ML20008F918

Final Deficiency Rept Re Missing Heat Number Identification on 62 Essential Pressure Boundary Thermowelds in Code Piping Sys,Initially Reported 801003.Insp Verified Each Unit Was Stamped W/Proper Heat Number

ML20008F918
Person / Time
Site:	Zimmer
Issue date:	05/06/1981
From:	Borgmann E CINCINNATI GAS & ELECTRIC CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
10CFR-050.55E, 10CFR-50.55E, QA-1416, NUDOCS 8105120329
Download: ML20008F918 (2)

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THE CINCINNATI GAS & ELECTRIC COMPANY en =

CINCINNATI.CHIO 45201

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9C U. S. Nuclear Regulatory Comission b 1 ISOI" Region III d "*W, tam *uca h 799 Roosevelt Road  % 1 Glen Ellyn, Illinois 60137 w

• Attention: Mr. James G. Keppler, Director RE: WM. H. ZIMMER NUCLEAR POWER STATION - UNIT I 10CFR50.55(e) REPORT NO. M-23, ESSENTIAL '

THERM 0 WELLS - DOCKET NO. 50-358, CONSTRUCTION PERMIT N0. CPPR-88, W. O. 57300-957, JOB E-5590 Gentlemen:

This lette.r constitutes our final report on the subject 50.55(e) event which was initially reported by interim letter on October 3,1980.

Description of the Deficiency -

Sixty-two (62) essential pressure boundary thermowells were identified in code piping systems where traceability to certified material test reports was not available on site. .

Analysis of Safety Implications The ASME Section III Code requirt- that components included in the primary pressure boundary be traceable by heat number. The lack of heat number identification on the thermowells is considered reportable under 10CFR50.55(c).

Corrective Action Taken All thermowells which were found to lack traceability were identified on Nonconformance Reports. Action was tiiitiated to replace all nonconforming thermowells.

Purchase documents were reviewed by CG&E Quality Assurance to assure that appropriate quality requirements, including material traceabi'ity, were included. The supplier's Quality Assurance program was approved by CG&E Quality Assurance, and vendor evaluations were performed at tne facilities of the supplier and the material manufacturer.

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- Mr! James G. Keppler, Director U. S. Nuclear Regulatory Comission Region III May 6, 1981 - QA-1416 Page #2 Upon receipt of the thermowells, CG&E Quality Assurance verified that a Certified Material Test Report was supplied. CG&E Quality Assurance conducted a 100% inspection to verify that the heat number was stamped on each thermowell. Each unit was found to be stamped with a heat number that matched the heet number on the Certified Material Test Report, thus assuring that traceability will exist for the replacement thermowells.

We trust that the above will constitute an acceptable final report on this deficiency in accordance with the requirements of 10CFR50.55(e).

Very truly yours, THE CINCINNATI GAS & ELECTRIC COMPANY O D O $ $f &

Nl Yf E. A. BORGMANN SENIOR VICE PRESIDENT JFW:ec .

cc: NRC Resident Inspector Attn: F. T. Daniels NRC Office of Inspection & Enforcement Washington, D. C. 20555 g