ML20112G371

Part 21 Rept Re Defect in PRC 84-42 Topaz Inverter Low Voltage Shutoff.Initially Reported on 841006.GE Initiating Field Disposition Instruction for Implementing Corrective Action

ML20112G371
Person / Time
Site:	Clinton
Issue date:	01/02/1985
From:	Hall D ILLINOIS POWER CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
REF-PT21-85 U-10236, NUDOCS 8501160319
Download: ML20112G371 (2)

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/LLINDIS POWER COMPANY ~

ggy ,g CLINTON POWER STATION. P.O. 804 678. CLINTON. ILLINOl$ 61727 January 2, 1985 t'

Docket No. 50-461 Mr. James G. Keppler Regional Administrator Region III U. S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137

Subject:

10CFR Part 21 Defect in PRC 84-42 Topaz Inverter Low Voltare Shutoff at Clinton Power Station (21 d4-13)

Dear Mr. Koppler:

In Illinois Power Company's letter to Mr. Frank Jablonski, NRC Region III, (Ref. U-10024, 1606-L, dated January 17, 1983),

Illinois Power agreed to notify Region III of those 10CFR Part 21 defects that affect Clinton Power Station and that were previously reported to the Commission by vendors or contractorn.

In accordance with that agreement, the following information is submitted:

On October 6, 1984, Dr. G. G. Sherwood, Manager of Safety and Licensing Operations, General Electric Compan;', informed the Nuclear Regulatory Commission of a potential defect affecting the Clinton Power Station.

The defect has been identified as an error in adjustment of the low voltage shut-off and turn-on for G.E. dedicated Class 1E inverters (G.E. Drawing 18C4723).

The necessary corrective action and the power plants that have received these inverters have boon identified by General Electric. .

8501160319 850102 PDR ADOCK 05000461 0 PDM JAN 101985 , g ,,

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Mr. James G. Keppler January 2, 1985 General Electric is initiating a Field Disposition Instruction (FDI) for implementing corrective action.

Illinois Power is also conducting an evaluation of the reported condition and will assure that adequate corrective action is taken to resolve the problem.

Sincerely yours,

/

D. P. Hall Vice President JV/cbs (TWARN) cc: NRC Resident Office Illinois Dept. of Nuclear Safety Director, Office of I&E, USNRC, Washington, DC 20555 INPO Records Center