ML20125C658
| ML20125C658 | |
| Person / Time | |
|---|---|
| Site: | Zion File:ZionSolutions icon.png |
| Issue date: | 12/04/1992 |
| From: | Miller H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Reed C COMMONWEALTH EDISON CO. |
| Shared Package | |
| ML20125C660 | List: |
| References | |
| NUDOCS 9212140026 | |
| Download: ML20125C658 (3) | |
See also: IR 05000295/1992023
Text
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DEC-41%b
Docket No. 50-295
Docket No. 50-304
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Commonwealth Edison Company
1
ATTN
Mr. Cordell Reed
Senior Vice president
i
Licensing Department - Suite 300
1
Opus West III
1400 Opus place
Downers Grove, IL
60515
Dear Mr. Reed:
!
Thio refers to the routine safety inspection conducted by
R. h
Lerch, K. Salehi, K. Shembarger, and W. Gleaves of this
office on October 5 - 29, 1992.
The inspection included a review
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of activities authorized for your Zion 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.
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The inspection focused on engineering and technical support for
station activities.
The specific areas examined are identified
in the report. Within these areas, the inspection consisted of a
selective examination of procedures and representative records,
observations, and interviews with personnel.
Management actions to increase the involvement of engineering
organizations in plant activities was effective.
An example is
the corporate engineering effort for snubber reduction.
Engineering products were typically thorough and correct.
Our
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inspection, however, found some areas where your performance was
lacking.
In these areas, certain of your activities, appeared to
be in violation of NRC requirements as specified in the enclosed
Notice of Violation (Notice).
The first violation is of concern
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bccause the engineering evaluations for a temporary alteration to
the safety injection system failed to evaluate the potential for
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leakage to create a significant water hammer.
An evaluation by
the corporate engineering staff also failed to recognize this
issue.
Other temporary alterations reviewed had evaluation
weaknesses to a lessor extent.
The second violation involved an
interlock between emergency core cooling system valves not being
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tested after maintenance was performed.
A maintenance activity
unintentionally disabled the interlock.
Upon discovery by the
licensee, the deviation report (DVR) failed to identify
inadequate post-maintenance testing as a contributing cause.
9212140026 921204
ADOCK 05000295
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DEC - 4 B32
Commonwealth Edison Company
2
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You are required to respond to this letter and shoula 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 provent
recurrence.
After reviewing your response to this Notico,
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.
In accordance with 10 CFR 2.790 of the Commission's regulations,
a copy of this letter, the enclosed inspection report, and your
response (s) to this letter will be placed in the NRC Public
Document Room.
The responses directed by this letter is not subject to the
clearance proceduros of the Office of Management and Budget as
required by the Paperwork Reduction Act of 1980, PL 96-511.
We will gladly discuss any questions you have concerning this
inspection.
Si.1cerely,
OkITNM SMED Bf HUDERI L M!uW
11 .
J.
Miller, Director
Division of Reactor Safety
Enclosures:
1.
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2.
Inspection Reports
No. 50-295/92023(DRS);
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No. 50-304/92023(DRS)
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Commonwealth Edison Company
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DEC - 4 ISG2
Distribution
oc w/enclosurent
M. Wallace, Vice Presiderit,
PWR Operations
T. Kovach, Wailcar
Licensing Manager
T. Joyce, St6 tion Manag9r
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S.
Kaplan, Regulatory Assurance
Supervisor
DCD/DCB (RIDS)
OC/LFDCB
Pesident inspectors, Byron,
Braidwood, 21on
f
Richard Hubbard
J. W. McCaffrey, Chief, Pub,lic
Utilities Division
Mayor, city of Zion
Zion, trH, NRR
Robert Newmann, Office of Public
Counsel, State of Illinois Center
Robert M. Thompson, Administrator
Wisconsin Division of Emergency
Government
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