In addition, a lot of EVA classes: familiarization with high-fidelity hardware, decompression sickness response, ammonia contamination response and some time under water. Terry and I had two suited runs at the Neutral Buoyancy Facility. In the first one we simulated replacing the end-effector of the robotic arm, in the second one we worked on the Flex Hose Rotary Coupler (FHRC), a unit that allows transfer of ammonia from the stationary truss to the rotating radiators. The FHRC is one of the most challenging units to replace during a spacewalk. In fact, the full replacement would likely take four EVAs. In the pool we only practiced EVA number 3, the retrieval of the spare unit and its installation, which involves mating many challenging electrical and fluid connectors inside the truss. This was also our official EVA evaluation run and we both passed!
In the picture you can see a class I had today. It’s part of series of events in which we review the schematics of the EMU suit and then we go through a number of malfunction scenarios. The instructor can input any failure in the simulator and we get the corresponding signatures on the display of the Display and Control Unit (DCM), which is attached on the chest area of the real suit. During a nominal EVA you would hardly have any need to touch the DCM while outside of the airlock, but that would change quickly if the suit had any kind of failure, hence these opportunities to really get familiar with the malfunction responses and all the displays and controls on the DCM.
(Trad IT) Traduzione in italiano a cura di +AstronautiNEWS qui:
https://www.astronautinews.it/tag/logbook/
(Trad ES) Tradducción en español aquí:
https://www.intervidia.com/category/bitacora/
(Trad FR) Traduction en français par +Anne Cpamoa ici:
https://spacetux.org/cpamoa/category/traductions/logbook-samantha/
28/03/2014