IR 05000263/2022003

Reissue - Monticello Nuclear Generating Plant - Integrated Inspection Report 05000263/2022003

ML22321A223
Person / Time
Site:	Monticello
Issue date:	11/17/2022
From:	Laura Kozak NRC/RGN-III/DORS/RPB3
To:	Domingos C Northern States Power Company, Minnesota
References
IR 2022003
Preceding documents:	ML22139A309 (19 May 2022)
Download: ML22321A223 (21)

Text

SUBJECT:

REISSUE - MONTICELLO NUCLEAR GENERATING PLANT - INTEGRATED INSPECTION REPORT 05000263/2022003

Dear Christopher Domingos:

The NRC identified that the inspection report sent to you dated November 14, 2022, (ML22307A182) inadvertently omitted an inspection finding that was identified during the inspection period and discussed at the exit meeting. As a result, the NRC has re-issued the report in its entirety to contain the details of the inspection finding.

On September 30, 2022, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Monticello Nuclear Generating Plant. On October 6, 2022, the NRC inspectors discussed the results of this inspection with you 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 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 Monticello Nuclear Generating Plant.November 17, 2022 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 III; and the NRC Resident Inspector at Monticello Nuclear Generating 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, Laura L. Kozak, Acting Branch Chief Reactor Projects Branch 3 Division of Operating Reactor Safety Docket No. 05000263 License No. DPR-22

Enclosure:

As stated

Inspection Report

Docket Number: 05000263

License Number: DPR-22

Report Number: 05000263/2022003

Licensee: Northern States Power Company, Minnesota

Facility: Monticello Nuclear Generating Plant

Location: Monticello, MN

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

Inspectors: J. Corujo-Sandin, Senior Reactor Inspector T. McGowan, Senior Resident Inspector D. Melendez-Colon, Reactor Inspector V. Myers, Senior Health Physicist C. Norton, Senior Resident Inspector L. Rodriguez, Senior Reactor Inspector

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

Enclosure

SUMMARY

The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting an integrated inspection at Monticello Nuclear Generating 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 Maintain FLEX Equipment Consistent with the Requirements of 10 CFR 50.155(c)(2)

Cornerstone Significance Cross-Cutting Report Aspect Section Mitigating Green [H.14] - 71111.15 Systems NCV 05000263/2022003-01 Conservative Open/Closed Bias The inspectors identified a Green, very low safety significance, non-cited violation of 10 CFR 50.155(c)(2), mitigation of beyond-design-basis (BDB) events, in that the licensee failed to reasonably protect equipment relied on for the mitigation of BDB events from the effects of natural phenomena that are equivalent in magnitude to the phenomena assumed in developing the design basis of the facility. Specifically, in a misapplication FP-BDB-EQP-01,

Equipment Important to BDB Compliance, the FLEX forklift and FLEX front-end loader were routinely left unprotected from the effects of natural phenomena events for longer than allowed.

Additional Tracking Items

None.

PLANT STATUS

Monticello began the inspection period at rated thermal power. At 7:00 pm on August 29, 2022, the licensee lowered power to 95 percent of rated thermal power to accommodate wind and solar generation and returned to rated thermal power at 8:00 pm on August 29, 2022. At 2:00 am on September 25, 2022, the licensee lowered power to 85 percent of rated thermal power to accommodate wind and solar generation and returned to rated thermal power at 6:00 am on September 25, 2022. The unit 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.

71111.01 - Adverse Weather Protection

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

(1) The inspectors evaluated that flood protection barriers, mitigation plans, procedures, and equipment are consistent with the licensees design requirements and risk analysis assumptions for coping with external flooding on August 24, 2022.

