Delta spokesman Trebor Banstetter said that after the power outage, key systems and network equipment did not switch over to backups. 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. 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. Last month, Southwest Airlines canceled more than 2,000 flights over four days after an outage that it blamed on a faulty network router. By early afternoon, Delta said it had canceled about 530 flights as it moved planes and crews to "reset" its operation.

Source: ABC News August 09, 2016 05:16 UTC