ML19136A409

Emergency Core Cooling System Performance Evaluation Models, 10 CFR 50.46(a)(3)(ii) Annual Report for Calendar Year 2018

ML19136A409
Person / Time
Site:	Palo Verde
Issue date:	05/16/2019
From:	Dilorenzo M Arizona Public Service Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
102-07908-MDD/MSC
Download: ML19136A409 (21)

Text

10 CFR 50.46(a)(3)(ii)

Qaps 102-07908-MDD/MSC May 16, 2019 Palo Verde Nuclear Generating Station 5871 S. Wintersburg Road Tonopah, AZ 85354 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

Subject:

Palo Verde Nuclear Generating Station Units 1, 2, and 3 License Nos. NPF-41, NPF-51 and NPF-74 Docket Nos. STN 50-528, 50-529, 50-530 Emergency Core Cooling System Performance Evaluation Models, 10 CFR 50.46(a)(3)(ii) Annual Report for Calendar Year 2018 Pursuant to 10 CFR 50.46(a)(3)(ii), Arizona Public Service Company (APS) is providing a summary of the cumulative effects on calculated peak cladding temperature (PCT) for the Palo Verde Nuclear Generating Station (PVNGS) due to changes or errors in Emergency Core Cooling System (ECCS) performance evaluation models.

There were no changes or errors that affected PCT in either the large break loss of coolant accident (LOCA) or the small break LOCA calculations for PVNGS Units 1, 2, and 3 for calendar year (CY) 2018. Additionally, because PCT is not calculated as part of the post-LOCA long-term cooling (LTC) analysis, there are no changes or errors in the LTC models that affect PCT.

The enclosures provide a more detailed discussion of the absolute PCT effects in the Westinghouse (formerly Combustion Engineering) models for pressurized water reactors ECCS performance analyses in CY 2018 for PVNGS.

Additionally, in January of CY 2018, the Nuclear Regulatory Commission staff issued an approved Safety Evaluation (SE) [Agencywide Document Access and Management System (ADAMS) Accession No. ML17319A107] to APS to allow the use of Westinghouse Next Generation Fuel (NGF) in PVNGS Units 1, 2, and 3. As part of the this SE, the NRC staff reviewed the ECCS performance / LOCA analyses and concluded that the analyses have been appropriately performed and the results demonstrate adequate performance of the ECCS, considering the transition to and operation with full cores of NGF.

None of the PVNGS units cores in CY 2018 contain NGF type fuel, however, starting in CY 2019 PVNGS units will begin transitioning to NGF. As such, this 10 CFR 50.46 A member of the STARS Alliance LLC Callaway

• Diablo Canyon

• Palo Verde

• Wolf Creek

102-07908-MDD/MSC ATTN: Document Control Desk U. S. Nuclear Regulatory Commission ECCS Performance Evaluation Models, 10 CFR 50.46(a)(3)(li) Annual Report for 2018 Page 2 annual report includes preliminary PCT rackup sheets for these future year (CY 2019)

NRC approved ECCS Performance analyses.

No commitments are being made to the NRC by this letter. Should you need further information regarding this submittal, please contact, Matthew S. Cox, Licensing Section Leader, at (623) 393-5753.

Sincerely, Michael D. DiLorenzo Department Leader, Regulatory Affairs MDD/MSC/CJS :

Summary of Cumulative Effects on Calculated Peak Clad Temperature (PCT) for PVNGS Due to Changes/Errors in Emergency Core Cooling System (ECCS) Performance Evaluation Models ;

Westinghouse Electric Company Letter, Palo Verde Nuclear Generating Station Units 1, 2, and 3, 10 CFR 50.46 Annual Notification and Reporting for 2018, letter number LTR-LIS 46, Revision 1, dated April 9, 2019 cc:

