05000289/LER-1979-011-03, /03L-0 on 790405:leaks Noted in Spent Fuel Pool Cooling Sys Piping.Caused by Intergranular Stress Corrosion Cracking.Areas of Leakage Isolated;Stress Analyses Will Be Performed

/03L-0 on 790405:leaks Noted in Spent Fuel Pool Cooling Sys Piping.Caused by Intergranular Stress Corrosion Cracking.Areas of Leakage Isolated;Stress Analyses Will Be Performed

ML19305A444
Person / Time
Site:	Crane
Issue date:	05/16/1979
From:	Mitchell D METROPOLITAN EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19305A441	List: 05000289/LER-1979-011-03, /03L-0 on 790405:leaks Noted in Spent Fuel Pool Cooling Sys Piping.Caused by Intergranular Stress Corrosion Cracking.Areas of Leakage Isolated;Stress Analyses Will Be Performed
References
LER-79-011-03L-01, LER-79-11-3L-1, NUDOCS 7905290384
Download: ML19305A444 (2)

LER-1979-011, /03L-0 on 790405:leaks Noted in Spent Fuel Pool Cooling Sys Piping.Caused by Intergranular Stress Corrosion Cracking.Areas of Leakage Isolated;Stress Analyses Will Be Performed

Event date:
Report date:
2891979011R03 - NRC Website

text

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LICENSEE EVENT REPORT i

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. 60 61 DOCKET NUYSER 68 69 EVENT DATE 74 75 REPORT CATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h Io i2l l During a routine tour of the Auxiliary Building, Spent Fuel Pool Coelin? Systen j

[ol3l l piping was discovered to be leaking.

SubseOuent inspections identified an-l

[ O 141 l additional five leaks in the system piping. This event, reportable per l

.lo is ] l TS 6.9.2.B.(h), posed nc threat to the health and safety of the public.

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g,g3, g stress corrosion cracking. The areas of leakage were isolated without affecting

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,,,,, g systen operation.

'"he highly stressed areas of the system piping vill be i

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,,,,, ; radiographed, and stress analyses to verify proper pipe supporting vill be performed.;

,y, A follevup to this report vill be submitted by June 30, 1979 The follevup report _l 7-8 9

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t will include the results of the radic6raphy and stress analyces, and the schedule for repairing or replacing the piping as nececcary. The affected piping is 8", schedule LO, 3 CUSS at 55 psig/100 F borated.nter conditions.

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