自上周五服务提供商遭遇"网络相关事件"后，多家航空公司已恢复人工值机服务。

周日，伦敦希思罗机场以及布鲁塞尔和柏林机场的旅客再次遭遇延误，原因疑似是值机系统软件遭到网络攻击。

周五晚间，为多家航空公司提供值机技术的柯林斯航空航天公司（Collins Aerospace）遭遇疑似网络攻击后，各航空公司被迫恢复人工值机服务。

机场方面敦促旅客出行前查询航班状态，并建议长途航班乘客提前不超过三小时抵达机场，短途航班乘客提前不超过两小时抵达。

柯林斯公司周六表示正在处理一起“网络相关事件”。若最终确认为黑客攻击，这将成为近几个月来针对大型企业的系列网络攻击的最新案例。英国最大汽车制造商捷豹路罗孚因遭黑客攻击已停产三周，而英国零售商玛莎百货和合作社集团今年早些时候也分别遭遇了类似攻击。

航空公司仍可通过人工方式为乘客办理登机手续。航空数据公司睿思誉（Cirium）统计显示，周六伦敦希思罗机场、柏林及布鲁塞尔三地共有35架次航班取消，截至周日上午时段又新增38架次取消航班。

据数据公司Flightradar24统计，周日早11点前，伦敦希思罗机场已有超过130架航班延误20分钟以上。周六虽有13架航班取消，但当日数百架航班中绝大多数仅遭遇延误。

希思罗机场发言人表示，"根本问题超出了我们的控制范围"，但补充称机场已增派工作人员以应对可能出现的混乱。

希思罗机场在一份声明中表示，科林斯航空航天公司（Collins Aerospace）的航空系统上周五发生故障，影响了值机服务，目前仍在持续进行故障修复和系统恢复工作。

我们向遭遇航班延误的旅客致歉，但通过与航空公司通力合作，绝大多数航班仍保持正常运行。

周日中午前，布鲁塞尔扎芬特姆机场（服务比利时首都的两大机场之一）已有超过80架航班全部延误，延误时长从15分钟到4小时不等，另有20架周日航班被取消。

布鲁塞尔机场表示正面临“艰难的机场运营状况”。该机场称：“由于值机和登机系统外部服务提供商遭受网络攻击，包括布鲁塞尔机场在内的多个欧洲机场的值机业务受到严重干扰。”

截至中午，柏林已有超过70架航班延误，不过部分航班仍准点起飞。

柏林机场在其官网发布声明称，由于某服务供应商系统中断，目前旅客等候时间有所延长，建议优先使用在线值机、自助值机及快速行李托运服务。

英国交通大臣海迪·亚历山大（Heidi Alexander）周六表示，她正在密切关注事态发展，并建议乘客出行前与航空公司确认航班信息。

柯林斯航空航天公司周六表示，其用于电子客户值机和行李托运的Muse软件受到"网络相关中断"的影响。

柯林斯公司隶属于纽约上市公司RTX集团，该集团是全球最大的航空航天与武器制造巨头之一。周六该公司表示，正“积极致力于解决问题，并尽快为客户全面恢复系统功能”。

Airlines reverted to manual check-in since Friday after service provider hit by cyber-related incident

Passengers at London Heathrow airport and those in Brussels and Berlin faced another day of delays on Sunday after an alleged cyber-attack hit check-in desk software .

Airlines were forced to revert to manual check-in from Friday night after the alleged attack hit Collins Aerospace, which provides check-in desk technology to various airlines.

Airports urged customers to check the status of their flights before travelling and asked passengers to arrive no earlier than three hours before long-haul flights and two hours before shorter journeys.

Collins said on Saturday that it was dealing with a cyber-related incident. If confirmed as a hack it would join a long line of attacks that have hit major companies in recent months. The UKs biggest automotive employer, Jaguar Land Rover, has been unable to produce any cars for three weeks because of a hack, while the British retailers Marks & Spencer and the Co-op were also hit by separate attacks earlier this year.

Airlines were still able to check in passengers manually. There were 35 cancellations on Saturday and 38 by mid-morning on Sunday across Heathrow , Berlin and Brussels, according to the aviation data company Cirium.

At Heathrow more than 130 flights had been delayed by 20 minutes or more by 11am on Sunday morning, according to the data company Flightradar24. Thirteen flights were cancelled on Saturday, although the vast majority of hundreds of flights were delayed.

A Heathrow spokesperson said the underlying problem was outside our influence but added that the airport had added extra staff to help with any disruption.

Work continues to resolve and recover from Fridays outage of a Collins Aerospace airline system that impacted check-in, Heathrow said in a statement.

We apologise to those who have faced delays, but by working together with airlines, the vast majority of flights have continued to operate.

In Brussels every one of more than 80 flights by midday on Sunday had been delayed at the airport at Zaventem, one of two serving the Belgian capital. Delays ranged from 15 minutes to four hours. Twenty Sunday flights had been cancelled.

Brussels airport said it was facing difficult airport operations. It said: As a result of a cyber-attack on the external service provider of the check-in and boarding systems, check-in operations at several European airports, including Brussels airport, are heavily disrupted.

In Berlin, more than 70 flights had been delayed by midday, although some flights had left on time.

Due to a systems outage at a service provider, there are longer waiting times, Berlin airport said on its website. Please use online check-in, self-service check-in and the fast bag drop service.

The UK transport secretary, Heidi Alexander, said on Saturday she was monitoring the situation and asked passengers to check with airlines before travelling.

Collins Aerospace said on Saturday that cyber-related disruption had affected its Muse software used for electronic customer check-in and baggage drop.

Collins is owned by New York-listed RTX, one of the worlds largest aerospace and weapons conglomerates. The company on Saturday said it was actively working to resolve the issue and restore full functionality to our customers as quickly as possible.