We started the day in a meeting with the Apollo chamber cleaning crew to discuss the general BSC Cleaning Procedure and Hazard Analysis. Michael L. reiterated the stop work policy and answered questions about lock-out/tag-out, gate valves, nitrogen, and the possibility that the crew will need to work longer hours to help expedite the cleaning at BSC-8. We also looked at a checklist specific to BSC-8.

Since the dome and door came off yesterday, we were able to begin serious in-chamber work after lunch. Cheryl and Scott H. went into the chamber for a TCS fit check. While he was in, Scott took pix of the chamber for documentation purposes. Mark L. and Randy removed 2 viewports, an illuminator, and a camera. Zack, Chris, and Mick provided support for all these activities. 

A few noteworthy items:  
1. The OpLev laser was still energized when Cheryl and Scott entered the chamber. While not an eye hazard, it is disconcerting to find a bright red laser dot on someone's back or on your own tummy! We have added a step to the procedure to check this item prior to entering any BSC.
2. Cheryl noted that a nozzle that had housed a viewport had some very visible and easily removable debris (a streak on the pinkie finger of a glove) at the bottom of it. She and Scott H. looked at all the small nozzles for debris to see if there was a pattern of some kind. We'll investigate things further.
3. Randy and Mark noted that the upper stiffener and some other flat surfaces on the back side of the chamber exterior still had dust, etc. on them.  They encountered the issue while preparing to remove a camera and viewport. I asked the guys to work in a different location that wasn't problematic until I could talk to someone about the situation. I tried to check in with Michael but couldn't find him (Dr. appointments I think) so I asked Bubba to come out for a look. We agreed on mitigation (cover the flat surface below the port in question with foil). We will also add a step to the procedure for an actual vacuuming of the stiffeners, etc. before a BSC gets its first cleaning.
4. The space around BSC-8 is very restricted. The walkway along Y-arm in front of BSC-8 is a VERY BUSY place, especially with work going on at the test stands. With ICC cleanrooms in place, there is only a narrow passage (less than three feet) between the chamber cleanroom and the wall. We'll have to work on this.