NATS, the company responsible for UK air traffic control, has confirmed that the massive travel disruption seen last week was triggered by a specific software defect. According to CEO Martin Rolfe, a tiny snippet of code within their flight data system faltered when a high-priority request interrupted a standard aircraft identification task, forcing the system into a manual backup mode. While NATS has since implemented a mitigation strategy while working on a permanent fix, Rolfe maintains that safety was never compromised and explicitly stated that this incident was unrelated to previous failures or external interference.

Despite these assurances, the government and major airlines remain highly critical of the organization's performance. Transport minister Heidi Alexander labeled the chaos, which resulted in 2,000 flight cancellations, as entirely unacceptable and has launched an independent review to investigate why the flaw went undetected. Meanwhile, Ryanair has renewed its demands for Rolfe to step down, dismissing the explanation as insufficient and questioning the competence of NATS leadership following a recurring string of technical failures over the past few years.