ML20244C746

Forwards Safety Insp Repts 50-454/89-09 & 50-455/89-06 on 890227-0316 & Notice of Violation.Results of Insp Indicated Some Weaknesses in Areas of Design Control & post-mod Testing

ML20244C746
Person / Time
Site:	Byron
Issue date:	04/13/1989
From:	Miller H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:	Reed C COMMONWEALTH EDISON CO.
Shared Package
ML20244C749	List: IR 05000454/1989009 ML20244C746 ML20244C751
References
NUDOCS 8904200396
Download: ML20244C746 (3)

See also: IR 05000454/1989009

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APR 131989

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Docket No. 50-454

Docket No. 50-455

Commonwealth Edison Company

ATTN: Mr. Cordell Reed'

Senior Vice-President

Post Office Box 767

Chicago, ILu 60690

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Gentlemen:

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This refers' to the routine safety inspection conducted by Mr. R.. A. Hasse,

Ms. A. M. Bongiovanni, and Ms. V. P. Lougheed of. this office on February 27

through March 16, 1989, of activities at Byron Nuclear Power Station, Units li

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and.2 authorized by NRC Operating Licenses No. NPF-37 and NPF-66 and to the

discussion of our findings with Mr. R. Pleniewicz and others of your staff

at t~ne conclusion of the inspection.

The purpose of this inspection was to determine if design changes and

modifications and the dedication of commercial grade equipment for ,

safety-related applications were being conducted in accordance with

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regulatory ~ requirements. Within these areas, the inspection consisted  !

of a selective examination of procedures and representative records,

observations, and interviews with personnel.-

The results of this inspection indicated some weaknesses in the areas of design

control and post modification testing. It appeared that this was due, in part, ,

'to a weakness in communications between the large number of organizations  ;

involved in the design change process. Several examples of problems noted i

were: failure to seismically qualify several valves installed in a j

modification to MSIV accumulator test connections; failure to convey critical i

preventative maintenance requirements for diesel general governor circuit

relays; and, failure to fully test a modification installing a time delay

relay.in the auxiliary feedwater pump trip logic.

We were also concerned with the apparent lack of understanding of the intent

of 10 CFR Part 50, Section 50.59 and the lack of a well-structured program ,

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for dedicating commercial grade equipment for safety-related applications.

We were encouraged by our review of several recent audits performed by your

quality assurance organizations in that they had identified several concerns

similar to'those identified during this inspection. This indicates that your

audit program is effective in identifying problems.

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8904200396 SoO413  ;

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PDR ADOCK 05000454

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APR13 1999

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Commonwealth Edison Company 2

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During this inspection, certain of your activities appeared to be in violation

of NRC requirements, as specified in the enclosed notice. A written response

is required.

We also request that you respond to the open items identified in Paragraphs

3.b(1) (design control), 3.b.(2) (Post Modification Testing), and 4.c

(dedication of commercial grade equipment for safety-related applications) of

the attached Inspection Report. In responding, we request you address how

such problems are occurring in view of your Modification Program enhancements.

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,

.ORIGli:AL SIGNED BY MBEM L MG1R

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Hubert J. Miller, Director

Division of Reactor Safety l

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Enclosures:

1. Notice of Violation j

2. Inspection Reports l

No. 50-454/89009 DRS ; l

No. 50-455/89006 DRS ,

See Attached Distribution

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RIII RIII RIII

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RIII .

RLI RI I

Ha h/j O BokgYovahi LokheI0 P i r

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Distribution

cc w/ enclosures:

T. J..Maiman, Vice President,

-PWR Operations

'T. Kovach,-Nuclear

Licensing Manager

R.EPleniewicz, Station Manager

DCD/DCB(RIDS)'

Licensing Fee Management' Branch

Resident Inspectcr, RIII Byron

Resident Inspector, RIII

Braidwood

D. W. Cassel, Jr. , Esq.

Richard Hubbard

J. W. McCaffrey, of.ief, Public

. Utilities Division

Diane Chavez, DAARE/ SAFE-

.L. 01shan,_NRR LPM

H.. S. Taylor,- Quality Assurance

Division

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