UK Transport Secretary to Meet Nats Chair After Second Air Traffic Failure in Two Weeks Cancels 170+ Flights
Why It MattersRepeated single-point control-centre failures at a national air navigation provider expose how concentrated technical dependencies can cascade into nationwide flight cancellations within weeks of each other.
What happened
UK Transport Secretary Heidi Alexander said she will meet Sir Warren East, chair of the Nats board, in the coming weeks after a second air traffic control failure in a fortnight cancelled more than 170 flights on Monday. Nats attributed the disruption to a connectivity issue at its Prestwick centre in Scotland, which also caused delays at Leeds Bradford Airport.
The incident followed a separate ATC software fault on 8 September that caused more than 2,000 flight cancellations and disrupted hundreds of thousands of passengers. Nats said that fault occurred in the space of a millisecond due to a software defect. Alexander said she had already held a full and frank conversation with Nats chief executive Martin Rolfe, telling him she was angry at the situation, and said "the scale of the disruption that we experienced yesterday was bad enough" and that airport users "would feel it adds injury to insult."
Ryanair chief executive Michael O'Leary, speaking at a press conference in London, repeatedly called for Rolfe's resignation. He cited four system failures at Nats in the past four years, including the August 2023 bank holiday disruption that affected more than 700,000 passengers and a radar-related failure last July that cancelled more than 160 flights, and said no other EU air traffic control computer system had collapsed even once in the same period. O'Leary described Rolfe as "incompetent" and "overpaid" and referenced his reported annual pay of £1.5 million.
Rolfe, appointed Nats chief executive in May 2015, had previously apologised for the 8 September incident and said he took full responsibility. Nats has apologised for both incidents this month.
Industry impact & what to watch
A national air navigation service provider suffering two separate failures within two weeks points to a systemic reliability question rather than an isolated glitch, especially when the causes named — a software defect and a connectivity issue — are technically distinct. Air traffic control in most jurisdictions runs through a small number of centralised facilities, so a single site problem, whether Prestwick or elsewhere, can ripple into cancellations and delays at multiple airports simultaneously, as happened here with Leeds Bradford.
The political dimension matters too: a transport secretary summoning the chair of the provider's board, alongside a direct call from a major airline chief executive for the chief executive's removal, signals that accountability pressure is building outside the normal regulatory channel. O'Leary's comparison to the record of other European air traffic control systems, even without independent verification here, illustrates how operators use cross-border benchmarking to argue for leadership change when repeated outages occur.
What happens next will likely hinge on the outcome of Alexander's meeting with East, whether Nats discloses further technical detail on the Prestwick connectivity issue, and whether pressure from Ryanair and other carriers translates into any change in Nats leadership or oversight structure.
