IR 05000456/2020003
| ML20315A490 | |
| Person / Time | |
|---|---|
| Site: | Braidwood  |
| Issue date: | 11/10/2020 |
| From: | Hironori Peterson NRC/RGN-III |
| To: | Bryan Hanson Exelon Generation Co, Exelon Nuclear |
| References | |
| IR 2020003 | |
| Download: ML20315A490 (21) | |
Text
November 10, 2020
SUBJECT:
BRAIDWOOD GENERATING STATION - INTEGRATED INSPECTION REPORT 05000456/2020003 AND 05000457/2020003
Dear Mr. Hanson:
On September 30, 2020, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Braidwood Generating Station. On October 6, 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 NRC-identified or self-revealing findings were identified during this inspection.
A licensee-identified violation which was determined to be of very low safety significance is documented in this report. We are treating this violation as a non-cited violation (NCV)
consistent with Section 2.3.2 of the Enforcement Policy.
If you contest the violation or the significance or severity of the violation documented in this inspection report, you should provide a response within 30 days of the date of this inspection report, with the basis for your denial, to the U.S. Nuclear Regulatory Commission, ATTN:
Document Control Desk, Washington, DC 20555-0001; with copies to the Regional Administrator, Region III; the Director, Office of Enforcement; and the NRC Resident Inspector at Braidwood Generating Station. 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. 05000456 and 05000457 License Nos. NPF-72 and NPF-77
Enclosure:
As stated
Inspection Report
Docket Numbers:
05000456 and 05000457
License Numbers:
Report Numbers:
05000456/2020003 and 05000457/2020003
Enterprise Identifier: I-2020-003-0021
Licensee:
Exelon Generation Company, LLC
Facility:
Braidwood Generating Station
Location:
Braceville, IL
Inspection Dates:
July 01, 2020 to September 30, 2020
Inspectors:
R. Bowen, Illinois Emergency Management Agency
G. Edwards, Health Physicist
R. Edwards, Senior Health Physicist
D. Kimble, Senior Resident Inspector
P. Smagacz, Resident Inspector
Approved By:
Hironori Peterson, Chief
Branch 3
Division of Reactor Projects
SUMMARY
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting an integrated inspection at Braidwood Generating 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. A licensee-identified non-cited violation is documented in report section: 71111.1
List of Findings and Violations
No findings or violations of more than minor significance were identified.
Additional Tracking Items
None.
PLANT STATUS
Unit 1 and Unit 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/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.
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; observed risk significant activities, and completed on-site portions of IPs. In addition, resident and regional baseline inspections were evaluated to determine if all or a 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 some cases, portions of an IP were completed remotely and on-site. The inspections documented below met the objectives and requirements for completion of the IP.
REACTOR SAFETY
71111.01 - Adverse Weather Protection
Impending Severe Weather Sample (IP Section 03.02) (1 Sample)
- (1) The inspectors evaluated the adequacy of the overall preparations to protect risk-significant systems from an impending extreme/extended heat wave during the week ending July 11, 2020.
71111.04 - Equipment Alignment
Partial Walkdown Sample (IP Section 03.01) (3 Samples)
The inspectors evaluated system configurations and material condition during partial physical alignment verifications of the following systems/trains:
- (1) The spent fuel pool cooling (SF) system during the station's summer readiness period, concurrent with a spent fuel dry cask storage (DCS) loading campaign during the week ending July 18, 2020.
- (2) The 2B Safety Injection (SI) Train during maintenance on the 2A SI Train during the week ending August 29, 2020.
- (3) The 2B Auxiliary Feedwater (AF) Train during Unit 2 System Auxiliary Transformer (SAT) 242 maintenance during the week ending September 19, 2020.
Complete Walkdown Sample (IP Section 03.02) (1 Sample)
The inspectors evaluated system configurations and material condition during a full system physical alignment verification of the following system/train:
- (1) The Unit 2 emergency diesel generators (EDGs) during the weeks ending September 5 through September 12, 2020.
