Air travel across the United States faced persistent disruptions for a third consecutive day on Sunday, following a major technical failure that grounded thousands of flights. According to data from FlightAware, more than 1,600 flights were cancelled and nearly 3,600 were delayed on Sunday alone, adding to the thousands of cancellations reported on Saturday.
Transportation Secretary Sean Duffy, speaking on ABC’s "This Week," confirmed that the disruptions stemmed from an air traffic control system failure. A contractor, L3Harris, had installed a new router at a facility in El Dorado, Arkansas, which triggered data overload issues in a recently replaced router in Amarillo, Texas. This caused a cascading effect, overloading other air traffic control centers nationwide. Officials have since disabled the malfunctioning router and approximately 60 similar units within the system.
Duffy stated there is no evidence of cyberattacks or malicious intent, describing the worker involved as a veteran who was performing routine maintenance. While the cause of the specific technical malfunction remains under investigation, the Federal Aviation Administration (FAA) previously implemented a national ground stop on Friday that halted departing flights for nearly five hours.
President Donald Trump addressed the situation on Sunday, calling for immediate congressional funding to modernize the system. While the administration seeks $50 billion for infrastructure upgrades, Democratic Representatives Rick Larsen and Andre Carson expressed skepticism, noting that $11 billion from a previously approved $12.5 billion budget remains unspent. Duffy clarified that existing funds are earmarked for specific projects and do not cover necessary software upgrades.
Key facts
- Over 5,200 flights were impacted on Sunday, including 1,600 cancellations and 3,600 delays.
- The disruption began on Friday with a national ground stop lasting nearly five hours.
- Router issues were traced to facilities in El Dorado, Arkansas, and Amarillo, Texas.
- Transportation Secretary Sean Duffy requested $50 billion to address aging infrastructure.
- The FAA disabled approximately 60 routers in the system to prevent further communication failures.
Why it matters
The incident has intensified a debate over the state of US aviation infrastructure, which currently relies on technology that, in some cases, dates back to 2001. As Congress prepares for a leadership transition in January, lawmakers are expected to debate the necessity of increased federal funding to prevent future systemic failures.
Background
Friday's ground stop was the longest nationwide halt to US air travel since the September 11, 2001, terrorist attacks.
Source: Economic Times
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