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(Reuters) – Major US airlines were operational again Monday after a widespread outage that delayed hundreds of flights and caused customer complaints on social media. It's the second time in a week.
The Federal Aviation Administration said the problem was caused by the program provided by AeroData Inc. of Scottsdale, Arizona, which helps airlines measure and manage weight and balance.
The agency issued a statement around 8:30 am (Eastern time), saying the issue had been resolved and an FAA spokesman said it was planning to look into the blackout.
American Airlines, Southwest Airlines and Delta Air Lines had reported breakdowns. United Airlines said it could not create paperwork for a while.
"A brief third-party technology issue preventing some Delta Connection flights from being shipped on time this morning has been resolved," said Delta.
Other airlines have also reported a series of delays.
Southwest Airlines was the first carrier to report that the problem had been resolved and that travelers would be leaving quickly, but customers could expect flight delays.
A southwestern US spokesperson could not confirm the number of flights delayed, but said it was safe to say hundreds of people.
FlightAware, an airline tracking website, said Southwest had delayed 775 flights, or 18 percent of its US flights on Monday.
American Airlines, JetBlue Airways Corp., United Airlines and other carriers later stated that the technical problem had been resolved. JetBlue added that she was still struggling with residual delays, while United said that about 150 flights had been delayed.
Last week, several airlines reported problems with Saber Corp's flight booking and reservation system, which made it difficult for passengers to access flight check systems.
AERODATA GLITCH, PASSENGER STORM
According to a case study conducted in 2017 by VMware Inc., a few minutes of system downtime in AeroData can result in more than 100 delayed flights and lost revenue.
AeroData can not be reached immediately for a comment.
Customers have criticized Twitter for their complaints about confusion at airports and delayed flights.
A southwestern passenger said he was waiting on the tarmac of a plane in Dallas 90 minutes after the delay of his 6 am flight to New Orleans. The airline said after the recovery of the systems that the flight would arrive at 8:05.
"@SouthwestAir, I understand the problem, but if you could change the current state of your flight, it would help bewildered travelers not to run too fast to catch a flight while the plane does not. do not even wait for the door, flight 929 not 8:50 but "around" 10 am, "said a passenger on Twitter. https://bit.ly/2I4UPfV
"My first travel companion – do not update a flight because you know the previous flight was delayed – is it difficult to do the right thing at @AmericanAir?" another passenger says frustrated. https://bit.ly/2TOErlM
Other passengers have reported long waiting times at airports and missed connections.
(Report by Sanjana Shivdas in Bengaluru and David Shepherdson in Washington, edited by Patrick Graham, Bernard Orr)
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