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Flight delays at Dublin airport Flight delays at Dublin airport
(30 minutes later)
Air traffic controllers at Dublin International Airport have closed the runways. Dublin International Airport is operating at half its usual capacity because of a problem with its radar system.
The airport is handling 12 departures and 12 arrivals an hour.
Earlier, all flights in and out of the airport were stopped. A similar problem a number of weeks ago led to major delays.
The Irish Aviation Authority took the decision after suffering chronic breakdowns of their radar screens.The Irish Aviation Authority took the decision after suffering chronic breakdowns of their radar screens.
The airport was shut down at about 1400 BST on Wednesday because air traffic controllers could not see the codes used to label incoming aircraft.The airport was shut down at about 1400 BST on Wednesday because air traffic controllers could not see the codes used to label incoming aircraft.
The decision has forced dozens of flights to be grounded, or diverted to other Irish airports.The decision has forced dozens of flights to be grounded, or diverted to other Irish airports.
IAA spokeswoman Lilian Cassin said the fault was first reported at 1145 BST on Wednesday and it was fully functioning 10 minutes later, but the system failed a second time.IAA spokeswoman Lilian Cassin said the fault was first reported at 1145 BST on Wednesday and it was fully functioning 10 minutes later, but the system failed a second time.
"When the fault happened a second time at 1330 BST, we didn't have the confidence to continue," she said."When the fault happened a second time at 1330 BST, we didn't have the confidence to continue," she said.
"Safety is our overriding concern and in the interest of safety we shut down the system from 1445 BST."Safety is our overriding concern and in the interest of safety we shut down the system from 1445 BST.
"We hope to have it back at 1500 BST but that will be reviewed.""We hope to have it back at 1500 BST but that will be reviewed."
Ms Cassin said air traffic controllers have experienced similar problems over the last four to five weeks, but that Wednesday's malfunction was the longest period the code system had failed.Ms Cassin said air traffic controllers have experienced similar problems over the last four to five weeks, but that Wednesday's malfunction was the longest period the code system had failed.
She revealed that IAA engineers were working on site, alongside a team from Thales - the French company which supplied the system - and Hewlett-Packard.She revealed that IAA engineers were working on site, alongside a team from Thales - the French company which supplied the system - and Hewlett-Packard.
"Engineers haven't been able to exactly pinpoint what the problem is," she added."Engineers haven't been able to exactly pinpoint what the problem is," she added.
"We want to be satisfied ourselves before we go back to operating.""We want to be satisfied ourselves before we go back to operating."