ML19350E220

LER 81-025/03L-0:on 810518,during Plant Tour by Operations Personnel,Low Pressure Leg of Isolation Condenser Level Indication Found Valved Out.Probably Caused by Valve Not Being Reopened After Sampling.Valve Opened

ML19350E220
Person / Time
Site:	Dresden
Issue date:	06/08/1981
From:	Zirwas K COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19350E217	List: ML19350E216 ML19350E220
References
LER-81-025-03L, LER-81-25-3L, NUDOCS 8106170176
Download: ML19350E220 (3)

Text

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NRC FORM 308* -- -- -- --

U.S. NUCLEAR REGut.hTORY COMMISSI!N .

mm-LICENSEE EVENT REPORT O CoNTaoL stoCo l l l l 1 I l <ptE4sE paint oR TveE au. aEcuinEO INeonMariom I e@

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lolIl 7 8 80 81 DOCKET NuusER 68 09 EVENT QATE 74 REPORT DATE 60 EVENT DESCAleTION AND PROBA8LE CONSEQUENCES h 10l2l l During a plant tour by operations personnel, the low pressure leg of the Isolation I g l Condenser Level Indication was found valved out, thereby giving improper level indica- t goit, [cion. This event was of minimal safety significance since the low level alarm was l l o i s t I still operable. This is the first occurrence of this type for the isolation condenser. l l o t61 l l 1 o 6 71 I l

t o tals,l so I

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9 10 11 12 18 19 13

_ SEQUENTIAL occ3mmENCE REPcRT REV8sioN gn EVENT YEAR REPORT No. CooE TYPE No.

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33 34 35 3t. 37 40 el 42 43 44 -

CAuSE DESCMIPTION AND CORRECTIVE ACTICNS h gilol lIt is suspected that the valve was not reopened after sampling. The valve was opened l

,,,,,land no change in isolation condenser water level was observed. Valve =anipulation I

requirements were discussed with the sampling personnel. No further action deemed l

)il3l lnecessary. g l i ! 41 I I 7 a a 80 A 4 PoWEM oTHER STATUS Cisc Y DISCoVEMY DEsCRIPTICN I1 15 l l E l@ l 0l 7 l 7 lgl 3/A l J gl Operator Observation l 7

a4 gg i2 n 44 4s de so l1 l6l l l l l N/A l

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• ENsoNNEi.'ieuu' des NuueEm l i l a l l 0 l 0 l 0 j@loEscRimcN@ N/A l 7 8 9 11 12 40

'#'E ' "fa'a# '" @ N/A l lgl g gl l_

7 4 9 10 80 IMcN

• 12 f o i l N fhl E N/A i ll ll llltll ll lj 7 s 9 10 68 69 80. .

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,,E,,,E, K. Zirvas

, scut 942-2920 Ext. 422 o 3

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