IR 05000498/2022011

Design Basis Assurance Inspection (Programs) Inspection Report 05000498/2022011 and 05000499/2022011

ML22053A306
Person / Time
Site:	South Texas
Issue date:	03/01/2022
From:	Vincent Gaddy NRC Region 4
To:	Gerry Powell South Texas
References
IR 2022011
Download: ML22053A306 (10)

Text

March 01, 2022

SUBJECT:

SOUTH TEXAS PROJECT - DESIGN BASIS ASSURANCE INSPECTION (PROGRAMS) INSPECTION REPORT 05000498/2022011 AND 05000499/2022011

Dear Mr. Powell:

On February 10, 2022, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at South Texas Project and discussed the results of this inspection with Ms. K.

Harshaw, Executive Vice President and CNO and other members of your staff. The results of this inspection are documented in the enclosed report.

No findings or violations of more than minor significance were identified during this inspection.

This letter, its enclosure, and your response (if any) will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document Room in accordance with Title 10 of the Code of Federal Regulations 2.390, Public Inspections, Exemptions, Requests for Withholding.

Sincerely, Vincent G. Digitally signed by Vincent G. Gaddy Gaddy Date: 2022.03.01 13:23:44 -06'00'

Vincent G. Gaddy, Chief Engineering Branch 1 Division of Reactor Safety Docket Nos. 05000498 and 05000499 License Nos. NPF-76 and NPF-80

Enclosure:

As stated

Inspection Report

Docket Numbers: 05000498 and 05000499 License Numbers: NPF-76 and NPF-80 Report Numbers: 05000498/2022011 and 05000499/2022011 Enterprise Identifier: I-2022-011-0007 Licensee: STP Nuclear Operating Company Facility: South Texas Project Location: Wadsworth, TX Inspection Dates: January 24, 2022 to February 10, 2022 Inspectors: J. Braisted, Reactor Inspector D. Reinert, Reactor Inspector W. Sifre, Senior Reactor Inspector Approved By: Vincent G. Gaddy, Chief Engineering Branch 1 Division of Reactor Safety Enclosure

SUMMARY

The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting a design basis assurance inspection (programs) inspection at South Texas Project, in accordance with the Reactor Oversight Process. The Reactor Oversight Process is the NRCs program for overseeing the safe operation of commercial nuclear power reactors. Refer to https://www.nrc.gov/reactors/operating/oversight.html for more information.

List of Findings and Violations

No findings or violations of more than minor significance were identified.

Additional Tracking Items

None.

INSPECTION SCOPES

Inspections were conducted using the appropriate portions of the inspection procedures (IPs) in effect at the beginning of the inspection unless otherwise noted. Currently approved IPs with their attached revision histories are located on the public website at http://www.nrc.gov/reading-rm/doc-collections/insp-manual/inspection-procedure/index.html. Samples were declared complete when the IP requirements most appropriate to the inspection activity were met consistent with Inspection Manual Chapter (IMC) 2515, Light-Water Reactor Inspection Program - Operations Phase. The inspectors reviewed selected procedures and records, observed activities, and interviewed personnel to assess licensee performance and compliance with Commission rules and regulations, license conditions, site procedures, and standards.

REACTOR SAFETY

71111.21N.02 - Design-Basis Capability of Power-Operated Valves Under 10 CFR 50.55a Requirements POV Review (IP Section 03)

The inspectors:

a. Determined whether the sampled POVs are being tested and maintained in accordance with NRC regulations along with the licensees commitments and/or licensing bases.

b. Determined whether the sampled POVs are capable of performing their design-basis functions.

c. Determined whether testing of the sampled POVs is adequate to demonstrate the capability of the POVs to perform their safety functions under design-basis conditions.

d. Evaluate maintenance activities including a walkdown of the sampled POVs (if accessible).

