UK Air Traffic Chaos Blamed on Software Glitch, Government Orders Probe

A software defect in a small part of the National Airspace System (NAS) caused the widespread disruption to UK air traffic on September 8, according to a preliminary report by National Air Traffic Services (NATS).

The incident led to thousands of flights being canceled and affected hundreds of thousands of passengers.

Transport Secretary Heidi Alexander described the disruption as "completely unacceptable" and acknowledged the frustration experienced by passengers, airlines, and airports. "While I am pleased to see that the safety of passengers was protected, it's clear we need to urgently understand why this issue was not discovered and fixed before it caused chaos," Alexander stated.

In response to the findings, the government has tasked the Civil Aviation Authority (CAA) with conducting an independent review. This review will scrutinize NATS' findings, examine their investment plans for future resilience, and assess regulatory accountability.

Alexander emphasized the importance of ensuring the nation's infrastructure is future-ready, asserting that the government is committed to making the aviation sector as resilient as possible to prevent future disruptions. The report's findings indicate the issue stemmed from a software defect within the system that manages UK airspace.