The technical failure that led to a whole bunch of flight cancellations and extreme disruptions for hundreds of individuals touring out and in of in Britain final week resulted from a “one in 15 million probability,” the nation’s air site visitors management service stated on Wednesday.
“We now have processed 15 million flight plans with this technique,” Martin Rolfe, the chief government of Britain’s Nationwide Air Visitors Service, instructed the BBC’s “At present” program. And the service, he stated, had “by no means seen this earlier than.”
On Wednesday, the service printed a report based mostly on an inner investigation of the occasion, detailing what Mr. Rolfe described as “an extremely uncommon set of circumstances.”
In accordance with the report, the air site visitors management system encountered two separate items of navigational knowledge in a single plane’s flight plan that had the identical title. Consequently, the system’s main and backup laptop techniques each shut right down to keep away from passing incorrect data to the controllers.