According to investigators, the second black box — the Cockpit Voice Recorder (CVR) — was partially damaged.
"On the day of the crash, two flight recorders — voice and parametric — were found and transported to Cairo. Yesterday, transcription work began on these flight recorders, the first data has been obtained," Sokolov said at a government meeting.
On October 31, an Airbus A321 operated by Russian airline Kogalymavia, crashed in Egypt’s Sinai Peninsula. All 224 people on board were killed in what has become the largest civil aviation disaster in Russian and Soviet history.
On Tuesday, a spokesman for the Egyptian government said the preparation of a report based on data recovered from the crashed aircraft's flight data recorders would take between one and four weeks.