ML20191A270

Inservice Inspection Summary Report -1RE22

ML20191A270
Person / Time
Site:	South Texas
Issue date:	07/09/2020
From:	Georgeson C South Texas
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
NOC-AE-200037 46
Download: ML20191A270 (9)

Text

South Texas Pro/eel Electric Genemling Station P.O. Bo.r 289 W.,dswort/1, Texas 77481 July 9, 2020 NOC-AE-20003746 10 CFR 50.55a STI: 35034026 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 South Texas Project Unit 1 Docket No. STN 50-498 lnservice Inspection Summary Report - 1 RE22 Attached is the South Texas Project Electric Generating Station Unit 1 summary report for inservice inspections performed prior to and during scheduled refueling outage 1 RE22 completed in April 2020. This summary report satisfies the reporting requirements of American Society of Mechanical Engineers ASME Code Section XI, Article IWA-6230.

There are no commitments in this letter.

If there are any questions regarding this report, please contact Ali Albaaj at (361) 972-8949 or me at (361) 972-7806.

a JI ,-'1 Chris Georgeso General Manager, Engineering aa

Enclosure:

Summary Report for the 1 RE22 lnservice Inspection of Unit 1 South Texas Project Electric Generating Station cc:

Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 1600 East 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 1RE22 INSERVICE INSPECTION of UNIT 1 SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION STP NUCLEAR OPERATING COMPANY Spring 2020

COVERSHEET 1RE22 INSERVICE INSPECTION

SUMMARY

REPORT SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION, UNIT 1 P.O. BOX289 WADSWORTH, TEXAS 77483 USNRC DOCKET NO: 50-498 OPERATING LICENSE NO: NPF-78 COMMERCIAL OPERATION DATE: AUGUST 25, 1988 Prepared by:_ .;_;:;_. ___,,

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Eric LaOw e( /

Reviewed by: --r:............,..:....------- Date /C:, 3JA.{.

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SCOPE COMPONENT SUPPORTS, STEAM GENERATOR TUBING, 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 2004 Edition of the ASME Code,Section XI that is applicable to the South Texas Project, Unit 1, third ten-year interval (09/25/2010-09/24/2020), third period (12/20/2017-09/24/2020). 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 XI Code Case N-532-4.

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 for ASME Code Class 2 Systems/Components, IWD-2412 for ASME Code Class 3 Systems/Components, and IWF-241 0 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"! OWNERS ACTIVITY REPORT (Code Case N-532-4)

Report Nunmber OAR-1RE22 Plant_South Texas Project Electric Generating Station Unit No.., I_Commercial service date_ August 25,1988 _Refueling outage no. IRE22 (If applicable)

Current inspection interval IWB, IWO IWD, IWF - 3rd : [WE -3rd (l$l,21ld,3Id,41h other)

Current inspection period IWB. IWC, IWD. IWF " 3rd_;_

(1st, 2"d, 3rd)

Edition and Addenda of Section XI applicable to the inspection plan _2004 Edition Date and revisioft of inspection p}anj3ctober 15, 2019 / Revision 9 Edition and Addenda of Section XI applicable to repajrs/replacement aGtlvlties, if different than the inspection plan N/A Code Cases used: N-532-4. N".578-1, N-729-4. N"770-2, N-722<

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 repalr/replacement activities and evaluations supporting the completion of 1RE22 conform to the requirements of Section XI <

(Refueling outage number)

Signed EEX/C / ^<^C^^^'N'^ _IS1 Program En sineer Date: June 16, 2.020 (Owner or Owner's Designee, Title)

CERTIFICATE OF INSERYICE 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 JHonda__^_ and employed by_ One CIS Insurance Co._ of_Lvnn, MassaclHisetts have inspected the items described m this Owner's Activity Report, and state that, to the best of my knowledge and belief, the Owner has performed all activities represented by tills report in accordance with the requirem^ts 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 Bable in any manner for any personal injury or property damage or a loss of any kind arising from the connected wth this inspectioa Commissions ^ ^ ^ ^ ^ FL ' 1& ~ 00 ^^~

lnspe^g0s Signature National Board, State, Province, and Endorsements Date £>^/^/^>^

TABLE 1 ITEMS WITH FLAWS OR RELEVANT CONDITiONS THAT REQUIRE EVALUATION FOR CONTINUED SERVICE 1RE22 SPRING 2020 ASME Item Item Evaluation Description Category Number Description F-A F1.43 LHX1A: Diesel Lube Oil 3 Inservice Inspection identified a loose bolt on LU Heat Exchanger Support Skid Heat Exohanger Support SkicL

[Summary 423700] [VTC-2020-051]

Corrective Action to tighten bolt.

[CR 20-3928]

Inspection afterCorrective Action.

[VTC-2020-075]

Additional Exams performed in 1 RE22 in accordance with IFW-2220.

Re-examination scheduled for 1 RE23

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TABLE 2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE CORRECTIVE DATE CLASS ITEM DESCRIPTION SYSTEM DESCRIPTION OF WORK REPAIR / REPLACMENT PLAN MEASURE COMPLETED ESSENTIAL 3 REPLACEMENT PIPE COOLING Replaced piping. Welding. 3/7/2019 1-17-030 WATER ESSENTIAL 3 REPLACEMENT PIPE COOLING Replaced piping. Welding, 1/17/2019 1-17-031 WATER MECHANICAL AUXiLJARY 3 REPLACEMENT PIPE Replaced Piping. Welding. 3/7/2019 1-17-036 BUILDING HVAC MECHANICAL AUXILIARY 3 REPLACEMENT PIPE Replaced Piping. Welding. 1/17/2019 1-18-002 BUILDING HVAC SAFETY Replaced valve and piping.

