IR 05000454/2022003

Integrated Inspection Report 05000454/2022003 and 05000455/2022003

ML22307A163
Person / Time
Site:	Byron
Issue date:	11/07/2022
From:	Laura Kozak NRC/RGN-III/DORS/RPB3
To:	Rhoades D Constellation Energy Generation
References
IR 2022003
Download: ML22307A163 (18)

Text

SUBJECT:

BYRON STATION - INTEGRATED INSPECTION REPORT 05000454/2022003 AND 05000455/2022003

Dear Mr. Rhoades:

On September 30, 2022, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Byron Station. On October 13, 2022, the NRC inspectors discussed the results of this inspection with Mr. H. Welt, Site Vice President, 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, Laura L. Kozak, Acting Chief Reactor Projects Branch 3 Division of Operating Reactor Safety Docket Nos. 05000454 and 05000455 License Nos. NPF-37 and NPF-66

Enclosure:

As stated

Inspection Report

Docket Numbers: 05000454 and 05000455

License Numbers: NPF-37 and NPF-66

Report Numbers: 05000454/2022003 and 05000455/2022003

Licensee: Constellation Energy Generation, LLC

Facility: Byron Station

Location: Byron, IL

Inspection Dates: July 01, 2022 to September 30, 2022

Inspectors: R. Knutson, Illinois Emergency Management Agency J. Masse, Acting Resident Inspector V. Petrella, Resident Inspector, Point Beach Nuclear Plant C. Thompson, Illinois Emergency Management Agency J. Weigandt, Acting Senior Resident Inspector

Approved By: Laura L. Kozak, Acting Chief Reactor Projects Branch 3 Division of Operating Reactor Safety

Enclosure

SUMMARY

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

None.

PLANT STATUS

Unit 1 began the inspection period operating at full power. With the exception of minor reductions in power to support scheduled testing activities or small load changes requested by the transmission dispatcher, the unit remained at or near full power for the entire inspection period.

Unit 2 began the inspection period operating at full power. With the exception of minor reductions in power to support scheduled testing activities or small load changes requested by the transmission dispatcher, the unit remained at or near full power 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.

71111.01 - Adverse Weather Protection

External Flooding Sample (IP Section 03.03) (1 Sample)

(1) The inspectors evaluated that flood protection barriers, mitigation plans, procedures, and equipment are consistent with the licensees design requirements and risk analysis assumptions for coping with external flooding on August 16, 2022

71111.04 - Equipment Alignment

Partial Walkdown Sample (IP Section 03.01) (5 Samples)

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

(1) Unit 1 auxiliary feedwater (AF) following essential service water (SX) flushing on July 8, 2022

(2) Steam generator power operated relief valve power due to batter deficiencies, as documented in Issue Report (IR) 4512057 on July 22, 2022

(3) Spent fuel cooling due to impending motor replacement on July 27, 2022

(4) Unit 1 diesel oil following sampling activities associated with Work Orders (WOs) 5264835 and 5281179 on August 23, 2022

(5) Unit 1 B Train containment spray during A Train work window on September 8, 2022 Complete Walkdown Sample (IP Section 03.02) (1 Partial)

(1) (Partial)

The inspectors evaluated system configurations during a complete walkdown of the control room ventilation system on September 22, 2022

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) 0B Control Room HVAC equipment room on July 22, 2022

(2) Unit 2 emergency diesel generator (EDG) fire detection system on July 15, 2022

(3) Fuel handling building dry cask laydown area on August 10, 2022

(4) Unit 2 containment spray (CS) and residual heat removal (RHR) pump rooms on September 27, 2022

(5) Unit 1 CS and RHR pump rooms on September 28, 2022

Fire Brigade Drill Performance Sample (IP Section 03.02) (1 Sample)

(1) The inspectors observed and evaluated on-site fire brigade training and performance during Fire Drill Scenario 22-03 on July 26, 2022

71111.06 - Flood Protection Measures

Inspection Activities - Internal Flooding (IP Section 03.01) (1 Sample)

The inspectors evaluated internal flooding mitigation protections in the:

(1) Flooding strategy for the auxiliary electric equipment rooms on August 15 and September 28, 2022

71111.07A - Heat Exchanger/Sink Performance

Annual Review (IP Section 03.01) (1 Sample)

The inspectors evaluated readiness and performance of:

(1) The SX cooling towers and pumps on August 2 and 3, 2022

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 Control Room during various activities involving on-watch operations crews including the restoration of the U1 station auxiliary transformer on September 17, 2022

