ML042330085

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E-mail from Pelton to Perez Water in Torus Vent Bowls TE
ML042330085
Person / Time
Site: Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date: 05/15/2003
From: David Pelton
NRC Region 1
To: Perez P
Entergy Nuclear Vermont Yankee
References
FOIA/PA-2004-0267
Download: ML042330085 (2)


Text

Pelton, David From:

Pelton, David / erg Sent:

Thursday, May 15, 2003 12:14 PM To:

Perez, Pedro

Subject:

RE: Water in Torus Vent Bowls TE

Pedro, Thank you. I really appreciate your help.

dave p.

--Original Message---

From: Perez, Pedro Sent Thursday, May 15, 2003 11:52 To: Pelton, David Cc: Callaghan, James

Subject:

FW: Water In Torus Vent Bowls TE Mr. Pelton, Per Jim Callaghan's request, I am sending you TE-2001-039.

Pedro

<< File: TE-2001-039.pdf >>

Pedro B. Perez Entergy Northeast Vermont Yankee 802.451.3118 This e-mail and any attachments thereto are intended only for the use by the addressee(s) named herein and contain proprietary and confidential information. f you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution, or copying of this e-mail and any attachments thereto is strictly prohibited. If you have received this e-mai in error, please notify me andpermnanently delete the oiginalandany copy of any e-mail and any printout thereof.

-- Original Message From: Kurul, Necdet Sent: Tuesday, January 14, 2003 4:17 PM To: Burch, David; Nik, Nasser Cc: Clark, Matthew; Chang, Choau-yan; Salim, Tanvir; Perez, Pedro; Robertshaw, Alan

Subject:

calc reviews using GOTHIC Dave and Nasser, The purpose of this e-mail is to bring to your attention a few points regarding GOTHIC. Since you review GOTHIC work from time to time, I hope this will be helpful for future reference.

1. The current GOTHIC version that appears in the Software Catalog is 6.0 (or 6.0a). Any other version of GOTHIC Is not qualified per Entergy SOA (I do not know the rules applicable to VY yet). This does not mean the newer versions will give erroneous answers, it only means we are stuck with the old version due to some unreasonable SQA requirements. We are trying to fix this. But for now, we should be sure to use the correct version.
2. GOTHIC 6.Oa has a number of errors. Most of these errors are not applicable to the models we routinely use. However, some may be applicable. The calculation should be reviewed with respect to these errors if the models susceptible to such errors are used in the calculation. The error reports, and the

guidance as to what should be reviewed at a minimum is available on the Web.

httP:/lwww.wPo.enterav.coml -> Engineering -> Manager, Nuclear Engineering Analysis ->

Transient & Thermal Hydraulics -> GOTHIC Software Control Plan... -> Excel Sheet for list of errors...

Also the calculation preparers should remember to send me Attachment 3 of the Software Control Plan whenever a calculation using GOTHIC is completed the latest.

Necdet Kurul Entergy Nuclear Northeast 440 Hamilton Ave.

White Plains, NY 10601 Phone: 914 272 3430 Fax: 914 272 3446 2