ML19210C711

LER 79-086/03L-0:on 791013,during Mode 6 Operation,Increased Radiation Monitor Indication Noted on Shutdown Cooling Heat Exchanger 2E35B.Caused by Small Tube Leak in Heat Exchanger. Anomalies Will Be Analyzed

ML19210C711
Person / Time
Site:	Arkansas Nuclear
Issue date:	11/12/1979
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19210C710	List: ML19210C709 ML19210C711
References
LER-79-086-03L, LER-79-86-3L, NUDOCS 7911190495
Download: ML19210C711 (1)

Text

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9't NRC FORM 364 U. 5. NUCLE AR REGULATORY COMMaistON (7 77) 1.lCENSEE EVENT REPORT EXHIBIT A CONTROL SLOCst: l l l l l l 6lh (PLEASE PRINT OR TYPE ALL REQUIRIED 'NFORMATIONI i

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to 6l OOCaL ET NUMSER 68 69 EVENT DATE la FS HF.PONT OATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h o 2 l Tinring undo 6 nnprneinn_ it une dicenvarod rhne rho "R" .9hnednun Pnnling l M l Hpqr Fvch,ngor. 9F19R_ r-4 4 nti nn r,nnienr indfrefnn had incroncod. Tho I fliTa 1 heat exchanger eas iC:nediately isolated on both the service Water & I lo i s i l Roncent enn1nne cian=_ Tnearnvarneinn nf the enc nceiviev increnco n= f el O s I related to plant conditions indicated a small tube leak in the heat ex- 1 E l changer. Activity release was nnnly7ed tn be < MPC. There have been no l O e gir,i l n r necurren ces . Ronnrenblo nor 9.6 Q_i_4.d i C E LC E SUS E COMPON!NT Cout  % e ut S ODE ITITI I c!v l@ tzJ@ Ud@ In IT le Iv i cin l@ LcJ@ tzJ @

p a 9 10 ft 12 12 is N 2ts EE OU E N T' At OcLumprNCE RIVi$ ION

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33 40 41 44 43 es CAUSE CESCR.pTION ANO CORREC rive ACTIONS h i O I The Shutdown Cooling Heat Exchanger was taken out of service and tube 1 8 #074 van identified as the leaker. An Eddy Current Inspection (NDE) is I m I en ho cnnducend nn 111 nf rho cnnlor'= 740 enhoc_ nr 44t_ en naggqq the i f7TTlI cnndicinn nf cho 9nr enhp=_ Annmn149q ufl1 he nnniv-ed & tubes will be !

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[JJ@l to NA J h l PUBLICITY go Ot1CRapTION NRC USC ONLY 7 0 b3@lMedia ccount, Arkansas Gazette, 10/17/79 i , ;,i i;i ,,,l 3 8 9 to ca su ao NAME OF PREPARER Chris N. Shively , goy ,, MWW3M 7911190 % [