IR 05000255/2020011

Design Basis Assurance Inspection (Teams) Inspection Report 05000255/2020011

ML20112F494
Person / Time
Site:	Palisades
Issue date:	04/21/2020
From:	Karla Stoedter NRC/RGN-III
To:	Corbin D Entergy Nuclear Operations
References
IR 2020011
Preceding documents:	ML19357A275 (23 December 2019)
Download: ML20112F494 (12)

Text

April 21, 2020

SUBJECT:

PALISADES NUCLEAR PLANT - DESIGN BASIS ASSURANCE INSPECTION (TEAMS) INSPECTION REPORT 05000255/2020011

Dear Mr. Corbin:

On March 19, 2020, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Palisades Nuclear Plant and 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.

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

This letter, its enclosure, and your response (if any) will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document Room in accordance with Title 10 of the Code of Federal Regulations 2.390, Public Inspections, Exemptions, Requests for Withholding.

Sincerely,

/RA/

Karla K. Stoedter, Chief Engineering Branch 2 Division of Reactor Safety

Docket No. 05000255 License No. DPR-20

Enclosure:

As stated

Inspection Report

Docket Number:

05000255

License Number:

DPR-20

Report Number:

05000255/2020011

Licensee:

Entergy Nuclear Operations, Inc.

Facility:

Palisades Nuclear Plant

Location:

Covert, Michigan

Inspection Dates:

March 02, 2020 to March 19, 2020

Inspectors:

C. Baron, Contractor

J. Benjamin, Senior Reactor Inspector

I. Hafeez, Reactor Inspector

B. Jose, Senior Reactor Inspector

S. Kobylarz, Contractor

E. Sanchez Santiago, Senior Reactor Inspector

Approved By:

Karla K. Stoedter, Chief

Engineering Branch 2

Division of Reactor Safety

SUMMARY

The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting a design basis assurance inspection (teams) inspection at Palisades Nuclear Plant, in accordance with the Reactor Oversight Process. The Reactor Oversight Process is the NRCs program for overseeing the safe operation of commercial nuclear power reactors. Refer to https://www.nrc.gov/reactors/operating/oversight.html for more information.

List of Findings and Violations

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

Additional Tracking Items

None.

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 licensees performance and compliance with Commission rules and regulations, license conditions, site procedures, and standards.

REACTOR SAFETY

===71111.21M - Design Bases Assurance Inspection (Teams)

The inspectors evaluated the following components and listed applicable attributes, permanent modifications, and operating experience:

Design Review - Risk-Significant/Low Design Margin Components (IP Section 02.02)

=

(1) Safety-Related Service Water Pump P-7A

• Updated Final Safety Analysis Report

• Technical Specifications

• Protection Against External Events

• Protection Against Internal Events

• Maintenance Effectiveness

• Overall System Health

• Translation of Vendor Specifications

• Configuration Management

• Testing

• Pump and Check Valve In-service Testing (IST)

• Pump Flow Quarterly and Semi-Annual Flow Verification

• Calculations

• Service Water Outlet Submergence Back Pressure

• Service Water System Hydraulic Model

• Generation of Flow Rate Acceptance Criteria for Technical Specification Surveillance Test RO-216

• Emergency Diesel Generator Voltage and Frequency Variation Evaluation on Safety-Related Service Water Pumps

(2) Safety-Related High Pressure Control Air Receiver T-9A

• Design Basis Documents

• Technical Specification Applicability

• Testing

• Small Break Loss of Coolant Accident and Concurrent Loss of Offsite Power Supply Capability

• Maintenance Effectiveness

(3)125 Vdc Distribution Panels ED-11/11A/21/21A

• Load Flow Calculations to determine whether panels were applied within required current ratings

• Voltage Drop Calculations

• Voltage Rating During Battery Equalizing

• Short Circuit and Protective Device Calculations to determine whether equipment was adequately protected and immune from spurious tripping

• Maintenance Schedules, Procedures, and Maintenance Records, including Circuit Breaker Test Requirements, to determine whether panels and associated circuit breakers were properly maintained

• Visual inspection of the 125 Vdc Distribution Panels to assess material condition and the presence of hazards

(4)125 Vdc Station Battery ED-01 and ED-02

• Short Circuit and Protective Device Calculations to determine whether the batteries were adequately protected and immune from spurious tripping

