Germanwings pilot 'rehearsed' descent on another flight that morning

The co-pilot on Germanwings Flight 4525 tried a controlled descent on another flight that morning, French air accident investigators have said.

The BEA investigation agency said in a report released today that co-pilot Andreas Lubitz repeatedly set the plane into a descent, then brought it back up again on a flight on the same A320 jet from Dusseldorf to Barcelona.