ML20064K415

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Forwards Rev 1 to GENE-523-141-1093, Evaluation & Screening Criteria for Peach Bottom Unit 3 Shroud Indications
ML20064K415
Person / Time
Site: Peach Bottom Constellation icon.png
Issue date: 03/14/1994
From: Hunger G
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20064K422 List:
References
NUDOCS 9403230103
Download: ML20064K415 (1)


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_e PECO ENERGY rafrs=;L 965 Chesterbrook Boulevard Wayne, PA 19087-5691 March 14,1994 Docket Nos. 50-277 50-278 Uconse Nos. DPR-44 DPR-56 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

Subject:

Peach Bottom Atomic Power Station, Unit 3 Evaluation of Core Shroud Indications

Reference:

(1) Letter from G. A. Hunger, Jr. (PECO Energy) to NRC dated October 29,1993 (2) NRC Meeting Summary of November 3,1993 Meeting issued December 2,1993

Dear Sir:

In the above referenced letter, PECO Energy Company submitted preliminary information regarding the evaluation of the Indications identified on the Peach Bottom Atomic Power Station (PBAPS), Unit 3 core shroud. This issue was discussed with the NRC at a meeting on November 3,1993. At the meeting, questions were raised concoming the applicability of the '

quadrant screening criterion. PECO Energy agreed to revise the evaluation to clarify the significance of the quadrant screening criterion. This clarification is provided in the enclosed GENE-523-141-1093, Rev.1 report entitled, " Evaluation and Screening Criteria for the Peach Bottom Unit-3 Shroud Indications." Additionally, the basis for calculation of shroud crack growth rates at PBAPS has been included in the revised report.

If you have any questions, please do not hesitate to contact us.

Very truly yours,

, . 4. -

G. A. Hunger, Jr., Director Licensing Section MCK/eas Enclosure i cc: T. T. Martin, Administrator, Region I, USNRC W. L Schmidt, USNRC Senior Resident inspector, PBAPS I

9403230103 940314 PDR ADDCK 05000278 x

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