ML20244C494

Forwards Safety Insp Repts 50-454/89-10 & 50-455/89-12 on 890401-0517.No Violations Noted.Physical Inoperability of Diesel Generator 1A Discussed in Rept

ML20244C494
Person / Time
Site:	Byron
Issue date:	06/06/1989
From:	Greenman E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:	Reed C COMMONWEALTH EDISON CO.
Shared Package
ML20244C497	List: IR 05000454/1989010 ML20244C494
References
NUDOCS 8906140352
Download: ML20244C494 (2)

See also: IR 05000454/1989010

Text

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JUN 8 1989

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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, IL 60690

Gentlemen:

This refers to the routine safety inspection conducted by Messrs.

P. G. Brochman, L. N. 01shan, G. L. Pirtle and Ms. N. V. Gilles of this

office from April 1 through May 17, 1989, of activities at Byron Station

Units 1 and 2, authorized.by NRC Operating Licenses No. NPF-37 and

No. NPF-66, and to the discussion of our findings with Mr. R. Ward and

others of your staff at the conclusion of the inspection.

cThe enclosed copy of our inspection report identifies areas examined during

the inspection. -Within these areas, the inspection consisted of a selective

examination of procedures and representative records, observations, and

' interviews with personnel.

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No violations of NRC requirements were identified during the course of this

inspection. However, an event which is discussed in paragraph 4, and involves

. the physical inoperability of the 1A Diesel Generator (DG), is of concern to

the NRC. The NRC has evaluated this event and concluded that the

circumstances do not warrant the issuance of a Notice of Violation.

The NRC believes that your staff had taken reasonable precautions to ensure

that the DG should not have become inoperable during its painting. .However.

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after the painting was completed, the decision not to perform a routine

I surveillance, within at least 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />, to ensure that the DG had in fact

remained operable, especially in light of the painting problem experiences

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on the IB DG, was imprudent and non-conservative.

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L in accordance with 10 CFR 2.790 of the Commission's regulations, a copy of

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this letter and the enclosure will be placed in the NRC Public Document Room.

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,  ; Commonwealth Edison Company- 2

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JUN 's 1989

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

Sincerely,

Edward G.. Greenma , Diret: tor

Division of Reactor Projects

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Enclosure: Inspection Reports

No. 50-454/89010 DRP ;

No. 50-455/89012 DRP

cc w/ enclosure:

T. J. Maiman, Vice President,

PWR Operations

T. Kovach, Nuclear

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' Licensing Manager

R. Pleniewicz, Station Manager

DCD/DCB (RIDS)

Licensing Fee Management Branch

Resident Inspector, RIII Byron

Resident Inspector, RIII

Braidwood

D. W. Cassel, Jr. , Esq.

Richard Hubbard

J. W. McCaffrey, Chief, Public

Utilities Division

Diane Chavez DAARE/ SAFE

L. 01shan, NRR, LPM

H. S. Taylcr; Quality Assurance

Division

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