ML20086C935

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Responds to 830310 IE Bulletin 83-03 Check Valve Failures in Raw Water Cooling Sys of Diesel Generator. Test Results Indicate Swing Check Valves CC-17,CC-18 & CC-19 Acceptable
ML20086C935
Person / Time
Site: Davis Besse Cleveland Electric icon.png
Issue date: 11/26/1983
From: Crouse R
TOLEDO EDISON CO.
To: Deyoung R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
References
REF-SSINS-6820 1-394, IEB-83-03, IEB-83-3, NUDOCS 8311290287
Download: ML20086C935 (2)


Text

(- 1 TOLEDO

%mm EDISON Docket No. 50-346 RicHAAD P. CnouSE License No. NPF-3 7;O""

Serial No. 1-394 wi9i ass s22i November 26, 1983 Richard C. DeYoung, Director Office of Inspection & Enforcement United States Nuclear Regulatory Commission Washington, D.C. 20555

Dear Mr. DeYoung:

This is in response to IE Bulletin 83-03: Check Valve Failures in Raw Water Cooling Systems of Diesel Generator, dated March 10, 1983 (Log 1-755). Toledo Edison's letter dated June 2, 1983 (Serial 1-361) responded to Items 1 through 4.

Toledo Edison provides the following information regarding:

Item 5:

Licensees are requested to submit a report to the NRC within 90 days of completion of the results of the initial valve integrity verification procedure performed in accordance with (3) above. For those valves which are found to have undergone either partial or complete disassembly of valve internals, a description of the failure mode should be included.

Response

Toledo Edison conducted forward and reverse flow testing of the three swing check valves CC-17, CC-18 and CC-19 during the last refueling outage. Results of this testing indicates the valves under purview of this bulletin have acceptable integrity.

This completes the requested actions by Toledo Edison pertaining to IE Bulletin 83-03.

Very truly yours, RPC:JDE:SGW bj a/8 B 1 NRC Resident Inspector I

THE TOLEDO EDISON COMPANY EDISON PLAZA 300 MADISON AVENUE TOLEDO, OHIO 40552 8311290287 831126 PDR ADOCK 05000346 e PDR

. -o ATOMIC ENERGY ACT OF 1954 SECTION 182a SUBMITTAL IN RESPONSE FOR THE DAVIS-BESSE NUCLEAR POWER STATION UNIT NO. 1 FACILITY OPERATING LICENSE NPF-3 This letter is submitted in conformance with Atomic Energy Act of 1954 Section 182a in response to IE Bulletin 83-03 dated March 10, 1983. This deals with Check Valve Failure in Raw Water Cooling Systems of Diesel Generators.

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By ffk = =

Vice President, Nuclear

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Sworn to and subscribed before me thisah ay of November, 1983.

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L NotaryPublic($t44(/'Mu/24 1/ML 1.AURIE A. BRUDZINSKI' bry Public. State er chio th Cunmitsen Egres May IS,iges

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