IR 05000458/2020003

Revised Integrated Inspection Report 05000458/2020003

ML20321A126
Person / Time
Site:	River Bend
Issue date:	11/16/2020
From:	Jason Kozal NRC/RGN-IV/DRP/RPB-C
To:	Vercelli S Entergy Operations
References
IR 2020003
Download: ML20321A126 (17)

Text

November 16, 2020

SUBJECT:

RIVER BEND STATION - REVISED INTEGRATED INSPECTION REPORT 05000458/2020003

Dear Mr. Vercelli:

On September 30, 2020, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at River Bend Station. On October 13, 2020, 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.

The subject inspection report was originally issued by letter dated October 30, 2020 (Agencywide Documents and Management System (ADAMS) Accession No. ML20303A140).

An administrative error in the report was subsequently identified; therefore, the corrected report is being reissued in its entirety. The inspection sample documented under Reactor Safety Section 71114.06 on page 8 of the enclosed report was originally documented as an IP Section 03.01 sample. The revised report enclosed with this letter updates this sample to be an IP Section 03.02 sample. No other changes to the original inspection report have been made. 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, Jason W. Digitally signed by Jason W. Kozal Kozal Date: 2020.11.16 10:50:51 -06'00'

Jason W. Kozal, Chief Reactor Projects Branch C Division of Reactor Projects Docket No. 05000458 License No. NPF-47

Enclosure:

As stated

Inspection Report

Docket Number: 05000458 License Number: NPF-47 Report Number: 05000458/2020003 Enterprise Identifier: I-2020-003-0005 Licensee: Entergy Operations, Inc.

Facility: River Bend Station Location: St. Francisville, Louisiana Inspection Dates: July 1, 2020 to September 30, 2020 Inspectors: R. Alexander, Senior Emergency Preparedness Inspector B. Bergeon, Operations Engineer R. Fanner, Operations Engineer S. Hedger, Emergency Preparedness Inspector R. Kumana, Senior Resident Inspector B. Parks, Resident Inspector Approved By: Jason W. Kozal, Chief Reactor Projects Branch C Division of Reactor Projects Enclosure

SUMMARY

The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting an integrated inspection at River Bend 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 71111.0

List of Findings and Violations

No findings or violations of more than minor significance were identified.

Additional Tracking Items

None.

PLANT STATUS

River Bend Station began the inspection period at rated thermal power. On July 24, 2020, the station conducted a downpower to approximately 8 percent power to conduct maintenance on reactor recirculation pump A. The unit was returned to rated thermal power on August 1, 2020. On August 21, 2020, the station manually inserted a reactor scram in response to power oscillations associated with a loss of reactor recirculation pump B. The unit was returned to approximately 95 percent power on August 30, 2020, and remained flow-limited at that power level due to grid demand considerations that prevented the station from performing a control rod pattern adjustment. On September 12, 2020, the station conducted a downpower to approximately 61 percent to perform a control rod pattern adjustment. The unit was returned to rated thermal power on September 13, 2020. On September 25, 2020, the station conducted a downpower to approximately 61 percent power to perform a control rod pattern adjustment. The unit was returned to rated thermal power on September 29, 2020. The unit remained at 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 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 and regional inspectors were directed to begin teleworking and to remotely access licensee information using available technology. During this time the resident inspectors performed periodic site visits each week, increasing the amount of time on site as local COVID-19 conditions permitted. As part of their onsite activities, resident inspectors 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 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.

71111.01 - Adverse Weather Protection

Seasonal Extreme Weather Sample (IP Section 03.01) (1 Sample)

(1) The inspectors evaluated summer readiness of offsite and alternate alternating current (AC) power systems on August 19, 2020.

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) Control building heating, ventilation, and air conditioning chilled water system on July 30, 2020

(2) Division II emergency diesel generator on August 12, 2020

(3) Containment unit cooler 1B on September 10, 2020

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

(1) The inspectors evaluated system configurations during a complete walkdown of the low pressure core spray system on September 11, 2020.

