Space

August 31, 2018
 

ISS crew repairs leak

ISS
The International Space Station’s cabin pressure is holding steady after the Expedition 56 crew conducted repair work on one of two Russian Soyuz spacecraft attached to the complex.

The repair was made to address a leak that had caused a minor reduction of station pressure.

After a morning of investigations, the crew reported that the leak was isolated to a hole about two millimeters in diameter in the orbital compartment, or upper section, of the Soyuz MS-09 spacecraft attached to the Rassvet module of the Russian segment of the station.

Flight controllers at their respective Mission Control centers in Houston and Moscow worked together with the crew to effect a repair option in which Soyuz commander Sergey Prokopyev of Roscosmos used epoxy on a gauze wipe to plug the hole identified as the leak source. As the teams were discussing options, flight controllers in Moscow performed a partial increase of the station’s atmosphere using the ISS Progress 70 cargo ship’s oxygen supply. Flight controllers in Houston are continuing to monitor station’s cabin pressure in the wake of the repair.

Meanwhile, Roscosmos has convened a commission to conduct further analysis of the possible cause of the leak.

Throughout the day, the crew was never in any danger, and was told no further action was contemplated for the remainder of the day. Flight controllers will monitor the pressure trends overnight.

All station systems are stable and the crew is planning to return to its regular schedule of work Aug. 31.




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