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Status Last EVA Drowning Incident?



 
 
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  #1  
Old February 8th 16, 10:20 PM posted to sci.space.policy
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Default Status Last EVA Drowning Incident?


A few weeks ago I heard in my local radio that an ISS EVA had to be
aborted because there again was water in the helmet. I found a report
that it was the same NASA suite that almost killed the Italian ESA
astronaut a year ago. This time they saw an unusual large water bubble
in the helmet and immediately aborted the EVA. But what was the
amount later found in the suite?

In the first incident they noted an unexpected amount of water in the
helmet and the astronaut went alone back in the station. But on the
way back it got much worse. The water went over his face, took his
visibility and cut the in and out radio link. Just with his hands
and a cool mind he found the way back.

The other astronaut later much regretted that he not went with his
ESA friend the way back. But nobody could vision then that it
could get such worse. This time they did know. How much water
went free? Was it a stuck sieve like last time? Was the root
cause of the last investigation still valid? It is a suite design
from the 1980s and should be known very well by now.

I wonder why so less is reported. Nothing here and I even saw nothing
on NASA Watch. But this is a serious issue.


## CrossPoint v3.12d R ##
  #2  
Old February 9th 16, 03:22 AM posted to sci.space.policy
Greg \(Strider\) Moore
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Posts: 752
Default Status Last EVA Drowning Incident?

wrote in message news


A few weeks ago I heard in my local radio that an ISS EVA had to be
aborted because there again was water in the helmet. I found a report
that it was the same NASA suite that almost killed the Italian ESA
astronaut a year ago. This time they saw an unusual large water bubble
in the helmet and immediately aborted the EVA. But what was the
amount later found in the suite?


I had not heard this.



In the first incident they noted an unexpected amount of water in the
helmet and the astronaut went alone back in the station. But on the
way back it got much worse. The water went over his face, took his
visibility and cut the in and out radio link. Just with his hands
and a cool mind he found the way back.

The other astronaut later much regretted that he not went with his
ESA friend the way back. But nobody could vision then that it
could get such worse. This time they did know. How much water
went free? Was it a stuck sieve like last time? Was the root
cause of the last investigation still valid? It is a suite design
from the 1980s and should be known very well by now.


This doesn't sound accurate. My understanding is that both astronauts
aborted the EVA and in fact the policy is to not close the outer airlock
door unless both astronauts are inside (in case something starts to happen
to the second astronaut).



I wonder why so less is reported. Nothing here and I even saw nothing
on NASA Watch. But this is a serious issue.


## CrossPoint v3.12d R ##


--
Greg D. Moore http://greenmountainsoftware.wordpress.com/
CEO QuiCR: Quick, Crowdsourced Responses. http://www.quicr.net

  #3  
Old February 9th 16, 04:29 PM posted to sci.space.policy
Bob Haller
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Posts: 3,197
Default Status Last EVA Drowning Incident?

it definetely occured again. it was on radio news not long ago.

they better firgure out exactly whats happeniing so we dont kill a astronaut....

by failing to understand o ring erosion...............

by failing to understand tile launch damage................
  #4  
Old February 9th 16, 06:56 PM posted to sci.space.policy
Jeff Findley[_6_]
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Posts: 2,307
Default Status Last EVA Drowning Incident?

In article ,
says...

wrote in message news


A few weeks ago I heard in my local radio that an ISS EVA had to be
aborted because there again was water in the helmet. I found a report
that it was the same NASA suite that almost killed the Italian ESA
astronaut a year ago. This time they saw an unusual large water bubble
in the helmet and immediately aborted the EVA. But what was the
amount later found in the suite?


I had not heard this.


There is now an absorbant pad in the US helmets. One astronaut reported
that the pad felt wet, so the EVA was aborted.

http://www.collectspace.com/news/new...lk-water-leak-
ends.html



In the first incident they noted an unexpected amount of water in the
helmet and the astronaut went alone back in the station. But on the
way back it got much worse. The water went over his face, took his
visibility and cut the in and out radio link. Just with his hands
and a cool mind he found the way back.

The other astronaut later much regretted that he not went with his
ESA friend the way back. But nobody could vision then that it
could get such worse. This time they did know. How much water
went free? Was it a stuck sieve like last time? Was the root
cause of the last investigation still valid? It is a suite design
from the 1980s and should be known very well by now.


This doesn't sound accurate. My understanding is that both astronauts
aborted the EVA and in fact the policy is to not close the outer airlock
door unless both astronauts are inside (in case something starts to happen
to the second astronaut).


Agreed. When NASA ends an EVA, both astronauts head back to the airlock
together.

