ML20043G365

Application for Amends to Licenses NPF-9 & NPF-17,reducing Required Ice Bed Ice Weight of Containment Ice Condenser & Correcting Error in Tech Spec Bases Section

ML20043G365
Person / Time
Site:	Mcguire, McGuire
Issue date:	06/07/1990
From:	Tucker H DUKE POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20043G366	List: ML20043G365 ML20043G369
References
NUDOCS 9006200196
Download: ML20043G365 (3)

Text

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c oJ Duke h>w Company llu 2 Tan j>0 na 33198 ike l>esident Chadotts N C 2SN: NudwI%dudio" (TN)3734531 DUKEPOWER June 7, 1990 i

U. S. Nuclear Regulatory Commission ATTN Document Control Desk Washington, D.C. 20555

Subject:

McGuire Nuclear Station, Units 1 and 2

• Docket Nos. 50-369 and 50-370 ->

Requested Technical Specifications Changes (T.S. 3/4.6.5.1)

Containment Ice Condenser Ice Bed Ice Weight Reduction Gentlemen Attached (pursuant to 10 CFR 50.4 and 50.90) are License Amendment Requests to Appendix A Technical Specifications (T.S.), of Facility Operating Licenses NPF-9 and NPF-17 for McGuire Nuclear Station Units 1 and 2,.

respectively. The requested amendments reduce the required ice bed ice weight of the-containment ice condenser, and correct an error in the T.S.'s Bases section. These changes would provide needed additional flexibility in '

maintaining required ice bed ice weight.

Attachment 1 contains the requested Technical Specifications Changes (" Pen and Ink" markups, identified by vertical margin lines). Attachment 2 contains the justification and safety analysis to support the requested changes. . Included in Attachment 2 is: A) the McGuire Nuclear Station FSAR 1989 Containment Pressure Calculation; and B) a Peak Pressure Reanalysis with Reduced Ice Weight for McGuire Units 1 and 2. Pursuant to 10 CFR 50.91 Attachment 3 provides the analysis performed in accordance with the '

i standards contained in 10 CFR 50.92 which concludes that the requested l

amendments do not involve a Significant llazards Consideration, and Duke-is y forwarding a copy of this amendment request application and No Significant  ;

llazards Consideration Analysis to the North Carolina Department of Human l Resources. The requested amendments have been reviewed and approved in accordance with McGuire Technical Specifications 6.5.1.2 and 6.5.2.8.d., and have been determined to have no adverse safety or environmental impact.

I It is requested that NRC review and approval of these requested amendments be completed by March 1, 1991, in order to avoid a possible mid-cycle '

shutdown to reload ice due to the extended Unit 1/ Cycle 7 fuel cycle. Past operating experience indicates that the Unit I worst case sub group average ice weight at a 95% Icvel of confidence will reach the current T.S. limit approximately April 1991, and a month leeway is desired due to the inaccuracy inherent in such an estimate and other factors (e.g., actual outage length and cycle start dates, etc.). The NRC staff will be kept apprised of any significant changes to the ice condenser's situation.

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' Juns 7, 1990 1 Page 2 This matter _ has previously been discussed with Mr. D. S. Ilood of your staff in a~ meeting held at McGuire Nuclear Station on April 24, 1990. The McGuire

- FSAR will be revised to reficct the reanalysis (in addition to the FSAR 1989 containment pressure calculation and error correction) in the applicable  ;

annual FSAR update following NRC approval of these requested amendments, and =d appropriate statioi procedures changes will be implemented upon approval, c Should there be any questions concerning these~ amendment requests or if additional _information.4s required, please contact Mr. P. B. Nardoci at t (704)-373-7432.

- Very truly yours.-

g. _ l' -

f llal B. Tucker ,

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PBN/200/lca

' Attachments xc: (W/ Attachments)

Mr. S. D. Ebneter, Regional Administrator U. S. Nuclear Regulatory Commission Region IIL 101'Marietta St., NW., Suite 2900 .l Atlanta, Georgia 30329 1 Mr. z D.11. Brown, Chief $

~PRadiation Protection Branch' j Division of Facility Services Department' of Iluman Resources ,

~701~Barbour Drive' l Raleigh,1 North Carolina 27603-2008 -

~Mr. D. S. Ilood l Office of Nuclear Reactor Regulation ,

U. S. Nuclear Regulatory Commission {

~ Washington, D.C. 20555 j Mr. P. K. VanDoorn NRC Resident Inspector .i McGuire Nuclear Station  !

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'U~. S'.'Nuclacr R:gulctory Commiecion

'Juns 7, 1990

'Page 4 llal B. Tucker, 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 Technical Specifications, Appendix A to Facility Operating- l 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, hf~ #4 g

N. // Zn 11al B. Tucker, Vice President o Ji-; j l

Subscribed and sworn to before me this 7th day of June, 1990.

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