ML23044A619
| ML23044A619 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 02/13/2023 |
| From: | Georgeson C South Texas |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| References | |
| NOC-AE-23003937 | |
| Download: ML23044A619 (1) | |
Text
February 13, 2023 NOC-AE-23003937 10 CFR 50.55a STI: 35423738 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 South Texas Project Unit 2 Docket No. STN 50-499 Inservice Inspection Summary Report - 2RE22 Attached is the South Texas Project Electric Generating Station Unit 2 summary report for inservice inspections performed prior to and during scheduled refueling outage 2RE22 completed in November 2022. 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 Zachary Dibbern at 361-972-4336 or me at 361-972-7806.
C. H. Georgeson General Manager, Engineering
Enclosure:
Summary Report for the 2RE22 Inservice Inspection of Unit 2 South Texas Project Electric Generating Station C. H. Georgeson Digitally signed by C. H.
Georgeson Date: 2023.02.13 16:46:23 -06'00'
NOC-AE-23003937 Page 2 of 2 cc:
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 Dennis Galvin Project Manager U.S. Nuclear Regulatory Commission Office of Nuclear Reactor Regulation Division of Operating Reactor Licensing Licensing Project Branch 4 Gregory Kolcum Senior Resident Inspector, South Texas Project U.S. Nuclear Regulatory Commission Chad Stott Resident Inspector, South Texas Project U.S. Nuclear Regulatory Commission
SUMMARY
REPORT for the 2RE22 INSERVICE INSPECTION of UNIT 2 SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION STP NUCLEAR OPERATING COMPANY Fall 2022
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 XI that is applicable to the South Texas Project, Unit 2 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 XI 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 for ASME Code Class 2 Systems/Components, IWD-2412 for ASME 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.
1 TABLE 1 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRE EVALUATION FOR CONTINUED SERVICE 2RE22 FALL 2022 ASME Category Item Number Item Description Evaluation Description E-A E1.30 CC-LINER-MB-1 CONTAINMENT LINER PLATE (240-360 DEG)
During Inservice visual Inspection of Containment liner at the RCB -11Summary #: 2CISI-901000, ISI Drawing Number: CISI-2000-03. Linear indication of approximately 59 in length identified at the moisture barrier location, and approximately 335 to 340 tearing was found in the coating/grouting moisture barrier boundary. CR# 22-10588
TABLE 2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE 1
Class CORRECIVE MEASURE ITEM DESCRIPTION System DESCRIPTION OF WORK Date Completed REPAIR/REPLACEMENT PLAN 1
REPAIR VALVE RESIDUAL HEAT REMOVAL REMOVED WELD.
12/7/2022 2-17-032 3
REPLACEMENT FLANGE ESSENTIAL COOLING WATER REPLACED FLANGE AND WELD-O-LET.
12/14/2022 2-20-033 3
REPLACEMENT FLANGE ESSENTIAL COOLING WATER REPLACED FLANGE AND WELD-O-LET.
12/14/2022 2-20-034 3
REPLACEMENT THERMOWELL ESSENTIAL COOLING WATER REPLACED THERMOWELL AND SOL 12/13/2022 2-21-004 2
REPLACEMENT VALVE COMPONENT COOLING REPLACED VALVE.
12/14/2022 2-21-008 3
REPLACEMENT VALVE ESSENTIAL COOLING WATER REPLACED PLUGS.
12/13/2022 2-21-009 3
REPLACEMENT FLANGE ESSENTIAL COOLING WATER REPLACED FLANGE 12/14/2022 2-21-012 3
REPLACEMENT FLANGE ESSENTIAL COOLING WATER REPLACED FLANGE 12/14/2022 2-21-013 3
REPLACEMENT VALVE ESSENTIAL COOLING WATER REPLACED PLATES.
12/13/2022 2-21-016 2
REPLACEMENT VALVE COMPONENT COOLING REPLACED PIN RETAINERS.
12/13/2022 2-21-019 3
REPAIR FLANGE AND PIPE ESSENTIAL COOLING WATER REPAIRED FLANGE AND PIPE.
