ML22033A544

Inservice Inspection Summary Report -1RE23

ML22033A544
Person / Time
Site:	South Texas
Issue date:	02/02/2022
From:	Georgeson C South Texas
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
NOC-AE-22003866, STI:35275753 RE23
Download: ML22033A544 (8)

Text

Nuclear Operating Company South Te.\as Pro/ecl Electric Cencratlnf Station P.O. Box 289 Wadstt'orlh. Te.\as 77-fSJ February 2, 2022 NOC-AE-22003866 10CFR50.55a STI:35275753 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 South Texas Project Unit 1 Docket No. STN 50-498 Inservice Inspection Summary Report-1RE23 Attached is the South Texas Project Electric Generating Station Unit 1 summary report for inservice inspections performed prior to and during scheduled refueling outage 1RE23 completed in November 2021. This summary report satisfies the reporting requirements of American Society of Mechanical Engineers ASME Code Section Xl, Article IWA-6230.

There are no commitments in this letter.

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If there are any questions regarding this report, please contact Zachary Dibbern at 361-972-4336 or me at 361-972-7806.

C. H. Georgesifn General Manager, Engineering

Enclosure:

Summary Report for the 1RE23 Inservice Inspection of Unit 1 South Texas Project Electric Generating Station ec:

Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 1600 E. Lamar Boulevard Arlington, TX 76011-4511 Chief Inspector Texas Department of Licensing and Regulation Boiler Program P.O. Box 12157 Austin, TX 78711

SUMMARY

REPORT for the 1RE23 INSERVICE INSPECTION of UNIT 1 SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION STP NUCLEAR OPERATING COMPANY Fall 2021

COVER SHEET 1RE23 INSERVICE INSPECTION

SUMMARY

REPORT SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION, UNIT 1 P.O. BOX 289 WADSWORTH, TEXAS 77483 USNRC DOCKET NO: 50-498 OPERATING LICENSE NO: NPF-76 COMMERCIAL OPERATION DATE: AUGUST 25, 1988 r^l Prepared by: \AWA^-}^\^ ' _ Date l-Z~7~2o'Z2-James Williams, ISI Program Owner Reviewed by :Q^^^V DateJ^^^_U Coleton Teplicek, SupEsrvYsor, /Testing Programs (NOCNOC 22035889)

SCOPE COMPONENT SUPPORTS, WELDS, THERMAL FATIGUE, REPAIR/REPLACEMENT, AND SYSTEM PRESSSURE TESTING INSPECTION PROGRAMS (IWB, IWC, IWD, IWE, IWF)

The examinations summarized in this report were performed in accordance with the 2013 Edition of the ASME Code, Section Xl that is applicable to the South Texas Project, Unit 1, fourth ten-year interval (09/25/2020-09/08/2029), first period (09/25/2020-09/24/2023).

This report covers selected ASME Code Class 1, 2, and 3 Systems/Components. This report is documented in accordance with the requirements of ASME Section Xl Code Case N-532-5.

Examinations and tests required by the Code are scheduled in accordance with "Inspection Program B" as defined in IWB-2412 for ASME Code Class 1 Systems/Components, IWC-2412 forASME Code Class 2 Systems/Components, IWD-2412 forASME Code Class 3 Systems/Components, and IWF-2410 component supports.

ASME Code Class 1 components were examined as prescribed by Table IWB-2500-1 and the applicable Examination Categories, which established the examination frequency at each refueling outage. The ASME Code Class 2 Systems/Components were examined in accordance with Table IWC-2500-1, Examination Categories. The ASME Code Class 3 Systems/Components were examined in accordance with Table IWD-2500-1, Examination Categories. Component Supports were examined in accordance with IWF-Table 2500-1, Examination Categories.

FORM OAR-1 OWNER'S ACTIVITY REPORT (Code Case N-532-5)

Report Nunmber OAR-1 RE23_

Plant_ South Texas Project Electric Generating Station Unit No._1_Commercial service date_August 25, 1988 _Refueling outage no. 1RE23 (If applicable)

Current inspection interval IWB. IWC, IWD. IWF - 4tl)_; IWE -4th (li',2"d,3rd,4"l,other)

Current inspection period IWB. IWC, IWD. IWF -Is1; (la, 2nd, 3rd)

Edition of Section XI applicable to the inspection plan_2013 Edition Date and revision of inspection plan September 25.2020 / Revision 10 Edition and Addenda of Section XI applicable to repairs/replacement activities, if different than the inspection plan N/A Code Cases used: N-532-5. N-593-2. N-716-1, N-729-6, N-770-5, N-722- 1 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 1RE23 conform to the requirements of Section XI.

(Refuel^g outage number)

Signed \?W^ ^ V_AJ-^'~>- _IS1 Program Engineer Date: January 13, 2022

>wner or Owner's Designee, Title)

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and pressure Vessel Inspectors and the State or Province of f\ond&____ and employed by^One CIS Insurance Co._ _ of_Lynn, Massachusetts_ have inspected the items described in this Owner's Activity Report, and state that, to the best of my knowledge and belief, the Owner has performed at] 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 repairs/

replacements activities and evaluation described 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 the connected with this inspection.

