ML17205A575

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Inservice Inspection Summary Report - 1 RE20
ML17205A575
Person / Time
Site: South Texas 
Issue date: 07/20/2017
From: Wallis K
South Texas
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
NOC-AE-17003503, STI: 34524334
Download: ML17205A575 (10)
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Nuclear Operating Company

_. Ill.-

South Texas Project Electric Ce11erati11g Station P.O Box 289 Wadsworth, Texas 77481 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001 South Texas Project Unit 1 Docket No. STN 50-498 lnservice Inspection Summary Report - 1 RE20 July 20, 2017 NOC-AE-17003503 10 CFR 50.55(a)

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 RE20 completed in April 2017. This summary report satisfies the reporting requirements of ASME Code Section XI, Article IWA-6230.

There are no commitments in this letter.

If there are any questions regarding this report, please contact Wendy Brost at (361) 972-8516 or me at (361) 972-4687.

rµ ' rJ,,JiJ, Kyle M. Wallis Manager, Systems Engineering web

Attachment:

Summary Report for the 1 RE20 lnservice Inspection of Unit 1 South Texas Project Electric Generating Station STI: 34524334

cc:

(paper copy)

Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 1600 East Lamar Boulevard Arlington, TX 76011-4511 Lisa M. Regner Senior Project Manager U.S. Nuclear Regulatory Commission One White Flint North (08H04) 11555 Rockville Pike Rockville, MD 20852 NRC Resident Inspector U. S. Nuclear Regulatory Commission P. 0. Box 289, Mail Code: MN116 Wadsworth, TX 77483 (electronic copy)

NOC-AE-17003503 Page 2 of 2 Morgan. Lewis & Beckius LLP Steve Frantz, Esquire Paul Bessette U.S. Nuclear Regulatory Commission Lisa M. Regner NRG South Texas LP Mark Walker Jim von Suskil Skip Zahn CPS Energy Kevin Pollo Cris Eugster L.D. Blaylock City of Austin Elaina Ball John Wester Texas Dept. of State Health Services Helen Watkins Robert Free

SUMMARY

REPORT For 1RE20 INSERVICE INSPECTION Of UNITl SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION Nuclear Operating Company STP NUCLEAR OPERATING COMPANY 3/18/17 - 4/25/17

COVERSHEET 1 RE20 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-78 COMMERCIAL OPERATION DATE: AUGUST 25, 1988

SCOPE COMPONENT SUPPORTS, REPAIR/REPLACEMENT ACTIVITIES, SYSTEM PRESSURE TESTS, CONTAINMENT METEL LINER LINER, AND WELD INSPECTION PROGRAMS (IWB, IWC, IWD)

The examinations summarized in this report were performed in accordance with the 2004 Edition with no Addenda 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), second period (09/25/2013-09/24/2017). 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-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-532-4)

Report Nunmber ___

O2AR3-4l5RE627 08------------------------------

Plant South Texas Project Electric Generating Station Unit No. ___ ___ Commercial service date August 25, 1988 Refueling outage no.

__ l9RE=2:0"'--------

(If applicable)

Current inspection interval IWB IWC IWD IWF - 3'ct ; "'"IWE;'--,-=2'-" ct:-------------

(1 ", znd, 3'd, 4th, other)

Current inspection period IWB IWC IWD IWF - 2nct ; IWE -2"ct (1 ", 2"d, 3'd)

Edition and Addenda of Section XI applicable to the inspection plan 2004 No Addenda Date and revision ofinspectipn plan Revision 7 Effective date: 10/8/2012, Supplement 1 Effective date: 7/18/2013 Supplement 2 Effective date: 4/2/2014 Edition and Addenda of Section XI applicable to repairs/replacement activities, if different than the inspection plan N/ A Code Cases used: N-460 N-532-4 N-578-1 N-706-1 N-729-1 N-770-1 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 1 RE20 conform to the requirements of Section XI.

(Refuel g outage number)

CERTIFICATE OF INSERVICE INSPECTION Date:

July 20, 2017 I, the undersigned, holding a valid commission issued by the National Board of Boiler and pressure Vessel Inspectors and the State or Province of Texas and employed by ABS Boiler & Marine Insurance Co.

of Houston, Texas 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 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 repairs/

replacements activities and evaluation described this report.

