PLA-8141, Response to Request for Additional Information Regarding Relief Request 1RR06, PLA-8141

Response to Request for Additional Information Regarding Relief Request 1RR06, PLA-8141

ML24262A128
Person / Time
Site:	Susquehanna
Issue date:	09/18/2024
From:	Casulli E Susquehanna
To:	Office of Nuclear Reactor Regulation, Document Control Desk
References
PLA-8141
Download: ML24262A128 (1)

Text

Edward Casulli Susquehanna Nuclear, LLC SiteVice President 769 Salem Boulevard Berwick, PA 18603 TALEN~

Tel. 570.542.3795 Fax 570.542.1504 Edward.Casulli@TalenEnergy.com ENERGY

September 18, 2024

Attn: Document Control Desk 10 CFR 50.55a U. S. Nuclear Regulatory Commission Washington, DC 20555-0001

SUSQUEHANNA STEAM ELECTRIC STATION RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION REGARDING RELIEF REQUEST 1RR06 PLA-8141 Docket No. 50-387

References:

1) Susquehanna letter to NRC, Relief Request 1RR06 One Time Extension to the Fourth 10-Year Inservice Testing Program Interval (PLA-8115), dated May 23, 2024 (ADAMS Accession No. ML24144A273).

2) NRC email to Susquehanna, Summary of Verbal Authorization of 1RR 06

[EPID L-2024-LLR-0033], dated Ma y 30, 2024 (ADAMS Accession No. ML24155A104).

3) NRC email to Susquehanna, Request for Additional Information by the Office of Nuclear Reactor Regulator, Susquehanna 1 - Verbal Alternative Request for IST Interval Extension, Susquehanna Nuclear, LLC, Susquehanna, Unit 1, Docket No. 50-387, dated August 21, 2024.

In accordance with 10 CFR 50.55a(z), Susquehanna Nuclear, LLC (Susquehanna), in Reference 1, requested NRC approval of relief request 1RR06 associated with the fourth 10-year Inservice Testing (IST) Program interval for the Susquehanna Steam Electric Station, Unit 1.

Relief request 1RR06 proposed relief from the requi rements of American Society of Mechanical Engineers (ASME) Code for Operation and Maintenance of Nuclear Power Plants (OM Code),

2004 Edition through 2006 Addenda, Section ISTA-3120, Inservice Test Interval, sub-section (d). This relief request is a one-time extension to the end of th e fourth 10-year interval for the IST Program for the Susquehanna Steam Electric Station (SSES) Unit 1, which is beyond the code allowed one-year cumulative extension permitted by ISTA-3120(d). Verbal Authorization for relief request 1RR06 was received on May 30, 2024, as documented in Reference 2.

Document Control Desk PLA-8141

The NRC provided a Request for Additional Information (RAI) in Reference 3. The enclosure provides Susquehannas response to the RAI.

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.

E. Casulli

Enclosure:

Response to Request for Additional Information

Copy: NRC Region I Ms. J. England, NRC Senior Resident Inspector Ms. A. Klett, NRC Project Manager Mr. M. Shields, PA DEP/BRP Enclosure to PLA-8141

Response to Request for Additional Information

Enclosure to PLA-8141 Page 1 of 2

Response to Request for Additional Information

On May 23, 2024, Susquehanna Nuclear, LLC (Susquehanna), submitted a relief request, 1RR06, associated with the fourth 10-year Inservice Testing Program (IST) interval for the Susquehanna Steam Electric Station, Unit 1 (Reference 1). Relief request 1RR06 proposed relief from the requirements of American Society of Mechanical Engineers (ASME) Code for Operation and Maintenance of Nuclear Power Plants (OM Code), 2004 Edition through 2006 Addenda, Section ISTA-3120, Inservice Test Interval, sub-section (d). This relief request is a one-time extension to the end of the fourth 10-year interval for the IST Program for the Susquehanna Steam Electric Station (SSES) Unit 1, which is beyond the code allowed one-year cumulative extension permitted by ISTA-3120(d). Verbal Authorization for relief request 1RR06 was received on May 30, 2024, as documented in Reference 2. Subsequently, the NRC provided a Request for Additional Information (RAI) in Reference 3. The response to this RAI is provided below.

RAI

=

Background===

On March 27, 2024 (ML24080A502), and March 28, 2024 (ML24080A395), NRC authorized, Alternative Requests RR01 and RR02, respectively, for the Fifth 10-Year IST Program interval starting on June 1, 2024. The applicable code for both alternatives is the ASME OM Code, 2020 Edition. Per Alternative Request 1RR06 (to extend the fourth 10-year IST Interval), the start date of Alternative Requests RR01 and RR02 for the Fifth 10-Year IST interval would be changed to June 1, 2025.

Question 1

The NRC staff requests the licensee to confirm that with the extension of the fourth 10-year IST interval as proposed in Alternative Request 1RR06, the start date of Alternative Requests RR01 and RR02 for the fifth 10-year IST interval will be June 1, 2025.

Susquehanna Response

Yes, Susquehanna confirms that with the extension of the f ourth 10-year IST interval as proposed in Alternative Request 1RR06, the start date of Alternative Requests RR01 and RR02 for the fifth 10-year IST interval will be June 1, 2025. RR01 and RR02 will be utilized for the duration of the fifth 10-year IST interval.

Enclosure to PLA-8141 Page 2 of 2

References

1. Susquehanna letter to NRC, Relief Request 1RR06 One Time Extension to the Fourth 10-Year Inservice Testing Program Interval (PLA-8115), dated May 23, 2024 (ADAMS Accession No. ML24144A273).

2. NRC email to Susquehanna, Summary of Verbal Authorization of 1RR06 [EPID L-2024-LLR-0033], dated May 30, 2024 (ADAMS Accession No. ML24155A104).

3. NRC email to Susquehanna, Request for Additional Information by the Office of Nuclear Reactor Regulator, Susquehanna 1 - Verbal Alternative Request for IST Interval Extension, Susquehanna Nuclear, LLC, Susquehanna, Unit 1, Docket No. 50 387, dated August 21, 2024.