ML20058A314
| ML20058A314 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 11/12/1993 |
| From: | Wright G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Delgeorge L COMMONWEALTH EDISON CO. |
| Shared Package | |
| ML20058A316 | List: |
| References | |
| NUDOCS 9312010040 | |
| Download: ML20058A314 (3) | |
See also: IR 05000254/1993024
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NUCLEAR REGULATORY COMMISSION
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UNITED STATES
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GLEN ELLYN. ILLINOIS Go137-W27
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November I;, 1993
Docket Nos. 50-254; 50-265
Licenses No. DPR-29; No. DPR-30
Commonwealth Edison Company
ATTN: Mr. L. O. DelGeorge
Vice President
Nuclear Oversight and
Regulatory Services
Executive Towers West III
1400 Opus Place, Suite 300
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Downers Grove, IL 60515
Dear Mr. DelGeorge:
SUBJECT:
NOTICE OF VIOLATION (NRC INSPECTION REPORTS NO. 50-254/93024(DRS);
NO. 50-265/93024(DRS))
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This refers to the team inspection conducted by Mr. G. M. Hausman and others
of this office on July 28-30, August 2-4, and August 9-20, 1993. The
inspection included a review of activities authorized for your Quad Cities
Nuclear Power Station, Units 1 and 2.
At the conclusion of the inspection,
the findings were discussed with those members of your staff identified in the
enclosed report.
Areas examined during the inspection are identified in the report.
The
purpose of the inspection was to determine whether activities authorized by
the license were conducted safelv and in accordance with NRC requirements.
The inspection included a revie.
' your activities associated with an unusual
event declared on July 27,1993, dt.2 to loss of offsite power.
The inspection
also included an assessment of the quality and effectiveness of electrical
maintenance activities associated with high, medium and low voltage breakers.
Within these areas, the inspection consisted of selective examinations of
procedures and representative records, interviews with personnel, and
observations of activities in progress.
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Although overall breaker maintenance was considered adequate, post-maintenance
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testing on bus 22 breakers prior to the unusual event was inadequate.
Failure
by plant personnel to recognize the RAT to UAT slow transfer existed per plant
design was seen as a weakness in personnel training.
In addition, substation
construction (SSC) documentation related to the identification of preventive,_
predictive and corrective maintenance activities on oil circuit breakers and
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associated 345kV switchyard equipment was also seen as a weakness. The lack
of documented activities on nonsafety-related equipment that can affect plant
operations is a concern to the NRC. Therefore, in addition to the response to
the enclosed Notice, please provide a written response on the actions you plan
to take with regards to improving SSC documentation.
9312010040 931112
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Commonwealth Edison Company
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November 12, 1993
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Based on the results of this inspection, certain- of your activities appeared
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to be in violation of HRC requirements, as specified in the enclosed Notice of
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Violation (Notice). The violations are of concern because of the potential
safety impact inadequate electrical breaker maintenance could have on plant
operations.
You are required to respond to this letter and should follow the instructions
specified in the enclosed Notice when preparing your response.
In your
response, you should document the specific actions taken and any additional-
actions you plan to prevent recurrence. After reviewing your response to this
Notice, including your proposed corrective actions and the results of future
inspections, the NRC will determine whether further NRC enforcement action is
-necessary to ensure compliance with NRC regulatory requirements.
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In accordance with 10 CFR 2.790 of the Commission's regulations, a copy of
this letter, its enclosures, and your response to this letter will be placed
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in the NRC Public Document Room.
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The responses directed by this letter and the accompanying Notice are not
subject to the clearance procedures of the Office of Management and Budget as
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required by the Paperwork Reduction Act of 1980, PL 96-511.
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We will gladly discuss any questions you have concerning this inspection.
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Sincerely,
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G off/ey {. Wright, Chief
Engineering Branch
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Enclosures:
1.
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2.
Inspection Reports
No. 50-254/93024(DRS);
No. 50-265/93024(DRS)
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See Attached Distribution
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~ Commonwealth Edison Company
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November 12, 1993
Distribution
cc w/ enclosures:
R. Pleniewicz, Site Vice President
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G. Campbell, Station Manager
A. Misak, Regulatory Assurance
Supervisor
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D. Farrar, Nuclear Regulatory
Services Manager
OC/LFDCB-
Resident Inspectors-Quad Cities,
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Dresden, laSalle
Richard Hubbard
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J. W. McCaffrey, Chief
Public Utilities Division
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LPM, NRR
Robert Newmann, Office of Public
Counsel, State of Illinois
Center
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State Liaison Officer
Chairman, Illinois Commerce
Commission
J. B. Martin, RIII
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