ML20236D496
| ML20236D496 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 07/27/1987 |
| From: | Gridley R TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| NUDOCS 8707300486 | |
| Download: ML20236D496 (4) | |
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TENNESSEE VALLEYi AUTHORITY.
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LJUL 271987 7
5 lU.S.lNuclese Re'gulatcry Commission-s ATTN:'LDocument Control Desk iWashington,LD.C. -20555 Gentlemen:
JIn the. Matter of
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Docket Nos. 50-327' t
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Tennessee Valley Authority;
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~50-328',
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- SEQUOYAH NUCLEAR PLANT - TECHNICAL SPECIFICATION CHANGE 87-02
References:
' 1'.
LTVA letter.to NRC dated April 14,.1987,."Sequoyah Nuclear Plant'(SQN) - Technical Specification Change 87,
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' Functional-Testing of. Radiation Monitors in Steam-ILi!-
~ Generator: Blowdown and Condensate Domineralizer Lines"
.2.
TVAlettertoNRC~ dated' July 8,'1987 This,information regarding' technical specification 'hange 87-02 is'provided:in c
accordance with'.a request f rom Sang Kim durine, a July 13, 1987Ltelephone; conference call. _provides.information on operator. action'and procedural; changes'that will...ensu're operator action in response:to a dc,wnscale failure of'.the steam generator blowdown rLdiation monitor.
contains the commitments identified in enclosure 1.
If:you have any questions, please telephone M.=R.
Harding at (615):870-6422.
Very truly yours,
- TENNESSEE VALLEY AUTHORITY R. G idley, rector Nuclear Safe y and Licensing Enclosures 3..
cc: see page 2 8707300486 a7072f7
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PDR ADDCK 05000327 P
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An Equal Opportunity Empioyer
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i p U.S. Nuclear Regulatory Commission
.JUL 271987 i
seciEnclosures):
Mr. G.: G. Zech. Assistant' Director (for Inspection Programs office.of Special Projects U.S. Nuclear Regulatory. Commission 101-Marietta' Street, NW,' Suite 2900 1
Atlanta',. Georgia ' 303231 (Mr.
J..A.
Zwolinski,' Assistant Director for Prejects Diviwlon of TVA Projects.
Offica of Speciall Projects -
U.S. Nuclear Regulatory Commission 4350 Bast, West Highway EWW 322.
Jethesda, Maryland 20814-Sequoyah Residen't Inspector-Sequoyah Nuclear Plant i'
2600~Igou Ferry Road Soddy Daisy, Tennessee 37379 l
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t ENCLOSURE 1 SUPPLEMENTAL INFORMATION REGARDING TVA-SQN-TS-87-02 This enclosure provides informat8 on regarding operator action when a downscale failure of an effluent radiation monitor occurs in steam generator blowdown effluent with the minimum channels operable as required by the technical i
specifica' ions.
l Technical specification 3.3.3.9 requires one minimum channel operable for I
steam generator blowdown effluent radiation monitors before initiating a release. As stated in action 31 of table 3.3-12 with the number of channels operable, less than required effluent releases via this pathway may continue provided grab samples are analyzed for gross radioactivity gamma.
Therefore, during a release to the environment with the minimum required channels operable (one) when a downscale failure occurs, the effluent monitor would be I
declared inoperable and the release terminated per technical specification 3.3.3.9.
After resampling, the release could continue provided the limiting conditions for operation are met.
System operating Instruction (SOI-55),
" Annunciator Response," and Surveillance Instruction (SI-401), " Steam Generator Blowdown Continuous Release," will be revised by July 31, 1987, to ensure that, duting a release of steam generator blowdown effluent to the environment and a downscale failure of a radiation monitor with the minimum channels operable (i.e. one radiation monitor), the release will be immediately terminated and resampled befora continuing the release via this pathway.
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EECLOSURE 2 LIST OF C0!!MITHENTS j
1.
Revise SOI-55 by July 31, 1987, to state requirements outlined in 1
enclosure 1.
I 2.
Revise SI-401 by July 31, 1987, to state requirements outlined in enclosure 1 i
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