IR 05000373/1986027

Insp Repts 50-373/86-27 & 50-374/86-28 on 860702.No Violation or Deviation Noted.Major Areas Inspected: Resolution of IE Bulletin 83-23, Check Valve Failures in Raw Water Cooling Sys of Diesel Generators

ML20207G441
Person / Time
Site:	LaSalle
Issue date:	07/17/1986
From:	Danielson D, David Jones NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:
Shared Package
ML20207G427	List: IR 05000373/1986027 ML20207G423
References
50-373-86-27, 50-374-86-28, IEB-83-03, IEB-83-3, NUDOCS 8607230073
Download: ML20207G441 (2)

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U.S. NUCLEAR REGULATORY COVNISSION

REGION III

Report No: 50-373/86027(DRS);50-374/86028(DRS)

Docket No. 50-373; 50-374 License No.: NPF-11; NPF-18 Licensee: Commonwealth Edison Company P.O. Box 767 Chicago, IL 60690 Facility Narre: LaSalle County Station, Units 1 and 2 Inspection At: LaSalle Site, Marseilles, Illinois Inspection Conducted: July 2, 1986

&W 7/'7 4 Inspector- . E. Jones ~~

Date Approved By: D. H. Danielson, Chief 'l / 7//(.

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Materials & Processes Section Fa~te ' '

In_sp,e,c,ti_on Summary Inspection on July __2_, '1986 _(, Rep ~ ort No. 50-373/86027(JDRS;50-374-86028_(DRS)]

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Areas Inspected:~~ Routiiie unannounced iiis~pection of the res'o'IFtiin~~o'f'an IE

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ifu~1Teti Results: No violations or deviations were identifie .

8607230073 860717 PDR ADOCK 05000373 G PDR

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Details 1. _Per_s_ons Contacted Commonwealth Edison Company __(_C_ Ecol

• Zoloty, ISI Coordinator U.S. Nuclear Regulatory _Commjssion_j_N_R_Cl o s R. Kopriva, Resident Inspector

• Denotes those present at the exit interview on July 2, 198 . Licensee Action on an IE Bulletin (Closed)IEBulletin(373/83-03-BB,374/83-03-BB): IE Bulletin 83-03,

" Check Valve Failures in Raw Water Cooling Systems of Diesel Generators."

Followup on this item is documented in NRC Inspection Report No. 50-373/83-49; however, additional followup was required to verify the completion of the IE Bulletin requirements. The inspector reviewed the licensee's final response dated June 7, 1983. The licensee identified three check valves in the Diesel Generator Cooling System. These valves are of a different design as those addressed in the bulletin. The licensee forward flow tests the three valves each quarter in accordance with their IST Progra As a result of the bulletin, an internal visual inspection was performed on two valves, during the fall 1984 outage. No damage was noted. Due to the design of the installed valves, the licensee does not plan further augmented inspection . Exit Interview The inspector met with site representatives (denoted in persons contacted paragraph) at the conclusion of the inspection. The inspector summarized scope and findings of the inspection noted in this report. The inspector also discussed the likely informational content of the inspection report with regard to documents or processes reviewed by the inspector during the inspection. The licensee did not identify any such documents / processes as proprietary.

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