ML18143B443
| ML18143B443 | |
| Person / Time | |
|---|---|
| Site: | Surry, North Anna, 05000000 |
| Issue date: | 08/30/1985 |
| From: | Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | Harold Denton, Thompson H Office of Nuclear Reactor Regulation |
| References | |
| 85-063B, 85-63B, GL-83-28, NUDOCS 8509090153 | |
| Download: ML18143B443 (5) | |
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VIRGI1S"IA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 W. L. STEWA.BT VICE PRESIDENT NUCLEAR OPERATIONS August 30, 1985 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation Attn:
Mr. H. L. Thompson, Jr. Director Division of Licensing U.S. Nuclear Regulatory Commission Washington, D. C. 20555 Gentlemen:
VIRGINIA ELECTRIC AND POWER COMPANY SURRY UNITS 1 AND 2 NORTH ANNA UNITS 1 AND 2 SUBMITTAL OF ADDITIONAL INFORMATION FOR GENERIC LETTER 83-28 ITEM 2.2 Serial No.
NO/DWS:acm Docket Nos.
License Nos.
85-063B 50-280 50-281 50-338 50-339 DPR-32 DPR-37 NPF-4 NPF-7 This letter provides the additional information required to complete our responses, dated February 8, 1985 and May 20, 1985, for Item 2. 2 of Generic Letter 83-28. This information provides a completed description of the industry-wide approach to the Vendor Im::erface Program as it relates to the March 1984 NUTAC recommendations.
The NUTAC evaluated the current information exchange media and assessed its contribution to the provision of adequate vendor information. As part of the industry-wide approach to Item 2.2.2 of Generic Letter 83-28, the NUTAC committee developed a Vendor Equipment Technical Information Program (VETIP).
The VETIP program enhances information exchange and communication among utilities and thereby provides a more effective source of general reference information. As a key component of the VETIP, each utility is to have an active program to provide information to the Nuclear Plant, Reliability Data System (NPRDS) and the Significant Event Evaluation and Information Network (SEE-IN).
SEE-IN VEPCO actively participates in the SEE-IN program both at the corporate and station levels.
At the corporate level, the SEE-IN activities are conducted by the Safety Evaluation and Control section of the Nuclear Operations Department.
These activities are the responsibility of one supervisor and five experienced reviewers. The corporate Nuclear Network coordinator is a member of this group and distributes selected activities to the various corporate support groups who are most qualified to evaluate
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e VmoINIA ELEcTRic AND Pow:ER CoMPANY To Mr, Harold R. Denton Vendor Equipment Technical Information (ETI).
Administrative procedures control processing of the SEE-IN material.
Similarly, organizations exist at both North Anna and Surry which review and disseminate SEE-IN material as appropriate. Also each station has its own Nuclear Network coordinator who distributes information to appropriate departments and makes entries pertinent to ETI.
The NUTAC Report, Section 3.2.2, recommended two enhancements to SEE-IN.
The first deals with generating reports of "potential failures caused by faulty or missing vendor-supplied information" or other ETI over the NUCLEAR NETWORK.
The second enhancement addresses improved capability to trend NPRDS data via the SEE-IN program.
In an INPO letter from S. L.
Rosen to W. L. Stewart dated August 30, 1985, the following status was provided for the enhancements respectively.
- "There were over 200 operating experience messages entered into NUCLEAR NETWORK by the utilities in 1984.
Many of these involved early notification to the industry of problems involving component failures, equipment testing and maintenance problems.
Also, INPO accesses the NRC computer in Bethesda each working day to determine plant status information including scrams and. 50. 72 reports, and relays the highlights of this information to the industry via NUCLEAR NETWORK.
These reports, along with the other SEE-IN reports and
- NPRDS, generally keep the utilities up-to-date on current information regarding testing, maintenance and design problems with components, often well in advance of information supplied to utilities by the affected vendors."
- "Upon receipt by INPO, each NPRDS failure report is prescreened by computer. The computer prescreening is based on selected fields that are coded' by the utility, (one of these is failures reported to manufacturer) to indicate the effect of the failure on the system in which it occurred and on the entire plant.
Those failure reports selected by this prescreening are assigned for review according to the plant that originated the report.
In addition to the above screening of individual failure reports, a quarterly screening is performed on all failure reports after they have been sorted according to the components involved.
Each INPO reviewer is assigned a selected set of components and, at the end of each quarter, screens all the failure reports for each type of
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VIRGINIA ELEcTRic AND PoWER CoMPANY To. :Mr. Harold R. Denton NPRDS assigned component.