S. A. Morris S. P. Lingam C. A. Peabody NRC Region IV Regional Administrator NRC NRR Project Manager for PVNGS NRC Senior Resident Inspector for PVNGS Summary of Cumulative Effects on Calculated Peak Clad Temperature (PCT) for PVNGS Due to Changes/Errors in Emergency Core Cooling System (ECCS) Performance Evaluation Models Summary of Cumulative Effects on Calculated PCT for PVNGS Due to Changes/Errors in ECCS Performance Evaluation Models Table 1: Large Break LOCA Margin Summary Sheet for 2018 Plant Name:

Palo Verde Nuclear Generating Station Units 1, 2, and 3 Utility Name: Arizona Public Service Company (APS)

Evaluation Model:

Westinghouse (formerly Combustion Engineering) 1999 EM Peak Clad Temperature:

2106 °F (analysis of record reported in PVNGS UFSAR Section 6.3.3)

A. Cumulative 10 CFR 50.46 Changes and APCT =

Error Corrections - Previously Reported Net PCT Effect

+ 0 °F Absolute PCT Effect

+ 0 F B. 10 CFR 50.46 Changes and Error Corrections - New for CY 2018

1. None Identified for Units 1, 2 and 3 APCT =

+ 0 °F

+ 0 °F

+ 0 F 2106 °F C.

Absolute Sum of Cumulative 10 CFR 50.46 APCT =

Changes and Error Corrections D.

Licensing Basis PCT (Reported in UFSAR)

+ Cumulative PCT Assessments (Changes and Error Corrections)

Note:

PVNGS reanalyzed the Large Break LOCA event with an NRC approved Evaluation Model in 2009, as reported in Letter No. 102-06113, 30-Day Report Pursuant to 10 CFR 50.46(a)(3)(H) and Submittal of Large Break Loss of Coolant Accident Reanalysis Results, dated December 22, 2009 (NRC ADAMS Accession No. ML100040066). The reanalysis incorporated and corrected previously identified changes and errors, resetting the cumulative changes and error corrections that had previously been reported through the end of CY 2008 (NRC ADAMS Accession No. ML091810703).

The sum of the PCT from the most recent analysis of record (AOR) using an acceptable evaluation model, and the estimated cumulative effects of PCT impacts for changes and error corrections made since that AOR, remains less than 2200 °F.

Summary of Cumulative Effects on Calculated PCT for PVNGS Due to Changes/Errors in ECCS Performance Evaluation Models Table 2: Small Break LOCA Margin Summary Sheet for 2018 Plant Name: Palo Verde Nuclear Generating Station Units 1, 2, and 3 Utility Name: Arizona Public Service Company (APS)

Evaluation Model:

Westinghouse (formerly Combustion Engineering) S2M Peak Clad Temperature:

1618°F (analysis of record reported in PVNGS UFSAR Section 6.3.3)

Net PCT Effect

+ 0 °F Absolute PCT Effect

+ 0 °F A.

Cumulative 10 CFR 50.46 Changes and APCT =

Error Corrections - Previously Reported B.

10 CFR 50.46 Changes and Error Corrections - New for CY 2018

1. None Identified APCT =

+ 0 °F

+ 0 °F C.

Absolute Sum of Cumulative 10 CFR APCT =

+ 0 °F 50.46 Changes and Error Corrections D.

Licensing Basis PCT (Reported in UFSAR) 1618 °F

+Cumulative PCT Assessments (Changes and Error Corrections)

The sum of the PCT from the most recent AOR using an acceptable evaluation model, and the estimated cumulative effects of PCT impacts for changes and error corrections made since that AOR, remains less than 2200 °F.

