05000366/LER-1980-148-03, /03L-0:on 801101,torus Water Level Decreased to 145.8 Inches,Below 146-inch Tech Spec 3.6.2.1.c Limit.Caused by Leaking Discharge Check Valve 2E21-F003A.Torus Level Restored & Maint Request Written

/03L-0:on 801101,torus Water Level Decreased to 145.8 Inches,Below 146-inch Tech Spec 3.6.2.1.c Limit.Caused by Leaking Discharge Check Valve 2E21-F003A.Torus Level Restored & Maint Request Written

ML19351D872
Person / Time
Site:	Hatch
Issue date:	11/13/1980
From:	Baxley S GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19351D869	List: 05000366/LER-1980-148, Forwards LER 80-148/03L-0 05000366/LER-1980-148-03, /03L-0:on 801101,torus Water Level Decreased to 145.8 Inches,Below 146-inch Tech Spec 3.6.2.1.c Limit.Caused by Leaking Discharge Check Valve 2E21-F003A.Torus Level Restored & Maint Request Written
References
LER-80-148-03L, LER-80-148-3L, NUDOCS 8011200288
Download: ML19351D872 (2)

LER-1980-148, /03L-0:on 801101,torus Water Level Decreased to 145.8 Inches,Below 146-inch Tech Spec 3.6.2.1.c Limit.Caused by Leaking Discharge Check Valve 2E21-F003A.Torus Level Restored & Maint Request Written

Event date:
Report date:
3661980148R03 - NRC Website

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60 b1 DOCKET NUMBER f3 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES O1o ro [Tl l Torus water level decreased to 145.8 inches which was below the 146 inch limit re-j iO i3 i ; quired by Tech. Specs 3.6.2.1.c.

There were no effects upon public health and iO i4 l l safety due to this event. There have been no previous events of this nature l

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40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS li l o l l While draining "A" core spray suction piping for local leak rate test, the torus l

Ii li i l level decreased to 145.8 inches due to the discharge check valve 2E21-F003A leakina 1

ii i,i l by during the draining. Torus level was restored to greater than 146 and a Mainte-l lilai l nance Request #2-80-4344 was written on 2E21-F003A.

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Licensee:

Georgia Power Company Facility Name:

Edwin I. Hatch Docket No.:

50-366

Narrative

Report for LER 50-366/1980-148 While draining the "A" Core Spray suction piping in preparation for n -forming the Local Leak Rate Test (LLRT) the torus level decreased

.o 145.8 inches. Check valve 2E21-F003A was being used as a boundary valve and the jockey pump system was maintaining pressure downstream of the check valve. The check valve 2E21-F003A leaked by the seat so with drain valve open, the torus level was decreased to 145.8 inches.

Draining was stopped and torus level restored to within Tech. Specs.

limit. Maintenance Request No. 2-80-4344 was initiated to repair 2E21-F003A.

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