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Discusses Status of NRC Bulletin 88-010 & Forwards Tables Delineating Current Actions Being Performed
	ML20058J007
Person / Time
Site:	LaSalle
Issue date:	11/14/1990
From:	Morgan W; COMMONWEALTH EDISON CO.
To:	; NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
	IEB-88-010, IEB-88-10, NUDOCS 9011270018
	Download: ML20058J007 (8)
	v • d • e

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',a Common :alth Edison 4

1400 Opus Pitee Downers Grove, Illinois 60515 November 14,1990 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk 1

Washington, D.C. 20555 j

Subject:

LaSalle County Station Units 1 and 2 Status of NRC Bulletin 88-10 NBO_DocketBos30-313 and3041L_

Reference:

W.E. Morgan letter to U.S. NRC dated July 9,1990.

Dear Sir:

)

Reference (a) provided a status report regarding the schedule for the breaker replacements as outlined in LaSalle County Station s response to NRC Bulletin 8810.

As outlined in the response it was estimated that the remainder of the breakers to be installed could be accom lished by October 31,1990. This estimate was based on availabillt of qualified r lacement breakers and the assumption that the breakers could be stalled during plant operation.

During further review by the operations and planning departments, certain breakers were found to require a planned or forced outage. Also, additional breakers could not be qualified by similarity analysis and therefore require full qualification testing. These testing and installation constraints have delayed breaker replacement.

The following attached Tables delineate the current actions being perform 9d and the new estimated schedule for delivery of the breakers. Based on the attar' Q schedule and the successful full c ualification testing, the installation of the remamder of the breakers will be accomplishec by the end of L1R04 for Unit 1 (April 1991) and l

L2R04 for Unit 2 (March 1992).

Currently, Commonwealth Edison's Engineering department has documented JCO's valid through the end of each units fourth refueling outage as stated above.

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9011270010 901114 FDR ADOCK 0500 3

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U.'S. Nuclear Regulatory Commission November 14,1990 i

Please direct any questions you may have regarding this matter to this office.

Very ruly yours, Y

Nf l

. Morgan i

l-Nuclear Li sing Administratur i

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l cc: A.B. Davis Regional Administrator, Rlll R. Pulisfer - Pro ect Manager, NRR Senior Resident' Inspector - LSCS 1

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ML20058J007

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Reference:

Dear Sir:

= = = = = = = = = = = = = = = = = = = = = = = = ===

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