Furthermore, neither the inspector nor his employer shall be liable in any manner for an -Rerson injury orf any kind arising from the connect:d with this inspection.

J ;j/ 4t Commissions

/5( Z<?

Inspector's Signature National Board, Sta&, Province, and Endorsements Date

---

Examination Cateqorv E-A N/A NOTES:

TABLE 1 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRE EVALUATION FOR CONTINUED SERVICE Item Number E1.11 N/A 1RE20 SPRING 2017 Item Description ISi

SUMMARY

NUMBER#900130 CONTAINMENT LINER (90-180 DEG)

<83' TPNS# 1 R111NPZ1101A (PRESSURIZER 1A)

Evaluation Description CR 17-14067 - During 1RE20 In-service Inspections (ISi), an HVAC duct support was found in contact with the containment liner plate.

CR 17-13147 - Identified during 1 RE20 ZE-0033 Inspection WAN 519564. There are dry and discolored deposits around the U 1 Pressurizer manway cover. Manway cover gasket was replaced with a seal welded diaphragm and CS bolts were replaced with CS studs and nuts in 1RE18 WAN 485295.

1. Surveillance procedure OPSP11-RC-0015 Revision 17, ASME Section XI lnservice Inspection, documents lnservice Inspection activities during 1 RE20.

1

Code Class Corrective Measure 3

Replacement 3

Replacement 2

Repair 2

Repair 3

Replacement 3

Replacement 3

Replacement 3

Replacement 3

Replacement 3

Replacement 3

Replacement 3

Replacement 3

Replacement 3

Replacement 3

Replacement 1

Replacement TABLE 2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE 1 RE20 SPRING 2017 Item Description of Work Description Valve Refurbish 4" Valve, Replaced Ball & Seat assembly on CVCS Boric Acid Filter Inlet Valve Bolting Replaced water box bolting 5/8" on Essential chilled Water Chiller Unit 12A Seal Housing Repair spare RHR seal housing, DCP # 14-26359-2 Seal Housing Repair spare RHR seal housing, DCP # 14-26359-2 Piping DCP # 13-11301-6, 1 EWSYSTEM Replacement 30" & 2 Fig/piping/valve, Welding Piping Replaced EW-1305-HL5003, EW1305-HL5004 AND EW-1466-HL5002 PER DCP 13-11301-5 per DCP # 13-11301-5 Support DCP # 13-11301-5, Pipe Support CV1171 HL5009 Removed, Welding Replaced aluminum bronze piping and fittings per DCP # 13-Piping 11301-6, DCN# 1500954, DCN 1500955. EW 30" & 2" Fig/piping.

Valve 30" ECW Pump 1 B Discharge Check Valve Replacement/Swap Valve I Piping DCP # 13-11301-5, Replacement 30" & 2 Fig/piping/valve, Welding Piping Replacement EW 2", 3" & 4" piping, Fae-Welding.

Valve I Piping DCP # 13-11301-5, DCN 1500439., Overlay EW 30" Fig/piping, Welding Piping DCP 13-11301-5, Replace EW 2" piping, FAG-Welding Piping Replaced EW 30 ' piping, ASME CL-3, FAG-Welding Valve I Piping Replace EW 30' & 2 "valve/piping ASME CL-3, DCP 13-11301-9. Welding Seal Replacement of seal package on RCP #1 D.

