ML20055C754

Forwards Maint Team Insp Repts 50-456/90-08 & 50-457/90-08 on 900416-20 & 0430-0504 & Notice of Violation.Overall Insp Concluded That Implementation of Maint Program Adequate

ML20055C754
Person / Time
Site:	Braidwood
Issue date:	06/15/1990
From:	Miller H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:	Reed C COMMONWEALTH EDISON CO.
Shared Package
ML20055C755	List: IR 05000456/1990008 ML20055C754 ML20055C756
References
NUDOCS 9006250053
Download: ML20055C754 (3)

See also: IR 05000456/1990008

Text

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JUN 151990

Docket No. 50-456

Docket No. 50-457-

Commonwealth Edison Company

ATTN: Mr. Cordell Reed'

Senior Vice President

Post Office Box 767

Chicago, IL 60690

Gentlemen:

This letter refers to the special maintenance team inspection conducted by

Mr. H.'A. Walker and others of this office on April 16 through 20, and April 30

through May 4, 1990. During this inspection, we evaluated. activities at the

Braidwood Nuclear Generating Station, Units 1 & 2, authorized by NRC Operating

License No. NPF-72 and NPF-77. We discussed our inspection findings with

Mr. R. E. Querio and others of your staff on May 10, 1990.

The inspection was conducted while Unit I was in operation and during the Unit

2 refueling outage to assess and evaluato your support to and implementation of

maintenance and engineering to assure that plant structures, systems, and

components reliably perform on demand. Wt evaluated various activities to

determine if maintenance and engineering were accomplished, effective, and

adequately assessed by your own quality ver;fication process.

The enclosed copy of our inspection nport iden'ifies specific areas examined.

during the inspection. Within these a eas, we selectively examined procedures

and representative records, made observations, and had interviews with your

personnel. In an attempt to focus on th0se activities that are most risk

significant, we used insights from a Probcbilistic Risk Assessment study

performed by the NRC to select systems and components important to safety.

Overall, the inspection team concluded that implementation of the maintenance

program at the Braidwood Nuclear Generating Station was good. Section 5.0 of

the inspectien report provides a synopsis of the effectiveness of your

maintenance p ograms.

The team identified strengths as well as weaknesses in the implementation of

the maintenance programs. Some of the more significant strengths were: (1)

-experienced management committed to good maintenance; (2) personnel committed

to compliance with procedures that are well-written; (3) very low accumulated

radiation dose; (4) excellent computer-based systems for trending and tracking;

and (5) innovative and practical methods for improving maintenance such as a

video mapping system and a micro-electronic surveillance'and calibration system

(MESAC). There were no significant weaknesses identified.

During this ii.:pection, we determined that certain of your activities appeared

to be in violation cf NRC requirements, as specified in the enclosed Notice. A

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Commonwealth Edison Company- 2 M 1 5 1990

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written response is required. In accordance with 10 CFR 2.790 of the

. Commission's regulations, a copy of this letter, the enclosures, and your

response to this letter will be placed in the NRC Public Document Room. 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 required

by the Paperwork Reduction Act'of 1980, PL 96-511.

We will gladly discuss any ~ questions you have concerning this inspection.

Sincerely,

H. J. Miller, Director

Division of Reactor Safety-

Enclosures:

1. Notice of. Violation

2. Inspection Reports

No. 50-456/90008(DRS);

No. 50-457/90008(DRS)

See Attached Distribution

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cc w/ enclosures:-

T. J. Maiman, Vice President,

PWR Operations

- T. Kovach, Nuclear

Licensing. Manager

S. Hunsader, Nuclear

Licensing Administrator

R. E. Querio. Station Manager

1 - D. Miller, Regulatory

Assurance Supervisor

DCD/DCB(RIDS)

Licensing Fee Management Branch

Resident Inspector, RIII

Braidwood

- Resident Inspector, RIII Byron

D. W. Cassel, Jr., Esq, '

Richard Hubbard j

J. W. McCaff rey,' Chief, Public

-

Utilities Division

H. S.LTaylor,-Quality Assurance

Division s

E. Chan,c0GC

G.. Berry,-0GC

l -. - Stephen P. Sands, NRR

Robert-Newmann, Office of Public

Counsel, State of Illinois

-Commissioner Curtiss, OCM/JC

T. Foley, NRR/LPEB

Director,'DRS

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