ML022190509

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Conference Call Re. 04/26/02 Proposed Amend
ML022190509
Person / Time
Site: Oyster Creek
Issue date: 08/05/2002
From: Tam P
NRC/NRR/DLPM/LPD1
To: Distel D, Hufnagel J
Exelon Corp
Tam P, NRR/DLPM, 415-1451
References
TAC MB4960
Download: ML022190509 (2)


Text

From:

Peter Tam To:

INTernet:David.distel@exeloncorp.com; INTernet:John.Hufnagel@exeloncorp.com Date:

8/5/02 2:08PM

Subject:

Conference call re. 4/26/02 propsoed amend. (TAC MB4960)

John, David:

This is regarding the 4/26/02 amendment request on the BWROGs stability Option II solution methodology. Our reviewer Tai Huang would like to discuss these issues with you ina conference call:

1. Provide results and conclusions of the analysis for operation of Oyster Creek in the extended operating region (GE Report MDE-63-0386, "Extended Load Line Limit Analysis for Oyster Creek Nuclear Generating Station," March 1986). Also, provide the ELLLA region in Attachments 1 and 2, and identify the region which is currently restricted from full use of the ELLLA region of the power/flow map because of the flow biased rod block setpoints.
2. Provide justification for Oyster Creeks transition to the Generic BWROG Long Term Stability Solution Option II and identify the differences between the current method and the new one recommended by GE for Cycle 19 operation. Also, identify any differences between the BWROG LT Stability Solution Option II and NEDC-33065P and hardware modifications due to this proposed change.
3. Describe any impact on the BWROG LT Stability Solution Option II due to 10 CFR Part 21 issue on the Generic DIVOM curve for regional mode oscillations since Option II method using quadrant-based APRM scram to detect and suppress both in-phase and out-of-phase oscillations.
4. Provide quantitative results from review of the UFSAR transient events such as rod withdrawal event, loss of feedwater heating, MSIV closure, and startup of an inactive loop at an incorrect temperature and show the old UFSAR results are still valid.

This email aims solely to prepare you for a conference call. Please set this up with me ASAP to support your requested target date of 9/30/02. This email does not formally request for additional information, nor does it convey a formal NRC staff position.

Peter S. Tam, Senior Project Manager Project Directorate I-1 Division of Licensing Project Management Office of Nuclear Reactor Regulation e-mail: pst@nrc.gov Tel.: 301-415-1451 CC:

Tai Huang Mail Envelope Properties (3D4EBF1E.27D : 10 : 20510)

Subject:

Conference call re. 4/26/02 propsoed amend. (TAC MB4960)

Creation Date:

8/5/02 2:08PM From:

Peter Tam Created By:

PST@nrc.gov Recipients Action Date & Time David Transferred 08/05/02 02:08PM distel (INTernet:David.distel@exeloncorp.

John Transferred 08/05/02 02:08PM Hufnagel (INTernet:John.Hufnagel@exelonco nrc.gov owf2_po.OWFN_DO Delivered 08/05/02 02:08PM TLH1 CC (Tai Huang)

Opened 08/05/02 02:34PM Post Office Delivered Route David INTernet:exeloncorp.

com John INTernet:exeloncorp.

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