NASA investigating small air leak on International Space Station

space,com ^ | 20 August 2020 | Elizabeth Howell

[BenLurkin]

NASA is tracking down the source of a minor air leak on the International Space Station.

Crewmembers of the station's current Expedition 63 are in no immediate danger and will spend the weekend in the orbiting laboratory's Russian segment, inside the Zvezda service module, NASA officials said in an update today (Aug. 20).

Astronauts can work in a shirtsleeve environment inside the station, but the orbiting lab is never completely airtight; a little bit of air always leaks over time, requiring routine repressurization from nitrogen tanks that are sent up during cargo missions, NASA added in the update.

This leak was first spotted in September 2019, when there were "indications of a slight increase above the standard air leak rate," NASA said in the statement. "Because of routine station operations like spacewalks and spacecraft arrivals and departures, it took time to gather enough data to characterize those measurements. That rate has slightly increased, so the teams are working a plan to isolate, identify and potentially repair the source."

While the leak rate is higher than usual, it is still within specifications for the station and poses no immediate danger to the crew, NASA officials emphasized. Astronauts also deal with leak simulations during training for their stays on the space station, which typically are about six months long.

NASA astronaut Chris Cassidy and his Russian cosmonaut crewmates, Ivan Vagner and Anatoly Ivanishin, will stay in the Russian Zvezda service module from Friday night to Monday morning (Aug. 21 to Aug. 24).

[Ozark Tom]

Have drill-bit—will travel...

[Ozark Tom]

Better than:

https://www.ecohome.net/guides/3364/aerobarrier-home-air-sealing-spray/

[octex]

Next launch to refurbish supplies on the space station should include a carton of Flex Seal Paste.