71111.05 - Fire Protection

Fire Area Walkdown and Inspection Sample (IP Section 03.01) (6 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) Low pressure core spray pump room, fire area AB-6/Z-1, on July 20, 2020

(2) Heating, ventilation, and air conditioning 1B room, fire area C-4, on July 23, 2020

(3) Diesel generator B room, fire area DG-4/Z-1, on August 12, 2020

(4) Standby cooling tower pump A transformer room, fire area PH-1/Z-2, on September 2, 2020

(5) 125 VDC switchgear room, fire area C-24, on September 10, 2020

(6) Cable chase IV, fire area C-10, on September 11, 2020

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

(1) The inspectors evaluated the onsite fire brigade training and performance during an unannounced fire drill on September 11, 2020. During this drill, the inspectors evaluated the capability of the fire brigade members, the leadership ability of the brigade leader, the brigades use of turnout gear and fire-fighting equipment, and the effectiveness of the fire brigades team operation. The inspectors also reviewed whether the licensees fire brigade met NRC requirements for training, dedicated size and membership, and equipment.

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) Division I and Division II control building chilled water system chiller rooms on September 29, 2020

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 from August 10, 2020, through October 2, 2020.

71111.11B - Licensed Operator Requalification Program and Licensed Operator Performance

Licensed Operator Requalification Program (IP Section 03.04) (1 Sample)

(1) Biennial Requalification Written Examinations The inspectors evaluated the quality of the licensed operator biennial requalification written examination administered between August 10, 2020, and October 2, 2020.

Annual Requalification Operating Tests The inspectors evaluated the adequacy of the facility licensees annual requalification operating test.

Administration of an Annual Requalification Operating Test The inspectors evaluated the effectiveness of the facility licensee in administering requalification operating tests required by 10 CFR 55.59(a)(2) and that the facility licensee is effectively evaluating their licensed operators for mastery of training objectives.

Requalification Examination Security The inspectors evaluated the ability of the facility licensee to safeguard examination material, such that the examination is not compromised.

Remedial Training and Re-examinations The inspectors evaluated the effectiveness of remedial training conducted by the licensee and reviewed the adequacy of re-examinations for licensed operators who did not pass a required requalification examination.

Operator License Conditions The inspectors evaluated the licensees program for ensuring that licensed operators meet the conditions of their licenses.

Control Room Simulator The inspectors evaluated the adequacy of the facility licensees control room simulator in modeling the actual plant and for meeting the requirements contained in 10 CFR 55.46.

Problem Identification and Resolution The inspectors evaluated the licensees ability to identify and resolve problems associated with licensed operator performance.

71111.11Q - Licensed Operator Requalification Program and Licensed Operator Performance

Licensed Operator Performance in the Actual Plant/Main Control Room (IP Section 03.01)

(2 Samples)

(1) The inspectors observed and evaluated licensed operator performance in the Control Room during power operation limited by 100 percent core flow on July 27, 2020.

(2) The inspectors observed and evaluated licensed operator performance in the Control Room during a control rod pattern adjustment on August 28, 2020.

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

(1) The inspectors observed and evaluated licensed operator requalification training on July 7, 2020.

71111.12 - Maintenance Effectiveness

Maintenance Effectiveness (IP Section 03.01) (1 Sample)

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

(1) Functional failure review of Division III diesel generator system on

September 28, 2020 Quality Control (IP Section 03.02) (1 Sample)

The inspectors evaluated the effectiveness of maintenance and quality control activities to ensure the following structures, systems, and components remains capable of performing its intended function:

(1) Review of commercial grade parts installed in reactor core isolation cooling turbine lube oil pressure relief valve ICS-RV159 on September 18, 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) Yellow risk during surveillance testing on Division II emergency diesel generator and planned maintenance on Division II containment unit cooler on August 18, 2020

(2) Yellow risk during planned maintenance on reactor core isolation cooling system on September 1, 2020

(3) Yellow risk during planned maintenance on Division I containment unit cooler on September 2, 2020

