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Software error causes UK air traffic outage and flight chaos

A software defect in the UK's air traffic control system corrupted data in a millisecond, leading to a six-hour outage and mass cancellations.

1 publisher · 1 article · first seen 18 Sept 2026 · updated 2d ago

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  1. Flight chaos for hundreds of thousands was caused in ‘millisecond’ by software error The Guardian Business ·

In this story

  • National Air Traffic Services
  • United Kingdom