In Russia have established the cause of the crash of the rocket Soyuz – media

В РФ установили причину аварии ракеты Союз - СМИ

Russia suspended manned rocket launches-media

The accident occurred due to the failure of the actuator: do not open the valve on the top of the side block of the first stage, a Commission established.

The cause of the accident, the manned Russian spacecraft Soyuz MS-10 was not triggered squib, which caused the failure drain-safety valve on the first stage of the emergency rocket Soyuz FG. On Friday, October 12, Interfax reported, citing a source familiar with the investigation.

“The Commission found that due to the failure of the actuator does not open the valve on the top of the side block of the first stage, resulting gases pressurization leaks out of the block and take the block from the second stage of the rocket,” – said the Agency interlocutor.

As a result, the emergency block of the first stage came into collision with the Central unit and damaged it.

Earlier it was reported that a malfunction of one of the valves caused the accident first stage of the rocket Soyuz-FG after launch.

“Previously, the state Commission found that the rocket was defective drain-safety valve of the oxidizer tank. When it is opened, flowing the gas takes the side of the unit from the Central unit but it was faulty and did not work,” the source said.

Meanwhile, before the start, he passed all stages of testing. “Before the start, he was open. Then, as expected, it was closed,” – said the Agency interlocutor.

He explained that after filling tanks of missiles through this valve reset excess oxygen. “A few minutes before starting it close. He was supposed to open after separating the side block for its withdrawal from Central, but this has not happened,” – said the source.

Recall that during the launch of manned spacecraft Soyuz from the Baikonur cosmodrome October 11, the accident occurred two minutes after liftoff, the separation of the side blocks of the first stage from the Central block of the second stage of the launch vehicle. Then triggered a distress beacon, the ship was divided into compartments and released the parachute.

The lander with the astronauts made an emergency landing on the territory of Kazakhstan. The crew – Roscosmos cosmonaut Alexei Ovchinin NASA astronaut Nick Hague – survived. They already got out of the capsule using the technique of PES-1, as cosmonaut and astronaut is assessed as satisfactory.


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