IR 05000483/2023001

Integrated Inspection Report 05000483/2023001

ML23102A139
Person / Time
Site:	Callaway
Issue date:	04/12/2023
From:	Greg Werner NRC/RGN-IV/DORS/PBB
To:	Diya F Ameren Missouri
Werner G
References
IR 2023001
Download: ML23102A139 (1)

Text

April 12, 2023

SUBJECT:

CALLAWAY PLANT - INTEGRATED INSPECTION REPORT 05000483/2023001

Dear Fadi Diya:

On March 31, 2023, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at the Callaway Plant. On April 5, 2023, the NRC inspectors discussed the results of this inspection with Kent Scott, Site Vice President, and other members of your staff. The results of this inspection are documented in the enclosed report.

One finding of very low safety significance (Green) is documented in this report. This finding involved a violation of NRC requirements. We are treating this violation as a noncited 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 IV; the Director, Office of Enforcement; and the NRC Resident Inspector at the Callaway Plant.

If you disagree with a cross-cutting aspect assignment in this report, you should provide a response within 30 days of the date of this inspection report, with the basis for your disagreement, to the U.S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington, DC 20555-0001; with copies to the Regional Administrator, Region IV; and the NRC Resident Inspector at the Callaway Plant. 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, Signed by Werner, Gregory on 04/12/23 Gregory E. Werner, Chief 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: NPF-30 Report Number: 05000483/2023001 Enterprise Identifier: I-2023-001-0006 Licensee: Ameren Missouri Facility: Callaway Plant Location: Steedman, MO Inspection Dates: January 1 to March 31, 2023 Inspectors: S. Schwind, Senior Resident Inspector D. Bradley, Senior Resident Inspector S. Hedger, Senior Emergency Preparedness Inspector D. Nani, Project Engineer Approved By: Gregory E. Werner, Chief Projects Branch B 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 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

Failure to Implement Actions per Technical Specification 3.7.20 Cornerstone Significance Cross-Cutting Report Aspect Section Mitigating Green [H.11] - 71153 Systems NCV 05000483/2023001-01 Challenge the Open/Closed Unknown The inspectors reviewed a self-revealed Green noncited violation of Technical Specification 3.7.20 when the licensee failed to implement the required technical specification actions for a failure of the train A class 1E switchgear room air conditioning system.

Specifically, on October 25, 2022, the licensee identified condensation and frost on thermal expansion valve 1 which was indicative of a failure of the valve. Subsequently, on October 27, 2022, air conditioning unit SGK05A was discovered not running and then failed to start.

Technical Specification 3.7.20 was entered at that time, and the actions were satisfied.

Additional Tracking Items

Type Issue Number Title Report Section Status LER 05000483/2022-003-00 LER 2022-003-00 for 71153 Closed Callaway, Unit 1, Class 1E Electrical Air Conditioning System Thermal Expansion Valve Failure Resulted in Condition Prohibited by Technical Specifications

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.

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) centrifugal charging pump train B on January 4, 2023

(2) emergency diesel generator train A starting air system on January 11, 2023

(3) emergency exhaust train B on February 14, 2023

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

(1) The inspectors evaluated system configurations during a complete walkdown of train B of the motor-driven auxiliary feedwater system on January 17, 2023.

71111.05 - Fire Protection

Fire Area Walkdown and Inspection Sample (IP Section 03.01) (4 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) radioactive waste building general area, fire area RW-1 on January 9, 2023

(2) ultimate heat sink cooling tower trains A and B, fire pumphouse, and demineralized water plant, fire areas UNPH, USPH, and YD-1 on January 10, 2023

(3) turbine building 2000' elevation including the auxiliary boiler room and lube oil storage tanks room, fire areas TB1 and AB-1 on January 26, 2023

(4) auxiliary building 1974' elevation, train A emergency core cooling pump rooms on

March 6, 2023 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 March 20, 2023.

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 surveillance testing on January 18, 2023.

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

(1) The inspectors observed and evaluated simulator training activities on January 9, 2023.

