IR 05000269/2024004

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Integrated Inspection Report 05000269/2024004 and 05000270/2024004 and 05000287/2024004
ML25037A263
Person / Time
Site: Oconee  
Issue date: 02/10/2025
From: Robert Williams
Division of Operating Reactors
To: Snider S
Duke Energy Carolinas
References
IR 2024004
Download: ML25037A263 (1)


Text

SUBJECT:

OCONEE NUCLEAR STATION - INTEGRATED INSPECTION REPORT 05000269/2024004 AND 05000270/2024004 AND 05000287/2024004

Dear Steven Snider:

On December 31, 2024, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Oconee Nuclear Station. On February 3, 2025, the NRC inspectors 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, Robert E. Williams, Jr., Chief Projects Branch 1 Division of Operating 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:

05000269/2024004, 05000270/2024004 and 05000287/2024004

Enterprise Identifier:

I-2024-004-0021

Licensee:

Duke Energy Carolinas, LLC

Facility:

Oconee Nuclear Station

Location:

Seneca, South Carolina

Inspection Dates:

October 01, 2024, to December 31, 2024

Inspectors:

N. Smalley, Senior Resident Inspector

D. Dang, Resident Inspector

E. Robinson, Resident Inspector

S. Downey, Senior Reactor Inspector

D. Neal, Health Physicist

A. Nielsen, Senior Health Physicist

J. Viera, Senior Operations Engineer

Approved By:

Robert E. Williams, Jr., Chief

Projects Branch 1

Division of Operating Reactor Safety

SUMMARY

The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting an integrated inspection at Oconee Nuclear Station, 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

Type Issue Number Title Report Section Status LER 05000269/2022-001-00 LER 2022-001-00 for Oconee Nuclear Station,

Unit 1, Ultrasonic Examination Indications Identifies Degraded Reactor Coolant System Pressure Boundary 71153 Closed LER 05000269/2022-001-01 LER 2022-001-01 for Oconee Nuclear Station,

Unit 1, Ultrasonic Examination Indication Identifies Degraded Reactor Coolant System Pressure Boundary 71153 Closed

PLANT STATUS

Unit 1 began the inspection period at or near 100 percent rated thermal power (RTP). On October 21, 2024, the unit was shut down for a scheduled refueling outage (O1R33). Unit 1 returned to 100 percent RTP on November 14, 2024, and operated at or near 100 percent RTP for the remainder of the inspection period.

Unit 2 operated at or near 100 percent RTP for the entire inspection period.

Unit 3 operated at or near 100 percent RTP for the entire inspection period.

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 performed activities described in IMC 2515, Appendix D, Plant Status, observed risk significant activities, and completed on-site portions of IPs. 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

71111.01 - Adverse Weather Protection

Seasonal Extreme Weather Sample (IP Section 03.01) (1 Sample)

(1) The inspectors evaluated readiness for seasonal extreme weather conditions prior to the onset of seasonal cold temperatures for the following systems: low pressure injection (LPI), essential siphon vacuum (ESV), and auxiliary building ventilation on December 6, 2024.

71111.04 - Equipment Alignment

Partial Walkdown Sample (IP Section 03.01) (3 Samples)

The inspectors evaluated system configurations during partial walkdowns of the following systems/trains:

(1) Protected service water system with standby shutdown facility out of service (OOS)for instrumentation modification on October 29, 2024
(2) Transformer CT-5 power path during O1R33 refueling outage on November 5, 2024
(3) Unit 3 A train reactor building spray concurrent with testing on the B train on December 11, 2024

Complete Walkdown Sample (IP Section 03.02) (1 Sample)

(1) The inspectors evaluated system configurations during a complete system walkdown of Unit 1 low pressure injection during the O1R33 refueling outage between October 22 and November 12, 2024.

