05000321/LER-1979-091-03, /03L-0:on 791106,insurance Investigation Revealed Required Penetration Seal Not Installed in 2-inch Penetration in Control/Svc Bldg Firewall.Caused by Misinterpreted Drawings.Seal Installed

/03L-0:on 791106,insurance Investigation Revealed Required Penetration Seal Not Installed in 2-inch Penetration in Control/Svc Bldg Firewall.Caused by Misinterpreted Drawings.Seal Installed

ML19262A927
Person / Time
Site:	Hatch
Issue date:	11/27/1979
From:	Coggin C GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19262A926	List: 05000321/LER-1979-091, Forwards LER 79-091/03L-0 05000321/LER-1979-091-03, /03L-0:on 791106,insurance Investigation Revealed Required Penetration Seal Not Installed in 2-inch Penetration in Control/Svc Bldg Firewall.Caused by Misinterpreted Drawings.Seal Installed
References
LER-79-091-03L-01, LER-79-91-3L-1, NUDOCS 7912110323
Download: ML19262A927 (2)

LER-1979-091, /03L-0:on 791106,insurance Investigation Revealed Required Penetration Seal Not Installed in 2-inch Penetration in Control/Svc Bldg Firewall.Caused by Misinterpreted Drawings.Seal Installed

Event date:
Report date:
3211979091R03 - NRC Website

text

NRC FORM 3GG U. S. NUCLE AR REGULATORY CO.W.11SSION (7 77)

LICENSEE EVENT REPORT CcNTRol BLOCK: l l

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EVENT CATE 14 7b REPORT D ATE 80 EVENT DESCRIPTION AND PROBABLE CO*15EQUEP.CES h ITIT lWhile operating under steady state conditions an investigation resulting from an insur-l lance inspection revealed, on 11-6-79, at 0755 CST, that a recuired penetration seal l

Io 3i had not been installed in a 2 inch penetration in the control / service building HVAC l

o a

iroom firewall during the initial penetration seal program.

Failure to establish l

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la fire watch constitutes a violation of Tech Specs 3.13.6.

An exceotion was granted i

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Ifor the adjacent 5 ft. by 9 ft. HVAC penetration according to the "HflP Fire Evalua-l o

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40 41 42 43 44 47 CAUSE DESCRIPT'ON AND CORRECTIVE ACTIONS lThe firewall delineation drawings were misinteroreted by the penetration seal contract-l i

o lor and site inspectors. A section of the firewall, shown non-rated in the drawinos, i

i i

Iwas not clarified in the verbal portion of the " Fire Evr.luation" as applying only to I

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Ithe HVAC penetration.

Installation of the 3 hour3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> rated seal was begun immediately i

a jiIA l land was comolete by shif t change.

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pgays 912-367-7781

Georgia Power Company Plant E. I. Hatch Baxley, Georgia 31513 Even'.'escription and Probable ConsequencesThere were no effects on the health and safety of the public.

This is a repet-itive occurrence.

See LER 78-74.

1528 093