IR 05000313/2020004

Integrated Inspection Report 05000313/2020004 and 05000368/2020004

ML21034A418
Person / Time
Site:	Arkansas Nuclear
Issue date:	02/03/2021
From:	John Dixon NRC/RGN-IV/DRP
To:	Dinelli J Entergy Operations
References
IR 2020004
Download: ML21034A418 (16)

Text

February 3, 2021

SUBJECT:

ARKANSAS NUCLEAR ONE, UNITS 1 AND 2 - INTEGRATED INSPECTION REPORT 05000313/2020004 AND 05000368/2020004

Dear Mr. Dinelli:

On December 31, 2020, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Arkansas Nuclear One, Units 1 and 2. On January 14, 2021, 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 did not involve a violation of NRC requirements.

On September 23, 2020, the NRC issued NOTICE OF VIOLATION; NRC INSPECTION REPORT 05000313/2020404 and 05000368/2020404; and NRC Investigation Report 4-2019-009 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML20267A403), which documented the results of NRC Office of Investigations Report 4-2019-009 and included a Severity Level III Notice of Violation for willful misconduct related to the control of prohibited items in the protected area. Region IV staff reviewed the corrective actions associated with the violation and determined that no additional follow-up actions are planned or necessary as delineated by Inspection Procedure 92702. The basis for this determination is documented in the enclosed report.

If you disagree with a cross-cutting aspect assignment or a finding not associated with a regulatory requirement 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 Arkansas Nuclear One. 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, Digitally signed by John L. Dixon John L. Dixon Date: 2021.02.03 11:28:49 -06'00'

John L. Dixon, Jr., Chief Reactor Projects Branch D Division of Reactor Projects Docket Nos. 05000313 and 05000368 License Nos. DPR-51 and NPF-6

Enclosure:

As stated

Inspection Report

Docket Numbers: 05000313 and 05000368 License Numbers: DPR-51 and NPF-6 Report Numbers: 05000313/2020004 and 05000368/2020004 Enterprise Identifier: I-2020-004-0003 Licensee: Entergy Operations, Inc.

Facility: Arkansas Nuclear One Location: Russellville, AR Inspection Dates: October 1, 2020 to December 31, 2020 Inspectors: N. Brown, Resident Inspector R. Bywater, Senior Resident Inspector T. DeBey, Resident Inspector J. Melfi, Acting Senior Resident Inspector T. Sullivan, Senior Reactor Technology Instructor Approved By: John L. Dixon, Jr., Chief Reactor Projects Branch D Division of Reactor Projects Enclosure

SUMMARY

The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting an integrated inspection at Arkansas Nuclear One, Units 1 and 2, 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

Incorrect Gasket Installed on High-Pressure Feedwater Heater 2E-2B Results in Forced Shutdown Cornerstone Significance Cross-Cutting Report Aspect Section Initiating Events Green [H.5] - Work 71153 FIN 05000368/2020004-01 Management Open/Closed A self-revealed, Green finding was identified for the licensees failure to follow Work Order 52770426 and associated Procedure EN-WM-102, Work Implementation and Closeout, Revision 12, which states that coordination and control of work activities will be performed by the implementing work group supervisors/team leaders or designees in accordance with Procedure EN-MA-101, Conduct of Maintenance. Specifically, during the fall 2018 refueling outage, supplemental maintenance workers installed the wrong gaskets on the Unit 2 high-pressure feedwater heaters (2E-1B and 2E-2B) contrary to work order requirements. This failure resulted in a leak in the 2E-2B feedwater heater and required a rapid unit shutdown and forced outage on November 1, 2020, to replace the gaskets.

Additional Tracking Items

None.

PLANT STATUS

Unit 1 began the inspection period at full power and remained at full power until November 19, 2020, when operators reduced power to 85 percent power to perform turbine valve testing. The unit was returned to full power the same day, where it remained for the rest of the reporting period except for minor reductions in power to support scheduled surveillances.

Unit 2 began the inspection period at full power and remained at full power until November 1, 2020, when operators performed a rapid power reduction and shut down the reactor due to a leaking feedwater heater manway gasket on feedwater heater 2E-2B.

Following repairs, the reactor was made critical on November 3, 2020, and the unit was returned to full power on November 5, 2020. On December 10, 2020, Unit 2 automatically tripped from 100 percent power following a failure involving the main feedwater pump A control system. After repairs, the reactor was made critical on December 13, 2020, and the unit was returned to full power on December 14, 2020. Unit 2 remained at full power for the rest of the reporting period except for minor reductions in power to support scheduled surveillances.

