US investigates Delta after days of disruptions at Atlanta and other airports following technical failure

U.S. regulators are investigating why Delta Air Lines has struggled more than other airlines to recover from a global technology outage. Transportation Secretary Pete Buttigieg announced the investigation Tuesday, noting the impact on more than half a million passengers.

Delta Airlines canceled more than 500 flights Tuesday, following a major disruption caused by a faulty update from cybersecurity firm CrowdStrike. While most airlines have resumed normal operations, Delta’s problems persist, raising questions about its recovery process.

Delta is working to restore operations by the end of the week and is cooperating with the investigation. The Department of Transportation will also review Delta’s customer service, including long lines and stranded unaccompanied minors.

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