ML19224D616
| ML19224D616 | |
| Person / Time | |
|---|---|
| Site: | Zimmer |
| Issue date: | 05/25/1979 |
| From: | Borgmann E CINCINNATI GAS & ELECTRIC CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML19224D617 | List: |
| References | |
| NUDOCS 7907130153 | |
| Download: ML19224D616 (3) | |
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THE C'NCINNATI GAS & ELECTRIC COMPANY rnCH3FFA ClNCIN N ATI. OHIO 4 52Cl May 25, 1979 J..^J.S.135^."," e U.S. Nuclear Regulatory Commission Office of Inspection and Enforcement Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137
/TTN:
Mr. James G. Keppler Regional Director RE:
WM. H. ZIMMER NUCLEAR POWER STATION - UNIT 1 IE BULLETINS 78-12, 12A&l2B, ATYPICAL WELD MATERIAL IN REACTOR PRESSURE VESSEL WELDS, DOCKET 50-358, W.0. 57300, JOB E-5590, FILE # 2000-2 Gentlemen:
In response to your request please find documentation and information included in the following attachments:
(1 )
G.E. Verification letter dated May 4,1979.
(2)
C.B. & I. documentation letter dated April 24, 1979.
(3)
C.D. & I. certification letter dated May 22, 1979.
These attachments along w th the CB&I generic report which was transmitted i
to you on April 24, 1979 completes our respcnse to the subject NPC IE Bulletins.
Ve truly yours,
...t CINCINNATI GAS & ELECTRIC COMPANY ff c,, ~
E.A. BORGMANN, SENIOR VICE PRESIDENT RWR/kjd ENCLOSURE cc:
NRC Office of Inspection and Enforcement Divicion of Reactor Ir.spection Programs Washington, D.C.
20555 357 353 3 1 1979 7 9 0 718 0,e y 3 p
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GENER AL h ELECTRIC
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ENGINEERING GENERAL ELECTRIC CCMPANY,175 CURTNER AVE., SAN JOSE, CALIFORNIA 95125 DIVIS:ON May 4,1979
' Cincinnati Gas & Electric Company 139 East 4th Street Cincinnati, OH 45201
Subject:
Response to NRC IE Bulletin No. 78-12,78-12A and 78-12B
Reference:
Reactor Pressure Vessel: Zimmer I Gentlemen:
In compliance with subject bulletin, General Electric NEBG requested Chicago Bridge and Iron Company (CB&I) to conduct a records investi-gation of low alloy, high tensile weld deposits used in all reactor pressure vessels built in their, or their supplier's, facilities.
The purpose of this investigation was to identify any other atypical weld deposit similar to the one described in Bulletin 78-12.
In response to our request, CB&I has preparea a report and submitted it tc the NRC.
The report contains the attached certification dated 4/24/79.
We have reviewed CB&I's report to the NRC and have not found any dis-crepancies.
Consequently, we concur with their certification and con-clude that it is very unlikely that other, similar conditions (i.e.
atypical weld deposits) exist in any reactor pressure vessel welds.
CB&I states in the body of their report that they do not have any archive material, which could be used for verification purposes.
Consequently, we are requesting you to review your inventory and advise the NRC accordingly (Bulletin 78-12, Item 4).
We reconmend that you use this letter and the attached certification to satisfy the NRC request for verification of the generic search as outlined in IE Bulletin 78-12, Item 2.
Ver tfulyyo
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erd M er Quality Control Engineering Vescels, Internals & Heat Exchangers 357357 M/C 731 - Extension 56751 l
87TA6H/Y]ENT '2 Chicago Bridge & Iron Company Ei'
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The documentation cnd information required by NRC Bulletins 78-12 and 78-12A, and CE PO # 205-A2764 for CBI Contract #
69-5571 Vessel Zimmer I cre contained in the attached report.
Welding consumcbles were re-reviewed ogcinst the originct requirements in accordance with the cbove listed documents. No devictions were found.
Bcsed upon our records, ! certify, to the best of my knowledge, this report is correct.
C0 ld-Y-ZY-79 I
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Date Rotoh E. Ke.:3v teneger, COA ervices S S.
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