ML20137B532

Discusses Completion of 10CFR50.44 Requirements Re Final Hydrogen Rule.Four Addl Igniters Installed in Upper Containment & Addl Testing of Igniters Completed Per .Requirements Satisfied

ML20137B532
Person / Time
Site:	Sequoyah
Issue date:	05/14/1985
From:	Hufham J TENNESSEE VALLEY AUTHORITY
To:	Adensam E Office of Nuclear Reactor Regulation
References
NUDOCS 8508220057
Download: ML20137B532 (2)

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TENNESSEE VALLEY AUTHORITY CH ATTANOOGA. TENNESSEE J7401 1630 Chestnut Street Tower II May 14, 1985 Director of Nuclear Reactor Regulation Attention: Ms. E. Adensas, Chief Licensing Branch No. 4 Divisicn of Licensing U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Dear Ms. Adensas:

.y In the Matter of ) Docket Nos. 50-327 Tennessee Valley Authority ) 50-328 As stated in the December 29, 1982 letter from you to H. G. Parris (Amendment No. 24 to Operating License DPR-79), NRC approved the Permanent Hydrogen Mitigation System (PHMS) for unit 1 of our Sequoyah Nuclear Plant "as adequate with the conditions that four additional

' ignitors be installed in the upper containment and that additional tests be performed to demonstrate that the igniters initiate combustion under spray conditions." The same PHMS is in use on unit 2 at Sequoyah and was subsequently approved as documented in the September 29, 1983 letter from you to.H. G. Parris (Amendment No. 21 to Operating License DPR-77).

The four additional igniters have been installed in the upper containment in both units 1 and 2 at Sequoyah. As stated in the November 2, 1984 letter from L. M. Mills to you, TVA has completed the additional testing of the Tayco igniters and have demonstrated that the ignitors are acceptable for use in the PHMS. To date, we have received no response from NRC. However, as stated in the Federal Register' Notice of Rulemaking, Sequoyah is referenced as a plant to be used as a basis for

' comparison for "a staff (NRC) determination that a plant is safe to operate at full power." From these statements, we have concluded that NRC agrees with our position and course of action. We, therefore, consider the requirements of the final hydrogen rule included in 10 CFR 50.44 that was published in the Federal Register'on January 25, 1985, and that apply to our Sequoyah Nuclear Plant to be satisfied, and that no additional actions or responses are necessary.

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P 1 k0 N An Equal Opportunity Employer

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. 4 Director of Nuclear Reactor Regulation May 14, 1985 If we do not receive a response to this letter within 30 days, we will assume that you concur with our position and course of action.

If you have any questions concerning this matter, please get-in touch with Jerry Wills at FTS 858-2683 Very truly yours, TENNESSEE VALLEY AUTHORITY f

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J. . Hu rpm, ,anager Li insingpndyegulations Sworn t y d subscri d before me V this / 8 day of / /zZv/- 1985 1

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Notary Public f. f/

My Commission Expires "uv cc: U.S. Nuclear Regulatory Commission Region II Attn: Dr. J. Nelson Grace, Regional Administrator 101 Marietta Street, NW, Suite 2900 Atlanta,' Georgia 30323 Mr. Carl Stahle Sequoyah Project Manager U.S. Nuclear Regulatory Commission 7920 Norfolk Avenue Bethesda, Maryland 20814