ML20071J003
| ML20071J003 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 05/20/1983 |
| From: | Heider L VERMONT YANKEE NUCLEAR POWER CORP. |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20071J006 | List: |
| References | |
| EVY-83-41, NUDOCS 8305250569 | |
| Download: ML20071J003 (2) | |
Text
_ _
VERMONT YANKEE e
NUCLEAR POWER CORPORATION 2.C.2.1 FVY 83-41 RD 5, Box 169, Ferry Road, Brattleboro, VT 05301 y,,,,
. y ENGINEERING OFFICE f
May 20, 1983 1871 WORCESTER ROAD FRAMINGHAM, MASSACHUSETTS 01701 TEilPHONE 617-472-4100 United States Nuclear Regulatory Commission Washington, D. C. 20555 Attention:
Office of Nuclear Reactor Regulation
References:
(a) License No. DPR-28 (Docket No. 50-271)
(b) Letter, USNRC to VYNPC, " Order for Modification of License," dated January 13, 1981 (c) Letter, USNRC to VYNPC, " Amendment No. 24 to Facility Operating License," dated July 19, 1976 (d) Letter, VYNPC to USNRC, FVY 83-37, dated May 17,1983
Subject:
Safety-Related Shock Suppressors (Snubbers)
Dear Sir:
Pursuant to Section 50.59 of the Commissions Rules and Regulations, Vennont Yankee Nuclear Power Corporation hereby proposes the following modifications to Appendix A of the Operating License.
PROPOSED CHANGE Replace pages 116a, 116b, and 116c of the Vermont Yankee Technical Specifications with the enclosed pages 116a, 116b, 116c, 116d, 116e, and 116f. These pages have been revised to reflect the addition and deletion of safety-related shock suppressors resulting from our consideration of the requirements of Reference (b), " Order for Modification of License", dated Janua ry 13, 1981.
REASON FOR CHANGE This revision reflects a change in the number of safety-related shock suppress rs installed concurrent with the completion of our Mark I Contaminent Long-Term Program. Table 4.6.2 has been revised to reflect _the currently f
installed shock suppressors. A list of the shock suppressors, which have been
[I added and deleted, was previously submitted to the NRC via Reference (d).
SAFETY CONSIDERATIONS C
Installation of the additional shock suppressors will increase the load IM*00 carrying capability of certain piping systems to withstand torus induced hydrodynamic loads, as called for in our Mark I Containment Program. The analysis which determined the need for the additional shock suppressors also resulted in a need to replace certain suppressors with rigid restraints; while one other was determined to be no longer necessary.
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May 20, 1983 Unitsd Stctes Nuc1scr Reguistory Comunicolon
' Attention:- Office of Nuclear Regulatory Commission Page 2 4
This change calls' for the same operating and surveillance requirements specified'in existing; Technical Specifications.
These requirements have bc:ea previously reviewed by the NRC and were approved by Reference (c).
Based on the above, we have concluded that the probability of previously evaluated' accidents would not be increased by this change. The possibility of a different type of accident is not created nor are the margins of safety, as
- defined in the basis of the Technical Specifications, reduced by this change.
Therefore, this change does not constitute an unreviewed safety question as defined in 10CFR50.59(a)(2).
This submittal has been reviewed by the Vermont Yankee Nuclear Safety Audit and Review Committee.
FEE DETERMINATION This change is pro forma and administrative in nature, and has no safety l
or environmental significance, For these reasons, Vermont Yankee Nuclear Power Corporation proposes this as a Class II Amendment. A payment of i
$1,200.00 is enclosed.
I l
SCHEDULE OF CHANGE The change described above will be incorporated into the Vermont Yankee Technical Specifications upon receipt of your approval.
Very truly yours, VERMON1 YANKEE NUCLEAR POWER CORPORATION
/
H /4&Av' L. H. Heider Vice President
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- COMMONWEALTH OF MASSACHUSETTS)
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Then personally appeared before me, L. H. Heider, who, being duly sworn, did state that he is a Vice President of Vermont Yankee Nuclear Power Corporation, that he is duly authorized.to execute and file the foregoing-request in the name and on the. behalf of Vermont Yankee Nuclear Power Corporation and that the statements therein are true to the best of his
- knowledge and belief.
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