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 physical inspections/equipment verifications and performing reviews to verify program compliance, equipment functionality, material condition, and operational readiness for the following fire areas/zones:
- (1) Fire Zone 5.6-2; The Unit 2 Division 21 Miscellaneous Electric Equipment Room (MEER) and battery room during the week ending September 19, 2020.
- (2) Fire Zone 5.4-2; The Unit 2 Division 22 MEER and battery room during the week ending September 19, 2020.
- (3) Fire Zone 18.2-2; The 2A EDG Room and ventilation shaft during the week ending September 19, 2020.
- (4) Fire Zone 18.1-1; The 2B EDG Room and ventilation shaft during the week ending September 19, 2020.
- (5) Fire Zone 18.10E-1; The Unit 1 SATs 141-1 and 142-2 during the week ending September 19, 2020.
71111.06 - Flood Protection Measures
Inspection Activities - Internal Flooding (IP Section 03.01) (1 Sample)
The inspectors evaluated internal flooding mitigation protections and features for the following area:
- (1) The Unit 2 turbine building basement, Elevation 369', for a postulated/hypothetical main circulating water system failure during the weeks ending September 19 through September 26, 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 (MCR) during various activities involving on-watch operations crews during the weeks ending August 15 through September 30, 2020. These activities included, but were not limited to:
- Response of the MCR Unit 2 crew to a trip of the 2B Containment Ventilation (VP) Chiller and subsequent failure of the standby 2A VP Chiller to start during the week ending August 22, 2020.
Makeup Fan during the week ending September 5, 2020.
Licensed Operator Requalification Training/Examinations (IP Section 03.02) (1 Sample)
- (1) The inspectors conducted an observation of the performance of a complex casualty graded scenario by a crew of licensed plant operators in the facility's simulator on July 28, 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 function:
- (1) Maintenance effectiveness and performance history review of 0A and 0B VC Chiller units during the weeks ending August 1 through September 30, 2020.
- (2) Maintenance effectiveness and performance history review of the circulating water blowdown line and permitted radiological liquid effluent discharge path during the weeks ending August 1 through September 5, 2020.
Quality Control (IP Section 03.02) (1 Sample)
The inspectors evaluated the effectiveness of maintenance and quality control activities undertaken by the licensee to ensure the following SSC remained capable of performing its intended function:
- (1) Maintenance effectiveness and performance history review for the 2A EDG, specifically the EDG's Direct Current (DC) Control Circuit No.1, during the weeks ending August 22 through September 30, 2020.
71111.13 - Maintenance Risk Assessments and Emergent Work Control
Risk Assessment and Management Sample (IP Section 03.01) (4 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) Assessment of risk associated with summer 2020 DCS spent fuel loading campaign, specifically cask 3 of 6 (HI-STORM 912; MPC 32-409) in accordance with Work Order (WO) 4719945 during the weeks ending August 22 through August 29, 2020.
- (2) Assessment of risk associated with changes to the Unit 1 & 2 Westinghouse OvationTM digital control systems in accordance with WO 5054243 during the weeks ending August 15 through September 5, 2020.
- (3) Emergent work on the Unit 0 Station Air Compressor (SAC) to replace motor bearings in accordance with WO 5067011 during the weeks ending August 8 through September 5, 2020.
- (4) Assessment of risk associated with a planned SAT 242 maintenance window utilizing a Technical Specification (TS) Risk Informed Completion Time (RICT) in accordance with WO 4724683 during the week ending September 19, 2020.
71111.15 - Operability Determinations and Functionality Assessments
Operability Determination or Functionality Assessment (IP Section 03.01) (3 Samples)
The inspectors evaluated the licensee's justifications and actions associated with the following operability determinations and functionality assessments:
- (1) Assessment of the operability of the 0B VC Chiller after a step change in condenser pressure and identification of air in-leakage as documented in Issue Report (IR)
===4353544 during the weeks ending July 4 through July 11, 2020.
- (2) Assessment of the impact on the Unit 1 containment isolation function following identification of debris found in 1VQ025 as documented in IR 4365308 during the week ending August 29, 2020.