I wonder why so less is reported. Nothing here and I even saw nothing
on NASA Watch. But this is a serious issue.


You're kidding right? It was "all over" the news, IMHO.

US news outlets
http://www.usnews.com/news/science/n...01-15/britain-
gets-1st-spacewalker-station-power-grid-needs-fixed

http://www.cbsnews.com/news/helmet-l...-end-to-space-
station-outing/

http://www.houstonchronicle.com/news...tain-gets-1st-
spacewalker-station-power-grid-6761067.php

http://www.popularmechanics.com/spac...ronaut-helmet-
flooded/

http://news.discovery.com/space/spac...ak-cuts-short-
spacewalk-160115.htm


UK news outlets
http://www.bbc.com/news/science-environment-35328281

https://www.theguardian.com/science/.../15/tim-peake-
spacewalk-iss-first-time-live

http://www.telegraph.co.uk/news/scie...229/Tim-Peake-
spacewalk-LIVE-Britains-first-official-astronaut-takes-toothbrush-in-
case-of-emergency.html

http://www.dailymail.co.uk/sciencete.../Just-popping-
walk-Tim-Peake-prepares-make-historic-spacewalk-repair-faulty-power-
unit-space-station.html

http://metro.co.uk/2016/01/15/watch-...-on-his-first-
iss-space-walk-5625061/

http://www.wired.co.uk/news/archive/...m-peake-watch-
spacewalk-live


"space" news outlets:
http://spaceflightnow.com/2016/01/15...inated-due-to-
spacesuit-water-leak/

http://www.space.com/31635-water-lea...-helmet-halts-
spacewalk.html

http://www.spaceflightinsider.com/mi...k-ended-early-
after-water-found-in-helmet/

http://www.nasaspaceflight.com/2016/...power-channel-
first-spacewalk-uk/

http://www.spacepolicyonline.com/new...another-water-
intrusion-into-spacesuit-during-eva

etc. etc. etc...

Jeff
--
All opinions posted by me on Usenet News are mine, and mine alone.
These posts do not reflect the opinions of my family, friends,
employer, or any organization that I am a member of.
  #5  
Old February 10th 16, 01:06 PM posted to sci.space.policy
Greg \(Strider\) Moore
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Posts: 752
Default Status Last EVA Drowning Incident?

"Fred J. McCall" wrote in message
...

bob haller wrote:


it definetely occured again. it was on radio news not long ago.



Bob, I'm sorry, but based on your historical performance when it comes
to remembering things and getting them right, I doubt anyone is going
to accept what you 'heard'.

All that being said, there was apparently some very minor water
accumulation (15 milliliters) AFTER (not during) a 6 hour space walk
back a year ago.


http://www.space.com/31635-water-lea...spacewalk.html
This was a month ago, not a year ago and occurred during a spacewalk, not
after.



they better firgure out exactly whats happeniing so we dont kill a
astronaut....


http://www.nasa.gov/sites/default/fi...n_Report.p df



--
Greg D. Moore http://greenmountainsoftware.wordpress.com/
CEO QuiCR: Quick, Crowdsourced Responses. http://www.quicr.net

  #6  
Old February 11th 16, 09:45 PM posted to sci.space.policy
[email protected]
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Posts: 224
Default Status Last EVA Drowning Incident?



it definetely occured again. it was on radio news not long ago.



Bob, I'm sorry, but based on your historical performance when it comes
to remembering things and getting them right, I doubt anyone is going
to accept what you 'heard'.


But I heard it too


All that being said, there was apparently some very minor water
accumulation (15 milliliters) AFTER (not during) a 6 hour space walk
back a year ago.


This was the second incident a month ago. Lot of news reported that
they collected only the 15 ml after the walk. Thats a double spin
by NASA. First, it accumulated during the walk. He saw it at the visor
what was the first indication that something was wrong again.

But more important: This was only the free water. They had installed
a diaper in the helmet, the Helmet Absorption Pad, HAP. Depending
on the size of the HAP (nowhere mentioned) it can take a lot of water.

As he saw the free water he noted that the HAP was swollen. They
have not water detector in the helmet! They have to relay on eyes
and feeling. Finaly he felt that his back was damp and the HAP too.
The final size or mass of the HAP was nowhere mentioned. So it
could be that the water spill was of the same size (1 to 1.5 liters)
like in summer 2013. They know, but the public is left in the dark.

The idea of the HAP was good. But it has a dangerous side effect.
The astronauts usually give their full attention to their very demanding
EVA job. The HAP could prevent them from any early sense of the water
spill. But once the HAP is full the drowing spill could go faster
then in 2013 because the mailfunction has longer established itself
(is more permanent). And the way back to the airlock was 30 minutes
this time! They are in urgent need for a water sensor.



they better firgure out exactly whats happeniing so we dont kill a
astronaut....


http://www.nasa.gov/sites/default/fi...sion_Mishap_In
vestigation_Report.pdf


Yes Fred, but what about to read those stuff by yourself before suggesting
it to others?