12/14/2022 2-21-025
TABLE 2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE 2
Class CORRECIVE MEASURE ITEM DESCRIPTION System DESCRIPTION OF WORK Date Completed REPAIR/REPLACEMENT PLAN 3
REPAIR FLANGE AND PIPE ESSENTIAL COOLING WATER REPAIRED FLANGE AND PIPE.
12/14/2022 2-21-026 3
REPLACEMENT VALVE ESSENTIAL COOLING WATER REPLACED PLUGS AND STUDS.
12/6/2022 2-21-029 1
REPAIR VALVE REACTOR COOLANT REMOVED VALVE.
12/7/2022 2-21-030 1
REPLACEMENT VALVE REACTOR COOLANT INSTALLED VALVE.
12/8/2022 2-21-031 2
REPLACEMENT VALVE CHEMICAL VOLUME CONTROL REPLACED DISC.
12/7/2022 2-21-034 2
REPLACEMENT VALVE RESIDUAL HEAT REMOVAL REPLACED VALVE.
12/14/2022 2-22-002 3
REPLACEMENT PUMP ESSENTIAL COOLING WATER REPLACED PUMP AND BOLTING.
12/14/2022 2-22-008 2
REPAIR STEAM GENERATOR STEAM GENERATOR REMOVED/REINSTALLED HATCH.
12/7/2022 2-22-017 2
REPAIR STEAM GENERATOR STEAM GENERATOR REMOVED/REINSTALLED HATCH.
12/14/2022 2-22-018 2
REPAIR STEAM GENERATOR STEAM GENERATOR REMOVED/REINSTALLED DIAPRAGMS.
12/14/2022 2-22-019 4
REPLACEMENT VALVE REACTOR COOLANT REPLACED PLUG, SEAT, CAGE, AND SOLENOID.
1/10/2023 2-22-023
TABLE 2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE 3
Class CORRECIVE MEASURE ITEM DESCRIPTION System DESCRIPTION OF WORK Date Completed REPAIR/REPLACEMENT PLAN 1
REPLACEMENT PUMP REACTOR COOLANT REPLACED CARTRIDGE SEAL PACKAGE AND SEAL.
12/6/2022 2-22-024 1
REPAIR VALVE REACTOR COOLANT REMOVED/REINSTALLED VALVE.
12/13/2022 2-22-025 1
REPAIR VALVE REACTOR COOLANT REMOVED/REINSTALLED VALVE.
12/13/2022 2-22-026 1
REPLACEMENT PIPE REACTOR COOLANT REPLACED PIPE.
12/7/2022 2-22-027 3
REPLACEMENT EXPANSION JOINT ESSENTIAL COOLING WATER REPLACED EXPANSION JOINT.
12/8/2022 2-22-028 3
REPLACEMENT MOTOR REACTOR COOLANT REPLACED BEARING OIL COOLER AND MOTOR AIR COOLERS.
1/10/2023 2-22-030 3
REPLACEMENT STRAINER ESSENTIAL COOLING WATER REPLACED FASTENERS.
12/8/2022 2-22-031 3
REPLACEMENT PIPE ESSENTIAL COOLING WATER REPLACED PIPE.
12/14/2022 2-22-032 1
REPLACEMENT TEMPERATURE ELEMENT REACTOR COOLANT REPLACED THERMOWELL.
1/10/2023 2-22-034 2
REPLACEMENT SNUBBER STEAM GENERATOR BLOWDOWN REPLACED SNUBBER 12/8/2022 2-22-037 2
REPLACEMENT VALVE INSTRUMENT AIR REPLACED STUDS.
12/7/2022 2-22-039
TABLE 2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE 4
Class CORRECIVE MEASURE ITEM DESCRIPTION System DESCRIPTION OF WORK Date Completed REPAIR/REPLACEMENT PLAN 1
REPLACEMENT SNUBBER REACTOR COOLANT REPLACED SNUBBER.
12/8/2022 2-22-040 2
REPLACEMENT STEAM GENERATOR STEAM GENERATOR REPLACED FASTENERS.
12/7/2022 2-22-041 2
REPLACEMENT SNUBBER FEEDWATER REPLACED SNUBBER 12/13/2022 2-22-042 2
REPAIR VALVE CONTAINMENT BUILDING &
MSIV CUBICLE REMOVED/REINSTALLED WELD.
12/6/2022 2-22-044