05000338/LER-1979-059-03, /03L-0 on 790501:fire Protection Hose Stations in Auxiliary Bldg Were Inoperable for 10-h W/O Backup Sys of Firewatch Established.Caused by Isolation of Auxiliary Bldg for Maint Taking Longer than Initially Estimated

/03L-0 on 790501:fire Protection Hose Stations in Auxiliary Bldg Were Inoperable for 10-h W/O Backup Sys of Firewatch Established.Caused by Isolation of Auxiliary Bldg for Maint Taking Longer than Initially Estimated

ML19263E200
Person / Time
Site:	North Anna
Issue date:	05/31/1979
From:	Cartwright W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19263E199	List: 05000338/LER-1979-059-03, /03L-0 on 790501:fire Protection Hose Stations in Auxiliary Bldg Were Inoperable for 10-h W/O Backup Sys of Firewatch Established.Caused by Isolation of Auxiliary Bldg for Maint Taking Longer than Initially Estimated 05000338/LER-1979-060-03, /03L-0 on 790502:during Routine Startup Operation, Axial Flux Difference Deviated Greater than 5% from Target. Caused by Power Increasing Too Rapidly During Startup Operation 05000338/LER-1979-063-03, /03L-0 on 790501:during Startup Operation,Rods A06,F08,K08,H10,C07,C09,E05 & L11 Observed to Have 12-step Disagreement Between Various Rod Position Indications.Caused by Electronic Drift in RPI Circuitry.Rpis Recalibrated ML19263E198
References
LER-79-059-03L, NUDOCS 7906050295
Download: ML19263E200 (1)

LER-1979-059, /03L-0 on 790501:fire Protection Hose Stations in Auxiliary Bldg Were Inoperable for 10-h W/O Backup Sys of Firewatch Established.Caused by Isolation of Auxiliary Bldg for Maint Taking Longer than Initially Estimated

Event date:
Report date:
3381979059R03 - NRC Website

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60 61 DOCKET NUVBER 68 69 EVENT DATE 74 75 HEPOR T DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h l Fire protection hose stations in the Auxiliary Building were inoperable for 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br />

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[with no backup system or firewatch established. This event did not jeopardize the

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jhealth and safety of the general public.

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Since this was a personnel error, it is applicable to Unit 2.

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[ Fire protection hose stations in Auxiliarv Building were isolate 3 for maintenance.

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