Per FRS 38164, the unused viewport located at A1F1 and A2F1 on HAM7 have been removed and blanked off. These viewports are being moved to HAM3, so serial number, etc. will be recorded in a separate aLog.
The HAM3 A1F3 viewport was a coated ZV-800 which had many small scratches on the vacuum side of the window, we replaced this with the HAM7 Uncoated ZV-800 SN R136. The A1F4 viewport was a D1100999 High Quality viewport (O-ring sealed), it was determined that this port no longer needs the high quality viewport and was then swapped with the other removed viewport from HAM7 (ZV-800 Uncoated R134).
Per Betsy, both of these ports are only used for views inside the chamber, so Uncoated viewports could be used to replace the two coated viewports which were removed.
The viewports removed from HAM3 will be inspected on the bench and if they pass inspection criteria they will be put into spares inventory.