• Battery Surveillance Procedures and Completed Tests to determine whether the acceptance criteria and results were consistent with design basis calculations

• Corrective Action Documents and Maintenance Records to determine whether there were any adverse operating trends

• Visual Inspection of the 125 Vdc Batteries to assess material condition and the presence of hazards due to battery cover cracks

(5)125 Vdc Battery Charger ED-15

• Material Condition and Configuration (e.g., Visual Inspection during a Walkdown)

• Operating Environment

• Consistency Between Station Documentation (e.g., Procedures) and Vendor Specifications

• Maintenance Effectiveness

• Corrective Maintenance Records and Corrective Action History

• Charger Short Circuit Contribution

• Surveillance Testing

• Float and Equalize Voltage and Coordination

Design Review - Large Early Release Frequency (LERFs) (IP Section 02.02) (1 Sample)

(1) Motor Operated Valve (MOV) 3015: Shutdown Cooling Return from Reactor Coolant System

• Updated Final Safety Analysis Report

• Technical Specifications

• Protection Against External Events

• Protection Against Internal Events

• Maintenance Effectiveness

• Overall System Health

• Translation of Vendor Specifications

• In-service and Generic Letter 89-10 Testing

• Calculations

• Weak Link Analysis

• Pressure Lock/Thermal Binding Evaluation

• Generic Letter 89-10 MOV Thrust Window

• Torque Reduction at Elevated Temperatures

• Design Basis Flows and Delta Pressures

• Generic Letter 89-10 Valve Factor

• Generic Letter 89-10 Stem Nut Friction

Modification Review - Permanent Mods (IP Section 02.03) (4 Samples)

(1) Engineering Change (EC) 74105 - SPTS-1474; Replace Speed Switch for Emergency Diesel Generator 1-1

(2) EC 54503 - 250/251-205: Replace Obsolete Overcurrent Relay for Pump P-2B

(3) EC 55409 - Child EC to Replace Motor Control Center Breaker

(4) EC 55441 - Install High Head Auxiliary Feedwater Pump P-8D & Shed and Cross Connect Tanks T-2 to T-939 - NFPA 805 Project

Review of Operating Experience Issues (IP Section 02.06) (2 Samples)

(1) NRC Information Notice (IN) 2017-06, Battery and Battery Charger Short Circuit Current Contributions to a Fault on the Direct Current Distribution System

(2) NRC IN 2002-29 Recent Design Problems in Safety Functions of Pneumatic Systems

INSPECTION RESULTS

No findings were identified.

EXIT MEETINGS AND DEBRIEFS

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

• On March 19, 2020, the inspectors presented the design basis assurance inspection (teams) inspection results to Mr. D. Corbin, Vice President, and other members of the licensee staff.

