ML19331C767

LER 80-012/01T-0:on 800721,during Operational Hydro,Scram Discharge Vol Vent & Drain Valves Failed to Operate. Investigation Indicated at Least One Vent & Drain Solenoid & Both Backup Scram Solenoids Failed

ML19331C767
Person / Time
Site:	Peach Bottom
Issue date:	08/04/1980
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19331C759	List: ML19331C758 ML19331C767
References
LER-80-012-01T, LER-80-12-1T, NUDOCS 8008190506
Download: ML19331C767 (1)

Text

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,_ ; ring Unit 2 cperational hydro, scras discharge volune vent and j

_dr_ain valves failed to operate. Investigation indicated at least cne l jf vent and drain solenoids and both h.ic' cap scra= solenoids failed to

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erate.

m In::erabilits of vent and drain solenoids could inhibit valve

,f sure. In0perability of backup solenoids could require =anual insertion j

._g red if red scra= pilot valves failed to operate no= ally. l

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40 42 43 44 4r u.s: .;num.) TION ANo CORREOTIVE ACTIONS h InvestigatiCn showed bac' c ap scran solenoids rated for 250 7I:C bitt  ;

0uered fren 125 VLC; and that scram discharge volune solenoid valves  ;

had been rebuilt with an i= proper kit. New 125V coils were installed on  ;

bac' cap valves and proper rebuild kits were used en discharge volune vent  ;

and drain valves.  ;

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