DALLAS >> Travelers on Delta Air Lines endured hundreds more canceled and delayed flights on Tuesday as the carrier slogged through day two of its recovery from a global computer outage.

By early afternoon, Delta said it had canceled about 530 flights as it moved planes and crews to "reset" its operation.

Nearly 1,200 Delta flights had been delayed, according to tracking service FlightStats Inc.

"We are still operating in recovery mode," said Dave Holtz, the airline's senior vice president of operations.

Tuesday's disruptions followed about 1,000 cancelations and 2,800 delayed flights on Monday after a power outage at Delta's Atlanta headquarters tripped a meltdown of its booking, communications and other systems.

The airline was back online after a few hours Monday, but the ripple effects could be felt a day later.

More than 1,000 people spent the night at Narita Airport outside Tokyo because of the shutdown. While flights resumed in the morning, Delta spokeswoman Hiroko Okada said more delays were expected.

Delta also extended a travel-waiver policy to help stranded passengers rearrange their travel plans.

Video apology

The airline posted a video apology by CEO Ed Bastian. And it offered refunds and $200 in travel vouchers to people whose flights were canceled or delayed at least three hours.

Delta's challenge Tuesday will be to find enough seats on planes during the busy summer vacation season to accommodate the tens of thousands of passengers whose flights were scrubbed.


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Airlines have been putting more people in each plane, so when a system of a major carrier crashes, as has happened with others before Delta, finding a new seat for the waylaid becomes more difficult.

Last month, the average Delta flight was 87 percent full.

Confusion among passengers Monday was compounded as Delta's flight-status updates crashed as well. Instead of staying home or poolside at a hotel until the airline could fix the mess, many passengers learned about the gridlock only after they reached the airport.

They were stuck.

Delta spokesman Trebor Banstetter said that after the power outage, key systems and network equipment did not switch over to backups. The investigation of the outage is ongoing, but Banstetter said that there is no indication that the problems were caused by a hack or intentional breach of the system.

A spokesman for the local electric company, Georgia Power, said the problem started with a piece of Delta equipment called a switchgear, which direct flows within a power system. No other customers lost power, he said.

Airlines depend on huge, overlapping and complicated systems to operate flights, ticketing, boarding, airport kiosks, websites and mobile phone apps. Even brief outages can now snarl traffic. Those problems can go global in seconds.


In this photo provided by Barbara Gaines, Gaines holds handwritten boarding passes issued to her by Delta Air Lines, Monday, Aug. 8, 2016, at Edinburgh
In this photo provided by Barbara Gaines, Gaines holds handwritten boarding passes issued to her by Delta Air Lines, Monday, Aug. 8, 2016, at Edinburgh Airport, in Edinburgh, Scotland, for her trip to New York's John F. Kennedy International Airport. Delta Air Lines delayed or canceled hundreds of flights Monday after its computer systems crashed, stranding thousands of people on a busy travel day. (Barbara Gaines via AP)