Westinghouse Electric Company Letter, Palo Verde Nuclear Generating Station Units 1, 2, and 3, 10 CFR 50.46 Annual Notification and Reporting for 2018, letter number LTR-LIS-19-46, Revision 1, dated April 9, 2019

Westinghouse Westinghouse Non-Proprietary Class 3 Westinghouse Electric Company 1000 Westinghouse Drive Cranberry Township, Pennsylvania 16066 USA Direct tel: (860)731-6639 e-mail: volodzm@westinghouse.com gancarta@westinghouse.com Our ref: LTR-LIS-19-46, Revision 1 April 9, 2019 Palo Verde Nuclear Generating Station Units 1, 2, and 3 10 CFR 50.46 Annual Notiilcation and Reporting for 2018

Dear Sir or Madam:

This is a notification of 10 CFR 50.46 reporting information pertaining to the Westinghouse Electric Company Evaluation Models/analyses. As committed to in WCAP-13451, Westinghouse Methodology for Implementation of 10 CFR 50.46 Reporting, Westinghouse is providing an Annual Report for Emergency Core Cooling System (ECCS) Evaluation Model changes and errors for the 2018 model year.

All necessary standardized reporting pages for any changes and errors for the Evaluation Models utilized for your plant(s) are enclosed, consistent with the commitment following the NUPIC audit in early 1999.

Peak Clad Temperature (PCT) summary sheets are enclosed. All necessary revisions for any non-zero, non-discretionary PCT changes have been included. Changes with estimated PCT impacts of 0 °F may not be presented on the PCT summary sheet.

This information is for your use in making a determination relative to the reporting requirements of 10 CFR 50.46. The information that is provided in this letter was prepared in accordance with Westinghouse's Quality Management System (QMS). Please contact your LOCA plant cognizant engineer (PCE), Michael Volodzko (860-731-6639), if there are any questions concerning this information.

Revision 1 adds the Future rackup sheets for Next Generation Fuel (NGF).

Author: (Electronically Approved)*

Michael Volodzko LOCA Integrated Services 11 Verified: (Electronically Approved)*

Naugab E. Lee LOCA Integrated Services 11 Author: (Electronically Approved)*

Teresa A. Gancarz LOCA Integrated Services 11 Approved: (Electronically Approved)*

Jason R. Beebe Manager, LOCA Integrated Services II

Attachment:

10 CFR 50.46 Reporting Text and PCT Summary Sheets (14 Pages)

• ElectronicaUy approved records are authenticated in the electronic document management system.

© 20/9 Westinghouse Electric Company LLC All Rights Reserved This record was final approved on 4/9/2019 4:42:18 PM. (This statement was added by the PRIME system upon its validation)

Attachment to LTR-LIS-19-46, Revision 1 April 9,2019 Page 1 of 14 GENERAL CODE MAINTENANCE

Background

There were no changes, error corrections or enhancements to the 1999 EM, which is the EM used in your plants large break loss of coolant accident (LBLOCA) ECCS performance analysis in calendar year 2018. In addition, there were no 2018 changes, error corrections or enhancements to the Supplement 2 evaluation model (S2M), which is the EM used in your plants small break loss of coolant accident (SBLOCA) ECCS performance analysis.

Affected Evaluation Model(s)

None.

Estimated Effect None.

This record was final approved on 4/9/2019 4:42:18 PM. (This statement was added by the PRIME system upon its validation)

Attachment to LTR-LIS-19-46, Revision 1 April 9, 2019 Page 2 of 14 LOCA Peak Cladding Temperature (PCT) Summary Plant Name:

PALO VERDE 1 Utility Name:

Arizona Public Service EM:

1999 EM AOR

Description:

Appendix K Large Break Summary Sheet Status:

Current PCT (-F)

Reference #

Note it ANAI.YSIS-OF-RECORD 2106 1

Delta PCT Reporting ASSESSMENTS*

(-AF)

Reference #

Note#

Year**

AOR + ASSESSMENTS PCT= 2106.0 °F The licensee should delermine the reportabilily of these assessments pursuant to 10 CFR 50.46.

• • The "Reporting Year refers to the annual reporting year in which this assessment was included.

REFERENCES 1

CVER-09-62, Analyis of Record for Large Break LOCA ECCS Performance Analysis Including Replacement Steam Generators and Simplified Head Implementation for PVNGS Units 1,2, and 3, August 2009.