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 Disease 2019 (COVID-19),resident inspectors were directed to begin telework and to remotely access licensee information using available technology. During this time, the resident inspectors performed periodic site visits each week; conducted plant status activities as described in IMC 2515, Appendix D, Plant Status; 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 portions 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 readiness for seasonal extreme weather conditions prior to the onset of seasonal cold temperatures for the following systems:

• Unit 2 auxiliary building ventilation equipment room on October 8, 2020

• Unit 2 turbine building switchgear area ventilation systems on October 8, 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) Unit 2 service water system intake structure for both trains on November 13, 2020

(2) Unit 2 emergency feedwater train A on December 1, 2020

(3) Unit 1 service water pump A and pump B on December 9, 2020

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) Unit 2 high-pressure safety injection pump C room, Fire Zone 2010, on November 13, 2020

(2) Unit 1 vital switchgear Room A3, Fire Zone 100-N, on December 16, 2020

71111.11Q - Licensed Operator Requalification Program and Licensed Operator Performance

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

(2 Samples)

(1) The inspectors observed and evaluated licensed operator performance in the control room during Unit 2 startup after the feedwater heater 2E-2B leak forced outage on November 3, 2020.

(2) The inspectors observed and evaluated licensed operator performance in the control room during Unit 2 startup after the main feedwater control system forced outage on December 13, 2020.

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

(1) The inspectors observed and evaluated a Unit 2 simulator scenario for the loss of main feedwater pump abnormal operating procedure on November 13, 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 (SSCs) remain capable of performing their intended function:

(1) Unit 1 emergency feedwater initiation and control, Channel C, PS-2 failure on November 9, 2020 Aging Management (IP Section 03.03)

(1) There were no inspections or tests of passive long-lived SSCs that did not pass their acceptance criteria on Unit 1 or Unit 2.

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) Unit 2 control room ventilation damper 2UCD-8683 failure on November 13, 2020

(2) Unit 1 service water P-4C pump/bay after bay outage on December 17, 2020

(3) Unit 2 service water 2P-4B after motor replacement on December 22, 2020

71111.19 - Post-Maintenance Testing

Post-Maintenance Test Sample (IP Section 03.01) (3 Samples)

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

(1) Unit 1 post-repair testing of 125 V safety-related battery charger D04A on October 12, 2020

(2) Unit 2 post-repair testing of control room ventilation damper 2UCD-8683 on November 20, 2020

(3) Unit 2 post-maintenance testing of service water B shutdown cooling heat exchanger inlet valve 2CV-1426-2 on November 17, 2020

71111.22 - Surveillance Testing

The inspectors evaluated the following surveillance tests:

Surveillance Tests (other) (IP Section 03.01)

(1) Unit 1 emergency feedwater initiation and control, Channel D, surveillance on

December 23, 2020 Inservice Testing (IP Section 03.01) (1 Sample)

(1) Inservice testing of Unit 2 valves 2CV-1039-1 (emergency feedwater motor-operated valve), 2CV-5612-1 (containment spray check valve), and 2CV-5613-2 (containment spray check valve), on November 12, 2020

FLEX Testing (IP Section 03.02) (1 Sample)

(1) FLEX diesel-driven pump surveillance activities on December 9,

OTHER ACTIVITIES - BASELINE

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

MS09: Residual Heat Removal Systems (IP Section 02.08) ===

(1) Unit 1 (October 1, 2019, through September 30, 2020)

(2) Unit 2 (October 1, 2019, through September 30, 2020)

MS10: Cooling Water Support Systems (IP Section 02.09) (2 Samples)

(1) Unit 1 (October 1, 2019, through September 30, 2020)

(2) Unit 2 (October 1, 2019, through September 30, 2020)

71152 - Problem Identification and Resolution

Semiannual Trend Review (IP Section 02.02) (1 Sample)

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

71153 - Followup of Events and Notices of Enforcement Discretion Event Followup (IP Section 03.01)

(1) The inspectors evaluated the unplanned shutdown of Unit 2 for the feedwater heater 2E-2B leak and the licensees response on November 6, 2020.

