THis morning: - The Apollo crew removed the walking plates at the dome flange. - Travis and I entered the chamber to resume EQ stop setting - Apollo craned the dome into place over the stack upstairs - Covered the QUAD with it's C3 cover when the Apollo crew removed all of the C3 covers above us (the dome flange was now hovering ~2ft above the flange) - Once the dome was mated to the flange and the "dust had settle for ~15 mins" we uncovered the QUAD and resumed prep work. - Performed peel of FirstContact of ITMy-HR, N2 filter blow, swab wipe dab-removal of some particulate (see a subsequent alog for details of this) - Removed most hardware and 2-step stool from chamber - Betsy left chamber, Thomas and Lisa entered - Travis, Thomas, Lisa swung ACB back into nominal position and removed stiffeneing hardware - - Broke a witness plate in the process so a quick cleanup and replacement of new witness plate in the same location - Took particle count samples from center of chamber - People swap again, Betsy in, Lisa/Thomas out - Removed balance of tools/hardware - Betsy/Travis removed internal Fiber Guards - Wiped floor from North-to-door, checking for tools/hardware - none found - Exited chamber - Leaned in and placed last 3 witness plates in center of chamber Door replacement preps are underway.