BSEP-88-0850, Special Rept 2-SR-88-002:on 880119,unit Reactor Bldg Fire Detection Sys Zone 14 Instrumentation Declared Inoperable Due to Erroneous Fire Alarms.Limiting Condition for Operation Initiated.Sys Returned to Svc

Special Rept 2-SR-88-002:on 880119,unit Reactor Bldg Fire Detection Sys Zone 14 Instrumentation Declared Inoperable Due to Erroneous Fire Alarms.Limiting Condition for Operation Initiated.Sys Returned to Svc

ML20153H065
Person / Time
Site:	Brunswick
Issue date:	09/01/1988
From:	Harness J CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
2-SR-88-002, 2-SR-88-2, BSEP-88-0850, BSEP-88-850, NUDOCS 8809090076
Download: ML20153H065 (1)

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i CD&L Carolina Power & Ught Company Brunswick Steam Electric Plant P. O. Box 10429 Southport, NC 28461-0429 September 1, 1988 FILE: B09-135100 SERIAL: BSEP/88-0850 U.S. Nuclear Regulatory Commission '

ATrN: Document Control Desk Washington, DC 20555 BRUSSVICK STEAM ELECTRIC PLAh"T UNIT 2 DOCKET NO. 50-324 LICENSE NO DPR 62 FOLIA'UP TO SPECIAL REPORT PER TECHNICAL SPECIFICATION 3.3.5.7 MD PURSUANT Tu TECHNICAL SPECITICATION 6.9.2 (2-SR-88-002)

Gentlemen:

During the Unit 21988 refueling / maintenance outage, the unit Reactor Building fire detection system mone 14 instrumentation was declared inoperable at 1630 hours0.0189 days <br />0.453 hours <br />0.0027 weeks <br />6.20215e-4 months <br /> on January 19, 1988, due to erroneous fire alarms (approximately 5 within the previous 12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> period). This mne monitors the 117-foot ,

elevation of the building. A limiting condition for operation (LCO) and a I Vork Request / Job Order (W1/J0) were initiated to investigate and resolve any t problem (s) to which the sxbject fire alarms could be attributed. On February 2, 1988, the 14-day time frame of the involved LCO was exce (ed.

Following an investigation, which failed to reveal the cause(s) of the fire alarms, the fire detectors were determined to be operatiag properly and, at 0930 hours0.0108 days <br />0.258 hours <br />0.00154 weeks <br />3.53865e-4 months <br /> on May 19, 1988, the involved LCO was cancelled and the zone 14 instrumentation was returned to service. ,

i Very truly yours, b%h_

U L. Harness, General Manager Brunswick Steam Electric Plant l RMP/ah Enclosure cc: Mr. B. C. Buckley [

Dr. J. N. Grace l BSEP NRC Resident Office l

i 8809090076 680901 PDR ADOCK 05000324 pU +

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