On September 25, 2026, nearly 300 flights were cancelled at UK airports following a software failure in the air traffic control system operated by NATS. Thousands of additional flights across the UK and Europe were grounded or delayed as a result of this disruption.
CAA Launches Independent Review of NATS Software Failure
The UK Civil Aviation Authority (CAA) announced an independent review into the causes and impacts of the NATS air traffic control software failure. The review aims to evaluate NATS’s internal report on the failure, assess the consumer consequences, and scrutinize NATS’s plans to modernize and replace critical operational systems. An initial report is scheduled for submission
to UK Transport Secretary Heidi Alexander by the end of January 2027, with a final report expected by March 8, 2027.
Official Responses and Review Objectives
UK Transport Secretary Heidi Alexander stated, “In recent weeks, passengers and airlines have been let down too many times, and I’m determined to get to the bottom of why.” She emphasized the need for clear answers and subsequent action following the review. A NATS spokesperson welcomed the CAA’s publication of the review scope and confirmed full cooperation with the regulator in investigating the incident and restoring system reliability.
Previous Failures and Industry Reactions
This is the second significant NATS system failure under CAA scrutiny
within three years. Multiple European airlines reported flight cancellations or delays due to the technical failure. Ryanair publicly called for the resignation of NATS CEO Martin Rolfe following the incident. The CAA’s review will also assess the implementation status of prior recommendations and consider lessons from international best practices to prevent future disruptions.
