ML19340B205

LER 80-035/03L-0:on 800917,during Surveillance Testing, Gasket in Oil Supply to HPCI Stop Valve Actuator Failed, Causing Shutdown of HPCI Sys.Caused by Gasket of Improper Matl Being Used.Gasket Replaced W/Gasket of Proper Matl

ML19340B205
Person / Time
Site:	Cooper
Issue date:	10/01/1980
From:	Flannigan R NEBRASKA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19340B203	List: ML19340B202 ML19340B205
References
LER-80-035-03L, LER-80-35-3L, NUDOCS 8010210649
Download: ML19340B205 (1)

Text

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REPQRT DATE 80 EVENT OESCRIPTION AND PROBABLE CONSEQUENCES h 1o12l l During routine surveillance testing a gasket in the oil supply to the HPCI stop I l

[ o i 3, l valve actuator failed. The resultant oil leak required that the HPCI system be shutt-l o 141 i down and declared inoperable. This event is not repetitive. The redundant system. I l

IoIsl IADS, was available and operable as were the low pressure iniection systems. This I i

! I a !6 I l occurrence had nn ndvaran afface nn cha mik14 e konieh snA enforv I l

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• SYSTEM CAUSE CAUSE COMP VALVE CODE CODE SUSCODE COYPONENT CODE SUSCODE SUSCODE lTR IsiFl@ Lal@ l 81@ l vi A ti v l 01 P l@ O@ lZ_l Z h i d 9 10 11 12 13 iM 19 20 l SEQUEN TI AL O'.Cbd R E NCE REFORT HEviSION I _EVENTvEAR REPORT NO. COC ' TYPE NO

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JJ 34 36 31 40 41 42 47 CAUSE DESCR'PTION AND CORRECTIVE ACTIONS l i j o l l The failed ' gasket which was' supplied by the vendor was not made of the correct ma- l

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lililiterial. This gasket is installed between the relav valve and the hydraulic cylinder I l l,1:,i lof the HPCI stop valve. The gasket was replaced with one of the p oper material as I Li t il lspecified bv the vendor. The system was tested and performed satisfactor11v. No l M Ifurther 7 8 9 action is o1nnned_ 80 l

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NA 8010 210 (g l NHC USE Om Y llllllllllll l s se J 10 68 69 80 5 NAVE OF PRE' PARER Richard Flannigan pgang 402-825-3811