71111.05 - Fire Protection

Fire Area Walkdown and Inspection Sample (IP Section 03.01) (5 Samples)

The inspectors evaluated the implementation of the fire protection program by conducting a walkdown and performing a review to verify program compliance, equipment functionality, material condition, and operational readiness of the following fire areas:

(1) Fire zone 33: Unit 2 4160V switchgear on October 3, 2024
(2) Fire zone 95: Unit 1 equipment room on October 7, 2024
(3) Fire zone 103: Unit 2 east penetration room on October 7, 2024
(4) Fire zone 77: Unit 3 auxiliary building 200 level hallway on November 5, 2024
(5) Fire zone 122: Unit 1 containment on November 7, 2024

71111.06 - Flood Protection Measures

Flooding Sample (IP Section 03.01) (1 Sample)

(1) The inspectors evaluated internal flooding mitigation protections for the coolant storage system, low pressure injection system, and the spent fuel cooling system in the Unit 1, 2, and 3 auxiliary building.

===71111.08P - Inservice Inspection Activities (PWR) The inspectors verified that the reactor coolant system boundary, reactor vessel internals, risk-significant piping system boundaries, and containment boundary are appropriately monitored for degradation and that repairs and replacements were appropriately fabricated, examined and accepted by reviewing the following activities in Unit 1 during refueling outage O1R33 from October 28 to November 6, 2024.

PWR Inservice Inspection Activities Sample - Nondestructive Examination and Welding Activities (IP Section 03.01)===

The inspectors verified that the following nondestructive examination and welding activities were performed appropriately:

(1) Ultrasonic Examination

1. 1-03-3-3X4, pipe to pipe weld, ASME Class 2

2. 1-FDW-250-30B, elbow to reducer weld, ASME Class 2

3. 1-FDW-250-31B, pipe to reducer weld, ASME Class 2

4. 1-PDB2-11, safe end to pipe dissimilar metal weld, ASME Class 1

5. 1-RC-0201-126V, high pressure injection 1B2 weld overlay, ASME Class 1

PWR Inservice Inspection Activities Sample - Vessel Upper Head Penetration Inspection

Activities (IP Section 03.02) (1 Sample)

The inspectors verified that the licensee conducted the following vessel upper head penetration inspections and addressed any identified defects appropriately:

(1) Bare metal visual examination of 1-RPV-HEAD-PEN, reactor pressure vessel upper head, ASME Class 1 PWR Inservice Inspection Activities Sample - Boric Acid Corrosion Control Inspection Activities (IP Section 03.03) (1 Sample)

The inspectors evaluated the licensees boric acid control program performance, which included the following activities:

(1)

1. Boric acid walkdown - October 29, 2024

2. Review of the following boric acid evaluations (by condition report number):

a.

Nuclear condition report (NCR) 02484541 b.

NCR 02486699 c.

NCR 02494772 d.

NCR 02503578 e.

NCR 02540684

3. Review of the following corrective actions performed for evidence of boric acid

leaks that were identified (by work request number):

a.

Work request (WR) 20238022 b.

WR 20238153 c.

WR 20254024 d.

WR 20254232 e.

WR 20261484 PWR Inservice Inspection Activities Sample - Steam Generator Tube Inspection Activities (Section 03.04) (1 Sample)

The inspectors verified that the licensee is monitoring the steam generator tube integrity appropriately through a review of the following examinations:

(1)

1. Steam generator 1A - eddy current testing (ECT) for tubes R1C10, R60C3,

R127C2

2. Steam generator 1B - ECT for tubes R54C21, R70C2, R74C3, R75C20

71111.11A - Licensed Operator Requalification Program and Licensed Operator Performance

Requalification Examination Results (IP Section 03.03) (1 Sample)

The licensee completed the annual requalification operating examinations required to be administered to all licensed operators in accordance with Title 10 of the Code of Federal Regulations 55.59(a)(2), "Requalification Requirements," of the NRC's "Operator's Licenses." The inspector performed an in-office review of the overall pass/fail results of the individual operating examinations, and the crew simulator operating examinations in accordance with inspection procedure (IP) 71111.11, "Licensed Operator Requalification Program and Licensed Operator Performance." These results were compared to the thresholds established in Section 3.03, "Requalification Examination Results," of IP

===71111.11.

