05000348/LER-1979-060-03, /03L-0:on 791202,while Moving from Mode 1 to 2, Containment Pressure Hi-1 & Hi-2 Trip Status Lights for One Channel Energized on Mcb W/Normal Readings on Containment Pressure Indicators.Caused by Comparator Card Failure

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/03L-0:on 791202,while Moving from Mode 1 to 2, Containment Pressure Hi-1 & Hi-2 Trip Status Lights for One Channel Energized on Mcb W/Normal Readings on Containment Pressure Indicators.Caused by Comparator Card Failure
ML19256G547
Person / Time
Site: Farley Southern Nuclear icon.png
Issue date: 12/28/1979
From: Hairston W
ALABAMA POWER CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19256G544 List:
References
LER-79-060-03L, LER-79-60-3L, NUDOCS 7912310451
Download: ML19256G547 (1)


LER-1979-060, /03L-0:on 791202,while Moving from Mode 1 to 2, Containment Pressure Hi-1 & Hi-2 Trip Status Lights for One Channel Energized on Mcb W/Normal Readings on Containment Pressure Indicators.Caused by Comparator Card Failure
Event date:
Report date:
3481979060R03 - NRC Website

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'/b HLPORT DAT E 11J EVENT DESCniPTION AND PROnAHLL CONSCOUCNCES l o l 2 ] lAt 0400 on 12/2/79, while taking the Unit from Mode 1 to Mode 2, the reactor operator l.

for one channel gnoticed containment pressure Hi-1 and 111-2 trip status lights / energized on the MCB with l o i3 gnormal readings on all four containment pressure indicators.

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gjaj gand three operable containment pressure channels for containment pressure Hi-2.

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general public were not affected. No similar occurrences were reported.

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