Originally Posted by
piper mohawk
It is a 'rumour network' so my guesses are:
1. Software update which hasn't gone through the agreed change control process, or
2. Third party hosting provider outage, or
3. Hardware issue at a 'single point of failure', or
4. Undetected software bug.
All mitigatable given adequate resources.
A software update was certainly the cause of one outage; system wasn't 'dumping' FPL data and was overloading the system by randomly re-using 'old' flight plans; don't ask me how, I'm useless at computers.
NATS went over to electronic flight progress strips some years ago (about 2014 I think) however they do have paper strips as backup.