05000315/LER-1985-018, :on 850416,fire Barrier Inoperable.Caused by Lack of Fire Sealant Matl in Two Floor Penetrations. Penetrations Sealed,Declared Operable & Added to Surveillance Program

:on 850416,fire Barrier Inoperable.Caused by Lack of Fire Sealant Matl in Two Floor Penetrations. Penetrations Sealed,Declared Operable & Added to Surveillance Program

ML20128B354
Person / Time
Site:	Cook
Issue date:	05/13/1985
From:	Stietzel J INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:
Shared Package
ML20128B345	List: 05000315/LER-1985-018, :on 850416,fire Barrier Inoperable.Caused by Lack of Fire Sealant Matl in Two Floor Penetrations. Penetrations Sealed,Declared Operable & Added to Surveillance Program ML20128B342
References
LER-85-018, LER-85-18, NUDOCS 8505240507
Download: ML20128B354 (1)

LER-1985-018, on 850416,fire Barrier Inoperable.Caused by Lack of Fire Sealant Matl in Two Floor Penetrations. Penetrations Sealed,Declared Operable & Added to Surveillance Program

Event date:
Report date:
3151985018R00 - NRC Website

text

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.,,0 n w,ne, ON APRIL 16,1985, AT 1146 IlOURS WIT!! UNIT 1 IN FODE 5 (COID SIIUIDOhN) NID UNIT 2 IN MODE 1 AT 95 PERCmf PT1CIOR TIIERMAL POWER, IT WAS DISCOVERED DURING SYSTm WALKDOWNS EUR FICW DIAGRM VERIFICATIONS TIIAT TIIE FIRE SEALANT MATERIAL NAS ABSENT FROM ThO FIDOR PENETRATIONS (IEEE/ SEAL). 71IE IICK OF SEAL MATERIAL CWSTITUTES AN INOPERABLE FIRE BARRIER AS ADDRESSED IN TECIINICAL SPIIIFICATION 3.7.10.

A FIRE WATCII WAS IFNEDIATELY POSTED IN TIIE Arrwn2) AREAS.

T!!E PENETRATIONS WERE B0rl! EIGlT INCII PIPE SLEEVES, IOCATED IN EACil OF T!!E TURBINE DRIVEN AUXILIARY FEED PUMP ('IDAFP) ROWS. TIIE OPEN PENETRATIONS KERE SEALED AND DECLARED OPERABLE ON APRIL 17, 1985, AND WERE ADDED TO T!!E SURVEILIANCE PROGRAM.

TIIE SUBJECT PENETRATIWS WERE NOT PREVIOUSLY IDUTTIFIED DURING INSPECTIOFS OF T1E PENETRATIONS IN ' DIE 1DAFP ICOMS.

T!!ESE OPDi PD1LTRATIONS DID NOT AFFECT TIE OPERABILITY OF TIfE FIRE SUPPRIESICH SYSTEN, AS T!!E TDAFP ROWS ARE PPUTECTED BY A WATER SUPPRESSION SYSTD4. TIIE LIKELI!!OOD OF A FIRE PROPAGATING UIRCUCII T!!E OPDi PENETRATIONS WAS MINIMAL DUE TO A IDW CCMBUSTIBLE MATERIAIS IDADING IN TIIE AREA BEIDW 71IE Atywn21 FIRE ZONE. TIE IIEALT!! AND SAFLTY OF 11IE PUBLIC WERE NOP AFFECTED.

PREVIOUS SIMIIAR EVIWrS INCLUDE 316/85-06.

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