71111.12 - Maintenance Effectiveness

Maintenance Effectiveness (IP Section 03.01) (2 Samples)

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

(1) anticipated transient without scram mitigating system actuation circuitry on January 4, 2023

(2) refrigerant leak on the train A control room air conditioning unit SGK04A on

September 27, 2022 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) failure of thermostatic expansion valve 1 (TXV-1) on the train A class 1E electrical equipment room air conditioning unit SGK05A on October 22, 2022

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) planned elevated risk for atmospheric steam dump work window on January 31, 2023

(2) planned elevated risk for motor-driven auxiliary feedwater pump train B work window on February 22, 2023

(3) elevated risk during emergent leak repair on essential service water train B on March 9, 2023

(4) planned elevated risk for emergency exhaust system train A work window on February 14, 2023

71111.15 - Operability Determinations and Functionality Assessments

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

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

(1) pressurizer heater capacity on January 19, 2023

(2) safety-related inverter fuses on January 24, 2023

(3) emergency diesel generator A starting air issue on March 1, 2023

(4) boric acid leak on safety injection pump train B discharge pressure relief valve on January 5, 2023

(5) emergency diesel generator train B exhaust leak on March 12, 2023

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)

(1) containment spray train A after a planned work window on February 8, 2023

(2) emergency diesel generator on March 2, 2023

(3) motor-driven auxiliary feedwater pump train A planned work window on March 15, 2023

Surveillance Testing (IP Section 03.01) (3 Samples)

(1) procedure OSP-NE-0001A, train A standby diesel generator periodic test on March 15, 2023

(2) procedure OSP-SA-0017B, train B safety injection and containment spray actuation system slave relay test on January 4, 2023

(3) procedure OSP-BG-P005B, train B centrifugal charging pump inservice test on

March 22, 2023 Inservice Testing (IST) (IP Section 03.01) (1 Sample)

(1) turbine-driven auxiliary feedwater system pump and valve inservice test on January 25, 2023

71114.06 - Drill Evaluation

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

(1 Sample)

(1) emergency response organization team 5 training drill on February 2, 2023

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

The inspectors evaluated:

(1) emergency preparedness dress rehearsal drill on February 28, 2023

71114.08 - Exercise Evaluation - Scenario Review

Inspection Review (IP Section 02.01 - 02.04) (1 Sample)

(1) The inspectors reviewed the licensee's preliminary exercise scenario that was submitted to the NRC on February 16, 2023 (ML23047A263 and ML23047A264), for the exercise scheduled to occur on April 18, 2023. The inspectors discussed the preliminary scenario with D. Harris, Manager, Emergency Preparedness, and other members of the emergency preparedness staff on March 8, 2023. The review does not constitute NRC approval of the scenario.

OTHER ACTIVITIES - BASELINE

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

MS06: Emergency AC Power Systems (IP Section 02.05) ===

(1) January 1, 2022, through December 31, 2022

MS10: Cooling Water Support Systems (IP Section 02.09) (1 Sample)

(1) January 1, 2022, through December 31, 2022 BI01: Reactor Coolant System (RCS) Specific Activity Sample (IP Section 02.10) (1 Sample)

(1) January 1, 2022, through December 31, 2022

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

(1) control of transient combustible material 71153 - Follow Up of Events and Notices of Enforcement Discretion Event Report (IP Section 03.02)

(1) The inspectors evaluated Licensee Event Report 05000483/2022-003-00, Class 1E Electrical Air Conditioning System Thermal Expansion Valve Failure Resulted in Condition Prohibited by Technical Specifications (ADAMS Accession No.

ML22355A440) (Closed).The inspection conclusions associated with this LER are documented below.

INSPECTION RESULTS

Failure to Implement Actions per Technical Specification 3.7.20 Cornerstone Significance Cross-Cutting Report Aspect Section Mitigating Green [H.11] 71153 Systems NCV 05000483/2023001-01 Challenge the Open/Closed Unknown The inspectors reviewed a self-revealed Green noncited violation of Technical Specification (TS) 3.7.20 when the licensee failed to implement the required TS actions for a failure of the train A class 1E switchgear room air conditioning system. Specifically, on October 25, 2022, the licensee identified condensation and frost on thermal expansion valve 1 (TXV-1) which was indicative of a failure of the valve. Subsequently, on October 27, 2022, air conditioning unit SGK05A was discovered not running and then failed to start.

