ML20154B326

Informs That NRC Intends to Consider Violation B Re Control Room Ventilation Sys as Modified When Reviewing Response to Notice of Violation & Proposed Imposition of Civil Penalty

ML20154B326
Person / Time
Site:	Braidwood
Issue date:	09/07/1988
From:	Lieberman J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:	Oconner J COMMONWEALTH EDISON CO.
References
NUDOCS 8809130325
Download: ML20154B326 (1)

Text

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, SEP 071988 Docket No. 50-456 License No. NPF-72 EA 88-91 Comonwealth Edison Company ATTN: Mr. James T. O' Conner 4 President Post Office Box 767 Chicago, Illinois, 60690-0767 Gentlemen:

By a letter dated June 20, 1988 Comnonwealth Edison responded to a Notice of l Violation (tiOV) and Proposed Im>osition of Civil Penalty which was issued by  ;

the NRC staff May 6, 1988 for tiree violations associated with design control '

deficiencies for the Control Roon Ventilation System at Braidwood tlnit 1. In  !

that letter Cormonwealth Edison, in part, took exception to Violation 8 stating ,

that the preoperational testing performed on March 4 and 11, 1967 could not have 4

detected the logic switch wit ing problem because the irplementing design change was not completed until a nunhr of weeks af ter that testing. The tiFC staff i agrees that the testing on the dates stated would not have detected the problem, however, by Comonwealth Edison's admission, the testing that was performed I

subsequent to the completion of the design change was not adequate to detect  !

the problem. In addition, you agreed that the Control Room Ventilation System  !

was degraded as stated in the cover letter to the itay Notice of Violation. l Acordingly, the staff is inodifying Violation B as follows: l Contrary to the above, the licensee's test program did not demonstrate

'l that the Control Room Yentilation Systems (CRYS) weuld perforn ,

satisfactorily in that CRVS preoperational testing, which was corpleted l

) before the CRVS were declared operable at the time of Unit 1 initial  ;

criticality on May 29, 1987, did not identify that heater interlock logic i switches were wired incorrectly, that specified switch setpoints had not  !

j been adjusted, and that CRYS were in degraded condition. l The fiRC staff intends to consider Violation B as medified above when reviewing j Commonwealth Edison's response to the NOV and Proposed Irposition cf Civil 3 i

renalty. Sheuld you have any further coments on this specific issue, please  !

submit ' hen in writing to the Directer, Office of Enforcer:ent U.S. Nuclear  !

Regulat Jry Comission, with a copy to the Regional Moinistrator within twn weeks t of the date of this letter.  !

OriglwelShned ty [

James Ueberman j do Jeees Liebernan, Director  !

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Office of Enforcenent  !

cc: A. B. Davis, RI!!

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