71111.04 - Equipment Alignment

Partial Walkdown Sample (IP Section 03.01) (2 Samples)

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

(1) Division 1 250-volt dc system, protected train, containing battery 13 associated battery charger and dc distribution panel on July 26, 2022

(2) High pressure coolant injection system (HPCI) during work week window: 2238 on September 22, 2022

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

(1) The inspectors evaluated system configurations during a complete walkdown of emergency diesel generator (EDG) 12 system on September 16, 2022

71111.05 - Fire Protection

Fire Area Walkdown and Inspection Sample (IP Section 03.01) (5 Samples)

The inspectors evaluated the implementation of the fire protection program by conducting a walkdown and performing a review to verify program compliance, equipment functionality, material condition, and operational readiness of the following fire areas:

(1) Fire zone 13-B, reactor feed pump and lube oil reservoir room on July 05, 2022

(2) Fire zone 3-A, recirculation motor generator set room on July 05, 2022

(3) Fire zone 31-A, emergency filtration building (EFT) first floor, division 1 on July 05, 2022

(4) Fire zone 5-C, fuel pool skimmer tank room on July 06, 2022

(5) Fire zone 13-C, turbine building 911' elevation east MCC area on July 06, 2022

71111.06 - Flood Protection Measures

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

The inspectors evaluated internal flooding mitigation protections in the:

(1) Flood zone PAB-1

===71111.07T - Heat Exchanger/Sink Performance

Heat Exchanger (Service Water Cooled) (IP Section 03.02)===

The inspectors evaluated heat exchanger performance on the following:

(1) 13 Residual Heat Removal Service Water Pump Cooler (P-109C)

(2) 'A' Residual Heat Removal Room Air Cooling Unit (V-AC-5)

Ultimate Heat Sink (IP Section 03.04) (1 Sample)

The inspectors evaluated the ultimate heat sink performance on the following:

(1) The ultimate heat sink, specifically Sections 03.04.b and 03.04.c were completed

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 testing and the return to service of the HPCI system on September 22, 2022.

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

(1) The inspectors observed and evaluated integrated scenarios during shift 2 simulator training on August 11, 2022

71111.12 - Maintenance Effectiveness

Maintenance Effectiveness (IP Section 03.01) (4 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) Electric fire pump discharge air vent on August 10, 2022

(2) Secondary containment isolation dampers on August 31, 2022

(3) Core spray pump 11 relay maintenance, calibration, and testing on September 13, 2022

(4) HPCI turbine speed governor EG-M replacement on September 21, 2022

Aging Management (IP Section 03.03) (1 Sample)

The inspectors evaluated the effectiveness of the aging management program for the following SSCs that did not meet their inspection or test acceptance criteria:

(1) Steam jet air ejector valve failure on May 13, 2022

71111.13 - Maintenance Risk Assessments and Emergent Work Control

Risk Assessment and Management Sample (IP Section 03.01) (3 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) Emergent work activity to address water found in the residual heat removal (RHR)14 pump upper bearing oil reservoir sample on July 8, 2022

(2) Initial implementation of the FLEX maintenance provisions of FP-WM-SCH-01, online scheduling process, to repair shaft seal leak on P-902A, off gas recombiner condensate cooling pump 11 on July 14, 2022

(3) Emergent work activity to address steam leaks on HPCI system, root valves on July 27, 2022

71111.15 - Operability Determinations and Functionality Assessments

Operability Determination or Functionality Assessment (IP Section 03.01) (4 Samples)

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

(1) 501000066143, SW21-1 & SW22-1, residual heat removal service water (RHRSW)system to service water system check valves, failed inservice testing

(2) 501000066330, unable to dial out on phone system

(3) 501000066684, vibration data bad P109D, RHRSW pump 14

(4) 501000065942, flex forklift storage improvement

71111.18 - Plant Modifications

Temporary Modifications and/or Permanent Modifications (IP Section 03.01 and/or 03.02) (1 Sample)

The inspectors evaluated the following temporary or permanent modifications:

(1) Instrument air compressors controller upgrade

71111.19 - Post-Maintenance Testing

Post-Maintenance Test Sample (IP Section 03.01) (9 Samples)

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

(1) RHR 11 service water pump following pump replacement on July 1, 2022

(2) RHR 14 pump following motor upper bearing cooling water leak repair on July 8, 2022

(3) EDG 11 following planned preventive maintenance on July 13, 2022

(4) HPCI steam leak repairs (root isolation valves) on July 25, 2022

(5) Secondary containment isolation dampers on August 31, 2022

(6) Hydraulic control unit for CRD 10-39 (accumulator replacement) on September 06, 2022