Licensed Operator Requalification Training/Examinations (IP Section 03.02) (1 Sample)

(1) The inspectors observed and evaluated performance of a complex casualty graded scenario by a crew of licensed plant operators in the facility's simulator on July 19, 2022

71111.12 - Maintenance Effectiveness

Maintenance Effectiveness (IP Section 03.01) (3 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) 2A service air compressor overhaul, as documented in WO 5122221 on July 28, and September 12 and 28, 2022

(2) Evaluation of the work and management of failing reactor protection system/emergency core cooling system instrumentation cards, as documented in WOs 5127822 and 5288015 on August 4 and September 12, 2022

(3) The conditions and maintenance of 1FC02F, as documented in IRs 4517343 and

===4513808 on August 16 and 22, and September 19 through 21, 2022

71111.13 - Maintenance Risk Assessments and Emergent Work Control

Risk Assessment and Management Sample (IP Section 03.01) (3 Samples 1 Partial)

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) Evaluation of the emergent work associated with the 2B EDG control power, as documented in WO 5278894 on July 25, 2022

(2) Evaluation of the planned work associated with dry cask storage fuel moves, as documented in WO 5181453 on July 18 and August 22 through 25, 2022

(3) Evaluation of the planned Unit 1 station auxiliary transformer work, as documented in WOs 5136977 and 5135929 on September 12, 2022 (4) (Partial)

Evaluation of the planned work associated with U1 spent fuel cooling pump motor replacement, as documented in WO 5136095 on July 27, 2022

71111.15 - Operability Determinations and Functionality Assessments

Operability Determination or Functionality Assessment (IP Section 03.01) (5 Samples 1 Partial)

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

(1) Evaluation of the operability of the 1A RHR recirculation suction (1SI06BA-24" piping)following identification of a void, as documented in IR 4511789 and WO 5270802 on July 20, 2022

(2) Evaluation of the operability of the 2FP010 containment isolation valve following identification of degrading trend of stroke time, as documented in IR 4512817 on July 27, 2022

(3) Evaluation of the operability of the 0A SX makeup pump following identification of a degraded limit switch signal, as documented in IR 4515366 on August 9, 2022

(4) Evaluation of the operability of the 2SI121A following an out of tolerance as-found test, as documented in IR 4521501 and WO 5237431 on September 9, 2022

(5) Evaluation of the operability of the 1A EDG following identification of a degraded airbox inlet cover bolt, as documented in IR 4522015 on September 13, 2022 (6) (Partial)

Evaluation of the operability of the 2B EDG following identification of a degraded Kilovac relay, as documented in IR 4512731 on July 29 and August 1, 2022

71111.18 - Plant Modifications

Temporary Modifications and/or Permanent Modifications (IP Section 03.01 and/or 03.02)

=

The inspectors evaluated the following temporary or permanent modifications:

(1) Engineering Change (EC) 634165: Lifting AT-VD52X Trip Contact for 1VD01CA, 1A EDG Supply Fan on August 22, 25, and 26, 2022

71111.19 - Post-Maintenance Testing

Post-Maintenance Test Sample (IP Section 03.01) (6 Samples)

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

(1) Functional and operational testing of the 0B VC makeup charcoal filter following replacement, as documented in WOs 5083557-06 and 5101493 on July 15, 2022

(2) Functional and operational testing of the 2A station air compressor following maintenance as documented in WOs 5168382 and 4512903 on July 28, 2022

(3) Functional and operational testing of the 0A SX makeup pump actuation following limit switch repair and calibration, as documented in WO 5282389 on August 9, 2022

(4) Functional and operational testing of the 1A steam generator steam flow channel following circuit card replacement, as documented in WO 5288015-1 on September 1, 2022

(5) Functional and operational testing of the 2A safety injection pump following maintenance, as documented in WO 5135571 on September 19, 2022

(6) Functional and operational testing the of Unit 1 station auxiliary transformer following inspections and testing, as documented in multiple WOs on September 17, 2022

71111.22 - Surveillance Testing

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

Surveillance Tests (other) (IP Section 03.01) (3 Samples)

(1) Calibration of AF feed flow loop electronics (BISR 3.4.2-200), as documented in WO 5110628 on July 15, 2022

(2) 2B AF monthly and quarterly tests, as documented in WOs 5272240 and 5258941 on July 14 and 15, 2022

(3) 1BOSR 5.5.8.CC.5-1C, 1A CC Comprehensive test, as documented in WO 5267098 on August 4, 2022

