ML20140G136

Requests Review of Allegation Re Repair of Alleged Improper Insulation Matl Used to Seal Around Small Bore Piping Inside Penetration Sleeves to Determine Validity of Concerns. Summary of Allegation Encl

ML20140G136
Person / Time
Site:	Perry
Issue date:	03/26/1986
From:	Norelius C NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:	Edelman M CLEVELAND ELECTRIC ILLUMINATING CO.
References
NUDOCS 8604010284
Download: ML20140G136 (3)

Text

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MAR 261986 Docket No. 50-440 Docket No. 50-441 The Cleveland Electric Illuminating Company ATTN: Mr. Murray R. Edelman Vice President Nuclear Group Post Office Box 5000 Cleveland, OH 44101 .

Gentlemen:

Region III has received an allegation concerning the repair of alleged improper insulation material used to seal around small bore piping inside penetration sleeves and the repair of the alleged improper caulking material used to seal.

around small bore pipe clusters at wall penetrations. A summary of this allegation is enclosed for your review.

We are requesting that you review this allegation to determine the validity and significance of the concerns. We further request that the results of your review and disposition of these concerns be submitted to Region III by April 30, 1986. Documentation supporting your results should be maintained onsite for further inspection by Region III.

Your cooperation in this matter is appreciated. Should you have any questions with regard to this matter, please do not hesitate to call me or Mr. R. C. Knop (312/790-5547).

Sincerely, appjgind SipedI.7"2 0 2 ~ n Charles E. Norelius, Director Division of Reactor Projects

Enclosure:

Description of Allegations i

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m The Cleveland Electric Illuminating MAR 261986 Company cc w/ enclosure:

J. J. Waldron, Manager, Perry

' Plant Technical Department M. D. Lyster, Manager, Perry Plant Operations Department L. 0. Beck,-General Supervising Engineer, Nuclear Licensing and Fuel Management Section DCS/RSB (RIDS)

Licensing Fee Management Branch Resident Inspector, RIII Harold W. Kohn, Ohio' EPA Terry J. Lodge, Esq.

James W. Harris', State of Ohio Robert H. Quillin, Ohio Department of Health RIII -

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I ALLEGATION

SUMMARY

The first cor.cern revolves.around what were called " mechanical penetrations" in either the containment or drywell where " insulation material" between the piping and a sleeve was alleged to be faulty. It was reported that the sleeves were approximately 3" and the piping 2-7/8" in diameter. The material had to be dug out and this was alleged to be very difficult because of the small annular space that was filled with insulation material. The alleger indicated that approximately 2000 of these penetrations had to be fixed and did not believe that they all were fixed.

The second concern revolves around small bore piping approximately 2" in diameter which are in clusters of 50 to 60 pipes at a penetration through a wall. The wrong type of caulking material was alleged to have been used to seal around the piping cluster. Again the material was reported to have had to be dug out and "it was like digging concrete with a knife". It was speculated that this piping may have been the control rod drive system piping. The alleger also did not think this work had been completed, but was aware that 10% of the work had been done.

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