Air travel hit by global cyber outage
By Andrew Mills, Joanna Plucinska and Lisa Barrington
EDINBURGH/LONDON/SEOUL, July 19 (Reuters) -Air passengers around the world faced delays, cancellations and problems checking in as airports and airlines were caught up in a massive IT outage that also affected industries ranging from banks to media companies.
In Edinburgh, a Reuters witness said boarding pass scanners carried a "server offline message", with the airport saying passengers shouldn't travel to the airport without checking their flight status online first.
Elsewhere, airports and airlines advised customers to arrive earlier than normal for flights. Analysts said the outage was likely tied to a glitch in Microsoft software used globally.
Microsoft MSFT.O said users might be unable to access various Office 365 apps and services due to a "configuration change in a portion of our Azure-backed workloads".
Hong Kong International Airport said a Microsoft outage was affecting several airlines and it had switched to manual check-in, but flight operations had not been affected.
Singapore's Changi airport also said check-ins were being handled manually.
According to an alert sent by Crowdstrike to its clients and reviewed by Reuters, the company's "Falcon Sensor" software is causing Microsoft Windows to crash and display a blue screen, known informally as the "Blue Screen of Death".
The alert, sent at 0530 GMT on Friday, also shared a manual workaround to rectify the issue. A Crowdstrike spokesperson did not respond to emails or calls requesting comment.
The aviation sector is hit particularly hard due to its sensitivity to timings. Airlines rely on a closely coordinated schedule often run by air traffic control. Just one delay of a few minutes can throw off a flight schedule for take-offs and landings for an airport and airline for the rest of the day.
Airlines across the United States, Asia and Europe, including major carriers such as Ryanair RYA.I, Delta and Air India, said they had either faced delays or disruption.
Several U.S. carriers including American Airlines AAL.O, United Airlines UAL.O and Delta Airlines issued ground stops for all their flights early on Friday due to communication problems, according to the U.S. Federal Aviation Administration.
In Europe, Schiphol airport, Berlin airport, London Gatwick, Edinburgh airport and others said they were impacted by the outage.
"We expect longer waiting times and some flight cancellations. Not all airports in Europe were impacted as the issue is linked with a specific OS, Microsoft Azure," said Agata Lyznik, a spokesperson for airports group ACI Europe.
Some airlines said they were already back online, with Spanish carrier Iberia saying it had managed to avoid flight cancellations.
"From 9:25 a.m. onwards the electronic check-in counters and online check-ins were reactivated. There have been some delays," a spokesperson said.
Reporting by Reuters bureaux, James Pearson in London; Writing by Joanna Plucinska; Editing by Mark Potter
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