ML20315A397

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Notification of NRC Supplemental Inspection (95001) and Request for Information - RA
ML20315A397
Person / Time
Site: Surry Dominion icon.png
Issue date: 11/10/2020
From: Stewart Bailey
NRC/RGN-II/DRP/RPB4
To: Stoddard D
Virginia Electric & Power Co (VEPCO)
References
Download: ML20315A397 (6)
v • d • e


Text

November 10, 2020 Mr. Daniel G. Stoddard Senior Vice President and Chief Nuclear Officer Virginia Electric and Power Company Innsbrook Technical Center 5000 Dominion Boulevard Glen Allen, VA 23060

SUBJECT:

SURRY POWER STATION - NOTIFICATION OF NRC SUPPLEMENTAL INSPECTION (95001) AND REQUEST FOR INFORMATION

Dear Mr. Stoddard:

By letter dated July 30, 2020 (ADAMS ML20212L517), the U.S. Nuclear Regulatory Commission (NRC) communicated to you the final significance determination of a finding having low-to-moderate safety significance (White) at Surry Power Station, Unit 2. The finding was associated with a failure to meet American Society of Mechanical Engineers (ASME) Code for Operation and Maintenance (OM) of Nuclear Power Plants, 2004 Edition, inservice test (IST) requirements for the Unit 2 turbine driven auxiliary feedwater (TDAFW) pump discharge check valve. Specifically, known failure and maintenance patterns of the Unit 2 TDAFW pump discharge check valve 2-FW-142 were not analyzed to determine their significance and to identify potential failure mechanisms of the valve. Consequently, the valve experienced excessive wear and failed during a surveillance test. This rendered all three trains of the auxiliary feedwater system inoperable and resulted in the inability of the system to perform its safety function.

By letter dated October 8, 2020, we were notified by your staff of Dominion Energys readiness for the NRC to conduct a supplemental inspection to review the actions taken to address the White finding. Accordingly, we plan to conduct a supplemental inspection, beginning on November 16, 2020, at Surry Power Station, Unit 2 using Inspection Procedure 95001, Supplemental Inspection for One or Two White Inputs in a Strategic Performance Area. This on-site inspection is scheduled to be performed November 16, through November 20, 2020.

D. Stoddard 2 In order to minimize the impact to your on-site resources and to ensure a productive inspection for both organizations, we have enclosed a request for documents needed for this inspection.

The documents identified are those the inspectors will need prior to and upon their arrival on site. It is important that all of the documents are up-to-date and complete in order to minimize the number of additional documents requested during the on-site portion of the inspection. To the extent possible, please organize the information as specified in the RFI. Experience has shown that poorly organized files can lead to a less efficient inspection and places additional burden on licensee staff. Secure file server access such as Certrec or SharePoint is preferred.

During the inspection, the inspectors may request additional documents. If there are questions regarding the documents or material requested, or if the documents cannot be provided by the due date, please do not hesitate to contact the lead inspector at (404) 997-5284. We have discussed the schedule for these inspection activities with your staff and understand that our regulatory contact for this inspection will be Mr. Stephen Newman of your organization.

In accordance with Title 10 of the Code of Federal Regulations 2.390, Public Inspections, Exemptions, Requests for Withholding, of the NRC's "Rules of Practice," a copy of this letter, its enclosure, and your response (if any) will be available electronically for public inspection in the NRCs Public Document Room or from the Publicly Available Records System (PARS) component of the NRC's Agencywide Documents Access and Management System (ADAMS).

ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).