Technical Specification 3.7.20 was entered at that time and the actions were satisfied.

Description:

On October 25, 2022, the licensee observed condensation and frost on TXV-1 for the train A class 1E switchgear room air conditioning system which was indicative of a valve malfunction. This observation was made 3 days after the system had been restored from significant online maintenance which included replacing the internal components of all four thermal expansion valves. The licensee documented this in condition report 202207056, which was closed to job 22004321, that had been written to investigate condensation and frost on the refrigerant lines. Operators reviewed the condition report and concluded that the condition did not affect operability of air conditioning unit SGK05A, since the compressor continued to operate, and temperatures were normal in the class 1E switchgear rooms.

On October 27, 2022, operators discovered that the compressor for air conditioning unit SGK05A was not running. The operators adjusted the thermostat, then attempted to start the compressor and it tripped offline. The licensee declared the system inoperable, initiated condition report 202207111, and implemented the actions of TS 3.7.20, as they began investigating the frosted lines using job 22004321. During troubleshooting, the licensee determined that the new valve internals for TXV-1 were binding in the old valve body, causing the valve to stick. In their investigation, the licensee also noted that the method of post-maintenance testing used did not explicitly test TXV-1 since this valve only operates during low compressor loading and the test occurred when the compressor was operating at a higher load.

The licensee determined that the train A class 1E switchgear room air conditioning system should have been declared inoperable on October 25 when condensation and frost had been observed on TXV-1. Technical Specification 3.7.20.A required immediate actions to compensate for this failure, along with other actions within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> or place the plant in hot standby (Mode 3) within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, which was not done.

Corrective Actions: The licensee generated a condition report to document the issues identified with the failure of TXV-1 and replaced the entire valve as well as similar valves that previously had only the internals replaced. An extent of condition reviewed other TXVs that had undergone similar maintenance and the post-maintenance test procedure was planned to be modified to test TXV-1 under appropriate operating conditions.

Corrective Action References: condition report 202207111

Performance Assessment:

Performance Deficiency: The licensees failure to recognize an inoperable condition on the train A class 1E switchgear room air conditioning system and implement the required TS actions was a performance deficiency.

Screening: The inspectors determined the performance deficiency was more than minor because it was associated with the Equipment Performance attribute of the Mitigating Systems cornerstone and adversely affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, the licensee did not recognize that frost on TXV-1 was indicative of a malfunction of the thermal expansion valve which rendered SGK05A inoperable.

Significance: The inspectors assessed the significance of the finding using IMC 0609, Appendix A, The Significance Determination Process (SDP) for Findings At-Power, Exhibit 2, Mitigating Systems Screening Questions, dated November 30, 2020. The finding was not a design or qualification deficiency and the train A class 1E switchgear maintained its PRA functionality, therefore it was determined to be of very low safety significance (Green).

Cross-Cutting Aspect: H.11 - Challenge the Unknown: Individuals stop when faced with uncertain conditions. Risks are evaluated and managed before proceeding. Plant personnel did not challenge the existence of condensation and frost on the refrigerant line of air conditioning unit SGK05A, a condition which commonly indicates a malfunction of a thermal expansion valve.

Enforcement:

Violation: Technical Specification 3.7.20.A requires that, upon discovery of an inoperable condition of one class 1E electrical equipment air conditioning train, immediate action be taken to implement mitigating actions, and verification of room temperatures less than or equal to 90°F within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and once per 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> thereafter, or to place the plant in Mode 3 within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

Contrary to the above, the licensee failed to recognize that the train A class 1E switchgear room air conditioning system was inoperable due to a malfunction of TXV-1 following maintenance. Specifically, from October 25 to October 27, 2022, the license failed to implement the actions of TS 3.7.20.A to immediately take mitigating actions and verify room temperatures less than or equal to 90°F within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and once per 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> thereafter or place the plant in Mode 3 within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. The licensee did not recognize the condition and failed to declare the system inoperable until a failure of the system was discovered two days later at which time the actions of TS 3.7.20.A were satisfied.

Enforcement Action: This violation is being treated as a noncited violation, consistent with Section 2.3.2 of the Enforcement Policy.

