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Delta Air Lines warned Wednesday that flights may be delayed after a “technical issue” hit some of its platforms, preventing passengers from checking in.
“Delta is working quickly to address a technical issue impacting some of our applications including customers’ ability to book, check in and board,” the airline said in a statement. “Some delays are expected.”
Delta did not immediately say what caused the issue or how many flights were delayed.
The airline previously said a system-wide outage in August 2016 cost it $150 million in revenue. Outages have also hit American and United in recent years.
U.S. airlines suffered 34 computer outages between 2015 and 2017, and 85% of them caused flight delays and cancelations, according to a report by the Government Accountability Office last week.
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