Thousands of air passengers in the UK are facing disruption today after a failure in the air traffic control system.
Claims for business interruption are likely to result from the failure of an air traffic control computer which led to flights being suspended across the UK.
National Air Traffic Services (Nats) said safety had not been compromised, but that flights were grounded so air traffic controllers could concentrate their efforts on planes already in the air.
Nats' flight data processing system failed at around 6am for an hour. The air traffic control centre at West Drayton is now fully operational again and flights are resuming, said a report.
A Nats spokesman said the computer system was now fully operational, with the primary concern being making sure that aircrafts which needed to land could do so and to clear the delays.
He said the fault was thought to lie with the "flow of data" in the system. He said the system would not go down again.
According to the report, Transport Secretary Alistair Darling said the fault had been caused by an overnight computer upgrade on the West Drayton system.
