ONS-2018-023, Response to Nrc'S Request for Additional Information Regarding Relief Request 17-ON-001; Alternative to Extend the Code Case N-770, Inspection Item B, Examination Frequency

Response to Nrc'S Request for Additional Information Regarding Relief Request 17-ON-001; Alternative to Extend the Code Case N-770, Inspection Item B, Examination Frequency

ML18088A167
Person / Time
Site:	Oconee
Issue date:	03/20/2018
From:	Grant H Duke Energy Carolinas
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
ONS-2018-023
Download: ML18088A167 (2)

Text

- -1 H. Todd Grant e(~DUKE General Manager, Nuclear Engineering

'~ ENERGY Oconee Nuclear Station Duke Energy ONS-2018-023 ON01 VP / 7800 Rochester Hwy Seneca, SC 29672 March 20, 2018 10 CFR 50.55a o. 864.873.6767 f: 864.873.5791 ATTN: Document Control Desk Todd.Grant@duke-energy.com U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 Duke Energy Carolinas, LLC (Duke Energy)

Oconee Nuclear Station, Units 1 and 2 Docket Numbers 50-269 and 50-270 Renewed License Numbers DPR-38 and DPR-47

Subject:

Response to NRC's Request for Additional Information Regarding Relief Request 17-0N-001; Alternative to Extend the Code Case N-770, Inspection Item B, Examination Frequency

References:

1. Duke Energy Letter; "Fifth Ten Year lnservice Inspection Interval, Relief Request No. 17-0N-001; Alternative to extend the Code Case N-770, Inspection Item B Examination Frequency," October 3, 2017.

2. Duke Energy Letter; Supplemental information to support NRC review of Relief Request No. 17-0N-001; Alternative to extend the Code Case N-770, Inspection Item B Examination Frequency," November 13, 2017.

3. NRC E-mail, Subject; Request for Additional Information - Oconee RR-17-0N-001 (EPID L-2017-LLR-0099), March 12, 2018.

Ladies and Gentlemen, This letter transmits the Duke Energy response to the NRC's Request for Additional Information (RAI) regarding Relief Request No. 17-0N-001 (Reference 1) for Oconee Units 1 and 2. Duke Energy submitted the Relief Request on October 3, 2017 and the NRC determined clarification was needed to Section 3 "Applicable Code Requirements" to finalize their review.

Section 3 of Relief Request 17-0N-001 included a note that attempted to maintain the Relief Request's applicability should a new revision of Code Case N-770 be mandated by 10 CFR 50.55a in the future. However, the NRC staff was unclear if 10 CFR 50.55a allows such a note and requested that Duke clarify the note. In order to simplify the Section 3 content, Duke Energy is providing the following response to this RAI:

Please remove the entire note from Section 3. This will clarify that the pertinent Code requirement for this Relief Request is currently contained in Code Case N-770-2.

If there are any questions or further information is needed you may contact David Haile of Oconee Regulatory Affairs at (864) 873-4742.

Sincerely, tt~~~:t-H. Todd Grant General Manager, Nuclear Engineering Oconee Nuclear Station

ONS-2018-023 March 20, 2018 Page 2 cc:

Ms. Catherine Haney, Administrator, Region II U.S. Nuclear Regulatory Commission Marquis One Tower 245 Peachtree Center Ave., NE, Suite 1200 Atlanta, GA 30303-1257 Ms. Audrey L. Klett, Project Manager (by electronic mail only)

U.S. Nuclear Regulatory Commission 11555 Rockville Pike Mail Stop 0-0881 A Rockville, MD 20852-2738 Mr. Eddy Crowe NRG Senior Resident Inspector Oconee Nuclear Station