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#160
by
makims
on 18 Dec, 2007 11:45
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When they enter into fast fill for LH2?
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#161
by
DaveS
on 18 Dec, 2007 11:49
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makims - 18/12/2007 1:45 PM
When they enter into fast fill for LH2?
Shortly after the ECO sensors go "WET".
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#162
by
Chris Bergin
on 18 Dec, 2007 11:49
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Ok....L2 feed: All four LH2s went wet, as scheduled.
Now we start the drumroll for the SIM test.
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#163
by
shuttlefan
on 18 Dec, 2007 11:59
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So in terms of the countdown today will it count down to T-3hrs. and stay holding there for the duration of the test or will they count all the way down to T-9min. or perhaps even T-31 seconds?
And if they go down that far will the access arm and the beanie cap be retracted?
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#164
by
Ford Mustang
on 18 Dec, 2007 12:08
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Not a lot of variety with these shots! Oh well, this is only a test.
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#165
by
Chris Bergin
on 18 Dec, 2007 12:08
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Sensors behaving so far at 5 percent. LH2 5 percent is WET.
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#166
by
shuttlefan
on 18 Dec, 2007 12:10
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Into fast-fill on both tanks now.
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#167
by
Chris Bergin
on 18 Dec, 2007 12:11
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Here we go. SIM Test.
All as planned by going DRY on command. No failures yet!
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#168
by
Chris Bergin
on 18 Dec, 2007 12:14
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LH2 Sensors 2 and 3 playing up, but not failed yet.
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#169
by
psloss
on 18 Dec, 2007 12:14
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George Diller says that LH2 ECO circuits #2 and #3 are "setting up to fail"...interesting, since I believe the #2 circuit was the only one that hadn't "failed" in the first two tankings.
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#170
by
Chris Bergin
on 18 Dec, 2007 12:17
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Appears to be voltage readings are heading out of family, but still within parameters. We'll get a technical note soon.
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#171
by
Chris Bergin
on 18 Dec, 2007 12:17
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psloss - 18/12/2007 1:14 PM
George Diller says that LH2 ECO circuits #2 and #3 are "setting up to fail"...interesting, since I believe the #2 circuit was the only one that hadn't "failed" in the first two tankings.
Yep. This is a new one with LH2 ECO #2.
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#172
by
Chris Bergin
on 18 Dec, 2007 12:19
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LH2 1 has failed. Open Circuit failure.
LH2 2 and 3 are ok at the moment.
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#173
by
psloss
on 18 Dec, 2007 12:22
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George Diller reporting the same thing...says that the LH2 console hasn't made that official call yet...says the #2 circuit has been intermittent...
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#174
by
Martin FL
on 18 Dec, 2007 12:22
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psloss - 18/12/2007 7:22 AM
George Diller reporting the same thing...says that the LH2 console hasn't made that official call yet...says the #2 circuit has been intermittent...
Chris is getting the info faster than Diller.
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#175
by
psloss
on 18 Dec, 2007 12:23
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George Diller also saying that the #2 circuit intermittent behavior is somewhat of a surprise.
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#176
by
psloss
on 18 Dec, 2007 12:23
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Martin FL - 18/12/2007 8:22 AM
Chris is getting the info faster than Diller.
That's nominal.
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#177
by
psloss
on 18 Dec, 2007 12:24
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Now "officially" confirmed the #1 circuit "open" failure...
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#178
by
psloss
on 18 Dec, 2007 12:28
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As noted, the open circuit failure is what they wanted for doing the troubleshooting after stable replenish. And perhaps the intermittent behavior on other circuits, if it remains that way, will provide some additional contrast...
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#179
by
avollhar
on 18 Dec, 2007 12:29
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This really looks like they will be able to track down the problem and fix it once and for all! Just imagine if the four ECO sensors would work today as designed.. nothing is worse than an intermittent failure which vaporizes, when you pull out your magnifying glass.
