ML17214A161

Application to Amend License DPR-67,revising Tech Specs to Extend Testing Cycle of Valves Utilized as Part of Turbine Overspeed Protection Sys.Change Based on Vendor Recommendation

ML17214A161
Person / Time
Site:	Saint Lucie
Issue date:	06/06/1983
From:	Robert E. Uhrig FLORIDA POWER & LIGHT CO.
To:	Eisenhut D Office of Nuclear Reactor Regulation
Shared Package
ML17214A162	List: ML17214A161 ML17214A163
References
L-83-346, NUDOCS 8306100140
Download: ML17214A161 (8)

Text

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ACCESSION NBR: 8306100140 DOC,DATE! 83/03/03 NOTARIZED: YES DOCKET FACIL:50~389 St, Lucie Plantg, Unj,t P.i Florida Power 8 Light Co. 05000389 AUTH,NAME 'UTHOR AFFILIATION UHRIGiR 6,

~ Florida Power '8 .Light Co, RECIP NAME RECIPIENT AFFILIATION EISENHUTiDIG Division of Licensing

SUBJECT:

Application ~to amend License DPR 67~revising Tech Specs to extend testing cycle-of valves utilized's part of turbine overspeed protection sys,Change based on vendor recommendation~'ISTRI BUT ION CODE ~" A00 1 S 'OPIES RECEIVED LTR . ENCL SIZE 0~

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OX 14000, JUNO BEACH, FL 33408 FLORIDA POWER 8( LIGHT COMPANY June 6, 1983 L-83-346 Office of Nuclear Reactor Regulation Attention: Mr. Darrell G. Eisenhut, Director Division of Licensing U. S. Nuclear Regulatory Commission Washington,. D. C. 20555

Dear Mr. Eisenhut:

Re: St. Luci e 'Unit 2 Docket No. 50-389 Proposed License Amendment Turbine Overspeed Protection 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 DPR-67.

This amendment is submitted to extend the testing cycle of the valves utilized as part of the turbine overspeed protection systEm. This change in test frequency is based on the vendor's recommendation.

The proposed amendment is described below and shown on the accompanying Technical Speci fication pages.

Pa e 3/4 3-60 The testing cycle for the turbine-stop valves, turbine control valves, turbine reheat stop valves and turbine reheat intercept valves is changed to monthly.

In accordance with 10 CFR 50.91(a)(1) we have determined that this amendment poses no significant hazard. As noted in the safety evaluation, monthly testing yields equivalent results to weekly testing, without the attendant risks of the change in plant operating state required to perform the test.

The correction reduces the allowable closure time; a move in the conservative direction. There fore the amendment does not:

1) Involve a .significant increase in the probability or consequences of an accident previously evaluated; or

2) Create the possibility of a new or different kind of accident frcm any accident previously evaluated; or

3) Involve a significant reduction in a margin of safety.

8306100140 830303 POR ADOCK 05000389 PDR PEOPLE... SERVING PEOPLE J

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Page 2 Office of Nuclear Reactor Regulation Mr. Darrell G. Eisenhut The proposed amendment has been reviewed by the St. Lucie Facility Review Group and the Florida Power 8 Light Company Nuclear Review Board.

Yery truly yours, Robert E. Uhrig Yice President Advanced Systems 5 Technology REU/JEM/cab Attachment cc: Mr. J. P. O'Reilly Harold F. Reis, Esquire

SAFETY. EVALUATION.

The original testing interval for the subject valves was based on a-recommendation from the vendor, Westinghouse. We have recently received a change in that position (see attached) that states that based on a review of testing frequency and performance data and utility surveys, Westinghouse has concluded that there is no significant di fference in the valve failure, rate between valves tested weekly and those tested monthly. In view of the fact that the plant must be brought down somewhat in power to perform this test, reducing the amount of times changes are made to normal operating conditions is actually beneficial to overal l plant safety.

A STATE OF 'FLORIDA )

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COUNTY OF PALM BEACH )

Robert E. Uhri being first duly sworn, deposes and says:

That he is Vice President of Florida Power 8 Light Company, the Licensee herein; That he has executed the foregoing document; that the statements mode 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.

Robert E. Uhrig Subscribed and sworn to before me this (0 'day of l 983.

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,iNOTARY UBLIC, in and for the County of'Palm Beach, State of Florida.

Notary Public, State ot F/onda at Large My Cornrnission Expires October 30, 1983 My commission exPires: ~ L" A ' Banding A'cy

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