- (3) Assessment of the operability of the 2B EDG following the unexpected receipt of annunciator alarm 2-22-C8 for 2B EDG control power failure as documented in IR 4370636 during the weeks ending September 26 through September 30, 2020.
71111.19 - Post-Maintenance Testing
Post-Maintenance Test Sample (IP Section 03.01)===
The inspectors evaluated the following post maintenance testing activities to verify SSC operability and/or functionality, as applicable:
- (1) Return to service testing of the 0B Diesel Fire Pump after a jacket water leak repair in accordance with WO 5014782 during the week ending July 25, 2020.
- (2) Return to service testing of the 2A Containment Spray (CS) Pump following preventative maintenance in accordance with WO 4895576 during the weeks ending August 8 through August 15, 2020.
- (3) Testing of the Unit 2 Rod Drive Westinghouse OvationTM Logic after maintenance in accordance with WO 5054243 during the week ending August 15, 2020.
- (4) Testing of the Unit 1 Rod Drive Westinghouse Ovation' Logic after maintenance in accordance with WO 5054182 during the week ending August 22, 2020.
- (5) Functional and operational testing of the Unit 0 (Common) SAC following an extensive maintenance work window in accordance with WO 4737430 during the weeks ending August 8 through September 5, 2020.
71111.22 - Surveillance Testing
The inspectors evaluated the following surveillance testing activities:
Surveillance Tests (other) (IP Section 03.01)
- (1) Observation of 2BwOSR 3.8.1.2-2: The 2B EDG operability surveillance during the week ending July 25, 2020.
71114.06 - Drill Evaluation
Drill/Training Evolution Observation (IP Section 03.02) (1 Sample)
The inspectors evaluated the following emergency preparedness drill/training evolution:
- (1) Review of the implementation of the site's emergency plan by a crew of licensed operators during an evaluated emergency scenario in the facility's simulator on July 28,
RADIATION SAFETY
71124.06 - Radioactive Gaseous and Liquid Effluent Treatment
Walkdowns and Observations (IP Section 03.01) (3 Samples)
The inspectors evaluated the following radioactive effluent systems during walkdowns:
- (1) Unit 1, 1PR28J, Auxiliary Building ventilation system discharge to main plant vent stack.
- (2) Unit 2, 2PR28J, Auxiliary Building ventilation system discharge to main plant vent stack.
- (3) Unit 1, 1PR029, Auxiliary Building ventilation system radiation monitor.
Sampling and Analysis (IP Section 03.02) (3 Samples)
- (1) Inspectors evaluated compensatory samples.
- (2) Inspectors evaluated the sampling and sample analysis of the Unit 1 Auxiliary Building ventilation system discharge.
- (3) Inspectors evaluated the sampling and sample analysis of the Circulating Water Blowdown discharge.
Dose Calculations (IP Section 03.03) (2 Samples)
The inspectors evaluated the following dose calculations:
- (1) March 2019 liquid and gaseous effluent offsite dose calculations.
- (2) April 2019 liquid and gaseous effluent offsite dose calculations.
Abnormal Discharges (IP Section 03.04) (1 Sample)
The inspectors evaluated the following abnormal discharges:
- (1) No abnormal discharges occurred during this period.
OTHER ACTIVITIES - BASELINE
===71151 - Performance Indicator Verification
The inspectors verified licensee performance indicators submittals listed below:
MS08: Heat Removal Systems (IP Section 02.07)===
- (1) Unit 1 (July 1, 2019 through June 30, 2020)
- (2) Unit 2 (July 1, 2019 through June 30, 2020)
MS09: Residual Heat Removal Systems (IP Section 02.08) (2 Samples)
- (1) Unit 1 (July 1, 2019 through June 30, 2020)
- (2) Unit 2 (July 1, 2019 through June 30, 2020)
MS10: Cooling Water Support Systems (IP Section 02.09) (2 Samples)
- (1) Unit 1 (July 1, 2019 through June 30, 2020)
- (2) Unit 2 (July 1, 2019 through June 30, 2020)
71152 - Problem Identification and Resolution
Annual Follow-up of Selected Issues (IP Section 02.03) (1 Partial)
The inspectors reviewed the licensees implementation of the station corrective action program (CAP) related to the following issues:
(1)
(Partial)
In-depth review of various human performance issues, as well as the licensee's corrective actions, associated with the summer 2020 DCS loading campaign as documented in IR 4364058 during the weeks ending September 12 through September 30, 2020.
