Roskosmos found among the contractors a scammer who made low-quality parts for missiles ” Soyuz-2 “. This became known RIA Novosti from a source in the rocket and space industry.
The reason for the check was a defective valve found in the Soyuz-ST rocket at the Kuru cosmodrome. The part was replaced, and the start on December 2 was successful. However, at the same time, it was decided to check all the blocks of the first stages of the Soyuz-2 missiles, which are in storage and are preparing for launch.
As a result, defective parts were found in seven “Unions”. The delivery of a batch of valves for engines of the first stages of rocket turned out to be of poor quality. Based on the results of the check, a specific batch, a shift and a master were identified who made a defect in the production of valves in 2016.
At the moment, all low-quality parts have been replaced with serviceable ones. As the source said, the check made it possible to prevent possible emergencies.