(4) Yellow risk during emergency core cooling system reactor vessel pressure low safety relief valve actuation instrumentation channel calibration on September 22, 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) Reactor core isolation cooling after discovery that a commercial grade part designated as non-safety-related was installed in a safety-related application on September 18, 2020 (CR-RBS-2020-03056)

(2) Control building air conditioning system after delayed trip of chiller 1D during chiller shutdown on September 23, 2020 (CR-RBS-2020-03915)

(3) Standby service water system after inadvertent operation of all three normal service water pumps on September 28, 2020 (CR-RBS-2020-03942)

71111.18 - Plant Modifications

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

(2 Samples)

The inspectors evaluated the following temporary or permanent modifications:

(1) Control building chiller A replacement of controls instrumentation, guide vane actuator, and hot gas bypass actuator permanent modification on July 21, 2020

(2) Plugging of weep holes in the G tunnel ventilation duct permanent modification on September 23, 2020

71111.19 - Post-Maintenance Testing

Post-Maintenance Test Sample (IP Section 03.01) (6 Samples)

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

(1) Work Order (WO) 00517472 after disassembly of C41-VF033B, standby liquid control pump B discharge header check valve, on July 31, 2020

(2) WO 00546349 testing following maintenance on containment unit cooler 1B on August 3, 2020

(3) WO 00548350 after replacement of Division III emergency diesel generator speed sensing circuit power supply on August 5, 2020

(4) WO 00549582 repair of jacket water inlet piping on Division II emergency diesel generator on August 25, 2020

(5) WO 52849959 after replacement of Division I containment unit cooler relays on September24, 2020

(6) WO 00550588 testing following replacement of high pressure core spray instrument power supply on September 29, 2020

71111.22 - Surveillance Testing

The inspectors evaluated the following surveillance tests:

Surveillance Tests (other) (IP Section 03.01)

(1) STP-309-0201, Division I Diesel Generator Operability Test, Revision 63, on July 10, 2020

(2) STP-309-0603, Division III ECCS Test, Revision 48, on August 4, 2020

(3) STP-204-4503, LPCI Pump A Discharge Flow - Low, Channel Functional Test (E12-N652A), Revision 302, on September 3, 2020

Inservice Testing (IP Section 03.01) (1 Sample)

(1) STP-256-6321, Div I Service Water Recirculation Pump and Valve Operability Test, Revision 27, on September 15, 2020

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 Emergency Action Level procedure and Emergency Plan changes, which were submitted to the NRC on June 9, 2020, in accordance with 10 CFR 50.54(q)(5):

• River Bend Emergency Plan, Revisions 46 and 47

• EIP-2-001, Classification of Emergencies, Revisions 29 and 30

• ElP-2-007, Protective Action Recommendation Guidelines, Revision 28 This evaluation does not constitute NRC approval.

71114.06 - Drill Evaluation

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

(1) The inspectors observed simulator-based licensed operator requalification training that contributed to the drill and exercise performance indicator on July 7,

OTHER ACTIVITIES - BASELINE

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

MS05: Safety System Functional Failures (SSFFs) Sample (IP Section 02.04) ===

(1) July 2019 through June 2020

MS09: Residual Heat Removal Systems (IP Section 02.08) (1 Sample)

(1) July 2019 through June 2020

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

(1) July 2019 through June 2020

71152 - Problem Identification and Resolution

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

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

(1) Fuel failure under Condition Report CR-RBS-2020-01548 on August 12, 2020

71153 - Follow-up of Events and Notices of Enforcement Discretion Personnel Performance (IP Section 03.03)

(1) The inspectors evaluated personnel performance during an inadvertent high pressure core spray initiation on September 4,

INSPECTION RESULTS

Licensee-Identified Non-Cited Violation 71111.05 This violation of very low safety significance was identified by the licensee and entered in the licensees corrective action program and is being treated as a non-cited violation, consistent with Section 3.2 of the Enforcement Policy.

