shift of the AX-4 mission start due to problems with the Zvezda module

The decision to postpone the start was made in connection with the ongoing investigation regarding the Zvezda service module, which has recently undergone repairs. Joint activities of NASA and Russian Roskosmos are aimed at thorough understanding of the newly observed pressure signature in the stern module segment.

Start of the mission with Sławosz Uznański-Wiśniewski

The cosmonauts working on board the station have recently carried out detailed inspections of the internal surface of the Zvezda pressure module. As part of these activities, several additional areas were sealed that could be a source of problems, and the current level of leaks was measured. According to NASA, the segment currently maintains the pressure, which is a positive signal. However, as agency representatives emphasize, it is necessary to further examine the situation.