ML20078R778

First Interim Significant Deficiency Rept 92 Re HPSI Sys Performance.Initially Reported on 830930.Caused by Inaccurate Test Results.Test Will Be Performed Again Beginning 831031.Next Rept by 831215

ML20078R778
Person / Time
Site:	Waterford
Issue date:	10/31/1983
From:	Gerrets T LOUISIANA POWER & LIGHT CO.
To:	Jay Collins NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
10CFR-050.55E, 10CFR-50.55E, 92, W3K83-1680, NUDOCS 8311150288
Download: ML20078R778 (3)

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Louisiama POW E R & L1G H T /Waterford 3 SES/P. O. Box B/Killona. LA 70066 USSkS SYS October 31, 1983 W3K83-1680 Q-3-A35.07.92 i

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Mr. John T. Collins Regional Administrator, Region IV k b U. S. Nuclear Regulatory Commission -(- 'y 611 Ryan Plaza Drive, Suite 1000 * * ' " - -

Arlington, Texas 76012

REFERENCE:

Telecon between W. Baldwin (LP&L) and C. Oberg (NRC) on September 30, 1983

SUBJECT:

Waterford SES Unit No. 3 Docket No. 50-382 Significant Construction Deficiency No. 92 "High Pressure Safety Injection System Performance" First Interim Report In accordance with 10CFR50.55(e), attached are two copies of the interim response to Significant Construction Deficiency No. 92, "High Pressure Safety Injection System Performance." This item was previously identified as PRD No.

127.

Very truly yours, A wD T. '. Cerrets Qua.iity Assurance Manager TFG:CNH:VBR Attachments cc: Director Office of Inspection & Enforcement U. S. Nuclear Regulatory Commission Washington, D.C. 20555 (15 copies) 8311150288 831031 PDR ADOCK 05000382 S PDR D -87n 1

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Mr. John T.-Collins October 31, 1983'

, W3K83-1680 Page-2 cc: 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 Records Center Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339 4

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INTERIM REPORT OF SIGNIFICANT CONSTRUCTION DEFICIENCY NO. 92 "HICH PRESSURE SAFETY INJECTION SYSTEM PERFORMANCE" 4

INTRODUCTION This report is submitted pursuant to 10CFR50.55(e). It describes a deficiency where the performance of the High P.ressure Safety Injection System did not meet required performance specifications. This problem is considered reportable under the requirements of 10CFR50.55(e).

i DESCRIPTION OF PROBLEM Combustion Engineering's evaluation of High Pressure Safety Injection (HPSI) pump flows measured during Emergency Core Cooling System (ECCS) testing indicated the flows were acceptable. The preoperational (pre-op) test for the HPSI system was erroneously evaluated against preliminary ECCS analysis flow assumptions and was judged acceptable.

A re-evaluation of HPSI pump delivery with the minimum delivery assumea in the small break LOCA analysis has been made. Using the pre-op test results, HPSI delivery falls short of the delivery assumed in the ECCS analysis.

SAFETY IMPLICATION This problem if left uncorrected could possibly preclude the ability of the system to perform its safety related function in an accident situation.

CORRECTIVE ACTION The pre-op test of HPSI will be performed again. The procedure has been written and approved by the Joint Test Group. The test is presently scheduled for the week of October 31, 1983. This test is scheduled to last two weeks.

CE will be present to assist and analyze data as the test progresses. Upon completion of the tert, the data will be evaluated against the ECCS analysis.

Corrective action and response details will be provided by December 15, 1983.

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