2 REPLACEMENT PIPE & VALVE 7/16/2019 1-18-029 INJECTION Welding, ESSENTIAL Replaced piping and fittJngs.

3 REPLACEMENT PIPE COOLING 3/7/2019 1-19-003 Welding.

WATER ESSENTIAL Removed/! nstaHed pipe support.

3 REPLACEMENT SUPPORT COOLING 3/7/2019 1-19-004 Welding.

WATER ESSENTIAL Replaced piping and fitting.

3 REPLACEMENT PIPE COOLING 3/7/2019 1-19-005 Welding.

WATER ESSENTIAL Removed/! nstaHed support.

3 REPLACEMENT SUPPORT COOLING 3/7/2019 1-19-006 Welding.

WATER ESSENTIAL 3 REPLACEMENT PUMP COOLING Replaced Pump. 2/18/2019 1-19-007 WATER

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TABLE 2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITtES REQUIRED FOR CONTINUED SERVICE CORRECTIVE DATE CLASS ITEM DESCRIPTION SYSTEM DESCRIPTION OF WORK REPAIR / REPLACMENT PiAH MEASURE COtWPLETED ESSENTIAL Replaced NF seismic 3 REPLACEMENT SUPPORT 2/18/2019 1-19-008 COOLING WATER support.

Replaced fiange and ESSENTIAL 3 REPLACEMENT FLANGE returned to WHSE. Weld 2/25/2019 1-19-009 COOLING WATER Cut.

Replaced flange and ESSENTIAL 3 REPLACEMENT FLANGE returned to WHSE. Weld 2/25/2019 1<<19-010 COOLING WATER Cut.

ESSENTIAL 3 REPLACEMENT FASTENER Replaced fasteners. 2/19/2019 1-19-012 COOLING WATER ESSENTIAL 3 REPLACEMENT FASTENER Replaced fasteners. 3/7/2019 1-19-013 COOLING WATER ESSENTIAL Replaced Thermowell and 3 REPLACEMENT THERMOWELL 2/6/2019 1-19-014 COOLING WATER SOL Welding.

REACTOR 1 REPLACEMENT VALVE Removal of valve. 3/29/2020 1-19-017 COOLANT REACTOR 1 REPLACEMENT VALVE Removal of valve. 3/29/2020 1-19-018 CQOLANT REACTOR 1 REPLACEMENT VALVE Removal of valve. 3/29/2020 1-19-019 COOLANT 1 REPLACEMENT VALVE REACTOR Installed rebuilt valve. 4/6/2020 1-19-020 COOLANT REACTOR 1 REPLACEMENT VALVE installed rebuilt valve. 4/6/2020 1-19-021 COOLANT REACTOR 1 REPLACEMENT VALVE installed rebuilt valve. 4/6/2020 1-19-022 COOLANT INCORE Replaced fitting at Thimble 1 REPLACEMENT FITTING 4/5/2020 1-19-023 iNSTRUMENTATION D-12 and C-8.

INCORE Replaced fitting and adapter 1 REPLACEMENT FITTING 4/5/2020 1-19-024 INSTRUMENTATION atThimbleP-4.

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TABLE 2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTiNUED SERVICE CORRECTIVE DATE CLASS ITEM DESCRIPTION SYSTEM DESCRIPTION OF WORK REPAIR / REPLACMENT PLAN MEASURE CONPUETED iNCORE Replaced fitting and 1 REPLACEMENT FITTING 4/5/2020 1-19-025 INSTRUIVIENTATION adapter at Thlmbie B-3.

SAFETY INJECTION REPLACED DISC, 1 REPLACEMENT VALVE 3/28/2020 1-19-033 SI0010B.

REPLACED DISC.

1 REPLACEMENT VALVE SAFETY INJECTION 3/29/2020 1-19-034 SI0010A.

Removed/lnstalied STEAM 1 REPLACEMENT DIAPHRAGM diaphragm on inspection 4/1/2020 1-19-044 GENERATOR ports SG-1 A. Welding.

STEAM Removed/jnstaHed Hatch to 1 REPLACEMENT HATCH GENERATOR MSA.SG-1B.

4/1/2020 1-19-045 COMPONENT 3 REPLACEMENT VALVE Replaced PSV. 9/25/2019 1-19-046 COOUNG DEESEL Replaced DG Intercooter 3 REPLACEMENT PIPE 2/7/2020 1-19-049 GENERATOR Piping.

ESSENTIAL Replaced downstream EW 3 REPLACEMENT FLANGE 11/21/2019 1-19-051 COOLING WATER Range. Welding.

ESSENTIAL 3 REPLACEMENT VALVE Replaced valve. 2/6/2020 1-20-003 COOLING WATER DIESEL 2 REPLACEMENT FASTENER Replaced fasteners. 2/10/2020 1-20-004 GENERATOR 2 REPLACEMENT SNUBBER FEEDWATER Replaced snubber 3/27/2020 1-20-010

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