ML102950550
| ML102950550 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 04/13/2010 |
| From: | Sabisch A NRC/RGN-II |
| To: | Conte R NRC Region 1 |
| References | |
| FOIA/PA-2010-0334 | |
| Download: ML102950550 (3) | |
Text
Conte, Richard From,:
Sabisch, Andrewvb?
Sent:
Tuesday, April 13, 2010 11:12 AM To:
Conte, Richard
Subject:
RE: AFW Buried Piping Issue at Oconee?
The piping here at Oconee is in fact safety-related and resulted in the SSF being declared inoperable while repairs were being performed. The leak itself was fairly small but the analysis showed considerable degradation in the area of the leak; i.e., thinning in the surrounding wall.
From: Conte, Richard Sent: Tuesday, April 13, 2010 9:52 AM To: Brown, Michael; Sabisch, Andrew; OHara, Timothy Cc: King, Mark; Lupold, Timothy; Casto, Greg; Hardies, Robert; Cline, Leonard; Burritt, Arthur
Subject:
RE: AFW Buried Piping Issue at Oconee?
Andrew if you don't mind me asking?
Outside of Scope We are trying to find out if Salem is was the worst case in term of actually effecting operability of a safety related system buried.
Outside of Scope Salem seems to be challenging this statement but there is a Finite Element Analysis that may support or deny this statement - more to come.
From: Brown, Michael Sent: Tuesday, April 13, 2010 8:57 AM To: Conte, Richard Cc: King, Mark
Subject:
FW: AFW Buried Piping Issue at Oconee?
Here you go Rich, Outside of Scope b",
Salem - Below min wall thickess Outside of Scope Let me know your thoughts.
Mike InJfonenlon In this record was deleted in a8o0TIMnce wIth the Freedom of lnfonnmaon Act.
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Outside of Scope
Andy Andrew T. Sabisch'h U.S. Nuclear Regulatory Commission Senior Resident *nspector Oconee Nuclear Station ::
7812B Rochester High, Lna 29672
,Q864-885-300 1 / (C5()= 6
.From: Brown, Michael
?
K Sent: Monday, April 12, 4:33 PMW..4.
To: Baritey, Jonathan; Ra*pp, Curtis;.Sabisch Andrew; Riggs, Eric
Subject:
AFW:Buri ied Piping Issue at Oconee?
Jonathan et al, My name is Mike Brown and I work in the OpE Branch in HQ. Salem Unit 1 recently discovered that substantial portions. of their AFW piping that is buried had deg raded to less than.required minimum wall thickness.
During the conference call, one of the participants mentioned that they thought Oconeebhad, a similar issue sometime in the past. I've searched all the OpE I can find and have not Iodated anything.
Are you aware of any issues at Oconee where their AFW piping that is buried (or any other safety. related piping tt is buried had degraded to less than minimum wall thickness?
Any help is appreciated. I wouldn't waste time researching this. I just was interested to know if you are aware of anything on this issue.
Thanks,.
Mike Mike Brown Reactor Systems Engineer NRR/DIRS/IOEB
-email michael.brown@nrc.gov.
phone - 301-4154096 cel!lT-(b)(6) offi cd - u-* I r-I 3