Swanwick didn't 'go down' nor suffer a computer failure. The effect was probably the same though !! Amazing how some on this site have the temerity to criticise journos for getting it wrong when many in our own industry do exactly the same on a regular basis
From the NATS website:
At (0820) this morning, NATS identified a fault with the link between the Flight Data Processing System (FDPS) at West Drayton and the operations room at the London Area Control Centre at Swanwick. NATS engineers had restored the system by 0855.
At this stage, the cause of the fault is being investigated.
To maintain safety, NATS imposed some temporary restrictions on the number of aircraft entering UK airspace and those taking off from major UK airports. These are now being progressively lifted.
NATS wants to stress that safety standards have been maintained but regrets any inconvenience that may have caused to travellers.
More information will be published as soon as it becomes available.