ML19312D475

LER 80-006/03L-0:on 800213,while at Power,Reactor Core Isolation Cooling Automatic Control from Control Room Found Inoperable.Caused by Logic Circuit Board Failure in Pump Discharge Flow Controller.Defective Controller Replaced

ML19312D475
Person / Time
Site:	Peach Bottom
Issue date:	03/12/1980
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
LER-80-006-03L, LER-80-6-3L, NUDOCS 8003240463
Download: ML19312D475 (1)

Text

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t Mr . n..ym H. W lor, Director Noo 3 80-6/3L l Of fice of Inspcction 8. Enforco.nent, Reg an i U. *e . Na luer Hegulatory Cununission .

l 611 P..rk Ave .us-King of Prussia, PA 1 %Q6 l Daar Mr. Gricre l

This LER refers to the failure of the Unit 3 RCIO now controller makirs automatio now control from the Control Room inoperable. m goremirs Technical Specification is 3 5.D.1.

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et Ass ensNT on Tyre ALL naouinto encoranArions d.][Pa lv A l P l 0 l $ l 3 i.l@in0 !O l- 10 .w 39 l0v=10o. 10 l 10 10 ,*la@ isll l l 6u=s.: um uce Il es 11 sv,sl1m l@** us w@

$ 10 15 10 l- 10 l2 f 7 l8 @l 0 l 2 l 1131810 @l 013l 1l 21510 l@

svs=7 oascaIevioNoAenoi A a c$ sYsucss h yI While at power a control room operator observed that RCIC automatio flow 1 g.g i control from the Control Room was inoperable. However, manual now l EE t control was operable and the EPCI system was preven operable in accord- l

(([g i ance with Tech. Spoo.14.5.D.2. Automatio now control from the Control l l

[g[.] I Room was inoperable for approximately 11 hours1.273148e-4 days <br />0.00306 hours <br />1.818783e-5 weeks <br />4.1855e-6 months <br />. I yt I 1

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yI A logio circuit board failure in the RCIC pup discharge flow centro 11er I

[f t ] 1 (S/N 50-5Lo017 HAMit 2 PSZ) caused the event h defective controller i gg was replaced with a s1=11e unit, was proved operable by natisfactorily J

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