Inservice Testing (IP Section 03.01) (2 Samples)

(1) 1BOSR 5.5.8.AF.5-1B, 1A AF group B test, as documented in WO 5267096 on September 6, 2022

(2) 1BOSR 5.5.8.SI.5-2A, 1B SI group A test, as documented in WO 5266248 on August 11, 2022

FLEX Testing (IP Section 03.02) (1 Sample)

(1) Review of FLEX Surveillance, as documented in WO 5235105 and FLEX Building general equipment inspection on August 11 and 16, 2022

71114.06 - Drill Evaluation

Select Emergency Preparedness Drills and/or Training for Observation (IP Section 03.01) (1 Sample)

(1) Byron 2022 Off-Year Exercise on September 13, 2022

Drill/Training Evolution Observation (IP Section 03.02) (1 Sample)

The inspectors evaluated:

(1) An emergency action level declaration, notification, and post-exercise critique on August 2,

OTHER ACTIVITIES - BASELINE

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 spent fuel cooling filter leakage that might be indicative of a more significant safety issue on the week ending 24 September,

INSPECTION RESULTS

Observation: Repeated Leakage in Pipe Tunnel 71152S Inspectors performed a semiannual review to identify trends that might indicate the existence of a more significant safety issue. For their review, the inspectors focused on corrective action program entries for active boric acid leaks associated with auxiliary building filter vaults above the pipe tunnel. From 2020 through 2022, inspectors noted several instances of spent fuel cooling system filter leaks into their vaults, which then wetted SSCs in the pipe tunnel below. Notable examples were documented in the following condition reports:

4323495, Inactive Boric Acid Leak in Short Door Valve Aisle Blockwall, 03/03/2020 4445731, Active Leak Identified in 1FC02F Vault, 09/10/2021 4492901, Active Leak Identified in 1FC02F Vault, 04/13/2022 4513808, 1FC02F - Water Found After Removing the Filter Floor Plug, 07/29/2022

The inspectors found that some of the closure notes of the listed reports and earlier reports did not document how the issue was addressed. As part of their review, the inspectors performed a walkdown of the adjacent rooms and found white deposits at the base of the Unit 1 valve aisle wall (IR 45117343, NRC ID: U1 Valve Aisle Dried Boric Acid). After discussions with multiple departments and a review of subsequent borescope results, the inspectors identified that safety related auxiliary building ventilation (VA) ducting was being wetted with boric acid as evidenced by visible deposits. Boric acid was observed on the inside of several VA dampers, (0VA346Y, 347Y, 354Y, & 355Y) as well as external to the carbon steel ducting from the inspection images. The station tracked filter leakage targets in their boric acid corrosion control program. The station conducted cleaning and corrective repairs for a portion of the noted conditions. However, the impact to the safety related ducting was not part of the documented conditions or evaluations. Follow-up conversations with station personnel revealed that the adverse condition would not have reasonably prevented performance of the safety function. The inspectors determined that the failure to promptly identify and correct boric acid on safety related ducting was a performance deficiency and violation of Title 10 of the Code of Federal Regulations, Appendix B, Criterion XVI. The performance deficiency was determined to be of minor significance since the boric acid on this part of the VA exhaust flow path would not reasonably prevent performance of the safety function.

As a result of this observation and the station's investigations, the licensee has determined that the long-term trend of repeated leakage demonstrates further corrective actions are required to prevent future recurrence of these types of leaks. Byron has generated condition reports (IRs 4523779, 4523782, 4523784, & 4523787) for dried boric acid in each of the dampers listed. Additionally, the station updated their open corrosion evaluation (4519861, Repeated 0FC01F Leakage Long Term Solution Required) and further documented the following corrective actions to address the primary cause:

4519864, Repeated 1FC02F Leakage Long Term Solution Required 4519868, Repeated 1FC04F Leakage Long Term Solution Required 4519870, Repeated 2FC02F Leakage Long Term Solution Required 4519874, Repeated 2FC04F Leakage Long Term Solution Required, 4519876, Repeated FC Filter Leakage -A-Frame Hoist Enhancement 4519877, Repeated FC Filter Leakage - Replacement Filter Enhancement

The inspectors did not identify any findings or violations of more than minor significance during their review.

EXIT MEETINGS AND DEBRIEFS

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

On October 13, 2022, the inspectors presented the integrated inspection results to Mr. H. Welt, Site Vice President, and other members of the licensee staff.

