Overview
- A long‑running air leak in the Zvezda service module’s PrK transfer tunnel prompted NASA to direct affected crew into the docked SpaceX Crew Dragon as a safe‑haven during repair work.
- Roscosmos began an extended repair effort but suspended active work to collect more data, and NASA then ordered the crew back out of the Crew Dragon to resume normal station operations.
- Multiple outlets reported that the measured rate of air loss recently rose from about 0.5 kg per day to roughly 1 kg per day, a figure attributed to an unnamed official and still under investigation.
- The shelter‑in‑place precaution on Friday included instructions for the Crew‑12 astronauts and NASA’s Chris Williams to don pressurized suits so they could evacuate rapidly if conditions worsened.
- The PrK tunnel problem dates to at least 2019 and involves decades‑old hardware in Zvezda; agencies will keep the station in active monitoring while they analyze measurements and plan any further repairs.