ML20024E634

LER 83-017/03L-0:on 830707,HPCI Feedwater Booster Pumps 11 & 13 Taken Out to Svc to Inspect Impellers Due to Similar Problem on nonsafety-related Pump.Parts of Strainer Found in Pumps But Pumps undamaged.W/830805 Ltr

ML20024E634
Person / Time
Site:	Nine Mile Point
Issue date:	08/02/1983
From:	Kesel D, Lempges T NIAGARA MOHAWK POWER CORP.
To:	Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
LER-83-017-03L, LER-83-17-3L, NMP-6972, NUDOCS 8308160258
Download: ML20024E634 (3)

Text

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EVENT DESCnlPTION AND PROBABLE CONSEQUENCES 10 l O i,i lFeedwater booster pumps #11 and #13, w 1ich are part of the high pressure coolant injec i g  ; tion system, were taken out of service to inspect the impellers due to a problem sufferyd l0l4l lby a non-safety related pump of the same type. Pump #11 was out of service for the 1 10 ITl [ period from 10:30, July 7, to 8:40, July 13 and pump #13 for the period 11:00 July 13 l 10 IT] [until 14:10, July 22. Both pumps were fully operable before they were removed from l

[ O l 7 l l service. Parts from the condensate demineralizer strainer were found within the pumps,]

l o l a 1 hl owever, the pumps were undamaged. The consequence of removing the pumps from service l sa r 8 9 (SEE ATTACilED PAGE)

SYST E M CAUSf C AUSE COMP VALVE CODE CODE SUtiCODE COMPONENT CODE SUSCODE SUSCODE 10191 Ic l iil@ W@ W @ l P l u l M l P lx lx l@ LBj@ [ Z_J @

1 M 9 10 11 17 13 18 19 20 SEQUE Nil At UCCUHHfNC[ HEFOHT HE VISION (g n no EVENTYEAR REPOH T NO CODE TVPE NO

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_l 8 l 321 l 21 23 24 2b 21 28 29 30 31 32 AC T ION FUTURE EFFECT SHU T DOWN ATTACHMENT NPRD 4 PHtME COMP. COMPONtNT TAKEN AC T ION ON PL ANT METHOD HOUHS = SUBMI TT E D FOHMbub SUPPLIE H MANUTACTUHER l33X I@l34Z l@ W@

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44 47 CAUSE DESCRIPilON AND CORRECTIVE ACilONS I i l o I l Both redundant components were returned to service within 15 days of their removal I i i I from service. I I i 171 1 1 11 13] l l i 4  ! I 1 8 9 80 ST S  % POWE H OTHE R STA TUS ISC V HY DISCOS EHY DESCHIPTION l i l 5" l l E l@ l 1 l 0 l 0 l@l" NA l ]** @l* Preventative Maint.

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PEftSONNEE F XPOSURES NUMBE R TYPE DESCRIPTION l l 7 l l 0 l 0 l 0 l@y@l NA l

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t OSS OF OH DAMAGE TO F ACit liv TYPE DE SCHIP TION /

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e LICENSEE EVENT REPORT 83-17 l

l Event Description and Probable Consequences (cont'd.) I was reduced redundancy of the IIPCI system.

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Y NIAGARA NUMOHAWK Nap-6972 NIAGARA MOHAWK POWER CORPORATION /300 ERIE BOULEVARD WEST, SYRACUSE. N Y.13202/ TELEPHONE (315) 474-1511 l

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Augast 5, 1983 Dr. Titomas E. Marley Regional Administrator United States Nuclear Regulatory Commiss. ion Region I 631 Park Avenue Icing af Prussia, Pennsylvania 19406 RE: y k Q . 50-220

Dear Dr. Murtcy,

In accordance leitit Mine Mile Point Nuclear Station Uutit H1 Tecitnical Specifications, tee liereby submit tite follotcing Licensee Event RepoM:

83 -17 telticit is being subutted in accordance tcLtit Section 6.9.2(b)2, Condi,tions leading to operation in a degraded mode permitted by a linLting condition for operation or plant situtdoten required by a timiting conditwn for openation.

Titis report seas completed in tite format designated in NUREG-0161, dated July 1977.

Very truty yours, VM*14L L91 ^

m r l Tliomas E. LempgEl U.z cs l Vice President Nuclear Generation TEL/jm Attaciuncitts (3 copics) cc: Director, Office of I6E (30 copies)

Director, Office of MIPC (3 copics)

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