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LER 80-018/03L-0:on 800220,during Routine Surveillance of torus-drywell Vacuum Breaker Valves,Valve 2T48-F323 Failed to Open.Caused by Foreign Object in Valve Cylinder Air Supply Line.Air Line Purged & Valve Satisfactorily Tested
	ML19312D177
Person / Time
Site:	Hatch
Issue date:	03/11/1980
From:	Nix R; GEORGIA POWER CO.
To:	; NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19312D176	List: ML19312D175; ML19312D177;
References
	LER-80-018-03L-01, LER-80-18-3L-1, NUDOCS 8003210395
	Download: ML19312D177 (2)
	v • d • e

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' LICENSEE EVENT REPORT l l l l (PLEASE PRINT CG TYPE ALL REEUIRED INFORMATIONI CON 1ROL f! LOCK: {l' l 6 i

o 1 -lC l"Al El Il Hj 2l@l 0 l 0l 0l 0 l 0 ] 0 ] 0 l 0 l 0 l O l O 2al@[ 4 l 1UCLN'iE 2t>

l 1 l T1YPE l 140j@l67 CAT l b5 l@

14 16 LIC&NSE NUVUEft 7 8 9 LICEN1tE CODE Cs ITlil i 8 Ol" LIJ@l 015101 ol 013l 6161@l 0121210181 O l@l 0131 il 11810 l@

f,0 Gl DOCAE I NUP.*lsEst tid 63 EVENT DATE J4 IS FttPCHT DATE 80

. EVENT DESCRIPTION AND PHOD AOLE CONSEQUENCIS While performing ro'utine surveillance on the Trous-Drywell Vacuum Break- j o 2 l

. er valves, valve 2T48-F323 would not open. The required surveillance oa l

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o 4 l the Operable Vacuum Breaker Valves was immediately performed per Tech Spec 4.6.4.1. Action A. There was no significant of feet on the safe l O s l

[o~fa~ll plant operation. Public health and safety were not ef fected by this l 0 7 l Incident. A'similar' event occurred on Decembe,r~ 16, 1979. Ref. hER l l

l o la i 1 50-366/1979-136. 80 5 BC E COMPONENT CODE SUDC OE $ DE UE CO E o 9 I si Al@ [n_J@ LBO l V l A l L l V l E l X l@ [X_j@ y @ 18 19 20 8 9 10 ft Ic IJ REVISION 7 HEPOHT EEOUENTI AL OCCU R H F NCE CODE 1YPE N O.

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42 43 44 41 CAUSE DESCnlPTION AND CORRECTIVE ACTIONS h

[TTT1 1 The f ailure of the valve was due to a small foref nn ob_ lect boinc lodge _d l I*It1l in the valve cyclinder air supp1v lire. The air 'ine was ourced. recon- !

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nected, and the valve 'was functionally tested natinf actorily.

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E g W f fWithithel x . react.or at(99%(;tlierm$1jpower on February 10g1980, the,2T48-F323fL p

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4 MyalveS failed to ._open ;during routine surveillance .obthe Torus-Drywell i t l R . WVacuum;BreakerlValves.nThe. requires stirveillance in' the 'Operabic Vacitumi '

MN@l5 4 IBre5kerLValves NadimmEdiatelyLperformed per Tech 15pec.'4.6.4.lWAction A. -

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ML19312D177

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