Today, Travis, Jason and I finished extracting the ITMy lower QUAD structure. There was a small issue with the elevator controller unit in that it failed to lower all the way. We addressed this issue by swapping it with the controller from our second elevator setup (having backups is a VERY good thing). We also encountered some interference between the optic stop "fingers" and the arm, resulting in removing the fingers altogether and reseating the elevator on the QUAD. The QUAD was removed from the BSC repair arm and inserted into a lower structure storage container for it's flight back to the fiber welding cleanroom in the LVEA. Currently, it resides in the storage container in an anterior cleanroom awaiting disassembly and a decision on the path forward. Dale Ingram documented most of the extraction process by camera and his pictures/videos should somewhere sometime.