IR 05000528/2024012

Age-Related Degradation Inspection Report 05000528/2024012, 05000529/2024012 and 05000530/2024012

ML24061A112
Person / Time
Site:	Palo Verde
Issue date:	03/04/2024
From:	Vincent Gaddy NRC/RGN-IV/DORS/EB1
To:	Heflin A Arizona Public Service Co
References
IR 2024012
Preceding documents:	ML23270B923 (28 September 2023)
Download: ML24061A112 (10)

Text

SUBJECT:

PALO VERDE NUCLEAR GENERATING STATION - AGE-RELATED DEGRADATION INSPECTION REPORT 05000528/2024012 AND 05000529/2024012 AND 05000530/2024012

Dear Adam Heflin:

On February 16, 2024, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Palo Verde Nuclear Generating Station and discussed the results of this inspection with Todd Horton, Senior Vice President, Nuclear Regulatory and Oversight 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, Vincent G. Gaddy, Chief Engineering Branch 1 Division of Operating Reactor Safety Docket Nos. 05000528, 05000529, 05000530 License Nos. NPF-41, NPF-51, NPF-74

Enclosure:

As stated

Inspection Report

Docket Numbers: 05000528, 05000529 and 05000530

License Numbers: NPF-41, NPF-51 and NPF-74

Report Numbers: 05000528/2024012, 05000529/2024012 and 05000530/2024012

Licensee: Arizona Public Service

Facility: Palo Verde Nuclear Generating Station

Location: Wintersburg, AZ

Inspection Dates: January 29, 2024, to February 16, 2024

Inspectors: J. Braisted, Senior Reactor Inspector D. Reinert, Senior Reactor Inspector F. Thomas, Reactor Inspector

Approved By: Vincent G. Gaddy, Chief Engineering Branch 1 Division of Operating Reactor Safety

Enclosure

SUMMARY

The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting an age-related degradation inspection at Palo Verde Nuclear Generating 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.

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

REACTOR SAFETY

71111.21N.04 - Age-Related Degradation Age-Related Degradation

(1) Unit 1 Safety Injection Combined Recirculation to Refueling Water Tank Isolation Valve 1JSIAUV0660

(2) Unit 1 Essential Spray Pond Pump Motor 1MSPAP01

(3) Unit 2 Containment Building Radiation Monitor 2JSQBRU0001

(4) Unit 2 Fire Protection Panel Batteries 2JFPNF49

(5) Unit 2 Main Steam Isolation Valve 2JSGEUV0180

(6) Unit 1 EDG Generator 1EPEAG01

(7) Unit 1 Molded Case Circuit Breaker 1EPHAM3118

(8) Unit 3 Channel B Balance of Plant (BOP) - Engineered Safety Feature Actuation System (ESFAS) Cabinet

(9) Unit 3 4kV Circuit Breaker 3PBBS04C

(10) Unit 3 480V Inverter 3PKCN43

(11) Unit 1 Charging Pump Pulsation Dampener 1CHAX07

(12) Unit 1 Hydrogen Analyzer Temperature Switch 1JHPBTSHL0014

(13) Unit 1 Atmospheric Dump Valve Position Controller 1JSGAHY0179C

(14) All Units Auxiliary Building Seismic Gap Seals

INSPECTION RESULTS

No findings were identified.

EXIT MEETINGS AND DEBRIEFS

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

• On February 16, 2024, the inspectors presented the Age-Related Degradation inspection results to Todd Horton, Senior Vice President, Nuclear Regulatory and Oversight and other members of the licensee staff.

DOCUMENTS REVIEWED

Inspection Type Designation Description or Title Revision or

Procedure Date

71111.21N.04 Corrective Action Condition Report 19-05711, 21-01066, 21-01744, 21-02229, 21-10668, 22-

Documents (CR) 02105, 22-02196, 22-02224, 22-02642, 22-07032, 22-

259, 22-10093, 22-12526, 23-02133, 23-07532, 23-

07532, 19-09602, 23-04824, 23-12950, 22-07188, 23-

06393, 23-08657, 23-09459, 23-10160, 23-10502, 23-

11634, 20-09602, 21-01548, 22-06475, 23-09451

Condition Report 3206566, 3556860, 4574922

Action Item

(CRAI)

Condition Report 3193437, 3481107, 4636321

Disposition

Request (CRDR)

Corrective Action Condition Report 23-12931, 23-12932, 23-12933, 24-00905, 24-00911, 24-