(1) The inspectors reviewed and evaluated the licensed operator examination failure rates for the requalification annual operating exam administered on March 28, 2024.

71111.11Q - Licensed Operator Requalification Program and Licensed Operator Performance

Licensed Operator Performance in the Actual Plant/Main Control Room (IP Section 03.01) (1 Sample)

(1) The inspectors observed and evaluated licensed operator performance in the main control room of Unit 1 during outage and unit startup activities on November 12, 2024.

Licensed Operator Requalification Training/Examinations (IP Section 03.02)===

(1) The inspectors observed and evaluated a simulator exam for an operating crew in accordance with annual simulator exam (ASE)-30 in the simulator on November 19, 2024.

71111.12 - Maintenance Effectiveness

Maintenance Effectiveness (IP Section 03.01) (2 Samples)

The inspectors evaluated the effectiveness of maintenance to ensure the following structures, systems, and components (SSCs) remain capable of performing their intended function:

(1) NCR 2533422, loss of the 1XR motor control center during preventive maintenance on October 28, 2024
(2) NCR 2535065, transformer CX feeder breaker tripped during troubleshooting on November 9, 2024

71111.13 - Maintenance Risk Assessments and Emergent Work Control

Risk Assessment and Management Sample (IP Section 03.01) (3 Samples)

The inspectors evaluated the accuracy and completeness of risk assessments for the following planned and emergent work activities to ensure configuration changes and appropriate work controls were addressed:

(1) Unit 1 and 2 elevated green risk prior to unit shutdown due to minor leak repair on B train of high pressure service water (HPSW), on October 17-20, 2024
(2) Unit 1 yellow risk due to reactor coolant system draining and lowered inventory operations, on October 23 and 24, 2024
(3) Unit 1 yellow risk due to reduced inventory following refueling, on November 4 and 5, 2024

71111.15 - Operability Determinations and Functionality Assessments

Operability Determination or Functionality Assessment (IP Section 03.01) (4 Samples)

The inspectors evaluated the licensee's justifications and actions associated with the following operability determinations and functionality assessments:

(1) NCR 2533234, safety valve 1CF-1 failed to operate from the control room
(2) NCR 2533422, main control room and technical support center (TSC) following loss of power to motor control center 1XR on October 28, 2024
(3) NCR 2532897, 1LP-37 LPI cooler B thermal relief valve lifted during LPI alignment
(4) NCR 2533976, 1MS-164 (1B main steam atmospheric dump valve control valve)valve disc stem unconnected from actuator stem

71111.20 - Refueling and Other Outage Activities

Refueling/Other Outage Sample (IP Section 03.01) (1 Sample)

(1) The inspectors evaluated refueling outage O1R33 activities from October 21, 2024, to November 16, 2024.

71111.24 - Testing and Maintenance of Equipment Important to Risk

The inspectors evaluated the following testing and maintenance activities to verify system operability and/or functionality:

Post-Maintenance Testing (PMT) (IP Section 03.01) (4 Samples)

(1) Periodic test (PT)/1/A/0150/055, borated water storage tank return valve 1LP42 retest, on October 22, 2024
(2) Instrument procedure (IP)/2/A/0315/014 A, post maintenance testing on Unit 2 control rod drive (CRD) breaker, on October 30, 2024
(3) IP/0/A/3000/003 KB2, "Keowee Hydro Station Battery 2 Service Test and Annual Surveillance," following complete battery bank replacement, on November 21, 2024
(4) PT/0/A/0610/017, operability test of 4160V breakers following refurbishment of breaker B2T-09 on December 16, 2024

Surveillance Testing (IP Section 03.01) (3 Samples)

