L-93-035, Application for Amend to License DPR-67,revising TS Figure 2.1-1,Tables 2.2-1 & 3.2-1 & Bases Pages B2-1 & B2-2 for Reduction of RCS Design Flow to Accomodate Future SG Tube Plugging Up to 25% (Average)

Application for Amend to License DPR-67,revising TS Figure 2.1-1,Tables 2.2-1 & 3.2-1 & Bases Pages B2-1 & B2-2 for Reduction of RCS Design Flow to Accomodate Future SG Tube Plugging Up to 25% (Average)

ML17227A784
Person / Time
Site:	Saint Lucie
Issue date:	03/19/1993
From:	Sager D FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17227A785	List: L-93-035, Application for Amend to License DPR-67,revising TS Figure 2.1-1,Tables 2.2-1 & 3.2-1 & Bases Pages B2-1 & B2-2 for Reduction of RCS Design Flow to Accomodate Future SG Tube Plugging Up to 25% (Average) ML17227A784 ML17227A786 ML17227A787 ML17227A788 ML17227A789
References
L-93-035, L-93-35, NUDOCS 9303310048
Download: ML17227A784 (7)

Text

DOCKET 05000335

SUBJECT:

Application for amend to License DPR-67,revising TS Figure 2.1-1,Tables 2.2-1 6 3.2-1 6 Bases pages B2-1 6 B2-2 for reduction of RCS design flow to accomodate future SG tube plugging up to 25% (average).

DISTRIBUTION CODE:

A001D COPIES RECEIVED:LTR ENCL SIZE:

TITLE: OR Submittal: General Distribution ACCEI ERAT~ DOCUMENT DIST BVTIONSYSTEM

.REGULAT~ INFORMATION DISTRIBUTIO STEM (RIDS)

ACCESSION NBR:9303310048 DOC.DATE: 93/03/19 NOTARIZED: YES FACIL:50-335 St. Lucie Plant, Unit 1, Florida Power

& Light Co.

AUTH.NAME AUTHOR AFFILIATION SAGER,D.A.

Florida Power a Light Co.

Wd6 RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

NOTES:

RECIPIENT ID CODE/NAME PD2-2 LA NORRISiJ INTERNAL: ACRS NRR/DORS/OTSB NRR/DSSA/SCSB NRR/DSSA/SRXB OC ZbN~

EG FILE 01 EXTERNAL: NRC PDR COPIES LTTR ENCL 1

1 2

2 6

1 1

1 1

1 1

1 RECIPIENT ID CODE/NAME PD2-2 PD NRR/DE/EELB NRR/DRCH/HICB NRR/DSSA/SPLB NUDOCS-ABSTRACT OGC/HDS3 NSIC COPIES LTTR ENCL 1

1 1

1 1

1 1

1 1

1 1

0 1

1 NOTE TO ALL"RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTEI CONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 504-2065) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED:

LTTR 22 ENCL 20

1t 1

1 II

p.o. Hex z8, Ft. pierce, FL 34954-0128 March 19, 1993 L-93-035 10 CFR 50.90 U.

S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.

C.

20555 RE:

St. Lucie Unit 1 Docket No. 50-335 Proposed License Amendment St. Lucie Unit 1 Reduction of Reactor Coolant S stem Desi n Flow Pursuant to 10 CFR 50.90, Florida Power 6 Light Company (FPL) requests to amend Facility Operating License DPR-67 for St. Lucie Unit 1.

The proposed amendment allows a reduction in Reactor Coolant System (RCS) design flowrate from the current value of 370,000 gpm to 355,000 gpm.

Accordingly, changes to Technical Specifications (TS)

Figure 2.1-1, Tables 2.2-1 and 3.2-1, and associated TS Bases pages B2-1 and B2-2 are forwarded herewith.

The purpose of the proposed change is to accommodate future steam generator tube plugging (SGTP) up to 25'average).

Though not expected, it is possible that SGTP performed during the upcoming Spring 1993 refueling outage may eliminate any remaining margin between the actual number of plugged tubes and that used in existing safety analyses assumptions.

Therefore, your early attention to this proposal is requested.

Please note that acceptability of the attached analyses is contingent upon favorable review and approval of Topical Report XN-NF-82-49(P),

"Exxon Nuclear Company Evaluation Model Revised EXEM PWR Small Break Model", Revision 1, Supplement 1,

May 1992.

This proprietary report was submitted to the staff via Siemens Power Corporation transmittal letter dated May 1, 1992.

Attachment 1 contains copies of TS pages marked-up to show the changes.

Attachment 2 is a Safety Analysis in support of the proposed amendment.

Attachment 3 is the "Determination of No Significant Hazards Consideration."

Enclosures 1,

2, and 3 are reports of analyses performed by the Unit. 1 fuel vendor in support of this request:

(1)

"Siemens Power Corporation St.

Lucie Unit 1 Chapter 15 Event Review and Analysis for 25> Steam Generator Tube Plugging",

(2) "St. Lucie Unit 1 Large Break LOCA/ECCS Analysis with 25

+

7%

SGTP",

and (3) "St. Lucie Unit 1 Small Break LOCA Analysis".

S>0005 93033i0048 9303i9 I

PDR ADOCK 0500033S P

PDR an FPL Group company

(

)

'i li

St. Lucie Unit 1 Docket No.'0-335 Proposed License Amendment St. Lucie Unit 1 Reduction of Reactor Coolant S stem Desi n Flow The proposed amendment has been reviewed by the St. Lucie Facility Review Group and the Florida Power

& Light Company Nuclear Review Board.

In accordance with 10 CFR 50.91 (b)(1),

a copy of the proposed amendment is being forwarded to the State Designee for the State of Florida.

Please contact us if there are any questions about this submittal.

Very truly yours, D. A.

Vice St.

L ger sident ie Plant DAS/RLD/kw DAS/PSL 8881-93 Attachments Enclosures cc:

Stewart D. Ebneter, Regional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, St. Lucie Plant.

Mr. W.A. Passetti, Florida Department of Health and Rehabilitative Services.

St. Lucie Unit 1 Docket No. 50-335 Proposed License Amendment St. Lucie Unit 1 Reduction of Reactor Coolant S stem Desi n Flow STATE OF FLORIDA

)

)

COUNTY OF ST.

LUCIE

)

D. A. Sager being first duly sworn, deposes and says:

That he is Vice President, St. Lucie Plant for the Nuclear Division of Florida Power S Light Company, the Licensee herein; That he has executed the foregoing document; that. the statements made in this document are true and correct to the best of his knowledge, information and belief, and that he is authorized to execute the document on behalf of said Licensee.

D.

. Sager STATE OF FLORIDA COUNTY OF ST.

LUC (0 The, foregoing instrument was acknowledged before me thi i~sJ.. day of

&1Cl'3, 19~

by D.A. S'ager,=who is personally known to me and who d'djtake an oath.

/%Pi el

', kA Rf=-rd Name of Notary Public My Commission expires Commission No-.

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