ML17215A259

Application for Amend to License NPF-16,modifying Tech Specs to Delay Initial Inservice Insp for Two Mechanical Snubbers on Containment Spray Sys Until First Refueing Outage

ML17215A259
Person / Time
Site:	Saint Lucie
Issue date:	02/24/1984
From:	Williams J FLORIDA POWER & LIGHT CO.
To:	Eisenhut D Office of Nuclear Reactor Regulation
Shared Package
ML17215A260	List: ML17215A259 ML17215A261
References
L-84-45, NUDOCS 8403010297
Download: ML17215A259 (8)

Text

REGULATORY Ih RMATION DISTRIBUTION SYST (RIDS) cf ACCESSION NB3:8403010297 DOC ~ DATE+, 84/02/24'OTARIZED: NO P DOCKET FACIL:50-389 St. Lucie Plant~ Unit 2, Florida Power 8, Light Co. 05000389 AUTH ~ NAt"'lE AUTHOR AFFILIATION WILLIAMS' ~ l'l ~ Florida Power 8 Light Co, RECIP ~ NAME RECIPIENT AFFILIATION EISENHUTrD..G, Division of, Licensing

SUBJECT:

Application for amend to License NPF 16imodifying Tech Specs to depay initial inser vice insp for two mechanical snubber s on containment spray sys unti l first r efueing outage, DISTRIBUTION CODE: A047S COPIES RECEIVED:LTR r ENCL SI E:

TITLE: OR Submittal: Inservice Inspection/Testing NOTES:

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAIVE LTTR EflCL NRR ORB3 BC 01 7 7 INTERNAL: ELD/HDS2 1 0 NRR 8 15 1 1 NRR/DE/HTEB 14 1 1 EG FI E 04 1" 1 RGN2 1 1 EXTERNALS ACRS 16 10 10 LPDR 03 1 1 NRC PDR 02 1 1 NSIC 05 1 NTIS TOTAL NUMBER OF COPIES REQUIRED: LTTR 26 ENCL 25

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FLORIDA POWER 5 LIGHT COMPANY February 24, 1984 L-84-45 Office of Nuclear Reactor Regul ation Attenti on: Mr. Darrel G. Ei senhut, 1 Di rector Division of Licensing U.S. Nuclear Regul atory Commission Washington, D.C. 20555

Dear Mr. Eisenhut:

Re: St. Luci e Uni t 2 Docket No. 50-389 Proposed Li cense Amendment Snubber Visual Ins ection In accordance with 10 CFR 50.90, Florida Power 8 Light Company submits herewith three signed originals and forty copies of a request to amend Appendix A of facility Operating License NPF-16.

This amendment is submitted to modify the existing technical specification requiraIIent for the initial inservice inspection for two mechanical snubbers.

II At present, the technical specifications require a visual inspection of all safety-related snubbers between 4 and 10 months after commencing power operati on. The purpose of the vi sual inspecti on i s to identi fy obvious damage to snubbers.

FPL requests that this visual inspection be delayed until the first refueling for two safety-related snubbers on the containment spray system.

Justification for this relief is as follows:

(1) The required inspection has been done on 321 mechanical (and 20 hydraulic) snubbers with no inoperable snubbers and no significant a

problems found. This is the total required snubber inspection except

j. for the two inaccessible snubbers under discussion.

II (2) Snubbers are required to perform their safety function during a seismic i@a event. The St. Lucie site is located in a region of infrequent and minor seismic activity. The following is taken from Section 2.4.2.1 of I'<IXIR GIRL'lO'OiCI, the FSAR concerning "Seismicity":

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mlrl "The Uniform Building Code designates the site vicinity as Zone 0 on the map entitled, "Map of the United States Showing Zones of Approximate Ol& i Equal Seismic Probability." The US Coast and Geodetic Survey indicates OO .-'l Zone 0 as an area of no earthquake danage. Hadley and Devin also place oc Il this portion of Florida in a zone where the seismic frequency approaches oa r!A

.', zero. Furthermore, an exanination of the epicentral map (fr gures 2.5-31

~g 0 and 2.5-32 of the FSAR shows a broad segment of south ce ntral Florida in which possible'epicenters are entirely absent. The St. Lucie site is in gpss

'I the middle of this region."

PEOPLE... SERVING PEOPLE

(3) The startup test program as well as additional programs carried out to establish compliance with I 8 E Bulletin 79-14 have insured proper design, installation, and operation of all snubbers.

The following steps have been taken to insure that snubbers will perform their safety function:

a) They were tested at the factory.

b) Upon receipt at the site, they were exercised to verify there are no frozen parts.

c) The snubbers were exercised just prior to installation.

d) Correct install ation was verified by Site guality Control inspectors e) During Hot Functional Testing, a thermal expansion monitoring progran verified that all snubbers moved properly and had the correct cold and hot load set ti ngs.

f) FPL's vibration monitoring progr an identified all areas of high vibration and none of the areas identified involved snubbers.

g) FPL's IEB 79-14 progran assured that all hangers are correctly designed for the as-built system.

(3) Unit shutdown solely to perform this inspection would place an unwarranted financi al burden on FPL's customers.

The proposed amendment is described below and shown on the accompanying technical specification Page 3/4 7-21.

Technical Specification 4.7.9(b) is changed to postpone visual inspection of the two containment spr ay snubbers listed in Table 3.7-3b that are inaccessible during normal plant operation until the first refueling.

A safety evaluation and significant hazards evaluation is required by 10 CFR 50.91 and 92 is in Attachment A. The proposed amendment has been reviewed by the St. Lucie Plant Facility Review Group and the Florida Power 8 Light Company Nuclear Review Board.

In accordance with 10 CFR 170.22, it has been determined this represents a Class III anendment and a check for payment will follow under separate cover.

Very truly yours, J.W. Williams, Jr.

Vi ce President Nuclear Energy Department JWW/PLP/djc

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STATE OF FLORIDA )

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COUNTY OF DADE )

J. W. Williams Jr., being first duly sworn, deposes and says:

That he is a Vice President of Florida Power 8c 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.

J. W. Williams, Jr.

Subscribed and sworn to before me this day of , 19K 1~

NOTARY . UBL C, in and for the County

"'f Dade, State of Florida.

My commission expires:

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