First of all, thank you to AC for posting the most sensible response (to date) on here about what the actual problem was. Those who are interested further would be well advised to check out the ATC forums at www.pprune.org.
However, given that the fault almost certainly appears to be due to the transfer of Scottish ATC Mil traffic down to Swanwick, there are 2 questions that come to mind:
1) Why did the testing not pick up this fault;
2) What was the fix that allowed them to transfer to "day" mode not implemented sooner?
I appreciate there are perfectly good answers to these two questions. However, I'd still like to know what they are.
Biting the hand that feeds IT
