ML20077J455

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Forwards MPR-772 Oyster Creek Nuclear Generating Station Mark I Containment Long-Term Program Plant-Unique Analysis Supplemental Rept
ML20077J455
Person / Time
Site: Oyster Creek
Issue date: 08/09/1983
From: Fiedler P
GENERAL PUBLIC UTILITIES CORP.
To: Eisenhut D
Office of Nuclear Reactor Regulation
Shared Package
ML20077J456 List:
References
NUDOCS 8308160423
Download: ML20077J455 (2)


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GPU Nuclear g gf P.O. Box 388 Forked River, New Jersey 08731 l

609-693-6000 Writer's Direct Dial Number:

August 9, 1983 Mr. D. G. Eisenhut, Director Division of Licensing Of fice of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D.C. 20555

Dear Mr. Eisenhut:

Subj ect: Oyster Creek Nuclear Generating Station Docket No. 50-219 Mark I Containment Report

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Enclosed for your review is MPR Report 772, "0yster Creek Nucleae Generating Station Mark I Containment Long-Term Program Plant-Unique Analysis Supplemental Report." This report summarizes our recent analyse's of. four areas that were not covered in the original Mark I Program report submittdd on September 24, 1982. The four areas are described below:

1. Ring Girders and Torus Shell Near Piping Supports The report contains the results of our evaluations of the six ring girders and adjacent local torus shell that provide support for the SRV and Demineralizer relief valve piping inside the torus. Our evaluation includes the ef fects of the recent modifications designed for these supports.
2. Ring Girders Piping Support Modifications The report describes the design analyses performed for the recent modifications to the SRV and Demineralizer piping supports on the ring girders.
3. SRV Piping Penetration on Vent Pipe The report includes a section for the analysis of the SRV piping nozzle penetration on the vent pipe.
4. Torus Monorail The recent analysis of the monorail as a permanent torus structure is summarized in the report.

/102 S 8308160423 830809 ^

DR ADDCK 05000219 //

.PDR, part of the General Public Utilities System

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Mr. D. G. Eisenhut , Director Page_2 If you have any further questions, please contact Mr. Michael Laggart of my staff at (609) 971-4643.

Very truly yours, r ,

2 Peter B. Fiedler Vice President and Director Oyster Creek t

PBF:jal ec: Dr. Thomas E. Murley, Administrator Region I U. S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406 NRC Resident Inspector Oyster Creek Nuclear Generating Station

. Forked River, NJ 08753 l

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