IR 05000483/2024003
| ML24291A255 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 10/23/2024 |
| From: | Ami Agrawal NRC/RGN-IV/DORS/PBB |
| To: | Diya F Ameren Missouri |
| Bloodgood M | |
| References | |
| IR 2024003 | |
| Download: ML24291A255 (14) | |
Text
October 23, 2024
SUBJECT:
CALLAWAY PLANT - INTEGRATED INSPECTION REPORT 05000483/2024003
Dear Fadi Diya:
On September 30, 2024, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at the Callaway Plant. On October 10, 2024, the NRC inspectors discussed the results of this inspection with T. Hart, Senior Director Nuclear Operations and Plant Manager, 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, Ami N. Agrawal, Branch Chief Reactor Projects Branch B Division of Operating Reactor Safety Docket No. 05000483 License No. NPF-30
Enclosure:
As stated
Inspection Report
Docket Number:
05000483
License Number:
Report Number:
Enterprise Identifier:
I-2024-003-0005
Licensee:
Ameren Missouri
Facility:
Callaway Plant
Location:
Steedman, MO 65077
Inspection Dates:
July 1 to September 30, 2024
Inspectors:
N. Brown, Resident Inspector
T. Farina, Senior Operations Examiner
S. Schwind, Senior Resident Inspector
H. Strittmatter, Resident Inspector
Approved By:
Ami N. Agrawal, Chief
Reactor Projects Branch B
Division of Operating Reactor Safety
SUMMARY
The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting an integrated inspection at the Callaway Plant, 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
The Callaway Plant began the inspection period at rated thermal power and remained at or near rated thermal power for the remainder of the 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
71111.04 - 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) Class 1E electrical system on July 15, 2024 (2)motor-driven auxiliary feed pump A following surveillance testing on July 31, 2024 (3)residual heat removal system train A on September 18, 2024
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 a walkdown and performing a review to verify program compliance, equipment functionality, material condition, and operational readiness of the following fire areas:
(1)control building 2016' elevation on July 9, 2024 (2)upper cable spreading room on July 16, 2024
Fire Brigade Drill Performance Sample (IP Section 03.02) (1 Sample)
- (1) The inspectors evaluated the onsite fire brigade training and performance during an announced fire drill on July 22, 2024.
71111.11A - Licensed Operator Requalification Program and Licensed Operator Performance
Requalification Examination Results (IP Section 03.03) (1 Sample)
- (1) The inspectors reviewed and evaluated the licensed operator examination failure rates for the requalification annual operating exam administered on August 23, 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 control room during monthly control rod repositioning on July 26, 2024.
Licensed Operator Requalification Training/Examinations (IP Section 03.02) (1 Sample)
- (1) The inspectors observed the simulator during the annual licensed operator exam on August 7, 2024.
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)emergency diesel generator B extended maintenance outage on July 8-18, 2024 (2)essential service water (a)(3) evaluation on July 24, 2024 (3)essential service water train B extended maintenance outage on September 2-9, 2024
Quality Control (IP Section 03.02) (1 Sample)
The inspectors evaluated the effectiveness of maintenance and quality control activities to ensure the following SSC remains capable of performing its intended function:
(1)replacement of the emergency diesel generator keep-warm pump on July 11, 2024
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)emergency diesel generator B extended outage using risk informed completion time on July 8, 2024 (2)failure of hydrogen mixing fan C to start during surveillance testing on July 3, 2024 (3)ground on 125 Vdc class 1E panel NK01 on July 8, 2024 (4)essential service water train B risk informed completion time outage on September 4, 2024
71111.15 - Operability Determinations and Functionality Assessments
Operability Determination or Functionality Assessment (IP Section 03.01) (7 Samples)
The inspectors evaluated the licensee's justifications and actions associated with the following operability determinations and functionality assessments:
