ML20077B566

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Interim Deficiency Rept Re Linear Indications on Base Metal on Guyon 1/2-inch Socket Couplings.Initially Reported on 830617.Investigation Continuing.Next Rept Will Be Submitted by 831014
ML20077B566
Person / Time
Site: Wolf Creek Wolf Creek Nuclear Operating Corporation icon.png
Issue date: 07/15/1983
From: Koester G
KANSAS GAS & ELECTRIC CO.
To: Seidle W
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
10CFR-050.55E, 10CFR-50.55E, KMLNRC-83-090, KMLNRC-83-90, NUDOCS 8307250322
Download: ML20077B566 (1)


Text

KANSAS GAS AND ELECTRIC COMPANY THE ELE'CTFMC COMPANY #

GLENN L MOESTEM wct retssothT - Nucitae July 15, 1983 Mr. W.C. Seidle, Chief H

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Reactor Projects Branch 2

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Region IV 1

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611 Ryan Plaza Drive, Suite 1000

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KMLNRC 83-090 Re:

Docket No. STN 50-482 Subj: Potential 10CFR50.55(e) Report - Guyon 1/2" Socket Couplings

Dear Mr. Seidle:

This letter provides an interim report on a potential 10CFR50.55(e) matter concerning linear indications in the base metal of 1/2 inch weld couplings. This matter was initially repor ted by Mr. Otto Maynard of Kansas Gas and Electric Company to Mr. William Johnson of the Nuclear Regulatory Commission, Region IV, on June 17, 1983.

During installation of two 1/2-inch stainless steel couplings, linear indications were discovered visually in the base metal which extended to the toe of the weld. This condition was documented on a nonconformance report and an investigation was initiated to locate any other suspect couplings. The couplings in question are 1/2-inch 3000 pound SA304 stain-less steel with heat code CLU supplied by Guyon.

Investigation has revealed that 50 of the couplings had been purchased and 35 had been issued to the field. The remaining 15 have been placed on hold. Of the 35 issued, 28 have been located and efforts are under-way to locate the remaining 7.

The status of the evaluation and resolution of this concern will be reported to you on or before October 14, 1983.

In the interim, please direct any questions concerning this subject to me or to Mr. Otto Maynard of my staff.

Yours very truly, d'ZS GLK:bb cc: RCDeYoung HRoberds/WSchum 8307P50322 830715 d D -27

/0 PDR ADOCK 05000482 S

PDR 201 N. Market ~ Wichita, Kansas - Mail Address: PO. Box 208 I Wichita, Kansas 67201 - Telephone: Area Code (316) 2616451