05000325/LER-1979-091-03, /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

/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: 05000325/LER-1979-091, Forwards LER 79-091/03L-0 05000325/LER-1979-091-03, /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
References
LER-79-091-03L, LER-79-91-3L, NUDOCS 7912270551
Download: ML19256G170 (1)

LER-1979-091, /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

Event date:
Report date:
3251979091R03 - NRC Website

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LICENSEE EVENT REPORT

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60 El DCCKET NOV8ER 68 69 EVENT DATE T4 75 REPORT DATE do EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h

[,During normal plant operation, the " Seal Staginz Flow High" annunciator was received i o

2 Io l3l l on.13 recirculation pump and the drvwell floor drain cumps started pu=oing.

Drywell I l pressure increased to a maximum of 0.44 osic, drvwell averace temoerature increased I

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I from 121.4*F to 124.8S*F, and drvwell leakas;e was calculated at 7.4 epm for a twenty-l o

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

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CAUSE CESCRIPTION AND CCPRECTIVE ACrtCNS h l A drvwell entry revealed that the 13 recirculation pump suction and discharge valves l

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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 l gland was adjusted on both valves to stop the leal ace. This is considered an isolatedt i

3 l event and no further action is required.

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4 So 8 9 F ACILITY 3

VETHOD OF STATUS

% POWER oTHERSTATUS DISCOV E RY DISCOVERY CESCRIPTION 32 W@ l 0 l 8 l 0 l@l N/A l

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8 9 13 11 44 45 60 PERSONNEL EEPOSURES NUV8 E R TYPE C ESCRIPTioN [TTTl 10 I ol Ol@lZ l@l N/A l

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