ML19256G170

LER 79-091/03L-0:on 791201,seal Staging Flow High Annunciator Was Received on Recirculation Pump 1B & Drywell Floor Drain Pump Started Pumping.Caused by Excessive Packing Leakage of Recirculation Pump 1B Suction

ML19256G170
Person / Time
Site:	Brunswick
Issue date:	12/20/1979
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19256G161	List: ML19256G160 ML19256G170
References
LER-79-091-03L, LER-79-91-3L, NUDOCS 7912270551
Download: ML19256G170 (1)

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LICENSEE EVENT REPORT (PLE ASE PRINT OR TYPE ALL REQUIRED INFORMATION)

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7 8 9 LICENSEE CODE CON'T 3[,y L @l0l5l01-10 3 l 2 l 5 @l69 112EVENT l1 l 7 l 9 @ 1121210 l 7 l 9dol@

o i 68 l 0 DATE T4 75 REPORT DATE 7 8 60 El DCCKET NOV8ER EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h o 2 [,During normal plant operation, the " Seal Staginz Flow High" annunciator was received i Io l3l l on.13 recirculation pump and the drvwell floor drain cumps started pu=oing. Drywell I o 4 l pressure increased to a maximum of 0.44 osic, drvwell averace temoerature increased I o s I from 121.4*F to 124.8S*F, and drvwell leakas;e was calculated at 7.4 epm for a twenty- l l

0 6 l four hour ceriod. A normal reactor shutdown was commenced.

0 7 i Technical Soecification 3.4.3.2, 6.9.1.9b i o a i s 3 9 CCYP ;A'aE SV'T E M CALSE CALSE OLCE C00E SLSC00E 00Y'0NENT J0DE sus:OOE sL30 CE 7

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23 24 u u 2 n v n u e CAUSE CESCRIPTION AND CCPRECTIVE ACrtCNS h i o l A drvwell entry revealed that the 13 recirculation pump suction and discharge valves l 11 Iil Ihad excessive cackine leakace caused bv water and/or steam saturatine the oackin: and I

,  ;, Imaking it soft and pliable. The first and third states were repacked and the packin l i 3 l gland was adjusted on both valves to stop the leal ace. This is considered an isolatedt i 4 l event and no further action is required. t So

> 8 9 F ACILITY 3 VETHOD OF STATUS  % POWER oTHERSTATUS DISCOV E RY DISCOVERY CESCRIPTION 32 N/A Operator Surveillance l i t, W@ l 0 l 8 l 0 l@l" ': "

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45 60 PERSONNEL EEPOSURES NUV8 E R TYPE C ESCRIPTioN N/A l

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N/A 7912270 *

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A- f' in i l i c:em TY- PHONE: 010 - 457 0521 2, NAMF OF PAEPARER I