ML19354D448

Advises That Acceptable Led Not Found & Mfg Cannot Create Led to Satisfy Human Factors Needs.Evaluation of Options Continues & Util Will Notify NRC of Progress by 900115

ML19354D448
Person / Time
Site:	Byron
Issue date:	11/01/1989
From:	Chrzanowski R COMMONWEALTH EDISON CO.
To:	Murley T Office of Nuclear Reactor Regulation
References
0361T, 361T, NUDOCS 8911090128
Download: ML19354D448 (1)

Text

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m') ,' 72.Commonwealth Edison

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!t November 1, 1989 .

1 Dr. Thomas E..Murley, Director ,

' Office of Nuclear Reactor Regulation ,

U.S. Nuclear Regulatory Commission

• Hashington, DC 20555 .;

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Subject:

Byron Station Units 1.and 2 DCRDR Implementation NRC Docket Nos. 50-454 and 50-455 .)

Reference:

(a) June 30, 1989, letter from R. A. Chrzanowski to ,

.1. E. Murley l L

Dear Dr. Murley:

Reference (a) contained an update oit the implementaticn progress of  ;

.the four Human Engineering Deficiencies (HEDs) that'werc extended at Byron

, Station with permission from the NRC. Two of the HEDs detailed'the previously L -identified problem regardin'g the lack of lamp test capability and the  !

excessive light bulb replacement rate.

The Commonwealth Edison Nuclear Engineering Department has spent a large amount of resources-attempting to develop an acceptable LED to replace f

the. incandescent bulbs that are currently used in the main control room for indication. 'To date, an acceptable LED.has not been found nor can the-manufacture create an LED that satisfies the Human Factors needs for this

's application. Commonwealth Edison is continuing to evaluate. options and will inform the NRC of the progress by January 15, 1990.

Please direct any questions regarding this matter to this office.

Very truly yours, fY R. A. hrzanowsk

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, Nuclear Lic nsing Administrator 0361T:1 i

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cc: ' Byron %sident Inspector L. N. 01shan - NRR-

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