ExPRESS Rack (ER) 5 Payload Isolation: On August 23rd, the ER5 Subsystem Valve was removed and replaced (R&R’d) after a Japanese Experiment Module (JEM) Moderate Temperature Loop (MTL) leak had been isolated to ER5. Earlier today, the crew disconnected the supply and return lines to the Space Automated Bioproduct Laboratory (SABL) and Plant Habitat facilities …