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NASA supports Roscosmos version of Soyuz-FG booster incident

November 19, 13:24 UTC+3 MOSCOW

A Soyuz-FG carrier rocket with a manned Soyuz MS-10 spacecraft blasted off from Baikonur Cosmodrome to the International Space Station on October 11

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© Sergei Bobylev/TASS

MOSCOW, November 19. /TASS/. The results of a NASA probe into the abortive launch of the Soyuz-FG booster on October 11 confirm the findings by the Russian Roscosmos space corporation.

NASA’s internal probe has been completed. "It supports the Roscosmos version. Small differences, but in general we agreed," William Gerstenmaier, Associate Administrator for Human Exploration and Operations for NASA, told a conference in Moscow marking International Space Station’s 20 years in orbit.

A Soyuz-FG carrier rocket with a manned Soyuz MS-10 spacecraft blasted off from Kazakhstan’s Baikonur Cosmodrome to the International Space Station (ISS) on October 11. On board the spacecraft were Russian cosmonaut Alexei Ovchinin (the commander of the Soyuz MS-10) and NASA astronaut Nick Hague.

Following a smooth liftoff, the Soyuz’s booster malfunctioned between the first and second stages of separating, whereupon the crew was forced to abort the flight and switch to ballistic descent. The manned Soyuz MS-10 spacecraft ended up landing safely in the Kazakh steppe.

This is the first emergency landing with this type of carrier rocket over the past 35 years.

NASA astronaut Nick Hague, who returned to Moscow from the Baikonur spaceport on October 12 after the Soyuz booster’s failure, flew to the United States on October 13.

The Soyuz-FG booster incident occurred after a sensor that signals the separation of the first and second stages was deformed during the rocket’s assembly at the Baikonur Cosmodrome, Head of the Emergency Commission, Deputy Director of the Central Research Institute of Machine-Building (TsNIImash) Oleg Skorobogatov said on October 1.

"The nozzle lid of the oxidizer tank in the block D did not open as a sensor of the stages’ separation was deformed (a 6-degree bend) during the assembly of the ‘package’ at the Baikonur Cosmodrome, which was the cause of the off-nominal separation," Skorobogatov said.

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