(7) HPCI turbine stop valve on September 22, 2022

(8) HPCI turbine water induction protection system exhaust drain hi-hi level switch on September 22, 2022

(9) HPCI solenoid valve (CV-2043) on September 22, 2022

71111.22 - Surveillance Testing

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

Surveillance Tests (other) (IP Section 03.01) (4 Samples)

(1) Recombiner train outlet hydrogen analyzer surveillance on July 07, 2022

(2) Security system emergency diesel generator operability check on July 07, 2022

(3) Fire detection and instrumentation detector sensitivity check for battery rooms and cable spreading room on July 20, 2022

(4) HPCI system surveillance testing on September 22, 2022

Inservice Testing (IP Section 03.01) (1 Sample)

(1) HPCI quarterly pump and valve tests on July 08, 2022

71114.06 - Drill Evaluation

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

The inspectors evaluated:

(1) Licensed operator retraining scenario with graded emergency action level classification on September 26,

71124.07 - Radiological Environmental Monitoring Program

Environmental Monitoring Equipment and Sampling (IP Section 03.01) (1 Sample)

(1) The inspectors evaluated environmental monitoring equipment and observed collection of environmental samples.

Radiological Environmental Monitoring Program (IP Section 03.02) (1 Sample)

(1) The inspectors evaluated the implementation of the licensees radiological environmental monitoring program.

GPI Implementation (IP Section 03.03) (1 Sample)

(1) The inspectors evaluated the licensees implementation of the Groundwater Protection Initiative program to identify incomplete or discontinued program elements.

OTHER ACTIVITIES - BASELINE

===71151 - Performance Indicator Verification

The inspectors verified licensee performance indicators submittals listed below:

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

(1) July 1, 2021 through June 30, 2022

MS07: High Pressure Injection Systems (IP Section 02.06) (1 Sample)

(1) July 1, 2021 through June 30, 2022

MS08: Heat Removal Systems (IP Section 02.07) (1 Sample)

(1) July 1, 2021 through June 30, 2022

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

The inspectors reviewed the licensees implementation of its corrective action program related to the following issues:

(1) The inspectors reviewed the effectiveness of corrective actions associated with power to security equipment on July 7, 2022

(2) The inspectors reviewed the effectiveness of corrective actions associated with documentation annotation and the failure to follow own process governing documenting results in various field records on August 03, 2022

71152S - Semiannual Trend Problem Identification and Resolution Semiannual Trend Review (Section 03.02)

(1) The inspectors reviewed the licensees corrective action program for potential adverse trends in documentation that might be indicative of a more significant safety issue

(2) The inspectors reviewed the licensees corrective action program for potential adverse trends in status control (i.e., bump sensitive equipment) that might be indicative of a more significant safety issue

INSPECTION RESULTS

Failure to Maintain FLEX Equipment Consistent with the Requirements of 10 CFR 50.155(c)(2)

Cornerstone Significance Cross-Cutting Report Aspect Section Mitigating Green [H.14] - 71111.15 Systems NCV 05000263/2022003-01 Conservative Open/Closed Bias The inspectors identified a Green, very low safety significance, non-cited violation of 10 CFR 50.155(c)(2), mitigation of beyond-design-basis (BDB) events, in that the licensee failed to reasonably protect equipment relied on for the mitigation of BDB events from the effects of natural phenomena that are equivalent in magnitude to the phenomena assumed in developing the design basis of the facility. Specifically, in a misapplication FP-BDB-EQP-01, Equipment Important to BDB Compliance, the FLEX forklift and FLEX front-end loader were routinely left unprotected from the effects of natural phenomena events for longer than allowed.

Description:

The FLEX debris removal equipment was routinely left unprotected from the effects of natural phenomena events for longer than the one shift allowed by FP-BDB-EQP-01, Equipment Important to BDB Compliance, which states, "Debris removal equipment must be returned to their designated storage location after use or by the end of shift." Vehicles and tools are stored in either the FLEX building or Warehouse 6 which meet ASCE-7

(37) requirements.

