ML20082K231

Special Rept:On 950328,minimum Number of Required Operable Detectors for Fire Detectors for Fire Detection Zone 2-34 Had Not Been Maintained Causing to Exceed 14-day Timelock Allowed by TS

ML20082K231
Person / Time
Site:	LaSalle
Issue date:	04/13/1995
From:	Ray D COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9504190172
Download: ML20082K231 (1)

Text

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Commonwealth F.dison Company g

d laSalle Generating Statior 2601 North 2ist Road Marwilles. II 613 ti 9757 Tel 815.457676I l

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April 13,1995 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D. C. 20555 This special report is submitted in accordance with LaSalle Unit 2 Operating License NPF-18, Appendix A, and Technical Specification Sections 3.3.7.9 and 6.6.c.

Table 3.3.7.9-1 of Technical Specification 3.3.7.9 requires a minimum number of fire detection instruments to be operable. On March 28,1995, at 1215 hours0.0141 days <br />0.338 hours <br />0.00201 weeks <br />4.623075e-4 months <br />, the minimum number of required operable detectors for Fire Detection Zone 2-34 had not been maintained, thereby exceeding the 14-day timeclock allowed by the Technical Specification. This Fire Detection Zone is located in the Unit 2 Reactor Building at elevation 761', Fire Hazard Zone 3E.

Fire Detection Zone 2-34 was taken out of service to prevent spurious alarms caused by welding and cutting on the gallery steel around High Pressure Core Spray (HPCS)

Pump Injection Valve 2E22-F004 during the Unit 2 Refueling Outage. Per the Action Statement requirements of Technical Specification 3.3.7.9, a Fire Watch was established to inspect the affected fire detection zone once every hour while the detectors are inoperable. Detection Zone 2-34 will be retumed to service upon completion of the welding and cutting activities associated with modifying the gallery steel around valve 2E22-F004 prior to the end of L2R06.

This Special Report is required since the detectors were not restored to an operable status within 14 days.

Sincerely, l

D.J. Ray Station Manager LaSalle County Station DJR/RV/lja cc: NRC Region 111 Administrator NRC Senior Resident inspector g ., ,, INPO - Records Center 9504190172 950413 i G V .1 b .3 IDNS Resident inspector DR ADOCK 0500 4 g

Nuclear Licensing Administrator -[ O A Unimm Company 1

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