(1) PT/3/A/0202/011, "High Pressure Injection Pump Test," on October 16, 2024
(2) PT/0/A/0711/001, "Zero Power Physics Test," on November 12, 2024
(3) PT/3/A/0600/012, "Turbine Driven Emergency Feedwater Pump Test," on Unit 3, on December 9, 2024

Containment Isolation Valve (CIV) Testing (IP Section 03.01) (1 Sample)

(1) PT/1/A/0151/019, "Penetration 19 Leak Rate Test," on November 8, 2024

Reactor Coolant System Leakage Detection Testing (IP Section 03.01) (1 Sample)

(1) Increased unidentified reactor coolant leakage on Unit 1 using PT/1/A/0600/010 during the week of December 9,

RADIATION SAFETY

71124.01 - Radiological Hazard Assessment and Exposure Controls

Radiological Hazard Assessment (IP Section 03.01) (1 Sample)

(1) The inspectors evaluated how the licensee identifies the magnitude and extent of radiation levels and the concentrations and quantities of radioactive materials and how the licensee assesses radiological hazards.

Instructions to Workers (IP Section 03.02) (1 Sample)

(1) The inspectors evaluated how the licensee instructs workers on plant-related radiological hazards and the radiation protection requirements intended to protect workers from those hazards.

Contamination and Radioactive Material Control (IP Section 03.03) (2 Samples)

The inspectors observed/evaluated the following licensee processes for monitoring and controlling contamination and radioactive material:

(1) Licensee surveys of potentially contaminated material leaving the Warehouse 10 outside storage area radiologically controlled area (RCA)
(2) Workers exiting the RCA during the Unit 1 refueling outage

Radiological Hazards Control and Work Coverage (IP Section 03.04) (3 Samples)

The inspectors evaluated the licensee's control of radiological hazards for the following radiological work:

(1) Removal of transfer tube covers
(2) Low pressure service water piping replacement
(3) Preparation for reactor vessel head removal High Radiation Area and Very High Radiation Area Controls (IP Section 03.05) (4 Samples)

The inspectors evaluated licensee controls of the following high radiation areas (HRAs) and very high radiation areas (VHRAs):

(1) Unit 1-2 spent resin storage tank room locked high radiation area (LHRA)
(2) Unit 1-3 reactor coolant bleed evaporator room LHRA
(3) Miscellaneous waste LHRA
(4) In-core wire casks 1 and 2 VHRA Radiation Worker Performance and Radiation Protection Technician Proficiency (IP Section 03.06) (1 Sample)
(1) The inspectors evaluated radiation worker and radiation protection technician performance as it pertains to radiation protection requirements.

71124.08 - Radioactive Solid Waste Processing & Radioactive Material Handling, Storage, &

Transportation

Radioactive Material Storage (IP Section 03.01)

The inspectors evaluated the licensees performance in controlling, labeling and securing the following radioactive materials:

(1) Outside radioactive material storage areas adjacent to Warehouse 10

Radioactive Waste System Walkdown (IP Section 03.02) (3 Samples)

The inspectors walked down the following accessible portions of the solid radioactive waste systems and evaluated system configuration and functionality:

(1) Radwaste facility liquid and solid radioactive waste processing systems
(2) Abandoned concentrate batch tanks
(3) Interim radwaste building filter handling area

Waste Characterization and Classification (IP Section 03.03) (2 Samples)

The inspectors evaluated the following characterization and classification of radioactive waste:

(1) Dry active waste, 2022-2023 waste stream report
(2) Resin batch tank resin, waste stream report, dated April 17, 2024

Shipping Records (IP Section 03.05) (4 Samples)

The inspectors evaluated the following non-excepted radioactive material shipments through a record review:

(1) Shipping record 22-2029, low specific activity (LSA), resin
(2) Shipping record 23-2008, LSA, resin
(3) Shipping record 23-2028, LSA, filters
(4) Shipping record 24-2010, LSA, resin

OTHER ACTIVITIES - BASELINE

===71151 - Performance Indicator Verification The inspectors verified licensee performance indicators submittals listed below:

