ML11293A430

Lr - FW: Summary of Issue Related to Rv Flange Leak Detection Line

ML11293A430
Person / Time
Site:	Davis Besse
Issue date:	09/12/2011
From:	Office of Nuclear Reactor Regulation
To:	Division of License Renewal
References
Download: ML11293A430 (2)

Text

Davis-BesseNPEm Resource From: CuadradoDeJesus, Samuel Sent: Monday, September 12, 2011 1:28 PM To: 'custerc@firstenergycorp.com'; dorts@firstenergycorp.com Cc: Davis-BesseHearingFile Resource

Subject:

FW: Summary of Issue Related to RV Flange Leak Detection Line Cliff:

Below is a summary of the new topic well be discussing tomorrow.

From: Poehler, Jeffrey Sent: Monday, September 12, 2011 1:22 PM To: CuadradoDeJesus, Samuel Cc: Cheruvenki, Ganesh; Fairbanks, Carolyn; Sydnor, Christopher

Subject:

Summary of Issue Related to RV Flange Leak Detection Line

Sam, The issue we discussed this morning is that there does not seem to be a line item in Table 3.1.2-1 for the reactor vessel flange leakage detection nozzle/penetration. Most PWR reactor vessels have a nickel-alloy penetration through the reactor vessel closure flange that connects to stainless steel small bore piping going to the instrument such as a pressure transmitter. Management of aging effects of such a penetration (specifically cracking) would logically fall under the Nickel-Alloy Management Program.

There is a line item for stainless steel piping associated with the flange leakage detector, which is addressed in LRA Section 3.1.2.2.7.1 and is associated with LRA Table 3.1.1 item 3.1.1-23, in LRA Table 3.1.2-3, but doesnt cover any nickel alloy portion.

Is there a nickel-alloy penetration for the reactor vessel flange leakage detection piping that was accidently omitted from the LRA and does the LRA need to be amended to address?

Jeffrey C. Poehler Sr. Materials Engineer NRR/DCI/CVIB (301) 415-8353 1

Hearing Identifier: Davis_BesseLicenseRenewal_Saf_NonPublic Email Number: 1469 Mail Envelope Properties (377CB97DD54F0F4FAAC7E9FD88BCA6D0804FC137FA)

Subject:

FW: Summary of Issue Related to RV Flange Leak Detection Line Sent Date: 9/12/2011 1:27:51 PM Received Date: 9/12/2011 1:27:53 PM From: CuadradoDeJesus, Samuel Created By: Samuel.CuadradoDeJesus@nrc.gov Recipients:

"Davis-BesseHearingFile Resource" <Davis-BesseHearingFile.Resource@nrc.gov>

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"'custerc@firstenergycorp.com'" <custerc@firstenergycorp.com>

Tracking Status: None "dorts@firstenergycorp.com" <dorts@firstenergycorp.com>

Tracking Status: None Post Office: HQCLSTR01.nrc.gov Files Size Date & Time MESSAGE 1415 9/12/2011 1:27:53 PM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

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