ML20133G845: Difference between revisions

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{{Adams
#REDIRECT [[IR 05000523/2006028]]
| number = ML20133G845
| issue date = 07/18/1985
| title = Notice of Deviation from Insp on 850523-0628
| author name =
| author affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
| addressee name =
| addressee affiliation =
| docket = 05000412
| license number =
| contact person =
| document report number = 50-412-85-13, NUDOCS 8508090092
| package number = ML20133G825
| document type = NOTICE OF DEVIATION/NONCONFORMANCE FROM A REGULATORY, TEXT-INSPECTION & AUDIT & I&E CIRCULARS
| page count = 1
}}
See also: [[see also::IR 05000523/2006028]]
 
=Text=
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                                                APPENDIX B
                                          NOTICE OF DEVIATION
        Duquesne Light Company                                          Docket No. 50-412
        Beaver Valley Power Station, Unit 2                            License No. CPPR-105
        As a result of the inspection conducted on May 23 - June 28, 1985, and in accor-
        dance with the NRC Enforcement Policy (10 CFR 2, Appendix C), published in the
        Federal Register on March 8, 1984 (49 FR 8583), the following deviation was iden-
        tified:
              In the Final Safety Analysis Report, the licensee committed to implement
              Regulatory Guide 1.29 (RG 1.29), " Seismic Design Classification." RG 1.29
              requires those structures whose failure could reduce the functioning of Seis-
              mic Category I systems to an unacceptable safety level to be designed and
              constructed such that the Safe Shutdown Earthquake (SSE) would not cause such
              failure.
              Contrary to the above, as of May 29, 1985, the structural members and supports
              within the stair enclosure at the 781' to 805' elevations adjacent to the Main
              Steam and Cable Vault area were not designed such that the SSE would not cause
              failure.  Their failure could reduce the functioning of the Seismic Category
              I Service Water System (SWS) to an unacceptable safety level in that SWS lines
              2-SWS-004-762-3, 2-SWS-004-773-3, 2-SWS-004-768-3, and 2-SWS-004-763-3, as
              shown on isometric drawings 101937, 101939, 101942, and 101944, are run
              through this area.
              This is a deviation from commitments.
        No further response to this deviation is required since calculations were performed
        prior to the end of this inspection that demonstrated that the existing stairs at
        this location could withstand a seismic event without affecting the SWS piping.
        Licensee walkdowns of other stair enclosures identified no other similar problems.
                                                _
                                        0FFICI AL RECORD CCFY
        8508090092 B50718
        PDR    ADOCK 05000412
        G                  PDR
}}

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