ML20138Q262

Notice of Deviation from Insp on 851023-1202

ML20138Q262
Person / Time
Site:	Beaver Valley
Issue date:	12/20/1985
From:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:
Shared Package
ML20138Q247	List: IR 05000412/1985025 ML20138Q244 ML20138Q252 ML20138Q262
References
RTR-REGGD-01.029, RTR-REGGD-1.029 50-412-85-25, NUDOCS 8512270116
Download: ML20138Q262 (1)

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 October 23 - November 2, 1985, and in accordance with the NRC Enforcement Policy (10 CFR 2, Appendix C), the following deviation was identified:

FSAR, Table 1.8-1 commits to follow the guidance of Regulatory Guide 1.29, Revision 3.

Regulatory Guide 1.29, Regulatory Position 2 requires those portions of structures, systems, or components whose failure could reduce the functioning of any safety-related system to an unacceptable safety level should be de-signed and constructed so that a Safe Shutdown Earthquake (SSE) would not cause such failure. Regulatory Position 4 further requires that the pertinent quality assurance requirements of 10 CFR 50, Appendix B be applied to all activities affecting the safety-related functions of those structures, systems, and components.

Contrary to this, as of November 15, 1985, monorail systems were installed above safety-related systems such as the high head safety injection pumps, so that their failure could reduce the functioning of the high head safety injection safety-related system to an unacceptable safety level. These mono-rail systems were not designed and constructed so that a Safe Shutdown Earth-quake would not cause failure. The pertinent quality assurance requirements of 10 CFR 50, Appendix B were not applied to construction activities affecting the safety related functions of the monorail systems. Visual inspection of certain portions of these monorail systems revealed questionable construction practices, particularly in the quality of the welds. Apparent porosity and undercut was observed.

You are requested to submit to this office within thirty days of the date of the letter which transmitted this Notice, a written statement or explanation in reply, including: (1) the corrective actions taken (or planned); (2) the results achieved; and (3)'the date when corrective action will be completed.

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