Sincerely,

/RA/

Stewart Bailey, Chief Branch 4 Division of Reactor Projects Docket No. 50-281 License No. DPR-37

Enclosure:

Supplemental Inspection Document Request cc w/encl: Distribution via LISTSERV

D. Stoddard 3

SUBJECT:

SURRY POWER STATION - NOTIFICATION OF NRC SUPPLEMENTAL INSPECTION (95001) AND REQUEST FOR INFORMATION DATED: November 10, 2020 DISTRIBUTION:

RidsNrrPMSurry Resource RidsNrrDRO Resource Public ADAMS Accession No. ML20315A397 OFFICE RII: DRP RII: DRP NAME K. Carrington S. Bailey DATE 11/10/2020 11/10/2020

SUPPLEMENTAL INSPECTION DOCUMENT REQUEST Inspection Report: 05000281/2020040 Inspection Dates: November 16-20, 2020 Inspection Procedure: IP 95001 Please assemble the following documents and upload to your secure file server immediately and no later than November 9, 2020. For any electronic documents, I kindly ask that you make the documents text or word searchable. Hard copies of the documents are requested to be on site and available for the inspectors to review on and by the first date of inspection. The information assembled should be current as of the date of your compilation, unless specified otherwise. Information provided on site should be the latest approved documentation and/or revision, unless specified otherwise. For the requested procedures, please provide a tabular list of the procedures that have changed or been updated in the last two years. Proprietary information should be clearly marked and listed as such. Draft documentation should not be provided as part of this information request. It is also requested that internet and printer access be provided for the inspectors during the inspection. As a part of the document request, I ask that you include a summary of contents page to describe the contents of each document/folder for ease of inspection. If there are any duplicate requests in the list below, please do not hesitate to reach out to the team lead, Ms. Kenya Carrington.

Information Requested Prior to Inspection:

Administrative Procedures:

1. Administrative procedure(s) governing the sites corrective action program.
2. Administrative procedure(s) governing the identification and resolution of problems.
3. Administrative procedure(s) governing work control, work screening, and work planning.
4. Administrative procedure(s) governing equipment or system performance trending, including system health reports (departmental or engineering trend).
5. Administrative procedure(s) governing preventative maintenance.
6. Administrative procedure(s) governing implementation of the stations Inservice testing (IST) condition monitoring program.
7. Administrative procedure(s) governing inservice testing program and implementation of the ASME code of record.
8. Administrative procedure(s) governing maintenance on and installation of check valves and other components within scope of the IST program.

Corrective Action Documents / Root Cause Reports/ Extent of Conditions:

1. The root cause evaluation report(s) and associated documents for the subject White finding and NOV;
2. Any internal and/or external assessments of the root cause evaluation(s) and any follow-up assessment(s) that occurred because of the root cause evaluation(s), including departmental assessments, corporate assessments, and mock 95001 assessments conducted at the plant to assess readiness for the inspection.
3. Schedule and status of any ongoing, planned or completed effectiveness reviews stemming from the root cause evaluation for the White finding and NOV
4. Schedule and status of any ongoing, planned or completed effectiveness reviews stemming from the root cause evaluation(s) for the TDAFW pump discharge check valve failure and associated NOV and finding, if not already included
5. A copy of all corrective action documents and/or condition reports that resulted from the root cause evaluation(s).
6. A copy of all corrective action documents and/or condition reports that resulted from any assessments of the root cause evaluation(s).
7. A copy of all corrective action documents and/or condition reports that resulted from any assessments performed in preparation for the 95001 inspection.
8. A copy of any Quality Assurance or Nuclear Oversight assessments of the root cause evaluation(s) for the TDAFW pump check valve failure and the subject finding and NOV.
9. A copy of all corrective action documents and/or condition reports associated with the TDAFW check valve failure (subject of the white finding and NOV). Include a list with title and brief description of each, organized by date.
10. A copy of all corrective action documents and/or condition reports related to the White finding and NOV, if not already included.
11. Documentation supporting completion of any corrective actions for the TDAFW pump check valve failure, maintenance (include complete work packages, copies of references and procedures used, if not already provided)
12. Current schedule and resource commitment documents for open corrective actions associated with the TDAFW pump check valve failure.
13. Current schedule and resource commitment documents for open corrective actions to address the subject NOV and finding, if not already included.
14. A list of all extent of condition evaluations and/or extent of cause evaluations conducted for the TDAFW pump check valve failure and the subject NOV, including those associated with the maintenance performed on the check valve for the last 10 years; the list should be sorted by date and contain the condition report number, the title, and a short summary of the conclusion.
15. (Initially include last 5 years) corrective action documents and reports, and resolution of any performance issues associated with other check valves being addressed under ASME OM Code, Appendix II, at Surry Units 1 and 2.