OR01: Occupational Exposure Control Effectiveness Sample (IP Section 02.15)===

(1) November 19, 2023, through October 25, 2024 PR01: Radiological Effluent Technical Specifications/Offsite Dose Calculation Manual Radiological Effluent Occurrences (RETS/ODCM) Radiological Effluent Occurrences Sample (IP Section 02.16) (1 Sample)
(1) June 17, 2023, through October 23, 2024

71152A - Annual Follow-up Problem Identification and Resolution Annual Follow-up of Selected Issues (Section 03.03)

The inspectors reviewed the licensees implementation of its corrective action program related to the following issues:

(1) NCR 2532763, unqualified sealant used to repair resistance temperature detector (RTD) cable

71152S - Semiannual Trend Problem Identification and Resolution Semiannual Trend Review (Section 03.02)

(1) The inspectors reviewed the licensees corrective action program for potential adverse trends in CRD breaker trip time failure that might be indicative of a more significant safety issue.

71153 - Follow Up of Events and Notices of Enforcement Discretion Event Report (IP Section 03.02)

The inspectors evaluated the following licensees event reporting determinations to ensure it complied with reporting requirements.

(1) Licensee Event Report (LER) 05000269/2022-001-00, Ultrasonic Examination Indications Identifies Degraded Reactor Coolant System Pressure Boundary (ADAMS Accession No. ML22355A448) The inspectors determined that a cause could not be determined at this time and therefore no performance deficiency was identified. The inspectors did not identify a violation of NRC requirements. This LER is closed.
(2) LER 05000269/2022-001-01, Ultrasonic Examination Indications Identifies Degraded Reactor Coolant System Pressure Boundary (ADAMS Accession No. ML24312A416)

The inspectors determined that a cause could not be determined at this time and therefore no performance deficiency was identified. The inspectors did not identify a violation of NRC requirements. This LER is closed.

INSPECTION RESULTS

No findings were identified.

EXIT MEETINGS AND DEBRIEFS

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

  • On October 24, 2024, the inspectors presented the radiation protection inspection results to Steven Snider and other members of the licensee staff.
  • On November 6, 2024, the inspectors presented the baseline inservice inspection results to Steven Snider and other members of the licensee staff.
  • On February 3, 2025, the inspectors presented the integrated inspection results to Steven Snider and other members of the licensee staff.

DOCUMENTS REVIEWED

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

AD-OP-ONS-

20

Severe Weather Preparations

AD-WC-ALL-0230

Seasonal Readiness

IP/0/B/1606/009

Preventive Maintenance and Operational Check of Freeze

Protection

035

Procedures

OP/0/B/1140/050

Weather Related Activities

008

71111.01

Work Orders

20632079, 20627923

OFD-102A-1.1

Flow Diagram of Low Pressure Injection System (Borated

Water Supply & LPI Pump Suction)

OFD-102A-1.2

Flow Diagram of Low Pressure Injection System LPI Pump

Discharge

OFD-103A-3.1

Flow Diagram Of Reactor Building Spray System (BS)

Drawings

OFD-121A-1.1

Flow Diagram of Protected Service Water (PSW) System

Clearance PRT-0-24-SSF OOS-0268

Clearance PRT-1-24-CT-5-U1 MFB-0258(2)

Clearance PRT-3-24-3A RBS TRAIN-0261

Miscellaneous

OSS-0254.00-00-

28

(Mech) Design Basis Spec For The Low Pressure Injection

And Core Flood System (LPI)

