05000368/LER-1979-079-03, /03L-0:on 790904,containment Bldg Sump Level Indicator Was Inoperable.Caused by Loss of Power Due to Power Supply Being Inadvertently Switched Off.Power Supply Was re-energized within 13-h & Caution Cord Attached

/03L-0:on 790904,containment Bldg Sump Level Indicator Was Inoperable.Caused by Loss of Power Due to Power Supply Being Inadvertently Switched Off.Power Supply Was re-energized within 13-h & Caution Cord Attached

ML19275A286
Person / Time
Site:	Arkansas Nuclear
Issue date:	09/26/1979
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19275A279	List: 05000368/LER-1979-078-03, /03L-0:on 790828,refueling Water Tank Level Indicator Read 2.7% Less than Computer Point Indication. Caused by Current Loop Opening When Indicator Head Was Lifted.Resistor Location Corrected & Indicator Recalibr 05000368/LER-1979-079-03, /03L-0:on 790904,containment Bldg Sump Level Indicator Was Inoperable.Caused by Loss of Power Due to Power Supply Being Inadvertently Switched Off.Power Supply Was re-energized within 13-h & Caution Cord Attached ML19275A278
References
LER-79-079-03L, LER-79-79-3L, NUDOCS 7910030469
Download: ML19275A286 (1)

LER-1979-079, /03L-0:on 790904,containment Bldg Sump Level Indicator Was Inoperable.Caused by Loss of Power Due to Power Supply Being Inadvertently Switched Off.Power Supply Was re-energized within 13-h & Caution Cord Attached

Event date:
Report date:
3681979079R03 - NRC Website

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80 EVENT DESCRIPTION AND PA00 ABLE CONSEQUENCES h ITiTi' I During Node 1 operation, post-accident monitoring instrument. containmenti gI building sump level indicator, 2LI-5645-1 was inoperable. The redundant i lo I AI containment sump level indicator was operable.

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