ML20151Y746

Forwards Resident Insp Repts 50-317/85-34 & 50-318/85-34 on 851211-860120.No Violation Noted.Weaknesses in Preparation for & Conduct of Maint on Energized Electrical Bus Noted

ML20151Y746
Person / Time
Site:	Calvert Cliffs
Issue date:	02/04/1986
From:	Wenzinger E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:	Tiernan J BALTIMORE GAS & ELECTRIC CO.
Shared Package
ML20151Y748	List: IR 05000317/1985034 ML20151Y746
References
NUDOCS 8602130123
Download: ML20151Y746 (2)

See also: IR 05000317/1985034

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                                                                                                 FEB 0 41986
                       Docket / License:                   50-317/DPR-53
                                                           50-318/DPR-69
                       Baltimore Gas and Electric Company
                       ATTN:          Mr. J. A. Tiernan
                                      Vice President, Nuclear Energy
                       P. O. Box 1475
                       Baltimore, Maryland 21203
                       Gentlemen:
                       Subject:             NRC:RI Inspection 50-317/85-34; 50-318/85-34
                       This transmits the December 11, 1985 - January 20, 1986 resident inspection find-
                       ings by Messrs. T. Foley and D. Trimble at the Calvert Cliffs Nuclear Power Plant,
                       Lusby, Maryland. Those findings were based on observation of activities, inter-
                       views and document reviews which have been discussed with Mr. Lemmons of your staff.
                       Weaknesses were noted in the areas of: (1) preparations for and conduct of main-
                       tenance on an energized electrical bus (a loss of the particular bus involved'was
                       found by the Interim Reliability Evaluation Progr_am to be a possible initiator of
                       a dominant accident sequence) (see Section 8 for details) and (2) apparent infor-~
                       mality in the documentation follow through for a temporary change to a procedure
                       (Section 9). Attention to these area's may be warranted.
                       Within the scope of this inspection, no .violatf or.s _were observed.
                                                                                                                 '
                       Noreplytothisletterisrequired.IYourcooperationwithusis-appreciated.
                                                                                                           Sincerely,
                                                                                                                          s
                                                                                                        ori::i= 1 Siccod B7t
                                                                                                           Edward C. Wenzinger,. Chief
                                                                                                           Projects Branch No. 3
                                                                                                         . Division of Reactor Projects
                       Enclosure: - NRC:RI Report 50-317/85-34; 50-318/85-34
                       cc w/ enc 1:
                       M. Bowman, General Supervisor, Technical Services Engineering
                       T. Magette, Administrator, Nuclear Evaluations
                       Public Document Room (LPDR)
                       Nuclear Safety Information Center (NSIC)
                       NRC Resident Inspector
                       State of Maryland (2)
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                 Baltimore Gas and Electric Company           2     FED 0 41986
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                 bcc w/ encl:
                 Region I Docket Room (with concurrences)
                 Senior Operations Officer (w/o enclosure)
                 Director,.DRS
                 Director,'DRSS
                 DRP Section Chief
                 D. Jaffe, LPM, NRR
               'M.   McBride, RI, Pilgrim
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                                               OFFICIAL RECORD COPY
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