(1) Unit 1 Safety Injection Accumulator 1C Outlet Motor-Operated Valve 2N121XSI0039C

(2) Unit 1 Main Steam to Terry Turbine Throttle Motor-Operated Valve 3S141XMS0514

(3) Unit 2 Steam Generator 2D Blowdown Outside Reactor Containment Isolation Air-Operated Valve A2SBFV4150

(4) Unit 1 Steam Generator 1A Main Steam Outlet Hydraulically Operated Power Operated Relief Valve A1MSPV7411

(5) Unit 2 Essential Cooling Water Pump 2C Discharge Motor-Operated Valve

==3R28 2TEW0151

(6) Unit 2 Steam Generator 2A Main Steam Outside Reactor Containment Air-Operated ==

Isolation Valve A2MSFSV7414

(7) Unit 1 RHR Pump 1C Suction Motor-Operated Valve 1R161XRH0061C

(8) Unit 1 Reactor Containment Building Supplementary Purge Supply Isolation Air-Operated Valve A1HCFV9776

(9) Unit 2 Safety Injection Pump 2B Discharge Motor-Operated Valve 2N122XSI0018B

(10) Unit 2 Pressurizer Solenoid-Operated Power-Operated Relief Valve A2RCPCV0655A

INSPECTION RESULTS

No findings were identified.

EXIT MEETINGS AND DEBRIEFS

The inspectors verified no proprietary information was retained or documented in this report.

• On February 10, 2022, the inspectors presented the design basis assurance inspection (programs) inspection results to Ms. K. Harshaw, Executive Vice President and CNO and other members of the licensee staff.

DOCUMENTS REVIEWED

Inspection Type Designation Description or Title Revision or

Procedure Date

71111.21N.02 Calculations 2195C KVAP Results Tag No. A1HCFV9776 18" Valtek Butterfly 1

E-4344_8344_2 Qualified Life for Paul Munroe Actuators & Components 1

MC-6441 Pressure Locking / Thermal Binding Evaluation 4

MC-6462 DVAC Calculation for DC Motor MOVs 0

MC-6472 DVAC Calculation AC Motor MOVs 3

ST400088- MOV Evaluation GNL 89-10 for 12GM88SEB C

00011WN

ST401865- Evaluation of South Texas Project MOVs using the EPRI A

00001M2 MOV Methodology

STI-94-009561-15 GL 89-10 Program Design Basis Review 2BSIMOV0018B 04/08/1994

Corrective Action Condition Record 19-6236, 06-16339, 21-7397, 09-9344, 14-5571, 20-3576,

Documents (CR) 21-10795, 03-6411, 07-6159, 20-8152, 13-13856, 13-

1770, 16-12727, 17-11550, 19-11601, 19-12655, 19-

2716, 20-8220, 21-8767, 19-12777, 21-1946, 21-2058,

18-6358

Station Problem 93-0603

Report (SPR)

Corrective Action Condition Record 22-894,22-889, 22-897, 19-291-235, 22-1237, 22-1258,

Documents (CR) 22-1289, 12-27343, 16-13993, 22-1234

Resulting from

Inspection

Drawings 00009E0S1144#1 ACCUMULATOR DISCHARGE ISOLATION MOV'S 21

0039A, 0039B & 0039C

5S201740203 STEAM GENERATOR BLOWDOWN CONTAINMENT 8

ISOLATION VALVES LOGIC DIAGRAM

A-34752-5 BODY SUBASSEMBLY MARK I, 4 INCH, CLASS 900, 2

CV 172, SCH 120 B/W

A-34752-75 ACTUATOR SUBASSEMBLY 200 SQUARE INCH W/ 2

DUAL SPRINGS

Engineering 07-11727-4 Unit 2 Main Steam Isolation Valves (MSIVs) Stem to Pilot 03/19/2009

Changes Poppet Valve Replacement

17-91-2 Main Steam Isolation Valve Drawing 0223-01(2)00015WN 05/02/2017

Inspection Type Designation Description or Title Revision or

Procedure Date

Update to Show Regulator & Filter Arrangement

18-12169-2 Alternate Material Replacement for Steam Generator 10/21/2018

Main Steam Power Operated Relief Valve Bonnet

19-217-10 Replacement Part for Pressure Reducing Regulator 09/03/2019

DCP 03-12393-10 Update QMDB for Pressurizer PORV Gaskets to reflect 12/20/2005

Qualified Life

DCP 06-16339-72 Update MEDP and Minimum Required Thrust for 10/11/2012

RH0060, 0061 MOVs

DCP 07-11515-3 MOV B2SIMOV0018B Maximum Expected Differential 03/14/2011

Pressure (MEDP), Valve Weak Link, and Minimum

Required Thrust.