71111.04

Work Orders

20575684

OSC-10816

ONS TCCA A and B Area Basis for AD-EG-ALL-1520

005

OSC-9294

NFPA-805 Transition Existing Engineering Equivalency

Evaluations

OSC-9314

NFPA 805 Transition Risk-Informed Performance-Based

Fire Risk Evaluation

006

Calculations

OSC-9659

Oconee Nuclear Safety Capability Assessment for Units 1,

2, and 3

011

Corrective Action

Documents

23868, 2444366

CSD-ONS-PFP-

1AB-0796

Pre-Fire Plan for U1 Auxiliary Building Elevation 796

71111.05

Fire Plans

CSD-ONS-PFP-

Pre-Fire Plan for U1 Reactor Building

000

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

1RB

CSD-ONS-PFP-

2AB-0809

Pre-Fire Plan for U2 Auxiliary Building Elevation 809

CSD-ONS-PFP-

2TB-0796

Pre-Fire Plan for U2 Turbine Building Elevation 796

CSD-ONS-PFP-

3AB-0783

Pre-Fire Plan for U3 Auxiliary Building Elevation 783

O-0310-FZ-008

Auxiliary Building - Unit 3 Fire Protection Plan Fire Area &

Fire Zone Boundaries Plan at EL 783+9

O-0310-FZ-009

Auxiliary Building - Units 1 Fire Protection Plan Fire Area &

Fire Zone Boundaries Plan at EL 796+6 & EL 797+6

O-0310-FZ-021

Reactor Building - Unit 1 Fire Protection Plan Fire Area &

Fire Zone Boundaries Plan at EL 861+6

O-0310-K-006

Auxiliary Building - Unit 3 Fire protection Plan & Fire Barrier,

Flood & Pressure Boundaries Plan at EL 783+9

O-0310-K-007

Fire Protect Aux Bldg Unit 1 EL 796+6

O-0310-K-019

Reactor Building - Unit 1 Fire Protection Plan & Fire Barrier,

Flood, & Pressure Boundaries Plan at EL 861+6

Miscellaneous

O-0310-K-11

Auxiliary Building - Unit 2 Fire Protection Plan & Fire

Barrier, Flood & Pressure Boundaries Plan at EL 809+3

Corrective Action

Documents

2412854, 2533950, 2424871

Miscellaneous

OSS-0254.00-00-

4005

Design Basis Specification for Design Basis Events

040

AD-OP-ALL-0205

Time Critical Actions/Sensitive Actions

AP/1-

2/A/1700/030

Auxiliary Building Flood

24

PT/0/A/0120/033

Time Critical Action Verification

010

Procedures

PT/0/B/0120/034

Time Critical Component Surveillance

2

71111.06

Work Orders

20545338

Miscellaneous

Oconee Unit 1 O1R22 Outage Steam Generator

Degradation Assessment

1-PDB2-11

Phased Array Ultrasonic Examination of 1-PDB2-11

11/02/2024

71111.08P

NDE Reports

1B2-HPI-UT-01-

Phased Array Ultrasonic Examination of 1-RC-0201-126V

11/02/2024

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

R1

UT-24-012

Ultrasonic Examination of 1FDW-250-30B

11/02/2024

UT-24-039

Ultrasonic Examination of 1-03-3-3X4

10/28/2024

UT-24-043

Ultrasonic Examination of 1FDW-250-31B

11/02/2024

VT-24-037

Visual Examination of 1-RPV-HEAD-PEN

11/01/2024

Miscellaneous

Simulator Exam Guide SEG 2405

71111.11Q

Procedures

AD-EP-ALL-0002

NRC Regulatory Assessment Performance Indicator

Guideline Emergency Preparedness Cornerstone

Corrective Action

Documents

2533422, 2534759, 2535065, 2534607

AD-EG-ALL-1210

Maintenance Rule Program

IP/0/A/2001/003

O

Inspection and Maintenance of 600 VAC Loadcenters

008

IP/0/A/3000/018 A

Ground Location for Instrument and Control DC Systems

IP/0/A/3009/017

Wire Terminal Installation, Labeling And Termination (600

Volts Or Less)

