05000338/LER-1979-092-03, /03L-0:on 790731,noted That Weekly Surveillance on 790706 of Dc Distribution Sys Was Performed W/O Latest Procedure Revision.Caused by Delay in Procedure Distribution.Procedure Has Since Been Distributed

/03L-0:on 790731,noted That Weekly Surveillance on 790706 of Dc Distribution Sys Was Performed W/O Latest Procedure Revision.Caused by Delay in Procedure Distribution.Procedure Has Since Been Distributed

ML19207C077
Person / Time
Site:	North Anna
Issue date:	08/30/1979
From:	Cartwright W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19207C073	List: 05000338/LER-1979-092, Forwards LER 79-092/03L-0 05000338/LER-1979-092-03, /03L-0:on 790731,noted That Weekly Surveillance on 790706 of Dc Distribution Sys Was Performed W/O Latest Procedure Revision.Caused by Delay in Procedure Distribution.Procedure Has Since Been Distributed
References
LER-79-092-03L, LER-79-92-3L, NUDOCS 7909060413
Download: ML19207C077 (2)

LER-1979-092, /03L-0:on 790731,noted That Weekly Surveillance on 790706 of Dc Distribution Sys Was Performed W/O Latest Procedure Revision.Caused by Delay in Procedure Distribution.Procedure Has Since Been Distributed

Event date:
Report date:
3381979092R03 - NRC Website

text

NRC FORM 366 U. S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CON TROL BLOCK: l l

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8 60 b1 DOCnET NUVdER fd 69 EVENT DATE 14 13 HEPORT DAT E E' O EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES Oio l0n July 31, 1979, Vepco QC discovered that the weekly surveillance of the D.C.

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distribution systems (1-PT-85) was performed on July 6,1979 without using the latest I

,o ;3 j l procedure revision which checks the condition of the diesel generator batteries. The l o

4 health and safety of the general public were not affected by this event.

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s i ipursuant to T.S. 6.9.1.9.c.

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40 43 42 43 44 47 CAUSE DESCRIPTION ANO CORRECTIVE ACTIONS h o i IThe cause for the error was the excessive t're ' lag from the date the revision was i

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The revision to 1-pT-95 (Pav-Si i

twas immediately typed and placed in station files for future use.

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NAME OF PRFPARER

Virginia Electric and Power Company North Anna Power Station, Unit #1

Attachment:

Page 1 of 1 Docket No. 50-338 Report No. LER 79-092/03L-0

Description of Event

On July 31, 1979, Vepco Quality Control discovered that on July 6, 1979, the weekly surveillance of the D.C. distribution systems (1-PT-85) was performed utilizing Revision 4 of the procedure instead of the latest revision (Rev. 5).

Revision 5 to 1-PT-85 which added the diesel generator battery surveillance program to the periodic test, was approved on June 28, 1979.

Since 1-PT-85 was performed on Juiy 6,1979, using Revision 4 instead of Revision 5, the diesel generator battery surveillance program was missed.

Probable Consequences of Occurrence The consequences of this event were limited because during the previous week on June 28,1979,1-PT-85 was performed satisfactorily using a handwritten copy of Revision 5.

The diesel generator batteries were also tested using Revision 5 on July 13, July 20, and July 28, 1979 with satisfactory results.

Therefore, the health and safety of the general pubife were not affected by this occurrence. There are no generic implications associated with this event.

Cause

The revised copy of 1-PT-85 (Rev. 5) was still in typing and had not been placed in station files by the time the test was performed on July 6, 1979.

Immediate Corrective Action

Revision 5 to 1-PT-85 was immediately typed and placed in station files for future use.

Scheduled Corrective Action No scheduled corrective action required.

Actions Taken to Prevent Recurrence An administrative procedure is being written to provide for the control of procedures which are in the process of being revised. This administrative procedure will make it mandatory for markers to be placed in the appropriate procedure files informing personnel that the procedure in question is being revised and that the latest revision should be used when performing the test.

Priorities will be established for administrative action.

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