NBC News reports:
Tens of thousands of Delta passengers around the world were grounded indefinitely Monday after a power outage caused a system-wide computer failure. Check-in systems, airport screens and even the airline’s website and smartphone apps are affected by the problem, which began at 2:38 a.m. ET. The Atlanta-based airline suspended departures until the problem can be fixed, while airport agents wrote out boarding passes by hand. “Our systems are down everywhere,” the airline told customers on Twitter.
@kateyyan Delta experienced a computer outage that has impacted flts scheduled for this morning. Flts awaiting departure are… 1/3
— Delta (@Delta) August 8, 2016
@kateyyan …currently delayed. Flights enroute are operating normally. Delta is advising travelers to chk the status of their… 2/3
— Delta (@Delta) August 8, 2016
@kateyyan …flts this morning while the issue is being addressed *VM 3/3
— Delta (@Delta) August 8, 2016