kyle.ryan@LIGO.ORG - posted 07:12, Wednesday 14 November 2018 (45270)
~0650 hrs. local -> Resumed attended pumping of Y-end
I valved-in the BSC10 AIP that had been isolated whilst the remaining portion of the annulus piping had been vented for the door removal. Upon doing so, the turbos spun down as the AIP isolation valve must have leaked -> a lot!