ML17222A557

Application for Amend to License NPF-16,revising Control Element Assembly Drop Time,Per Info Notice 88-047 & C-E Info Bulletin 88-03

ML17222A557
Person / Time
Site:	Saint Lucie
Issue date:	10/20/1988
From:	CONWAY W F FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
Shared Package
ML17222A558	List: ML17222A557 ML17222A559
References
IEIN-88-047, IEIN-88-47, L-88-459, NUDOCS 8810270055
Download: ML17222A557 (7)

Text

4~.i4.REGULAT Y INFORMATION DlSTRIBUTIO SYSTEM (RIDS)ACCESSION NBR: 8810270055 DOC.DATE: 88/10/20 NOTARIZED:

YES FACIL: 50-389 St.Lucie Planti Unit 2i Florida Power 5 Light Co.AUTH.NAME AUTHOR AFFILIATION CONWAYi W.F.Florida Power 5 Light Co.RECIP.NAME'ECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Application for amend to License NPF-ihi revising control element assembly drop timei per Info Notice 88-047.DISTRIBUTION CODE: A001D COPIES RECEIVED: LTR ENCL SIZE: TITLE: QR Submittal:

General Distribution NOTES: DOCKET 0 05000389 RECIPIENT ID CODE/NAME PD2-2 LA TQURIGNY>E INTERNAL: ACRS NRR/DEST/ADS 7E NRR/DEST/ESB 8D NRR/DEST/RSB 8E NRR/PMAS/ILRB12 OGC/HDS2 RES/DSIR/EIB EXTERNAL: LPDR NSIC COPIES LTTR ENCL 1 0 1 6 6 1 1 1 1 1 1 0 1 1 1 1 RECIPIENT ID CODE/NAME PD2-2 PD ARM/DAF/LFMB NRR/DEST/CEB 8H NRR/DEST/MTB 9H NRR/DOEA/TSB 11 CS-ABSTRACT G F 01 NRC PDR COPIES LTTR ENCL 2 2 I 1 0 1 1 1 1 1 1 1 1 1 t y/4o w qp o/p TOTAL NUMBER OF COPIES REQUIRED: LTTR 25 ENCL 22

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+Ng r OCTOBER 2 0 1S88 L-88-459 10CFR 50.90 10CFR 50.36 U.S.Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C.20555 Gentlemen:

Re: St.Lucie Unit 2 Docket No.50-389 Proposed License Amendment Control Element Assembl Dro Time In accordance with 10 CFR 50.90, Florida Power and Light Company (FPL)submits herewith a request to amend Facility Operating License NPF-16.This amendment is submitted to revise the control element assembly (CEA)drop time based on FPL's review of NRC Information Notice No.88-47,"Slower-Than-Expected Rod-Drop Time Testing", and Combustion Engineering's (CE)Info-Bulletin 88-03," CEA Drop Time Testing", dated July 14, 1988 and June 14, 1988, respectively.

These documents contained information on the slower control element drive mechanism (CEDM)coil'electromagnetic field decay time associated with CEDM design which results when power is interrupted through the reactor trip breakers as compared to interruption through the individual CEDM circuit breakers.The 90%insertion time for the CEA's is being increased from 2.7 seconds to 3.1 seconds.A marked up copy of the affected Technical Specification page is included as Attachment 1.A Safety Analysis in support of the proposed amendment is included as Attachment 2.A"Determination of No Significant Hazards Consideration" is provided as Attachment 3.Attachment 4 contains a discussion of the events which were re-analyzed in support of the proposed amendment.

The proposed amendment has been reviewed by the St.Lucie Facility Review Group and the Florida Power&Light Company Nuclear Review Board.Staff review and approval of the proposed license amendment is requested by March 1, 1989, to support the startup of St.Lucie.3810270055 831020 PDR AQOCK 05000335'PDC i)p qg>an FPL Group company U.S.Nuclear Regulatory Commiaaion L-88-459 Page 2 In accordance with 10 CFR 50.91 (b)(l), a copy of the proposed amendment is being forwarded to the state designee for the State of Florida.In accordance with 10 CFR 170.21, FPL Check No.9492 is attached as remittance for the license amendment application fee.Please contact us if there are any questions about this submittal.

Very truly yours, W..Conw Senior Vice resident-Nuclear WFC/MD/gc Attachments (4)cc: Malcolm L.Ernst, Acting Regional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, St.Lucie Plant Mr.Jacob Nash, Florida Department of Health and Rehabilitative Services 0 Vq,.Je~.ling t STATE OF FLORIDA))ss.COUNTY OF PALM BEACH)W.F.Conwa being first duly sworn, deposes and says: That he is Senior Vice President-Nuclear, of Florida Power and 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.W.F.C way Subscribed and sworn to before me this day of 190 o<.,r~..NOTARY PUBX>I", in and f the County of ,Palm Beach,-State of Florida r'j (Notary Public, State of Florida c U Qy Commission Expires luna 1, 19S9 My'Corot<<ssion expires h rro fats~Issurhnco, Inc.

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