ML20196D556
| ML20196D556 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 02/11/1988 |
| From: | Davis A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Sylvia B DETROIT EDISON CO. |
| Shared Package | |
| ML20196D559 | List: |
| References | |
| EA-87-232, NUDOCS 8802170251 | |
| Download: ML20196D556 (4) | |
See also: IR 05000341/1987049
Text
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Docket No. 50-341
License No. NPF-43
EA 87-232
The Detroit Edison Company
ATTN:
B. Ralph Sylvia
Group Vice President
Nuclear Operations
6400 North Dixie Highway
Newport, MI 48166
Gentlemen:
SUBJECT:
NOTICE OF VIOLATION AND PROPOSED IMPOSITION OF CIVIL PENALTY
(NRC INSPECTION REPORT NO. 50-341/87049(DRP))
This refers to the special NRC inspection conducted during the period
September 11 through November 25, 1987, at the Enrico Fermi Nuclear Power
Plant, Unit 2, of activities authorized by NRC Operating License No. NPF-43.
That inspection examined the circumstances surrounding the event that
disclosed a design problem in the single failure protection for the 72CF
bus automatic throwover function.
This matter, which was discovered by
you on September 8, 1987, and was reported to NRC on a timely basis, resulted
in one violation of NRC regulatory requirements.
The details are contained
in the subject inspection report which was sent to you by letter dated
December /, 1987. On December 22, 1987, an enforcement conference was held
between Dr. C. J. Paperiello and other members of my staff and you and members
of your staff during which the violations, the root causes, and your corrective
actions were discussed.
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The violation, which is described in the enclosed Notice of Violation and
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Proposed Imposition of Civil Penalty, resulted from a failure to properly
design the automatic throwover function for bus 72CF.
As the design was
implemented, both divisions of the low pressure coolant injection system would
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be inoperable in the event of the failure of Division 1 DC control power
following a large break loss of coolant accident coupled with a loss of offsite
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power.
The Fermi 2 Updated Final Safety Analysis Report, Section 8.3.1.1.4,
describes the design of the automatic throwover function as satisfying the
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"no single failure" criterion.
This design problem resulted in substantial
degradation of the plants ability to respond to that type of accident.
The violation emphasizes the importance of proper system design to ensure
minimum availability of safety equipment.
I have been authorized, after
consultation with the Director, Office of Enforcement, and Deputy Executive
'
Director for Regional Operations, to issue the enclosed Notice of Violation
and Proposea Imposition of Civil Penalty in the amount of Twenty Five Thousand
Dollars (525,000) for the violation described in the enclosed Notice.
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The Detroit Edison Company
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FEB 11 1988
accordance with the "General Statement of Policy and Procedure for NRC
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Enforcement Actions," 10 CFR, Part 2, Appendix C (1987) (Enforcement Policy),
the violation described in the enclosed Notice has been categorized at Severity
Level III.
The base value of a civil penalty for a Severity Level III
violation is S50,000.
The escalation and mitigation factors in the Enforcement
Policy were considered and the civil penalty has been mitigated 50 percent
to recognize your prompt and extensive corrective actions. Although further
mitigation for self identification was not deemed appropriate, you are
encouraged to pursue all technical problems in a similar timely and thorough
manner.
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.
You should also describe your basis
for having confidence that other significant electrical design problems have
not gone undetected. After reviewing your response to this Notice, including
,
your proposed corrective actions, the NRC will determine whether further
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enforcement action is necessary to ensure compliance with NRC regulatory
requirements.
In accordance with Section 2.790 of the NRC's "Rules of Practice," Part 2,
Title 10, Code of Federal Regulations, a copy of this letter and its enclosure
,
will be placed in the NRC Public Document Room.
The response directed by this letter and the enclosed Notice are not subject
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to the clearance procedure of the Office of Management and Budget as required
by the Paperwork Reduction Act of 1980, Pub. L., No.96-511.
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Sincerely,
0riginal cicned by
,
A. Bert Dr.via
A. Bert Davis
Regional Administrator
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Enclosures:
1.
,
Proposed Imposition of
Civil Penalty
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2.
NRC Inspection Report
No. 50-341/87049(DRP)
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See Attached Distribution
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FEB 11 1986
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Distribution
cc w/ enclosures:
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Patricia Anthony, Licensing
P. A. Marquardt, Corporate
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Legal. Department
DCD/DCB (RIDS)
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Licensing Fee Management Branch
Resident Inspector, RIII
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Ronald Callen, Michigan
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Public Service Commission
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Harry H. Voight, Esq.
Michigan Department of Public
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FEB 1 ; 1983
Distribution
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JTaylor, DEDRO
ABDavis, RIII
JLieberman, OE
JLuehman, OE
LChandler, OGC
FIngram, PA
Enforcement Coordinators
RI, RII, RIII, RIV, RV
BHayes, 01
SConnelly, 01A
EJordan, AE00
FMiraglia, NRR
OE File
EA File
State of Michigan