(1)train A engineered safety feature actuation system automatic actuation logic and actuation relays on July 3, 2024 (2)125 Vdc class 1E bus on July 8, 2024 (3)failure of ECHV0011, fuel pool heat exchanger A shell side component cooling water outlet isolation valve on July 3, 2024 (4)non-conforming parts in safety related air conditioner compressors on July 18, 2024 (5)control room air conditioning train B on August 13, 2024 (6)loop 2 mainstream bypass isolation valve starters on September 9, 2024 (7)containment instrument tunnel sump lining on September 26, 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) (7 Samples)
(1)cable splice repair on output of security diesel generator on July 2, 2024 (2)post-maintenance testing following replacement of the emergency diesel generator B lube oil keep-warm pump on July 16, 2024 (3)post-maintenance testing following overhaul of emergency diesel generator B intercooler heat exchanger inlet/bypass temperature control valve KJTCV0156 on July 17, 2024 (4)post-maintenance testing following overhaul of emergency diesel generator B lube oil cooler inlet/bypass temperature control valve KJTCV0134 on July 17, 2024 (5)post-maintenance testing following replacement of emergency diesel generator B jacket water heater outlet pressure relief valve KJC0771B on July 17, 2024 (6)post-maintenance testing following replacement of emergency diesel generator B jacket water heater exchanger EKJ06B on July 17, 2024 (7)post-maintenance testing following replacement of essential service water train B piping on September 9, 2024
Surveillance Testing (IP Section 03.01) (3 Samples)
(1)security diesel generator loaded run on July 1, 2024 (2)emergency diesel generator B fast start and one hour loaded run on July 18, 2024 (3)main turbine and feedwater pumps steam admission valves on September 28, 2024
Inservice Testing (IST) (IP Section 03.01) (1 Sample)
(1)centrifugal charging pump A inservice test on July 24, 2024
Diverse and Flexible Coping Strategies (FLEX) Testing (IP Section 03.02) (1 Sample)
(1)480V generator FLEXG-480-1 load testing on August 19, 2024
71114.02 - Alert and Notification System Testing
Inspection Review (IP Section 02.01-02.04) (1 Sample)
- (1) The inspectors evaluated the licensee's maintenance, testing, and audit program for the alert and notification system between November 19, 2022, and September 20, 2024.
71114.03 - Emergency Response Organization Staffing and Augmentation System
Inspection Review (IP Section 02.01-02.02) (1 Sample)
- (1) The inspectors evaluated the readiness of the Emergency Preparedness Organization between November 19, 2022, and September 20, 2024. Inspectors also evaluated the licensee's ability to staff their emergency response facilities in accordance with emergency plan commitments.
71114.04 - Emergency Action Level and Emergency Plan Changes
Inspection Review (IP Section 02.01-02.03) (1 Sample)
- (1) The inspectors evaluated the following submitted Emergency Action Level and Emergency Plan changes.
- EIP-ZZ-00101 Addendum 2, Emergency Action Level Technical Bases, Revision 21
- EIP-ZZ-00101 Addendum 2, Emergency Action Level Technical Bases, Revision 22
- Radiological Emergency Response Plan, Revision 56 This evaluation does not constitute NRC approval.
71114.05 - Maintenance of Emergency Preparedness
Inspection Review (IP Section 02.01 - 02.11) (1 Sample)
- (1) The inspectors evaluated the maintenance of the emergency preparedness program between November 19, 2022, and September 20, 2024. The evaluation reviewed evidence of completing various emergency plan commitments, the conduct of drills and exercises, licensee audits and assessments, and the maintenance of equipment important to emergency preparedness.
OTHER ACTIVITIES - BASELINE
===71151 - Performance Indicator Verification The inspectors verified licensee performance indicators submittals listed below:
MS07: High Pressure Injection Systems (IP Section 02.06)===
- (1) July 2023 through June 2024
EP01: Drill/Exercise Performance (DEP) Sample (IP Section 02.12) (1 Sample)
- (1) April 1, 2023, through March 31, 2024 EP02: Emergency Response Organization (ERO) Drill Participation (IP Section 02.13) (1 Sample)
- (1) April 1, 2023, through March 31, 2024 EP03: Alert And Notification System (ANS) Reliability Sample (IP Section 02.14) (1 Sample)
- (1) This performance indicator is not tracked at the Callaway Plant due to them using Integrated Public Alert and Warning System (IPAWS) as their primary Alert and Notification System.
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 10, 2024, the inspectors presented the integrated inspection results to T. Hart, Senior Director Nuclear Operations and Plant Manager, and other members of the licensee staff.
