United computer problems delays flights out of Denver

One of the nation’s largest air carriers requested and received a ground stop from the Federal Aviation Administration.

But Wednesday’s incident exposes yet another example of how sensitive airline computerized systems often are, according to Michael Ibbitson, who leads high-tech operations at London’s Gatwick Airport and spoke to CNN in an interview. Still, United’s flight schedules were experiencing severe disruptions at airports across the country.

“We’re recovering from a network connectivity issue & restoring flight ops”, United Airlines said in a tweet.

A computer system glitch left thousands of United Airlines passengers across the globe grounded Wednesday, causing a ripple effect of heavy delays throughout major airports.

Less than two hours later, United asked the Federal Aviation Administration to lift the ground stop order.

A United Airlines spokesman said hackers did not cause the problem.

The carrier has been struggling with problematic computer systems since its merger in 2010 between UAL its ex- parents and Continental Airlines that created the current United Continental. In some cases, they even hold flights – Many passengers worrying they’d miss connecting flight, like Tuvesom.

Update 4: A United spokesperson confirmed that flights are restored.

The computer issue affected United as well as its feeder airlines. A number of high-paying business travellers defected to other airlines and revenue dropped.

While United was dealing with grounded flights, the New York Stock Exchange also shut down stock trading due to a technical issue. In April, more than 50 American flights were delayed when a software glitch prevented pilots from seeing some airport maps on their tablet computers.