ML20112E859

Forwards Status of Ongoing Activities Re IE Bulletin 80-11, Status of Masonry Wall Analysis & Mod Plans. Rev to Topical Rept 019 Will Be Provided by 851031 After Reanalysis & Mod Redesign of Four Walls Identified in

ML20112E859
Person / Time
Site:	Oyster Creek
Issue date:	03/21/1985
From:	Fiedler P GENERAL PUBLIC UTILITIES CORP.
To:	Zwolinski J Office of Nuclear Reactor Regulation
References
IEB-80-11, NUDOCS 8503270207
Download: ML20112E859 (3)

Text

, .s GPU Nuclear Corporation NggIgf Post Office Box 388 Route 9 South

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l Forked River,New Jersey 08731-0388 609 971-4000 Writer's Direct Dial Number:

March 21, 1985 Mr. John A. Zwolinski, Chief Operating Reactors Branch No. 5 Division of Licensing U.S. Nuclear Regulatory Commission Washington, DC 20555

Subject:

Oyster Creek Nuclear Generating Station Docket No. 50-219 IE Bulletin No. 80-11 Status of Masonry Block Wall Analysis and Modification Plans The purpose of this correspondence is to provide you with the status of ongoing activities associated with IE Bulletin 80-11. This infonnation is summarized in the attachment to this letter. Our letter to Mr. Dennis M.

-Crutchfield dated July 26, 1984, which transmitted Topical Report No. 019, indicated that analysis results of four (4) walls (Wall Nos. 31, 32, 33 and

45) in the reactor building southeast stairwell would be forwarded to you by March 1985. Although that analysis is complete, resulting modifications are not yet finalized. In addition, changes in proposed workscope for various walls have been identified or are being considered. One wall (Wall No. 53) has been addded to the workscope and one wall (Wall No. 21) has been put back into the workscope. This wall (Wall No. 21) was previously scheduled for removal as part of Appendix R modifications, however, it will now remain in place. As walls in addition to those four identified in our July 26, 1984 letter require reanalysis and modification redesign we intend to provide you with a revision to Topical Report No. 019 by October 31, 1985.

Continued operation of Oyster Creek remains justified by wall failure consequence analysis submitted by GPU Nuclear letters dated March 14 and May 11, 1984.

8503270207 850321 PDR ADOCK 05000219 G PDR GPU Nuclear Corporation is a subsidiary of the General Public Utihties Corporation $6

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Mr. John A. Zwolinski, Chief If you should have any questions, please contact Mr. Paul Czaya et (609) 971-4893.

Very truly yours, k) '

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kr Te$fer Vice President and Director Oyster Creek PBF/ dam /rj

1. 0890A cc:

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 08731 *

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ATTACHMENT OYSTER CREEK NUCLEAR GENERATING STATION IE Bulletin No. 80-11 Status of Masonry Block Walls Wall No. Status

' 8,17,18,19,20 Original proposed modification is not constructable. These walls are being reanalyzed with new modifications.

15,24 Modification is being reviewed for possible preemptive block

. removal.

28,44 Review tentatively identifies no failure effect - possibly remove from scope.

29,31,32,33,45 Reanalysis is complete and modification is being designed.

53 New wall added due te secondary effects of wall failure on Battery Room equipment.

i-21 Previously scheduled for removal l per GPUN letter dated May 11, 1984. Wall will now

remain in place with

( modification due to change in Appendix R scope.

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