Officials said Thursday that the crash of Germanwings Flight 9525 appears to be a deliberate act by a co-pilot who locked himself in the cockpit and flew the plane into a mountain. All 150 people aboard were killed when the jet crashed into the French Alps on Tuesday. Here’s everything we know so far about the unfolding tragedy: What exactly happened on the day of the flight? Germanwings Flight 9525, an Airbus A320, departed Barcelona en route to Dusseldorf on Tuesday morning.