Violation: The River Bend Station, Unit 1, Renewed Facility Operating License, Section C(10)and Attachment 4, requires that the licensee implement and maintain in effect all provisions of the approved fire protection program. The licensees fire protection program requires the licensee to implement fire watches for an inoperable fire rated assembly. Contrary to the above, from July 15, 2020, to August 7, 2020, the licensee failed to implement required fire watches as compensatory measures for four inoperable fire rated assemblies. Specifically, the licensee failed to establish an hourly fire watch for inoperable fire seals in penetrations 1C3W99, 1C3W109, 1N1W35, and 1N1W40.

Significance/Severity: Green. The inspectors assessed the significance of the finding using Inspection Manual Chapter 0609, Appendix F, Fire Protection Significance Determination Process. The inspectors determined the finding affected fire confinement and should be assigned a high degradation rating in accordance with Attachment 2. The inspectors determined the finding was of very low safety significance (Green) because the degraded fire confinement element continued to provide adequate fire endurance to prevent fire propagation through the fire confinement element, given the combustible loading and location of equipment important to safe shutdown in the fire area of concern.

Corrective Action References: CR-RBS-2020-03309 and CR-RBS-2020-03929

EXIT MEETINGS AND DEBRIEFS

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

• On September 2, 2020, the inspectors presented the emergency plan/emergency action level changes in-office inspection results to Mr. T. Gates, Manager, Emergency Planning, and other members of the licensee staff.

• On September 3, 2020, the inspectors presented the licensed operator requalification program biennial inspection results to Mr. S. Vercelli, Site Vice President, and other members of the licensee staff.

• On October 2, 2020, the inspectors presented the 2020 licensed operator requalification inspection results to Mr. M. McCue, Superintendent, Training, and other members of the licensee staff.

• On October 13, 2020, the inspectors presented the integrated inspection results to Mr. S. Vercelli, Site Vice President, and other members of the licensee staff.

DOCUMENTS REVIEWED

Inspection Type Designation Description or Title Revision or

Procedure Date

71111.05 Corrective Action CR-RBS- 2020-03301, 2020-03307, 2020-03309

Documents

Procedures CB-116-129 125 VDC Switchgear Room Fire Area C-24 4

ET-067-403 B Tunnel East Fire Area ET-1 3

NS-98 Normal Switchgear Building, Elevation 98' 2

Work Orders WO 00531479

71111.11B Corrective Action CR-RBS-2019- RBS SRC Station Performance Deficiency 19-02 10/29/2019

Documents 06924

CR-RBS-2019- Unplanned SCRAM 05/31/2019

3891

DR 17-0034 Simulator Discrepancy Report, LOR Load, IC 101 06/09/2017

DR 18-0017 Simulator Discrepancy Report, Questions raised during PO- 01/03/2018

18-01

DR 18-0039 Simulator Discrepancy Report, Unexpected results during 06/12/2018

Malfunction ED001, Loss of Offsite Power and then removing

Malfunction ED001

Corrective Action CR-RBS-2020- NRC Identified Simulator Transient Test #8 Documentation 09/02/2020

Documents 03696

Resulting from DR 20-0041 Simulator Discrepancy Report, MOV Failed to Work During 09/02/2020

Inspection LOR Scenario

Miscellaneous 2020 RO Exam RO Biennial Written Requalification Examination 08/17/2020

