ML20004B125

LER 81-029/03L-0:on 810327,analysis of Supply/Exhaust Fan Damper Controls for Emergency Switchgear/Battery Rooms Revealed Air Supply Piping to Pneumatic Damper Operators Not Seismically Qualified.Permanent Mods in Design Phase

ML20004B125
Person / Time
Site:	Peach Bottom
Issue date:	05/18/1981
From:	PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
2-81-029-3L, 2-81-29-3L, LER-81-029-03L, LER-81-29-3L, NUDOCS 8105270266
Download: ML20004B125 (1)

Text

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Mr. Joyce H. Grier, Director -hh2-81029/3L Office of Inspection 3r Enforcemerit, Region I .

U.S. Nuclear Regulatory Camission f 631 Park Avenuc King of Prussia, PA 1946 , ,.3\F Oear nr. Griers

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This L.E.R. concerns air supply piping and supports to emergency switchgear ,

' room and battery room ventilation danpers which were determined to not- be ~

seismically qualified. Coverning Tech. Spec. is 3 9 i . . . . . .

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j io i:1 I seismic analysis of supply and exhaust fan danger controls for the i gl emercency switchgear and battery rooms revealed that the air supply i I

gi oloinc to pneumatic dancer operators was not seismically qualified. A l l lo !si I seismic event may have caused isolation of the venti;ation in these 1 i a ,6 i l rooms. This was originally eepnrted to US NRC Region i office of l 1

gl insoection and enforcement on April 13, 1981. Govern'ng tech spec is I i 2!4 1 1 3.9. .J Ye's" 'l$I s'e'Ne cowome=r coos su'aEco EN"oos loisi i AIAl@ jg@ W e a

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