(CNN) EgyptAir Flight 804's cockpit voice recorder indicates there was an attempt to put out a fire on the plane before it crashed into the Mediterranean Sea, a senior source from the airline told CNN Tuesday. The cockpit voice recorder captures sounds from the flight deck, including flight crew conversation, alarms and background noise that can help investigators understand what the flight crew was doing. The source confirmed the recordings from the cockpit voice recorder are in line with data extracted from other devices recovered from the wreckage, which have indicated the presence of smoke in the plane's avionics system and lavatory. French investigators were working to repair the voice recorder's damaged memory chipThe plane crashed May 19 with 56 passengers and 10 crew members aboard. But authorities haven't revealed details about what can be heard in the recording.

Source: CNN July 05, 2016 16:52 UTC