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  • Space Station Leak May Have Been Caused by Human Error, Russian Reports

    From Internetado@21:1/5 to All on Wed Sep 5 18:03:07 2018
    A small leak detected last week in a Soyuz transport capsule
    temporarily docked to the International Space Station may have been
    caused by a human before the spacecraft launched, according to Russian
    reports. The Soyuz is the only spacecraft currently able to bring
    crewmembers to the space station, and it remains connected to the
    orbiting laboratory until they head home again. [...]

    https://www.space.com/41712-space-station-leak-human-error-russia-says.html?utm_source=sdc-newsletter&utm_medium=email&utm_campaign=20180905-sdc

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  • From Brian-Gaff@21:1/5 to Internetado on Sat Sep 15 10:52:56 2018
    I'd have thought though that if it was in the capsule, then it would have
    shown up while in the flight to the station.
    Unless of course the problem was some kind of seal at the docking point.
    Brian

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    "Internetado" <internetado@alt119.net.invalid> wrote in message news:pmp5op.jo.1@news.alt119.net...
    A small leak detected last week in a Soyuz transport capsule temporarily >docked to the International Space Station may have been caused by a human >before the spacecraft launched, according to Russian reports. The Soyuz is >the only spacecraft currently able to bring crewmembers to the space
    station, and it remains connected to the orbiting laboratory until they
    head home again. [...]

    https://www.space.com/41712-space-station-leak-human-error-russia-says.html?utm_source=sdc-newsletter&utm_medium=email&utm_campaign=20180905-sdc

    --
    Eduardo
    ----------
    Alt119 - Alternate News
    www.alt119.net - Art Culture Lusophony

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  • From Jeff Findley@21:1/5 to All on Sun Sep 16 09:08:56 2018
    In article <pnikpk$j6f$1@dont-email.me>, briang1@blueyonder.co.uk
    says...

    I'd have thought though that if it was in the capsule, then it would have shown up while in the flight to the station.
    Unless of course the problem was some kind of seal at the docking point.

    Speculation is that a worker accidentally drilled the hole then filled
    it with glue, or something similar. Thermal cycling, exposure to vacuum
    on one side, and the one atmosphere pressure load on the other
    eventually caused it to fail.

    The other theory that Russia has floated is that an astronaut drilled
    the hole while the Soyuz was docked to ISS. They have also floated the suggestion that an unplanned EVA be performed to cut back the insulation
    on the outside of the module to allow for inspection. I'm not sure how
    that would provide any useful data though.

    Jeff
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  • From Chris Jones@21:1/5 to Jeff Findley on Sun Sep 16 12:52:42 2018
    Jeff Findley <jfindley@cinci.nospam.rr.com> writes:

    [...]

    suggestion that an unplanned EVA be performed to cut back the insulation
    on the outside of the module to allow for inspection. I'm not sure how
    that would provide any useful data though.

    The idea is that if they find residue of a sealant near the hole, it had
    to be made on the ground.

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  • From Jeff Findley@21:1/5 to All on Sun Sep 16 19:10:37 2018
    In article <vriv5zz5l6zp.fsf@panix.com>, clj@panix.com says...

    Jeff Findley <jfindley@cinci.nospam.rr.com> writes:

    [...]

    suggestion that an unplanned EVA be performed to cut back the insulation
    on the outside of the module to allow for inspection. I'm not sure how that would provide any useful data though.

    The idea is that if they find residue of a sealant near the hole, it had
    to be made on the ground.

    That sounds reasonable. But the actual EVA would be difficult
    considering that doing delicate work in a pressure suit is extremely
    difficult. They might accidentally dislodge the residue they're looking
    for. Also, stuff literally floats away on EVAs, so absence of any
    sealant wouldn't necessarily be conclusive. So it might not prove
    useful to do such an EVA.

    If such an EVA were to be performed, it would be nice if it were done by
    one Russian and one American. Kind of like counting ballots requires representatives of major parties to be present.

    IMHO, of course.

    Jeff
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    All opinions posted by me on Usenet News are mine, and mine alone.
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