ML20195H195

Special Rept:Seven Fire Dampers Failed to Fully Close During Operational Testing & Not Restored within 7 Days.Cause Undertermined.Dampers Adjusted & Returned to Svc After Retesting Except VS-D-260 & 285.Fire Watch Established

ML20195H195
Person / Time
Site:	Beaver Valley
Issue date:	01/13/1988
From:	Lacey W DUQUESNE LIGHT CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
ND3SPM:0139, ND3SPM:139, NUDOCS 8801190058
Download: ML20195H195 (2)

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a T49 Teterhone su)meoo Nucle at Oroup P.O. Box 4 Shippingport, PA 15077-0o04 January 13, 1988 ND3SPM:0139 Beaver Valley Power Station, Unit No. 1 Docket No. 50-334, License No. DPR-66 Special Report United States Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 Gentlemen:

In accordance with Appendix A, Beaver Valley Technical Specification 3.7.15, "Fire Rated Assemblies", the following Special Report is submitted. This report is required when the conditions specified in Technical Specification 3.7.15.a are not satisfied.

During Beaver Valley's 6th Refueling outage, there were seven fire dampers that failed to fully close during their operational testing and could not be restored within the Technical Specification time limit of seven days. These dampers have been adjusted and returned to service after retesting except VS-D-260 and 285. Task Force evaluation has been initiated concerning these damper release mechanisms, latchec and general damper condition. Basically, the dampers have all been worked and tested, but a satisfactory pass rate has not been achieved prompting this further evaluation. These dampers will be returned to service after the completion of this evaluation and successful retesting.

There were no safety implications due to this event. A fire watch will be maintained in the affected area until all dampers are operable.

Very truly yours,

.,./ , -

/ }W CW Wm. S. Lac 91'j Plant Manager tlu 3

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Janunry 13, 1988

, ND3SPM 0139

< Page two cc Mr. William T. Russell Regional Administrator United States Nuclear Regulatory Commission Region 1 King of Prussia, PA 19406 C. A. Roteck, Ohio Edison Mr. Peter Tam, BVPS Licensing Project Manager United States Nuclear Regulatory Commission Washington, DC 20555 J. Beall, Nuclear Regulatory Commission, BVPS Senior Resident Inspector Mr. Alex Timme, CAPCO Nuclear Projects Coordinator Toledo Edison INPO Records Center Suite 1500 1100 circle 75 Parkway Atlanta, GA 30339 G. E. Muckle, Factory Mutual Engineering, Pittsburgh Mr. J. N. Steinmetz, Operating Plant Projects Manager Mid Atlantic Area West.i.nghouse Electric Corporation Energy Systems Service Division Box 355

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