IR 05000456/2020001

Integrated Inspection Report 05000456/2020001 and 05000457/2020001

ML20112F313
Person / Time
Site:	Braidwood
Issue date:	04/21/2020
From:	Hironori Peterson Region 3 Branch 3
To:	Bryan Hanson Exelon Generation Co, Exelon Nuclear
References
IR 2020001
Download: ML20112F313 (17)

Text

April 21, 2020

SUBJECT:

BRAIDWOOD STATION, UNITS 1 AND 2 - INTEGRATED INSPECTION REPORT 05000456/2020001 AND 05000457/2020001

Dear Mr. Hanson:

On March 31, 2020, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Braidwood Station, Units 1 and 2. On April 15, 2020, the NRC inspectors discussed the results of this inspection with Mr. J. Keenan, 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,

/RA/

Hironori Peterson, Chief Branch 3 Division of Reactor Projects Docket Nos. 50-456; 50-457 License Nos. NPF-72 and NPF-77

Enclosure:

As stated

Inspection Report

Docket Numbers: 05000456 and 05000457 License Numbers: NPF-72 and NPF-77 Report Numbers: 05000456/2020001 and 05000457/2020001 Enterprise Identifier: I-2020-001-0040 Licensee: Exelon Generation Company, LLC Facility: Braidwood Station, Units 1 and 2 Location: Braceville, IL Inspection Dates: January 01, 2020 to March 31, 2020 Inspectors: D. Betancourt-Roldan, Senior Resident Inspector J. Bozga, Senior Reactor Inspector D. Kimble, Senior Resident Inspector P. Smagacz, Resident Inspector J. Weigandt, Reactor Engineer R. Bowen, Illinois Emergency Management Agency Approved By: Hironori Peterson, Chief Branch 3 Division of Reactor Projects Enclosure

SUMMARY

The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting an integrated inspection at Braidwood Station, Units 1 and 2, 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

Units 1 and 2 both began the inspection period operating at full power. With the exception of minor reductions in power to support scheduled testing activities and load changes requested by the transmission system dispatcher, both units remained operating 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/readingrm/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. From January 1 - March 19, 2020, the inspectors performed plant status activities described in IMC 2515, Appendix D, Plant Status, and conducted routine reviews using IP 71152, Problem Identification and Resolution. 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.

Starting on March 20, 2020, in response to the National Emergency declared by the President of the United States on the public health risks of the coronavirus (COVID-19), resident inspectors were directed to begin telework and to remotely access licensee information using available technology. During this time the resident inspectors performed periodic site visits each week and during that time conducted plant status activities as described in IMC 2515, Appendix D; and observed risk significant activities when warranted. In addition, resident and regional baseline inspections were evaluated to determine if all or portion of the objectives and requirements stated in the IP could be performed remotely. If the inspections could be performed remotely, they were conducted per the applicable IP. In the cases where it was determined the objectives and requirements could not be performed remotely, management elected to postpone and reschedule the inspection to a later date.

71111.04 - Equipment Alignment

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

The inspectors evaluated system configurations during partial equipment alignment verifications of the following systems/trains:

(1) The Unit 0 and Unit 1 Station Air Compressors (SACs) with the 2A SAC undergoing commissioning testing (elevated risk activity) during the week ending February 22, 2020.

(2) The 2B Safety Injection (SI) Train during a 2A SI Train maintenance work window during the week ending February 29, 2020.

(3) The 1B Auxiliary Feedwater (AF) Train following return to service after maintenance during the week ending March 21, 2020.

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

(1) The inspectors evaluated system configurations during a complete alignment verification of the Unit 1 SI System during the weeks ending March 14, through March 28, 2020.

71111.05 - Fire Protection

Fire Area Walkdown and Inspection Sample (IP Section 03.01) (2 Samples)

The inspectors evaluated the implementation of the fire protection program by conducting physical inspections and reviews to verify program compliance, equipment functionality, material condition, and operational readiness of the following fire areas:

(1) Fire Zone 3.2A-2: Unit 2 Lower Cable Spreading Room during the week ending March 21, 2020.

(2) Fire Zone 4.5-2: Division 22 Miscellaneous Electrical Equipment Room and Battery Room during the week ending March 28, 2020.

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

(1) The inspectors evaluated the training and performance of the station's fire brigade during observation of an unannounced fire drill on January 31, 2020.