DOCUMENTS REVIEWED

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

71111.21M Calculations

1/4RB

System Protection Calculation Sheet

1/6C

Primary Loop Shut Down Cooling Valve MO-3015

2/20/2012

1B-205-250-251

Protective Device Calculation for Relay 205/250-251

1D-204-150-151

Update Breaker Setting for Breaker 152-204 of Pump P-7A

EA-A-PAL-94-

279-009

Seismic Analysis and Weak Link Calculation for 12" 1500

Forges Stainless Motor Operated Bolted Bonnet Gate Valve

03/20/1995

EA-C-PAL-00-

258-01

High Pressure Air Single Failure Evaluation

EA-C-PAL-97-

0853

Evaluation of the Effect of Submerged Service Water

System (SWS) Outlets on the Minimum Predicted SWS Rate

Using Pipe - Flo

06/27/1997

EA-C-PAL-99-

209B-01

Generation of Flow Rate Acceptance Criteria for Technical

Specifications Surveillance Test RO-216

EA-CPCP-PAL-

DSS-94-01

GL 89-10 Program Worst Case Pressures and Flows

04/13/1995

EA-EC-235-1

Assessment of the High Pressure Air System's Capacity to

Cycle Valves in the West Engineering Safeguards

EA-EC64020-01

NFPA 805 Related 125 Vdc Electrical Coordination Analysis

EA-ELEC-EDSA-

004

Palisades System Level Under Voltage Relay Setpoint

Determination

EA-ELEC-EDSA-

006

Palisades AC Power System Short Circuit Analysis

EA-ELEC-EDSA-

DC System Battery D02 Short Circuit Analysis

EA-GL-89-10-01

Generic Letter 89-10 Motor Operated Valve (MOV) Thrust

Window Calculations

EA-GL-89-10-05

Design Valve Factors for Palisades GL - 89-10 MOVs

2/03/1999

EA-GL-89-10-10

Periodic Verification of GL-89-10 MOV Operating Margins

Using Static Diagnostic Test Results

EA-GL-8910-02

Torque Loss Calculation for MOVs at Elevated

Temperatures

EA-GL-8910-04

Replacement of MOV Stem Lubricant

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

EA-GL-8910-DP-

Consolidated MOV 89-10 Analysis of the Worst Case

Operating Scenarios

EA-MOV-KALSI-

Fatigue Life Prediction of Limitorque Type SBM/SB/SBD

Actuator Torsional Components

05/11/1995

EA-PIPEFLO-

SWS-01

Service Water Hydraulic Model Using Pipe - Flo

EA-PLTB-02

Pressure Locking Evaluation for MOV 3015 and 3016

Corrective Action

Documents

Resulting from

Inspection

CR-PLP-2020-

00712

20 Design Bases Assurance Inspection, the NRC

Identified a Small Amount of Green Corrosion on Station

Battery ED-01 Cell #43 Positive Post

03/03/2020

CR-PLP-2020-

00737

During DBA Inspection Walkdown of High Pressure Air

Compressor T-9A in East Safeguards, Temporary Lighting

with no Work Tags and Unplugged was Found Around T-9A

03/04/2020

CR-PLP-2020-

00743

Work Order (WO) 52790738 was Found to Be Missing Page

of the Completed RE-133 Procedure

03/05/2020

CR-PLP-2020-

00753

During the 2020 Design Bases Assurance Inspection, the

NRC Questioned why the Dial Setting on One of the

Adjustable Trips on Battery Charger ED-15 Output Breaker

2-15A is Set at a Different Position than the Other

Adjustable Trip Settings

03/05/2020

CR-PLP-2020-

00754

20 Design Bases Assurance Inspection, the NRC

Identified, During an ED-01 Walkdown, a Lid Crack Between

the Positive Posts of Cell #23

03/05/2020

CR-PLP-2020-

00882

During the 2020 Design Bases Assurance Inspection, the

NRC Questioned the Technical Specification Impact from

Non-Functional High Pressure Air Compressors C-6A/B

03/18/2020

CR-PLP-2020-

00888

During the 2020 Design Bases Assurance Inspection, It was

Identified that Section 9.5.2.5 Implies There is a Mitigating

Function for High Pressure Air Compressors

03/18/2020

Drawings

E-1, Sheet 1

Single Line Meter & Relay Diagram, 480 Volt Motor Control

Center

E-1, Sheet A

Single Line Meter & Relay Diagram

E-5, Sheet 1

Single Line Meter & Relay Diagram, 480 Volt Motor Control

Centers

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

E-625

Wiring Diagram Battery D02, Fuse Box JL259

E-8

Single Line Meter & Relay Diagram, 125 Vdc, 120 V

Instrument & Preferred AC System

E-8, Sheet 1

Single Line Meter & Relay Diagram 125 Vdc, 120 V

Instrument & Preferred AC System

E-8, Sheet 2P

25 Vdc Distribution Panel No 2 ED21-1 Breaker Schematic

Diagrams

M-207, Sheet 2

P&ID Auxiliary Feedwater System

M-207, Sheet 3

P&ID P-8D/K-17 Diesel Driven Auxiliary Feedwater System

M-213

P&ID Service Water, Screen Structure and Chlorinator

Engineering

Changes

0000060795

25 Vdc Panel ED-21-1 Replacement

EC#0000054503

250/251-205: Replace Obsolete O/C Relay For Pump P-2B

09/10/2015

Engineering

Evaluations

PLP-RPT-12-

0014

Engineering Report System Protection Engineering

Protective Device Calculation Review (EGAD-ELEC-22)

Miscellaneous

00520027

QO-14A-P-7A IST Service Water Pump

10/25/2019

5608

LCR 25: Foreign Material Inside Jar

05/08/2019

7S007.0

Seismic Test Report for C&D Batteries P/N: LCUN-33

Completed Test:

