PLA-6475, Supplement to Amendment Request No. 274 to Unit License NPF-22: MCPR Safety Limits, PLA-6475
| ML090420275 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 01/23/2009 |
| From: | Spence W PPL Corp, Susquehanna |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| PLA-6475 | |
| Download: ML090420275 (8) | |
Text
William H. Spence Executive Vice President and Chief Operating Officer/Chief Nuclear Officer Tel. 610.774.3683 Fax 610.774.5019 Whspence@pplweb.com PPL Corporation Two North Ninth Street Allentown, PA 18101-1179 Tel. 610.774.5151 www.pplweb.com softj PP.j JAN 2 3 2009 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Mail Stop OP1-17 Washington, DC 20555 SUSQUEHANNA STEAM ELECTRIC STATION SUPPLEMENT TO AMENDMENT REQUEST NO. 274 TO UNIT 2 LICENSE NPF-22: MCPR SAFETY LIMITS PLA-6475 Docket No. 50-388 Reference.
"Proposed Amendment No. 274 to Unit 2 License NPF-22: MCPR Safety Limits,"
dated October 30, 2008.
In accordance with the provisions of 10 CFR 50.90, PPL Susquehanna, LLC (PPL) is submitting a supplement to the requested amendment to the Technical Specifications for Susquehanna Steam Electric Station Unit 2 that was submitted in Reference 1. This supplement proposes a new license condition to the Unit 2 Operating License (NPF-22) and is the result of discussion between PPL and NRC personnel that occurred on January 13, 2009.
In accordance with 10 CFR 21, on October 8, 2007, AREVA NP; Inc. (AREVA) provided notification of a defect in the calculation of steady-state core Minimum Critical Power Ratio (MCPR) by the core monitoring system when the SPCB critical power correlation is used for ATRIUM-10 fuel. The defect is in the additive constants, a parameter used by the SPCB critical power calculation. PPL subsequently implemented compensatory actions to address the error created by the non-conservative additive constants. On May 1, 2008, AREVA submitted EMF-2209(P), Revision 2, Addendum 1, "SPCB Additive Constants for ATRIUM-10 Fuel" that revised the additive constants to correct the reported defect. The requested amendment submitted in Reference 1 was based on calculations that used the corrected additive constants contained in EMF-2209(P), Revision 2, Addendum 1. Since EMF-2209(P), Revision 2, Addendum I is currently under review by the NRC, PPL is submitting a proposed license condition to require that appropriate compensatory actions be applied until the approved version of EMF-2209(P), Revision 2, Addendum 1 is published and PPL verifies that the additive constants from the approved report have been incorporated in the cycle-specific analyses.
koc) ý Document Control Desk PLA-6475 provides the evaluation for the proposed change. Attachment 2 provides the corresponding Facility Operating License "markup" page. No new regulatory commitments are made herein.
In accordance with 10 CFR 50.91 (b), PPL Susquehanna, LLC is providing the Commonwealth of Pennsylvania with a copy of this proposed License Amendment request.
If you have any questions regarding this submittal, please contact Mr. C. E. Manges, Jr.
at (570) 542-3089.
I declare, under penalty of perjury, that the foregoing is true and correct.
Attachments: - Description and Assessment of the Proposed Change - Proposed License Condition to Unit 2 Operating License (Mark-ups) cc:
NRC Region I Mr. R. Janati, DEP/BRP Mr. F. W. Jaxheimer, NRC Sr. Resident Inspector Mr. B. K. Vaidya, NRC Project Manager to PLA-6475 Description and Assessment of the Proposed Change to PLA-6475 Page 1 of 2 DESCRIPTION AND ASSESSMENT
1.0 DESCRIPTION
Operating License NPF-22 for Susquehanna Steam Electric Station (SSES) Unit 2 will have an additional license condition. The proposed License Condition 2.C.25 will be added to ensure that PPL applies appropriate compensatory actions until the approved version of EMF-2209(P), Revision 2, Addendum 1 is published and PPL verifies that the additive constants from the approved report have been incorporated in the cycle-specific analyses.
2.0 DESCRIPTION
OF PROPOSED AMENDMENT Proposed License Condition 2.C.25 is as follows:
"AREVA NP has submitted EMF-2209(P), Revision 2, Addendum 1 (ML081260442) for NRC review to correct the critical power correlation additive constants due to a prior Part 21 notification (ML072830334). The report is currently under NRC review.
The licensee shall apply additional margin to the cycle-specific OLMCPR, consistent in magnitude with the non-conservatism reported in the Part 21 report, thus imposing the appropriate MCPR penalty on the OLMCPR. This compensatory measure is to be applied until the approved version of EMF-2209(P), Revision 2, Addendum 1 is published and PPL verifies that the additive constants from the approved report have been incorporated in the cycle-specific analyses."
