ML19305E112

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Interim Deficiency Rept Re Piping Min Wall Thickness.Review of Weld & Base Metal Repair Records Is Continuing.Another Progress Rept Will Be Submitted by 800620
ML19305E112
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 04/15/1980
From: Gary R
TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:
References
TXX-3123, NUDOCS 8004220423
Download: ML19305E112 (1)


Text

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TEXAS ' UTILITIES GENERATING COMPANY 2001 DRYAN 1T)WER

  • DALIAN. TEXAS 75208 a.s.can, April 15, 1980

"'lls",;1' '"J.',' TXX-3123 Mr. W. C. Seidle, Chief Reactor Construction & Engineering Support Branch U. S. Nuclear Regulatory Comission Office of Inspection & Enforcement 4 611 Ryan Plaza Dr., Suite 1000 Docket Nos. 50-445 Arlington, Texas 76012 50-446 COMANCHE PEAK STEAM ELECTRIC STATION ,

1981-83 2300 MW INSTALLATION PIPING MINIMUM WALL FILE N1: 10110

Dear Mr. Seidle:

This progress report supplements our letters TXX-3088 and TXX-3092, dated January 14 and 23, 1980, respectively, relative to a violation of piping

minimum wall thicknesses previously reported to your office in accordance

, with 10.CFR 50.55(e).

a A total of twenty (20) safety-related systems had welds evaluated based j .on either physical or ultrasonic testing measurements. Of the systems i evaluated, five (5) systems had measured wall thicknesses equal to or

greater than the specified minimum wall requirement. Those systems are the

Service Air 4 Instrument Air Steam Generator Blowdown and Cleanup Vents and Drains Liquid Waste Processing The review of weld and base metal repair records is continuing and a sub-sequent progress report will be submitted to your office by June 20, 1980.

Very truly yours, A?

. . Gary RJG:df cc: NRC Region IV (0 + 1 copy)

Director, Inspection & Enforcement (15 copies) c/o Distribution Services Branch, DDC, ADM.

U. S. Nuclear Regulatory Commission Washington, D. C. 20555 8 0 0 4 2 2 0't>3 4