There is a time-line for Pump Module R&R for STS-116 (where the spare is stored on ESP2).
Will this EVA officially be classified as an Unplanned EVA or a Contingency EVA?If it is classed as a Contingency EVA, then this will be the first ever US Contingency EVA in history (excluding the whole STS-27 business).
Quote from: AnalogMan on 08/01/2010 06:39 pmThere is a time-line for Pump Module R&R for STS-116 (where the spare is stored on ESP2).Question is how closely that timeline fits the current situation. The PAO reports hint that it could take more than one EVA to do everything, and it may be that there are different setup / cleanup steps now, compared to the plan for 12A.1.
As usual, the great info on this site sparks even more questions.STS-116 did not include transport of ESP2--it arrived on ISS aboard STS-114. I wonder why STS-116 had the procs for replacement?
Quote from: PahTo on 08/01/2010 07:26 pmAs usual, the great info on this site sparks even more questions.STS-116 did not include transport of ESP2--it arrived on ISS aboard STS-114. I wonder why STS-116 had the procs for replacement?As noted last night in this thread, STS-121 brought up a spare that was moved to the ESP during one of the mission EVAs.The 12A.1 mission (STS-116) activated the primary thermal control system. Prior to that, an "early" system was being used. The pump modules were critical path for activating each loop for the first time on that mission; if the pumps didn't activate successfully, they wanted to be ready to switch them out immediately.
If the other loop were to be lost before this one is restored, what are the implications? Can the Russian segment continue to support crew independently?
Quote from: JimO on 08/01/2010 12:45 pmCan replacement spares for the pump be brought up, in the future, without shuttle missions? Specifically, would such equipment fit on the HTV external rack?Yes, Pump Modules can fit on the HTV EP (Exposed Pallet).
Can replacement spares for the pump be brought up, in the future, without shuttle missions? Specifically, would such equipment fit on the HTV external rack?
Is there a way to return a damaged pump module for analysis without Shuttle?
Quote from: Lee Jay on 08/01/2010 09:20 pmIs there a way to return a damaged pump module for analysis without Shuttle?Answer to this should be obvious.
Regardless, I think they have a few opportunities over the next few flights to get it down for analysis.