(2) The inspectors evaluated the trip of Unit 2 due to the loss of main feed pump A and the licensees response on December 10,

OTHER ACTIVITIES

- ADDITIONAL REVIEWS On September 23, 2020, the NRC issued ANO Inspection Report 05000313/2020404 and 05000368/2020404 (ADAMS Accession No. ML20267A403), which documented the results of NRC Office of Investigations Report 4-2019-009 and included a Notice of Violation (NOV) for willful misconduct related to the control of prohibited items in the protected area. Region IV staff reviewed the licensees corrective actions associated with the NOV. The staff determined that the licensee took appropriate corrective actions once they learned of the issue, including investigation of the issue, taking disciplinary actions against the individuals involved, and implementing additional corrective actions to inform contract personnel of the impact of any willful actions on their part. Additionally, the staff considered that the willful actions taken by the contractor staff occurred while the licensee was in the process of implementing a Confirmatory Order issued to Entergy to correct willful actions. The Agency has stated that, the NRC has confidence that the corrective actions taken or planned by Entergy will correct the problems and there has been substantial NRC involvement to ensure that Entergy adequately implements those actions. Therefore, based on the corrective actions taken by Entergy to address willful action across the fleet, and specifically the corrective actions taken by the licensee for this specific incident, Region IV staff have determined that no additional follow-up actions are planned or necessary as delineated by Inspection Procedure 92702 for this escalated enforcement action.

INSPECTION RESULTS

Incorrect Gasket Installed on High-Pressure Feedwater Heater 2E-2B Results in Forced Shutdown Cornerstone Significance Cross-Cutting Report Aspect Section Initiating Events Green [H.5] - Work 71153 FIN 05000368/2020004-01 Management Open/Closed A self-revealed, Green finding was identified for the licensees failure to follow Work Order 52770426 and associated Procedure EN-WM-102, Work Implementation and Closeout, Revision 12, which states that coordination and control of work activities will be performed by the implementing work group supervisors/team leaders or designees in accordance with Procedure EN-MA-101, Conduct of Maintenance. Specifically, during the fall 2018 refueling outage, supplemental maintenance workers installed the wrong gaskets on the Unit 2 high-pressure feedwater heaters (2E-1B and 2E-2B) contrary to work order requirements. This failure resulted in a leak in the 2E-2B feedwater heater and required a rapid unit shutdown and forced outage on November 1, 2020, to replace the gaskets.

Description:

On November 1, 2020, site personnel observed high temperature water/steam spraying from the 2E-2B feedwater heater in the Unit 2 turbine building. The degrading conditions of the leak and safety concerns for personnel and nearby equipment led the site to shut down the reactor on that same day, November 1, 2020, by use of their Abnormal Operating Procedure 2203.053, for Rapid Power Reduction. The site wrote Condition Report CR-ANO-2-2020-03546 and performed an investigation of the event. The investigation revealed that supplemental maintenance workers had failed to install the correct gasket during maintenance on the 2E-2B feedwater heater. During an extent of condition review of the other high-pressure feedwater heaters, the licensee identified that the 2E-1B feedwater heater also had an incorrect gasket installed.

The sites causal analysis concluded that the maintenance workers likely switched gaskets between high-pressure heaters and low-pressure heaters that were opened during the same maintenance window in 2018. During that maintenance window, three high-pressure feedwater heaters and four low-pressure feedwater heaters were opened, providing the opportunity for gasket mix-up. Additionally, the 2E-2A gasket was replaced at the end of the 2018 outage due to leakage during system pressurization. At the time of this inspection, the site had not yet verified that the low-pressure heaters contained gaskets designated for high-pressure heaters because that condition would result in stronger gaskets than necessary for the application and would not represent a failure vulnerability. The site did verify that sufficient amounts of the proper type and number of heater gaskets were provided to maintenance workers for the feedwater heater maintenance window. Although there are similarities between the low-pressure gaskets and high-pressure gaskets, the gaskets were labeled with part numbers and there were also differences that should have been apparent to skilled workers.

The site missed an opportunity for early detection of the gasket mix-up when a gasket leak occurred on the 2E-2A high-pressure feedwater heater as it was being pressurized after the maintenance window in November 2018. That gasket was replaced without documenting whether the leaking gasket was the correct material. The condition report (CR) written in 2018 recommended checking the manway covers on the other feedwater heaters that had been worked on, but there was no documentation for those checks. The causal analysis stated that the addition of a gasket verification step in the work order would have prevented the installation of the incorrect gaskets.

Corrective Actions: Unit 2 high-pressure feedwater heater gaskets (2E-1B and 2E-2B) were replaced during the forced outage.

Corrective Action References: Condition Reports CR-ANO-2-2020-03546 and CR-ANO-2-2020-03556

Performance Assessment:

Performance Deficiency: The licensees failure to follow instructions in Work Order 52770426 and Procedure EN-WM-102 when installing gaskets on the Unit 2 high-pressure feedwater heater manway covers during the fall 2018 refueling outage was a performance deficiency.

Screening: The inspectors determined the performance deficiency was more than minor because it was associated with the Human Performance attribute of the Initiating Events cornerstone and adversely affected the cornerstone objective to limit the likelihood of events that upset plant stability and challenge critical safety functions during shutdown as well as power operations. Specifically, the installation errors caused a feedwater heater gasket failure and required an emergent, unplanned plant shutdown in order to replace the gaskets.

