Andreas Lubitz repeatedly set the altitude dial on the Airbus A320 to 100 feet while alone in the cockpit en route from Dusseldorf to Barcelona on March 24, investigators at French safety agency BEA announced. The captain returned to the cockpit and the flight landed normally in Spain.
Cockpit voice recordings show that Lubitz, 27, locked the captain out of the cockpit during a bathroom break on the return flight to Dusseldorf and descended it into a mountainside, killing himself and 149 others on board.
