BVY-99-111, Informs That Encl TS Bases Page 91 Has Been Revised to Allow Reactivity Anomaly BOC Steady State Core Reactivity to Be Normalized Between off-line Uncorrected Solution & on-line 3D-Monicore Exposure Corrected Solution

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Informs That Encl TS Bases Page 91 Has Been Revised to Allow Reactivity Anomaly BOC Steady State Core Reactivity to Be Normalized Between off-line Uncorrected Solution & on-line 3D-Monicore Exposure Corrected Solution
ML20211J013
Person / Time
Site: Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date: 08/31/1999
From: Sen G
VERMONT YANKEE NUCLEAR POWER CORP.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20211J020 List:
References
BVY-99-111, NUDOCS 9909030017
Download: ML20211J013 (1)


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VERMONT YANKEE y NUCLEAR POWER CORPORATION 185 Old Ferry Road, Brattleboro, VT 05301-7002 (802) 257-5271 August 31,1999 BVY 99-111 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk <

J Washington, DC 20555

Subject:

Vermont Yankee Nuclear Power Station License No. DPR-28 (Docket No. 50-271)

Revision of Technical Specification Bases Pace This letter provides a revised Technical Specification (TS) Bases page.

Bases page 91 has been revised to allow the reactivity anomaly beginning-of-cycle steadv state core reactivity to be normalized between off-line (predicted) uncorrected solution and the on-line (measured) 3D-Monicore exposure corrected solution.

This change to the TS Bases has been determined to not involve an unreviewed safety question in accordance with 10CFR50.59 and therefore does not require prior NRC approval.

Also attached for your convenience is a marked-up Bases page indicating where the specific changes were made.

Should you have any questions concerning this matter, please contact Mr. Jeffrey T. Meyer at (802) 258-4105.

Sincerely, VERMOW YANKEE NUCI. EAR POWER CORPORATION l

Ovh

/Gau'fam Sen /

l Licensing Manager Attachments cc: USNRC Region 1 Administrator i USNRC Resident Inspector - VYNPS l USNRC Project Manager - VYNPS  !

Vermont Department of Public Service g l\

03wn (d \

9909030017 990831 PDR ADOCK 050 2i P

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