Confirmed: As a result of its investigation into the problems during a June 9, 2016 launch, Roscosmos has now grounded its Proton rocket for at least the next six months due to the discovery of systemic quality control problems throughout the entire Proton construction process.
On January 23, the Kazakh-based division of the Interfax news agency reported the likelihood of an unusually lengthy delay with Proton missions, which could last several months. A day later, the Kommersant newspaper reported that a recent firing test had revealed technical problems with RD-0210 and RD-0212 engines, which propel the second and third stage of the Proton rocket respectively. The failure of the engine was reportedly traced to illegal replacement of precious heat-resistant alloys within the engine’s components with less expensive but failure-prone materials. The report in the Kommersant echoed the results of the investigation into the 2015 Proton failure, which found that low-quality material in the turbo-pump shaft of the engine had led to the accident.
On Jan. 20, 2017, Head of Roskosmos Igor Komarov chaired a meeting of the top managers at the Voronezh Mechanical Plant, VMZ, which manufactures rocket engines, including those used on the third stage of the Soyuz rocket and on the second and third stages of Proton. The high-profile meeting followed a decision to return already manufactured RD-0110 engines from Soyuz rockets back to Voronezh, after such an engine had been suspected as the culprit in the loss of the Progress MS-04 cargo ship on Dec. 1, 2016, as it ascended to orbit onboard a Soyuz-U rocket. [emphasis mine]
The worst part of this story, from an American perspective, is that it might result in a complete grounding of Russia’s entire rocket fleet, since some of these issues involve the Soyuz rocket as well. All manned flights to ISS will stop, which might force us to abandon it for a time.
Read the article. It suggests that Russia’s space industry is now in big big trouble.
Update: The Russians are replacing the entire Soyuz capsule that they had planned to use for the March manned mission to ISS.
“Spaceship No. 734 may be replaced by spacecraft No. 735 over a leak in the descent module [of the 734th space vehicle]. This is not yet known for sure. The spacecraft will be returned for a check,” the source said.
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