ML20094N346

Interim Potentially Reportable Deficiency 172 Re Changes to Emergency Feedwater Control Sys That May Not Support FSAR Chapter 15.Initially Reported on 840611.Condition Not Reportable Per 10CFR50.55(e)

ML20094N346
Person / Time
Site:	Waterford
Issue date:	08/02/1984
From:	Gerrets T LOUISIANA POWER & LIGHT CO.
To:	Jay Collins NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
172, W3K84-1778, NUDOCS 8408160180
Download: ML20094N346 (2)

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W3K84-1778 Q-3-A35.07 ag@20MM i Mr. John T. Collins '

Regional ~ Adatinistrator, Region IV J' U. S. Nuclear Regulatory Commission AUG I O1984 611 Ryan Plaza Drive, Suite 1000 i L 0; y

Arlington . Texas 76012

REFERENCE:

JLP&L letter W3K84-1707 dated July 25, 1984 j (

SUBJECT:

Waterford SES Unit No. 3 i Docket No. 50-382 Potentially Reportable Deficiency No. 172

" Changes to EFW Control System (EFCS) May Not Support Chapter 15 of FSAR" Final Report On June 11, 1984 a change to the EFW Control System set points was reported as PRD 172. Further evaluation indicates this condition is not considered reportabic pursuant to 10CFR50.55(e).

EVALUATION The deficiency is described as a variation in the Steam Genarator set points for the EFCS from the set points used in Combustion Engineering (CE) analysis for FSAR Chapter 15. The optimized set points were established based on Engineering judgement af ter the EFCS was finalized.

Ebasco and CE have performed an analysis of the set points, including explicit set point methodology to determine instrument inaccuracies, and found the FSAR Chapter 15 accident analysis assumptions remained valid.

Based on the above evaluation this condition is not considered reportable.

Very truly yours,

$ AAEL~$ao T. F.' errets Corporate Quality Assurance Manager

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TFG:CNil:VBR /h 0408160180 840B02 PDR ADOCK 05000302 S PDR

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.s:

6- Mr. John T. Collins-August 2, 1984 W3K84-1778 Page 2

-cc: Director Office of Inspection & Enforcement U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Director Office of Management Information and Program Control U. S. Nuclear Regulatory Commission Washington,'D.C. 20555 Mr. E. L. Blake Shaw, Pittman, Potts & Trowbridge 1800 M Street, N.W.

Washington, D.C. 20036 Mr. W. M. Stevenson Monroe & Lemann 1424 Whitney Building New Orleans, Louisiana 70130 1

Records Center '

Institute of Nuclear Power Operations 1100 circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339 Mr. W. A. Cross 7910 Woodmont Avenue Suite 1200

.Bethesda, Maryland 20814 O '. -. - - - __

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