ML20078M981

Responds to NRC Re Violations Noted in IE Insp Repts 50-373/83-30 & 50-374/83-29.Corrective Actions: Procedure LOP-DG-01 Being Clarified & Step Will Be Added to Verify That ESF Status Panel Checked After Lineup Completed

ML20078M981
Person / Time
Site:	LaSalle
Issue date:	10/18/1983
From:	Farrar D COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20078M962	List: ML20078M981
References
7470N, NUDOCS 8310250361
Download: ML20078M981 (2)

Text

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' 3 [ \ Commonwealth Edison t ) one First National Plaza, Chicago, Ilknois (O / Addrsss Reply to: Post Office Box 767

,, / Chicago Illinois 60690 October 18, 1983 Mr. James G. Keppler, Regional Administrator

- Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137

Subject:

LaSalle County Station Units 1 and 2 Response to Inspection Report Nos.

50-373/83-30 and 50-374/83-29 NRC Docket Nos. 50-373 and 50-374

Dear M;. 'copler:

This Aetter is in response to the inspection conducted by Messrs. R. D. Lanksbury and S. G. DuPont on July 25 through September 9, 1983, of activities at LaSalle County Station Units 1 and 2. Reference (a) indicated that.certain activities appeared to be in noncompliance with NRC requirements. The Commonwealth Edison Company response to the Notice of Violation is provided in the enclosure.

To the' best of my knowledge and belief the statements contained herein and in the attachment are true and correct. In some respects these statements are not based upon my personal knowledge but upon information furnished by other Commonwealth Edison employees. Such information has been reviewed in accordance with Company practice and I believe it to be reliable.

If you have any further questions on this matter, please direct them to this office.

Very truly yours, D

Director of Nuclear Licensing CWS/1m Attachment cc: NRC Resident Inspector - LSCS 747^" 8310250361 831020 PDR ADOCK 05000373 G PDR OCT 19 #

-ITEM OF NONCOMPLIANCE 10~CFR 50, Appendix B,-Criterion XI, states in part, "A test program;shall.be established to assure that all testing required

-to demonstrate that structures, systems, and components will perform satisfactorily in service is' identified and performed in accordance with: written test procedures...". Emergency Power Redundancy Preoperational Test Procedure, PT-AP-203, Section 10.5.8.3.e, states in-part,."That Diesel Generator 2A is lined up for. standby operation in accordance with LaSalle Operating Procedure LOP-DG-01." LaSalle ' Operating Procedure, LOP-DG-01, Section F.1.a.1, states in part, "That tha' Bus 2424 Diesel

-Generator position for2A Feed ACB standby 2423 control of Diesel Generator switch 2A." shall be in the normal

' Contrary to the above, the 2A Diesel Generator was found to not be lined up for.standy operation during the performance of preoperational test PT-AP-203 in that the control switch Bus 2424 position. Diesel Generator 2A ACB 2423 was not.in the required normal Corrective Action Taken and Results Achieved As noted in.the-inspection report, the system was realigned to the

' performed.

required configuration and the test was successfully This incident was discussed with the Control Room operators on shift at-the time to attempt to determine how the switch came to-be placed in the " Pull-to-Lock" position. The operator who performed the line-up (LOP-DG-01) believes that he did correctly position:the switch. About six hours elapsed between the time the line-up was done and the time the test was started. None of the personnel involved remember moving the switch from the normal

. position.

Therefore, the cause of the violation of the required system' lineup could not be identified.

3 Corrective Action Taken to Avoid Further Noncompliance j 1. LOP-DG-01 is being revised to add more clarity to the step

+

in question, and to put this step in a more logical position in the procedure. A step will also be added to the procedure to verify that the ESF Status panel is checked after the rest of the line-up is completed. (AIR 01-83-349).

2. The station is evaluating the feasibility of e method to identify control room switches in off-normal positions by the use of bright plastic rings. (AIR 01-83-350). f

!' Date of Full Compliance

' ~ Full compliance has:been achieved. Items 1 and 2 above will be accomplished by January 1, 1984.

'7470N i

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