NOTES:

(a) None Version: PALO VERDE 1 VERl_LOCA-50.46_V'ERl_Base_Appendix_K_LBLOCA-1.1 V.V

© 2019 WcMinghouse Electric Company LLC All Rights Reserved This record was final approved on 4/9/2019 4:42:18 PM. (This statement was added by the PRIME system upon its validation)

Attachment to LTR-LIS-19-46, Revision 1 April 9, 2019 Page 3 of 14 LOCA Peak Cladding Temperature (PCT) Summary Plant Name:

PALO VERDE 2 Utility Name:

Arizona Public Serv'ice EM:

1999 EM AOR

Description:

Appendix K Large Break Summary Sheet Status:

Current ANALYSIS-OF-RFXORD PCT (°F)

Reference U 2106 1 Note#

ASSESSMENTS*

Delta PCT (AF)

Reference #

Note#

Reporting Year**

AOR + ASSESSMENTS PCT= 2106.0 °F

• The licensee should delermine Ihe reportability of these assessments pursuant to 10 CFR 50.46.

• • The Reporting Year" refers to the annual reporting year in which this assessment was included.

REFERENCES 1

CVER-09-62, Analysis of Record for Large Break LOCA ECCS Performance Analysis Including Replacement Steam Generators and Simplified Head Implementation for PVNGS Units 1,2, and 3, August 2009.

NOTES:

(a) None Version: PALO VERDE 2 VER2_LOCA-50.46_VER2_Base_Appendi!t_K_LBLOCA - 1.1 V.V

© 2019 Westinghousc Electric Company LLC All RIghU Reserved

' This record was final approved on 4/9/2019 4:42:18 PM. (This statement was added by the PRIME system upon its validation)

Attachment to LTR-LIS-19-46, Revision 1 April 9,2019 Page 4 of 14 LOCA Peak Cladding Temperature (PCT) Summary Plant Name:

PALO VERDE 3 Utility Name; Arizona Public Serx'ice EM:

1999 EM AOR

Description:

Appendix K Large Break Summary Sheet Status:

Current ANA I,YSIS O F-RECORD ASSESSMENTS*

PCT(°F) 2106 Della PCT

(>>AF)

Reference #

I Reference #

Note #

Note#

Reporting Year**

AOR + ASSESSMENTS PCT= 2106.0 °F

• The licen.see should delermine the repoilability of these assessment-s pursuant to 10 CFR 50.46.

The Reporting Year" refers to the annual reporting year in which this assessment was included.

REFERENCES 1

CVER-09-62, "Analysis of Record for Large Break LOCA ECCS Performance Analysis Including Replacement Steam Generators and Simplified Head Implementation for PVNGS Units I, 2, and 3,'

August 2009.

NOTES:

(a) None Version: PALO VERDE 3 VER3_LOCA-50.46_VER3_Base_Appendix_K_LBLOCA -1.1 V.V

© 2019 Weslinghouse Hlectik Company LLC AJI RtllhU Reserved

' This record was final approved on 4/9/2019 4:42:18 PM. (This statement was added by the PRIME system upon its validation)

Attachment to LTR-LIS-19-46, Revision 1 April 9, 2019 Page 5 of 14 LOCA Peak Cladding Temperature (PCT) Summary Plant Name:

PALO VERDE 1 Utility Name:

Arizona Public Service EM:

S2M AOR

Description:

Appendix K Small Break Summary Sheet Status:

Current PCT ('F)

Reference #

Note #

ANALYSIS-OF-RF.CORD 1618 1

Della PCT Reporting ASSESSMENTS*

(°AF)

Reference #

Note if Year**

AOR + ASSESSMENTS PCT= 1618.0 °F

• The licensee should determine the reportability of these assessments pursuant to 10 CFR 50.46.

• • The Reporting Year" refers to the annual reporting year in which this assessment was included.

