ML20207J140

Forwards Insp Rept 50-341/99-02 on 990111-29 & Notice of Violation.One Violation Identified in Area of Design Control.Violation of Concern Because Errors Existed in Three of Six Calculations Reviewed

ML20207J140
Person / Time
Site:	Fermi
Issue date:	03/08/1999
From:	Jeffrey Jacobson NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:	Gipson D DETROIT EDISON CO.
Shared Package
ML20207J144	List: IR 05000341/1999002 ML20207J140 ML20207J153
References
50-341-99-02, 50-341-99-2, NUDOCS 9903160198
Download: ML20207J140 (2)

See also: IR 05000341/1999002

Text

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March 8, 1999

e

Mr. D. R. Gipson

Senior Vice President  !

Nuclear Generation

The Detroit Edison Compar y

6400 North Dixie Highway '

Newport, MI 48166

SUBJECT: NRC INSPECTION REPORT 50-341/99002 (DRS) AND NOTICE OF

VIOLATION ,

Dear Mr. Gipson:  ;

f

On January 29,1999, the NRC completed an inspection of your Enrico Fermi, Unit 2, Nuclear 1

Generating Plant. The inspection was conducted from January 11 through January 29,1999.  !

At the conclusion of the inspection on January 29,1999, the inspection results were discussed 'I

with members of your staff.  ;

t

Areas examined during the inspection are identified in the report. The inspection included an

assessment and evaluation of engineering support, design change and modification activities  ;

including 10 CFR 50.59 evaluations and screenings, as well as corrective action and intemal

assessment activities. Within these areas, we selectively observed activities in progress, '

reviewed procedures and representative records, observed plant conditions, and discussed  !

activities and cor. ems with members of your staff.

Overall, our inspection results indicated that engineering and problem correction activities at the i

Fermi Plant were effective. In r.1ost cases, the recently implemented corrective action system '

appeared to be working well. One violation was identified during the inspection in the area of

design control. This violation contains three examples of calculation errors, which indicated

possible problems in the overall control and accuracy of engineering calculations. Although two l

'

of the errors occurred some time ago, there were opportunities to detect and correct these ,

errors when the calculations were recently revised.

!

The violation is cited in the enclosed Notice of Violation (Notice), and the circumstances

surrounding it are described in detailin the enclosed report. The violation is of concem because  !

errors existed in three of the six calculations reviewed. Although Technical Specification

requirements were not exceeded, margins for conservatism were substantially reduced.

Please note that you are required to respond to this letter and should follow the instructions in

the enclosed Notice when preparing your response. In your response please indicate the

actions you are taking to identify and correct potential errors in other existing calculations. The

NRC will use your response, in part, to determine whether further enforcement actions are

necessary to ensure compliance with regulatory requirements.

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9903160198 990308

PDR ADOCK.05000341

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D. Gipson . -2-

in accordance with 10 CFR 2.790 of the NRC'," Rules and Practices," a copy of this letter, the

enclosures, and your response to the letter will be placed in the NRC Public Document Room

(PDR).-

We will gladly discuss any questions you have conceming the inspection.

Sincerely,

'

Original /s/ John M. Jacobson  !

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- John M. Jacobson, Chief

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,

Mechanical Engineering Branch j

Docket No.: 50-341

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Licensee No.: NPF-43

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Enclosures: Notice of Violation i

inspection Report 50-341/99002 (DRS) j

^

cc w/encis: N. Peterson, Director, Nuclear Licensing

,

P. Marquardt, Corporate Legal Department  ;

,

R. Gaston, Compliance Supervisor

R. Whale, Michigan Public Service Commission

Michigan Department of Environmental Quality .

Monroe County, Emergency Management Division  !

'

Emergency Management Division, MI Department

of State Police

,

Distribution:

CAC (E-Mail)

RPC (E-Mail)

Project Mgr., NRR w/encls

J. Caldwell, Rlli w/encls

B. Clayton, Rlli w/encls

             SRI Fermi w/encis                                                                                 B
            - DRP w/encls
              DRS (2) w/encls .
            - Rlli PRR w/encls
              PUBLIC IE-01 w/encls
              Docket File w/encls
             GREENS
              LEO (E-Mail)
             DOCDESK (E-Mail)
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              DOCUMENT NAME: G:DRS\FER99002.wpd
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               DATE        03/4/9(        Q  l 9    03 6/99                03/(199  /\ \ 03/ /09
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