ML19269C286

LER 78-065/03L-0 on 781228:during a Surveillance Test on Control Room Emergency Habitability Sys,Sys Could Not Maintain the Room at Required 1/8 Inch Wc Above Outside Atmosphere.Caused by Leaks in Control Room

ML19269C286
Person / Time
Site:	Beaver Valley
Issue date:	01/26/1979
From:	Werling J DUQUESNE LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19269C285	List: ML19269C284 ML19269C286
References
LER-78-065-03L, LER-78-65-3L, NUDOCS 7901310049
Download: ML19269C286 (1)

Text

. .-. . . _ . . . . _ . _

NRC FORM ';46 .

U.S. NUCLEAR REGULATORY COMMISSION

. (7 77)

• LICENSEE EVENT REPORT CONTROL BLOCK: & LEASE PRINT OR TYPE ALL REQUIRED INFO 6MATION) 1 l l l l l lh 6

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7 8 9 LICENSEE CODE 84 15 LICENSE NuMeER CON'T RE'OR7 g 3uc l60L @l610 l 5 lDOCK 0 l ET0NUM8ER l 0 l 3 l 3hal 4 @l l EVENT t>3 l 2 l0 2ATEl 8 l 7 l 8 @l 0REPORT 74 75 1l 2l 6l 7l9l@

0 ATE 80 7 8 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h

[TTT] l While performing a surveillance test on the control room emergency habitability (TTT]l system, it was determined the system could not maintain the control room at the g

[777]l required 1/8 inch WC above the outside atmosphere. An investigation was begun to l 0 s I determine any source of leakage. The health and safety of the general public was l ITTR I not jeopardized. When corrective action was complete, the test was reperfo_rmed I C 7 Isatisfactorily. 1 O s ! I

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CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 27 i O lThe incident resulted from numerous leaks in the control room. Leaks were located g i i l around doors, cable penetrations and penetrations r ade for installation of i 2 1 modifications. The leaks around doors and cable penetrations were sealed. l i 3 l Penetrations made for modifications will be controlled so that they do not remain l g l open for extended periods if work is not being performed. l 7 9 80 ST  % POWER OTHER STATUS dis O RY DISCOVERY DESCRIPTION y W @ l0l0l0l@l N/A l l B l@l Surveillance test l ACTIVITY CO ENT aELEASEo OP aELE ASE AuOusT OF ACTIVITY LOCATION OP RELEASE 1 6 N/A N/A

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NUVBER DESCRIPTION @

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LOSS OF OR D AMAGE TO FACILITY TYPE 9 [Zj@, DESCRIPTION

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