REFERENCES 1

A-PV-FE-0149, Rev. 001, "Palo Verde Units 1.2 and 3 S2M Bounding SBLOCA ECCS Performance Analysis, March 2002.

NOTES:

(a) None Version: PALO VERDE 1 VERl_LOCA-50,46_VERl_Base_Appendix_K_SBLOCA -1.1 V,V

© 2019 Wcslinghousc Electric Company U.C All RighU Reserved

' This record was final approved on 4/9/2019 4:42:18 PM. (This statement was added by the PRIME system upon its validation)

Attachment to LTR-LIS-19-46, Revision 1 April 9, 2019 Page 6 of 14 LOCA Peak Cladding Temperature (PCT) Summary Plant Name:

PALO VERDE 2 Utility Name:

Arizona Public Service EM:

S2M AOR

Description:

Appendix K Small Break Suminarv Sheet Status; Current PCT (F)

Reference #

Note#

ANAI,YSIS-OF-RF.CORD 1618 1

ASSESSMENTS*

Delta PCT

(°AF)

Reference #

Note#

Reporting Year**

AOR + ASSESSMENTS PCT= 1618.0 °F

• The licensee should determine the repoiiability of these assessments pursuant to 10 CFR 50.46.

• • The "Reporting Year refers to the annual reporting year in which this assessment was included.

REFERENCES 1

A-PV-FE-0149, Rev. 001. "Palo Verde Units 1,2 and 3 S2M Bounding SBLOCA ECCS Performance Analysis," March 2002.

NOTES:

(a) None Version: PALO VERDE 2 VER2_LOCA-S0.46_VER2_Base_Appendix_K_SBLOCA -1.1 V.V

© 2019 Wcstinghousc Electric Company LI.C All Righls Reserved

' This record was final approved on 4/9/2019 4:42:18 PM. (This statement was added by the PRIME system upon its validation)

Attachment to LTR-LIS-19-46, Revision 1 April 9, 2019 Page 7 of 14 LOCA Peak Cladding Temperature (PCT) Summary Plant.Name:

PALO VERDE 3 Utility Name:

Arizona Public Service EM:

S2M AOR

Description:

Appendix K. Small Break Summary Sheet Status:

Current PCT (F)

Reference #

Note #

ANAl.YSIS-OF-RF.CORD 1618 1

Delta PCT Reporting ASSESSMENTS*

(AF)

Reference #

Note #

Year**

AOR + ASSESSMENTS PCT= 1618.0 F

• The licensee should determine the reportability of these assessments pursuant to 10 CFR 50.46.

• The "Reporting Year" refers to the annual reporting year in which this assessment was included.

REFERENCES 1

A-PV-FE-0149, Rev. 001, Palo Verde Units 1,2, and 3 S2M Bounding SBLOCA ECCS Performance Analysis, March 2002.

NOTES:

(a) None Version; PALO 3'ERDE 3 VER3_LOCA-50.46_VER3_Base_Appendii_K_SBLOCA - 1.1 V.V

© 2019 Wcslinghousc Electric Company LLC All Rights Reserved

' This record was final approved on 4/9/2019 4:42:18 PM. (This statement was added by the PRIME system upon its validation)

Attachment to LTR-LIS-19-46, Revision 1 April 9,2019 Page 8 of 14 LOCA Peak Cladding Temperature (PCT) Summary Plant Name; PALO VERDE 1 Utility Name:

Arizona Public Service EM:

1999 EM AOR

Description:

Appendix K Large Break Summary Sheet Status:

Future (NGF)

PCT (°F)

Reference #

Note#

ANALYSIS OF-RECORD 2130 1

None.

ASSESSMENTS*

Delta PCT

(>>AF)

Reference #

Note #

Reporting Year**

AOR + ASSESSMENTS PCT= 2130.0 °F

• The licensee should determine the reportability of these assessments pursuant to 10 CFR 50.46.

