ML19269D661

Forwards LERs 79-068/3L-0,79-069/03L-0 & 79-071/03L-0

ML19269D661
Person / Time
Site:	North Anna
Issue date:	06/06/1979
From:	Stallings C VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19269D662	List: 05000338/LER-1979-068-03, /03L-0 on 790508:radiation Monitoring Channels RM-RMS-159 & RM-RMS 160 Were Declared Inoperable Due to Failure of Sample Pumps 1-RM-RMS 159A & 159B.Caused by Solenoid Valve Coil Shoring Out.Coil Replaced 05000338/LER-1979-069-03, /03L-0 on 790508:during Load Transient,Axial Flux Difference Deviated Greater than 5% from Target for Four Minutes.Caused by Rapid Load Reduction of 100 MW Due to Loss of Drain Pump A.Control Rods Withdrawn 05000338/LER-1979-071-03, /03L-0 on 790511:during Periodic Test at Steady State Operation,Low Head Safety Injection Pump 1A Discharge Valve Failed to Open within 40-s.Cause Unknown.Valve Manually Opened,Reseated & Returned to Operation ML19269D661
References
451, NUDOCS 7906110198
Download: ML19269D661 (1)

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VIItOINIA ELECT 1 TIC AND POWEIt CO M PANY HIczinown,VzuorwrA 20201 June 6, 1979 Mr. James P. O'Reilly, Director Serial No. 451 Office of Inspection and Enforcement P0/FHT: baw U. S. Nuclear Re alatory Commission Docket No. 50-338 Region II 101 Marietta Street, Suite 3100 License No. NPF-4 Atlanta, Georgia 30303

Dear Mr. O'Reilly:

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Pursuant to North Anna Power Station Technical Specifications, the Virginia Electric and Power Company hereby submits the following Licensee Event Reports for North Anna Unit No. 1.

Report No.

Applicable Technical Specification LER 79-068/03L-0 6.9.1.9.b.

LER 79-069/03L-0 6.9.1.9.b.

LER 79-071/03L-0 6.9.1.9.b.

'Ihese reports have been reviewed by the Station Nuclear Safety and Operating Committee and will be placed on the agenda for the next meeting of the System Nuclear Safety and Operating Committee.

Very truly yours, Q

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u C. M. Stal. lings Vice President-Power Supply and Production Operations Enclosures (3 copies) cc:

Mr. John G. Davis, Acting Director (30 copies)

Office of Inspection and Enforcement Mr. William G. Mcdonald, Director (3 copies)

Office of Management Informaticn and Program Contre'.

2254 244 790611oq g

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