ML23188A187

Fourth 10-Year Interval, Second Period Owner’S Activity Report Number 2R24

ML23188A187
Person / Time
Site:	Palo Verde
Issue date:	07/07/2023
From:	Cox M Arizona Public Service Co
To:	Office of Nuclear Reactor Regulation, Document Control Desk
References
102-08640-MSC/CJS
Download: ML23188A187 (1)

Text

10 CFR 50.55a

Palo Verde Nuclear Generating Station P.O. Box 52034 Phoenix, AZ 85072 102-08640-MSC/CJS Mail Station 7636 July 7, 2023 Tel: (623) 393-5753

ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

Subject:

Palo Verde Nuclear Generating Station Unit 2 Docket No. STN 50-529 Fourth 10-Year Interval, Second Period Owners Activity Report Number 2R24

Pursuant to Title 10 of the Code of Federal Regulations 50.55a and in accordance with the American Society of Mechanical Engineers Boiler and Pressure Vessel Code Case N-532-5, Repair/Replacement Activity Documentation Requirements and Inservice Inspection Summary Report Preparation and Submission Section XI, Division 1, Arizona Public Service Company hereby submits the Owners Activity Report (Form OAR-1) for Unit 2 refueling outage 24 (2R24). The outage ended on May 13, 2023.

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

Sincerely, Cox, Matthew Digitally signed by Cox, Matthew S(Z05628)

S(Z05628) Date: 2023.07.07 15:01:05

-07'00'

Matthew S. Cox Department Leader, Nuclear Regulatory Affairs

MSC/CJS/cr

Enclosure:

Unit 2 Twenty-Fourth Refueling Outage Owners Activity Report, Report 2R24

cc: R. J. Lewis Acting NRC Region IV Regional Administrator S. P. Lingam NRC NRR Project Manager for PVNGS L. N. Merker NRC Senior Resident Inspector for PVNGS

A member of the STARS Alliance LLC Callaway Diablo Canyon Palo Verde Wolf Creek ENCLOSURE

Unit 2

Twenty-Fourth Refueling Outage Owners Activity Report

Report 2R24 FORM OAR-1 OWNERS ACTIVITY REPORT

Report Number: ________________________________________________________________________________________________ 2R24

Plant: ___________________________________________________________________________________________________________ Palo Verde Nuclear Generating Station, 5801 S. Wintersburg Road, Tonopah, Arizona 85354-7529

Unit No.: ___________ Commercial service date: ___________________ Refueling Outage No.: ___________________ 2 Sep 19, 1986 24 (if applicable)

Current inspection interval ______________________________________________________________________________________ IWB, IWC, IWD, IWF = 4th / IWE = 3rd / IWL = 3rd / S.P.T. = 4th t, 2nd, 3rd, 4th, other)

(1s Current inspection period _______________________________________________________________________________________ IWB, IWC, IWD, IWF = 2nd / IWE = 2nd / IWL = 1st / S.P.T. = 2nd

t, 2nd, 3rd)

(1s Edition and Addenda of Section XI applicable to the inspection plans ____________________________________________ 2013 Edition (IWE = 2007 Ed., '08 Ad.)

Date and revision of inspection plans ___________________________________________________________________________ ISI=9/16/21 R1, SPT=6/21/18 R0, IWE=10/3/18 R0, IWL=6/17/22 R0

Edition and Addenda of Section XI applicable to repair/replacement activities, if different than the inspection plans ____________________________________________________________________________ 2013 Edition

Code Cases used for inspection and evaluation:

_____________________________________________________________________________________________ N-532-5, N-716-1, N-722-1, N-729-6, N-770-5 (if applicable)

CERTIFICATE OF CONFORMANCE

I certify that (a) the statements made in this report are correct; (b) the examinations and tests meet the Inspection Plan as required by the ASME Code,Section XI; and (c) the repair/replacement activities and evaluations supporting the completion of

_______________ conform to the requirements of Section XI. U2R24 (refueling outage number)

Folley, Roy Digitally signed by Folley, Roy C(Z07131)

Date: 2023.07.05 16:07:15 Signed _________________________________________________________ Date: _____________________________________ C(Z07131)-07'00' Jul 5, 2023

CERTIFICATE OF INSERVICE INSPECTION

I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and employed by _____________________________ of _______________________________ have inspected the items described in

• Hartford, Connecticut this Owners Activity Report, and state that, to the best of my knowledge and belief, the Owner has performed all activities represented by this report in accordance with the requirements of Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the repair/replacement activities and evaluation described in this report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Hogstrom, Digitally signed by Hogstrom,

• The Hartford Steam Boiler Inspection and Insurance Co.

Robert (YH2450)

Robert (YH2450) Date: 2023.07.05 16:18:32

__________________________________________ Commissions ____________________________________________________ -07'00' N.B. 9685 "C, I, N, R"

(Inspectors Signature) National Board, State, Province, and Endorsements

Date: _____________________________________ Jul 5, 2023

PV-E0796 Ver. 2 Table 1 Items with Flaws or Relevant Conditions That Required Evaluation for Continued Service

Examination Category and Item Description Evaluation Description Item Number None None None

Table 2 Abstract of 2R24 Repair/Replacement Activities Required for Continued Service

Code Component ID Description of Work Date Repair/Replacement Class Complete Plan Number PRESSURIZER SAFETY RELIEF VALVE 1 2JRCEPSV0200 Replace the pressurizer safety relief 5/09/2023 5405377-0 valve with a reconditioned spare PRESSURIZER SAFETY RELIEF VALVE 1 2JRCEPSV0201 Replace the pressurizer safety relief 5/09/2023 5405378-0 valve with a reconditioned spare PRESSURIZER SAFETY RELIEF VALVE 1 2JRCEPSV0202 Replace the pressurizer safety relief 5/09/2023 5405379-0 valve with a reconditioned spare PRESSURIZER SAFETY RELIEF VALVE.

