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Air Traffic Control Disruption
10 September 2026
Lead MP
Keir Mather
Debate Type
Ministerial Statement
Tags
Transport
Other Contributors: 22
At a Glance
Keir Mather raised concerns about air traffic control disruption in the House of Commons. A government minister responded. Other MPs also contributed.
How the Debate Unfolded
MPs spoke in turn to share their views and ask questions. Here's what each person said:
Government Statement
Keir Mather apologised to UK passengers affected by NATS's system failure on 8 September, resulting in significant delays and cancellations. At Swanwick, NATS experienced an issue with its flight processing system, affecting data availability for controllers. Despite NATS's efforts to recover, the disruption continued, impacting the UK aviation network. The Government offered support by granting night flight alleviations to assist in recovery at Heathrow, Gatwick, and Stansted. NATS will submit a report by 16 September detailing the cause and actions to prevent recurrence. The Civil Aviation Authority will conduct an independent review, with an update due within six months. Mather met representatives from Unite the union to discuss the impact on frontline workers and their support to passengers during the disruption.
Question
Smith criticised the Government for not offering a statement initially and highlighted the severe impact on passengers, citing 2,000 cancelled flights and over 150,000 affected individuals. He questioned the adequacy of the timeline for diagnosing the problem and called for immediate action instead of delaying tactics. He urged the Government to take responsibility and ensure that lessons are acted upon, not just learned. Smith asked for more detail on the cause of the disruption, questioning whether it was a software failure or due to insufficient engineering resources. He also criticised the lack of suitable contingency plans by airlines and airports.
Minister reply
Mather thanked Smith for his questions and provided more detail on the cause, stating it was a technical issue in NATS's flight processing system, affecting flight plan data for controllers. He acknowledged the need for contingency and resilience planning at airports and committed to discussions with the CAA, NATS, airlines, and airports. Mather explained that the timeline for the report and review is proportionate and timely, allowing for a thorough assessment of the technical matter while ensuring aviation safety.
Hayes and Harlington
Question
McDonnell thanked the Minister for his statement and mentioned that NATS used to be in his constituency, now moved to Swanwick. He receives correspondence from constituents regarding Heathrow airport issues. He asked whether NATS's resourcing is adequate to deal with such issues.
Minister reply
Mather thanked McDonnell for his constructive question and acknowledged the need to ensure proper capacity and resources at NATS to handle disruptions. He praised the efforts of the NATS teams during the recovery and committed to reviewing NATS's resilience, including large-scale technological transformations to ensure air traffic control systems are fit for purpose.
Question
Olly Glover questioned whether the Government should focus on fixing the air traffic control systems before committing to massive aviation expansion, given recent incidents and poor passenger experiences.
Minister reply
Keir Mather acknowledged that while air traffic control systems generally perform well, recent incidents highlight the need for improvements. The Government aims to ensure passenger safety and effective oversight of NATS as part of their expansion plans.
Mike Kane
Lab
Wythenshawe and Sale East
Question
Mike Kane thanked the Minister and raised concerns about the lack of progress in implementing previous recommendations and the need for wider reform of the CAA and NATS to accommodate technological advancements.
Minister reply
Keir Mather thanked Mike Kane for his work and acknowledged the need to encourage NATS to go further in technological innovation, pushing boundaries in areas like electric vertical take-off and landing and drones to ensure a world-class aviation sector.
Question
Paul Holmes thanked the staff of NATS and urged the Minister to look seriously at the six-month timescale for the CAA review and to commit to full transparency in sharing lessons learned.
Minister reply
Keir Mather thanked Paul Holmes for his constructive questions and stated that six months is the appropriate timeframe to report back and learn lessons effectively. He highlighted the importance of the Civil Aviation (Consumer Protection and Regulatory Reform) Bill to enhance passenger rights and improve the travel experience.
Question
Alan Gemmell thanked the Minister for his leadership and NATS staff for their support in managing the incident.
Minister reply
Keir Mather thanked Alan Gemmell for his support and acknowledged the hard work of NATS staff in ensuring aviation safety and restarting flights safely.
Question
Bradley Thomas asked the Minister for the economic cost of the incident and plans to compensate affected passengers.
Minister reply
Keir Mather acknowledged the significant economic impact of the incident and stated that passengers are entitled to assistance from airlines, including refunds, rerouting, and care during delays or rerouting.
Question
Daniel Francis thanked the Minister and asked about supporting vulnerable passengers, particularly wheelchair users and blind or partially sighted passengers, in future incidents.
Minister reply
Keir Mather thanked Daniel Francis for his advocacy and highlighted the Civil Aviation (Consumer Protection and Regulatory Reform) Bill's aim to enhance air passenger rights, particularly for vulnerable passengers.
Alec Shelbrooke
Con
Elmet and Rothwell
Question
Alec Shelbrooke questioned the Minister's oversight to ensure that technology and upgrade plans do not get sidetracked by delays or bugs.