044

OP/0/A/1106/019

Keowee Hydro at Oconee

114

Procedures

OP/1/A/1107/018

Removal and Restoration of Motor Control Centers

038

71111.12

Work Orders

277904, 20278973

Corrective Action

Documents

2532272

Risk Profile and Defense in Depth Status Sheets for Unit 1

October 23rd and 24th

Risk Profile and Defense in Depth Status Sheets for Unit 1

November 4th and 5th

Risk Profiles for Units 1 and 2 on the week of October 14,

24

Miscellaneous

OSS-0254.00-00-

1002

(MECH) Design Basis Specification For High Pressure

Service Water System

AD-FP-ALL-1522

Duties of a Compensatory Fire Watch

AD-WC-ONS-

20

ONS Shutdown Risk Management

71111.13

Procedures

OP/1/A/1103/011

Draining and Nitrogen Purging RCS

104

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

Work Orders

20691508

2533422

Corrective Action

Documents

2532897

O-0703-F

One Line Diagram Station Auxiliary Circuits 600V

Drawings

OFD-102A-1.3

Flow Diagram of Low Pressure Injection System Core Flood

OSS-0254.00-00-

21

(MECH) Design Basis Specification for the Control Room

Ventilation System

Miscellaneous

OSS-0254.00-00-

28

(MECH) Design Basis Spec for the Low Pressure Injection

and Core Flood System (LPI)

OP/1/A/1104/001

Core Flooding System

OP/1/A/1107/018

Removal and Restoration of Motor Control Centers, Encl.

4.19, Removal and Restoration of MCC 1XR

Procedures

PT/1/A/0152/007

Core Flood System Valve Stroke Test

277904, 20692435

71111.15

Work Orders

20641698, 20277443

2531092, 2531281, 2532429, 2532695, 2532784, 2353718

Corrective Action

Documents

2532821, 2514360, 2533734. 2533950

Drawings

OFD-104A-01-01

Flow Diagram of Spent Fuel Cooling System

O1R33 Schedules, risk profiles and OCC packages

ONEI-0400-606

Oconee 1 Cycle 34 Physics Tests Manual

000

ONEI-0400-607

Oconee 1 Cycle 34 Core Operating Limits Report

000

OSC-1594

NUREG-0612 - Control of Heavy Loads - Load Drop

Analysis

2

Miscellaneous

OSS-0254.00-00-

1006

(MECH) Design Basis Specification for the Spent Fuel

Cooling System

AD-MN-ALL-0002

Foreign Material Exclusion

AP/1-

2/A/1700/035

Loss of SFP Cooling and/or Level

26

IP/0/B/3002/002 A

Polar Crane Inspection and Preventative Maintenance

015

MP/0/A/1710/017

B

Crane - Whiting - Polar - Inspection

019

MP/0/A/3005/012

Containment Inspection/Close Out Procedure

71111.20

Procedures

MP/0/B/1710/022

Operation of Reactor Building Polar Crane and Auxiliary

039

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

Hoist (CRD Crane)

OP/0/A/1108/001

Curves and General Information

20

OP/0/A/1108/001

A

Reactor Core and SFP Loss of Cooling Heatup Tables

009

OP/0/A/1108/001

B

Spent Fuel Pool Level vs. Temperature Curves

019

OP/1-

2/A/1104/006

SF Cooling System

113

OP/1/A/1102/001

Controlling Procedure For Unit Startup

331

OP/1/A/1102/004

Operation at Power

165

OP/1/A/1102/010

Controlling Procedure for Unit Shutdown

238

OP/1/A/1102/028

Reactor Building Tour and Containment Materiel Controls

019

OP/1/A/1103/006

RCP Operation

090

OP/1/A/1103/011

Draining and Nitrogen Purging RCS

104

OP/1/A/1105/019

Control Rod Drive System

037

OP/1/A/1106/001

Turbine Generator

141

OP/1/A/1502/009

Containment Closure Control

053

PT/1/A/0251/069

LPI Cooler Test

013

PT/1/A/0600/001

B

Instrument Surveillance Prior to Mode Change

050

PT/1/A/0630/001

Mode Change Verification

PT/1/A/1103/015

Reactivity Balance Procedure

084

Corrective Action

Documents

217854, 2218178, 2537631

K-0704

One Line Diagram - 125VDC Station Auxiliary Circuits

043

Drawings

OFD-101A-1.1

Flow Diagram of High Pressure Injection System (Letdown

Section)

