I found this in the WSJ, some scary stuff here.
Prosecutor Description of Transcript of Final 30 Minutes of Flight
Start of the tapePilots speak in "normal, cheerful, courteous way" for around first 20 minutes of tape.Pilot briefs co-pilot for landing at Dusseldorf. The responses of co-pilot become terse.Pilot asks the co-pilot to take control of the aircraft.A chair can be heard sliding back and the noise of a door closing. It seems pilot left for "call of nature."A short moment later, co-pilot activates buttons on the flight monitoring system to begin descent. The input can only be made voluntarily.Pilot is heard asking several times via video-intercom to be let into cabin.Pilot knocks on cabin door. No response, but breathing can still be heard in the cabin.Marseille air traffic control is heard repeatedly attempting to contact the cabin.Air traffic control asks cabin to enter 7700 distress code into transponder. There is no response, and the plane takes priority over all others for emergency landing.Air traffic control asks other planes to try and contact the Germanwings plane by radio. No response.Alarms sound to signify proximity of ground and loud noises are heard, suggesting somebody trying to kick the door in.An impact is heard just before the final impact; likely plane hitting a bank before sliding into mountainside.No distress messages were sent at any moment. The co-pilot never responded.
Prosecutor Description of Transcript of Final 30 Minutes of Flight
Start of the tapePilots speak in "normal, cheerful, courteous way" for around first 20 minutes of tape.Pilot briefs co-pilot for landing at Dusseldorf. The responses of co-pilot become terse.Pilot asks the co-pilot to take control of the aircraft.A chair can be heard sliding back and the noise of a door closing. It seems pilot left for "call of nature."A short moment later, co-pilot activates buttons on the flight monitoring system to begin descent. The input can only be made voluntarily.Pilot is heard asking several times via video-intercom to be let into cabin.Pilot knocks on cabin door. No response, but breathing can still be heard in the cabin.Marseille air traffic control is heard repeatedly attempting to contact the cabin.Air traffic control asks cabin to enter 7700 distress code into transponder. There is no response, and the plane takes priority over all others for emergency landing.Air traffic control asks other planes to try and contact the Germanwings plane by radio. No response.Alarms sound to signify proximity of ground and loud noises are heard, suggesting somebody trying to kick the door in.An impact is heard just before the final impact; likely plane hitting a bank before sliding into mountainside.No distress messages were sent at any moment. The co-pilot never responded.
