAware.
New York City’s airports were the most heavily impacted, along with Newark Liberty International Airport in New Jersey. Thunderstorms forced additional ground stops at airports across major cities including New York, Newark, Washington DC and Baltimore.
While it was not immediately clear what caused the technology outage, the airline said temporary safety protocols were put in place while teams worked to resolve the issue. The Federal Aviation Administration did not comment on the technology failure but coordinated with the airline throughout the incident.
Aviation industry analysts noted that the incident bears similarities to the CrowdStrike IT outage that disrupted airlines globally in July 2024, raising fresh questions about the resilience of airline technology systems. Modern airline operations depend on a complex web of interconnected digital systems for flight planning, crew scheduling, check-in, baggage handling and aircraft maintenance coordination.
We apologize to our customers for the inconvenience, the airline said in its statement.
Passengers reported delays and confusion at airports across the country as the ground stop took effect. Many travelers took to social media to share their experiences, with some reporting they were already on the tarmac when flights were halted.
American Airlines said systems were gradually restored and advised passengers to check their flight status before heading to the airport. The airline did not immediately respond to requests for additional details about the root cause of the technology problem.
The incident comes amid broader concerns about the reliability of aging IT systems in the aviation sector. A Government Accountability Office report earlier this year warned that many airline and air traffic control systems rely on legacy technology that may be increasingly susceptible to outages. Industry experts have called for greater investment in system redundancy and cybersecurity protections to prevent future disruptions.
American Airlines operates thousands of daily flights and is one of the largest carriers in the United States by fleet size and passenger volume. The company has been investing in modernizing its technology infrastructure, but Tuesday’s outage demonstrates the ongoing challenges of maintaining reliable operations in an increasingly digital-dependent industry.
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