- On August 23, 2024, the inspectors presented the annual requalification inspection 71111.11A inspection results to B. Bruemmer, Senior Training Supervisor, Operations Training, and other members of the licensee staff.
- On October 1, 2024, the inspectors presented the emergency preparedness program and performance indicator inspection results to J. Beck, Vice President, Nuclear Engineering and other members of the licensee staff.
DOCUMENTS REVIEWED
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
AFW Flow Paths Valve Alignment
Motor Driven Aux Feedwater Pump A Inservice Test,
Group A
Class 1E Electrical Source Verification
OTN-AL-00001
Auxiliary Feedwater System
OTN-EJ-00001
A Residual Heat Removal Valve, Checklist 5
Procedures
OTN-NB-0001A
4.16 KV Vital (Class 1E) Electrical System - A Train
Corrective Action
Documents
Condition Reports
2404855
Drill Planning and Authorization Form
07/10/24
Fire Preplan Manual
Miscellaneous
KC-133
Fire Safety Analysis for Fire Area C-22
OTO-KC-00001,
Addendum C-13
Control Building 2016' Access Control and Electrical
Equipment A/C Units Room Number 1
OTO-KC-00001,
Addendum C-14
Control Building 2016' Access Control and Electrical
Equipment A/C Units Room Number 2
OTO-KC-00001,
Addendum C-15
Control Building 2016' Switchboard and Battery Rooms 2
and 4
OTO-KC-00001,
Addendum C-16
Control Building 2016' Switchboard and Battery Rooms 1
and 3
OTO-KC-00001,
Addendum C-17
Control Building 2016' Electrical Chase South
OTO-KC-00001,
Addendum C-18
Control Building 2016' Electrical Chase North
OTO-KC-00001,
Addendum C-19
Control Building 2016' Cable Chase A (North)
OTO-KC-00001,
Addendum C-20
Control Building 2016' Electrical Chase South
Procedures
OTO-KC-00001,
Addendum C-22
Control Building 2073' Upper Cable Spreading Room
Miscellaneous
Table 03.03-1
Examination Results
08/23/2024
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
CTM-OPS
Callaway Training Manual - Operations Training Programs
CTM-OPS,
Addendum 9
Callaway Training Manual - Exam Information
Miscellaneous
CTM-OPS,
Addendum 10
Callaway Training Manual - Conduct of Simulator Training
and Evaluation
Procedures
OTS-SF-00001
Control Rod Repositioning
Corrective Action
Documents
Condition Reports
200510235, 202403368, 202404667, 202404716,
2404724, 202404732, 202404733, 202404743,
2404858, 202405685, 202405773, 202405782
Work Orders
Jobs
17512974, 18002469, 22000919
Corrective Action
Documents
Condition Reports
201900406, 202404589,202404952, 202405757, 202405775
Risk-Managed Technical Specifications (RMTS) Guidelines
Risk-Informed Technical Specifications Initiative 4b
RICT 2024-04
RICT Projection Details
RMS Report
09/04/2024
Miscellaneous
RICT 2024-05
CA3326
APA-ZZ-00315
Risk Management Actions
APA-ZZ-00315,
Appendix D
Risk Informed Completion Time (RICT) Program
Procedures
Train A SIS Slave Relay Test
Work Orders
Jobs
24002306
Corrective Action
Documents
Condition Reports
201900406, 202005276, 202403828, 202404456,
2404587, 202404589, 202404620, 202404633,
2404646, 202404648, 202404896, 202405746,
2406120, 202406164
SLNRC 85-8-Correspondence-9335684-1
2/19/85
SLNRC 85-4-Correspondence-9335646-1
01/25/85
Miscellaneous
GN-M-005-
Calculation-
11946240-1
Engineering judgement regarding the adequate mixing of
containment atmosphere Post-LOCA assuming the HMFs
are not operating
2/91
APA-ZZ-00500,
Appendix 1
Procedures
APA-ZZ-00662
ASME Section XI Repair/Replacement Program
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
APA-ZZ-00662,
Appendix A
ASME Section XI Repair/Replacement Program Mandatory
