ML19347B990

First of Five LERs 80-021/03L-0:on 800901,during Main Steam Line Local Rate Test,Valves AO 1-0203-2A,AO 1-0203-1B, AO 1-0203-2B,AO 1-0203-1D & AO 1-0203-2D Found to Have Leakage Rates in Excess of Tech Specs.Cause Not Stated

ML19347B990
Person / Time
Site:	Quad Cities
Issue date:	09/19/1980
From:	Tubbs R COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19347B987	List: ML19347B986 ML19347B990 ML19347B992 ML19347B994 ML19347B997 ML19347B999
References
LER-80-021-03L-03, LER-80-21-3L-3, NUDOCS 8010160352
Download: ML19347B990 (1)

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1.lCENSEE EVENT REPORT (PLEASE PRINT OR TYPE ALL REQUIREO INFORMATIONI CONTROL BLOCK: l 1

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7 a 60 61 DOCKET NUMBER 68 69 EV ENT D ATE EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h goi:l l While performing the Main Steam Line Local Leak Rate Test, valves A0 1-0203-2A, A0 [

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l-0203-1B, A0 1-0203-2B, A0 1-0203-10 and A0 1-0203-20 were found to have leakage l g3,2; ;

rates in excess of the 11.5 SCFH allowable limit as specified by Technical l Specification 4.7.A.2.1.c. All valves will be repaired and tested before Unit l

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43 44 47 33 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h l., ll Not all valves have been repaired as of this date. A sucolemental report will l l, j l be sent upon completion of all testing and when all corrective actions reaardino I these valves have been completed. l

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