3.0 BACKGROUND
In accordance with 10 CFR 21, on October 8,2007, AREVA NP, Inc. (AREVA) provided notification of a defect in the calculation of steady-state core Minimum Critical Power Ratio (MCPR) by the core monitoring system when the SPCB critical power correlation is used for ATRIUM-10 fuel. The defect is in the additive constants, a parameter used by the SPCB critical power calculation. PPL subsequently implemented compensatory actions to address the error created by the non-conservative additive constants. On May 1, 2008, AREVA submitted EMF-2209(P), Revision 2, Addendum 1, "SPCB Additive Constants for ATRIUM-10 Fuel" that revised the additive constants to correct the reported defect. The requested amendment submitted in Reference 1 was based on calculations that used the corrected additive constants contained in to PLA-6475 Page 2 of 2 EMF-2209(P), Revision 2, Addendum 1. Since EMF-2209(P), Revision 2, Addendum 1 is currently under review by the NRC, PPL is submitting a proposed license condition to require that appropriate compensatory actions be applied until the approved version of EMF-2209(P), Revision 2, Addendum 1 is published and PPL verifies that the additive constants from the approved report have been incorporated in the cycle-specific analyses.
4.0 TECHNICAL ANALYSIS
This supplement does not affect the technical justification or conclusions provided in the original request (Reference 1).
5.0 REGULATORY SAFETY ANALYSIS 5.1 No Significant Hazards Consideration This supplement does not affect the no significant hazards consideration evaluation provided in the original request.
5.2 Applicable Regulatory Requirements/Criteria This supplement does not affect the discussion of the applicable regulatory requirements/
criteria provided in the original request.
6.0 ENVIRONMENTAL CONSIDERATION
S This supplement does not affect the environmental considerations conclusions provided in the original request.
7.0 REFERENCES
(1)
PLA-6438, Mr. B. T. McKinney (PPL) to Document Control Desk (USNRC),
"Proposed Amendment No. 274 to Unit 2 License NPF-22: MCPR Safety Limits,"
dated October 30, 2008.
to PLA-6475 Proposed License Conditions to Unit 2 Operating License (Mark-ups)
(23)
Containment Operability for EPU PPL shall ensure that the CPPU containment analysis is consistent with the SSES 1 and 2 operating and emergency procedures. Prior to operation above CLTP, PPL shall notify the NRC project manager that all appropriate actions have been completed.
(24) Primary Containment Leakage Rate Testing Program
_rnse;_Z' /4
- 2. D.
Those primary containment local leak rate program tests (Type B -
leakage-boundary and Type C - containment isolation valves) as modified by approved exemptions, required by 10 CFR Part 50, Appendix J, Option B and Technical Specification 5.5.12, are not required to be performed at the CPPU peak calculated containment internal pressure of 48.6 psig (Amendment No. 224 to this Operating License) until their next required performance.
The operating licensee shall fully implement and maintain in effect all provisions of the Commission-approved physical security, guard training and qualification, and safeguards contingency plans including amendments made pursuant to provisions-of the Miscellaneous Amendments and Search Requirements revisions to 10 CFR 73.55 (51 FR 27817 and 27822) and to the authority of 10 CFR 50.90 and 10 CFR 50.54(p).- The plans, which contain Safeguards Information protectedunder 10 CFR 73.21, are entitled: "Susquehanna Steam Electric Station Physical Security-Plan," With revisions submitted through September 24, 1987; ".Susquehanna Stea m Electric Station Guard Training and Qualification Plan," With revisionssubmitted through May 28, 1985; and "Susquehanna Steam Electric Station Safeguards Contingency Plan," with revisions submitted through September 24, 1987. Changes made in accordance with 10 CFR 73.55 shall be implemented in accordance with the schedules set forth therein.
E.
Deleted.
Amendment No. t62,224, 226 1
INSERT A (25) Critical Power Correlation Additive COristants AREVA NP has submitted EMF-2209(P), Revision 2, Addendum 1 (ML081260442) for NRC review to correct the critical power correlation additive constants due to a prior Part 21 notification (ML072830334).
The report is currently under NRC review.
The licensee shall apply additional margin to the cycle specific OLMCPR, consistent in magnitude with the non-conservatism reported in the Part 21 report, thus imposing the appropriate MCPR penalty on the OLMCPR. This compensatory measure is to be applied until the approved version of EMF-2209(P) Revision 2, Addendum 1 is published and PPL verifies that the additive constants from the approved report have been incorporated in the cycle specific analyses.