71153 - Follow-up of Events and Notices of Enforcement Discretion Event Follow-up (IP Section 03.01)
The inspectors assessed licensee performance related to the following events:
- (1) Review and tracking of licensee actions during the COVID-19 National Emergency declaration, as set forth by the President of the United States during the weeks ending July 4 through September 30,
INSPECTION RESULTS
Licensee-Identified Non-Cited Violation 71111.12 This violation of very low safety significance was identified by the licensee and has been entered into the licensee corrective action program and is being treated as a non-cited violation, consistent with Section 2.3.2 of the Enforcement Policy.
Violation: Appendix B to 10 CFR Part 50, Criterion V, Instructions, Procedures, and Drawings, requires that activities affecting quality shall be prescribed by documented instructions, procedures, or drawings of a type appropriate to the circumstances and shall be accomplished in accordance with these instructions, procedures, or drawings. Instructions, procedures, or drawings shall include appropriate quantitative or qualitative acceptance criteria for determining that important activities have been satisfactorily accomplished.
Contrary to this requirement, the licensees maintenance work instructions for the 0B Main Control Room Ventilation System (VC) Chiller, Work Order (WO) 5004208-24, 0WO01BC Dehydrator Inspection, which was designated by the licensee as a work order affecting quality, failed to contain instructions that were appropriate to the circumstances from the start of work on February 13, 2020, until work was stopped on February 21, 2020, upon completion of the task. Specifically, WO 5004208-24 failed to include details for the orientation dehydrator float valve assembly for the 0B VC Chiller condenser to ensure that the component was installed correctly.
Significance/Severity: Green. The inspectors assessed the significance of the finding using Inspection Manual Chapter (IMC) 0609, Attachment 4, Initial Characterization of Findings, dated December 20, 2019, and IMC 0609, Appendix A, The Significance Determination Process for Findings At-Power, dated December 20, 2019. Using Exhibit 2, Mitigating Systems Screening Questions, the inspectors determined that the finding was of very low safety significance (i.e., Green). Although the finding represented a deficiency affecting the design or qualification of a mitigating system, structure, or component (SSC), the 0B VC Chiller, neither the operability nor the probabilistic risk assessment (PRA) functionality of the SSC were lost due to the licensees ability to maintain condenser pressure within specifications via periodic manual venting.
Corrective Action References: Issue Report (IR) 4321449, 0B VC Chiller - 0WO1CB - Dehydrator Float Valve Assembly; IR 4351281, 0B VC Chiller Condenser Refrigerant Pressure High; and IR 4353544, 0B VC Chiller Condenser Pressure Step Change Noted
EXIT MEETINGS AND DEBRIEFS
The inspectors verified no proprietary information was retained or documented in this report.
- On October 6, 2020, the inspectors presented the integrated inspection results to Mr. J. Keenan, Site Vice President, and other members of the licensee staff.
- On August 3, 2020, the inspectors presented the radiation protection baseline inspection results to Mr. J. Keenan, Site Vice President, and other members of the licensee staff.