DOCUMENTS REVIEWED

Inspection Type Designation Description or Title Revision or

Procedure Date

71111.01 Corrective Action 4517215 NRC ID: NRC North Roof Walkdown 08/16/2022

Documents

Resulting from

Inspection

Procedures OP-AA-108-111-Severe Weather and Natural Disaster Guidelines 24

1001

71111.04 Corrective Action 4512057 1D S/G PORV UPS Battery Bank Cell Leakage 07/20/2022

Documents

Corrective Action 4516269 NRC ID: 1SX243 and 1SX242 Valve Stem Length 08/11/2022

Documents Dissimilarities

Resulting from 4523921 NRC ID: 0VC01JC-1-C3 Alarm Locked in and will Not Reset 09/21/2022

Inspection

Procedures 1BOSR SX-M1 1A AF Pump SX Suction Line Monthly Flushing Surveillance 11

BOP CS-M1B Containment Spray System Train B Valve Lineup 3

BOP DO-300-2 Sampling the 50,000 Gallon Fuel Oil Storage Tank 0DO12T 10

BOP DO-M1 Diesel Fuel Oil System Valve Lineup 23

BOP VC-E1 Control Room Ventilation Electrical Lineup Unit 0 6

BOP VC-M1 Control Room Heating and Ventilation (HVAC) System 8

Valve Lineup

RP-BY-907 Process Radiation Monitoring System Alert/High Alarm 12

Setpoints

Work Orders 5264835 LR-(Sample) U-1 A D/G Fuel Day Tank 08/23/2022

281179 LR-(SAMPLE) 50,000 Gal Fuel Oil Storage Tank 08/23/2022

71111.05 Corrective Action 4516203 NRC ID: Extension Cord Usage in Fuel Handling Building 08/10/2022

Documents 4524985 NRC ID: 2A RH Pp Cub Cooler Fan Stop Lights Not Lit 09/27/2022

Resulting from 4525015 NRC Identified Loose Material in the 2A RH Pp Room 09/27/2022

Inspection

Fire Plans PFP AB 451-0 FZ Pre-Fire Plan Auxiliary Building 451-0 Elevation Control 2

18.4-2 Room HVAC Equipment Room Train B FZ 18.4-2 Plan #200

PFP AB1 346-0 Pre-Fire Plan Auxiliary Building Unit 1 346-0 Elevation 1A 2

FZ 11.2A-1 RHR Pump Room FZ 11.2A-1 Plan #103

PFP AB1 346-0 Pre-Fire Plan Auxiliary Building Unit 1 346-0 Elevation 1A 2

Inspection Type Designation Description or Title Revision or

Procedure Date

FZ 11.2B-1 Containment Spray Pump Room FZ 11.2B-1 Plan #105

PFP AB1 346-0 Pre-Fire Plan Auxiliary Building Unit 1 346-0 Elevation 1B 2

FZ 11.2C-1 Containment Spray Pump Room FZ 11.2C-1 Plan #107

PFP AB1 346-0 Pre-Fire Plan Auxiliary Building Unit 1 346-0 Elevation 1B 1

FZ 11.2D-1 RHR Heat Removal Pump Room FZ 11.2D-1 Plan #109

PFP AB2 346-0 Pre-Fire Plan Auxiliary Building Unit 2 346-0 Elevation 2A 2

FZ 11.2A-2 RHR Pump Room FZ 11.2A-2 Plan #104

PFP AB2 346-0 Pre-Fire Plan Auxiliary Building Unit 2 346-0 Elevation 2A 2

FZ 11.2B-2 Containment Spray Pump Room FZ 11.2B-2 Plan #106

PFP AB2 346-0 Pre-Fire Plan Auxiliary Building Unit 2 346-0 Elevation 2B 2

FZ 11.2C-2 Containment Spray Pump Room FZ 11.2.C-2 PLAN #108

PFP AB2 346-0 Pre-Fire Plan Auxiliary Building Unit 2 346-0 Elevation 2B 1

FZ 11.2D-2 RHR Pump Room FZ 11.2D-2

PFP FHB 401-0 Pre-Fire Plan Fuel Handling Building 401-0 Elevation FZ 4

FZ 12.1-0 12.1-0 PLAN #176

PFP FHB 426-0 Pre-Fire Plan Fuel Handling Building 426-0 Elevation FZ 3

FZ 12.1-0, Rev 12.1-0

003

PFP TB1 426-0 Pre-Fire Plan Turbine Building Unit 1 426-0 Elevation 3

FZ 8.5-1 SE General Area FZ 8.5-1 Southeast Plan #71

PFP TB1 426-0 Pre-Fire Plan Turbine Building Unit 1 426-0 Elevation 3

FZ 8.5-1 SW General Area - SW FZ 8.5-1 Southwest Plan #72

Miscellaneous FPR Chapter 2.3 Fire Area Analysis 2e

Procedures BAR 2PM09J-A14 0VC02FB 2S-4 1

71111.06 Calculations 3C8-1281-001 Aux Building Flood Level 12

71111.07A Corrective Action 4516367 NRC ID: Paint Peeling on Outside Acid Tank Building 08/11/2022

