ML20040E599

Updated LER 81-036/03X-1:on 811107,while Performing Auto Blowdown Permissive Surveillance 287-1,pressure Switch PS3-1554E Would Not Operate at Required Pressure.Caused by Plugged Instrument Snubber.Snubber Cleaned

ML20040E599
Person / Time
Site:	Dresden
Issue date:	01/12/1982
From:	Zirwas K COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20040E591	List: ML20040E590 ML20040E599
References
LER-81-036-03X, LER-81-36-3X, NUDOCS 8202050156
Download: ML20040E599 (2)

Text

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, 1.lCENSEE EVENT REPORT Update Report. Previous Report Date:

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60 El DOCKET NUMSER 88 69 EVENT DATE 74 7s REPORT DATE 80 EVENT DESCRIPTION AND PROSABLE CONSEQUENCES h Io l2l l While performing Auto Blowdown Permissive surveillance DIS 287-1, pressure switch PS3- I

,o,3, g 1554E would not operate at required pressure (Tech. Spec. Table 3.2.2) . The health and l

,n ,,,gsafety of the general public was not endangered. 2 vent was of minimal safety signifi- l lo isl lcance since redundant pressure switches were operable. This is the first occurrence of I loI6l l this type. l lo l7I l l lotalI l

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,_ stoUENTIAL OCCURRENCE REPORT REvtsloN LE RIRo EVENT YEAR REPORT No. CoOE TYPE No.

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40 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 27 jijollThe cause of the failure was a plugged instrument snubber. The snubber was cleaned l

,,,,,land the pressure switch operated properly. DIS 287-1 will continue to be performed l'

monthly. No further action considered necessary. I 1 i 131 l l 11 141 l l 7 s 9 80 A  % POWER oTHER STATUS isCo R DiscoVERv CEsCRIPTioN NA l1 i 5 l l_EJ@ l 0l 6 l 1 l@l l lBl@l Surveillance Test l AbviTV C$ TENT (ELEAst LOCATION oF RELEASE @

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. SUPPLEMENT TO DVR DVP. NO. .

STA UNIT. YEAR N0 D- 12 , 3 . 81 74

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PART 1 l TITLE OF EVENT OCCURRED Auto Blowdown Permissive Pressure Switch 3-1554 E 11-7-81 1100 n,e nf c21 f krn H nn DATE T IfiE I REASON FOR SUPPLEMEfiTAL REPORT Correct Occurrence Date on Licensee Event Report PART 2 l .

ACCEPTANCE BY STATION REVIEW M- [ ._

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, u n ,- ntso SUPPLEMENTAL REPORT APPROVED /

AND AUTHORIZED FOR DISTRIBUTION , C0r . / [8L

.ST ON SUPERINTENDENT /

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