ML20039F317

LER 81-016/03L-0:on 811202,channel C Pump Power Monitor Failed to Send Trip Signal During Online Testing.Caused by Failed 1C on Monitor Logic Board.Board Replaced & Monitor Tested Satisfactorily

ML20039F317
Person / Time
Site:	Oconee
Issue date:	12/31/1981
From:	Kutzer J DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20039F310	List: ML20039F309 ML20039F317
References
LER-81-016-03L-01, LER-81-16-3L-1, NUDOCS 8201120335
Download: ML20039F317 (1)

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i 5 89 61 ant.asste eS et EvamT 3 ATE . mePCAT 3 ATE 40 EVENT OMirTtCfp AMC paceagLg CcpCscWENCa$ le 1242, l on December 2.1981, while performing on-line testing, the Channel C Pump f2eaf ! Power Monitor failed to send a trin sicnal. The RPS in reqisired to have f

o . .l i t-hree channels operable. Channels A, B, and D were operable at the time of  ;

g,,,_y the Channel C failure; thus, the health and safety of the public were not .1 y:. ,Laffected by this incident. ,

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(,,o;1The apparent cause of this incident was a failed IC on the logic board of the ;

, Channel C Pump Power Monitor. The logic board was replaced, and the Chantiel C,

,,,,g Pump Power Monitor was tested satisfactorily and returned to service. ,

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