Work Requests, Evaluations, Preventive Maintenance (PM) Strategies, Performance History

1. Procurement documents and certificate of conformance for TDAFW pump discharge check valve, 2-FW-142, prior to and following failure (subject of finding and NOV)
2. (from the last two IST intervals) A copy of the work order history and associated work orders related to the for 2-FW-142 (subject of the finding).
3. A copy of Licensee Event Reports and referenced documents associated with 2-FW-142 failure and subsequent inoperability of the auxiliary feedwater system.
4. Training requests and completion records, if not already included, for IST condition monitoring program (last 2 years).
5. List of engineering evaluations associated with IST condition monitoring program, if not already included (last 10 years).
6. The PM strategy/ template for 2-FW-142.
7. List of all PMs or prescheduled work orders that are performed for 2-FW-142.
8. A failure analysis of 2-FW-142 valve, if not already included (subject of NOV).
9. A copy and list of all work requests (open and closed), work orders (open and closed),

related to the subject root cause evaluation(s) (including 2-FW-142 failure and associated NOV and finding).

10. Corrective maintenance work orders associated with 2-FW-142 (from last two IST intervals). Provide full WO, if not already included.
11. List of engineering changes performed as a result of TDAFW valve failure or NOV and finding, if not already included.
12. List of Nonconformance reports associated with 2-FW-142 (last 5 years), if not included

(Work Requests, Evaluations, Preventive Maintenance (PM) Strategies, Performance History

13. A copy of the preventative maintenance (PM) template and PM strategy for the Unit 2 TDAFW pump discharge check valve, 2-FW-142. Include opposite unit if PM strategy is not the same.
14. Associated System Health Report for 2-FW-142 and TDAFW system (last 5 years)
15. List of permanent modifications performed on 2-FW-142 (as far back as electronic records indicate)- provide EC number and title or brief description
16. Last 5 years of completed periodic verification / diagnostic tests of 2-FW-142 (Provide full WO packages)
17. Last 2 years of IST tests or last 6 completed IST tests for 2-FW-142 (whichever is greater) to satisfy requirements of ASME OM Code, including any data sheets that recorded the collected test results (if easier, provide full WO).

Miscellaneous

1. Pictures of valve, 2-FW-142, if available.
2. Surry Units 1 and 2 NPP condition monitoring program plan for check valves in accordance with ASME OM Code, Appendix II, Check Valve Condition Monitoring Program, with a list of the valves in the program, their function, valve groupings, dates of when valves were added/deleted and the reason for their inclusion/deletion, analysis forming the basis for the program, condition monitoring activities including trended attributes and the bases for the associated monitoring interval for each valve or valve group, and any identified failure or maintenance history patterns.

In addition to providing electronic copies, please also assemble and have available onsite for the inspector a hard copy of the following documents:

  • Current and Previous IST Program Plan for the applicable ASME OM Code edition and addenda at Surry Units 1 and 2;
  • Technical Specifications;
  • Administrative Procedures;
  • Site Organization Charts;
  • Design Basis Document for TDAFW system;
  • Vendor Manual(s) covering installation, maintenance, and operation of TDAFW Check Valve 2-FW-142;
  • EQ file, including EQ test reports, for associated valve 2-FW-142, if valve is located in Procurement and design specifications and associated Certificate of Conformance for valve 2-FW-142 a Harsh Environment area; and
  • Any previously provided documents that have been updated or revised.
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