The first of the two flight data recorders is at the Russian Aerospace Force’s research facility near Moscow, where officials hope to get some insight into why the Tupolev Tu-154 plunged into the sea shortly after takeoff from Sochi on Sunday morning.
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The Defense Ministry has said there are probably no survivors.
Russia search teams recovered the second flight data recorder Wednesday, the state-run TASS news agency reported, citing the Defense Ministry.
But it could take two weeks or more just to extract data from the recorders, aviation expert Col. Gen. Pyotr Belonozhko told Russia’s state-run RIA Novosti.
“It all depends on the state of the black boxes,” he said.
The first flight data recorder was found 1,600 meters from the shore, at a depth of 17 meters, the ministry said in a statement.
Rescuers have been carrying out a massive search operation in the sea.
Those on board included 64 musicians from the army’s official choir, the Alexandrov Ensemble; nine reporters; the head of the Spravedlivaya Pomoshch charity, Elizaveta Glinka; two federal civil servants; and eight crew members.
The choir was flying to Syria to perform for Russian air force pilots during the holiday season, the Defense Ministry has said.
Glinka was taking medicine and other supplies to a local hospital in Syria, her colleague and friend Dr. Sergey Kurkov told CNN affiliate RBC.
The investigation and search
Terrorism was not a likely cause of the crash, Kremlin spokesman Dimitri Peskov said Monday.
Russian Transport Minister Maxim Sokolov said it was assumed the plane had crashed due to technical malfunction or pilot error.
The plane had taken off from Moscow and was headed to the Russian Hmeymim airbase in Latakia, Syria, where Russia has a large military presence. En route to Syria, the plane landed in Sochi to refuel.
Divers found the jet’s fuselage about a mile offshore in the sea at the depth of 27 meters, RIA Novosti reported.
Seventeen bodies and 150 pieces of debris have been recovered so far, the Itar-Tass news agency reported, citing a source in security agencies.
About 3,500 people are taking part in the search, while 39 ships and cutters, 135 divers, seven deep-water vehicles and several aircraft have been deployed.