05000311/LER-1981-056-03, /03L-0:on 810708,auxiliary Alarm Annunciator Was Malfunctioning.Caused by Failure of Alarm Input Cards.Series of RA848A Alarm Input Cards Replaced

/03L-0:on 810708,auxiliary Alarm Annunciator Was Malfunctioning.Caused by Failure of Alarm Input Cards.Series of RA848A Alarm Input Cards Replaced

ML20010B245
Person / Time
Site:	Salem
Issue date:	08/06/1981
From:	Dickey F Public Service Enterprise Group
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20010B242	List: 05000311/LER-1981-056, Forwards LER 81-056/03L-0.Detailed Event Analysis Encl 05000311/LER-1981-056-03, /03L-0:on 810708,auxiliary Alarm Annunciator Was Malfunctioning.Caused by Failure of Alarm Input Cards.Series of RA848A Alarm Input Cards Replaced
References
LER-81-056-03L-01, LER-81-56-3L-1, NUDOCS 8108140261
Download: ML20010B245 (1)

LER-1981-056, /03L-0:on 810708,auxiliary Alarm Annunciator Was Malfunctioning.Caused by Failure of Alarm Input Cards.Series of RA848A Alarm Input Cards Replaced

Event date:
Report date:
3111981056R03 - NRC Website

text

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' EVENT DESCRIPTION AND PROB ABLk CONSEQUENCES h I o 12 l l At 1140 hours0.0132 days <br />0.317 hours <br />0.00188 weeks <br />4.3377e-4 months <br />, July 8, 1981, the auxiliary alarm annunciator was malfunctioning.

j I o 13 I l Since the Containment Sump Lovel Monitoring System was monitored by the auxiliary j

["o""T71 I alarm annunciator, the Containment Sump Level Monitoring System S'as declared j

1o 1el I inoperable and action statement 3.4.7.1.b was entered.

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u CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h l i l ~ ; l Component failure. The annunciator was intperable due to the failure of alarm input j g l cards and was removed from service. At 2232 hours0.0258 days <br />0.62 hours <br />0.00369 weeks <br />8.49276e-4 months <br />, July 9, 1981, Unit 2 entered J

g l mode 5 and action statement 3.4.7.1.b was terminated due to inapplicabilsty in mode i i 3 l 5.

Subsequently, a series of RA848A alarm input cards were replaced. The typewriteri l was returned to service and tested satisfactorily.

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