RBG-30879, Submits Interim Response to NRC Bulletin 88-010, Nonconforming Molded-Case Circuit Breakers, Including Updated Traceability Evaluation for 30 Circuit Breakers

Submits Interim Response to NRC Bulletin 88-010, Nonconforming Molded-Case Circuit Breakers, Including Updated Traceability Evaluation for 30 Circuit Breakers

ML20247B172
Person / Time
Site:	River Bend
Issue date:	05/12/1989
From:	Booker J GULF STATES UTILITIES CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
IEB-88-010, IEB-88-10, RBG-30879, NUDOCS 8905240032
Download: ML20247B172 (4)

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GULF ST2RTES UTELITIES COMPANY  ;

wemasmos ran omu W W ST FRANCISVILLL LOdlilANA 70775 AM[ A CODE $04 635 taa4 346 SM1 May 12, 1989 RBG- 30879 File Code G9.5, G9.33.1 U. S. Nuclear Regulatory Commission l Document Control De:;k '

Washington, D.C. 20555 Gentlemen:

River Bend Station - Unit 1 Docket No. 50-458 NRC Bulletin 88-10 This letter provides Gulf States Utilities Company's (GSU) interim  ;

response to NRC Bulletin 88-10, " Nonconforming Molded-Case Circuit l Breakers." In an earlier response dated March 31, 1989, (RBG-30445) GSU stated that it had been unable to complete the traceability evaluation required by the bulletin for 30 circuit breakers (CB.) out of the 1471 breakers that were in GSU's warehouse stock. In accordance with our commitments in that letter, GSU is providing this updated traceability evaluation for those breakers. ,

Two of the 30 CBs were traceable to the circuit breaker manufacturer (CBM) thmugh a standard manufacturer's certificate or conformance. The remaining P8 CBs were unable to be traced using that methodology.

Listed in the attachment to this letter are these 28 CBs along with their respective suppliers and CBMs. In lieu cf a manufacturer's ,

certificate of conformance, GSU opted to pursue the traceability of '

these breakers directly with the CBM of the breakers as determined by physical markings on the breakers. The CBM were requested to recertify the breakers, using a combination of testing and inspections, to prove that the CBs were manufacturered by them and not refurbished. A determination that these CBs wer'e not refebished resolves the original concern that resulted in the issuance of Bulletin 88-10. Nineteen of the 28 have been returned to their manufacturer for this decertification. In all cases, through a combination of testing and inspection, these CBs have been certified by the CBM as not being refurbished. Documentation supplied by these CBM recertifications provides the required traceability of these 19 CBs to the CBM in accordance with Bulletin 88-10.

8905240032 890512 PDR ADOCK 05000458  %

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l Negotiations with the CBM (GE) for the remaining nine CBs are ongoing.

GSU will have these CBS decertified or tested in accordance with Bulletin 68-10 requirements and report the results to the NRC by June 28, 1989. GSU is extremely confident that these nine CBs were not refurbished.

If you have any questions or desire further information, please contact Mr. L. L. Dietrich of my staff at (409) 839-3011.

Sincerely, a f. f f J. E. Booker Manager-River Bend Oversight River Bend Nuclear Group Attachment cc: D. S. Nuclear Regulatory Commisssion Region IV 611 Ryan Plaza Drive, Suite 1000 Arlington, TX 76011 NRC Senior Resident Inspector P.O. Box 1051 St. Francisville, LA 70775 1

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UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION STATE OF LOUISIANA )

-PARISH OF WEST FELICIANA )

Docket No. 50-458 In the Matter of )

GUL1' STATES UTILITIES COMPANY )

(River Bend Station - Unit 1)

AFFIDAVIT J. E. Booker, being duly sworn, states that he is Manager-River Bend Oversight for Gulf States Utilities Company; that he is authorized on the part of said company to sign and file. With the Nuclear Regulatory Commission the a documents attached hereto; that he !!as read all of the statements contained in such documents attached thereto and made a -part thereof; and that all such statements made and.

matters set forth therein are true and correct to the best of his knowledge, information and belief.

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[J. E. Booker [

Subscribed and sworn to before me, a Notary Public in and for the State and Parish above named, this /c0

• day of TY)a42 , 19 29 . My Commission expires with Life.

0 01 audiA kiwat Notary Public in and for West Feliciana Parish, Louisiana

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ATTACMENT-Safety-Related Molded Case Circuit Breakers Traced Through Alternate Means

< <CBM' NUMBER OF CBs- VENDOR'.

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GE* 9* Elgar Corporation Heinemann 7 G. A. Technology L.

Gould/ITE 6- 8. B. C. Brown Boveri ~

ITE Pushmatic 2 Comsip Incorporated Heinemann 2 T. D. Is

, Square D 2 Thermon Total 28

• Remaining to be traced or tested

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