05000369/LER-1982-044

LER 82-044/03L-0:on 820526,HEPA & Carbon Adsorber Filters Periodic Test Revealed That Auxiliary Bldg Ventilation Sys Filters Failed to Pass Total DOP Penetration Test.Caused by Vibration

ML20054M008
Person / Time
Site:	McGuire
Issue date:	06/30/1982
From:	Nardoci P DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20054L913	List: 05000369/LER-1982-037 05000369/LER-1982-041 05000369/LER-1982-042 05000369/LER-1982-043 05000369/LER-1982-044 05000369/LER-1982-045 ML20054L912
References
LER-82-044-03L, LER-82-44-3L, NUDOCS 8207090147
Download: ML20054M008 (1)

LER-2082-044,

Event date:
Report date:
3692082044R00 - NRC Website

text

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o 2 lPerformance of the "in-place test of HEPA and carbon adsorber filters"'periodict ITTTIltest revealed that the auxiliary buildinn ventilation (VA) system filters failed o Ito pass their total DOP penetration test. The VA system was declared inoperab1p TTITI l uer T.S. 3.7.7 which is reportable per T.S. 6.9.1.13(b). No credit is taken in; ITT.1 I ca fety analysis calculations for tho VA filter systems. Even so, the filterc g o 7 Iwould have' functioned had it been necessarv since the effectiveness of the l Lo_L. ] I fi l t e rs wa s onl y slichriv dominished. Health and safety of the public were un-f

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ITT71 IThe bypass dampers were not sealing properly when closed. In addition, an t m lonening or crack was discovered where the filter housing unit connects to the i L'_L13 Iconcrete. Both of these are helieved to be the result of vibration during the1 L' L ! lunit's onerntion. After 1diustine the dampers and sealine the openine with RTVI iii.i[ sealant, the test was performed satisfactorily and the system declared operablq

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Naus cs PREPARER Phillip B. Nardoci ,,,cu,. ( 7 0 4 ) 373-7432 8207090147 820630 PDR ADOCK 05000369 S PDR

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