71111.06 - Flood Protection Measures

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

The inspectors evaluated the station's internal flooding mitigation protections for the following areas:

(1) The Unit 1 Diesel Fuel Oil Storage Rooms during the week ending January 25, 2020.

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 during various activities involving on-watch operations crews during the weeks ending February 22 through February 28, 2020.

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

(1) The inspectors observed and evaluated a crew of licensed operators during a graded casualty scenario in the station's simulator on January 30, 2020.

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) remained capable of performing their intended functions:

(1) The facility's permanently installed station air compressors (SACs) during the weeks ending January 25 through February 1, 2020.

(2) The Unit 2 pressurizer heaters during the weeks ending March 28 through March 31, 2020.

71111.13 - Maintenance Risk Assessments and Emergent Work Control

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

The inspectors evaluated the licensee's assessment of risk associated with the following planned and emergent work activities to ensure configuration changes and appropriate work controls were addressed:

(1) Various performance issues and repairs on all three SACs during the weeks ending January 25 through February 1, 2020.

(2) A 2A SI Cubicle Cooler maintenance window as documented in Work Order (WO)

===1931687 during the week ending February 29, 2020.

(3) Troubleshooting and repairs to the Unit 2 Containment Emergency Airlock as documented in WO 4640976 during the weeks ending March 14 through March 21, 2020.

71111.15 - Operability Determinations and Functionality Assessments

Operability Determination or Functionality Assessment (IP Section 03.01) ===

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

(1) Issues with structural fireproofing coatings in the Unit 2 Lower Cable Spreading Room as documented in IR 4304844 during the weeks ending January 18 through January 25, 2020.

(2) Issues with diesel generator jacket water leakage from the 2DG01KB-X2 lower cooler leak as documented in IR 4312030 during the weeks ending January 25 through February 1, 2020.

(3) An adverse trend associated with multiple issues/failures of Unit 2 pressurizer heaters as documented in IR 4322388 during the weeks ending March 14 through March 28, 2020.

(4) An emergent issue that resulted from a failure of the Unit 2 containment emergency airlock door interlocks as documented in IR 4325451 during the weeks ending March 14 through March 28, 2020.

71111.19 - Post-Maintenance Testing

Post-Maintenance Test Sample (IP Section 03.01) (2 Samples)

The inspectors evaluated the following post maintenance test activities to verify system operability and functionality:

(1) Functional acceptance testing for a newly installed fourth station air compressor (SAC 2A) per Engineering Change (EC) 627885 and as documented in Work Order (WO)

===4959489 during the weeks ending February 8 through February 22, 2020.

(2) Functional testing of the 1B AF Train following planned maintenance activities per WOs 4898748 and 5011451 during the weeks ending March 14 through March 21, 2020.

71111.22 - Surveillance Testing

The inspectors evaluated the following surveillance testing activities:

Surveillance Tests (other) (IP Section 03.01)

(1) 1BwOSR 3.8.1.2-2: 1B EDG Semiannual Surveillance during the week ending February 15, 2020.

Inservice Testing (IP Section 03.01) ===

(1) 2BwOSR 5.5.8.RH-5B: Group A Inservice Test Requirements for Residual Heat Removal Pump 2RH01PB during the week ending January 18, 2020.

(2) 1BwOSR 5.5.8.CS-3B: Comprehensive Full Flow Test for 1B Containment Spray Pump (1CS01PB), and Check Valves 1CS003B, and 1CS011B during the week ending March 14, 2020.

71114.06 - Drill Evaluation

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

(1 Sample)

(1) The inspectors observed and evaluated the station's Emergency Response Organization during the performance of a site-wide drill on February 1,

OTHER ACTIVITIES - BASELINE

===71151 - Performance Indicator Verification The inspectors reviewed and verified selected portions of the licensee's performance indicator submittals listed below:

IE01: Unplanned Scrams per 7000 Critical Hours Sample (IP Section 02.01) ===

(1) Unit 1 (January 2019 - December 2019)

(2) Unit 2 (January 2019 - December 2019)

IE03: Unplanned Power Changes per 7000 Critical Hours Sample (IP Section 02.02)

(2 Samples)

(1) Unit 1 (January 2019 - December 2019)

(2) Unit 2 (January 2019 - December 2019)

IE04: Unplanned Scrams with Complications (USwC) Sample (IP Section 02.03) (2 Samples)

(1) Unit 1 (January 2019 - December 2019)

(2) Unit 2 (January 2019 - December 2019)

71152 - Problem Identification and Resolution

Annual Follow-up of Selected Issues (IP Section 02.03) (1 Sample)

The inspectors reviewed the licensees implementation of their corrective action program related to the following issue:

(1) The notification of a Code nonconformance for the Unit 1 replacement steam generators as documented in IR 4272501 during the week ending February 22, 2020.