Documents (CR) 00912, 24-00913, 24-00978, 24-01000, 24-01245, 24-

Resulting from 01381, 24-01393, 24-01401, 24-01409, 24-01468

Inspection

Drawings 01-E-PBA-002 SINGLE LINE DIAGRAM, 4.16 KV CLASS 1E POWER 16

SYSTEM SWITCHGEAR 1E-PBB-S04

01-E-PHA-001 SINGLE LINE DIAGRAM, 480V CLASS 1E POWER 21

SYSTEM, MOTOR CONTROL CENTER 1E-PHA-M31

01-E-PKA-004 SINGLE LINE DIAGRAM, 125V DC CLASS 1E POWER 16

SYSTEM DC CONTROL CENTER1E-PKC-M43 & 1E-PKC-

D23

01-E-SPB-012, Elementary Diagram, Essential Spray Pond System, Margin 2

Sheet 1 of 2 Recovery Bypass Valves 1J-SPA-HV-075 & 1J-SPB-HV-

076

01-E-SPB-012, Elementary Diagram, Essential Spray Pond System, Margin 2

Sheet 2 of 2 Recovery Bypass Valves 1J-SPA-HV-075 & 1J-SPB-HV-

076

01-E-SPF-012, Control Wiring Diagram, Essential Spray Pond System 1

Sheet 1 of 2 Margin Recovery Bypass Valves 1J-SPA-HV-075 & 1J-SPB-

HV-076

Inspection Type Designation Description or Title Revision or

Procedure Date

JN603-A00025 TARGET ROCK SOV MODEL NO. 77L-002BB PROJECT 0

CONTROL DRAWING

Engineering DEC-0747 Replacement of ADV Masoneilan Model 8005N I/P 3

Changes Transducers

Engineering 19-01360-065 Equipment Reliability Engineering Template (ERET) 09/24/2020

Evaluations 2952421

Miscellaneous EEQ-S124-001 Skinner Valve Division, Honeywell, Inc, V5H Series, 14

Solenoid Valves

EEQ-T020-004 Target Rock, Solenoid Operated Valve (SOV), 77L-002, 13

77L-002BB and 98F-001 (Modified 80B-001)

ERET 2827017 Work Scope Basis Atmospheric Dump Valve Position and 01/11/2024

Control Loops

ERET 2827053 OPERATOR HYDRALIC SG 1 ECONOMIZER 16

FEEDWATER UPSTREAM ISOL VALVE

FP DBM FIRE PROTECTION SYSTEM 15

HP DBM Containment Hydrogen Control System 14

J104-00252 Palo Verde Generating Station (PVGS) Balance of Plant 004

(BOP) Engineered Safety Features Actuation System

(ESFAS) Project Plan

JN603-A00026 TARGET ROCK SOV MODEL NO. 77L-002BB PROJECT 0

TECHNICAL MANUAL

ODCR 93J-AS-01 VTM/VTO Figures 3-1, 7-2, 8-3, 9-2 and 10-2 do not depict 12/23/1993

the current plant design. Change these figures to rep-resent

the nominal system voltage Ievel of 28 VDC, as opposed to

the 24 VDC indicated.

PMB 248279 Preventative Maintenance Basis 1JHPBTC0014 03/03/2022

SG DBM MAIN STEAM 34

SI DBM SAFETY INJECTION SYSTEM 41

SP DBM Essential Spray Pond System 23

SQ DBM Radiation Monitoring System 16

VTD-A391-00010 ANCHOR/DARLING INSTRUCTION MANUAL FOR MAIN 14

STEAM ISOLATION VALVES (MSIV) AND FEEDWATER

ISOLATION VALVES (FWIV) [PUB.# E9023-9]

VTD-G063-0002- GENERAL ATOMIC (SORRENTO DIVISION) 04/08/98

Inspection Type Designation Description or Title Revision or

Procedure Date

INSTRUCTION MANUAL FOR BALANCE OF PLANT

ENGINEERED SAFETY FEATURES ACTUATION

SYSTEM (BOP ESFAS) [PUB. #E-115-760].

VTD-G080-00115 GENERAL ELECTRIC TESTING & MAINTENANCE OF 02

MOLDED CASE CIRCUIT BREAKERS (GET-2963B).

