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Flight chaos caused by software defect, says air traffic control body

Flight chaos caused by software defect, says air traffic control body

Summary

The UK's National Air Traffic Services (Nats) said a software defect caused a system failure that disrupted thousands of flights earlier this month. This problem led to flight cancellations and major travel delays at several big UK airports.

Key Facts

  • Over 2,000 flights were canceled due to the Nats system failure.
  • Hundreds of thousands of passengers were affected by delays and cancellations.
  • Main UK airports impacted included Heathrow, Gatwick, Luton, and Glasgow.
  • The issue was caused by a software defect in the system managing UK airspace.
  • The defect happened very quickly, within a millisecond, and caused corrupted data.
  • Air traffic controllers had less information and put limits on flights to keep safety.
  • The government ruled out a cyber attack as the cause.
  • The Ministry of Defence denied that a military aircraft caused the problem.
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