71153 - Followup of Events and Notices of Enforcement Discretion Event Followup (IP Section 03.01)

(1) For the COVID-19 National Emergency declared by the President of the United States, the inspectors performed various reviews and the tracking of licensee actions during the weeks ending March 21 through March 31, 2020.

Event Report (IP Section 03.02) (1 Partial)

The inspectors evaluated the following licensee event reports (LERs):

(1) (Partial)

LER 05000456/2019-001-00, Unit Trip on Low Steam Generator Level Due to Failure of a Controller on a Feedwater Regulating Valve. (ADAMS Accession Number ML19324D929)

The inspection conclusions associated with this LER are documented in Inspection Report 05000456/2020010 and 05000457/2020010. (ADAMS Accession Number ML20086G679)

INSPECTION RESULTS

Observation: Notification of Code Nonconformance for Replacements Steam 71152 Generators The inspectors performed a detailed review of Issue Report (IR) 4272501, Notification of Code Nonconformance for Replacements Steam Generators. The manufacturer of the licensees replacement steam generators (RSGs) for Byron Unit 1 and Braidwood Unit 1 had recently identified that volumetric examination of a nozzle weld repair that was accomplished by the manufacturer prior to the delivery of the RSGs to the licensee had not been performed, contrary to American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code,Section III, Class 1, requirements. The affected nozzles were the 3-inch diameter blowdown and recirculation nozzles. The nozzles were fabricated by weld metal buildup as permitted by NB-4244(c). The manufacturer determined that the nozzles required repair of surface indications; the manufacturers records did not indicate the depth of the excavations and no post-repair volumetric examinations were performed.Section III, Division 1, Subsection NB-4453.4 of the ASME Boiler and Pressure Vessel Code requires a volumetric exam when the excavation exceeds the lesser of 10 percent of the section thickness or 3/8 inch. For this Problem Identification and Resolution Annual Sample, the inspectors focused on assessment of the licensees corrective actions taken to date and those planned from this point forward.

The licensee performed an engineering change which included an ASME code class reconciliation for the 3-inch diameter blowdown and recirculation nozzles. This reconciliation involved a section by section evaluation applicable to nozzle weld buildups to determine the ASME Code Class 1 versus the ASME Code Class 2 requirements. The licensee determined based on their code class reconciliation that the blowdown and recirculation nozzles could be classified as ASME Code Class 2 (Subsection NC). Since Section III, Subsection NC (4453.4 and 5254), of the ASME Boiler and Pressure Vessel Code requires volumetric examination for nozzle weld buildups after weld repair only if the nozzles diameter is 6-inch or greater, this code reconciliation resolved the ASME Code nonconformance.

The inspectors concluded that the licensees actions taken in accordance with their corrective action program were reasonable given the overall safety significance of the issue. The inspectors did not identify any findings or violations of NRC requirements in the course of their review.

EXIT MEETINGS AND DEBRIEFS

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

• On April 15, 2020, the inspectors presented the integrated inspection results to Mr. J. Keenan, Site Vice President, and other members of the licensee staff.

DOCUMENTS REVIEWED

Inspection Type Designation Description or Title Revision or

Procedure Date

71111.04 Drawings M-61 Diagram of Safety Injection Sheet 1A BJ

M-61 Diagram of Safety Injection Sheet 6 AX

M-61 Diagram of Safety Injection Sheet 3 AR

Engineering M-61 Diagram of Safety Injection Sheet 1B BF

Changes

Fire Plans M-61 Diagram of Safety Injection Sheet 2 AJ

Procedures 1BwOSR 3.5.2.2- Unit One ECCS and CS Venting and Valve Alignment / UT 36

Verification Surveillance

BwOP AF-E1 Electrical Lineup - Unit 1 Operating 15

BwOP AF-M1 Operating Mechanical Lineup Unit 1 20

BwOP SA-E1 Electrical Lineup - Unit 1, Station Air System Operating 4

BwOP SA-E2 Electrical Lineup - Unit 2, Station Air System Operating 4

BwOP SA-M1 Operating Mechanical Lineup - Unit 0 24

BwOP SA-M2 Operating Mechanical Lineup - Unit 2 14

BwOP SI-E1 Electrical Lineup - Unit 1 Operating 12

BwOP SI-M1 Operating Mechanical Lineup Unit 1 27

Radiation Work 4964464 U1 ECCS V/V M2 Entry Ascending 10/20/2019

Permits (RWPs)

