ML20093K349

Special Rept:On 950921,Fire Door 615 Was Inoperable for Period Greater than Seven Days.Door Was Opened 950914 to Allow Access to Reactor Recirculation Sys Panel 2H13-P634. Established Hourly Fire Watch

ML20093K349
Person / Time
Site:	LaSalle
Issue date:	10/13/1995
From:	Ray D COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9510240178
Download: ML20093K349 (2)

Text

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Commonwealth filium Company

.. N laSalle Generating Station 2(01 North 2Iu Road 4 Mancilles, il613119757 Tel HI5 35M761 m

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. October 13,1995 U. S. Nuclear Regulatory Commission Attention: Document Cordrol Desk l Washington, D. C. 20555 J

. This special report is submitted in accordance with LaSalle Unit 2 Operating License NPF-18, Appendix A, and Technical Specifications 3.7.6 and 6.6.c.

I f Technical Specification 3.7.6 requires that all fire rated assemblies and all sealing i

devices in fire rated assemblies (fire doors, fire windows, fire dampers, cable and piping penetration seals and ventilation seals) separating portions of reduridant systems important to safe shutdown within a fire area shall be OPERABl.E at all

' times, t-

On September 21,1995, at 1120 hours0.013 days <br />0.311 hours <br />0.00185 weeks <br />4.2616e-4 months <br />, Fire Door 615 was inoperable for a period

greater than seven days. Door 615 was opened on September 14,1995, at 1120 i hours to allow accaan to Reactor Recirculation System Panel 2H13-P634 which is located in Fire Subzone 4E2-2. Troubleshooting was being performed from Panel 2H13-P634 in an attempt to determine the cause of valve oscillations on Reactor 4

Recirculation Flow Control Valves 2B33-F060A and 2833-F0608. Because Door 615 is located in close proximity to Panel 2H13-P634, it was necessary to open Door 615 so test equipment could be placed near the panel. Fire Door 615 is located in the wall which separates Fire Subzones 4E2-1 and 4E2-2 in the Unit 2 Aux!!!ary Building on elevation 731'. An Houriy Fire Watch was established in accordance with the Action Statement of Technical Specification 3.7.6 to inspect the affected areas while the door was inoperable. This compensatory measure along with the operable fire detection existing on both sides of the door and the Fire Prevention Administrative Program ensured the level of fire protection was not reduced during this event.

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A Special Report is required because the door was not restored to an operable ,

status within seven days. Door 615 was returned to an operable status (i.e., l closed) on October 5,1995, at 1225 hours0.0142 days <br />0.34 hours <br />0.00203 weeks <br />4.661125e-4 months <br /> upon completion of the troubleshooting j activities.  !

l Sincerely,  !

D.J. Ray Station Manager LaSalle County Station 1

DJR/CJD/lja cc: H. J. Miller, NRC Region 111 Administrator ,

P. G. Brochman, NRC Senior Resident inspector, LaSalle l R. J. Zuffa, IDNS Resident inspector INPO - Reconis Center ,

D. L Farrar, Nuclear Regulatory Service Manager, NORS

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