ML19341B276

LER 80-090/03L-0:on 801101,during Routine Surveillance, Containment Atmospheric Control Monitor 1-CAC-AT-1259 Was Observed Indicating Downscale.Caused by Instrument Drift. Monitor Recalibr Satisfactorily

ML19341B276
Person / Time
Site:	Brunswick
Issue date:	12/01/1980
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19341B273	List: ML19341B272 ML19341B276
References
LER-80-090-03L-01, LER-80-90-3L-1, NUDOCS 8101300572
Download: ML19341B276 (2)

Text

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UCENSEE EVENT REPORT (PLEASE PRINT OR TYPE ALL REQUIRED INPORMATION)

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lh InlclalElP!1lhl50 l 0 l - l 0 l 0 l 0 l 0 l 0 l- l 0 l 0 l@l 14 LICENSE NUMSER 25 26 4 l TYPE LICENSE 1 lJo1 l S7i lLATl l@LI 68 l@

7 8 9 LICENSEE CODE 1 CON'T l0Iil i 8 Nu'R$60 l L @l 0l 5DOCKET 61 l 0 lNUMSER

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EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h l o 121 l During routine surveillance, Containment Atmospheric Control Monitor, I o 13 i l 1-CAC-AT-1259, was observed indicating downseale. Similar eve.sts involving g l o 14 l l this monitor have been reported in the past. This event did not affect the l l o I s i I health or safety of the public. l f

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l0l7l l Technical. Specifications 3.6.6.4, 6.9.1.9b l l o Ia t l 80 7 8 9 0E OE SU C E COMPONENT CODE SUSCODE S E le L9_j 7 8 l Sl El@ l Bl@ l Al@ l Il N l S l T l R l U l@ lY l@ ] @

9 10 11 12 13 18 19 20 SEQUENTIAL CCCURRENCE REPORT REVl51oM EVENT YEAR REPORT NO. CODE TYPE NO.

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41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 27 l

l1 I o I l The monitor indicated downseale because it was out of calibration due to instrument l,ij__J l drift The monitor was then recalibrated and returned to satisfactorv operation. I l

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, SA  % POWER OTHER STATUS is RY DISCOVERY DESCRIPTION l1 I s l l E l@ l 0l 9 l 9 l@l NA l l A l@l Routine Surveillance l A VITY CC TENT i RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE NA l NA l l 1i Ie I W @ W@l l PERSONNEL EXPOSURES NUMeER TYPE oESCRiPTiON @

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ISSUED DE CRIPTION LuSJ LNJ@l l llllll1llllllj 68 69 80 = ;

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NAME OF PREPARER 810180n Q Q

LER ATTACHMENT - RO # l-80-90 Facility: BSEP Unit No. 1 Event Date: 11-1-80 Due to a history of simfiar problems involving this type of monitor 4

a plant modification has been developed to replace these monitors I with more reliable monitors during the upcoming 1981 refueling outage.

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