Work Orders 4987403 U1 ECCS Venting and Vlv Alignment Quarterly 03/05/2020

4993365 U1 ECCS Venting and Vlv Alignment Semi-Annual Inside 03/05/2020

Containment

71111.05 Fire Plans Pre-Fire Plan 76 Fire Zone 8.5-2; Tubine Building Mezzanine Floor (SE) 1

Pre-Fire Plan No. Fire Zone 3.2A-2; CSR 439 Unit 2, Nonsegregated Bus Duct 2

Area

Pre-Fire Plan Fire Zone 5.4-2; Division 22 Miscellaneous Electrical 1

No.48 Equipment Room and Battery Room, 451 Elevation

Miscellaneous Fire Drill Scenario Transient Combustible Fire 01/30/2020

20.20.01.30

Procedures BwAp 1110-1 Fire Protection Program System Requirements 44

BwAP 1110-3 Plant Barrier Impairment Program 38

71111.05 Procedures BwOP PBI-1 Plant Barrier Impairment Program Pre-Evaluated Barrier 3

Matrix

CC-AA-01 Plant Barrier Control Program 12

ER-AA-600-1069 High Risk Fire Area Identification 4

ER-BR-600-1069 Site List of High Risk Fire Areas - Braidwood Unit 1 and Unit 0

OP-AA-201-007 Fire Protection System Impairment Control 0

OP-AA-201-008 Pre-Fire Plan Manual 4

OP-AA-201-009 Control of Transient Combustible Material 24

OP-AA-201-009 Control of Transient Combustible Material 24

OP-AA-201-104 Fire Prevention for Hot Work 17

71111.06 Corrective Action 4210831 NRC Identified Removed 1OD01PA Staged too Close to 01/14/2019

Documents Transfer

Resulting from

Inspection

Drawings M-48 Diagram of Miscellaneous Sumps & Pumps BC

M-50 Diagram of Diesel Fuel Oil Unit 1 BA

71111.11Q Procedures OP-AA-101-102 Watch-Standing Practices 19

OP-AA-101-111- Operations Standards and Expectations 24

1001

OP-AA-101-113 Operator Fundamentals 14

OP-AA-101-113- 4.0 Crew Critique Guidelines 10

1006

OP-AA-103-102- Strategies for Successful Transient Mitigation 2

1001

OP-AA-103-103 Operation of Plant Equipment 1

OP-AA-104-101 Communications 4

OP-AA-108-107- Interface Procedure Between BGE/COMED/PECO and 12

1002 Exelon Generation (Nuclear/Power) for Transmission

Operations

OP-AA-111-101 Operating Narrative Logs and Records 16

OP-AA-300 Reactivity Management 14

TQ-AA-10 Systematic Approach to Training Process Description 6

TQ-AA-150 Operator Training Programs 18

TQ-AA-155 Conduct of Simulator Training and Evaluation 9

TQ-AA-201 Examination Security and Administration 17

TQ-AA-306 Simulator Management 9

TQ-BR-201-0113 Braidwood Training Department Simulator Examination 22

Security Actions

71111.12 Corrective Action 4305913 Unexpected Annunciator: 2-12-B6 12/23/2019

Documents 4308965 2RY03EB Heater 40 was Found Degraded 01/09/2020

4310328 Found 2 Heater Deficiencies 02/24/2020

4311227 Entry into 0/1/2 BwOA SEC-4 Lowering Instrument Air 01/19/2020

Header Pressure

4311429 Temporary Air Compressors Problems 01/20/2020

4311433 2SA01C Oil level Above High Mark on Sightglass 01/20/2020

4311692 2SA01C Oil Mist Emanating from Oil Mist Eliminator 01/21/2020

4311729 Small Amount of Valve Seat Rubber Material Missing 01/22/2020

0SA140

4311798 2SA01C U2 SAC Rising Vibrations 01/22/2020

4311924 0SA140 Installed without Internal Liner 01/22/2020

4312008 U-0 SAC Trip 01/23/2020

4312018 U1 SAC 2nd Stage Intercooler Leak 01/23/2020

4312287 Water Leaking from 2SA03M 01/23/2020

4312908 Water Found in Oil Sample of U2 Station Air Compressor 01/27/2020

(SAC)

