05000321/LER-1981-014-03, /03L-0:on 810304,isolation Valves RHR Pump Suction E11-F004B,F030B,F065B,RHR Test Line E11-F024A,F027A,F028A, E11-F024B,F027B,F028B & HPCI Exhaust E41-F021,F049 Found Leaking.Cause Unknown.Valves Will Be Repaired

/03L-0:on 810304,isolation Valves RHR Pump Suction E11-F004B,F030B,F065B,RHR Test Line E11-F024A,F027A,F028A, E11-F024B,F027B,F028B & HPCI Exhaust E41-F021,F049 Found Leaking.Cause Unknown.Valves Will Be Repaired

ML20003E453
Person / Time
Site:	Hatch
Issue date:	03/26/1981
From:	Coggin C GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20003E452	List: 05000321/LER-1981-014, Forwards LER 81-014/03L-0 05000321/LER-1981-014-03, /03L-0:on 810304,isolation Valves RHR Pump Suction E11-F004B,F030B,F065B,RHR Test Line E11-F024A,F027A,F028A, E11-F024B,F027B,F028B & HPCI Exhaust E41-F021,F049 Found Leaking.Cause Unknown.Valves Will Be Repaired
References
LER-81-014-03L, LER-81-14-3L, NUDOCS 8104030495
Download: ML20003E453 (2)

LER-1981-014, /03L-0:on 810304,isolation Valves RHR Pump Suction E11-F004B,F030B,F065B,RHR Test Line E11-F024A,F027A,F028A, E11-F024B,F027B,F028B & HPCI Exhaust E41-F021,F049 Found Leaking.Cause Unknown.Valves Will Be Repaired

Event date:
Report date:
3211981014R03 - NRC Website

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60 61 DOCKET Nuve ER 68 69 EVENT OATE 14 7b REPOR T DATE 80 EVENT DESCalPTION AND PROBABLE CONSEQUENCES h l 0 l 21 10n 2-28-81, wi th Uni t 1 shutdown for a refuelina/ torus modification out-1 l0l3llage LLRTs of the following isolation valves were performed:

RHR test i

lline E11-F024A&B, E 11 - F0 2'8 A & B ; RHR pump suction E11-F0048, F030B. F0658:I O 4 O s IHPCI exhaust E41-F021 and F049.

On 3-4-81, the LLRT coordinator re-1 Iviewed the data sheets, and it was determined that the valves were leak-l O s 10171 ling in excess of the.60 La allowable per Tech Specs 4.7.A.2.G.

This isi IOlR1 la repetitive occurrence - refer to LER 50-321/1981-016.

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CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h Rhe cause of the valves' leakino is unknown at the present time; an I

i O i'i ITl li nves ti ga t i on is underway.

The valves will be repaired and successfullyI l retested prior to startup following the outage.

An update report will l

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NAME OF PREPARER C. I Coggin. SUDt. Plt. Fng. Serv, pnonc:_912-367-7851 s*

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LER f:

50-321/1981-014' Licensce:

Georgia Power Company Facility Name:

Edwin I. Ilatch Docket f:

50-321

Narrative

Report for LER-50-321/1981-014 On 2-28-81, with Unit 1 shutdown for a refueling / torus modif-ication outage, LLRTs were performed per procedure HNP-1-3952,

" Primary Containment Periodic-Type B

and Type C

Leakage Tests", for.the following isolation valves:

RHR pump suction E11~- F0 04 B,

F030B, F065B; RHR test line E11-F024A,

F027A, F028A;. RHR - testa line E11-F024B,

F027B, F028B; ilPCI exhaust

- E41-F021 and F049.

On 3-4-81, the LLRT coordinator reviewed the data sheets, and

- it was determined that the valves were leaking in excess of t:

the:.60- La. allowable Icakage. per Tech Specs 4.7.A.2.G (as

found. leakages - test volume could not be pressurized).

This is a - repetitive occurrence refer to LER 50-321/1981-016.

There were no-effects-on public health or safety.

The cause of the valves' leaking is unknown at the present time; an-investigation is underway.

The valves will be repaired and successfully retested prior. to startup following

- the outage.

An update report will be submitted.

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