Late entry.
Thursday of last week I replaced the leaky valve reported on aLOG 75980 with FRS ticket 30556, I then allowed for the parts/joints to dry and settle over the weekend. Then on Tuesday, 2/11/25, the purge air system was turned on to pressurize and leak test the system. No leaks were found. The purge air system ran for about 3 hours, the system checked out good and now we are closing the above mentioned FRS ticket.
BTW, I took a dew point measurement at the input mode cleaner purge port area, reading was -40.5 oC.