21350 2RY03EA Breaker B5B was Found in Tripped Position 02/25/2020

22388 Trend IR for U2 RY Heaters 02/28/2020

Drawings 113E760 Pressurizer Heater Power Distribution Requirements and B

Suggested Heater Groupings

Miscellaneous EC 630430 Disconnect Unit 2 Pressurizer Heaters #17, #18, #40, #69, 1

1. 70 & Open Breakers 2RY03EA-B5A/B5B for Heaters #13,

1. 14, #37

Procedures ER-AA-310-1002 Maintenance Rule Functions - Safety Significant 3

Classification

ER-AA-320 Maintenance Rule Implementation per NEI 18-10 0

ER-AA-320-1001 Maintenance Rule 18-10 - Scoping 0

ER-AA-320-1003 Maintenance Rule 18-10 - Failure Definitions 0

ER-AA-320-1004 Maintenance Rule 18-10 - Performance Monitoring and 1

Dispositioning Between (a)(1) and (a)(2)

71111.13 Corrective Action 4311227 Entry into 01/2 BwOA SEC-4 for Lowering Instrument Air 01/19/2020

Documents Header Pressure

4311429 Temporary Air Compressor Problems 02/20/2020

4311798 2SA01C - Unit 2 SAC Rising Vibrations 01/22/2020

4311924 OSA140 Installed Without Internal Liner 01/22/2020

4312018 Unit 1 SAC 2nd Stage Intercooler Leak 01/23/2020

21013 2A Safety Injection Cubicle Cooler (2VA04SA) Divider Plate 02/24/2020

Requires Repair

Corrective Action 4312008 Unit 0 SAC Trip 01/23/2020

Documents

Resulting from

Inspection

Drawings M-54, Sheet 1A Diagram of Service Air - Units 1 and 2 AP

M-54, Sheet 1B Diagram of Service Air - Units 1 and 2 AL

M-54, Sheet 2 Diagram of Service Air - Units 1 and 2 AH

M-55, Sheet 1 Diagram of Instrument Air AF

Engineering EC 246977 Evaluate Minimum Wall Criteria and Gasket Mating Surface 0

Changes Requirements for Safety Injection Pump Cubicle Coolers

Operability BwAR 0-39-B2 SAC 2 Trouble 56

Evaluations

Procedures 1BwOA SEC-4 Loss of Instrument Air - Unit 1 107

2BwOA SEC-4 Loss of Instrument Air - Unit 2 106

BwAR 1-12-D7 Pressurizer PORV Supply Pressure High/Low 13

BwMP 3100- Installation and Removal of Temporary Air Compressors 1

077A1

BwOA SEC-4 Loss of Instrument Air - Unit 0 104

BwOP SA-1 Startup and Operation of Station Air Compressors 47 - 48

BwOP SA-2 Shutdown of the Station Air Compressors 24

BwOP SA-8 Aligning Service Air Compressor for Standby Operation 23

ER-AA-330-009 ASME Section XI Repair/Replacement Program 17

ER-AA-335-015- VT-2 Visual Examination in Accordance with ASME 2013 0

2013

ER-AA-340-1002 Service Water Heat Exchanger Inspection Guide 9

ER-AA-600 Risk Management 7

ER-AA-600-1042 On-Line Risk Management 11

MA-AA-716-004 Conduct of Troubleshooting 17

OP-AA-108-117 Protected Equipment Program 5

WC-AA-101-1006 On-Line Risk Management and Assessment 3

Work Orders 1931687 2VA04SA: Clean and Inspect 2A Safety Injection Pump 02/24/2020

Cubicle Cooler

4640976 Unit 2 Containment Emergency Airlock 03/12/2020

Troubleshooting/Repair

4989830 Hook Up Temporary Air Compressors 01/19/2020

71111.15 Corrective Action 4304844 Fireproofing Missing From Ceiling in Lower Cable Spreading 12/18/2019

Documents Room

4310367 2FIS-611 Initially Suspect During 2B RH ASME Run 01/14/2020

4312030 2DG01KB-X2 Jacket Water Lower Cooler Leak 01/23/2020

21350 2RY03EA Breaker B5B was Found in Tripped Position 02/25/2020

22388 Trend Issue Report for Unit 2 Pressurizer Heaters 02/28/2020

25451 Unit 2 Emergency Hatch Doors Unable to be Opened 03/10/2020

Procedures 2BwOSR 3.8.1.2- Unit Two 2B Diesel Generator Operability Surveillance 46

