On 18 September 2026, UK air traffic control operator NATS released preliminary findings blaming a millisecond-level software defect for the cancellation of over 2,000 flights the previous week. The single software glitch caused cascading system failures across British airspace.
No BS check run yet — press ⚖ to extract this story's claims and verify them against independent sources.
UK air traffic controller blames a millisecond-software glitch for flight cancellations AP News
A preliminary report has blamed a software defect for the cancellation of over 2,000 flights in the United Kingdom last week.
A preliminary report on Friday blamed a millisecond-software defect for the cancellation of over 2,000 flights in and out of the United Kingdom last week. NATS, formerly known as National Air Traffic Services, said on Friday that the glitch on September 8 was behind the mayhem at British airports and beyond, rather than any human failings – as many had speculated at the time. It said a software de