Date Completed 3/28/2017 1

14 025 9/15/2016 1

14 028 8/8/2016 1

15 054 8/8/2016 1

15 055 9/22/2016 1

15 056 2/18/2016 1

15 058 2/18/2016 1

15 059 3/12/2016 1

15 062 3/8/2016 1

16 003 4/15/2016 1

16 004 3/12/2016 1

16 006 4/14/2016 1

16 007 4/15/2016 1

16 008 6/29/2016 1

16 009 9/22/2016 1

16 010 4/16/2017 1

16 012

Code Corrective Measure Class 1

Replacement 1

Replacement 1

Replacement 3

Replacement 3

Replacement 3

Replacement 3

Replacement 3

Replacement 2

Replacement 2

Replacement 3

Replacement 3

Replacement 3

Replacement 3

Replacement 3

Replacement 2

Replacement 3

Repair 3

Replacement 2

TABLE 2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE 1 RE20 SPRING 2017 Item Description of Work Descriotion Valve Replacement/Swap PZR PSV 6" valve Valve Replacement/Swap PZR PSV 6" valve Valve Replacement/Swap PZR PSV 6" valve Valve Replaced 1 1/2" valve Valve I Bolting Replaced 12" Valve & Bolting DCP # 16-128-34, SPENT FUEL POOL HX 1 B CCW SUPPLY VALVE Valve I Bolting Replaced 12" Valve & Bolting DCP # 16-128-34, SPENT FUEL POOL HX 1 B CCW SUPPLY VALVE Valve Replacement 12" Valve DCP # 16-128-34, SPENT FUEL POOL HX 1A CCW SUPPLY VALVE Valve I Bolting Replaced 12" Valve & Bolting DCP # 16-128-34, SPENT FUEL POOL HX 1A CCW RETURN VALVE Valve Replaced 2" POSITIVE DISPLACEMENT PUMP DISCHARGE CHECK VALVE Pipe Supports Replaced 2" Pipe Supports CV1112HF5005 & HF5006 Piping 1 EWSYSTEM Replaced 30" Piping/Flange overlay. DCP 13-11301-9, Welding Piping 1EWSYSTEM Replace 2" & 3" piping. DCP 13-11301-9, Welding Valve Replacement 6" TRAIN A ESSENTIAL CHILLER 12A OUTLET THROTTLE VALVE Coolers Replacement RCP Motor Air and Oil Coolers ref (REACTOR COOLANT PUMP MOTOR NO 2)

Valve Replacement 30" CW PUMP 1A DISCHARGE CHECK VALVE Valve I Piping Replaced 2" CV POSITIVE DISPLACEMENT PUMP ALT RCP SEAL SUPPLY GATE VALVE Valve Repair/machining 30" ECW PUMP 1A DISCHARGE CHECK VALVE PLATES(Spare)

Valve Replaced ECW RETURN HEADER SLOWDOWN MANUAL ISOLATION 4"Vave DCP # 16-1874-7.

Date Completed Repair/Replacement Plan Number 4/8/2017 1

16 013 4/8/2017 1

16 014 4/8/2017 1

16 015 3/22/2017 1

16 016 3/22/2017 1

16 017 3/22/2017 1

16 018 3/22/2017 1

16 019 3/22/2017 1

16 020 11/8/2016 1

16 021 11 /8/2016 1

16 022 9/13/2016 1

16 024 9/16/2016 1

16 027 9/15/16 1

16 029 4/14/2017 1

16 034 9/15/2016 1

16 036 9/21/2016 1

16 042 9/26/2016 1

16 043 9/14/2016 1

16 044

3 Code Class Corrective Measure 1

Replacement 1

Replacement 1

Replacement 2

Replacement 2

Replacement 1

Repair 2

Replacement 1

Replacement 1

Replacement MC Replacement 2

Replacement TABLE 2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE 1 RE20 SPRING 2017 Item Description of Work Description Piping MSIP Mechanical Stress Improvement Process DCP

  1. 15-16599-5 Support MSIP, shimming SG (all Loops) upper and lower lateral supports.

Support MSIP, modify and/or replace shims for RCP tie rods (all loops).

Valve Plug Replaced plug 8" on SIG 1 C MS OUTLET PORV Valve 3" eves LETDOWN ORIFICE OUTLET HEADER PRESSURE RELIEF VALVE BMI Thimble INCORE INSTRUMENTATION SYSTEM BMI Thimble I Welding Support Replaced Strap on Pipe Support CV1105HL5001 Snubber Replaced Snubber Pipe Support Sl1308HL5001 Diaphragm REPLACED DIAPHRAM ON UNIT 1 PRESSURIZER MANWAY 1R111NPZ101ADIAPHRAGM/Welding Bolting Replaced damaged swing bolt and nut on EQUIPMENT HATCH Valve Replaced Disc on 4" Valve CV0206

  • Repair Replacement Activities 1-14-025 and 1-17-015 were removed from Abstract table April 20, 2017.

Date Completed Repair/Replacement Plan Number 4/12/2017 1

16 045 4/12/2017 1

16 050 4/12/2017 1

16 051 4/2/2017 1

17 003 3/30/2017 1

17 005 4/12/2017 1

17 006 3/30/2017 1

17 007 3/24/2017 1

17 008 4/13/2017 1

17 011 4/6/2017 1

17 013 4/9/2017 1

17 015

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