Minister reply
Keir Mather reassured Alec Shelbrooke that the Department prioritises technological transformation and resilience, with the Secretary of State setting clear expectations through a priorities letter to NATS and the CAA.
Redditch
Question
I thank the Minister for his statement, and for all the work that he is doing to get this situation resolved. Unfortunately, the cancellations impacted some of my Redditch residents yesterday. Will he assure me that he is reminding airlines that they have a continued duty of care to people, and have to get them home as quickly as possible, particularly those who have been stranded far from home?
Minister reply
We are in close dialogue with both airlines and airports, and are reminding them of what needs to be done to protect the welfare of their passengers. Both airline and airport staff and the companies themselves across the country are endeavouring to do the right thing by their passengers who face this disruption. The Department needs to ensure that it is doing its bit, and we will never be shy of fighting for passengers and their rights.
Christine Jardine
Lib Dem
Edinburgh West
Question
I apologise for the earlier slip, Madam Deputy Speaker. May I echo the comments about the fantastic job done safeguarding the British public by the staff at NATS? Just recently, I visited air traffic control in our control tower at Edinburgh airport, and I saw at first hand the amount of work that goes into keeping the public safe. However, through the airport, I am acutely aware that there is dissatisfaction with the delays in the new airspace management programme. We have not made progress in Scotland; in fact, we fear that this will be put aside for yet another year. That all feeds into a lack of confidence among the British public and air passengers in our transport system. Can the Minister assure me that steps will be taken to speed up the management, and to ensure that our air passengers get the improved system that they deserve?
Minister reply
I thank the hon. Lady for her challenge. She is right; both Glasgow and Edinburgh airports have ambitious programmes of airspace redesign under way. I reassure her that the Department is committed to working productively with them to ensure that they can realise those airspace change proposals as quickly as possible. That will help us to make our flights more efficient, reduce carbon burn, stop planes idling when they do not need to, and hopefully minimise noise. Scotland is well ahead of other areas in that space, and we need to give it all possible tools, so that it can deliver that important work.
Question
Many passengers and their families across the country will still be wondering whether the disruptions caused by the incident have been fully cleared. Will the Minister confirm the current situation? When does he expect that airports will return to providing the excellent service that they generally provide?
Minister reply
My hon. Friend is right to point out that the issue that caused the initial disruption was fixed as quickly as possible by NATS, but a number of hours then went by, because it needed to ensure that the system was stable when it was rebooted, and that flights could return to the air safely. That is the most important consideration for NATS when it faces disruption of this kind. I can confirm that the congestion we have seen has largely passed through, despite the fact that lots of planes were out of place and needed to be rerouted. It is now up to the Department for Transport, NATS and the CAA to work practically together to ensure that any subsequent congestion is minimised, and that the British public can carry on flying to where they need to go.
Simon Hoare
Con
North Dorset
Question
Against a backdrop of realism—things just go wrong, no matter how much money is invested in them, or how up to date they are—does it not seem slightly ludicrous that NATS has put all its eggs in one basket? There is no shadow, back-up or secondary scheme that can be used. If there was, it might not be as good as the main one, but it would minimise, or certainly attenuate, disruption. Is it in the Minister’s thinking to put the eggs in more baskets, rather than just relying on one particular bit of software?
Minister reply
The Secretary of State said from the Dispatch Box yesterday that she is of the view that while this disruption was not foreseen, it was not unavoidable, and there are lessons to learn about how we can minimise the chances of this recurring. The hon. Member is right to point to the fact that resilience is clearly not where it needs to be. We need our technological systems to be more adaptive and more reactive. That is exactly why the Secretary of State has said that technological change needs to be at the forefront of the CAA and NATS’ priorities, and agility and the resilience in the system need to be among their top considerations.
Harlow
Question
As you will be aware, Madam Deputy Speaker, this issue has had a huge impact on my constituency of Harlow. Not only do many passengers use Stansted airport, but over 1,000 members of its staff live in my constituency. I have full faith in the Minister and his ability to lead on this issue, but can he reassure my constituents that he is doing everything he can to hold the leadership of NATS to account and to ensure that this does not happen again, and to ensure that, as the hon. Member for North Dorset (Simon Hoare) said, if something like this does happen again, there are contingency plans in place?
Minister reply
The Transport Secretary and I met Martin Rolfe on Wednesday, and expressed our concern about the scale of disruption on behalf of passengers and the industry. The Transport Secretary has asked for the cause of the issue to be identified and addressed as quickly as possible. Scrutiny of both the leadership of NATS and the technological programmes and processes is critical, and is something that the Department will keep at the forefront of our minds in the days and weeks to come.
Christchurch
Question
Does the Minister agree that this incident, and the other ones that preceded it, are a threat to national security? As my hon. Friend the Member for Hamble Valley (Paul Holmes) said, more than 100 RAF personnel are stationed at Swanwick, and are involved in protecting our national interest and our defence. The Minister has not yet addressed the security threat to our country posed by this incompetence.