The licensee justified that as long as the work was going to continue the next day or the next week, the equipment need not be returned to BDB protective storage at the end of shift. On July 27, 2022, the FLEX forklift was removed from BDB protective storage and returned on August 3, 2022. On August 11, 2022, the FLEX forklift was removed from BDB protective storage and returned on August 15, 2022. On August 17, 2022, the FLEX forklift was removed from BDB protective storage for preventive maintenance and was returned on August 30, 2022. On August 28, 2022, the licensee documented that while performing the severe weather checklist, the step requiring verification that all FLEX equipment was in its storage location could not be performed. On September 7, 2022, the FLEX front-end loader was removed from BDB protective storage for preventative maintenance. On September 15, 2022, a rental front end loader was obtained as corrective action for not having the FLEX front-end loader available. The FLEX front-end loader was repaired and returned to its storage location on September 30, 2022.

Corrective Actions: This issue was entered into the licensee corrective action program.

Corrective Action References: 501000065942, 501000066382, 501000066386

Performance Assessment:

Performance Deficiency: The licensee failed to reasonably protect equipment relied on for the mitigation of beyond-design-basis-events from the effects of natural phenomena that are equivalent in magnitude to the phenomena assumed in developing the design basis of the facility.

Screening: The inspectors determined the performance deficiency was more than minor because it was associated with the Protection Against External Factors 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 failed to protect equipment relied on for the mitigation strategies and guidelines from the effects of natural phenomena that are equivalent in magnitude to the phenomena assumed in developing the design basis of the facility.

Significance: The inspectors assessed the significance of the finding using IMC 0609 Appendix A, The Significance Determination Process (SDP) for Findings At-Power. The finding screened to green because, although it involved equipment credited in the FLEX strategy such that FLEX functions might not be completed in accordance with existing plant procedures within the time allotted, each exposure period was less than 21 days.

Cross-Cutting Aspect: H.14 - Conservative Bias: Individuals use decision making-practices that emphasize prudent choices over those that are simply allowable. A proposed action is determined to be safe in order to proceed, rather than unsafe in order to stop. Specifically, the inspectors determined that the licensee non-conservatively interpreted the FLEX debris removal equipment requirements of FP-BDB-EQP-01, Equipment Important to BDB Compliance, which states that the front-end loader and forklift can be removed from storage for non-FLEX use but must be returned to their storage location after use or by the end of shift. The licensee justified that as long as the work was going to continue the next day or the next week, the equipment did not need to be returned to storage at the end of shift.

Enforcement:

Violation: 10 CFR 50.155 (c)(2) requires that the equipment relied on for the mitigation strategies required to mitigate beyond-design-basis external events from natural phenomena be reasonably protected from the effects of natural phenomena that are equivalent in magnitude to the phenomena assumed for developing the design basis of the facility.

Contrary to this requirement, the licensee routinely left the FLEX forklift and the FLEX front-end loader unprotected for extended periods.

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

Observation: Follow-Up Review of Corrective Actions Associated with Past 71152A Documentation Annotation Pertaining to Maintenance and Surveillance Activities During the inspection period, the inspectors reviewed various documentation on recent preventive maintenance procedures and surveillance activities performed by site maintenance and operations personnel. The inspectors did not observe any issues pertaining to improper usage of markings for non-applicable steps, changing steps without appropriate approvals, or failure to perform independent verifications when required.

Observation: Corrective Actions Associated with Bump Sensitive Equipment 71152S On April 21, 2022, both fuel oil (FO) pumps, P-160B and P-160-D, were found running for emergency diesel generator (EDG) 12. Vortex considerations with both FO pumps running resulted in the inoperability but not the non-functionality of EDG 12. A vortex formed in the first 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of diesel operation at rated load would not have interrupted the flow of fuel from the storage tank to the day tank. The licensee returned the FO pumps to a normal lineup and declared EDG 12 operable. The licensee entered this issue into the corrective action program as QIM 50100062468, EDG FO pumps found running, EDG 12 inoperable. The licensee determined that workers likely bumped the switches while climbing a scaffold approximately three feet from the FO pump switches. The licensee protected the switches with covers to preclude future bumping.

