05000311/LER-1982-126-03, /03L-0:on 821019,analysis of Sample Charging Pump 21 Lube Oil Revealed That water-oil Mixture Existed. Caused by Lube Oil Cooler Failure Due to Excessive Corrosion & Erosion.Cooler Replaced

/03L-0:on 821019,analysis of Sample Charging Pump 21 Lube Oil Revealed That water-oil Mixture Existed. Caused by Lube Oil Cooler Failure Due to Excessive Corrosion & Erosion.Cooler Replaced

ML20028B389
Person / Time
Site:	Salem
Issue date:	11/03/1982
From:	Frahm R Public Service Enterprise Group
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20028B368	List: 05000311/LER-1982-126, Forwards LER 82-126/03L-0.Detailed Event Analysis Encl 05000311/LER-1982-126-03, /03L-0:on 821019,analysis of Sample Charging Pump 21 Lube Oil Revealed That water-oil Mixture Existed. Caused by Lube Oil Cooler Failure Due to Excessive Corrosion & Erosion.Cooler Replaced
References
LER-82-126-03L, LER-82-126-3L, NUDOCS 8211300341
Download: ML20028B389 (1)

LER-1982-126, /03L-0:on 821019,analysis of Sample Charging Pump 21 Lube Oil Revealed That water-oil Mixture Existed. Caused by Lube Oil Cooler Failure Due to Excessive Corrosion & Erosion.Cooler Replaced

Event date:
Report date:
3111982126R03 - NRC Website

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E' ##8 LICENSEE EVENT REPORT CONT,h L SLOCK:

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60 81 oOCKET NuMSER 88 69 EVENT oATE 74 76 REPORT oATE 80 EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h o 2 l On October 19, 1982, during routine operation, analysis of a sample of No. 21 l

l Charging Pump lube bil revealed that a water-oil mixture existed.

Investigation l

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g cooler.

The pump was declared inoperable and Action Statement 3.5.2.a was entered.

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22 Charging Pump was operable, providing emergency core cooling capabilities.

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l The event constituted operation in a degraded mode in accordance with Technical l

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Specification 6.9.1.9.b.

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33 34 3b 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h l The lube oil cooler had failed due to excessive corrosion and erosion which resulted l

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g from silt in the service water and the use of dissimilar metals in the system. The l

cooler was replaced, the pump was satisfactorily tested, and the action statement was l

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terminated. A new design cooler will be installed when parts become available.

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