ML20148A539

Submits Verification of Ufsar,Evaluating Scope & Schedule of UFSAR Verification Project

ML20148A539
Person / Time
Site:	Peach Bottom, Limerick
Issue date:	05/02/1997
From:	Hunger G PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9705090060
Download: ML20148A539 (5)

Text

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Cttion fupport Deptrtment PECO NUCLEAR ecco e,-

965 chesterbrook Bouiovard A Unit of PECO Energy Wayne. PA 19007-5691 May 2 .,1997 Docket Nos. 50-277 50-278 50-352 50-353 License Nos. DPR-44 DPR-56 NPF-39 NPF-85 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

Subject:

Peach Bottom Atomic Power Station, Units 2 and 3 Limerick Generating Station, Units 1 and 2 Review of Updated Final Safety Analysis Reports (UFSARs) l

Reference:

Letter, D. B. Fetters (PECO Energy) to USNRC dated February 4,1997 " Request For Information Pursuant to 10 CFR50.54(f) Regarding Adequacy and Availability of l Design Bases Information" I Gentlemen:

The reference letter provided PECO Energy's response to NRC's request for information involving adequacy and availability of Design Bases information. In Attachment 3 of the February 4,1997 letter PECO Energy made the following

! commitment:

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( "PECO Nuclear is committed to complete the verification of the UFSAR and is I

evaluating the scope and schedule of the UFSAR verification project. PECO Nuclear will provide additional information on the scope and schedule of the kb completion of the UFSAR verification project within 90 days of the date of this letter."

000039 The purpose of this letter is to respond to the aforementioned commitment.

9705090060 970502 DR ADOCK 050002 7 f l l l glllll g l_ p

- i May 2,1997 Page 2 l

PECO Energy intends to complete the voluntary verification of the Peach Bottom and Limerick UFSARs in a phased approach. In May 1996 PECO Energy l completed a knowledge-based review of 100% of the Peach Bottom UFSAR. i During June-September 1996 PECO Energy performed a more detailed review ,

of selected sections of the Peach Bottom and Limerick UFSARs. Section I selection for this phase was based on Probabilistic Safety Assessment (PSA) l significance and engineering judgment. By October 18,1998 PECO Energy will  :

perform an additional detailed review of Peach Bottom and Limerick UFSAR I sections identified as high priority. This review will be similar to the methodology l that was used to evaluate portions of the Peach Bottom and Limerick UFSARs in 1996, as described in the reference letter, and will incorporate lessons learned from the 1996 reviews. Listings of the Peach Bottom and Limerick UFSAR high priority sections are attached.

1 Additionally, a knowledge-based review will be completed for all sections of the Limerick UFSAR that were not reviewed as part of the 1996 verification prcy,0..

This review will be performed by individuals knowledgeable in the sections that they have been assigned to review and is intended to be less rigorous than the j reviews that are scheduled to be performed for the high priority sections. The knowledge-based review that was completed for 100% of the Peach Bottom UFSAR was found to be beneficial in identifying UFSAR discrepancies.

l The knowledge-based reviews and the more detailed reviews of the high priority sections comprise the Licensee initiative as described in the NRC's " Policy and Procedure for Enforcement Actions; Departures from FSAR" Section 4-Old Design issues, published in the Federal Register on October 18,1996. In accordance with the timeliness condition specified in the Federal Register Notice, the PECO Energy initiative will be completed by October 18,1998 in order to maximize the potential for obtaining enforcement discretion involving UFSAR dist;epancies, should such discretion be needed. -

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

Very truly yours,

. N. , .

G. A. Hunger, r.

Director - Licensing

( Attachment cc: H. J. Miller, Administrator, Region I (w/ attachment) l N. S. Perry, USNRC Senior Resident inspector, LGS (w/ attachment)

W. L. Schmidt, USNRC Senior Resident Inspector, PBAPS (w/ attachment)

R. R. Janati, PA Bureau of Radiation Protection (w/ attachment)

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ATTACHMENT .

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l Peach Bottom Atomic Power Station - Units 2 and 3 Docket Nos. 50-277

, 50-278 Limerick Generating Station - Units 1 and 2 j Docket Nos. 50-352 2 50-353 j

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" List of Peach Bottom and Limerick UFSAR Sections identified as High Priority" (2 Pages) l k

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