ML19209C683

LER 79-036/03L-0:on 790910,during Surveillance Testing, Loophandling Sys Infection Pump 1A Did Not Develop Required Recirculation Flow.Caused by Introduction of Fire Hose Nozzle Into Pump Line.Piping Will Be Inspected

ML19209C683
Person / Time
Site:	Beaver Valley
Issue date:	10/10/1979
From:	Werling J DUQUESNE LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19209C678	List: ML19209C677 ML19209C683
References
LER-79-036-03L, LER-79-36-3L, NUDOCS 7910170212
Download: ML19209C683 (1)

Text

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LICEN'SEE EVENT REPORT CONTROL BLOCK:

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"' "'7 8 60 I DOCK ET NUM8 ER 64 69 EVENT OATE 74 75 REPORT DATE 80 EVENT DESCRIPTION MND PROBA8LE CONSEOUENCES h IIITI I During surveillance testine of the 1A LHSI Pumo. the cumo did not develop the recuired I f5Til Irecirculation flow.

The recirculation check valve was removed and two ofeces of f a 4lone and one-half inch plastic fire hose nozzle were discovered in the valve. The line 1 o s Iwas flushed and a new valve installed. The surveillance test was repeated and a third l o 6 Diece of the nozzle was found in the valve. The redundant LHSI Pumo was ooerable and I o 7 lthe 1A Pump was still capabic of injecting as the injection flow cath was not lo a Irestricted.

I 7 8 9 80 SYSTEM CAUSE CAUSE COMP.VALVE CODE CODE SUBCODE COMPONE

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o 9 7 8 9 10-11 12 IJ 18 19 20_SEQUENTIAL OCCURRENCE REPOnT REVI$loN LE R/RC EVENT YEAR R EPoR T No.

CODE TYPE No.@ Njgg I 71 91 1-1 1013161 l/l 10 1 31 ILI l-l W.a 21 22 23 24 26 27 28 29 30 31 32 TAKE A O oN PL NT T$dU R S S B IT POR 8.SLPPLIE MANUFACTURER lCl@lXl@l Zl@l Z l@l0l0l0 0llN l@[N l@l Z l(Ql Z l 9 l 9 [ 9 l@

33 34 33 M 37 40 44 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS i o lThe incident resulted from the introduction of a Wilco Company, Model No. HN-4-L. fire l g l hose nozzle into the LHSI pump line.

It it not known when it was put in the system norI lwho is responsible.

The surveillance frequency was increased to da'ly for one week and; ilthen weekly for four weeks. No additional pieces have been located.

The LHSI system l, 3l piping will be inspected to the extent possible during the refueling outage.

, , 7 a 9 so SfAY% POWER OTH ER STATUS is O RY' OISCoVERY DESCRtPTION

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*, NUveER OESCRIPTION R l 0 l 0 i O l@l N/A 7(*l_,.n 7 8 7 tt 12llQQ ,) h 4 80 LCSS oF OR DAM AGE TO FACILITY TvPE D E ';CRl* TION W@lN/Al1 9 7 8 9 10 80 PU B L ICI TY 45 NRC USE ONLY ITTTl Du81 N/A 79101.0/IS SU E D DESCRIPTION

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• • NAME OF PREPARER PHONE: