A boat of Russian Emergencies Ministry is seen near a pier, as rescue personnel conduct a search after a Russian military Tu-154 plane crashed into the Black Sea on its way to Syria on Sunday, in the Black Sea resort city of Sochi, Russia, December 26, 2016.REUTERS/Maxim Shemetov
Russia has found the main flight recorder from a military plane that crashed into the Black Sea killing all 92 on board, the Defence Ministry said on Tuesday, amid unconfirmed reports that authorities had grounded all aircraft of the same type.
The recorder, one of several reported to be on board, contains information that could help investigators identify the cause of Sunday's crash, which killed dozens of Red Army Choir singers and dancers en route to Syria to entertain Russian troops in the run-up to the New Year.
Investigators have so far said that pilot error or a technical fault, rather than terrorism, are most likely to have caused the Defence Ministry's Tupolev-154 to crash into the sea.
The black box, which was found by a remote-controlled underwater vehicle at a depth of around 55ft (17 metres) and 1 mile (1,600 metres) from the resort of Sochi, has been sent to a Defence Ministry facility in Moscow for analysis.
"The casing holding the flight recorder is in a satisfactory condition," the ministry said in a statement.
"After it is technically cleaned in distilled water we will start transcribing it."
The ministry said numerous fragments of the plane had been found, including the engine, the landing gear and pieces of the fuselage.
The Interfax news agency cited an unnamed source as saying Russia had grounded all TU-154 planes until the cause of Sunday's crash became clear. There was no official confirmation of that.
The Defence Ministry says the downed jet, a Soviet-era plane built in 1983, had last been serviced in September and underwent more major repairs in December 2014.
Russian pilots say the TU-154 is still flight worthy, though major Russian commercial airlines have long since replaced it with Western-built planes. Experts say only two are registered with Russian passenger airlines with the rest registered to various government ministries.
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