‘No evidence’ malign activity caused Wednesday’s air traffic disruption, says transport secretary

There is no evidence that malign activity was responsible for yesterday’s outage of air traffic control systems, the transport secretary has said.

Heidi Alexander said she has spoken with the chief executive of National Air Traffic Service (NATS), Martin Rolfe, and added that what happened was an isolated incident.

NATS has apologised for the IT problems after thousands of passengers suffered extensive travel disruption during one of the busiest times of the year.

The technical glitch led to more than 150 flight cancellations, leaving airlines reacting furiously.

Ms Alexander wrote on X: “I have spoken with NATS CEO Martin Rolfe who provided further detail on yesterday’s technical fault.

“This was an isolated event and there is no evidence of malign activity.

“I know that any disruption is frustrating for passengers.

“Flights are now resumed and I am grateful to airlines who are working hard to get people to where they need to be.

“I will continue to receive regular updates. Passengers should check with airlines before travelling.”

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Officials said a “radar-related issue” caused the air traffic control failure.

A spokesperson for NATS said: “This was a radar-related issue which was resolved by quickly switching to the back-up system during which time we reduced traffic to ensure safety.

“There is no evidence that this was cyber related.”

The problem occurred at NATS’ control centre in Swanwick, Hampshire, and affected the vast majority of England and Wales.

Aviation analytics company Cirium said 84 departures and 71 arrivals were cancelled to or from UK airports up to 10pm on Wednesday, with several flights diverted to other European airports.

There was limited disruption on Thursday, with a handful of British Airways flights cancelled because aircraft and crew were out of position.

Heathrow and Gatwick airports said they had resumed normal operations.

Affected passengers are unlikely to be entitled to compensation as the disruption was outside of airlines’ control, but they will be able to claim expenses for a reasonable amount of food and drink, a means to communicate and overnight accommodation if required.

Ryanair has called on Mr Rolfe to resign, claiming “no lessons have been learnt” since a similar systems outage in August 2023.

The airline’s chief operating officer Neal McMahon said: “It is outrageous that passengers are once again being hit with delays and disruption due to Martin Rolfe’s continued mismanagement of Nats.”