ML20153D720

Forwards Insp Repts 50-454/98-17 & 50-455/98-17 on 980714-0824 & Nov.Violation Involves Failure to Maintain Main Control Room Ventilation Envelope Configuration Due to Inadequacies in Ventilation Barrier Impairment Process

ML20153D720
Person / Time
Site:	Byron
Issue date:	09/18/1998
From:	Grant G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:	Kingsley O COMMONWEALTH EDISON CO.
Shared Package
ML20153D724	List: IR 05000454/1998017 ML20153D720 ML20153D770
References
50-454-98-17, 50-455-98-17, NUDOCS 9809250157
Download: ML20153D720 (3)

See also: IR 05000454/1998017

Text

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801 WARRENVILLE ROAD

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Mr. Oliver D. Kingsley

President, Nuclear Generation Group

Commonwealth Edison Company

ATTN: Regulatory Services

Executive Towers West lli

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1400 Opus Place, Suite 500

. Downers Grove, IL 60515

SUBJECT: BYRON INSPECTION REPORT 50-454/98017(DRP); 50-455/98017(DRP)

AND NOTICE OF VIOLATION

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'l Dear Mr. Kingsley:

On August 24,1998, the NRC completed an inspection at the Byron 1 and 2 reactor facilities.

The enclosed report presents the results of that inspection.

During this inspection period, we noted that control room activities were consistently performed

in a professional manner. This was most evident by your response to the Unit i loss of offsite

power event. We observed effective oversight by operations department management and

strong command and control throughout the event recovery.

However, we are concemed with the trend in configuration control events. Since  !

January 1998, you have identified numerous examples of failure to maintain control of the

configuration of plant systems and equipment, most of which involved nonsafety-related

balance of plant systems and did not result in adverse safety consequences. While we

recognize that you are in the process of developing a comprehensive corrective action plan to

address the issue, we are concemed that to date, your corrective actions have not been

effective at arresting the trend of configuration control events.

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One violation of NRC requirements was identified during this inspection period. This violation

involves the failure to maintain the main control room ventilation envelope configuration due to

inadequacies in your ventilation barrier impairment process. The violation is cited in the

enclosed Notice of Violation (Notice) and the circumstances surrounding it are described in

detailin the enclosed report. The NRC has concluded that information regarding the reason

for the violation,- the corrective actions taken and planned to correct the violation and prevent

recurrence is already adequately addressed on the docket in Licensee Event Report (LER) -t

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50-454/98016, dated August 6,1998. Therefore, you are not required to respond to this letter

unless the description therein does not accurately reflect your corrective actions or your t

- position. In that case, or if you choose to provide additionalinformation, you should follow the

instructions specified in the enclosed Notice.

9809250157 980918 k

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O. Kingsley -2- 1

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In accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of this letter and its

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enclosures will be placed in the NRC Public Document Room.

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

Sincerely,

/s/Geoffrey E. Grant

,

Geoffrey E. Grant, Director

Division of Reactor Projects

Docket Nos.: 50-454;50-455

License Nos.: NPF-37; NPF-66

Enclosures: 1. Notice of Violation ,

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2. Inspection Report 50-454/98017(DRP);

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50-455/98017(DRP)

cc w/encis: M. Wallace, Senior Vice President

D. Helwig, Senior Vice President

G. Stanley, PWR Vice President

J. Perry, BWR Vice President

D. Farrar, Regulatory

Services Manager

i 1. Johnson, Licensing Director

DCD - Licensing

K. Graesser, Site Vice President

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D. Wozniak, Acting Station Manager

B. Adams, Regulatory Assurance Manager

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Richard Hubbard

Nathan Schloss, Economist

Office of the Attomey General

State Liaison Officer

State Liaison Officer, Wisconsin

Chairman, Illinois Commerce

Commission

DOCUMENT NAME: G:\BYRO\BYR98017.DRP

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To receive a copy of this document, indicate in the box "C" = Copy w/o attach /enci"E" =

Copy w/ attach /enci "N" = No copy

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l. Distribution:

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Project Mgr., NRR w/encls

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! C. Pederson, Rlli w/encls '

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SRI Byron w/encls

DRP w/encls

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DRS (2) w/encls

Rill PRR w/encls

PUBLIC IE-01 w/encls

Docket File w/encls ,

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