On July 21, 2022, Xcel identified in QIM 501000064902 that Monticello had issues with status control of plant equipment that directly impacted emergency systems relied upon to protect public health and safety. The QIM established that workers were not effectively identifying and eliminating bump-sensitive component risks, consistently applying verification practices, and that marked status control areas were under-utilized to notify workers of sensitive equipment.

In August 2022, the licensee formed a multidisciplinary team to identify and recommend solutions to eliminate or reduce the risk associated with bump sensitive equipment. The team identified and initiated corrective actions for dozens of items.

Observation: Corrective Actions Associated with Power to Security Equipment 71152S On July 7, 2021, while testing security equipment, a component in the power supply failed to properly respond. The licensee entered this event into their corrective action program as quality issue management (QIM) 501000053835.The licensee performed an apparent cause evaluation and identified that the station personnel did not demonstrate adequate troubleshooting and teamwork needed to identify that a system was not properly configured.

Contributing causes included a lack of system knowledge, a lack of sensitivity to security significance, and inadequate procedures.

The inspectors verified that corrective actions to address the apparent cause and contributing causes were addressed. Corrective actions included revising the troubleshooting process to include security, revising operator rounds to include the component, training operators on these components, training security on the impacts of inoperable security equipment, revising the applicable test procedure to include clear prerequisite verification steps, updating security procedures, creating alarm response procedures associated with these components, revising maintenance surveillance procedures. The inspectors observed the testing of the components on July 7, 2022, and verified corrective actions effectively prevented recurrence of the event.

EXIT MEETINGS AND DEBRIEFS

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

On October 6, 2022, the inspectors presented the integrated inspection results to Mr. C. Domingos, Site Vice President, and other members of the licensee staff.

On July 28, 2022, the inspectors presented the radiation protection inspection results to Ms. M. Neal, Director Nuclear Fleet Operations, and other members of the licensee staff.

On August 26, 2022, the inspectors presented the triennial heat sink inspection results to Mr. S. Hafen, Plant Manager and other members of the licensee staff.

DOCUMENTS REVIEWED

Inspection Type Designation Description or Title Revision or

Procedure Date

71111.01 Procedures 1478 External Flood Monthly and Annual Surveillance 24

EWI-08.19.01 Cable Condition Monitoring Program 10

FP-PE-CBL-01 Cable Condition Monitoring Program 5

Work Orders 700091077-010 Underground Vaults for Water - Inspection 08/23/2022

71111.04 Drawings NH-36051 (M-P&ID Diesel Oil System U

133)

NH-36051-1 (M-P&ID Diesel Oil System 77

133)

NH-36249 (M-P&ID (Steam Side), High Pressure Coolant Injection System85

23)

NH-36249-1 (M-P&ID HPCI Hydraulic Control & Lubrication System 78

23-1)

NH-36250 (M-P&ID (Water Side), High Pressure Coolant Injection System87

24)

NH-36664 (M-P&ID RHR Service Water & Emergency Service Water 97

2) Systems

Procedures Ops Man Emergency Diesel Generators 62

B.09.08.05

Ops Man B.09.09-250 VDC System 6

(Description of

Equipment)

Ops Man B.09.09-250 VDC System (Figures) 5

71111.05 Fire Plans Strategy A.3-03-A Fire Zone 3-A, RECIRC MG Set Room 9

Strategy A.3-05-C Fuel Pool Skimmer Tank Room 6

Strategy A.3-13-B Fire Zone 13-B, RX Feed Pump and Lube Oil Reservoir 14

Room

Strategy A.3-13-C Turbine Building 911' Elevation East MCC Area 12

Strategy A.3-31-A EFT Building 1st Floor (Division 1) 12

71111.06 Calculations07-035 Monticello Generating Plant Internal Flooding Analysis 0

Procedures C.4-I Operations Manual Section: Abnormal Procedures, Plant 19

Flooding

Inspection Type Designation Description or Title Revision or

Procedure Date

71111.07T Calculations08-085 Post LOCA Reactor Building Heatup Analyses for EPU 0F

97-083 Acceptance Criteria for RHRSW Flow Loop Checks in 0

Procedure 7070

Calibration FI-7189 Card 6 FI-7189: Division 1 RHR/RHR-SW/CS Systems Test 03/17/2021

