ML20083L520

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Forwards Addl Info Re Core Shroud Mod,Including Rev 0 to GENE-771-110-0595, Evaluation of Acceptability of Fddr 1E6AR-FDDR-001 for Shroud Repair Program at Quad Cities Unit 2
ML20083L520
Person / Time
Site: Quad Cities Constellation icon.png
Issue date: 05/11/1995
From: Schrage J
COMMONWEALTH EDISON CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20083L522 List:
References
NUDOCS 9505180459
Download: ML20083L520 (3)


Text

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I May 11,1995 1

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U.S. Nuclear Regulatory Commission I Washington, D.C. 20555 l Attn: Document Control Desk

Subject:

Quad Cities Nuclear Station Unit 2, Additional Information - Core Shroud Modification NRC Docket Nos. 50-265

Reference:

J.L. Schrage to USNRC letter dated May 5,1995 During the installation of shroud repair hardware on Quad Cities Station Unit 2, pockets were cut in the shroud flange to accommodate the long upper supports. During this cutting operation, one of the pockets was cut too deep, and the cut transversed through the back of the shroud flange.

This cut produced a steam bypass flow area. In Attachment 3 of the referenced letter (GENE-771-110-0595, Revision 0, " Evaluation of the Acceptability of FDDR No.1E6AR-FDDR-001 for the Shroud Repair Program at Quad Cities Unit 2," dated May 4,1995), ContEd transmitted an evaluation of the deviation for the shroud repair hardware installation at Quad Cities Unit 2 resulting from this steam bypass flow area. This document was identified as proprietary in nature to the General Electric Nuclear Company. Comed also included, as Attachment 4 to the referenced letter, a General Electric Nuclear Company affidavits (dated May 4,1995), per the requirements of 10CFR 2.790(b), explaining the reasons and circumstances for withholding the applicable information from public disclosure.

The Attachment to this letter transmits a non-proprietary version of the information which was originally submitted in the referenced letter. Comed has deleted all proprietary inf( mation from '

the attached document.

To the best of my knowledge and belief, the analyses and evaluations contained in this document is true and correct. In some respects this document is not based on my personal knowledge, but on information furnished by other Commonwealth Edison employees, contractor employees, and/or consultants. Such information has been reviewed in accordance with company practice, and I believe it to be reliable.

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IJ.S. NRC May 11,1995 If there are any questions concerning this matter, or need for further clarification, please contact this office.

6 OFFICIAL SEAL

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l[ MARY JO YACK MOTARY PUBLIC. STATE OF ILLINOISh l

Sincerely, gl>yY comssow Exeintsmiysp7 (l 14At, O/ 748-ci S-//-[5

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hn L. age uclear Licensing Administrator Attachment GENE-771-110-0595, Revision 0, " Evaluation of the Acceptability of FDDR No.

1E6AR-FDDR-001 for the Shroud Repair Program at Quad Cities Unit 2," dated May 4,1995; NON-PROPRIETARY VERSION cc: J. Martin, Regional Administrator - Rill R. Pulsifer, Project Manager NRR C. Miller, Senior Resident Inspector - Quad Cities -

Office of Nuclear Facility Safety - IDNS i

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ATTACHMENT GENE-771-110-0595, Revision 0 Evaluation of the Acceptability of FDDR No.1E6AR-FDDR-001 for the Shroud Repair Program 'at Quad Cities Unit 2 May 4,1995 NON - PROPRIETARY VERSION

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