• • The Reporting Year" refers to the annual reporting year in which this assessment was included.

REFERENCES 1

CN-TLA-14-016, Revision 2, Palo Verde Units 1, 2 and 3 LBLOCA Bounding ECCS Performance Analysis forNGF Transition," May 2017.

NOTES:

(a) None.

Version: PALO VERDE 1 VERl_LOCA-S0.46_VERl_NGF_Appendix_K_LBLOCA -1.1 V.V

© 2019 Westinghouse Electric Company LLC All Rights Reserved This record was final approved on 4/9/2019 4:42:18 PM. (This statement was added by the PRIME system upon its validation)

Attachment to LTR-LIS-19-46, Revision April 9, 2019 Page 9 of 14 LOCA Peak CTadding Temperature (PCT) Summary Plant Name:

PALO VERDE 2 Utility Name:

Arizona Public Service EM:

1999 EM AOR

Description:

Appendix K. Large Break Summary Sheet Status:

Future (NGF)

PCT (°F)

Reference #

Note#

ANALYSIS-OF R ECORD 2130 1

None.

ASSESSME.\\TS*

Delta PCT

(°AF)

Reference #

Note #

Reporting Year**

AOR + ASSFNSMENTS PCT= 2130.0 °F

• The licensee should determine the reportability of these assessments pursuant to 10 CFR 50.46.

• • The Reporting Year refers to the annual reporting year in which this assessment was included REFERENCES 1 CN-TLA-14-016, Rev ision 2, Palo Verde Units 1, 2 and 3 LBLOCA Bounding ECCS Perfomi ance Analysis forNGF Transition, May 2017.

NOTES:

(a) None.

Version: PALO VERDE 2 VER2_LOCA-50.46_VER2_NGr_Appendis_K_LBLOCA -1.1 V.V

© 2019 Westinghouse Electric Company LLC All Rights Reserved This record was final approved on 4/9/2019 4:42:18 PM. (This statement was added by the PRIME system upon its validation)

Attachment to LTR-LIS-19-46, Revision 1 April 9,2019 Page 10 of 14 LOCA Peak Cladding Temperature (PCX) Suniniar}-

Plant Name:

PALO VERDE 3 Utility Name:

Arizona Public Service EM:

1999 EM AOR Description; Appendix K Large Break Summary Sheet Status:

Future (NGF)

PCT(°F)

Reference #

Note#

ANALV SIS-OK-RECOKD 2130 1

None.

Delta PCT Reporting ASSESSMENTS*

(°AF)

Reference #

Note#

Year**

AOR + ASSESSMENTS PCT = 2130 0 °F

• The licensee should determine the reportability of these assessments pursuant to 10 CFR 50.46.

• • The Reporting Year refers to the annual reporting year in which this assessment was included.

REFERENCES 1

CN-TLA-14-016, Revision 2, Palo Verde Units 1, 2 and 3 LBLOCA Bounding ECCS Performance Analysis for NGF Transition, May 2017.

NOTES:

(a) None.

Version: PALO VERDE 3 VER3_LOC A-50.46_VER3_NGF_Appendix_K_LBLOCA -1.1 V.V

© 2019 Westinghousc Electric Company LLC All Rights Reserved

' This record was final approved on 4/9/2019 4:42:18 PM. (This statement was added by the PRIME system upon its validation)

Attachment to LTR-LIS-19-46, Revision 1 April 9, 2019 Page 11 of 14 LOCA Peak Cladding Temperature (PCX) Summary-Plant Name:

PALO VERDE 1 Utility Name:

Arizona Public Service EM:

S2M AOR

Description:

Appendix K Small Break Summary Sheet Status:

Future (NGF)

PCT(°F)

Reference #

Note#

ANALYSIS OF-RECORD 1586 1

ASSESSMF.NTS*

Delta PCT

(-AF)

Reference #

Note #

Reporting Year**

AOR + ASSESSMENTS PCT= 1586,0 °F

• The licensee should determine the reportability of these assessments pursuant to 10 CFR 50.46.