The purpose of this screening is to identify significant trends in a particular type of component failure.
We are also developing an automated screening program for application to NPRDS component failure identification fields. These include combinations of NPRDS component, engineering, manufacturer, system, application and unit fields.
The NPRDS screening program will be used to identify significant component failure trends.
Significant failure rates identified by the computer screening will be investigated and analyzed further by INFO personnel. Results will be disseminated to the industry by INFO for generic component performance problems and to specific utilities regarding individual plant performance concerns."
VEPCO actively participates in and supports the Nuclear Plant Reliability Data System (NPRDS).
This* is illustr'ated by the* volume of reporting and the dedicated* NPRDS resources-.
We completed an engineering data base in December, 1984, with a total of over 16,000 reports for all four units.
Failure reporting for the first five months in 1985 totaled 312 reports, an average of 15 reports per unit per month.
NPRDS manpower resources include:
North Anna Surry Corporate 4 persons (400 hour0.00463 days <br />0.111 hours <br />6.613757e-4 weeks <br />1.522e-4 months <br />s/mo) 3 persons (300 hour0.00347 days <br />0.0833 hours <br />4.960317e-4 weeks <br />1.1415e-4 months <br />s/mo) 1 person
( 40 hour4.62963e-4 days <br />0.0111 hours <br />6.613757e-5 weeks <br />1.522e-5 months <br />s/mo)
Other resources include at least one on-line data entry retrieval terminal per location; personnel trained by INFO in SEEK data retrieval; and special sorts, supplied by INFO, to aid in data retrieval and data usage.
The VEPCO NPRDS program, in conjunction with the INFO NPRDS program, currently meets the recommendations established by the NUTAC Vendor Equipment Technical Information Program.
Listed below are the INPO/VEPCO responses to each NUTAC comment.
INFO information was taken from standard NPRDS manuals (INFO 84-011 and INFO 83-035) and from the April 3, 1985 INFO letter.
Each recommendation from Section 3.2.1 of the March 1984 NUTAC Report is discussed below:
- 1) The definition of components is being addressed by the NPRDS
e V1RoINIA ELEcTn1c AND PowER Co:wPANY To Mr. Harold R. Denton Users Group Component Boundary Working Group.
Their guidance will appear in Revision 2 of the Reportable Scope Manual.
- 2) Failure report guidance is being addressed in two ways.
First, INPO provides an audit of each incoming failure report, to review the adequacy of narratives for identify-ing inadequate vendor information.
These reviews also address the role of piece parts and provide more complete results of failure analysis.
Second, the Reporting Procedures Manual will be revised to contain guidance on identifying inadequate vendor information.
- 3) Both stations have administrative procedures that describe how we implement the INPO NPRDS program requirements.
Basically, VEPCO explicitly follows the guidance provided by INPO.
Additionally, the INPO audits of the incoming failure reports provides feedback on the accuracy and completeness of our reporting.
- 4) A mechanism for reporting incomplete or partial failure reports currently exists within the INPO NPRDS program.
- 5) INFO has established procedures for expanding to the scope of NPRDS.
In summary, the NPRDS and SEE-IN programs offer an adequate source of industry-wide information and the use of these programs offers an effective method of receiving and reporting vendor supplied equipment problems.
Internal Handling of Vendor Services A topic of the March 1984 NUTAC Report was recommendations related to Quality Assurance/Quality Control aspects of vendor supplied services.
Our station administrative controls assure that applicable documentation and qualification of vendor services receive proper verification prior to use.
Each station's procedures require documentation to accompany the vendor representative or the materials. This documentation is verified by receipt inspection at the time of arrival on site.
This receipt inspection for services and materials compares the supplied documentation with the terms of the procurement documents on the purchase order.
e VrnorNIA ELEcTRic AND PoWER CoMPANY To Mr, Harold R, Denton Controlled services or materials are placed on QC hold until all specified documentation is satisfactory.
At this time, North Anna station procedures require that procurement documentation be reviewed by Engineering and Quality Assurance to verify that the correct level of documentation is specified in the purchase order.
Surry station procedure require procurement documentation be reviewed by Quality Control and selective reviews by Engineering.
Very truly yours, cc:
Dr. J. Nelson Grace Regional Administrator Region II Mr. Steven A. Varga, Chief Operating Reactors Branch No. 1 Division of Licensing Mr. D. J. Burke NRC Resident Inspector Surry Power Station Mr. Edward J. Butcher, Acting Chief Chief Operating Reactors Branch No. 3 Division of Licensing Mr. M. W. Branch NRC Resident Inspector North Anna Power Station