A technical fault at the National Air Traffic Services (NATS) Prestwick control centre in Scotland disrupted air traffic across Scotland, Northern Ireland, and northern England, with Manchester Airport among those affected and airlines warning of potential disruption.

NATS said the restrictions were necessary for safety, stressed the issue was not the same as an earlier month’s problem, and urged passengers to check flight status with their airlines.

Industry reacts strongly: EasyJet called for resilience and questioned NATS systems; Jet2 demanded action and accountability; Ryanair highlighted thousands of disrupted passengers and urged CEO Martin Rolfe to resign.

Context notes point to a prior software defect; NATS’ chief executive defended his position as industry officials urged changes and potential resignations if needed.

Broader sector developments include Airbus planning up to 900 hires in north Wales for A321 production and ongoing discussions on Made in Europe affecting UK automotive supply chains, underscoring resilience concerns in European trade flows.

Market context showed cautious sentiment in aviation and energy sectors, with European stocks, oil prices, and bond yields reacting to geopolitical and economic developments.

Officials urged travelers to stay informed and for outlets to report further developments as they emerge.

Industry figures and MPs criticized NATS, with Airlines UK calling for stronger resilience and pointing to a Civil Aviation Authority report and Civil Aviation Bill aimed at addressing weaknesses.

NATS’ CEO described the September 8 incident as a software problem in a small code segment, with a permanent fix being tested and deployed.

A September 18 preliminary NATS investigation identified a software defect in the flight data software as the cause, with mitigation and a permanent fix undergoing safety testing.

The disruption added to ongoing resilience concerns after the September 8 NAS failure, with preliminary investigations noting fixes and enhanced recovery procedures, while airlines and officials call for stronger resilience and oversight of critical infrastructure.

Authorities said they would provide more details once Prestwick operations return to normal and air traffic flow resumes.