Minister reply
Allow me to reassure the hon. Member that the civil aviation air traffic control systems and those used by the military and the Ministry of Defence are separate. However, it is right to say that our air traffic control for civil aviation is a foundation of the resilience of our aviation sector, and an enormous amount of economic growth is dependent on that sector functioning effectively, whether that be through air freight, the movement of business travellers to where they need to go, or facilitating the UK tourism industry. That is why it is so important that lessons are learned from this incident, and that we identify how we can minimise impacts on our national resilience in future.
Question
NATS is a significant local employer for my constituents, and I put on record my thanks to the engineers and controllers who worked hard to restore the system and keep passengers safe. However, this is the third such collapse in three years, and all employees who work for NATS, as well as the airports, airlines and passengers who rely on it, deserve better. What steps is the Minister taking to ensure that a genuinely effective back-up system is in place, so that we are not back here again in another two years?
Minister reply
I thank the hon. Lady for her work representing her constituents who are employees of NATS. Let me use this opportunity to thank them again for the hard work that they do. However, she is right to say that resilience in those systems is not currently where we need it to be. We never want disruption of this kind to occur, but when it does, we need to use it as a productive lesson on how we can strengthen systems and ensure that when things do go wrong, they are restored as quickly as possible. I am confident that NATS responded to this incident in the shortest possible timeframe, while ensuring that safety was paramount for aircraft, both arriving and departing, but there are lessons to be learned about the contingency plans that need to be put in place, and we will endeavour to learn them.
Desmond Swayne
Con
New Forest West
Question
Just how confident is the Minister that this was not a cyber-attack? How confident is he of the resilience of the system in the event of such an attack, and how confident is he in the willingness and ability of the Government to retaliate in the event of such an attack, as the best form of deterrence?
Minister reply
As the right hon. Member knows, retaliation against cyber-attacks is not an appropriate matter to discuss at the Dispatch Box. However, he raises an important point about our overall resilience and ability to defend against cyber-attacks when they occur. While NATS has confirmed that this was a technical issue—it does not believe it to be cyber-related—I can reassure the right hon. Member that the CAA, NATS, DFT and transport providers work very closely together to defend against cyber-attacks from our adversaries, and any other threats that may emerge.
Question
Any disruption to aviation has an adverse impact on travellers coming from Northern Ireland. Will the Minister give reassurance that when he speaks of contingency and resilience, he includes the Northern Ireland airports—Aldergrove airport in my constituency and Belfast City airport—within that?
Minister reply
Aviation connectivity is perhaps nowhere more important than from Northern Ireland to the rest of the United Kingdom. It is an economic and a social lifeline—I am cognisant of that. I can reassure the hon. Member that retaining resilience with the links from Northern Ireland to the UK mainland is of the utmost importance to me, and I would be glad to speak further to him to think about how we can strengthen those aviation links.
Bob Blackman
Con
Harrow East
Question
Many of my constituents work at Heathrow airport. They have had to work extra hours and have suffered abuse. I also want to know what advice the Department is giving to constituents affected by flight cancellations on claiming compensation and alternative travel opportunities. Has a hotline been set up for immediate advice?
Minister reply
The Department encourages constituents to raise thorny issues with the Minister. Passengers whose flights have been cancelled are entitled to assistance from airlines, including refunds or rerouting. The CAA has published guidance on its website stating that delays and cancellations due to the NATS technical incident are likely to be considered extraordinary circumstances. The Department will work with airports and airlines to ensure that passengers can access the support they need.
Question
A constituent's shift at an airport was cancelled due to the air traffic control system problems and they were told not to expect pay for that day. Will the Minister confirm that all workers who were due to work at airports yesterday should get paid for that shift?
Minister reply
The Minister reiterates his thanks to airport workers and expresses concern about the case raised. He invites the MP to write to him with more details so that appropriate action can be taken.
Jim Shannon
DUP
Strangford
Question
This is the third time such an incident has occurred in three years. The chief executive of NATS received an £871,000 bonus. What specific resilience measures is the Minister’s Department implementing to prioritise Northern Ireland air bridges during system recovery? Why are passengers bearing the financial burden while NATS avoids accountability?
Minister reply
The Minister outlines threefold response: fixing technical faults to minimise future incidents, strengthening resilience of air connectivity from Northern Ireland, and implementing measures in the Civil Aviation Bill to enhance consumer protections and aviation safety.
Shadow Comment
Greg Smith
Shadow Comment
Greg Smith criticised the Government for not offering a statement initially and highlighted the severe impact on passengers, citing 2,000 cancelled flights and over 150,000 affected individuals. Smith questioned the adequacy of the timeline for diagnosing the problem and called for immediate action instead of delaying tactics. He urged the Government to take responsibility and ensure that lessons are acted upon, not just learned. Smith asked for more detail on the cause of the disruption, questioning whether it was a software failure or due to insufficient engineering resources. He also criticised the lack of suitable contingency plans by airlines and airports.
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