ML20100G570

Forwards Corrected Info to Encls 1 & 2 & Table 1 of Util Re Environ Qualification of Equipment Per 10CFR50.49

ML20100G570
Person / Time
Site:	Sequoyah
Issue date:	04/01/1985
From:	Domer J TENNESSEE VALLEY AUTHORITY
To:	Harold Denton Office of Nuclear Reactor Regulation
References
NUDOCS 8504080300
Download: ML20100G570 (4)

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TENNESSEE VALLEY AUTHORITY CHATTANOOGA. TENNESSEE 37401 1630 Chestnut Street Tower II April 1, 1985 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Dear Mr. Denton:

In the Matter of ) Docket Nos. 50-327 Tennessee Valley Authority ) 50-328 In our March 27, 1985 letter to you there was one item of clarification each needed in enclosure 1, enclosure 2, and table 1. Those pages and the table have been corrected and are enclosed for your information. We apologize for any inconvenience.

If you have any questions concerning this matter, please get in touch with R. E. Alaup at FTS 858-2725.

Very truly yours, TENNESSEE ALLEY AUTHORITY

}J.A.Domer.e.

Nuclear Engineer Sworn Jo and subscr bed h fore me this / day of 1985

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Notary Public g My Commission Expires 7 Enclosures cc (Enclosures):

U.S. Nuclear Regulatory Commission Region II Attn: Dr. J. Nelson Grace, Regional Administrator 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 l Mr. Carl Stahle i U.S. Nuclear Regulatory Commission Sequoyah Project Manager 7920 Norfolk Avenue Bethesda, Maryland 20814 g-p 11 8504080300 850401 PDR ADOCK 05000327 P PDR An' Equal Opportunity Employer

ENCLOSURE 1 CURRENT STATUS

SUMMARY

OF SEQUOYAH NUCLEAR PLANT i UNITS 1 AND 2 WITH REGARDING TO 10 CFR 50.49 The current status summary of Sequoyah unita 1 and 2 with regard to 10 CFR'50.49 is provided in table 1.

Sequoyah unit 1 As provided in enclosure 2, Sequoyah unit 1 during its second refueling outage (February 20, 1984 through April 17, 1984) lacked 166 replacement components due to procurement / delivery-related and installation-related problems. TVA has currently been averaging replacing two to three non-outage components per week on Sequoyah unit 1. If possible, TVA will continue to work non-outage components during power operation. In addition, TVA is currently

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scheduling an approximately 16-day ice weighing outage on Sequoyah unit 1 during the later part of April. TVA currently plans to replace approximately 50 percent of the remaining Category IV components during the outage. TVA has committed to be in compliance with 10 CFR 50.49 by startup following the unit 1 cycle 3 refueling outage which is currently scheduled for September 1985, but in no event later than November 30, 1985.

Sequoyah unit 2 Since our November 7 and 21, 1984 letters to NRC, we have reduced the number of Category IV components by one item. TVA plans to replace this component at the earliest. practical time, but in no event later than November 30, 1985.

TVA believes Sequoyah has acted in good faith in reducing the number of Category III and IV components for both units and will continue to qualify these items as soon as possible. (Based on our understanding of the environmental equipment qualification required by 10 CFR 50.49, Sequoyah will be in full compliance with those requirements no later than November 30, 1985 for both units.)

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q ENCLOSURE 2 (CONTINUED) f 2 Letter to NRC dated November 7,1984 19 Included in November 21, 1984 letter 2 Letter to NRC dated. November 21, 1984 19 a. (8) components testing

, b. (10) components with procurement

. related problems.

c. (1) component replaced 2 Letter to NRC dated November 30, 1984 Approval granted for TVA's letters dated November 7 and 21, 1984

'Approximately 27 out of the additional 100 components have completed qualification testing or have been replaced / relocated.

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TABLE 1 STATUS

SUMMARY

OF SEQUOYAH UNITS 1 AND 2 WITH REGARD TO 10 CFR 50.49 Category II Category IV Compliance - - -

Components Components Percentage Unit 1 88 a' 150 > 90 Unit 2 85 1 >99 Notes: 1. The Category ,III components identified as'those requiring additional testing

2. The Category IV components are identified as those requiring replacement / relocations

• TVA has just received the test reports which qualify the 16 components in question.

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