PLA-8048, Response to Request for Additional Information Regarding License Amendment Requesting Temporary Addition of Analyzed Rod Position Sequence
| ML23014A002 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 01/14/2023 |
| From: | David Jones Susquehanna, Talen Energy |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| References | |
| PLA-8048 | |
| Download: ML23014A002 (1) | |
Text
Derek Jones Susquehanna Nuclear, LLC
PlantManager 769 Salem Boulevard Berwick, PA 18603 Tel. 570.542.3749 Fax 570.542.1504 January 14, 2023 Attn: Document Control Desk 10 CFR 50.90 U. S. Nuclear Regulatory Commission Washington, DC 20555-0001 SUSQUEHANNA STEAM ELECTRIC STATION RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION REGARDING LICENSE AMENDMENT REQUESTING TEMPORARY ADDITION OF ANALYZED ROD POSITION SEQUENCE PLA-8048 Docket No. 50-388
References:
- 1) Susquehanna letter to NRC, Proposed Emergency Amendment to License NPF-22: Temporary Addition of Analyzed Rod Position Sequence (PLA-8042), dated January 10, 2023 (ADAMS Accession No. ML23010A265).
- 2) NRC letter to Susquehanna, Regulatory Audit Plan in Support of License Amendment Request to Revise Certain Control Rod Technical Specifications (EPID L-2023-LLA-0003), dated January 11, 2023 (ADAMS Accession No. ML23010A087).
- 3) NRC letter to Susquehanna, NRC Request for Additional Information -
Susquehanna License Amendment Request (EPID L-2023-LLA-0003), dated January 13, 2023 (ADAMS Accession No. ML23013A208).
Pursuant to 10 CFR 50.90, Susquehanna Nuclear, LLC (Susquehanna), submitted, in Reference 1, a request for an amendment to the Technical Specifications (TS) for the Susquehanna Steam Electric Station (SSES), Unit 2, Facility Operating License number NPF-22. Susquehanna requested NRC approval of the proposed changes under emergency circumstances as defined in 10 CFR 50.91(a)(5). The proposed amendment would modify TS 3.1.3, Control Rod Operability, TS 3.1.6, Rod Pattern Control, and TS 3.3.2.1, Control Rod Block Instrumentation, to add reference to the analyzed rod position sequence to allow for greater flexibility in rod manipulation during various stages of reactor power operation.
TALEN~
ENERGY Document Control Desk PLA-8048 The NRC notified Susquehanna in Reference 2 of the intent to conduct a virtual regulatory audit.
During the virtual audit, Susquehanna personnel met with members of the NRC staff to discuss specific questions provided by the NRC staff. Subsequently, the NRC provided a Request for Additional Information (RAI) in Reference 3. Enclosure 1 provides Susquehanna's response to the RAI.
Susquehanna has reviewed the information supporting a finding of No Significant Hazards Consideration and the Environmental Consideration provided to the NRC in Reference 1 and determined the information provided herein does not impact the original conclusions in Reference 1.
There are no new or revised regulatory commitments contained in this submittal.
Should you have any questions regarding this submittal, please contact Ms. Melisa Krick, Manager-Nuclear Regulatory Affairs, at (570) 542-1818.
I declare under penalty of perjury that the foregoing is true and correct.
Executed on January 14, 2023.
D. Jones Acting Site Vice President
Enclosures:
- 1. Response to Request for Additional Information Copy:
NRC Region I Mr. C. Highley, NRC Senior Resident Inspector Ms. A. Klett, NRC Project Manager Mr. M. Shields, PADEP/BRP
to PLA-8048 Response to Request for Additional Information to PLA-8048 Page 1 of 2 Response to Request for Additional Information On January 10, 2023, Susquehanna Nuclear, LLC (Susquehanna), submitted a license amendment request for the Susquehanna Steam Electric Station (SSES), Unit 2, Facility Operating License number NPF-22 (Reference 1). Susquehanna requested NRC approval of the proposed changes under emergency circumstances as defined in 10 CFR 50.91(a)(5).
Specifically, Susquehanna requested revision to Technical Specification (TS) 3.1.3, Control Rod Operability, TS 3.1.6, Rod Pattern Control, and TS 3.3.2.1, Control Rod Block Instrumentation, to add reference to the analyzed rod position sequence to allow for greater flexibility in rod manipulation during various stages of reactor power operation. By letter dated January 11, 2023, the NRC informed Susquehanna of the intent to conduct a virtual regulatory audit (Reference 2).
During the virtual audit, Susquehanna personnel met with members of the NRC staff to discuss specific questions provided by the NRC staff. Subsequently, the NRC provided a Request for Additional Information (RAI) in Reference 3. The response to this RAI is provided below.
RAI-1
The NRC staff requests the licensee to supplement its application with the response it posted in its audit portal to NRC Audit Request No. 5 (Discussion of whether the inoperable rods along the periphery be withdrawn from the core).
Susquehanna Response The inoperable rods along the periphery will be withdrawn from the core as soon as conditions allow above the low power setpoint.
RAI-2
The NRC staff requests the licensee to supplement its application with the information in the Response section (following the [Update 1/13/23] text) in its audit portal in response to NRC Audit Request No. 11 (Provide core map layout of pull sequence similar to NEDO-21231 Figures 3-1 and 3-2 and discuss efforts to manage radial symmetry.). The staff is not requesting the documents that are attached to the audit response.
Susquehanna Response The analyzed rod position sequence will maintain the banked position withdrawal sequence (BPWS) rod group assignments for all rods with exception of peripheral rods. Peripheral control rods in groups 1-4 will be assigned to either groups 5 or 6. Group 5 and 6 rod assignments will maintain quarter core symmetry.
to PLA-8048 Page 2 of 2 References
- 1. Susquehanna letter to NRC, Proposed Emergency Amendment to License NPF-22:
Temporary Addition of Analyzed Rod Position Sequence (PLA-8042), dated January 10, 2023 (ADAMS Accession No. ML23010A265).
- 2. NRC letter to Susquehanna, Regulatory Audit Plan in Support of License Amendment Request to Revise Certain Control Rod Technical Specifications (EPID L-2023-LLA-0003),
dated January 11, 2023 (ADAMS Accession No. ML23010A087).
- 3. NRC letter to Susquehanna, NRC Request for Additional Information - Susquehanna License Amendment Request (EPID L-2023-LLA-0003), dated January 13, 2023 (ADAMS Accession No. ML23013A208).