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UK flight delays to continue due to phone glitch UK flight delays to continue due to phone glitch
(35 minutes later)
A telephone glitch that caused hundreds of flights to be delayed will not be fixed before 1800 GMT, air traffic controllers have said.A telephone glitch that caused hundreds of flights to be delayed will not be fixed before 1800 GMT, air traffic controllers have said.
Thousands of passengers are stranded in UK airports after the National Air Traffic Service (Nats) internal phone system broke down.Thousands of passengers are stranded in UK airports after the National Air Traffic Service (Nats) internal phone system broke down.
Ryanair has called on the aviation regulator to intervene to prevent further disruption.Ryanair has called on the aviation regulator to intervene to prevent further disruption.
Affected airports include Heathrow, Gatwick Stansted, Cardiff, and Glasgow. Affected airports include Heathrow, Gatwick, Stansted, Cardiff and Glasgow.
A passenger who said he had been waiting five hours at London's Gatwick airport said people were "crying, distraught and angry".A passenger who said he had been waiting five hours at London's Gatwick airport said people were "crying, distraught and angry".
"One passenger has missed their sister's wedding," Tom Flatman, from Brighton, told the BBC."One passenger has missed their sister's wedding," Tom Flatman, from Brighton, told the BBC.
By midday, air traffic controllers had dealt with 1,700 flights rather than the usual 2,000 on a normal Saturday.By midday, air traffic controllers had dealt with 1,700 flights rather than the usual 2,000 on a normal Saturday.
Heathrow had cancelled 60 flights by 09:45 GMT, with these split between arrivals and departures.Heathrow had cancelled 60 flights by 09:45 GMT, with these split between arrivals and departures.
Ryanair has 100 flights affected to and from the south of England, with 10 flights cancelled. It called on the Civil Aviation Authority to act.Ryanair has 100 flights affected to and from the south of England, with 10 flights cancelled. It called on the Civil Aviation Authority to act.
"While we acknowledge problems can occur, where is the contingency? It's simply not good enough and the CAA needs to act now," it said in a statement."While we acknowledge problems can occur, where is the contingency? It's simply not good enough and the CAA needs to act now," it said in a statement.
Meanwhile:Meanwhile:
Nats said the problem at its Swanwick centre, in Hampshire, arose in the early hours of Saturday morning when the night-time operation failed to properly switch over to the daytime system.Nats said the problem at its Swanwick centre, in Hampshire, arose in the early hours of Saturday morning when the night-time operation failed to properly switch over to the daytime system.
"Because of the problem with the internal telephone system, it was not possible to open the additional control positions this morning, resulting in a significant reduction in capacity in some areas of UK en-route airspace," a spokeswoman said."Because of the problem with the internal telephone system, it was not possible to open the additional control positions this morning, resulting in a significant reduction in capacity in some areas of UK en-route airspace," a spokeswoman said.
"Safety has not been compromised at any time.""Safety has not been compromised at any time."
It said the problem should be fixed by between 1800 GMT and 1900 GMT but delays are likely to continue later.It said the problem should be fixed by between 1800 GMT and 1900 GMT but delays are likely to continue later.
Operations director Juliet Kennedy told the BBC she did not think the problem had happened before.Operations director Juliet Kennedy told the BBC she did not think the problem had happened before.
The BBC's transport correspondent Richard Westcott said it was a totally different issue to a software problem that hit the control centre in summer.The BBC's transport correspondent Richard Westcott said it was a totally different issue to a software problem that hit the control centre in summer.
The Nats spokeswoman added: "We now understand what the problem is and our engineers are working hard to rectify the issues as quickly as possible.The Nats spokeswoman added: "We now understand what the problem is and our engineers are working hard to rectify the issues as quickly as possible.
"Everyone in our operation is continuing to work closely with our customers to manage the traffic and clear the backlog.""Everyone in our operation is continuing to work closely with our customers to manage the traffic and clear the backlog."
'Shambolic''Shambolic'
Belfast, Edinburgh, Manchester, Birmingham, Southampton, Luton, London City, Newcastle, Exeter and Bournemouth are among other airports that have reported delays, asking passengers to check with their airlines.Belfast, Edinburgh, Manchester, Birmingham, Southampton, Luton, London City, Newcastle, Exeter and Bournemouth are among other airports that have reported delays, asking passengers to check with their airlines.
Stansted Airport said flights were subject to delays, while Gatwick said 20% of its departures had been delayed, with passengers being warned they may have to wait for "a couple of hours".Stansted Airport said flights were subject to delays, while Gatwick said 20% of its departures had been delayed, with passengers being warned they may have to wait for "a couple of hours".
Travel reporter Simon Calder said there were "lots and lots of delays" at Stansted, while Heathrow Airport had "long delays" of up to 40 minutes in departures.Travel reporter Simon Calder said there were "lots and lots of delays" at Stansted, while Heathrow Airport had "long delays" of up to 40 minutes in departures.
At Stansted, Alena Kontza's has been stuck on a Ryanair plane that has been delayed for three hours. She told the BBC passengers had been given "absolutely no information" and "it had been nothing less than shambolic".At Stansted, Alena Kontza's has been stuck on a Ryanair plane that has been delayed for three hours. She told the BBC passengers had been given "absolutely no information" and "it had been nothing less than shambolic".
"People are really aggravated, children are crying, people want to leave, people want to change to different planes, it's an absolute nightmare," she said."People are really aggravated, children are crying, people want to leave, people want to change to different planes, it's an absolute nightmare," she said.
'Backlog of planes''Backlog of planes'
Independent aviation analyst Chris Yates said it was going to be a "day of frustrations".Independent aviation analyst Chris Yates said it was going to be a "day of frustrations".
He said that passengers due to arrive at UK airports from overseas could find themselves diverted elsewhere.He said that passengers due to arrive at UK airports from overseas could find themselves diverted elsewhere.
"But it's going to be a long wait for them. When the system kicks back in and starts working, there will be a backlog of flights."But it's going to be a long wait for them. When the system kicks back in and starts working, there will be a backlog of flights.
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