VTD-G080-00202 General Electric Maintenance and Lubrication for GE Type 2

AK and AKR Circuit Breakers Information Letters (Pub. #SIL

448 and PB 300.1)

VTD-G080-0394 GENERAL ELECTRIC INSTRUCTIONS FOR METAL- 1

CLAD SWITCHGEAR TYPES M26 AND M36 [PUB. # GEH-

1802X]

VTD-G080-0409 GENERAL ELECTRIC INSTRUCTIONS AND 2

RECOMMENDED PARTS FOR MAINTENANCE FOR

MAGNE-BLAST CIRCUIT BREAKER TYPE: AM-4.16-250-9

200 & 2000 AMPERES WITH ML-13 MECHANISM

VTD-G080-0643 BINGHAM WILLAMETTE CO. INSTRUCTIONS FOR 1

GENERAL ELECTRIC PUMP MOTOR [PUB. # GEK72703]

VTD-G250-00002 Greer Hydraulics Operation and Maintenance Instructions 4

for 5 Gallon Pulse-Tone

VTD-G985-0002 GATES ENERGY PRODUCTS SEALED-LEAD BATTERY 0

SELECTION GUIDE [PUB. # GEP-0061]

VTD-K020-00003 KAMAN EASY-REFERENCE GUIDE TO EQUIPMENT 2

DESCRIPTION AND TEST PROCEDURES

VTD-K020-00004 KAMAN INTRODUCTION AND OVERVIEW OF 2

RADIATION MONITORING SYSTEM

VTD-K020-00005 KAMAN MAINTENANCE INSTRUCTIONS FOR FIELD 1

UNIT MONITORS

VTD-K020-0032 KAMAN INSTRUCTIONS FOR SAFETY-RELATED 1

MONITORING SYSTEM MODULE (SRMS)

VTD-P292-0007 PORTECINC. FIELD REPAIR PROCEDURE FOR 0

BROKEN POLE WASHERS [PUB. # ER6.1].

VTD-P292-0009 PORTEC Inc. Master File Concerning Slip Ring Surface 0

Film [Pub. #SM-1390]

VTD-R369-0016 ROSEMOUNT MODEL 1152 ALPHALINE PRESSURE 9

Inspection Type Designation Description or Title Revision or

Procedure Date

TRANSMITTERS FOR NUCLEAR SERVICE (PUB #4235)

VTD-T020-00011 TARGET ROCK TECHNICAL MANUAL FOR SOLENOID 0

OPERATED GLOBE VALVES [PUB. #TM100-591]

VTD-T020-00016 TARGET ROCK TECHNICAL MANUAL FOR SOLENOID 5

OPERATED VALVES [PUB. # 1571]

VTD-W290- WOODWARD MAGNETIC PICKUPS AND PROXIMITY 04

00021 SWITCHES FOR ELECTRONIC CONTROLS

VTD-W290- Woodward Installation and Operation Manual of Digital 000

00046 Reference Unit with High, Low, and Intermediate Setpoints

(Manual

2006A)

VTM-B265-0001 BINGHAM WILLAMETTE ESSENTIAL SPRAY PONDS 3

PUMPS

Procedures 30DP-9MP08 Preventive Maintenance Program 30

2MT-9PE01 Cleaning, Inspection, and Testing of the Class 1E Diesel 50

Generator

2MT-9ZZ21 4.16 kV Motor Operational Testing 7

2MT-9ZZ34 Maintenance of AM-16-250-9H GE Magne-Blast Circuit 43

Breakers

2MT-9ZZ58 Preventive Maintenance of Elgar Inverters 42

2MT-9ZZ74 Molded Case Circuit Breaker Test 53

36MT-9SA01 Balance of Plant Engineered Safety Features Actuation 13

System Functional Test

40OP-9CH13 Charging Pump Suction Stabilizer and Discharge Pulsation 32

Dampener Operation

40ST-9ZZ25 Remote Shutdown Disconnect Switch and Control Circuit 13

Operability - All Modes

70DP-0MR02 Maintenance Rule Monitoring Process 0

73DP-0EE05 Engineering Preventive Maintenance Program 19

81DP-0ZZ01 Civil System, Structure, and Component Monitoring 27

Program

Work Orders Work Order (WO) 4639813, 4316955, 4317317, 4441180, 4909539, 4909539,

4918343, 5035501, 5074203, 5086829, 5136824, 5177336,

5174927, 5178832, 5256401, 5268656, 5280710, 5289756,

Inspection Type Designation Description or Title Revision or

Procedure Date

297453, 5297583, 5316296, 5316668, 5330264, 5330242,

5341265, 5350334, 5357323, 5361396, 5376904, 5385635,

5387507, 5405208, 5423351, 5432442, 5456441, 5456889,

5460997, 5477186, 5480011, 5480032, 5480079, 5488694,

5516678, 5262915, 5532150, 5551685, 5532343, 5133794,

295926, 5446679, 4950704, 4750426, 5308041, 546622,

546623

8