Orbital module... Oh Photo from Russian social networks.
Roscosmos. Meeting of the emergency commission10/20/2018 4:53 pmA regular meeting of the emergency commission on an emergency situation that occurred on October 11, 2018 during the launch of the Soyuz-FG launch vehicle with a manned transport vehicle Soyuz MS-10 was held at the leading research institute of the rocket and space industry of Russia - TsNImash.After listening to the reports of specialists working on the investigation of the causes of the emergency situation, the members of the emergency commission, after a detailed analysis, approved a preliminary report on the causes of the accident and began to prepare recommendations to exclude similar situations in the future. The final report and the list of recommendations to the enterprises of the rocket and space industry will be approved on October 30, 2018 and presented to the chairman of the State Commission for Flight Testing of Manned Space Systems.
MOSCOW, October 20 - RIA News. The assemblers at Baikonur forcefully connected the side block of the Soyuz-FG rocket to the central unit, bent one of the mounting lugs and put the lubricant inwards so that it would come out when divided in flight, a rocket and space industry source familiar with the investigation told RIA Novosti.According to him, on the thrust bearing - a special recess on the central unit of the second stage - there are two grooves on the sides, on the spherical bearing of the side unit of the first stage - two projections, and on the front part - a stem, which is clamped when placed in the thrust bearing.“When it opens, a signal goes to the pyro lock opening the jet nozzle cover of the oxidizer tank to divert the side unit from the central unit. Assemblers during installation, when they connected the steps to the“ bag ”(four blocks of the first and second steps. - Ed.) the left ledge slightly bent, he didn’t immediately enter the groove - and he was driven out with force. When the step fell on him with the whole mass, the ledges, in fact, stood in a strut. interlocutor of the agency.Thus, due to the bent protrusion, the ball bearing of the side unit could not easily get out of the thrust bearing and rammed the central unit during the flight, and then, at the exit, the stem sensor still worked and the valve opened, but by that time an emergency situation had occurred he explained.According to the source, at the meeting of the emergency commission at the Progress Rocket and Space Center in Samara, the issue of production culture was raised, but experts said that such deviations from the technological documentation of the rocket assembly occur from time to time.A source earlier said that the Roskosmos commission and the investigating authorities identified possible perpetrators of damage to one of the sensors of the Soyuz-FG launch vehicle and the state commission is inclined to the version of the "accidental departure from the documentation" by collectors at Baikonur.Today, the state commission must sign the final results of the investigation and present them to the head of Roskosmos, Dmitry Rogozin, and the public will be informed about them early next week, RIA Novosti was told in a state corporation.
On Wednesday, the executive director of Roskosmos, Sergei Krikalev, said that in 1986 (the Soyuz-U booster rocket was being launched) a similar situation occurred: the first stage hit the second stage, as a result of which the flight stopped.
Ruptly is live from Korolyov, Moscow Region on Thursday, November 1, as the Russian state commission presents its findings to the cause of the Soyuz rocket booster failure.On October 11, the Soyuz MS-10 spacecraft was forced to perform emergency landing in Kazakh steppe after the rocket’s booster failed less than two minutes after the launch from Baikonur Cosmodrome in Kazakhstan.
