ML19347B997

Fourth of Five LERs 80-021/03L-0:on 800903,during Local Leak Rate Test of drywell-suppression Chamber Vent Exhaust,Vol Bounded by AO 1-1601-23,24,60,61,62 & 63 Found to Have Excessive Leakage.Valve AO 1-1601-23 Suspected Leaking

ML19347B997
Person / Time
Site:	Quad Cities
Issue date:	09/22/1980
From:	Kehret D 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-06, LER-80-21-3L-6, NUDOCS 8010160371
Download: ML19347B997 (1)

Text

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• LICENSEE E"ENT REPORT CONTROL BLOCK: l i

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(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 10 l 8119 l I ! LICENSEE 7

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7 3 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 7S REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h 1 o l 21 l While performing Local Leak Rate Test of the Drywell-Suppression Chamber Vent l

,o,3,  ; Exhaust, the volume bounded by A0 1-1601-23, 24, 60, 61, 62 and 63 was found to have l lo l41 l a leabge of 125.98 scfh. This is in excess of the 18.36 scfh allowable limit for l loisl I any one valve as specified by Technical Specification 4.7.2.i. [

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Z lg 37 40 41 l42 Y lQ l43N l@ 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTICNS h lila;I Valve A0 1-1601-23 is suspected to be leaking excessively. A sucolemental reoort  !

li;il l wi11 be sent upon completion of alI testing and when alI corrective actions have 1 i,  ;;, [ been completed. I liial I  !

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