Significance: The inspectors assessed the significance of the finding using Appendix A, The Significance Determination Process (SDP) for Findings At-Power. The inspectors determined that the finding had very low safety significance (Green) because it did not cause a reactor trip AND the loss of mitigation equipment relied upon to transition the plant from the onset of the trip to a stable shutdown condition (Exhibit 1, Section B).

Cross-Cutting Aspect: H.5 - Work Management: The organization implements a process of planning, controlling, and executing work activities such that nuclear safety is the overriding priority. The work process includes the identification and management of risk commensurate to the work and the need for coordination with different groups or job activities. Specifically, the licensee did not implement a process for appropriate control and execution of work activities performed by the supplemental workers. As a result, the wrong gasket material was used for two (and potentially three) high-pressure feedwater heater covers.

Enforcement:

Inspectors did not identify a violation of regulatory requirements associated with this finding.

EXIT MEETINGS AND DEBRIEFS

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

• On January 14, 2021, the inspectors presented the integrated inspection results to Mr. J. Dinelli, Site Vice President, and other members of the licensee staff.

DOCUMENTS REVIEWED

Inspection Type Designation Description or Title Revision or

Procedure Date

71111.01 Corrective Action CR-ANO- 2-2020-03330, 2-2020-03331

Documents

Procedures 2106.032 Unit 2 Freeze Protection Guide 29

EN-FAP-WM-016 Seasonal Reliability 2

71111.04 Corrective Action CR-ANO- 1-2020-00123, 1-2020-00958, 1-2020-00961, 1-2020-

Documents 01346, 1-2020-01347, 2-2020-00287, 2-2020-01307, 2-

20-01684, 2-2020-03099, 2-2020-03660, 2-2020-03664

Procedures OP-1104.029 Service Water and Auxiliary Cooling System 121

OP-1104.050 Turbine Building, Intake Structure and Miscellaneous 9

Ventilation

OP-2106.006 Emergency Feedwater System Operations 104

STM 2-42 SW and ACW Systems 38

ULD-2-SYS-10 Unit-2 Service Water System 14

Work Orders WO 52767294, 52879593, 52895491, 52928200

71111.05 Calculations CALC-85-E-0053- Combustible Loading Calc for Fire Area E 4

Fire Plans Unit 1 Pre-Fire Plan 21

Unit 2 Pre-Fire Plan 17

Miscellaneous FHA Fire Hazard Analysis Arkansas Nuclear One - Unit 1 and 19

Unit 2

Procedures OP-2203.049 Fires in Areas Affecting Safe Shutdown 20

71111.11Q Miscellaneous A2SPGLOR210302 Unannounced Causalities 2 0

Procedures EN-RE-302 PWR Reactivity Maneuver 5

OP-2102.004 Power Operation 68, 69

OP-2102.016 Reactor Startup 28

OP-2106.006 Emergency Feedwater System Operation 104

OP-2106.007 Main Feedwater Pump and FWCS Operation 64

OP-2106.010 Condenser Vacuum System 35

OP-2203.027 Loss of Main Feedwater Pump 18

71111.12 Corrective Action CR-ANO- 1-2010-03755, 1-2011-01554, 1-2012-01677, 1-2015-

Documents 03742, 1-2016-02847, 1-2016-05281, 1-2017-00143, 1-

2017-01565, 1-2017-02543, 1-2019-00292, 1-2019-04637,

Inspection Type Designation Description or Title Revision or

Procedure Date

1-2020-00260, 1-2020-00445, 1-2020-00462, 1-2020-

00571, 1-2020-00598, 1-2020-01124, 1-2020-01317, 1-

20-01479, 1-2020-01663, 1-2020-01667,

Drawings 58526-083 Power Supply Assembly 0

E-22 Engineered Safeguards and 125 Volt DC Distribution 74

Panels

E-258 EFIC Wiring Diagram 0

Miscellaneous IEEE 308 Standard Criteria for Class 1E Power Systems for Nuclear 1971