Records Instrument, Card 6

Corrective Action 501000049337 FI-7189 Indicating Higher Than Actual 03/09/2021

Documents 501000049639 FI-7189 Impact on 13 RSW Pump Baseline 03/17/2021

501000056747 ECCS Pump Availability Question 10/05/2021

501000057418 IST Annual Trending Review 10/19/2021

501000058725 Repeat - Condenser Fouling 12/02/2021

501000062175 RHR RM Cooling Units PRA Model Concern 04/12/2022

Corrective Action 501000065806 2022 UHS: RHRSW IST Procedures ISTB-3550 08/24/2022

Documents 501000065812 22UHS: Unknown Flow Noise in A RHR Rm 08/24/2022

Resulting from 501000065826 22UHS: Enhancements to A.6, Acts of Nature 08/24/2022

Inspection 501000065848 22UHS: Temp Gradient Across RHRSW-14 08/24/2022

501000065853 22UHS: RHRSW Flow Loop Cal Units 08/25/2022

501000065873 22UHS: Clarify GL 89-13 HX Criteria 08/25/2022

501000065884 22UHS: NRC Observations 08/25/2022

501000065901 22UHS: M&TE Process Post FI-7189 Failure 08/25/2022

Drawings NH-36664 P&ID RHR Service Water & Emergency Service Water 97

Systems

NH-36665 P&ID Service Water System & Make-Up Intake Structure 109

Engineering 601000003242 RHR Flow Loop Calibration 03/18/2022

Changes 6EQVENG27783 Replace V-4AC-4 and V-AC-5 Cooling Coils 02/28/2020

Procedures A.6 Acts of Nature 64

B.08.01.04-05 Emergency Service Water 32

C.4-B.08.01.01.A Loss of Service Water 14

C.6-020-A-17 Southeast Equip Rm V-AC-5 High Temp 10

C.6-CWT104 River Level - Low 0

C.6-CWT502 River Flow - Low 0

DBD-S.04 Intake Structure 7

DBD-T.19 Design Bases Document: External Considerations D

EWI-08.22.01 Generic Letter 89-13 14

Inspection Type Designation Description or Title Revision or

Procedure Date

I.05.25 Zebra Mussel Inspection 9

Work Orders 00449322 Mech - Replace 13 RHRSW Motor Cooling Coil 10/28/2013

00518804 Mech-P-109C, Clean 13 RHRSW Motor Cooler Per 01/18/2018

4058-03-PM

700039942-0010 RHR Service Water System Instrument Maintenance 03/03/2020

Procedure

700047296 4058-3 (Clean 13 RHRSW Motor Clr P-109C) 12/16/2021

700055078 PM 4126 (Inspect West Service Water Bay) 09/28/2021

700057971 PM 4125 (Inspect East Service Water Bay) 04/21/2021

700059226 4058-5 A RHR RM Air Cooling Unit V-AC-5 07/14/2020

700060484 Intake Bay/Traveling Screen Forebays Inspection 09/28/2021

700082689-0010 A RHR Room Air Cooling Unit V-AC-5 Internal Cleaning, 05/12/2022

External Cleaning and Visual Inspection

700087674 FI-7189, Replace Indicator 03/17/2021

700089703-0020 RHRSW-14/68, SAWA Valve Testing 08/16/2022

700091195-0010 P-109C, Generate Pump Curve 12/14/2021

700098226-0010 "A" RHRSW Quarterly Pump and Valve Tests 03/09/2022

700099950-0010 14 ESW Quarterly Pump and Valve Tests 04/19/2022

700102185-0010 "A" RHRSW Quarterly Pump and Valve Tests 06/10/2022

700103955-0010 SW-103 and SW-104 Valve Operability Test 07/20/2022

71111.11Q Miscellaneous Simulator Licensed Operator Requalification, Cycle 22D Integrated 08/02/2022

Exercise Guide Scenario (Simulator)

