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U.S. planes told to land immediately as outage spreads
Major U.S. carriers including American Airlines, Delta Airlines and United Airlines issued ground stops on Friday morning.
They are blaming communication issues, less than an hour after Microsoft resolved its cloud services outage that impacted several low-cost carriers.
It was not immediately clear whether the call to keep flights from taking off were related to the earlier Microsoft cloud outage. Apart from American and Delta, UAL and Allegiant Air too grounded flights.
The FAA did not immediately respond to Reuters’ request for comment.
Frontier said earlier that a “major Microsoft technical outage” hit its operations temporarily, while SunCountry said a third-party vendor affected its booking and check-in facilities, without naming the company.
U.S. Secretary of Transportation Pete Buttigieg said the department was monitoring the flight cancellation and delay issues at Frontier, adding that the agency will hold the company and all other airlines “to their responsibilities to meet the needs of passengers”.
Frontier cancelled 147 flights on Thursday and delayed 212 others, according to data tracker FlightAware. 45% of Allegiant aircrafts were delayed, while Sun Country delayed 23% flights, the data showed. The companies did not give details on the number of flights impacted.
Microsoft said its outage started at about 6 pm ET on Thursday, with a subset of its customers experiencing issues with multiple Azure services in the Central U.S. region as several countries reported massive IT disturbances. “There are delays to check-in and flight operations had to be cancelled until 10:00 am (0800 GMT),” the spokeswoman said, adding however that she could not say when they would resume