• • The Reporting Year" refers to the annual reporting year in which this assessment was included.

REFERENCES 1 CN-TLA-14-020, Revision 1, Palo Verde Units 1. 2 and 3 SBLOCA Bounding ECCS Performance Analysis forNGF Transition, January 2016.

NOTES:

(a) None Version: PALO VERDE 1 VERl_LOCA-50.46_VERl_NGF_Appendix_K_SBLOCA - U V.V

© 2019 Wcstinghousc Electric Company LLC All Rights Reserved

' This record was final approved on 4/9/2019 4:42:18 PM. (This statement was added by the PRIME system upon its validation)

Attachment to LTR-LIS-19-46, Revision 1 April 9,2019 Page 12 of 14 LOCA Peak Cladding Teniperafure (PCT) Sumniaiy Plant Name:

PALO VERDE 2 Utility Name:

Arizona Public Service EM:

S2M AOR

Description:

Appendix K Small Break Summary Sheet Status; Future (NGF)

PCT(°F)

Reference #

Note#

ANALYSIS-OF-RECORD 1586 1

ASSESSMENTS*

Delta PCT

(>>AF)

Reference #

Note #

Reporting Year**

AOR + ASSESSME.NTS PCT= 1586.0 °F The licensee should determine the repoitabiUty of these assessments pursuant to 10 CFR 50.46.

• • The Reporting Year refers to the annual repotting year in which this assessment was included.

REFERENCES 1

CN-TLA-14-020, Revision 1, Palo Verde Units 1, 2 and 3 SBLOCA Bounding ECCS Performance Analysis for NGF Transition, Januaiy 2016.

NOTES:

(a) None Version: PALO VERDE 2 VER2_LOCA-50.46_VER2_NGF_Appendix_K_SBLOCA-1.1 V.V

© 2019 Westinghouse Electric Company LLC All Rights Reserved

' This record was final approved on 4/9/2019 4:42:18 PM. (This statement was added by the PRIME system upon its validation)

Attachment to LTR-LIS-19-46, Revision 1 April 9, 2019 Page 13 of 14 LOCA Peak Cladding Temperature (PCT) Sumnian' Plant Name:

PALO VERDE 3 Utility Name:

Arizona Public Service EM:

S2M AOR

Description:

Appendix K Small Break Summary Sheet Status:

Future (NGF)

PCT(°F)

RefereiKe #

Note#

ANALYSIS-OF-RECORD 1586 1

ASSESSMENTS*

Delta PCT

(>>AF)

RefereiKe #

Note#

Reporting Year**

AOR + ASSESS.MENTS PCT= 1586.0 °F

• The licensee should delennine the reportability of these assessments pursuant to 10 CFR 50.46.

• • The Reporting Year refers to the annual reporting year in which this assessment was included.

REFERENCES 1

CN-TLA-14-020. Revision 1. Palo Verde Units 1, 2 and 3 SBLCX2A Bounding ECCS Performance Anafysis forNGF Transition," January 2016.

NOTES:

(a) None Version: PALO VERDE 3 VER3_LOCA-S0.46_VER3_NGF_Appendix_K_SBLOCA - 1.1 V.V

© 2019 Wcdinghousc Electric Company LLC All Rights Reserved This record was final approved on 4/9/2019 4:42:18 PM. (This statement was added by the PRIME system upon its validation)

Attachment to LTR-LIS-19-46, Revision 1 10 CFR 50.46 Reporting SharePoint Site Check:

EMs applicable to PVNGS Units 1,2 and 3:

Appendix K Small Break - S2M Appendix K Large Break - 1999 EM April 9, 2019 Page 14 of 14 2018 Issues Transmittal Letter Issue Description None N/A

' This record was final approved on 4/9/2019 4:42:18 PM. (This statement was added by the PRIME system upon its validation)