ML030990313
| ML030990313 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png (DPR-028) |
| Issue date: | 04/01/2003 |
| From: | Wanczyk R Entergy Nuclear Operations, Entergy Nuclear Vermont Yankee |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| BVY 03-28 | |
| Download: ML030990313 (3) | |
Text
En tergy Entergy Nuclear Vermont Yankee, LLC Entergy Nuclear Operations, Inc.
185 Old Ferry Road Brattleboro, VT 05302-0500 April 1, 2003 BVY 03-28 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555
Subject:
Vermont Yankee Nuclear Power Station License No. DPR-28 (Docket No. 50-271)
Fourth-Interval Inservice Inspection Program Plan, Fourth-Interval Inservice Inspection Pressure Test Program and Request for Approval of ISI Relief Requests Vermont Yankee Nuclear Power Station (VY) has revised the Inservice Inspection (1S1) Program and Pressure Test Program as required by 10CFR50.55a(g)(4)(ii) for the fourth 10-year interval starting September 1, 2003.
This submittal dockets VY's ISI Program Procedure (PP 7015) and requests NRC approval of the identified ISI relief requests. The ISI Program is broken down into five major sections:
ISI Program Procedure, which is an upper tier document, Appendix A to PP7015 contains a detailed discussion of each of the relief requests, Appendix B documents the Selection and Bases Tables, Appendix C contains the Examination and Schedule Tables, and Appendix D contains the Calibration Block Index.
It is noted that the attached program incorporates alternative inspection and examination requirements for components governed by certain Code Cases as outlined in Draft Regulatory Guide DG-1091 (Proposed Revision 13 of Regulatory Guide 1.147) published in December 2001. The specific code cases utilized are identified on page 4 and 5 of the Program Procedure.
A summary of the relief requests associated with the ISI Program Plan and any precedent is contained belowv. Detailed discussion of each of the relief requests is contained in Appendix A of PP 7015.
ISI-02 Use of Code Case N-560 as an alternative The relief granted for VY's Third Interval is still to ASME Section Xl, Category B-J for applicable for the Fourth Interval. The use of risk-Examination of Piping Welds.
informed methodology for selection of components for examination embodies VY's philosophy for Class I piping inspection.
ISI-03 Use of Code Case N-652 as an alternative Code Case N-652 has been approved by ASME to ASME Section XI, Categories B-G-1, but has not yet been included in the most recent B-G-2, and C-D for Examination of listing of code cases provided in Revision 12 to Bolting.
fAUA
BVY 03-28 ISI-04 Use of N-663 as an alternative to ASME The use of this ASME approved Code Case is Section Xl, Class 1, Categories B-F, C-F-I similar to the request submitted by the Entergy and C-F-2 for Surface Examinations.
South Licensees.
ISI-05 Alternative Requirements to ASME This proposed alternative is essentially identical Section Xl, Appendix Vill, Supplement 10 to the model provided by EPRI on their for Examination of Dissimilar Metal Performance Demonstration Initiative.
IS1-07 Use of BWRVIP-75 as an alternative to The relief granted for VY's Third Interval is still GL 88-01 for Frequency of Overlay applicable for the Fourth Interval. BWRVIP-75, Examinations.
published in October 1999, and the NRC's Safety Evaluation of BWRVIP-75 are still the current applicable guidance documents for inspection of structurally overlaid components.
ISI-08 Use of RMS for Grading Purposes as an This proposed alternative is derived from the alternative to ASME Section XI, Appendix model provided by EPRI on their Performance VIII, Supplement 4, Paragraph 3.2.c for Demonstration Initiative.
Examination of RPV Shell Welds.
ISI-09 Use of Code Case N-613 as an alternative This proposed alternative is essentially identical to ASME Section Xl, Appendix VIII, to the model provided by EPRI on their Supplement 7 for Examination of RPV Performance Demonstration Initiative.
Nozzle-to-Shell Welds.
ISI-10 Alternative Requirements to ASME This proposed alternative is essentially identical Section Xi, Appendix VilI, Supplement 11 to the model provided by EPRI on their for Examination of Overlaid Piping.
Performance Demonstration Initiative.
ISI-1 1 Use of Appendix Vil of ASME Section The NRC has granted similar relief to several Xi, as modified by 10CFR50.55a(b)(2), for other Licensees as described in the particular Examination of RPV Flange-to-Shell relief request.
Weld.
A summary of the relief request and precedent associated with the ISI Pressure Test Program is contained below. A more detailed discussion of this relief request is contained in Appendix A of PP 7034.
PT-i Use of a system leakage test in lieu of the The requested alternative is similar to ASME Class 3 "Interval" hydrostatic test.
approved Code Case N-498-1 which is contained within Regulatory Guide 1.147 Revision 12.
This request also similar to VY's Third Inservice IInspection Interval approved relief request P-3.
The ISI Program Plan, Pressure Test Program and the remainder of VY'sSection XI programs utilize the ASME Section Xl, 1998 Edition with 2000 Addenda.
Accordingly, this letter requests NRC acceptance for these programs to be based upon the aforementioned Edition / Addenda.
Attachment I identifies the commitments contained within this letter. Attachment 2 contains the ISI Program Plan. Attachment 3 contains the ISI Pressure Test Program.
VY requests timely NRC review and approval of the ISI Relief Requests in order to support implementation of the new program.
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1iVY 03-28 If you have any questions on this transmittal, please contact Mr. Thomas B. Silko at (802) 2584146.
Si ecr Robert Wan Director, NucIe
'afety1
au Attachments cc:
USNRC Region I Administrator USNRC Resident Inspector - VY USNRC Project Manager - VY Vermont Department of Public Service Page 3 of 3