Shutdown wbdiff SNF 2008-02-23 21:46:30: Corroded thermocouple

mtang at mtang at
Sat Feb 23 21:46:33 PST 2008

Robin observed a blackened thermocouple in one of the hot pots.  This is now considered possibly contaminated and is shutdown until it can be replaced and the hot pot decontaminated.  In the meantime, she is starting decontamination procedures on wbsilicide, which will be used as pre-diffusion clean until Jim or one of the other maintenance crew can replace the TC on Monday.  Apologies for the inconvenience.

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