ML20052G735

LER 82-009/03L-0:on 820410,w/unit at Hot Shutdown Prior to Scheduled Refueling Outage,Both Source Range Nuclear Instruments Were Inoperable.Caused by Accumulation of Water in Instrument Canisters.Spare Detector Installed

ML20052G735
Person / Time
Site:	Kewaunee
Issue date:	05/10/1982
From:	Smoker C WISCONSIN PUBLIC SERVICE CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20052G715	List: ML20052G714 ML20052G725 ML20052G735
References
LER-82-009-03L, LER-82-9-3L, NUDOCS 8205180617
Download: ML20052G735 (1)

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[o 121 l With the unit at hot-shutdown prior to a scheduled refuelinq outane (normal operatinq l j o lai l pressure and temperature), both source range nuclear instruments were inoperable. l

[ola1[ This is an LCO per T.S. Table 3.5-2; at least one of two source range channels shall I l.o I s l I be operable, or achieve and maintain hot shutdown. This is renortable per T.S. 1

[ O I r, i l 6.9.2.b.(2). Since hot shutdown was maintained, there was no effect on public safety I lo I7I I or olant operation. I I o Ih l I I

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44 CAUSE DESCHIPTIOfJ AfJD CORRECTIVE ACTIONS h lil0ll The source range detector failures are attributed to an accumulation of water in I

[TTr] I the instrument cannisters. A spare detector was installed until replacement of the I g,j7gl normal channel detectors was made. Investigation is continuing to determine the l gl necessary corrective action. l li l41 I l

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NAME OF PREPARER C*S* OI PHONE: (414) 388-2560 Ext. 340