(SEG) MT-LOR-

2D-001S

Procedures 0255-06-IA-1 HPCI Quarterly Pump and Valve Tests 109

1069 HPCI Flow Control System Dynamic Test Procedure 27

7136 HPCI System Instrumentation Maintenance 15

B.03.02-05 Opening HPCI Steam Line Isolation Valves, MO 2304 and 63

2305

71111.12 Corrective Action 501000066352 4kVB-34 Kept Charging After Closing 09/12/2022

Documents

Drawings NE-36404-5 152-505 Elementary 78

NH-36808 (M-P&ID - Air Flow Diagram Reactor Building Upper Part 77

Inspection Type Designation Description or Title Revision or

Procedure Date

157)

NX-8875-50-8 152-505 Internal E

Procedures 4048-PM Secondary Containment Isolation Damper Maintenance 29

4115-PM HPCI System Inspection 34

4850-505-PM 152-505, 11 CS Pump Relay Maintenance, Calibration and 9

Test Tripping

FP-MA-ES-01 Electrical Safety 13

FP-PE-RLP-01 License Renewal Implementation 9

Work Orders 700074627-0020 Secondary Containment Isolation Damper 08/31/2022

700076209-0030 HPCI Turbine Speed Governor EGM 09/21/2022

700085022 Electric Fire Pump Air Vent Rebuild 08/10/2022

71111.13 Corrective Action 501000065007 HPCI Steam Line De-Pressure Time 07/26/2022

Documents

Drawings NH-54817-4 P&ID Off Gas Modification Train 'A' 83

Procedures 1376-02 RHR Pump Motor Oil Sampling 7

FP-WM-SCH-01 Online Scheduling Process 27

QF-2007 Planning and Approval of High Risk or Scheduled Work 3

Risk, Off Gas Recombiner Condensate Cooling Pump

Work Orders 700082311-0010 I-HPCI-R-7 07/27/2022

700106547-0010 I-HPCI-R-6 07/27/2022

700108898-0030 P-202D/MTR, Correct Oil Cooler Leakage 07/07/2202

700108898-20 P-202D/MTR Pressure Test Installed Coil 07/07/2022

71111.15 Corrective Action 501000065942 FLEX Forklift Storage Improvement 0

Documents 501000066143 SW 21-1 and SW 22-1 Failed IST Testing 09/05/2022

501000066330 Unable to Dial Out on Phone System 0912/2022

501000066382 FLEX Equipment not Returned by End of Day 0

501000066386 Trend: Lack of Reverence for FLEX Equipment 0

501000066684 Vibration Data Bad P-109D 09/23/2022

Procedures B.08.08-05 Plant Communications System 10

71111.18 Corrective Action 501000065522 NRC identified Work Plan Typo (Wrong Component 08/09/2022

Documents Identified in Work Plan Title)

Resulting from

Inspection

Inspection Type Designation Description or Title Revision or

Procedure Date

Drawings NH-36049-2 P&ID Instrument Air System 87

Engineering 601000002842 Commercial Change Package, Instrument Air Compressor 0

Changes SEQC-1 Replacement

Work Orders 700087578-0017 17 IAC C-446 Elektronikon Installation 0

71111.19 Procedures 0074 Control Rod Drive Exercise 71

0187-01 Emergency Diesel Generator 11/Emergency Service Water 107

Quarterly Pump and Valve Tests

4048-PM Secondary Containment Isolation Damper Maintenance 29

4115-PM HPCI System Inspection 34

7100 CRD-HCU Instrument Maintenance Procedure 8

Work Orders 700006422-0040 HPCI Turbine Stop Valve 1

(PMT)

700054643-0170 Post Maintenance Test/Return to Service Instructions 1

Emergency Diesel Generator 11

700082311-0020 LS-23-90 Lower Root Isolation Valve 07/25/2022

700106547-0020 LS-23-90-Upper Root Isolation Valve 07/25/2022

700107976-0090 PMT/RTS Instructions RHRSW 11 Pump 3

700108898-0040 P-202D/MTR, Cooling Coli PMT/RTS 07/07/2022

700109666-0020 Hydraulic Control Unit for Control Rod Drive 10-39 09/07/2022

7001111934-0020 LS-23-98 PMT 09/22/2022

700112562-0030 SV-2043 Air Leaking Past Exhaust Port 0

(PMT)

