flight

A single flight from Los Angeles to Paris triggered the failure on Monday 28 August, the CAA report confirmed.

The air traffic control system had previously processed more than 15 million flight plans without the scenario being seen.

An engineer's password problem hampered efforts to resolve Bank Holiday airport chaos caused by a flight data fault, a report has said.

Air traffic control systems handling the flight were confused by a duplicate code - DVL - representing both Deauville in France and Devil's Lake in North Dakota, USA.

It was understood the flight was paid for by his own funds, not through his foundation.