ML20126L371
| ML20126L371 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 05/28/1981 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| RTR-NUREG-0588, RTR-NUREG-588 NUDOCS 8106020475 | |
| Download: ML20126L371 (2) | |
Text
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TENNESSEE VALLEY AUTHORITY
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CHATTANOOGA TENNESSEE 37401 400 Chestnut Street Tower II hay 28, 1981
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p 0 @j g # b Hr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuolear Regulatory Commission
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Dear Mr. Denton:
4 In the Matter of the Application of
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Docket Nos. 50-327 Tennessee Valley Authority
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50-328 This is in response to R. L. Tedesco's letter to H. G. Parris dated May 20, *981, concerning potential environmental qualification derioiencies for Sequoyah Nuclear Plant identified as a result of the NRC staff's preliminary review of our submittals over the past months. Mr. Todesco's letter required that TVA provide a written statement supporting the safe operation of Sequoyah that takes into account the NRC staff's preliminary list of deficiencies indiosted in Appendix B of the enclosure to the letter. This letter supersedes e letter to you dated May 26, 1981, which ocatained erroneous information.
It appears that Appendi:: D is based on your review of g October 31, 1980, and February 5, 1981, submittals ainee it addresses the equipment lieted in Table 11 of those submittals (Summary of Equipment Qualification Status).
Our October 31, 1980, and February 5, 1981, responses serve as-a reference document. They contain the conditions for qualification and referenos all documentation of equipment status and qualification. This will be amin-tained current, auditable, and available for review. The classification and qualitioation of Class IE electrical equipment is a dynamic process which of neoessity requires revision to the original submittal. Revision 1 to our original response to NUREG-0588 and the Qualifloation Program Plan, prepared under contract by Wyle Laboratories, were transmitted with my February 5, 1981, submittal. This avision is indicative of the evolutionary process.
Ne continue to focus our attention m equipment qualification and its impoet en the safe operation of Sequoyah. We believe that our internal procedures for addressing equipment qualification, ocupled with the tasks being performed under contract by organisations such as Wyle Laboratories, adequately address the potential equipment deficiencies indicated in Appendix B.
Several Licensee Event Reports (LER's) have been submitted on equipment identified as being unqualified under the requirements of NUREG-0588. LER's will be submitted en any equipment so identified in the future.
Based on the above, we believe Sequoyah is in conformance with General Design Criteria 4 of 10 CFR 50 Appendix A, and continued safe operation l
of Sequoyah unit 1 is a6equately ensured.
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. Mr. Harold R. Denton, Director May 28, 1981 TVA has made and will oontinue to make every reasonable effort to comply with the requirements of NUREG-0588. However, several conditions over which TVA has no control may preolude full implementation of these requirements by June 30, 1982. Those conditions are the delay of publication of the NRC Safety Evaluation Report, originally due to be completed by February 1, 1981, and the inability of equipment vendors to provide equipment qualified to the pertinent qualification standards in sufficient quantities to moet domand. Additionally, due to the nuolear industry's competitive demand for qualified equipment, the lead time between actually purchasing the equipment and delivery of the equipment for installation is expected to be significant.
Very truly yours, TENNESSEE VALLEY AUTHORITY l
L. M. Mills, Manager Nuclear Regulation and Safety Sworn to ag subscribed before me thi N day ot h a/ / 1981
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