ML062130061

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Email: (PA) Additional AMR Questions
ML062130061
Person / Time
Site: Pilgrim
Issue date: 07/06/2006
From: Pavinich W
- No Known Affiliation
To: Jennifer Davis
Division of Regulatory Improvement Programs
References
%dam200612, TAC MC9669
Download: ML062130061 (4)


Text

I James Davis - Additional AMR questions Paae 1 1 From: <wapavinich @comcast.net>

To: Jim Davis <jad@nrc.gov>

Date: 07/06/2006 3:24:03 PM

Subject:

Additional AMR questions Jim, Attached are two additional AMR questions.

Wayne CC: Erach Patel <erachp@comcast.net>

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Subject:

Additional AMR questions Creation Date 07/06/2006 3:23:10 PM From: <wapavinich @comcast.net>

Created By: wapavinich @comcast.net Recipients nrc.gov OWGWPOO3.HQGWDO01 JAD (James Davis) comcast.net erachp CC (Erach Patel)

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.\temp\GW}.00002.TMP.Page2 James Davis - Additional AMR questions.wýpd Page 1 Additional AMR questions
1) The piping of the Reactor Core Isolation Cooling System is subject to flow accelerated corrosion. The PNPS LRA Table 3.2.1 ESF and Table 3.2.1 credit the plant-specific Periodic Surveillance and Preventive Maintenance Program for the management of wall thinning. The GALL report recommends using the Flow-Accelerated Corrosion Program, XI.M17, to manage wall thinning. The Periodic Surveillance and Preventive Maintenance Program provides for inspection for wall thinning every 5 years but no Monitoring and Trending activities to predict areas of high wall thinning rates or for trending of thinning as does XI.M 17. Please provide justification for not providing for monitoring a trending of wall thinning for RCIC piping.
2) In table 3.2.1 Item 18 of the PNPS LRA, it is stated that none of the ESF system components are not within the scope of the BWR Stress Corrosion Cracking Program.

Please provide the details that justify this statement.