ML20028D917

LER 82-155/03L-0:on 821206,two Fire Spray Sys in Cable Spreading Room Declared Inoperable in Order to Repair Leaking Valve.Caused by Minor Leakage Due to Damaged Seating Surfaces of Manual Shutoff Valve SA2301MU121.Valve Replaced

ML20028D917
Person / Time
Site:	San Onofre
Issue date:	01/05/1983
From:	Ray H SOUTHERN CALIFORNIA EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
Shared Package
ML20028D914	List: ML20028D913 ML20028D917
References
LER-82-155-03L, LER-82-155-3L, NUDOCS 8301200088
Download: ML20028D917 (1)

Text

NRC FCM 366 U. S. NUCLEA7 E E EULATCY COMMISSION (7 77)

• LICENSEE EVENT REP. O RT CONTROL BLOCK: l 1

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EVENT DEsCHIFTioN AND PROBABLE CONSEQUENCES h o 2 l At 1200 on December 6,1982, while the plant was in Mode 1, two fire spray systems I o 3 l in the cable spreading room of the Control Building were declared inoperable in g o 4 ) order 10 repair a leaking valve. Inoperability of the system did not affect l o s l public health or safety. [

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44 47 JJ 34 35 36 31 40 42 43 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS i n t o l l The event was due to damaged seating surfaces of manual shutoff valve SA230lMU121 l i i l which resulted in minor leakage. The valve was replaced with an identical valve r 2

1 at 2152 on December 6,19hi2, and the system declared operable. No further corrective l

, 3 l action is planned to prevent recurrence as this was an isolated event. l l

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