Documents

Resulting from

Inspection

71111.11Q Miscellaneous 22-4-1 Cycle 22-4 OBE 03/24/2022

71111.12 Corrective Action 4513808 1FC02F - Water Found After Removing the Filter Floor Plug 07/29/2022

Documents 4514880 Unexpected Alarm Pressurizer Pressure Low 08/04/2022

Drawings 6E-1-4001A Station One-Line Diagram U

6E-2-4031RY02 Loop Schematic Diagram Pressurizer Pressure G

Inspection Type Designation Description or Title Revision or

Procedure Date

Procedures BHP 4200-172 System Auxiliary Transformer Preventive Maintenance 7

Inspection

BOP AP-51 Isolating Unit 1 System Aux Transformer 142-1 And 142-2 21

While Unit is at Power

Work Orders 5122221 Minor Overhaul 07/28/2022

27822 Calibration of the Pressurizer Pressure Protection Channel08/04/2022

71111.13 Calculations 19.13.0-BYR15-Evaluation of Fuel Handling Building at Elevation 411'-0" for 0

109 Loads Associated with the Temporary Placement of

Shipping Casks

8.1.3-BYR16-018 Evaluation of Fuel Handling Building EL 411 In-Place 1

Structure for Additional Loading from Panels 0EW10EA and

0AP132EA BYR16-018

ECR 418511 Laydown Area for MPC Lid on EL. 411 OF FHB 04/03/2015

Corrective Action 4518829 NRC Identified MPC Lid Staging on 411' 08/25/2022

Documents

Resulting from

Inspection

Drawings M-27, Sheet 7 Equipment Removal Fuel Handling Building Units 1 & 2 D

S-1706 Auxiliary Building Floor Loading Diagram Misc. Plans C

S-812 Fuel Handling Building Ground Floor Framing Plan ELEV AI

401-0 AREA 2

Engineering 374705 Evaluation of FHB Structure for ISFSI Equipment Laydown 0

Changes Areas

637035 Evaluation of Rigging for Unit 1 Spent Fuel Pool Cooling 0

Pump (1FC01P) Motor

Procedures BFP FH-69 HI-TRAC Movement within the Fuel Building - ISFSI 35

BFP FH-70 HI-TRAC Loading Operations - (ISFSI) 33

BMP 3000-1 Control of the Movement of Heavy Loads 22

Work Orders 5135929 SS Inspection and Testing PM - SAT 142-1 09/17/2022

5136095 LT Pump/Motor - Onetime 1FC01P Motor Replacement 07/11/2022

5136977 SS Inspection and Testing PM - SAT 142-2 09/17/2022

5181453 Dry Cask Storage Campaign (2022) 09/20/2022

278894-03 WM Kilovac Relay Replacement 2 PL08J-4X3A 08/19/2022

71111.15 Corrective Action 4371195 EDG Kilovac Control Relay failure susceptibility 09/22/2020

Inspection Type Designation Description or Title Revision or

Procedure Date

Documents 4511789 Gas Void Detected in 1SI06BA-24" Near 1SI8811A 07/19/2022

4512817 2FP010 Increasing Stroke Time 07/25/2022

4515366 Unexpected 0A SX Makeup Pump (0SX02PA) Auto Start 08/06/2022

21501 Relief Valve Failed As-Found Test 09/09/2022

22015 Sheared Bolt Head On 1A DG 09/13/2022

Engineering 379408 Past Operability Evaluation of Gas Void at 1SI8811A 0

Evaluations

Work Orders 5237431 Create a WO to test 2SI121A (Scope Expansion for 09/12/2022

1SI121B)

