The main concern discussed was the air leak in the Zvezda Service Module PrK, which had previously been determined to have 'no immediate impact on crew safety or ISS operations,' but which has ...
The Russian Zvezda module and its Progress docking ... astronauts close the hatch to the Russian side of the ISS whenever the PrK tunnel is in use. If NASA is proven correct and the leaks ...
NASA and Roscosmos continue to disagree on the cause and severity of an air leak in the Russian segment of the International Space Station, one that NASA worries could lead to a “catastrophic ...