DOCUMENTS REVIEWED
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Corrective Action
Documents
4354661
Received Expected SX Discharge Temperature High Alarm
on Unit 2
07/04/2020
4354754
Received Expected SX Discharge Temperature High Alarm
on Unit 1
07/05/2020
4354805
0A VS Chiller Tripped on Low Refrigerant Evaporator
Temperature
07/06/2020
4354825
2C Condensate Booster Pump Lube Oil Temp Greater than
20 deg F
07/06/2020
4354978
1A Reactor Coolant Pump Lower Thrust Bearing Step
Change from 128 deg F to 139 deg F
07/06/2020
4355052
Unexpected Alarm; 1-7-D3 Reactor Coolant Pump Seal
Outlet Temp High (1B)
07/07/2020
4355375
Spent Fuel Pool Temperature Above Rounds Limit - Trend
Only
07/08/2020
4355498
1B VP Chiller Evaporator Pressure Reads Low 1PI-WO081
07/08/2020
Engineering
Changes
2041
Engineering Support Material for NOED - Ultimate Heat Sink
Temperature Increase to 103 deg F
07/07/2020
Procedures
0BwOA ENV-1
Adverse Weather Conditions Unit 0
23
0BwOS XHT-A1
Unit Common High Temperature Equipment Protection
Surveillance
EN-BR-402-005
Extreme Heat Implementation Plan
General Area Checks and Operator Field Rounds
OP-AA-108-107-
1001
Station Response to Grid Capacity Conditions
OP-AA-108-111-
1991
Severe Weather and Natural Disaster Guidelines
OP-BR-102-102-
1001
Augmented Operator Field Rounds
Seasonal Readiness
Drawings
M-50, Sheet 2
Diagram of Diesel Fuel Oil Unit 1 & 2
M-50, Sheet 3
Diagram of Diesel Fuel Oil Unit 1 & 2
AX
M-50, Sheet 5
Diagram of Diesel Fuel Oil Supply Units 1 & 2
I
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Procedures
BwOP AF-E2
Electrical Lineup - Unit 2 Operating
BwOP AF-M2
Operating Mechanical Lineup, Auxiliary Feedwater, Unit 2
BwOP DG-E3
Electrical Lineup - Unit 2 2A Diesel Generator
BwOP DG-E4
Electrical Lineup - Unit 2 2B Diesel Generator
BwOP DG-M3
Operating Mechanical Lineup Unit 2 2A D/G
BwOP DG-M4
Operating Mechanical Lineup Unit 2 2B D/G
BwOP DO-E2
Electrical Lineup - Unit 2 Diesel Lube Oil
BwOP DO-M10
Operating Mechanical Lineup Unit 2 D/G Fuel Oil Storage
BwOP DO-M12
Operating Mechanical Lineup Unit 2 D/G 2A Fuel Oil
BwOP DO-M14
Operating Mechanical Lineup Unit 2 D/G 2B Fuel Oil
BwOP FC-E1
Electrical Lineup - Unit 1
BwOP FC-E2
Electrical Lineup - Unit 2
1E1
BwOP FC-M1
Operating Mechanical Lineup Unit 1
BwOP FC-M2
Operating Mechanical Lineup Unit 2
BwOP SI-E2
Electrical Lineup - Unit 2 Operating
BwOP SI-M2
Operating Mechanical Lineup Unit 2
Fire Plans
Pre-Fire Plan No.
194
Fire Zone 18.1-2; Auxiliary Building 401' Elevation, Diesel
Generator 2B & Switchgear Room Air Shaft
Pre-Fire Plan No.
195
Fire Zone 18.1-2; Auxiliary Building 426' Elevation, Diesel
Generator 2B & Switchgear Room Air Shaft
Pre-Fire Plan No.
196
Fire Zone 18.1-2; Auxiliary Building 451' Elevation, Diesel
Generator 2B & Switchgear Room Air Shaft
Pre-Fire Plan No.
200
Fire Zone 18.2-2, Auxiliary Building 401' Elevation, Diesel
Generator 2A & Switchgear Room Air Shaft
Pre-Fire Plan No.
201
Fire Zone 18.2-2, Auxiliary Building 426' Elevation, Diesel
Generator 2A & Switchgear Room Air Shaft
Pre-Fire Plan No.
201
Fire Zone 18.2-2, Auxiliary Building 426' Elevation, Diesel
Generator 2A & Switchgear Room Air Shaft
Pre-Fire Plan No.
2
Fire Zone 18.2-2, Auxiliary Building 451' Elevation, Diesel
Generator 2A & Switchgear Room Air Shaft
Pre-Fire Plan No.
