ML042400114
| ML042400114 | |
| Person / Time | |
|---|---|
| Site: | River Bend  |
| Issue date: | 08/23/2004 |
| From: | Entergy Operations |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| RBF1-04-0149, RBG-46308 | |
| Download: ML042400114 (3) | |
Text
-' En tergy Entergy Operations, Inc.
River Bend Station 5485 U. S. Highway 61 N St. Francisville. LA 70775 Fax 225 635 5068 August 23, 2004 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555
Subject:
River Bend Station - Unit I Docket No. 50-458 License No. NPF-47 10 CFR 50.46 (a)(3)(ii) Report File No.
G9.5 RBG-46308 RBF1 0149 Ladies and Gentlemen:
In accordance with 10 CFR 50.46 (a)(3)(ii), River Bend Station (RBS) is required to report changes to or errors discovered in acceptable ECCS evaluation models on an annual basis.
RBS is obligated to report the nature of the change or error and its estimated effect on calculated Peak Clad Temperature (PCT).
General Electric/Global Nuclear Fuel (GE/GNF) has issued Notification Letter (NL-2003-05) to River Bend Station (RBS) on the impact of errors/changes in the SAFER methodology used by GE/GNF. The PCT error associated with the ATRIUM-1 0 methodology is reported separately by Framatome ANP (FANP). A summary of these notifications follows:
10 CFR 50.46 (a)(3)(ii) Report RBG-46308 RBF1-04-0149 Page 2 of 3 Notification Nature of change Estimated PCT Effect GENE FANP GE/GNF An additional heat source in the reactor vessel 0
NL2003-05 following a LOCA.
FANP PCT An error in the application of the Peak Cladding 0
Error Report Temperature HUXY quenching model.
Sum of absolute magnitude of errors during this period 0
0 Cumulative sum of absolute magnitude of errors prior to this 25 0
period Cumulative sum of absolute magnitude of errors including this 25 0
- period, The LOCA analysis results continue to meet the acceptance criteria of IOCFR50.46(b)(1) that the PCT shall not exceed 2200 deg F. No reanalysis is required per I OCFR50.46(a)(3)(ii) and the errors are not considered significant change.
In summary, the LOCA analysis results for PCT continue to meet the acceptance criteria and there is no safety concern.
For further information, contact Mr. B. M. Burmeister at (225) 381-4148.
Sincerely, k
I RJK/BMB cc:
U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011
10 CFR 50.46 (a)(3)(ii) Report RBG-46308 RBFI-04-0149 Page 3 of 3 NRC Sr. Resident Inspector P. 0. Box 1050 St. Francisville, LA 70775 INPO Records Center 700 Galleria Parkway Atlanta, GA 30339-3064 Mr. Jim Calloway Public Utility Commission of Texas 1701 N. Congress Avenue Austin, TX 78711-3326 Louisiana Department of Environmental Quality Radiation Protection Division P. 0. Box 82135 Baton Rouge, LA 70884-2135 ATTN: Administrator