ML20081M759

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Interim Deficiency Rept,Item M-24 Re Seismic Qualification of 13 Essential Damper Actuator Mounting Brackets.Initially Reported on 801014.American Warming & Ventilation Analysis Delayed Until 831111.Next Rept Following Corrective Mods
ML20081M759
Person / Time
Site: Zimmer
Issue date: 11/10/1983
From: Williams J
CINCINNATI GAS & ELECTRIC CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
10CFR-050.55E, 10CFR-50.55E, LOZ-83-0205, LOZ-83-205, M-24, NUDOCS 8311170362
Download: ML20081M759 (2)


Text

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l N .o TIIE CINCINNATI GAS & ELECTRIC COMI%NY dE CtNCINN ATI. OHIO 452OI November 10, 1983 LOZ-83-0205 J. wlLUAM S, JR sENION WCE PRESSOENt NuctsAn OPEnatioNS Docket No. 50-358 U.S. Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 Attention: Mr. J.G. Keppler Regional Administrator Gentlemen:

RE: WM. H. ZIMMER NUCLEAR POWER STATION - UNIT 1 10CFR50.55fe), ITEM M-24, SEISMIC QUALIFICATION OF THIRTEEN ESSENTIAL DAMPER ACTUATOR MOUNTING BRACKETS W.O. 57300,' JOB E-5590,' FILE'NO.~956C, M-24 TM s letter constitutea an interim report concerning the subject reportable deficiency reported to the Commission on October 14, 1980 under 10CFR50.55(e). Our last report, LOZ 0101, was submitted August 9, 1983.

The seismic reanalysis of the two damper assemblies (lVG0lYA

& YB) which American Warming and Ventilation (AWV) was to have

' completed by September 15, 1983, has been delayed and is now expected to be completed by November 11, 1983.

Design modifications to the nine damper assemblies.affected by Mark II Containment Dynamic Loadings will be accomplished by Engineering Change Request (ECR) No. 1233 which is currently being reviewed by CG&E. Design Inodifications to the remaining 4 assemblies will be completed when the AWV report covering the reanalysis of the two assemblies is approved by Sargent & Lundy.

All field modification *s will be completed under the program described in our Course of Action submitted to the NRC October 5, 1983. Upon completion of the corrective modifications, we will submit a final report on this deficiency.

8311170362 83111o DR ADOCK 05000358 PDR f

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Mr. J.G. Keppler Regional Administrator November 10, 1983 LOZ-83-0205 Page 2 We trust the above will be found acceptable as an interim report under 10CFR50.55(e).

Very truly yours, THE CINCINNATI GAS & ELECTRIC COMPANY By u , R #

ENIOR VICE PRE IDENT DJS/sfr cc NRC Of fice of Inspection C Enforcement Washington, D.C. 20555 NRC Resident Site Supervisor ATTN: W.M. Hill NRC Zimmer Project Inspector, Region III ATTN: E. R. Schweibinz l

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