ML13322B276: Difference between revisions

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| number = ML13322B276
| number = ML13322B276
| issue date = 11/14/2013
| issue date = 11/14/2013
| title = Oconee Nuclear Station - 11/14/13 e-mail from B.Shingleton to R.Guzman PT Curves LAR Supplement 2 - ONS Unit 3 Lower Nozzle Belt Forging Reported in ANP-3127, Revision 2
| title = 11/14/13 e-mail from B.Shingleton to R.Guzman PT Curves LAR Supplement 2 - ONS Unit 3 Lower Nozzle Belt Forging Reported in ANP-3127, Revision 2
| author name = Shingleton B
| author name = Shingleton B
| author affiliation = Duke Energy Carolinas, LLC
| author affiliation = Duke Energy Carolinas, LLC

Revision as of 00:05, 4 April 2019

11/14/13 e-mail from B.Shingleton to R.Guzman PT Curves LAR Supplement 2 - ONS Unit 3 Lower Nozzle Belt Forging Reported in ANP-3127, Revision 2
ML13322B276
Person / Time
Site: Oconee Duke Energy icon.png
Issue date: 11/14/2013
From: Shingleton B
Duke Energy Carolinas
To: Guzman R V
Plant Licensing Branch II
Guzman R V
References
TAC MF0765
Download: ML13322B276 (2)


Text

From: Shingleton, Boyd <Boyd.Shingleton@duke-energy.com> Sent: Thursday, November 14, 2013 2:27 PM To: Guzman, Richard Cc: Whitaker, David E; Wasik, Christopher J

Subject:

ONS 54 EFPY PT Curves LAR Supplement 2 - ONS Unit 3 Lower Nozzle Belt forging reported in ANP-3127, Revision 2 came from a Certified Material Test Report (CMTR).

Rich, AREVA has advised that the new material data for the ONS Unit 3 Lower Nozzle Belt forging did not come from the CMTR provided by the Rotterdam Dockyard.

The new copper content for the ONS-3 Lower Nozzle Belt Forging (LNBF) comes from AREVA testing of an ONS-3 nozzle belt dropout remnant that contained LNBF material. The composition was determined via supplemental testing by AREVA in accordance with the AREVA QA program. The RTndt is determined by a Regulatory Guide 1.99 Revision 2 type statistical evaluation (mean/standard deviation) of data in the NRC's RVID2 database. The initial RT NDT and its uncertainty, , for the ONS-3 LNBF are estimated from a sample of A 508 Cl2 forgings specifically from the Rotterdam Dockyard. This provides a better estimate of the ONS-3 LNBF initial RT NDT than the previous values, which were estimated in accordance with Regulatory Guide 1.99, Revision 2 from a sample of materials from the same ASTM specification (A 508 Cl2) but without regard to supplier.

Boyd Shingleton From: Guzman, Richard [mailto:Richard.Guzman@nrc.gov

] Sent: Friday, November 08, 2013 6:40 PM To: Shingleton, Boyd Cc: Wasik, Christopher J; Patterson, Terry L; Guy, Robert H

Subject:

RE: ONS 54 EFPY PT Curves LAR Supplement 2

      • This is an EXTERNAL email. Exercise c aution. DO NOT open attachments or click links from unknown senders or unexpected email. ***

Boyd, In his review of Supplement 2, the technical reviewer requests the licensee to confirm that the new material data for the ONS Unit 3 Lower Nozzle Belt forging reported in ANP-3127, Revision 2 came from a Certified Material Test Report (CMTR). A response via email will suffice; if necessary, we can also have a phone call to discuss further.

Thanks,

Rich Guzman Sr. Project Manager NRR/DORL US NRC 301-415-1030

From: Shingleton, Boyd [mailto:Boyd.Shingleton@duke-energy.com

] Sent: Friday, October 25, 2013 5:32 PM To: Guzman, Richard Cc: Wasik, Christopher J; Patterson, Terry L; Guy, Robert H

Subject:

ONS 54 EFPY PT Curves LAR Supplement 2 Rich, Attached is the latest supplement to the PT curve LAR.

Boyd Shingleton Oconee Regulatory Affairs 864-873-4716