April 5th, 2011 – There are no really new issues, just old issues in a different form

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From: Sallev. MarlHenry
To: Tinkler. Charles; Stutzke. Martin; Marksberrv. Don
Cc: Correia, Richard; Sheron, Brian
Subject: FW: No really new issues
Date: Tuesday, April 05, 2011 5:23:46 PM
Attachments: IN 88-92,suopll.o2df -IN 88-92..odf

FYI – looks like we (NRC) looked at issues with boot seals around the SFP gate before.


From: Qualls, Phil
Sent: Tuesday, April 05, 2011 4:56 PM
To: Brown, Eva; Salley, MarkHenry
Subject: FW: No really new issues

The precursors for the Japanese U4 SFP draindown IMO. All it take is loss of instrument air which will fairly quickly depressurize the air header thus the inflatable boot seal and not all that much time until the pool is drained to about a foot above the fuel. Wait about a day to heat up the remaining water and the U4 event occurs.

Sometimes the simple stuff that we did not pay enough attention to really bites us.


From: Melfi, Jim
Sent: Tuesday, April 05, 2011 3:25 PM
To: Qualls, Phil
Subject: No really new issues

There are no really new issues, just old issues in a different form.


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