EXIT MEETINGS AND DEBRIEFS

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

On March 8, 2023, the inspectors presented the emergency preparedness exercise scenario review inspection results to Daniel Harris, Manager, Emergency Preparedness, and other members of the licensee staff.

On April 5, 2023, the inspectors presented the integrated inspection results to Kent Scott, Site Vice President, and other members of the licensee staff.

DOCUMENTS REVIEWED

Inspection Type Designation Description or Title Revision or

Procedure Date

71111.04 Corrective Action Condition Reports 202102997, 201303180, 201304626, 202003913,

Documents 202003966, 202005322, 202006843, 202100132,

2200531, 202200677, 202202221, 202203221,

2206944, 202207698, 202300378, 202300503,

2301002, 202301114

71111.04 Miscellaneous AL-29 Calculation: Auxiliary Feedwater System Performance 3

During a Feedline Break

71111.04 Miscellaneous RFR 16691 Evaluate CCP Lube Oil Pumps B

71111.04 Procedures E-0 Reactor Trip or Safety Injection 28

71111.04 Procedures EOP, AFW Emergency Valve Alignment 2

Addendum 18

71111.04 Procedures EOP, Aligning ESW to AFW Suction 4

Addendum 19

71111.04 Procedures EOP, HCST Alignment 4

Addendum 42

71111.04 Procedures ODP-ZZ-00002, Protected Equipment Program 34

Appendix 1

71111.04 Procedures OSP-KJ-V002A Diesel Generator Train A Air Start Check Valve Inservice 19

Test

71111.04 Procedures OTN-AL-00001 Auxiliary Feedwater System 39

71111.04 Procedures OTN-BG-00001, Shifting CCPs 8

Addendum 3

71111.04 Procedures OTN-GG-00001 Fuel Building HVAC System 32

71111.04 Procedures OTN-NE-0001A Standby Diesel Generator System - Train A 54

71111.04 Procedures OTS-AP-00001 Non-Safety Auxiliary Feedwater Pump Testing and 13

Operation

71111.04 Work Orders 22002058, 22511319, 18511587

71111.05 Miscellaneous Fire Preplan Manual 42

71111.05 Miscellaneous KC-45 Detailed Fire Modeling Report, Fire Compartment: A-2, 1

Auxiliary Building Safety-Related Pump Area, Auxiliary

Building, El. 1974

Inspection Type Designation Description or Title Revision or

Procedure Date

71111.05 Miscellaneous KC-68 Detailed Fire Modeling Report, Fire Compartment: C-21, 2

Lower Cable Spreading Room, El. 2032

71111.05 Miscellaneous KC-82 Fire Safety Analysis Calculation, KC-82, Fire Area, A-2 1

71111.05 Procedures APA-ZZ-00703 Fire Protection Operability Criteria and Surveillance 34

Requirements

71111.05 Procedures APA-ZZ-00750 Hazard Barrier Program 50

71111.11Q Miscellaneous T61.08108 LOCT Cycle 23-1 As-Found Scenario S-1

71111.11Q Procedures ODP-ZZ-00014 Operational Mode Change Requirements 57

71111.11Q Procedures OSP-NE-0001A Standby Diesel Generator A Periodic Tests 69

71111.11Q Procedures OTA-RK-00022 Annunciator Response Procedure MCB Panel RK022 2

