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Reports until 19:20, Monday 14 October 2019
LHO VE
chandra.romel@LIGO.ORG - posted 19:20, Monday 14 October 2019 - last comment - 14:56, Tuesday 15 October 2019(52471)
HAM12 door removed

{Bubba, Tyler, Chris, Chandra}

Removed the north door on HAM12 and currently storing on door hanger. We temporarily covered the HAM flange with a C3 soft cover. Plan to cap the septum plate with the three blanks that Gerardo found today. We will leave HAM12 stored up to air with C3 covers in place of doors. Meanwhile Bubba ordered 92.25" shipping covers for HAM11 to preserve HAM 7,8,9,10 vacuum surfaces in dry air.

This HAM12 door has some sratches along outer o-ring seal surface. Scratches are not new; we suspected an outer o-ring leak somewhere in HAM 11, 12 based on annulus ion pump behavior. Stoning technique may smooth them out.

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corey.gray@LIGO.ORG - 14:56, Tuesday 15 October 2019 (52488)VE

Additional photos here.

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