The Wall Street Journal
By Alison Sider
Updated September 5, 2023 3:45 pm ET
United Airlines said flights resumed after it paused departures Tuesday afternoon citing a systemwide technology issue.
The airline didn’t specify what system was affected, but later said it had identified a fix for the technology issue.
The disruption was relatively brief—the ground stop was lifted at about 1:45 p.m. ET, about an hour and 15 minutes after United had asked the Federal Aviation Administration to hold flights across the country, according to FAA air-traffic control advisories. The airline’s flights were unable to connect to dispatch through normal means, according to a separate air-traffic control notice.
Tuesday’s ground stop came at the tail end of the busy Labor Day travel weekend. United had canceled just a handful of flights as of midday Tuesday, and about 9% of its mainline flights were delayed, according to FlightAware, a flight tracking site.
Airlines depend on a vast array of software systems and can be vulnerable to glitches. Failure of a vendor-supplied firewall caused widespread delays for Southwest Airlines in April.
The FAA has also had technology issues. Flights across the U.S. were halted for nearly two hours in early January when a system for distributing pilot alerts went offline. The FAA said a contractor had unintentionally deleted computer files in the system.
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ReplyDeleteDealing with flight delays right after Labor Day weekend is so stressful. When tech glitches ruin travel plans, it's annoying. To pass the time while flights are grounded, I usually relax online or play games over at TonyBet Chile
ReplyDeletefor a bit of fun. At least it beats waiting at the airport!
The United Airlines incident is a good example of how technology problems can quickly affect a large operation. The temporary ground stop, flight delays, and cancellation figures provide measurable information that helps explain the impact on travelers. Looking at those numbers gives a clearer picture than simply saying the disruption was widespread.
ReplyDeleteI find examples like this useful when studying statistics because real events make numerical concepts easier to understand. A student could examine delay percentages, compare flight numbers, or calculate changes over time. When coursework becomes demanding, students may search for support to do my statistics homework and better understand data analysis.