05000293/LER-1979-006-03, /03L-0 on 790206:reactor Water Conductivity Increased to 30 umho/cm2 After Placing D Condensate Demineralizer in Svc.Caused by Broken Lower Laterals & Bent Resin Inlet Line & Flange of Post Strainer

/03L-0 on 790206:reactor Water Conductivity Increased to 30 umho/cm2 After Placing D Condensate Demineralizer in Svc.Caused by Broken Lower Laterals & Bent Resin Inlet Line & Flange of Post Strainer

ML19308A283
Person / Time
Site:	Pilgrim
Issue date:	02/20/1979
From:	Fulton J BOSTON EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19308A281	List: 05000293/LER-1979-006, Forwards LER 79-006/03L-0 05000293/LER-1979-006-03, /03L-0 on 790206:reactor Water Conductivity Increased to 30 umho/cm2 After Placing D Condensate Demineralizer in Svc.Caused by Broken Lower Laterals & Bent Resin Inlet Line & Flange of Post Strainer
References
LER-79-006-03L, LER-79-6-3L, NUDOCS 7903020341
Download: ML19308A283 (1)

LER-1979-006, /03L-0 on 790206:reactor Water Conductivity Increased to 30 umho/cm2 After Placing D Condensate Demineralizer in Svc.Caused by Broken Lower Laterals & Bent Resin Inlet Line & Flange of Post Strainer

Event date:
Report date:
2931979006R03 - NRC Website

text

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• .8 69 EVENT DATE 14 75 REPORT DATE 80 EVENT DESCRIPTION AND PROUABLE CONSEQUENCES h pl On February 6, 1979, at 1530 hours0.0177 days <br />0.425 hours <br />0.00253 weeks <br />5.82165e-4 months <br />, reactor water conductivity increased to 30 l

umho/cm2 af ter placing "D" condensate demineralizer in service.

,o,3, An OPER #5 was I

g, ; initiated, reactor power was immediately reduced and "D" condensate demineralizer i

was removed from service. Reactor water conductivity was reduced to less than 10 l

g 2

ggjoyy unho/cm by 2130 hours0.0247 days <br />0.592 hours <br />0.00352 weeks <br />8.10465e-4 months <br /> and the controlled shutdown was terminated.

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CAUSE

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CODE TYPE NO.

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40 43 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h i

o l Investigation revealed that the lower laterals on "D" condo,c,to dominnr.1 N r vorn l

l i l i ] l broken, the resin inlet line was bent and the f1,-o on % nner ce*,4,n-

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• 1 IiI7Ilallowing resin to enter the reactor. The laterals were ren1, cod in Tr 4 ~1.

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, 3 g demineralizer was inspected for generic problems. No problems were discovered.

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