KM 320.0028.001

Installation and Operating Instructions for Keowee Batteries

004

Miscellaneous

OSS-0254.00-00-

2018

(ELECT) Keowee 125VDC Power System

010

AD-EG-ALL-1311

Failure Investigation Process (FIP)

71111.24

Procedures

IP/0/A/3000/001

C

Removal, Installation, and Jumpering of Battery Cells

047

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

IP/0/A/3000/003

KB2

Keowee Hydro Station Battery 2 Service Test and Annual

Surveillance

009

IP/0/A/3000/026

Battery Cell Connection Resistance Test

048

IP/2/A/0315/014 A

TXS RPS Interposing Relay Test and Control Rod Drive

Breaker Trip Timing Test

006

OP/0/B/1106/033

Primary System Leak Identification

23

PT/0/A/0610/017

Operability Test of 4160V Breakers

031

PT/0/A/0620/009

Keowee Hydro Operation

056

PT/0/A/0711/001

Zero Power Physics Test

081

PT/1/A/0150/006

Mechanical Penetration Leak Rate Data

119

PT/1/A/0150/055

1LP-42 Leak Test

PT/1/A/0151/019

Penetration 19 Leak Rate Test

018

PT/1/A/0600/010

Reactor Coolant Leakage

2

PT/3/A/0202/011

High Pressure Injection Pump Test

095

PT/3/A/0600/012

Turbine Driven Emergency Feedwater Pump Test

096

Work Orders

20522956, 20629929, 20683468, 20443780

ALARA Plans

ALARA Plan

RWP 1022 - Alloy

600

Procedures

AD-RP-ALL-0007

Control of Radioactive Material

71124.01

Radiation Work

Permits (RWPs)

RWP # 1150

U1 RX BLDG CANAL SUPPORT ACTIVITIES

71151

Corrective Action

Documents

NCR 02526306

Corrective Action

Documents

2532763, 2303601, 2465306

Engineering

Changes

EC 424824

Environmental Qualification Maintenance Manual,

Equipment Type: Resistance Temperature Detectors

(RTDs), Manufacturer: Weed Instrument Company

000

OM 267.1336.001

Installation Instruction Operation Manual for N9031-1A RTD

and Associated Equipment

003

Miscellaneous

OSS-0218.00-00-

0013

(ELECT) Installation Spec Sealing Cable Entrances on

Class 1E Devices

71152A

Procedures

IP/0/A/0200/029 A

Sealing Cable Entrance Fittings on Class 1E Devices

035

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

IP/0/A/0200/032

RTD Replacement

066

Work Orders

20568069

Corrective Action

Documents

2517798, 2518187, 2517794, 2524972, 2304822, 2415976

EVAL-2018-ON-

CRD-00001084

CRD-Unit 1-LSS; CRD-Unit 1-LSS (Plant Level)

EVAL-2022-ON-

CRD-00002210

CRD-Unit 2 -HSS 100% Required

LTAM ON-22-

0019

Remove APSR CRDMs

LTAM ON-22-

23

CRD System Replacement

ON-19-0001

Unit 1 Dropped Rod Event

04/12/2018

Miscellaneous

OSS-0254.00-00-

2013

(ELEC) Design Basis Specification for the Control Rod Drive

System

018

71152S

Procedures

IP/1/A/0315/014 A

TXS RPS Interposing Relay Test and Control Rod Drive

Breaker Trip Timing Test

018

Corrective Action

Documents

2447967, 1905753

OFD-100A-1.1

Flow Diagram of Reactor Coolant System

Drawings

OFD-101A-1.4

Flow Diagram of High Pressure Injection System (Charging

Section)

Engineering

Changes

21842

Procedures

AD-PI-ALL-0106

Cause Investigation Checklists

71153

Work Orders

20513217