ML20101R191

Special Rept 2-SR-92-004:on 920603,05 & 06,LCOs Initiated Due to Open Fire Barrier Penetration Seal,Hole in East Wall of Reactor Bldg & Opening of Fire Door 102,respectively.Fire Watches Established & Penetration Seal Restored

ML20101R191
Person / Time
Site:	Brunswick
Issue date:	07/10/1992
From:	Spencer J CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
2-SR-92-004, 2-SR-92-4, NUDOCS 9207150260
Download: ML20101R191 (2)

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A 3 Caronna Power & Ught Cur 9pany tw2 W weLuastW m m am Brunswick Nuclear Project P. O. Box 10429 Southport, N.C. 28461-0429 July 10, 1992 FILE: B09-13510C U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555 BRUNSWICK STEAM ELECTRIC PLANT UNIT 2 DOCKET No. 50-324 LICENSE NO. DPR-62 SPECIAL REPORT PER TECHNICAL SPECIFICATION 3.7.8 AND PURSUANT TO TECHNICAL SPECIFICATION 6.9.2 f2-SR-92-0Qi)

Gentlemen:

The following fire protection Limiting Condition for Operation (LCO) informational summaries are a result of major structural outage modifications being performed at the Brunswick Plant. The number of LCOs required by this work occurred due to the major scope and duration of the outage required to complete the structural modifications.

A2-92-F0382 on June 3, 1992, at 1110 hours0.0128 days <br />0.308 hours <br />0.00184 weeks <br />4.22355e-4 months <br />, a seven day LCO was initiated due to the discovery that a fire barrier penetration seal, located over the Unit 2 comptier room had been opened. The seal was not identified on the current design drawing as a fire seal when this work commenced. Therefore, LCOs had not been initiated and appropriate fire watches had not been established. Upen determination that the ~eal was a fire scal, an LCO was initiated and an appropriate fire watch established. The seal was discovered during modification work associated with the missile deflecter wall in the Unit 2 control room stairwell. On June 10, 1992, at 1110 hours0.0128 days <br />0.308 hours <br />0.00184 weeks <br />4.22355e-4 months <br />, this LCO exceeded 7 days. Due to ongoing work associated with the mlnsile deflector, this ceal was restored, but required longer than the 7 days allowed by technical specifications. This LCO was cancelled on June 24, 1992 at 1615 hours0.0187 days <br />0.449 hours <br />0.00267 weeks <br />6.145075e-4 months <br />. Appropriately stationed fire watches remained in effect until this LCO was cancelled.

A2-92-F0397 On June 5,1992, at 1445 hours0.0167 days <br />0.401 hours <br />0.00239 weeks <br />5.498225e-4 months <br />, a seven day LCO was initiated due to the opening of a hole in the east wall of the Unit 2 reactor building, resulting from the removal of a conduit and cable penetcation which was discoveret during reactor building wall inspections. This conduit and cable protruded *,hrough the east wall of the Unit 2 reactor building to the 20 foot elevation in the RHR hett exchanger room. The conduit and cable, which was indicated on the Unit 2 design drawings as a spare penetration, was capped on the inside wall of the Unit 2 reactor building, but uncapped on the outside surface of the wall. An engineering evaluation is being conducted to determine the appropriate repair for the hole in the reactor building wall. Appropriate fire watches were established when the LCO was initiated. On June 12, 1992, at 1445 hours0.0167 days <br />0.401 hours <br />0.00239 weeks <br />5.498225e-4 months <br />, this LCO exceeded seven days. This work is currently scheduled to be completed by July 17, 1992.

Appropriately scheduled fire watches will remain in effect until this work is completad and the LCO is cancelled.

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A2-92-T0400 on June 6,1992, at 0930 hours0.0108 days <br />0.258 hours <br />0.00154 weeks <br />3.53865e-4 months <br />, a seven day LCO was initiated due to the opening of fire door 102 in order to support outage work. This door is located in the control building. Appropriate fire watches were established at that time. On June 13, 1992, this LCO exceeded 7 days. This LCO was cancelled on June 20, 1992 at 0930 hours0.0108 days <br />0.258 hours <br />0.00154 weeks <br />3.53865e-4 months <br />. Appropriately stationed fire watches remained in ef fect until the LCO was cancelled.

Very tr ly yours, p ,

spencer, General nager unswick Nuclear Pr oct (3.W JCP/jp ces Mr. S. D. Ebneter Mr. R. H. Lo BSEP NRC Resident Office

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