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Focused Engineering Inspection - Age-Related Degradation Report 05000269/2024010 and 05000270/2024010 and 05000287/2024010
	ML24212A073
Person / Time
Site:	Oconee ; (DPR-038, DPR-047, DPR-055)
Issue date:	08/01/2024
From:	James Baptist; NRC/RGN-II/DRS/EB1
To:	Snider S; Duke Energy Carolinas
References
	IR 2024010
	Download: ML24212A073 (15)
	v • d • e

SUBJECT:

OCONEE NUCLEAR STATION, UNITS 1, 2 & 3 - FOCUSED ENGINEERING INSPECTION-AGE-RELATED DEGRADATION REPORT 05000269/2024010 AND 05000270/2024010 AND 05000287/2024010

Dear Steven M. Snider:

On June 27, 2024, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Oconee Nuclear Station, Units 1, 2 & 3 and discussed the results of this inspection with you and other members of your staff. The results of this inspection are documented in the enclosed report.

No findings or violations of more than minor significance were identified during this inspection.

This letter, its enclosure, and your response (if any) will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document Room in accordance with Title 10 of the Code of Federal Regulations 2.390, Public Inspections, Exemptions, Requests for Withholding.

Sincerely, James B. Baptist, Chief Engineering Branch 1 Division of Reactor Safety Docket Nos. 05000269 and 05000270 and 05000287 License Nos. DPR-38 and DPR-47 and DPR-55

Enclosure:

As stated

Inspection Report

Docket Numbers:

05000269, 05000270 and 05000287

License Numbers:

DPR-38, DPR-47 and DPR-55

Report Numbers:

05000269/2024010, 05000270/2024010 and 05000287/2024010

Enterprise Identifier:

I-2024-010-0045

Licensee:

Duke Energy Carolinas, LLC

Facility:

Oconee Nuclear Station, Units 1, 2 & 3

Location:

Seneca, SC

Inspection Dates:

June 10, 2024 to June 27, 2024

Inspectors:

P. Braxton, Reactor Inspector

G. Ottenberg, Senior Reactor Inspector

A. Ruh, Senior Reactor Inspector

Approved By:

James B. Baptist, Chief

Engineering Branch 1

Division of Reactor Safety

SUMMARY

The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting a Focused Engineering Inspection-Age-Related Degradation at Oconee Nuclear Station, Units 1, 2 & 3, in accordance with the Reactor Oversight Process. The Reactor Oversight Process is the NRCs program for overseeing the safe operation of commercial nuclear power reactors. Refer to https://www.nrc.gov/reactors/operating/oversight.html for more information.

List of Findings and Violations

No findings or violations of more than minor significance were identified.

Additional Tracking Items

None.

INSPECTION SCOPES

Inspections were conducted using the appropriate portions of the inspection procedures (IPs) in effect at the beginning of the inspection unless otherwise noted. Currently approved IPs with their attached revision histories are located on the public website at http://www.nrc.gov/reading-rm/doc-collections/insp-manual/inspection-procedure/index.html. Samples were declared complete when the IP requirements most appropriate to the inspection activity were met consistent with Inspection Manual Chapter (IMC) 2515, Light-Water Reactor Inspection Program - Operations Phase. The inspectors reviewed selected procedures and records, observed activities, and interviewed personnel to assess licensee performance and compliance with Commission rules and regulations, license conditions, site procedures, and standards.

REACTOR SAFETY

71111.21N.04 - Age-Related Degradation Age-Related Degradation

Main article: IP 71111.21

For each sample listed below, inspectors reviewed licensee activities credited to address age-related degradation to assess whether they were being performed using appropriate standards and procedures, assessed against appropriate acceptance criteria, and that maintenance was being performed at an appropriate interval. Inspectors assessed whether issues identified during licensee activities were being appropriately entered into and addressed by the station corrective action program, and whether periodic assessments of maintenance effectiveness and operating experience were being completed.

(1) Standby Shutdown Facility Diesel Generator

(2) Keowee Turbine Generator Cooling Water Strainers

(3) Main Feedwater Control Valve, 1FDW-CV-32

(4) Main Condenser Inlet and Outlet Expansion Joint Sleeves

(5) Keowee Cabling (trench and buried cable) located between the Keowee Hydro Station and Oconee Nuclear Station (6)3A & 3B Motor Driven Emergency Feedwater Pump Overcurrent Relays

(7) PSW-BK-B6T04, Protected Service Water High Pressure Injection Pump Alignment Switch

(8) Condenser Circulating Water Inlet Piping from Intake to Interface with Low Pressure Service Water Piping

(9) Unit 3 Main Steam System Snubbers

INSPECTION RESULTS

No findings were identified.

EXIT MEETINGS AND DEBRIEFS

The inspectors verified no proprietary information was retained or documented in this report.

On June 27, 2024, the inspectors presented the Focused Engineering Inspection-Age-Related Degradation results to Steven M. Snider and other members of the licensee staff.

DOCUMENTS REVIEWED

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

Person / Time
ML24212A073
Site:	Oconee (DPR-038, DPR-047, DPR-055)
Issue date:	08/01/2024
From:	James Baptist NRC/RGN-II/DRS/EB1
To:	Snider S Duke Energy Carolinas
References
IR 2024010
Download: ML24212A073 (15)
v • d • e

v t e Inspection Report - Oconee - 2024010
80 \| 81 \| 82 \| 83 \| 84 \| 85 \| 86 \| 87 \| 88 \| 89 \| 90 \| 91 \| 92 \| 93 \| 94 \| 95 \| 96 \| 97 \| 98 \| 99 00 \| 01 \| 02 \| 03 \| 04 \| 05 \| 06 \| 07 \| 08 \| 09 \| 10 \| 11 \| 12 \| 13 \| 14 \| 15 \| 16 \| 17 \| 18 \| 19 \| 20 \| 21 \| 22 \| 23 \| 24 \| 25 \| 26 \|
2024 Quarterly Integrated 1Q (0) 2Q (0) 3Q (0) 4Q (0) Assessments Mid Cycle End of Cycle 10(0) Security 401(0) 402(0) Operator Exams 301(0) Emergency Planning Other

IR 05000269/2024010