21
Fire Zone 18.10E; Outside 401' Elevation, Unit 1 System
Auxiliary Transformers 141-1 and 142-2
Pre-Fire Plan No.
Fire Zone 5.4-2; Auxiliary Building 451' Elevation, Unit 2
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Division 22 Miscellaneous Electric Equipment Room and
Battery Room
Pre-Fire Plan No.
Fire Zone 5.6-2; Auxiliary Building 451' Elevation, Unit 2
Division 21 Miscellaneous Electric Equipment Room and
Battery Room
Procedures
BwAP 1110-1
Fire Protection Program System Requirements
BwAP 1110-3
Plant Barrier Impairment Program
BwOP PBI-1
Plant Barrier Impairment Program Pre-Evaluated Barrier
Matrix
Plant Barrier Control Program
High Risk Fire Area Identification
ER-BR-600-1069
Braidwood Units 1 and 2 - Site List of High-Risk Fire Areas
Fire Protection System Impairment Control
Pre-Fire Plan Manual
Control of Transient Combustible Material
OP-AA-201-010-
1001
Operations On-Line Fire Risk Management
Corrective Action
Documents
4368854
Defects Found on the Circulating Water Expansion Joint
09/11/2020
Drawings
M-81, Sheet 1
Diagram of Turbine Building Equipment Drains
M-81, Sheet 12
Diagram of Turbine Building Equipment Drains Unit 2
H
71111.11Q Corrective Action
Documents
4347746
Crew 4 Failure During OBE [Out of the Box Evaluation]
06/03/2020
4347746
Crew 4 Failure During OBE [Out of the Box Evaluation]
06/03/2020
4356726
Crew 3 Failures During OBE
07/14/2020
Procedures
OP-AA-101-111-
1001
Operations Standards and Expectations
Operator Fundamentals
OP-AA-101-113-
1006
4.0 Crew Critique Guidelines
Watch-Standing Practices
OP-AA-103-102-
1001
Strategies for Successful Transient Mitigation
Operation of Plant Equipment
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Communications
OP-AA-108-107-
1002
Interface Procedure Between BGE/COMED/PECO and
Exelon Generation (Nuclear/Power) for Transmission
Operations
Operating Narrative Logs and Records
Reactivity Management
Systematic Approach to Training Process Description
Operator Training Programs
Conduct of Simulator Training and Evaluation
Examination Security and Administration
Simulator Management
TQ-BR-201-0113
Braidwood Training Department Simulator Examination
Security Actions
Corrective Action
Documents
252176
Unexpected Annunciator 2-21-C8, EDG 2A Trouble/Fail to
Start
05/28/2019
297811
Discovery on 0WO01CB
11/16/2019
297945
Intentionally Abbreviated Maintenance on 0WO01CB Purge
Unit Filter
11/17/2019
298002
Foreign Material Found in Refrigerant Filter Housing
11/17/2019
298245
Found Broken Pipe During Pressure Test
11/18/2019
21449
0B VC Chiller - 0WO01CB - Dehydrator Float Valve
Assembly
2/25/2020
4353544
0B VC Chiller Condenser Pressure Step Change Noted
06/29/2020
4353654
Air In-Leakage at Suction Elbow of 0B VC Compressor
06/30/2020
4353656
Air In-Leakage at Guide Vane Shaft Seal of 0B VC
Compressor
06/30/2020
4353657
Air In-Leakage at Oil Recovery Line of 0B VC Chiller
06/30/2020
4361255
SAC Work Window Lessons Learned
08/05/2020
4363448
Unexpected Annunciator 2-21-C8, EDG 2A Trouble/Fail to
Start
08/16/2020
436439
2A EDG 2PL07J-4X3A Terminal Screw is Broken
08/20/2020
708989
0A VC Chiller Purge Unity Refrigerant Level Not in Sight-
glass
2/07/2007
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
717908
Late Planning of WO 1089110-01 0A VC Chiller Purge Unit
01/03/2008
Drawings
20E-2-4030DG31