71111.11Q Procedures OTO-AC-00003 Turbine Impulse Pressure Channel Failure 13

71111.11Q Procedures OTO-SA-00001 ESFAS Verification and Restoration 45

71111.11Q Work Orders 22514154

71111.12 Corrective Action Condition Reports 200302055, 200604849, 202207111, 202206395,

Documents 202300108

71111.12 Miscellaneous Maintenance Rule Performance Criteria 42

71111.12 Miscellaneous AC-34 Loop Uncertainty and Turbine Impulse Calibration 1

71111.12 Miscellaneous ZZ-50 ATWS AMSAC Setpoints 2

71111.12 Procedures APA-ZZ-00340, Surveillance Frequency Control Program List 15

Appendix 4

71111.12 Procedures APA-ZZ-00500, Maintenance Rule 35

Appendix 5

71111.12 Procedures EDP-ZZ-01128 Summary of SSC Performance Criteria 37

71111.12 Procedures EDP-ZZ-01128, SSCs in the Scope of the Maintenance Rule at Callaway 12

Appendix 1

71111.12 Procedures ISL-AC-0P505 Train A HP Turbine 1st Stage Pressure Protection 21

71111.12 Procedures ISL-AE-0LPS3 S/G A, B, C, D Narrow Range Level Protection Set 3 Loop 16

Calibration

71111.12 Procedures ITL-SS-00001 AMSAC System Logic Verification 13

71111.12 Work Orders 17513190, 14511419

71111.13 Procedures APA-ZZ-00315, Configuration Risk Management Program 0

Appendix A

Inspection Type Designation Description or Title Revision or

Procedure Date

71111.13 Procedures APA-ZZ-00322, Online Work Integrated Risk Management 25

Appendix F

71111.13 Work Orders 23000813

71111.15 Corrective Action Condition Reports 202102731, 202201245, 202206748, 2202300518,

Documents 202300461, 202301114, 202301569

71111.15 Miscellaneous Callaway Final Safety Analysis Report February

20

71111.15 Miscellaneous Technical Specifications

71111.15 Procedures APA-ZZ-00500, Operability Determinations 37

Appendix 1

71111.15 Procedures OSP-BB-00002 Pressurizer Heater Capacity Test 9

71111.15 Procedures OTO-NN-00001 Loss of Safety Related Instrument Power 38

71111.15 Work Orders 21001372, 21505990

71111.24 Corrective Action Condition Reports 202104209, 202105108, 202200677, 202201953,

Documents 202206698, 202207487

71111.24 Corrective Action Condition Reports 202301448, 202301449

Documents

71111.24 Procedures OSP-AL-P0002 Turbine Driven Auxiliary Feedwater Pump Inservice Test 82

71111.24 Procedures OSP-BG-P005B Centrifugal Charging Pump B Inservice Test - Group B 54

71111.24 Procedures OSP-EN-V001A Train A Containment Spray Valve Operability 23

71111.24 Procedures OSP-NE-0001A Standby Diesel Generator Periodic Test 69

71111.24 Procedures OSP-NE-0001B Standby Diesel Generator B Periodic Tests 69

71111.24 Procedures OSP-SA-0017B Train B SIS-CSAS Slave Relay Test 44

71111.24 Procedures OTN-NE-0001B, Diesel Generator B Post Maintenance Run for Fuel System 69

Addendum 3 Priming

71111.24 Work Orders 22512370, 16513654, 21508687, 19513692, 21004264

71114.06 Corrective Action Condition Reports 202301429, 202301431

Documents

71114.06 Miscellaneous Drill Scenario Package

71114.06 Miscellaneous Callaway Radiological Emergency Response Plan 54

71114.06 Miscellaneous Drill Guide Various

71114.06 Procedures APA-ZZ-00542, Post Trip Transient Equipment Evaluation 8

Appendix 3

Inspection Type Designation Description or Title Revision or

Procedure Date

71114.06 Procedures EIP-ZZ-00102 Emergency Implementing Actions 68

71114.06 Procedures EIP-ZZ-00240 Technical Support Center Operations 44

71114.06 Procedures EIP-ZZ-C0010 Emergency Operations Facility Operations 42

71114.08 Miscellaneous ULNRC-06797 Docket Number 50-483, Callaway Plant Unit 1, Union 2/16/2023

Electric Co., Renewed Facility Operating License NPF-30;

23 Callaway RERP Exercise

71114.08 Procedures EIP-ZZ-00101, Emergency Action Level Technical Bases Document 19

Addendum 2

71114.08 Procedures EIP-ZZ-00212 Protective Action Recommendations 33

71151 Miscellaneous RCS Activity Data Sheets Various

71151 Procedures MSPI Data Sheets Various

71152A Corrective Action Condition Reports 202208536; 202300351; 202300467; 202300669;

Documents 202300709, 202301820

71152A Procedures APA-ZZ-00741 Control of Combustible Materials 39

71153 Corrective Action Condition Reports 202207007, 202207111, 202207056, 202208353,

Documents 202302021

71153 Miscellaneous M-622.1-00061 Sporlan Thermostatic Expansion Valves; Installation, Field October

Service, and Assembly 2005

13