Power Generating Stations

STM 1-66 Emergency Feedwater Initiation and Control 12

Procedures ULD-1-SYS-08 Emergency Feedwater Initiation and Control System 7

71111.15 Corrective Action CR-ANO- 2-2020-02854, 2-2020-02865, 2-2020-03480, 2-2020-

Documents 03487, 2-2020-03488, 2-2020-03489, 2-2020-03498, 2-

20-03502, 2-2020-03759, C-2020-02837

Procedures OP-1104.029 Service Water and Auxiliary Cooling System 120

OP-1403.191 Motor Testing Using MCE/EMAX 15

OP-1411.084 Unit 1 Sluice Gate and SW Bay Cleaning and Inspection 17

OP-2403.004 Unit 2 - 2P-4A, B & C Service Water Pump Motor 29

Maintenance and Testing

OP-6030.211 Motor Run Test 3

Work Orders WO 552610, 552944, 50237135, 52652306, 52830108,

2875953

71111.19 Corrective Action CR-ANO- 1-2020-01690, 1-2020-01691, 2-2020-03686, 2-2020-

Documents 03717, 2-2020-03502

Drawings A5-E-17, Sheet 1A Green Train Vital AC and 125VDC Single Line and 20

Distribution

E-18-59, Sheet 1 Schematic 500A Battery Charger 125VDC, 480VAC, 3PH, 0

60Hz

Miscellaneous 481292 Work Request

ECR-24917 Engineering Change Request

Regulatory Design, Inspection, and Testing Criteria for Air Filtration 06/1973

Guide 1.152 and Adsorption Units of Post-Accident Engineered-Safety-

Feature Atmosphere Cleanup Systems in Light-Water-

Cooled Nuclear Power Plants

Inspection Type Designation Description or Title Revision or

Procedure Date

Regulatory Demonstrating Control Room Envelope Integrity at Nuclear 05/2003

Guide 1.197 Power Reactors

Procedures EN-MA-148 Use of VIPER or VOTES Infinity Motor Operated Valve 5

Diagnostics

OP-1000.120 Fire Impairment Program 26

OP-2104.007 Control Room Emergency Air Conditioning and Ventilation 79

System

OP-5120.523 Control Room Envelope Habitability Program 3

Work Orders WO 472838-01, 548443-02, 552232-01, 552610, 52874668-01

71111.22 Corrective Action CR-ANO- 1-2020-02057, 2-2020-01305, 2-2020-01307, 2-2020-

Documents 01410, 2-2020-01459, 2-2020-01462, 2-2020-01463, 2-

20-01591, 2-2020-01871, 2-2020-01991, 2-2020-02232,

2-2020-02451, 2-2020-02467, 2-2020-02668, 2-2020-

03067, C-2020-00902, C-2020-01030

Procedures OP-1101.008 Surveillance Frequency Control Program 3

OP-1304.208 Unit 1 EFIC Channel D Monthly Test, ST Pressure Greater 28

Than 750 PSIG

OP-2104.005 Containment Spray 87

Work Orders WO 506581, 525675, 544751, 545045, 555551, 52864675,

2885796, 52913133, 52915211

71151 Miscellaneous 4Q19 MSPI T-Sheets RHR-CWS

1Q20 MSPI T-Sheets RHR-CWS

2Q20 MSPI T-Sheets RHR-CWS

3Q20 MSPI T-Sheets RHR-CWS

71152 Corrective Action CR-ANO- 1-2020-01492, 1-2020-01624, 1-2020-01690, 1-2020-

Documents 01691, 2-2018-02328, 2-2020-02968, 2-2020-03061, 2-

20-03456, 2-2020-03629, C-2020-02247, C-2020-02663

Miscellaneous Audit Nuclear Independent Oversight Functional Area 10/30/2020

Performance Report

QA Audit Report 2019 QA Audit of Operations and Technical Specifications 07/19/2019

NQ-2019-020 at Arkansas Nuclear One

QA Audit Report ANO Maintenance Audit Report QA-10-2020-ANO-1 07/17/2020

NQ-2020- 027

QA Audit Report 2020 QA Audit of Maintenance Program at Arkansas 07/14/2020

Inspection Type Designation Description or Title Revision or

Procedure Date

QA-10-2020-ANO- Nuclear One (ANO)

System Health ANO l Unit 1 l CS, HD - Condensate, Heater Drains

Report Q2-2020

System Health ANO l Unit 1 l FW - Main Feed Water

Report Q2-2020

System Health ANO l Unit 2 l FW - Main Feed Water

report Q2-2020

System Health ANO l Unit 2 l SWC - Stator Water Cooling (Mechanical)

Report Q2-2020

71153 Corrective Action CR-ANO- 2-2020-03546, 2-2020-03547, 2-2020-03553, 2-2020-

Documents 03554, 2-2020-03555, 2-2020-03556, 2-2020-03570, 2-

20-03672, 2-2020-03840, 2-2020-03841, 2-2020-03842,

2-2020-03843, 2-2020-03844, 2-2020-03845

Miscellaneous EN-LI-118 Recollection Forms 12/10/2020

Work Orders WO 333180, 553180

13