^-^*£L Commissions ^G> f- *^ *Z ^ ^ /

Inspector's'Signature

's' (National Board Number and Endorsements)

Date c>1 / l-j/-Z-e>^-Z-

TABLE 1 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRE EVALUATION FOR CONTINUED SERVICE 1RE23 FALL 2021 ASME Item Item Evaluation Description Category Number Description E-A E1-32 LEAK CHASE CHANNEL CR 21-10813 ISI inspection summary No. 1-CISI-SYSTEM 930000 of the Containment Leak Chase Channel System identified standing water present inside test area junction boxes 2, 4, 6, 36 and 88. Leak chase test locations located at RCB (-)11' in the Odeg-90deg quadrant.

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.IP.f'U TABLE 2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES Nuclear Operating Company Nuclear Operating Company REQUIRED FOR CONTINUED SERVICE DATE CLASS CORRECTION MEASURE ITEM DESCRIPTION SYSTEWI DESCRIPTION OF WORK REPAIR / REPLACEMENT PLAN COMPLETED 3 REPLACEMENT VALVE ESSENTIAL COOLING WATER REPLACED VALVE. 10/21/2021 1-14-026 3 REPLACEMENT VALVE FC REPLACED BONET STUDS. 11/1/2021 1-16-039 3 REPLACEMENT PIPE ESSENTIAL COOLING WATER REPLACED PIPE SPOOL. 12/8/2021 1-17-027 ECW SCREEN WASH PUMP 1A 3 REPLACEMENT ESSENTIAL COOLING WATER REPLACED PLUG. 10/21/2021 1-17-040 DISCHARGE VALVE 3 REPLACEMENT VALVE ESSENTIAL COOLING WATER REPLACED VALVE. 10/21/2021 1-18-008 3 REPLACEMENT VALVE ec REPLACED DISC. 11/9/2021 1-19-047 REPLACED THERMOWELL AND 3 REPLACEMENT THERMOWELL ESSENTIAL COOLING WATER 10/21/2021 1-20-015 SOL.

1 REPLACEMENT VALVE RESIDUAL HEAT REMOVAL REPLACED VALVE. 11/9/2021 1-20-016 3 REPLACEMENT VALVE COMPONENT COOLING REPLACED CAPSCREW. 11/1/2021 1-20-017

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Nuclear Operating Company

'I I TABLE 2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE wir Nuclear Operating Company DATE CLASS CORRECTION MEASURE ITEM DESCRIPTION SYSTEM DESCRIPTION OF WORK REPAIR / REPLACEMENT PLAN COMPLETED 3 REPAIR PIPE & FLANGE ESSENTIAL COOLING WATER REMOVED PIPE FROM FLANGE. 11/1/2021 1-20-019 3 REPLACEMENT VALVE ESSENTIAL COOLING WATER REPLACED VALVE. 10/21/2021 1-20-020 REPLACED PLUG AND BONNET 2 REPLACEMENT VALVE MAIN STEAM 12/8/2021 1-20-024 STUDS.

3 REPLACEMENT PUMP ESSENTIAL COOLING WATER REPLACED PUMP. 11/1/2021 1-21-012 REPLACED MOTOR AIR COOLERS 2 REPLACEMENT MOTOR REACTOR COOLANT 11/10/2021 1-21-017 AND BEARING OIL COOLER.

1 REPLACEMENT VALVE REACTOR COOLANT REPLACED VALVE. 11/9/2021 1-21-018 1 REPAIR VALVE REACTOR COOLANT REMOVED VALVE. 11/1/2021 1-21-019 2 REPLACEMENT VALVE MAIN STEAM REPLACED PLUG. 11/9/2021 1-21-021 REMOVED SNUBBER and PIPE 3 REPAIR SNUBBER & PIPE STRUT FEEDWATER STRUT.

11/1/2021 1-21-024 3 REPAIR SPRING CAN FEEDWATER ADJUST SPRING CAN. 11/1/2021 1-21-026

TABLE 2 "n

Wi ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES uir Nuclear Operating Company Nuclear Operating Company REQUIRED FOR CONTINUED SERVICE DATE CLASS CORRECTION MEASURE ITEM DESCRIPTION SYSTEM DESCRIPTION OF WORK REPAIR / REPLACEMENT PLAN COMPLETED 3 REPLACEMENT VALVE COMPONENT COOLING REPLACED VALVE. 11/1/2021 1-21-028 2 REPLACEMENT HEAT EXCHANGER COMPONENT COOLING REPLACED FASTENERS. 10/21/2021 1-21-033 2 REPLACEMENT VALVE FEEDWATER REPLACED VALVE STEM. 11/9/2021 1-21-036 2 REPLACEMENT SNUBBER FEEDWATER REPLACED SNUBBER. 11/1/2021 1-21-037