1 2JRCEPSV0203 Replace the pressurizer safety relief 5/09/2023 5405380-0 valve with a reconditioned spare REPLACEMENT STEAM GENERATOR 1 2MRCEE01B 5/09/2023 5405371-0 Replace retainer plate due to wear.

REPLACEMENT STEAM GENERATOR 1 2MRCEE01A Install Westinghouse mechanical tube 4/28/2023 5419140-0 plugs in steam generator 2MRCEE01A "HOT" leg REPLACEMENT STEAM GENERATOR 1 2MRCEE01A Install Westinghouse mechanical tube 4/28/2023 5419141-0 plugs in steam generator 2MRCEE01A "COLD" leg.

REPLACEMENT STEAM GENERATOR 1 2MRCEE01B Install Westinghouse mechanical tube 4/28/2023 5419142-0 plugs in steam generator 2MRCEE01A "HOT" leg REPLACEMENT STEAM GENERATOR 1 2MRCEE01B Install Westinghouse mechanical tube 4/28/2023 5419143-0 plugs in steam generator 2MRCEE01A "COLD" leg B HPSI INJ TO LOOP 2 CHECK VALVE 1 2PSIBV532 Weld replace valve with substitute Borg 5/09/2023 5245515-0 Warner model 77700.

PRESSURIZER VENT VALVE TO RDT 1 2JRCBHV108 Remove and weld replace SOV RC-108 5/04/2023 5405454-0 valve body S/G #2 BLOWDOWN CTNMT ISOL VALVE 2 2JSGBUV500R Weld repair the 1/8" fillet weld pin hole 3/05/2022 5413979-0 leak between valve bonnet and packing leak off port plug.

1 Table 2 Abstract of 2R24 Repair/Replacement Activities Required for Continued Service

Code Component ID Description of Work Date Repair/Replacement Class Complete Plan Number SIB-P02 TO RWT RESTRAINT 2 2SI112H00F 5/05/2023 5532107-0 Replace broken U-Bolt ESP PP SPAP01 TO DG CLG WTR HT EXCH 3 2PSPAL080 DGA-E01 4/24/2023 4884332-11 Weld repair spool # 10 per Engineering weld map.

SUPORT 00A ON LINE SI199 SPOOL N00J 3 2SI199H00A Replace nut of U-bolt Item 5 of 13-SI-5/08/2023 4884350-0 199-H-00A per EDC 2023-00223 TURBOCHARGER COOLING OUTEXP 3 2MDGBY18 JOINT 3/25/2022 5303385-10 Perform base metal repairs of expansion joint TURBO COOLING SUPPLY EXPJOINT 3 2MDGBY019 Perform Base Metal Repairs of expansion 3/25/2022 5303386-10 joint TURBO COOLING OUTLET EXPJOINT 3 2MDGBY024 Perform Base Metal Repairs of expansion 3/25/2022 5303386-10 joint SP PUMP SPB P01 TO DG CLG WTR HT 3 2PSPBL032 EXCH DGB-E01 SPOOL 014 3/25/2022 5303426-5 Perform base metal repair to pipe spool SP PUMP SPB P01 TO DG CLG WTR HT 3 2PSPBL032 EXCH DGB-E01 SPOOL 015 3/25/2022 5303426-5 Perform base metal repair to pipe spool DG CLG WTR HT EXCH DGB-E01TO TRAIN 3 2PSPBL049 B SPRAY POND SPOOL 001 3/25/2022 5303426-5 Base metal repair to pipe spool ESS SPRAY POND P SPB-P01TO LUBE OIL 3 2PSPBL104 CLR DGBE04 SPOOL 003 3/25/2022 5303426-5 Perform base metal repair to pipe spool LUBE OIL CLR DGB-E04 TO SPRAY POND 3 2PSPB106 TRAIN B SPOOL 001 3/25/2022 5303426-5 Perform base metal repair to pipe spool LUBE OIL CLR DGBE04 TO SPRAY POND 3 2PSPB106 TRAIN B SPOOL 004 3/25/2022 5303426-5 Base metal repair to pipe spool

EDG LUBE OIL COOLER 3 2MDGBE04 3/25/2022 5303431-0 Weld repair of corroded areas

2 Table 2 Abstract of 2R24 Repair/Replacement Activities Required for Continued Service

Code Component ID Description of Work Date Repair/Replacement Class Complete Plan Number EDG JACKET WATER COOLER 3 2MDGBE05 3/25/2022 5303431-0 Weld repair of corroded areas EDG INTERCOOLER CROSS CONNECT 3 2MDGBE01A/B SPOOLS (5, 6, 7, and 8) 3/25/2022 5303431-0 Weld repair of corroded areas

EDG INTERCOOLER A 3 2MDGBE01A 3/25/2022 5303431-0 Weld repair of corroded areas

EDG INTERCOOLER B 3 2MDGBE01B 3/25/2022 5303431-0 Weld repair of corroded areas

ECWS HTEXCH A 3 2MEWAE01 Perform base material repairs to the 4/25/2023 5405244-1 heat exchanger

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