Major Flight Disruptions Due to Technical Issue
A significant technical issue at the National Air Traffic Services (Nats) caused widespread disruptions across the UK, with nearly 130 flights cancelled and dozens more delayed. The problem, which lasted only 20 minutes, led to a temporary grounding of all outbound flights, affecting over 700,000 passengers.
Nats confirmed that its air traffic control systems were fully restored by around 5pm on Wednesday, and departures at all airports had resumed. The company stated it was working with affected airlines and airports to clear the backlog safely and apologised for the inconvenience caused.
In a second statement released later in the evening, Nats explained that the issue was related to radar systems and was resolved by switching to a backup system. During this time, traffic was reduced to ensure safety. The company also clarified there was no evidence of a cyber-related cause.
Aviation analytics firm Cirium reported that 127 flights to and from the UK had been cancelled by 7:30pm on Wednesday. In total, 67 departures and 55 arrivals were cancelled at UK airports. Heathrow Airport experienced the highest number of cancellations, with 24 departures and 14 arrivals affected.
At around 6pm, 16 flights enroute to London Heathrow had to be diverted to other airports. One passenger, Valentina Balsarin, from Milan, shared her experience of being diverted to Paris after her flight was initially heading to Heathrow for a connecting flight to New York. She described the confusion and lack of communication during the delay, adding that her flight to New York had already departed from London.
A spokesperson for the Department for Transport said that while passengers should check with individual airports for advice, Nats confirmed its systems were now fully operational. The department is working closely with Nats to understand the cause of the technical issue and its implications for resilience systems.
The spokesperson also noted that Transport Secretary Heidi Alexander does not have control over Nats and has no authority over staffing decisions. Liberal Democrat leader Sir Ed Davey criticised the repeated failures of the air traffic control system, calling for an urgent investigation to ensure the system is fit for purpose and ruling out any hostile action as a cause.
Ryanair called for the resignation of Nats chief executive Martin Rolfe, citing “yet another” failure of the air traffic control system. The airline’s chief operating officer, Neal McMahon, expressed outrage over the delays and disruption caused by what he described as Rolfe’s continued mismanagement.
McMahon added that if Rolfe fails to resign following the latest outage, Alexander must act without delay to remove him and implement urgent reforms. He stressed that no lessons had been learned since the August 2023 Nats system outage, which left thousands of passengers disrupted.
This incident has reignited concerns about the reliability and management of the UK’s air traffic control system, with calls for greater accountability and improvements to prevent future disruptions. As the aviation industry continues to face challenges, the need for robust and resilient infrastructure becomes increasingly critical.
