ML19323D368

LER 80-032/03L-0:on 800415,charging Pumps Taken Out of Svc for Maint on Valve 62-526.Valve Was Leaking & Needed Repacking.Caused by Improper Graylock Packing on Manual Valve 62-526.Valve Dismantled,Repaired & Returned to Svc

ML19323D368
Person / Time
Site:	Sequoyah
Issue date:	05/14/1980
From:	Record D TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19323D365	List: ML19323D364 ML19323D368
References
LER-80-032-03L, LER-80-32-3L, NUDOCS 8005210492
Download: ML19323D368 (2)

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NRC FORM 366 U.S. NUCLEAR RECUL ATORY COMMI55tCf4 tr.111 LICENSEE EVENT REPORT EXHIBIT A CONTROL DLOCK: l I I I I I l (PLE ASE PRINT OR TYl'E ALL f EQUIRED INFORMATIONI i e@

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[7T71 i All charging pumps were taken out of service so that maintenance could I,

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iOi3, i be performed -on v~alve' 6'2-526." The valv'e was. leaking and needed repacking.j

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O l The ' system design is such that the va'1ve cannot be isolated if either I

O s i centrifugal charging pump is operating. This caused entry into I 10 it, i l LCO 3.1.2.1 and LCO 3.1.2.3 ACTION. I.' TION statements are'beine comolied ;

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CAUSE DESCRIPTION AND CORREC ftVE ACTIONS (23)

! i o i The graylock packing was improperly installed on manual valve 62-526

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LER SUFFLD! ENTAL INFORMATION SQRO-50-327/ 8032 Technical Specifications Involved 3.1.2.1 & 3.1.2.3 I

Reported Under Technical Specification 6.9.1.13.b Date of Occurrence: 4/15/80 Identification and Description of Occurrence:

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All charging pumps were taken out of service so that maintenance could 1

be performed on valve 62-526. The valve was leaking and needed repacking.

The system design is such that the valva cannot be isolated if either centrifugal charging pump is operating.

Conditions Prior to Occurrence:

Mode 5 Apparent Cause of Occurrence:

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i Old or defective packing resulted in valve packing leak when the valve was first operated.

Analysis of Occurrence:

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None Corrective Action:

Valve repacked.

Failure Data:

None

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