ML031880293
| ML031880293 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  (NPF-014, NPF-022) |
| Issue date: | 07/07/2003 |
| From: | Richard Guzman NRC/NRR/DLPM/LPD1 |
| To: | Shriver B Susquehanna |
| Guzman R, NRR/DLPM 415-1030 | |
| References | |
| TAC MB9008, TAC MB9009 | |
| Download: ML031880293 (5) | |
Text
July 7, 2003 Mr. Bryce L. Shriver Senior Vice President and Chief Nuclear Officer PPL Susquehanna, LLC 769 Salem Boulevard, NUCSB3 Berwick, PA 18603-0467
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION (RAI) - SUSQUEHANNA STEAM ELECTRIC STATION, UNITS 1 AND 2 (SSES 1 AND 2) - LONG-TERM STABILITY SOLUTION (TAC NOS. MB9008 AND MB9009)
Dear Mr. Shriver:
In reviewing your application of May 6, 2003, concerning an amendment to delete SSES Technical Specifications (TSs) 3.3.1.3, Oscillation Power Range Monitor Instrumentation, and revise TS 3.4.1, Recirculation Loops Operating, the U.S. Nuclear Regulatory Commission staff has determined that additional information contained in the enclosure to this letter is needed to complete its review. These questions were previously faxed to your staff on July 1, 2003. As agreed to by your staff, we request you respond within 30 days of the date of this letter.
If you have any questions, please contact me at 301-415-1030.
Sincerely,
/RA/
Richard V. Guzman, Project Manager, Section 1 Project Directorate I Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-387 and 50-388
Enclosure:
RAI cc w/encl: See next page
July 7, 2003 Mr. Bryce L. Shriver Senior Vice President and Chief Nuclear Officer PPL Susquehanna, LLC 769 Salem Boulevard, NUCSB3 Berwick, PA 18603-0467
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION (RAI) - SUSQUEHANNA STEAM ELECTRIC STATION, UNITS 1 AND 2 (SSES 1 AND 2) - LONG-TERM STABILITY SOLUTION (TAC NOS. MB9008 AND MB9009)
Dear Mr. Shriver:
In reviewing your application of May 6, 2003, concerning an amendment to delete SSES Technical Specifications (TSs) 3.3.1.3, Oscillation Power Range Monitor Instrumentation, and revise TS 3.4.1, Recirculation Loops Operating, the U.S. Nuclear Regulatory Commission staff has determined that additional information contained in the enclosure to this letter is needed to complete its review. These questions were previously faxed to your staff on July 1, 2003. As agreed to by your staff, we request you respond within 30 days of the date of this letter.
If you have any questions, please contact me at 301-415-1030.
Sincerely,
/RA/
Richard V. Guzman, Project Manager, Section 1 Project Directorate I Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-387 and 50-388
Enclosure:
RAI cc w/encl: See next page DISTRIBUTION:
Public OGC BPlatckek, RI FAkstulewicz RGuzman PDI-1 R/F RLaufer MO'Brien THuang ACRS Accession Number: ML031880293 OFFICE PDI-1/PM PDI-2/LA SRXB/SC PDI-1/SC NAME RGuzman Slittle for MO'Brien FAkstulewicz RLaufer DATE 7/3/03 7/3/03 7/3/03 7/7/03 OFFICIAL RECORD COPY
Enclosure REQUEST FOR ADDITIONAL INFORMATION RELATING TO LONG-TERM STABILITY SOLUTION SUSQUEHANNA STEAM ELECTRIC STATION, UNITS 1 & 2 DOCKET NOS. 50-387 AND 50-388 The Nuclear Regulatory Commission staff is reviewing the proposed license amendment to Facility Operating License Nos. NPF-14 and NPF-22 requesting to delete Technical Specifications (TSs) 3.3.1.3, Oscillation Power Range Monitor (OPRM) instrumentation, and to revise TS 3.4.1, Recirculation Loop Operating, dated May 6, 2003. The staff has determined that the information requested below will be needed to complete its review:
1.
According to guidance specified in Generic Letter 94-02, both SSES Units 1 and 2 are Long-Term Stability Option III - OPRM system plants. OPRM Instrumentation should be included in TSs based on Title 10 of the Code of Federal Regulations (10 CFR),
Section 50.36 to meet requirements stated in General Design Criterion (GDC) 10, 12 and 13 of 10 CFR Part 50, Appendix A. Provide the technical basis for the proposed deletion of TS 3.3.1.3 and the regulatory basis for a conclusion that you still meet the requirements stated in GDC 10, 12, and 13.