71111.22 Drawings NH-36249 (M-P&ID (Steam Side) High Pressure Cooling Injection System85

23)

NH-3649-1 (M-P&ID HPCI Hydraulic Control & Lubrication System 78

23-1)

Procedures 0211 Recombiner Train Outlet Hydrogen Analyzer Procedures 47

255-06-IA-1 HPCI Quarterly Pump and Valve Tests 109

298-02 Security System Emergency Generator Operability Check & 31

Alarm

ISP-FIR-1147-07 Fire Detection Instrumentation Detector Sensitivity Check for 3

Battery Rooms and Cable Spreading Room

NH-36250 (M-P&ID (Water Side) High Pressure Coolant Injection System87

Inspection Type Designation Description or Title Revision or

Procedure Date

24)

71114.06 Miscellaneous RQ-SS-201 Scenario Evaluation Guide 0

71124.07 Calibration 5829 Radiological Environmental Monitoring Air Sampler 11/01/2021

Records Calibration

Miscellaneous 545502 GEL Laboratories Analysis Report 06/22/2021

550647 GEL Laboratories Analysis Report 08/19/2021

550648 GEL Laboratories Analysis Report 08/19/2021

556389 GEL Laboratories Analysis Report 10/19/2021

558022 GEL Laboratories Analysis Report 11/03/2021

ODCM-07.01 Radiological Environmental Monitoring Program 26

Procedures I.05.33 Weekly Radiological Environmental Monitoring Procedures 11

I.05.36 Semiannual Shoreline Sediment and Fish Sampling 4

I.05.39 Monthly Radiological Environmental Analysis Report 3

Verification

I.05.43 Radiological Environmental Monitoring Air Sampler 3

Calibration and Maintenance

I.05.51 Radiological Environmental Monitoring Vegetation Sampling 3

Work Orders 700081451 Meteorological Tower Preventative Maintenance 10/22/2021

71151 Corrective Action 501000063695 HPCI UA Not Entered into Phoenix 06/08/2022

Documents

Miscellaneous QF0445 (FP-R-NRC and MOR Data Collection and Submittal Forms; MSPI 08/10/2022

PI-01) High Pressure Injection System; 3rd Quarter 2021 through

2nd Quarter 2022

QF0445 (FP-R-NRC and MOR Data Collection and Submittal Forms; MSPI 08/10/2022

PI-01) Emergency AC Power Systems; 3rd Quarter 2021 through

2nd Quarter 2022

QF0445 (FP-R-NRC and MOR Data Collection and Submittal Forms; MSPI 08/10/2022

PI-01) Heat Removal Systems; 3rd Quarter 2021 through 2nd

Quarter 2022

Procedures FP-R-PI-01 Preparation of NRC Performance Indicators 10

71152A Corrective Action 501000053835 Loss of Security Power during 0298-02 07/07/2021

Documents 602000020940 Apparent Cause Evaluation, Loss of Security Power during 09/01/2021

298-02

Drawings NF 85716 Security System Circuit Diagram 480 MCC-191, MCC-192, 79

Inspection Type Designation Description or Title Revision or

Procedure Date

& MCC-193

71152S Corrective Action 501000062468 EDG FO Pumps Found Running, EDG 12 Inoperable 04/21/2022

Documents 501000064804 Water Gong Not Working 07/18/2022

501000065326 Switch Covers Needed for Status Control 08/05/2022

501000065376 Evaluate Plexiglass Covers in the Plant 08/05/2022

Miscellaneous Licensee Internal Status Control Walkdown Work Sheet 08/08/2022

Spreadsheet

Procedures 0000-A Operations Daily Log - Mode 1 109

0010 Reactor SCRAM Functional Test 32

003 Drywell High Pressure SCRAM and Group 2, 3 & SCTMT 37

Isolation Test and Calibration Procedure

0030 ECCS High Drywell Pressure Sensor 23

0356 Stack/Vent Iodine/Particulate Sample 24

FP-G-DOC-4 Procedure Processing 43

OSP-AN2-0567 Monitor ADS Pneumatic Supply 9

Work Orders 700093480-0010 Warehouse No.1/No.2 Fire Suppression 07/18/2022

18