Flight chaos for hundreds of thousands was caused in ‘millisecond’ by software error

Error first occurred at 10am but major incident was not declared until 12.

30pm, says report A software defect in part of the UK’s air traffic control system corrupted flight data “in the space of a millisecond”, leading to a six-hour outage and mass airline cancellations and delays across the UK last week, National Air Traffic Services has said. But ministers said the Nats report into the incident still left…