Tens of thousands of holidaymakers were hit by the meltdown last Monday (28 August), the knock-on effects of which are continuing to impact some people’s return from the bank holiday getaway more than a week later.
In its report to the CAA, Nats said it had traced the issue to a flight plan processing sub-system, whereby one single flight plan – which included two identically named but separate waypoint markers outside UK airspace – caused the glitch, described by Nats as an "extremely rare set of circumstances".