--
"Ignorance is preferable to error, and he is less remote from the
truth who believes nothing than he who believes what is wrong."
-- Thomas Jefferson


## CrossPoint v3.12d R ##
  #7  
Old February 11th 16, 10:16 PM posted to sci.space.policy
[email protected]
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Posts: 224
Default Status Last EVA Drowning Incident?



I wonder why so less is reported. Nothing here and I even saw nothing
on NASA Watch. But this is a serious issue.


You're kidding right? It was "all over" the news, IMHO.


You are kidding: I wrote I got it from my radio. So the big News services
did their job well. But I want to know more.

This is the most serious manned spaceflight incident since the first
drowning in summer 2013 at EVA23. And that was the most serious since
the loss of Columbia.

This one at the same suit suggests that NASA failed to find the
root cause of the 2013 incident. That I see as serious as the 2013
event itself.

The main problem for us here is the lack good news feeds. I only
got it by chance in local radio. Neither NASAWatch nor usenet had
it. In my daily news feed I can not consume heavy space info just
in the hope to catch such extraordinary events. Some others here
only got it by my posting. Jeff, how got you it?


We need to get a good feed. To begin I checked the "space" news
outlets you mentioned:

http://www.nasaspaceflight.com/2016/...-spacewalk-uk/
too much on normal work and only very few on the incident, a NASA PR site

http://www.spaceflightinsider.com/mi...und-in-helmet/
ok, not mentioned same suit

http://www.space.com/31635-water-lea...spacewalk.html
ok:
"I could definitely tell the sides were swollen," Kopra said after
getting back to the space station, referring to the water-absorbing
pad inside his helmet. "The first time I noticed it was probably just
about the same time that I saw the water start to come down from the
top, and it was fairly noticeable. The difference between nominal and
what I initially felt was pretty small."
...
Before noticing the leak, Kopra had also reported a higher-than-normal
carbon dioxide reading, which was traced to a faulty sensor in his
spacesuit


http://www.spacepolicyonline.com/new...uit-during-eva
not bad, introduces other sources too


http://spaceflightnow.com/2016/01/15...it-water-leak/
ok, seems he found out it was the same suit:
As it turns out, the spacesuit worn by Timothy Kopra Friday is the same
suit ù serial number 3011 ù worn by European Space Agency astronaut
Luca Parmitano during the frightening July 2013 EVA, NASA officials said

The suit was extensively modified in the wake of that incident and used
successfully as recently as Dec. 21. ItÆs not yet known if the cause
of the leak Kopra experienced Friday was related in any way to the much
more serious problem faced by Parmitano, but extensive troubleshooting
is expected to pin down what went wrong this time around.
...
A few minutes later, Kopra managed to move he head enough to taste
the water, saying it was ôcoldö and that the bubble was about a
half-inch wide and two or three inches long. One other wild card on
the table: a carbon dioxide sensor in KopraÆs suit failed earlier,
although itÆs not yet known whether that was related to the leak.
...
During the spacewalk by Parmitano and Cassidy on July 16, 2013, water
backed up into ParmitanoÆs helmet, quickly obscuring his vision and
expanding around his head. He made it back to the stationÆs airlock,
but it was a life-threatening malfunction.

In the wake of that incident, NASA carried out extensive troubleshooting
and eventually blamed the water backup on a clogged filter in the
suitÆs water cooling system. Refurbished components were launched to the
station, including a refurbished fan-separator module for the backpack
of the suit worn by Parmitano and Kopra.

So the suit was never on the ground but just this replaced module.
As the module may not the root cause, it could be the electrical power
system of the suit. Some voltage spike could damage the module. Have
the suits power monitoring / recording systems?

Some may think I put too much interest on this none lethal and
even none life threatening event. But NASA had the mailfunctioned
module. They have the stuff to find the root cause why it happened.
If they did not find it in the module they should have inquired further.
Imagine that would be a Mars mission!



## CrossPoint v3.12d R ##
  #8  
Old February 12th 16, 12:42 AM posted to sci.space.policy
Bob Haller
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Posts: 3,197
Default Status Last EVA Drowning Incident?




they better firgure out exactly whats happeniing so we dont kill a
astronaut....


http://www.nasa.gov/sites/default/fi...sion_Mishap_In
vestigation_Report.pdf

404 The cosmic object you are looking for has disappeared beyond the event horizon.
 




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