Work Orders 4995339 LR-IST-2B Emergency Diesel Generator Monthly 01/22/2020

Surveillance

71111.19 Corrective Action 4317383 Multiple Small Leaks on 2A Station Air Compressor 02/12/2020

Documents 4317384 2A Station Air Compressor Start Permissive Discovery 02/12/2020

4317760 2A Station Air Compressor Increase of Discharge Pressure 02/13/2020

4318080 2A Station Air Compressor - Oil Filter Differential Pressure 02/14/2020

Value is Not Valid

26219 Oil Level Out of Band for 1AF01PB - 1B Auxiliary Feed 03/12/2020

Pump

Engineering 627885 Install Fourth Station Air Compressor 2

Changes

Miscellaneous Night Shift Unit 1 Control Room Logs 03/13/2020

Procedures 1BwOSR Group A Inservice Testing Requirements for Unit 1 Diesel- 23

5.5.8AF-3B Driven Auxiliary Feedwater Pump

BwOP AF-7 Auxiliary Feedwater Pump B (Diesel) Startup on Recirc 50

CC-AA-107 Configuration Change Acceptance Testing Criteria 11

SPP 20-001 Modification Test for 2SA02C Station Air Compressor 0

WC-AA-101 On-Line Work Control Process 29

Work Orders 4959489 Install Fourth Station Air Compressor per EC 627885 03/03/2020

71111.22 Corrective Action 4310367 2FIS-611 Initially Suspect During 2B RH ASME Run 01/14/2020

Documents 4317240 1DG01KB-Y2: 1B Diesel Generator Lower Lube Oil Cooler 02/12/2020

Leak While Loading

27401 1BwOSR 5.5.8.CS-3B: 1B CS D/P EDG Uncertainties 03/17/2020

(CA2644573)

Procedures 1BwOSR 3.8.1.2- 1B Diesel Generator Operability Surveillance 45

1BwOSR Comprehensive Full Flow Test for 1B Containment Spray 20

5.5.8.CS-3B Pump (1CS01PB) and Check Valves 1CS003B, 1CS011B

2BwOSR Group A IST Requirements for Residual Heat Removal 21

5.5.8.RH-5B Pump 2RH01PB

BwOP DG-11 Diesel Generator Startup and Operation 51

BwOP DG-12 Diesel Generator Shutdown 30

BwOP-DG-1 Diesel Generator Alignment to Standby Condition 30

Work Orders 4952653 1B Diesel Generator Operability Semi-Annual Surveillance 02/12/2020

4983010 OP ASME Surveillance Requirement for 2B Residual Heat 01/14/2020

Removal Pump

5002800 1B Diesel Generator Operability Monthly Surveillance 02/12/2020

71114.06 Procedures EP-AA-1000 Standardized Radiological Emergency Plan 33

EP-AA-1001 Radiological Emergency Plan Annex for Braidwood Station 35

71151 Miscellaneous NRC Performance Indicator Data; Initiating Events - 01/2019 -

Unit/Reactor Shutdown Occurences 12/2019

NRC Performance Indicator Data; Initiating Events - 01/2019 -

Unplanned Power Changes per 7000 Critical Hours 12/2019

Procedures LS-AA-2001 Collecting and Reporting of NRC Performance Indicator Data 15

LS-AA-2010 Monthly Data Elements for NRC/WANO Unit/Reactor 5

Shutdown Occurrences

LS-AA-2030 Monthly Data Elements for NRC Unplanned Power Changes 5

per 7000 Critical Hours

71152 Corrective Action 4272501 Notification of Code Nonconformance for Replacements 08/16/2020

Documents Steam Generators

Corrective Action 4319744 NCR Identified Typo in UFSAR Table 3.9-6 02/20/2020

Documents

Resulting from

Inspection

Engineering EC 630375 Issue Revision 009 to Design Specification 18-1229648 for 0

Changes U1 BWXT Replacement Steam Generators

Procedures NO-AA-10 Quality Assurance Topical Report (QATR) 94

PI-AA-120 Issue Identification and Screening Process 10

PI-AA-125 Corrective Action Program (CAP Procedure) 7

PI-AA-125-1001 Root Cause Analysis Manual 5

PI-AA-125-1003 Corrective Action Program Evaluation Manual 5

15