Text

Forwards Table Listing Status of Actions to Address NRC Bulletin 88-010 Re Installation of molded-case Circuit Breakers Supplied by Farwell & Hendricks & Nutherm Intl
	ML20084U786
Person / Time
Site:	LaSalle
Issue date:	04/16/1991
From:	Piet P; COMMONWEALTH EDISON CO.
To:	; NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
	IEB-88-010, IEB-88-10, NUDOCS 9104220293
	Download: ML20084U786 (7)
	v • d • e

_ - _ _ _ - _ - _ _ _..

/

C:mmenw:alth Edison

/

) 1400 Opus Place (C -

Downers Grove, Illinoir. 60515 April 16, 1991 U.S. Nuclear Regulatory Commission Attn: Document Control Dest Washington, D.C.

20555

Subject:

LaSalle County Station Units 1 and 2 Status of HRC Bulletin 88-10 HRC_Dochet Josm50-373 and_50-37A

Reference:

(a)

H.E. Morgan letter to USNRC, dated November 14, 1990.

Gentleman:

Reference (a) provided a status report regarding the schedule for the breaker replacements as outlined in LaSalle County Station's response to NRC Bulletin 88-10. As outlined in the response, LaSalle expected to complete the installation of the remainder of the breakers by the end of LIR04 for Unit 1 (April 1991) and L2R04 for Unit 2 (March 1992).

However, the ITE/SIEMENS breakers could not be replaced during the LIR04 outage due to activities related to environmental qualification.

The remainder of the breakers to be installed during LlR04 have been replaced.

The attached Tables delineate the current actions being performed and the new estimated schedule for installation of the breakers.

LaSalle County Station is currently pursuing the necessary environmental qualifications for the ITE/SIEMENS breakers to support installation.

A systematic online program for the breakers consistent with safe plant operation will be initiated pending the successful completion of the qualification testing.

It is Commonwealth Edison's (CECO) expectation to complete all circuit breater installations in advance of LIR05 for Unit 1 (December 1992) and by the end of L2R04 for Unit 2 (April 1992).

Ceco's Engineering Department currently has documented justifications for continued operation valid through LaSalle Unit 1 Reload 5 and LaSalle Unit 2 Reload 4.

Please direct any questions you may have concerning this submittal to this office.

Very truly yours, b

Peter L. Piet Nuclear Licensing Administrator Attachment cc: A.B. Davis - Regional Administrator, Regional 111 Senior Resident inspector - LaSalle County Station J. Hickman/B. Siegel - NRR, Project Manager p

c.

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04/C'./91 TASLE 1

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MOLDED CASE CIROJ1T 88EAKERS REQUIRED TO DE INSTALLED 15 oc,,,,,,,

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RESPONSE TO WRC BULLET 14 af 88-10 74.5M" SREAKERS SUPPLIED 8? FAstELL & MEaeERICKS (SEE NOTE 1)

Lae999 See 9W St/91/93 STORES TO SE STATUS / REPLACEMENT I T E",1 MODEL INSTALLED 04 SCHEDULE.

MtssBER MANUFACTURER tRsq0ER OPTIONS REPLACEMENT LOCATItus WORK REQtKST (uCTE 2)

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791A58 WESTINCMOUSE MFs2100L WITH AUK SW1TCN FOR STOCK ONLY 791358 WESTINCMOUSE MFS2000L asouE FOR STOCK OnLY

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Page No.

3 04/08/91 TABLE TWO MOLDED CASE CIRCUIT BREAKERS REQJfRED TO BE INSTALLED IN RESPONSE TO NRC BULLET!k 8 83-10 BREAYERS SUPPLIED BY NUTwtRM INTERNATIONAL (SEE NOTE 3)

TO BE STATUS / INSTALLATION STORES ITEM MODEL REPLACEMENT INSTALLED SCMEDULE NUMBER MANUFACTURER NUMBER LOCATION BY WORK REQUEST (NOTE 4)

REMARKS z

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===.

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.._..____sm.33===

1AP83r, COMP G1(29,31) t-99730 (1R05p PRor0 SED RECEIPT DATE IS NOW.

1991 NEAT TRACING M-O SWPLE LINES 772A35 SEIMENS/ITE B02-8020 FOR STOCK ONLY 792835 SE1 MENS /ITE B32-8030 EOR STOCK ONLY PROPOSED RECEIPT DATE IS NOV.

792C35 SE!" ENS /ITE 803-8015 2APTBE, C W P Et L-94219 L2R04P 1991 MEAT TRACING M-O SAMPLE LINES 2AP75E, COMP F1 t-94222 L2R04P PROPOSED RECEIPT CATE IS NOV.

1991 MEAT TRACING n-O SAMPLE LINES 1AP78E, COMP E1 L-97777 L1R05F PROPOSED RECEIPT DATE IS NOV.

1991 MEAT TRACING l

N-O SA# tt LINES M2D35 SEIMENS/ITE 803-8020 FOR STOCK ONLY 772E35 SE! MENS /ITE SQ3-8030 FOR STOCE ONLY 792F35 SE! MENS /ITE EH3-8015 1/

FOR STOCK outY 772G35 SE! MENS /11E fxD-63150 2/

FOR STOCK ONLY

. _ _ _ _

ML20084U786

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