ML071560599

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Supplement to Application for License Amendment Request to Adopt TSTF-423, Risk Informed Modification to Selected Required Action End States for BWR Plants, Using the Consolidated Line Item Improvement Process
ML071560599
Person / Time
Site: Peach Bottom  Constellation icon.png
Issue date: 06/05/2007
From: Cowan P
Exelon Generation Co, Exelon Nuclear
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML071560599 (3)


Text

Exelon Nuclear www.exeloncorp.com 2 0 0 Exelon Way Kennett Square, PA 19348 10 CFR 50.90 June 5,2007 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555 Peach Bottom Atomic Power Station, Units 2 and 3 Facility Operating License Nos. DPR-44 and DPR-56 NRC Docket Nos. 50-277 and 50-278

Subject:

Supplement to Application for License Amendment Request to Adopt TSTF-423, Risk Informed Modification to Selected Required Action End States for BWR Plants, Using the Consolidated Line Item Improvement Process

References:

1.

Letter from P. 6. Cowan (Exelon Generation Company, LLC) to U. S. NRC, Application for Technical Specification Change TSTF-423, Risk Informed Modification to Selected Required Action End States for BWR Plants, Using the Consolidated Line Item Improvement Process, dated July 14, 2006

2.

TSTF-423, Revision 0, Technical Specifications End States, NEDC-32988-A

3.

TSTF-IG-05-02, Revision 1, Implementation Guidance for TSTF-423, Revision 0, Technical Specifications End States, NEDC-32988-A, dated March 2007 In Reference 1, Exelon Generation Company, LLC (EGC) requested a change to the Technical Specifications (TS) of Facility Operating License Nos. DPR-44 and DPR-56 for Peach Bottom Atomic Power Station (PBAPS), Units 2 and 3. The proposed amendment would modify TS to risk-informed requirements regarding selected Required Action End States as provided in Reference 2.

In support of the proposed change to the PBAPS TS, EGC made a regulatory commitment to follow the industry implementation guidance associated Technical Specification Task Force (TSTF)-423, Technical Specification End States, NEDC-32988-A, Revision 0 (i.e., Reference 2). Specifically, the commitment was to follow the guidance established in TSTF-IG-05-02, Implementation Guidance for TSTF-423, Revision 0, Technical Specification End States, NEDC-32988-A, Revision 0, and is documented in Enclosure 4 to Reference 1.

June 5,2007 U. S. Nuclear Regulatory Commission Page 2 EGC has subsequently learned that the industry has revised the implementation guidance to resolve an NRC concern related to consistency between the NRC TSTF-423 model safety evaluation and the implementation guide. As a result, EGC has determined that this particular commitment will be revised to follow the guidance established in Revision 1 of the implementation guidance document (i.e., Reference 3). The revised list of regulatory commitments originally submitted in Reference 1 is provided in the enclosure to this letter.

EGC has reviewed the information supporting a finding of no significant hazards consideration that was previously provided to the NRC in Reference 1. The revised commitment provided in this submittal and the revised implementation period do not affect the bases for concluding that the proposed license amendment does not involve a significant hazards consideration.

If you have any questions concerning this letter, please contact Mr. Dave Robillard at (610) 765-5952.

I declare under penalty of perjury that the foregoing is true and correct. Executed on the 5th day of June 2007.

Respectfully, G,/* Pamela B. Cowan Director, Licensing and Regulatory Affairs Exelon Generation Company, LLC 6

Enclosure:

List of Regulatory Commitments cc:

S. J. Collins, Administrator, Region I, USNRC F. L. Bower, USNRC Senior Resident Inspector, Peach Bottom J. D. Hughey, Project Manager, USNRC R. R. Janati, Commonwealth of Pennsylvania

ENCLOSUR List of Regulatory Cot m - -

7mitments The following table identifies those actions committed to by Exelon Generation Company, LLC (EGC) in this document. Any other statements in the submittal are provided for information purposes and are not considered to be regulatory commitments.

COMMITMENT EGC will follow the guidance established in Section 11 of NUMARC 93-01, Industry Guidance for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants, Nuclear Management and Resource Council, Revision 3, July 2000 EGC will follow the guidance established in TSTF-IG-05-02, Implementation Guidance for TSTF-423, Revision 0, Technical Specifications End States, NEDC-32988-A, Revision 1, March 2007 COMMITTED DATE Ongoing Implement with amendment COMMITMENT TYPE ONE-TIME ACTION (Y es/N 0 )

No NO PROGRAMMATIC (Y es/No)

Yes Yes