253389-01 2BOSR 6.3.5-4 (EWP), STT for 2FP010 (WK J) 07/25/2022

270802 U1 Monthly Gas Void UT Exams 07/20/2022

71111.18 Engineering 634165 Lifting AR-VD52X Trip Contact for DG Room 1A Supply Fan 0

Changes 1VD01CA

71111.19 Corrective Action 04519060 1FI-0513 Steam Flow Channel Failed High 08/27/2022

Documents IR 4512903 2A SAC High Bearing Oil Temperature 07/26/2022

Engineering 455613 Request For Engineering to Provide Methodology for 08/30/2022

Changes Testing New Style (6D30740G01) NMD Card for Steam

Flow Function in SF/FF Mismatch Loops

637389 Determination of New Channel Gains for Updated 7300 0

DETERMINATION NMD Card (6D30740G01)

OF NEW

CHANNEL GAINS

FOR UPDATED

7300 NMD CARD

Miscellaneous TRP 1FW-0515 Calibration of Steam Generator 1A Steam Flow/Feed Flow 10

Mismatch (FW) Protection Set II

Procedures 2BOSR 5.5.8.SI.5-Unit Two Group A Inservice Testing (IST) Requirements for 7

1a Safety Injection Pump 2SI01PA

BISR 3.2.10-200 Surveillance Calibration of Steam Generator Steam 20

Flow/Feed Flow Mismatch Protection Set I And II (FW)

Work Orders 05288015-01 EWP IM Troubleshoot 1A SG Steam Flow Channel 08/27/2022

1FI-0513

5083557-06 EWP IM PMT: Perform 0BISR 7.10.2-4 Halide Test 07/13/2022

Inspection Type Designation Description or Title Revision or

Procedure Date

5101493 0B Control Room Makeup System Charcoal Adsorber Bank 07/13/2022

Operability

5135571-02 OP 2BOSR 5.5.8.SI.5-1a SI ASME Pump Run 09/06/2022

5168382 External/Internal Inspection/Thermography 07/28/2022

282389 Calibration of Ess SW Clg Twr Basin 0A Lvl Sw 0LS-SX096 08/09/2022

71111.22 Corrective Action 4511047 NRC ID: Junction Box Door Found Open - 2JB2093A 07/14/2022

Documents 4517210 NRC ID: 0FX02PB Low Oil Level 08/16/2022

Resulting from 4517213 NRC ID: NRC Flex Building Walkdown 08/16/2022

Inspection

Procedures 1BOSR Unit One Group B Inservice Testing (IST) Requirements for 14

5.5.8.AF.5-1b Motor Driven Auxiliary Feedwater Pump 1AF01PA

BOP AF-5 Motor Driven Auxiliary Feedwater Pump _A Startup on 33

Recirc

BOP AF-6 Motor Driven Auxiliary Feedwater Pump _A Shutdown 26

Work Orders 05267096-01 LR-(NEIL)-1AF01PA GRP B IST Requirements for Motor 09/02/2022

Driven AF

5110628 Calibrate Electronic Portion of AF Loop 07/11/2022

235105 Unit 0 FLEX Equipment Inventory Surveillance 08/29/2022

258941 LR-OPS 2BOSR 5.5.8.AF.5-2B - 2B AF Group B Test 07/15/2022

266248-1 OPS 1BOSR 5.5.8.SI.5-2A 1B SI IST Group A Pump Test 08/11/2022

267098 (NEIL) - 1CC01PA Comprehensive IST Reqmts for CC 08/04/2022

Pump

272240 2BOSR 7.5.4-2, 2B AF PP Run 07/14/2022

71152S Corrective Action 4373330 Water Accumulation in the 1FC02F Vault 09/30/2020

Documents 4391130 Active Leak Identified in 1FC02F Vault 12/18/2020

4445731 Active Leak Identified in 1FC02F Vault 09/10/2021

4492901 Active Leak Identified in 1FC02F Vault 04/13/2022

Corrective Action 4515003 NRC ID - Keys in Vehicle Inside PA 08/04/2022

Documents 4517343 NRC ID: U1 Valve Aisle Dried Boric Acid 08/17/2022

Resulting from 4523779 NRC ID: Dried Boric Acid in Ductwork Downstream of 09/21/2022

Inspection 0VA346Y

23782 NRC ID: Dried Boric Acid in Ductwork Downstream of 09/21/2022

0VA347Y

Inspection Type Designation Description or Title Revision or

Procedure Date

23784 NRC ID: Dried Boric Acid in Ductwork Downstream of 09/21/2022

0VA354Y

23787 NRC ID: Dried Boric Acid in Ductwork Downstream of 09/21/2022

0VA355Y

15