BSEP-93-0007, Special Rept 1-SR-93-002:on 930116,both Fire Suppression Sys Fire Pumps Will Be Made Inoperable for Approx 8 H to Allow Replacement of Isolation Valve (2-FP-V79).Personnel Will Be Stationed to Monitor Diesel Fire Pump Operation

Special Rept 1-SR-93-002:on 930116,both Fire Suppression Sys Fire Pumps Will Be Made Inoperable for Approx 8 H to Allow Replacement of Isolation Valve (2-FP-V79).Personnel Will Be Stationed to Monitor Diesel Fire Pump Operation

ML20127H221
Person / Time
Site:	Brunswick
Issue date:	01/15/1993
From:	Godley R CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
1-SR-93-002, 1-SR-93-2, BSEP-93-0007, BSEP-93-7, NUDOCS 9301220256
Download: ML20127H221 (2)

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CP&L EngEEm a m armassmemun Carolina Power & Light Company E7J:rAurim!LczEcardinma Brunswick Nuclear Project P. O. Box 10429 Southport, N.C. 28461-0429 J AN 151993 FILE: B09-13510C SERIAL: BSEP-93-0007 U.S. Nuclear Regulatory Commission ATTN Document Control Desk Washington, D. C. 20555 BRUNSWICK STEAM ELECTRIC PLANT UNIT 1 AND 2 DOCKET NO. 50-325 AND 50-324 LICENSE NO. DPR-71 AND DPR-62 INITIAL NOTIFICATION WITHIN 24 HOURS FOR SPECIAL REP 0RT PER TECHNICAL SPECIFICATION 3.7.7.1 AND PURSUANT TO TECHNICAL SPECIFICATION 6.9.2 (1-SR-93-002)

Gentlemen:

Unita 1 and 2 are in Cold Shutdown to support the Unit outages that started on April 21, 1992. The following summarizes a fire protection Limiting Condition of Operation that will be initiated to allow work on the Fire Suppression System On the morning of January 16, 1993, both Fire Suppression System f tre pumps will be made Inoperable for approximately 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> to allow replacement of the isolation valve (2-FP-V79) and the associated instrument line. This activity is a continuation of the process originally reported on January 6, 1993, but was halted when clearance boundary leakage could not be reduced / rerouted to allow the enviroment necessary for the required welding.

The instrumentation on this line supplies the automatic start signal for the fire pumpe. While the fire pumps will not be Technical Specification Operable, the Diesel-driven fire pump will remain available and will be manually started and run as backup suppression until the auto start instrumentation can be restored.

As part of the preplanning, the following actions have been taken to coordinate and expedite the completion of the instrument line isolation valve replacement:

- Due to the previous clearance boundary leakage

- The questionable isolation valves have been flushed (debris in the seating area is considered the primary suspect for causing the valve laakage).

21011i 9301220256 930115 V/n U pDR ADOCK 05000324 /0 S PDR

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1 BSEP%P3-0007 .

- tilten-Gonic flow instruments will be available to identify I the specific cinerance boundary valve needing maintenance (if the flush was unsuccessful).

- An additional drain path is being made available by removing the discharge check valve (2-FP-V68) for a fire protection system jockey pump.

- The prefabricated inttrument line/ valve assenbly was modified such that the threaded replacement valve could be installed and used as a boundary for welding the pipe.

- Tha valve replacement will be worked continuously until completed.

- Parte have been reserved and verified.

- Personnel will be stationed tu monitor diesel fire pump operation.

- As a precaution Welding and burning will be minimized throughout the Plant Sito until a second fire pump is available.

- Availability of the southport Fire Department pumper / tanker to draf t from the discharge canal has been verified.

Should you have any questior.s regarding this notification, please contact Mr.

Glen Thearling at (919) 457-2038.

Very truly youra, dA M "SA C. Codley, Manager NRC Compliance R.

i cc Mr. S. D. Ebneter Hr. R. H. Lo BSEP NRC Resident Office

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