1. 1

20 RO Exam RO Biennial Written Requalification Examination 08/24/2020

1. 2

20 SRO Exam SRO Biennial Written Requalification Examination 08/17/2020

1. 1

20 SRO Exam SRO Biennial Written Requalification Examination 08/24/2020

1. 2

PEST-19-01 Post Event Simulator Test 19-03, Scram 05/31/2019

PEST-20-01 Post Event Simulator Test 20-01, CV #3 Testing 06/29/2020

RBS-TT-03 Simultaneous Closure of all Main Steam Isolation Valves 05/08/2019

RBS-TT-04 Simultaneous Trip of All Recirculation Pumps 05/08/2019

Inspection Type Designation Description or Title Revision or

Procedure Date

RBS-TT-08 Recirculation Loop Rupture with Loos of Offsite Power and 05/08/2019

Div 1 DG Failure

RJPM-OPS-053- 2020 Biennial Job Performance Measure 0

RJPM-OPS-200- 2020 Biennial Job Performance Measure 0

RJPM-OPS-203- 2020 Biennial Job Performance Measure 0

RJPM-OPS-305- 2020 Biennial Job Performance Measure 0

RJPM-OPS-309- 2020 Biennial Job Performance Measure 0

RJPM-OPS-403- 2020 Biennial Job Performance Measure 0

RJPM-OPS-AR2- 2020 Biennial Job Performance Measure 0

RJPM-OPS-AR2- 2020 Biennial Job Performance Measure 0

RJPM-OPS-AS2- 2020 Biennial Job Performance Measure 0

RJPM-OPS-AS2- 2020 Biennial Job Performance Measure 0

RO Exam #1 RO Biennial Written Requalification Exam 08/17/2020

RSES-OPS-814- 2020 Biennial Operating Scenario 08/12/2020

RSES-OPS-831- 2020 Biennial Operating Scenario 08/12/2020

RSES-OPS-843- 2020 Biennial Operating Scenario 08/12/2020

RSES-OPS-845- 2020 Biennial Operating Scenario 08/12/2020

Scenario Based 2020 LOR Scenario RSES-OPS-845-00 05/08/2019

Testing

Scenario Based 2019 Initial License Examination Scenario #1 07/09/2019

Inspection Type Designation Description or Title Revision or

Procedure Date

Testing

Simulator Simulator Real Time Test 04/17/2017

Operability Test

Simulator Steady State Test #1 40% Power 03/21/2017

Operability Test

Simulator Simulator Steady State Test #2 80% Power 03/21/2017

Operability Test

Simulator Steady State Test #3 100% Power 03/21/2017

Operability Test

Simulator Work Simulator Core Performance Testing 05/08/2019

Instruction 1.13

TQF-210-DD03- LOR Crew Performance Evaluation Grading Criteria 5

Grade

TQF-210-DD04- RO/SRO Performance Evaluation Grading Criteria 2

Grade

TQF-210-DD05- STA/SE Performance Evaluation Grading Criteria 2

Grade

Procedures EN-NS-112 Medical Program 21

EN-OP-115 Shift Turnover and Relief 2

EN-OP-123 Time Critical Action/Time Sensitive Action Program Standard 3

EN-TQ-114 Licensed Operator Requalification Training Program 13

Description

EN-TQ-202 Simulator Configuration Control 11

EN-TQ-210 Conduct of Simulator Training 16

EN-TQ-217 Examination Security 10

TQF-114- Annual Operating Exam Simulator Scenario Set Quality 8

AOESIM Checklist

Self-Assessments LO-RLO-2017- 2020 Operations Accredited Training Comprehensive Self- 07/10/2020

00097 Assessment

71114.04 Miscellaneous 50.54(q) Screen for EIP-2-001 Revision 29 04/28/2020

50.54(q) Screen for EIP-2-001 Revision 30 05/01/2020

50.54(q) Evaluation for EIP-2-001 Revision 30 01/20/2020

50.54(q) Screen for EIP-2-007 Revision 28 04/23/2020

EN-LI-100 Review for RBS Emergency Plan Revision 46 04/23/2020

Inspection Type Designation Description or Title Revision or

Procedure Date

50.54(q) Screen for RBS Emergency Plan Revision 46 04/23/2020

EN-LI-100 Review for RBS Emergency Plan Revision 47 04/27/2020

50.54(q) Screen for RBS Emergency Plan Revision 47 04/28/2020

Letter from NRC to Entergy/River Bend - RIVER BEND 05/14/2019

STATION, UNIT 1 - ISSUANCE OF AMENDMENT TO

REVISE EMERGENCY ACTION LEVELS TO A SCHEME

BASED ON NEI 99-01, REVISION 6, "DEVELOPMENT OF

EMERGENCY ACTION LEVELS FOR NON-PASSIVE

REACTORS" (EPID L-2018-LLA-0130)

Procedures EN-EP-305 Emergency Planning 10CFR50.54(q) Review Program 8

EN-LI-100 Process Applicability Determination 29

14