ML20087A836

Part 21 Rept Re Failure of Pacific Air Products Linear Converter.Initially Reported on 840117.Failure Due to Excessive Wear of Brass Shaft Guides on Input & Output Shafts.Investigation Underway

ML20087A836
Person / Time
Site:	Clinton
Issue date:	02/29/1984
From:	Hall D ILLINOIS POWER CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
REF-PT21-84-139-000 PT21-84-139, PT21-84-139-000, U-10132, NUDOCS 8403080240
Download: ML20087A836 (2)

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/LLIN0/S POWER COMPANY 9 ,

CLINTON POWER STATION, P.O. box 678. CLINTON. ILLINOIS 61727 l

February 29,1984 l Docket No. 50-461 l Mr. James G. Keppler Regional Administrator Region III U. S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137

Subject:

10CFR Part 21 Defect in Pacific Air Products Co. Linear Converter at Clinton Power Station (21-84-02)

Dear Mr. Keppler:

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 l defects that affect Clinton Power Station and that were previously I reported to the Commission by vendors or contractors. In accord-ance with that agreement, the following information is submitted:

On January 17, 1984, Mr. Louis R. Hess, President, Pacific Air Products Company, informed the Nuclear Regulatory Commission of a potential defect affecting the Clinton Power Station (copy attached).

Pacific Air Products has identified a failure of a linear converter at a non-nuclear plant (Edgewater Generating Plant).

The report to the NRC states that the preliminary analysis in-dicates that the failure was caused by excessive wear of the brass shaft guides on the input and output shafts.

Attachment "A" of the report identifies the utilities and power plants which receive the Linear Converter Units and the quantities shipped.

MAR 2m 8403080240 840229 DR ADOCK 05000 10

February 29,1984

, $.Mr. Jcmes G. Kepger Pacific Air Products is presently investigating the cause of the excessive wear to the Linear Converter and.is to issue a report of the investigation results within 90 days of the NRC notification.

Illinois Power Company is also conducting an evaluation of the report-ed. condition and will assure that adequate corrective action is taken, including the implementation of the recommended preventative mainten-ance in the PAP Co. letter.

Sincerely yours, D. P. Hall, Vice President GTW/cbs cci- NRC Resident Office Illinois Department of Nuclear Safety Director - Office of I&E USNRC, Washington, DC 20555 INPO Records Center

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