- 2.
Describe in detail the current implementation status of the OPRM system including system calibration and trip set-point based on the approach stated in NEDO-32465-A, Reactor Stability Detect and Suppress Solutions Licensing Basis Methodology for Reload Applications, or based on the approach of using plant-specific data. Also, provide detailed results of the system tests.
- 3.
Describe in detail the alternate method to detect and suppress thermal-hydraulic instability oscillations. Justify that the alternate method is an adequate means for safe operation under extended power uprate conditions without an operable OPRM system.
- 4.
Clarify whether Figure 3.4.1-1, Thermal Power Stability Restrictions of TS 3.4.1 is a permanent core flow map for Susquehanna plant operation, or is cycle dependent.
Also, justify that the alternative method is updated to correspond to changes in core/fuel design and power operation and is sufficient to detect and suppress thermal-hydraulic instability oscillation under all possible operating conditions.
- 5.
The generic solution to deal with 10 CFR Part 21 on the non-conservative generic DIVOM (Delta critical power ratio (CPR) to Initial CPR vs. Oscillation Magnitude) curve has been an open end issue for at least the last 2 years. It is the individual utilitys responsibility to make sure that their own long-term stability option is working rather than waiting for a final unpredicted result. Current operating experience at other boiling-water reactors demonstrates that a plant-specific input for the OPRM trip set-point works well. Provide the rationale why, the OPRM system for SSES was never armed.
Susquehanna Steam Electric Station, Units 1 &2 cc:
Bryce L. Shriver Senior Vice President and Chief Nuclear Officer PPL Susquehanna, LLC 769 Salem Blvd., NUCSB3 Berwick, PA 18603-0467 Richard L. Anderson Vice President - Nuclear Operations PPL Susquehanna, LLC 769 Salem Blvd., NUCSB3 Berwick, PA 18603-0467 Aloysius J. Wrape, III General Manager - Nuclear Assurance PPL Susquehanna, LLC Two North Ninth Street, GENA92 Allentown, PA 18101-1179 Terry L. Harpster General Manager - Plant Support PPL Susquehanna, LLC 769 Salem Blvd., NUCSA4 Berwick, PA 18603-0467 Robert A. Saccone General Manager - Nuclear Engineering PPL Susquehanna, LLC 769 Salem Blvd., NUCSB3 Berwick, PA 18603-0467 Rocco R. Sgarro Manager - Nuclear Regulatory Affairs PPL Susquehanna, LLC Two North Ninth Street, GENA61 Allentown, PA 18101-1179 Curtis D. Markley Supervisor - Nuclear Regulatory Affairs PPL Susquehanna, LLC 769 Salem Blvd., NUCSA4 Berwick, PA 18603-0467 Michael H. Crowthers Supervising Engineer Nuclear Regulatory Affairs PPL Susquehanna, LLC Two North Ninth Street, GENA61 Allentown, PA 18101-1179 Dale F. Roth Manager - Quality Assurance PPL Susquehanna, LLC 769 Salem Blvd., NUCSB2 Berwick, PA 18603-0467 Herbert D. Woodeshick Special Office of the President PPL Susquehanna, LLC 634 Salem Blvd., SSO Berwick, PA 18603-0467 Bryan A. Snapp, Esq Assoc. General Counsel PPL Services Corporation Two North Ninth Street, GENTW3 Allentown, PA 18101-1179 Supervisor - Document Control Services PPL Susquehanna, LLC Two North Ninth Street, GENTW3 Allentown, PA 18101-1179 Richard W. Osborne Allegheny Electric Cooperative, Inc.
212 Locust Street P.O. Box 1266 Harrisburg, PA 17108-1266 Director - Bureau of Radiation Protection Pennsylvania Department of Environmental Protection P.O. Box 8469 Harrisburg, PA 17105-8469 Senior Resident Inspector U.S. Nuclear Regulatory Commission P.O. Box 35, NUCSA4 Berwick, PA 18603-0035
Susquehanna Steam Electric Station Units 1 and 2 cc:
Regional Administrator, Region 1 U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Board of Supervisors Salem Township P.O. Box 405 Berwick, PA 18603-0035 Dr. Judith Johnsrud National Energy Committee Sierra Club 443 Orlando Avenue State College, PA 16803