Schematic Diagram, Diesel Generator 2A Starting Sequence
Control, 2DG01KA Part 1
Engineering
Changes
630844
Evaluation Supporting Inspection for EC 629319 (Circulating
Blowdown Piping Inspection Scope Support)
Miscellaneous
Adverse Condition Monitoring and Contingency Plan;
0WO01CB (0B VC Chiller) Monitoring
07/15/2020
Procedures
Maintenance Rule Functions - Safety Significant
Classification
Maintenance Rule Implementation per NEI 18-10
Maintenance Rule 18-10 - Scoping
Maintenance Rule 18-10 - Failure Definitions
Maintenance Rule 18-10 - Performance Monitoring and
Dispositioning Between (a)(1) and (a)(2)
Work Orders
5004208-24
0WO01CB Dehydrator Inspection
2/13/2020
5069949
Unexpected Annunciator 2-21-C8, EDG 2A Trouble/Rail to
Start
08/20/2020
Corrective Action
Documents
4361010
0SA01C-M Oil Analysis
08/04/2020
4361255
SAC Work Window Lessons Learned
08/05/2020
4361295
Unit 0 SAC Outboard Motor Bearing Oil is Discolored
08/05/2020
4362665
0SA01C Oil Mist Eliminator
08/12/2020
4376411
Lessons Learned for Unit 2 SAT Use of RICT
10/13/2020
Engineering
Changes
631843
Ovation Software Update to Correct Rod Control (RD) Logic
Sheet Errors Causing Intermittent Urgent Failure Alarms
(Units 1 & 2)
Miscellaneous
Approved RICT Record for SAT 242 Maintenance Window
Completed RICT Record for SAT 242 Maintenance Window
09/25/2020
Procedures
1BwGP 100-8
Generic Reactor Control Guidance
Risk Management
On-Line Risk Management
Risk Management Support of RICT
Calculation of RMAT and RICT for Risk Informed Completion
Time Program
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
ER-BW-600-2001
Braidwood RICT System Guidelines
MA-AA0716-004
Conduct of Troubleshooting
Protected Equipment Program
Risk Informed Completion Time
On-Line Risk Management and Assessment
Work Orders
4719945-02
ISFSI Load and Process HI-STORM 912 / MPC 32-409
08/17/2020
5054182
Unit 1 RD Ovation Logic Error Causing UA Alarms
08/12/2020
5054243
Unit 2 RD Ovation Logic Error Causing UA Alarms
08/12/2020
Corrective Action
Documents
4353544
0B VC Chiller Condenser Press Step Change Noted
06/29/2020
4353654
Air In-Leakage at Suction Elbow of 0B BC Chiller
06/30/2020
4353654
Air In-Leakage at Suction Elbow of 0B BC Chiller
06/30/2020
4353656
Air In-Leakage at Guide Vane Shaft Seal of 0B VC Chiller
06/30/2020
4353657
Air In-Leakage at Oil Recovery Line of 0B VC Chiller
06/30/2020
4365308
Valve Plate and Debris Found in 1VQ02S
08/25/2020
4370636
Unexpected Alarm 2-22-C8, 2B Emergency Diesel
Generator Control Power Failure
09/19/2020
Procedures
Risk Management Documentation
Adverse Condition Monitoring and Contingency Planning
Operability Determinations (CM-1)
Radiation
Surveys
OP-AA-106-101-
1006
Operational Decision-Making Process
Corrective Action
Documents
4360835
Loose Fitting Caused Delay of Unit 0 Station Air Compressor
Surge Test
08/04/2020
Procedures
0BwOS SA-1
Unit 0 Station Air Compressor Surge Point Testing
On-Line Work Control Process
Work Orders
4737430-10
PMT 0SA01C - Surge Test and Functional
08/03/2020
4895576
Change Oil in Motor Bearings & Take Sample
08/06/2020
5014782
OFP03PB Diesel Driven Fire Pump Jacket Water Heater
Leak at fitting
07/22/2020
5052469
Diesel Driven Fire Pump Monthly Surveillance
07/23/2020
5054182
Unit 1 Rod Drive Ovation Logic Error Causing UA Alarms
08/17/2020
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
