ML20073A681

Application for Amends to Licenses NPF-17 & NPF-9,consisting of Changes Necessary to Allow Replacement of Existing 125 Volt Dc Battery Cells W/New Cells to Enhance Safety Due to Increasing Reliability of 125 Volt Dc Control Sys

ML20073A681
Person / Time
Site:	Mcguire, McGuire
Issue date:	04/16/1991
From:	Tuckman M DUKE POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20073A683	List: ML20073A681 ML20073A689
References
NUDOCS 9104230307
Download: ML20073A681 (3)

Text

Il I

• llke 1%nr Canpany ilb it a vn

• % ir av Prenlar twn thpf f ur Pro side at i

PG ik Im? kirar Operatwns

, r!wintre \C.MillY t 7v11H;iMI

! DUKE POWER April 16. 1991 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555

Subject:

McGuire Nuclear Station Docket Nos. 50-369 and 50-370 Proposed Technical Specifications Changes Replacement of 125 Volt DC Vital Batteries (T.S. 3/4.8.2 and Bases Section 3/4.8)

Gent.lcmen:

Pursuant to 10CFR 50.4 and 50.90, attached are proposed license amendments to Appendix A, Technical Specifications, of Facility Operating Licenses NFF-9 and NPF-17 for McGuire Nuclear b tion Units 1 and 2, respectively. The proposed amendments are a one-time only change necessary to allow replacement of the existing 125 volt DC battery cells with new cells. This replacement will result in a not enhancement. in safety at McGuire Nuclear Station due to increasing the reliability of the 125 Volt DC Vital Instrumentation and Control Power System.

While a battery bank is being replaced, a temporary battery bank will be installed so that the af fectou vital bus will remain battery-backed during the replacement. period. We will ensure that all procedures and training required to safely conduct the battery replacement operation are developed and implemented.

Attachment I contains the proposed Technical Specifications changes.

Att achment 2 contains the justification and saf ety analysis for the proposed changes. Pursuant to 10CFR 50.91, Attachment 3 provides the analysis performed in accordance with the standards contained in 10CFR 50.92 which concludes that the proposed amendments do not involve a Significant liasards Consideration. Duke Power is forwarding a copy of this amendment request application and No Significant Hazards Consideration Analysis to the North Carolina Department of iluman Resources. The proposed amendments have been reviewed and have been determined to have no adverse safety or environmental impact.

It is requested that review and approval of these proposed amendments be expedited to allow replacement of two of the 125 volt DC battery banks 9104230307 910416 PDR ADOCK 05000369 P PDR l I

_ . . _ _ _ _ ___m._ ______ __

Document Control Desk Page 2 April 16, 1991 prior to the next refueling outage, which is currently scheduled to begin on August 30, 1991. The first battery bank is currently scheduled to be replaced beginning on July 1, 1991.

Any changes required to the McGuire Final Safety Analysis Report as a result of the new batteries will be implemented af ter all four battery banks have been replaced. It is anticipated that the FSAR changes will be made in conjunction with the September 1993 update.

Should there be any questions concerning these proposed amendments or if additicnal information is required, please call L.J. Rudy at (704) 373-3413.

Very truly yours, f'\,3 A.S. Tuckman 1.JR003/ lj r Attachments xc: (W/ Attachments)

Mr. S.D. Ebneter Regional Administrator U.S. Nuclear Regulatory Commission D egion II 101 Marietta St., NW, Suite 2900 Atlanta, Georgia 30329 Mr. Dayne Brown, Chief Radiation Protection Branch Division of Facility Services Department of Iluman Services 701 Barbour Drive Raleigh, N.C. 27603-2008 Mr. T.A. Reed Office of Nuclear Reactor Regulation U.S. Nuc1 car Regulatory Commission One White Flint North, Mail Stop 9113 Washington, D.C. 20555 Mr. P.K. VanDoorn NRC Senior Resident Inspector McGuire Nuclear Station

i

' Document Control Desk

'Page 3 April 16, 1991 M.S. Tuckman, being duly sworn, states that he is Vice President of Duke Power Company; that he is authorized on the part of said Company to sign and file with the Nuclear Regulatory Commission this revision to the McGuire Nuclear Station License Nos. NPF-9 and NPF-17 and that all statements and matters set forth therein are true and correct to the best of his knowledge.

i

(

)ts.Gh M.S. Tuckman, Vice President Subscribed and sworn to before me this 16th day of April, 1991.

QY>uot iry Public k b)eD %.

T My Commission Expires:

YMQxA /6 lYf$

I

--- _