EC-16-14959-17 Allowance for 3/8" Nominal Wall Thickness Pipe for Spool 0

EW-2301-B

MD-2655 GNL 89-10 MOV EVAL 10/19/1992

Engineering CREE 19-10712- STP Appendix J Program Type C Local Leak Rate 10/03/2019

Evaluations 2 Testing (LLRT) Scope for a Reduction

MC-6441 Pressure Locking / Thermal Binding Evaluation 4

ST400088-00053- Motor Operated Valve (MOV) Evaluation 89-10 0

AWN

Miscellaneous Air Operated Valve Component Health Report 09/20/2021

AOV Datasheet for A1HCFV9776 01/24/2022

2V149VB00114 Design Basis Document RCB HVAC System 4

5N129MB01045 Design Basis Document Safety Injection System 6

5R149MD01027 Design Basis Document Reactor Coolant System 9

5R169MB1021 Design Basis Document Residual Heat Removal System 5

PRA Rev 9 to Expert Panel Meeting 12/16/21 Attachment 3 0

PRA Rev 10 Risk

Change Summary

PRA-22-003 TS 4.0.3 Risk Evaluation - Missed Surveillance for 0

Pressurizer Power Operated Relief Valve Close Stroke

Time Test

ST-W2-NOC-99- RSG Cold Overpressure Mitigation System Setpoints 06/29/1999

0037

SwRI Project No. Evaluation of Thermal Embrittlement of 17-4 PH MSIVs November

Inspection Type Designation Description or Title Revision or

Procedure Date

18.24454 2019

VTD-L200-0009 SMB Instruction and Maintenance Manual 5

VTD-V037-0001 INSTALLATION, OPERATION, MAINTENANCE 8

INSTRUCTIONS FOR MARK ONE AND TWO CONTROL

VALVES

VTD-W120-0652 Motor Operated Gate Valves, Manually Operated Gate 3

Valves, Swing Check Valves Instruction Book

Procedures 0PEP06-ZE-0001 MOV Diagnostic Testing Error Analysis and Acceptance 14

Criteria

0PEP07-ZE-0010 LLRT Type B and Type C Failure/Troublshooting 1

0PGP03-ZE-0037 Motor Operated Valve Program 9

0PGP03-ZE-0074 Air Operated Valve Program 6

0PGP03-ZM-0002 Preventive Maintenance Program 41

0PMP05-ZE-0417 MOV Performance and Degradation Trending 3

0POP01-ZO-0011 Operability, Functionality, and Reportability Guidance 16

0POP03-ZG-0001 Plant Heatup 81

0PSP03-HC-0003 Reactor Containment Building Supplementary Purge 12

System Valve Operability Test

0PSP03-MS-0001 Main Steam System Valve Operability Test 52

0PSP03-RC-0010 Pressurizer Power Operated Relief Valve Operability Test 16

0PSP03-RH-0010 RHR System Valve Leak Tests 10

ENG-0006 Component Health Reports 5

WCG-0005 Preventive Maintenance Administration Guide 9

Self- 21-8612-1 2021 Power Operated Valve (POV) Design Basis 11/16/2021

Assessments Assurance Inspection (DBAI) Self-Assessment

Work Orders Preventive 01000776, 03001202, 04000249,

Maintenance -

Work orders

Work 557588, 440177, 588903, 522670, 382379, 533069,

Authorization 604821, 469133, 382379, 655533, 575278, 586167,

Number (WAN) 591420, 351427, 409328, 519907, 483049, 503614,

630986, 480263, 661027, 525909, 561613, 598596,

23701, 560477, 508975, 425931, 353014, 436093,

544976, 636949, 416247, 599598, 478331, 597819,

Inspection Type Designation Description or Title Revision or

Procedure Date

586025, 607534, 639631, 580591, 100435, 615020,

587625, 609823, 534622, 597819

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