Requirements
APA-ZZ-00662,
Appendix E
ASME Section XI Repair/Replacement Matrix
APA-ZZ-00662,
Appendix G
ASME Section XI Repair/Replacement Program Mandatory
Requirements Class MC and CC Items and Their NF
Supports Third Inspection Interval
MTE-ZZ-QB002
Battery Charger Maintenance, Field Adjustments, and
Troubleshooting
Train A SIS Slave Relay Test
OTO-NK-00001
Failure of NK Battery Charger
Work Orders
Job
20003148
Corrective Action
Documents
Condition Reports
201406079, 202404454, 202404489, 202404492,
2404493, 202405685, 202405695, 202405773,
2405782
APA-ZZ-00322,
Appendix E
Post-Maintenance Test Program
EDP-ZZ-01111
Vibration Predictive Maintenance Program
ISO-AC-00001
Turbine Control Valve Stroke Test
MTT-ZZ-1004A
Raychem Heat Shrink Installation
OOA-XX-0G480
FLEX-480-1(2) CAT Diesel Generator Operator Aid
Turbine Control Valve Stroke Test
Combined Intermediate Valve Stroke Test
Centrifugal Charging Pump A Inservice Test - Group B
Standby Diesel Generator B Periodic Tests
OTS-FC-00001
Main Feedwater Pumps Turbine Operational Tests
Procedures
OTS-UB-00002
Security Diesel Generator Loaded Test
Work Orders
Jobs
23506477. 24002208, 18002469, 17512974, 20510630,
2505161, 22505176, 19111333, 20510694, 24500249,
23508764, 24001731
FEMA Approval Letter for ANS Design Report Revision 5
06/18/2024
Alert and Notification Evaluation Report
04/01/2024
Miscellaneous
Siren Test Data (Backup ANS) 2Q2023 and
2Q2024 - 3Q2024
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
IPAWS Annual Test
08/01/2024
IPAWS Annual Test
09/03/2024
ERO Augmentation Drill Off Hours Touch the Wall
11/10/2022
ERO Augmentation Drill
2/20/2023
Miscellaneous
ERO Augmentation Drill
09/24/2024
Procedures
EIP-ZZ-00200
Augmentation of the Emergency Response Organization
23027
50.54(q) Screen, CA2845 Revision 3, Protective Action
Recommendation Flowchart
07/06/2023
24002
50.54(q) Screen and Evaluation Form, Radiological
Emergency Response Plan, Revision 56
08/06/2024
24008
50.54(q) Screening and Effectiveness Evaluation Form,
Reduction of Siren Test Frequency
03/18/2024
2427
50.54(q) Screen, EAL Technical Bases Revision 22
09/30/2024
Miscellaneous
2428
50.54(q) Screen, EAL Technical Bases Revision 21
09/30/2024
Corrective Action
Documents
Condition Reports
2207884, 202207932, 202300300, 202300962,
2301262, 202301266, 202301267, 202301429,
2301431, 202301571, 202302116, 202302367,
2302639, 202302791, 202302808, 202304571,
2304981, 202305887, 202308923, 202308938,
2400105, 202401026, 202401648, 202403241,
2403243, 202403244, 202404433, 202404518,
2404704
Corrective Action
Documents
Resulting from
Inspection
Condition Reports
246087, 202406112, 202406133, 202406206
Callaway NRC 2024 Media Notification
Radiological Emergency Response Plan
and 56
Annual Emergency Response Organization Drill Report
August 2023 through December 2023
2/07/2024
Callaway Energy Center ERO Training Drill Report
January 4, 2024, through February 8, 2024
04/25/2024
Field Monitoring Team Drill 2023
11/07/2023
Miscellaneous
LOCT Cycle 23-2 DEP 1 and DEP 2 scenario and drill report
03/23/2023
Inspection
Procedure
Type
Designation
Description or Title
Revision or
Date
AP22005
Nuclear Oversight Audit of the Emergency Preparedness
Program
09/28/2022
AP24006
Nuclear Oversight Audit of the Emergency Preparedness
Program
08/20/2024
SP23002
Emergency Preparedness Review
09/28/2023
Offsite Training Work Orders 22510494, 22511629, 2351029
Work Orders
2000361, 23000616
71151
Miscellaneous
MSPI Train Unavailability/Monthly Reliability Data from July
23 through June 2024