9.20

Service Water Flow Verification 1R26

11/12/2018

DBD-1.02

Design Basis Document (DBD) Service Water System

DBD-1.05

Design Basis Document for Compressed Air Systems

DBD-2.01

DBD Low Pressure Safety Injection System

DBD-2.04

Design Basis Document for Primary Coolant System

DBD-4.02

DBD for 125 Vdc System (Safety-Related)

DPR-20

Palisades Plant - Facility Operating License

2/21/1991

E11B

Specification for Inverter ED-06, ED-07, ED-08, and ED-09

and Battery Charger D15, D16, D17 and D18 Replacement

E11B-1

Solidstate Controls, Inc. Instruction/Technical Manual 200

Ampere Charger - Palisades

EA-SC-96-033-01

Replace Existing Chargers/Inverters

ESI-SR-17-199

Seismic Qualification of Speed Switch, 125 Vdc Input ESI

P/N: ESI50269B (DYNALCO P/N: SST2400A-424)

LER - 98-006-01

Licensee Event Report - Manual Operator Actions Not

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

Adequately Addressed in Operating Procedures

NB-PSA-SY-CIS

Palisades Probabilistic Risk Analysis (PRA) System

Notebook Containment Isolation and Penetrations

NB-PSA-SY-HPA

Palisades PRA Notebook High Pressure Air System

NB-PSA-SY-PZR

Palisades PRA Notebook Pressurizer Pressure and Level

Control System and Power Operated Relief Valves

NB-PSA-SY-SWS

Palisades PRA Notebook Service Water System

OE-NOE-2017-

00346

NRC-IN-2017-06 - Battery & Battery Charger Short-Circuit

Contributions to a Fault on the Direct Current Distribution

System

10/04/2017

PLLP-ESPO-

PBSO-SWS

Training: Palisades Basis System Orientation - Service

Water System

QO-14B 0120

Completed Test: Inservice Test Procedure - Service Water

Pumps

01/14/2020

RO-144 1R26

Completed Test: Comprehensive Pump Test Procedure,

Service Water Pumps P-7A, P-7B, P-7C 1R26

11/12/2018

SC 96-033

Replace Safety Related Battery Chargers ED-15,16, 17& 18

& Inverters ED-06, 07, 08 & 09

Specification No:

5935-M-11

Specification for Service Water Pumps Palisades Plant

Consumers Power Company

08/25/1967

T-SC-96-033-01

Post Installation Test for Battery Charger 1 (ED-15)

Procedures

AOP-23

Primary Coolant Leak

AOP-23

Primary Coolant Leak

AOP-23

Primary Coolant Leak

ARP-3 Electrical

Auxiliaries and

Diesel Generator

Scheme Rev. 82

EK-05 (EC-11)

Electrical Auxiliaries and Diesel Generator Scheme EK-05

(EC-11)

EN-DC-167

Classification of Structures, Systems, and Components

EOP-4.0

Loss of Coolant Accident Recovery

EOP-9 MVAA-CA

Maintenance of Vital Auxiliaries - Air

EPS-I-10

Diesel Generator 1-1 Electronic Speed Switch Calibration

and Interlock Check

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

Procedure No

1.01

Material Condition Standards and Housekeeping

Responsibilities

RT-41

Pressurizer Safety Valves RV-1039, RV-1040, RV-1041

SOP-12

Feedwater System

SOP-20

High Pressure Control Air System

Work Orders

00515984-01

C-6A, Replace HP & LP Heads

08/19/2019

51660162-01

ED-15; Overhaul Battery Charger

05/06/2010

2436095

VOP 315 Static Test

03/30/2017

2646112-02

Design Engineering System Protection - Settings Station

Battery Charger #1 ED-15

05/02/2017

2687593-01

ED-15 Battery Charger #1 PM

11/09/2017

2693245-01

RE-133 -ED-15, Battery Charger No 1 Performance Test

11/09/2017

2713165-01

SPTS-1474; Replace Speed Switch (EC 75105)

2/06/2018

2722763-02

1-1 Diesel Tach Pak Calibration

2/08/2018

2764439

Inspect Electrical Panel Water Seals

2847642

QO-4 Shutdown Cooling Valves IST

07/31/2019