ML20138B135
| ML20138B135 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 10/04/1985 |
| From: | Domer J TENNESSEE VALLEY AUTHORITY |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| CON-#485-309 OL, TAC-61274, TAC-61275, TAC-61276, NUDOCS 8510150106 | |
| Download: ML20138B135 (3) | |
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- TENNESSEE VALLEY AUTHORITY f.
CH ATTANOOGA, TENNESSEE 37401 400 Chestnut Street Tower II I
October 4, 1985 i
Mr. Harold R. Denton, Director j
Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Comunission Washington, D.C.
20555 4
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Dear Mr. Denton:
j In the Matter of the
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Docket Mos. 50-327
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Tennessee Valley Authority
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50-328 As discussed with members of your staff in a telephone conference call on-j October 2, 1985, the following status of TVA's environmental qualification (EQ) program review is being provided.
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Based upon our current rate of progress, approximately 45 of 56 of Sequoyah l
Nuclear plant's (SQN) EQ documentation packages will be complete by i
November 4, 1985.
Eighteen of the 42 cable packages will also be complete.
All documentation review. includle-tsat for cables, is now expected to be complete by the end of November 1945.
As discussed in the telephone conversation on October 2, we have identified a number of outstanding technical issues related to EQ.- Some of these issues
.will not be fully dispositioned before November 4,1985.-
These open issues are identified in the enclosure along with their current schedule for completion and potential impact to EQ package development. There issues and other. issues affecting the full EQ documentation status of EQ pa,ckages will be resolved before restart of the SQN units.
1 In the September 27, 1985 letter from H. G. parris to you, we requested an
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j-extension to the schedule,for final environmental qualification of' electrical I
~ cables in accordance with the. requirements of 10 CFR 50.49.
The extension for operation beyond November 30, 1985 is being requested for both units until April 1, 1986. - This date is based upon-a worst-case ~ situation. If we identify additional cable inside contairunent that should have been included in our. current test program, but-was not, it would then require until April 1, 1986, to complete the newly identified test requirements.
If this proves to be the case, we would, of course, revise'our.tustification for continued Operation to include this' newly'identifled,cabid our cable f1 eld verification efforts are scheduled te % complete by October 16, 1985.
In summary, our SQW EQ program nill'have progressed to the point that you will be able to fully: assess our efforts toward full compliance with'the..
requirements of 10 CFR 50.49 b3' November 4,1985. Accordingly, we request you plan a review of the SQN EQ program during the week beginning November 4, 1985.
1 8510150g g'DIous
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. An Equal Opportunity Employer
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Mr. Harold R. Denton, Director October 4, 1985 We would like to schedule an additional telephone conference call with members of your staff during the week of October 16, 1935, for the purpose of updating.
the' status of our EQ documentation effort and confirming our readiness for your review.
If you have any questions _please get in touch with R. E. Alsup at FTS 858-2725.
Very truly yours, TENNESSEE VALLEY AUTHORITY b
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- 4. Domer, Chief Nuclear Licensing Branch sworn gpnd subscri ed before me this' M day of /l-/!/--
1985 0/l c
s Notary Public pp
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My Commission Expires
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Enclosure cc (Enclosure):
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
ENCLOSURE SEQUOYAH NUCLEAR PLANT UNITS 1 AND 2 REQUEST FOR EXTENSION TO SCHEDULE REQUIREMENTS ENVIRONMENTAL QUALIFICATION OF ELECTRICAL EQUIPMENT Technical Issue Schedule Completion Potential Impact 1.
Completion of location -
November 13, 1985 Affects 9 packages specific accident radiation (Motors, solenoids, dose calculations MOVs, handswitches, various instruments) 2.
Completion of documentation November 15, 1985 Could add some review for documentation of components to non-safety-related components 10CFR50.49 harsh which should be considered in environment list EQ. program per 10CFR50.49(b)(2) 3.
Evaluation of "as-built" status November 25, 1985 Unknown, no of plant against EQ significant impact documentation based upon "as-is expected designed" plant configuration 4.
Complete test of all currently November 22, 1985 Affects 24 of 42 identified cable requiring cable EQ packages testing 4
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