5054243
Unit 2 Rod Drive Ovation Logic Error Causing UA Alarms
08/13/2020
5061397
ISR for 2CS003A/11A-ASME Surveillance Requirements for
2CS01PA & Check Valves
08/06/2020
Procedures
2BwOSR 3.8.1.2-
Unit Two 2B Diesel Generator Operability surveillance
BwOP DG-1
Diesel Generator Alignment to Standby Condition
BwOP DG-11
Diesel Generator Startup and Operation
BwOP DG-12
Diesel Generator Shutdown
Work Orders
5052933
Inservice Testing: 2B EDG Monthly Operability Testing
07/22/2020
Procedures
Standardized Radiological Emergency Plan
Radiological Emergency Plan Annex for Braidwood Station
Corrective Action
Documents
Open EMS Software Non-Conservative for Waste Gas
Release
03/25/2019
Open EMS Software Issue for Liquid Releases
03/27/2019
0CW058 Vacuum Breaker #1 Gas Leak from Air Release
Valve
08/14/2019
Issues Identified with Open EMS
06/26/2020
Miscellaneous
BW200036
2019 Braidwood Nuclear Power Station Annual Radioactive
Effluent Release Report
2019
Interlab 2020
Radiochemistry Cross Check Program, 1st and 2nd Quarter
20
06/18/2020
Permit L-
20190105-314-B
Liquid Effluent Discharge
01/05/2019
Permit L-
20190213-016-B
Liquid Effluent Discharge
2/13/2019
Procedures
CY-BR-170-3001
Plant Effluent Dose Projections
CY-BR-170-301
Offsite Dose Calculation Manual
CY-BR-170-304
ODCM Quarterly Effluent Composite
CY-BR-170-3100
Alternate Sampling for Inoperable Automatic Samplers
Permit L-
20191101-103-C
Liquid Effluent Discharge
11/01/2019
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
Self-Assessments AR 04315192
Pre-NRC Inspection: Radioactive Gaseous and Liquid
Effluent Treatment (RETS) (IP 71124.06) and Radiological
Environmental Monitoring Program (REMP) (IP 71124.07)
05/28/2020
71151
Miscellaneous
NRC Performance Indicator Data; Mitigating Systems -
Mitigating Systems Performance Index for Heat Removal
Systems
07/2019-
06/2020
NRC Performance Indicator Data; Mitigating Systems -
Mitigating System Performance Index for Residual Heat
Removal Systems
07/2019 -
06/2020
NRC Performance Indicator Data; Mitigating Systems -
Mitigating System Performance Index for Cooling Water
Systems
07/2019 -
06/2020
Procedures
Collecting and Reporting of NRC Performance Indicator
Data
15-16
Mitigating System Performance Index Data Acquisition and
Reporting
6-7
Corrective Action
Documents
4364058
Forced Helium Drying Skid Issue
08/19/2020
4364205
Decontamination May Be Needed Under 426' Fuel Handling
Building Aluminum Decking
08/19/2020
Procedures
BwFP FH-34
Water Transfers of the Spent Fuel Pool, Wet Cask Pit or
Transfer Canal
BwFP FH-64
Transporter Operations
BwFP FH-65
Spent Fuel Cask Site Transportation
BwFP FH-67
Trackmobile Operations
BwFP FH-68
HI-TRAC Preparation
BwFP FH-69
HI-TRAC Movement Within the Fuel Building
BwFP FH-70
HI-TRAC Loading Operations
BwFP FH-72
HI-STORM Processing
BwFP FH-74
MPC Reflood
BwFP FH-83
Spent Fuel Cask Contingency Actions
Quality Assurance Topical Report (AQTR)
OU-MW-671-300
MPC Processing Forced Helium Dehydration (FHD) for
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
OU-MW-671-300
MPC Processing Forced Helium Dehydration (FHD) for
OU-MW-679-300
MPC Alternate Cooling for PWRs
Issue Identification and Screening Process
Corrective Action Program (CAP Procedure)
Root Cause Analysis Manual
Corrective Action Program Evaluation Manual
6