The straits of Gibraltar
Standing down working on DA for now, going to let the ground work over the issue
Quote from: Ronsmytheiii on 03/22/2009 04:42 pmStanding down working on DA for now, going to let the ground work over the issueDo you know what the call is? Same as before, a possible stuck valve creating a restriction?
Quote from: AnalogMan on 03/22/2009 01:27 pmQuote from: wjbarnett on 03/22/2009 01:19 pmQuote from: AnalogMan on 03/22/2009 01:12 pmDefinitely planning for a bit UCCAS pin intimidation tomorrow looking at the additional tools being gathered • Hammer A/L crewlock- Staging Bag, fish stringer#1, Hook #7• Cheater bar A/L crewlock- Staging Bag, fish stringer#1, Hook #6• Prybar A/L crewlock- Staging Bag, fish stringer#2, Hook #4• Russian Hammer (still working on permission to use this)• Bolt puller Airlock Toolbox #1 zenith door• GP Cutters Airlock Toolbox #2 nadir doorOk, now I'm confused by this aggressive set of tools, as well as by the MSB yesterday (ie talk of cutting the pin handle). It would seem that they could more simply reverse the UPPAS deploy procedure, backing out to the point where the pin was put in "upside down" (I think was at most 45 mins), verses the greater effort/time involved in hitting/prying/cutting (assuming it takes all that). Perhaps the procedure had some irreversible step...?I was wondering that too. Since they were able to engage the release latch after they inserted the pin into the storage location, it seems logical that they would have been able to disengage it there and then if they had immediately spotted their error.But as you say, with the repositioning of SARJ braces and UCCAS yokes, and deployment to the detent position this appears to have blocked the release latch, and perhaps reversing all this work would be a major effort (or maybe not even possible).As far as I understand this, they "just" need to rotate the handle (with the pin) some degrees to get it into an attitude where it will be possible to open it. I guess with the right tool, getting enough force on the handle to move it, it will be a fairly quick thing to do. Probably faster then undoing all the steps they completed yesterday. But since they assigned 2 hours 25 minutes to the UCCAS task on EVA three, compared to 1 hour for nominal PAS deploy, they seem to have pretty good margins if it should be more complicated then thought.
Quote from: wjbarnett on 03/22/2009 01:19 pmQuote from: AnalogMan on 03/22/2009 01:12 pmDefinitely planning for a bit UCCAS pin intimidation tomorrow looking at the additional tools being gathered • Hammer A/L crewlock- Staging Bag, fish stringer#1, Hook #7• Cheater bar A/L crewlock- Staging Bag, fish stringer#1, Hook #6• Prybar A/L crewlock- Staging Bag, fish stringer#2, Hook #4• Russian Hammer (still working on permission to use this)• Bolt puller Airlock Toolbox #1 zenith door• GP Cutters Airlock Toolbox #2 nadir doorOk, now I'm confused by this aggressive set of tools, as well as by the MSB yesterday (ie talk of cutting the pin handle). It would seem that they could more simply reverse the UPPAS deploy procedure, backing out to the point where the pin was put in "upside down" (I think was at most 45 mins), verses the greater effort/time involved in hitting/prying/cutting (assuming it takes all that). Perhaps the procedure had some irreversible step...?I was wondering that too. Since they were able to engage the release latch after they inserted the pin into the storage location, it seems logical that they would have been able to disengage it there and then if they had immediately spotted their error.But as you say, with the repositioning of SARJ braces and UCCAS yokes, and deployment to the detent position this appears to have blocked the release latch, and perhaps reversing all this work would be a major effort (or maybe not even possible).
Quote from: AnalogMan on 03/22/2009 01:12 pmDefinitely planning for a bit UCCAS pin intimidation tomorrow looking at the additional tools being gathered • Hammer A/L crewlock- Staging Bag, fish stringer#1, Hook #7• Cheater bar A/L crewlock- Staging Bag, fish stringer#1, Hook #6• Prybar A/L crewlock- Staging Bag, fish stringer#2, Hook #4• Russian Hammer (still working on permission to use this)• Bolt puller Airlock Toolbox #1 zenith door• GP Cutters Airlock Toolbox #2 nadir doorOk, now I'm confused by this aggressive set of tools, as well as by the MSB yesterday (ie talk of cutting the pin handle). It would seem that they could more simply reverse the UPPAS deploy procedure, backing out to the point where the pin was put in "upside down" (I think was at most 45 mins), verses the greater effort/time involved in hitting/prying/cutting (assuming it takes all that). Perhaps the procedure had some irreversible step...?
Definitely planning for a bit UCCAS pin intimidation tomorrow looking at the additional tools being gathered • Hammer A/L crewlock- Staging Bag, fish stringer#1, Hook #7• Cheater bar A/L crewlock- Staging Bag, fish stringer#1, Hook #6• Prybar A/L crewlock- Staging Bag, fish stringer#2, Hook #4• Russian Hammer (still working on permission to use this)• Bolt puller Airlock Toolbox #1 zenith door• GP Cutters Airlock Toolbox #2 nadir door
Quote from: robertross on 03/22/2009 04:51 pmQuote from: Ronsmytheiii on 03/22/2009 04:42 pmStanding down working on DA for now, going to let the ground work over the issueDo you know what the call is? Same as before, a possible stuck valve creating a restriction?Space Station Urine Processor Assembly Work Terminatedhttp://www.nasa.gov/mission_pages/shuttle/main/rss_feed_above_snip_collection_archive_1.htmlAstronauts aboard the International Space Station and engineers in Mission Control, Houston, are evaluating an issue with the Urine Processor Assembly (UPA). The rate of urine flowing into the UPA is slower than expected. This issue is not related to the newly-installed Distillation Assembly. Mission Control has decided to end troubleshooting the UPA for today.
UPA troubleshooting efforts have resumed with a R&R of the Recycle Filter Tank Assembly(RFTA).
It's good they've got an eye on it for a DAM. It's those "late notice" threats where things get really sporty.
