ML071770113

6/14/07 E-Mail from Bvaidya, Nrr/Dorl/Lpliv, to Rwbyrd, Entergy, Enclosing 6/13/07 E-mail from NRC Review of Draft Response to Request for Additional Info Re LAR to Update LOCA Methodology

ML071770113
Person / Time
Site:	River Bend
Issue date:	06/14/2007
From:	Bhalchandra Vaidya NRC/NRR/ADRO/DORL/LPLIV
To:	Byrd R Entergy Operations
Vaidya B, NRR/DORL/LP4, 415-3308
References
TAC MD3293
Download: ML071770113 (2)

Text

From: Bhalchandra Vaidya To: RBYRD@entergy.com Date: 6/14/2007 11:39:44 AM

Subject:

Fwd: RAI response Please see the attached e-mail from the reviewer. Also, see the additional explanation for this staff request below:

1. Your response to item (3) mentions that the precise PCT impact for each of the changes has not been quantified because a through sensitivity analysis is not practical. the licensee should know all the impact to this higher PCT results due to each influencial parameter with some other's consulting services.

2. Your response to item (4) mentions that since the initial MCPR value of 1.16 remains non-limiting and is conservatively bounding for the current and expected future cycles, the same initial value is used in the EXEM BWR-2000 LOCA analysis. How can a non-limiting MCPR value becomes conservatively bounding for the current and expected future cycles?

Please call me to arrange a teleconference.

Thanks, Bhalchandra Vaidya NRR/DORL/LPL-IV/PM 301-415-3308 M/S: O-7D1 bkv@nrc.gov Mail Envelope Properties (46716140.ED4 : 10 : 35718)

Subject:

Fwd: RAI response Creation Date 6/14/2007 11:39:44 AM From: Bhalchandra Vaidya Created By: BKV@nrc.gov Recipients entergy.com RBYRD (RBYRD@entergy.com)

Post Office Route entergy.com Files Size Date & Time MESSAGE 1654 6/14/2007 11:39:44 AM Mail Options Expiration Date: None Priority: Standard ReplyRequested: No Return Notification: None Concealed

Subject:

No Security: Standard