ML062970043

10/6/2006 E-Mail to M. Crawford and R. Byrd, Entergy Operations, Inc., from B. Vaidya, DORL/LPL4/PM - Draft Request for Additional Information

ML062970043
Person / Time
Site:	Grand Gulf
Issue date:	10/06/2006
From:	Bhalchandra Vaidya NRC/NRR/ADRO/DORL/LPLIV
To:	Byrd R, Melissa Crawford Entergy Operations
Vaidya B, NRR/DORL/LP4, 415-3308
References
GL-88-016, TAC MD1496
Download: ML062970043 (2)

Text

From: Bhalchandra Vaidya To: MCRAWF1@entergy.com; RBYRD@entergy.com Date: 10/6/2006 4:27:57 PM

Subject:

Grand Gulf, MD1496, Draft RAIs

Ron, The following are the draft RAIs on the application for a license amendment referenced.

I WOULD LIKE TO ARRANGE A TELECONF. TO DISCUSS THESE RAIs IN THE WEEK OF October 16, 2006. PLEASE LET ME KNOW THE CONVENIENT DATES AND TIMES FOR YOU.

Thanks,

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REQUEST FOR ADDITIONAL INFORMATION RELATING TO AMENDMENT REQUEST TO LICENSE NO. NPF-29, TAC NO. MD1496 ENTERGY OPERATIONS, INC.

GRAND GULF NUCLEAR STATION UNIT 1 DOCKET NO. 50-416

1. As specified in the Generic Letter 88-16, the analytical methods used to determine the core operating limits shall be those previously reviewed and approved by NRC in identifying the Topical Report(s) by number, title, and date, or identifying the staffs safety evaluation report for a plant-specific methodology by NRC letter and date. For each reference listed in TS 5.6.5.b, please clarify which parameter in TS 5.6.5.a is supported.

2. It appears that the core loading for Cycle 16 will be FRA-ANP ATRIUM 10 fuel, however, NEDE-24011-P-A, which is a GE license topical report (LTR), is listed under TS 5.6.5.b.24.

Please provide the reason why TS 5.6.5.b.24 - a GE LTR is still listed in the COLR.

3. With respect to the use of the proposed EXEM BWR-2000 model, please provide: (1) the detailed explanation why the increase in PCT is beyond 50 Busing the proposed EXEM BWR-2000 model. Since the 98 B PCT increase is a significant increase above the 50 B a more detailed explanation is required; (2) the reason that an increase in PCT of 98 B due to changing the old EXEM BWR model to EXEM BWR-2000 model in the Grand Gulf LOCA analysis does not impact the current MCPR Safety Limits; (3) justification as to why a lower MCPR input at the start of the event is assumed for EXEM BWR-2000 evaluation model; and (4) the actions to be taken if the assumption of a lower MCPR input at the start of the event is not met.

Bhalchandra Vaidya NRR/DORL/LPL-IV/PM 301-415-3308 M/S: O-7D1 CC: Gregory Cranston; Hearn, Peter; Tai Huang; Terao, David; Tjader, Theodore Mail Envelope Properties (4526BC4D.DD9 : 10 : 35718)

Subject:

Grand Gulf, MD1496, Draft RAIs Creation Date 10/6/2006 4:27:57 PM From: Bhalchandra Vaidya Created By: BKV@nrc.gov Recipients entergy.com MCRAWF1 (MCRAWF1@entergy.com)

RBYRD (RBYRD@entergy.com) nrc.gov OWGWPO03.HQGWDO01 GVC CC (Gregory Cranston) nrc.gov

OWGWPO04.HQGWDO01 PCH CC (Peter Hearn)

TLH1 CC (Tai Huang) nrc.gov TWGWPO02.HQGWDO01 DXT CC (David Terao)

TRT CC (Theodore Tjader)

Post Office Route entergy.com OWGWPO03.HQGWDO01 nrc.gov OWGWPO04.HQGWDO01 nrc.gov TWGWPO02.HQGWDO01 nrc.gov Files Size Date & Time MESSAGE 3173 10/6/2006 4:27:57 PM Options Expiration Date: None Priority: Standard ReplyRequested: No Return Notification: None Concealed

Subject:

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