GNRO-2004/00063, Report of Changes and Errors to 1OCFR50.46
| ML053070597 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 11/03/2005 |
| From: | Bottemiller C Entergy Operations |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| GNRO-2004/00063, GNRO-2005/00061 | |
| Download: ML053070597 (2) | |
Text
GNRO-2005/00061 November 3, 2005 U.S. Nuclear Regulatory Commission Attn : Document Control Desk Washington, DC 20555-0001 Subject :
Report of Changes and Errors to 1 OCFR50.46 Grand Gulf Nuclear Station Docket No. 50-416 License No. NPF-29
Reference:
GNRO-2004/00063 Ladies and Gentlemen :
In accordance with 10 CFR 50.46 (a)(3)(ii), Grand Gulf Nuclear Station (GGNS) is required to report to the Commission, at least annually, the estimated effect on the limiting Emergency Core Cooling System (ECCS) analysis caused by changes to or errors discovered in acceptable ECCS evaluations.
Upon completion of RF1 " GGNS contains a full core of Atrium-10 fuel provided by Framatome-ANP (FANP). As such, the ECCS analysis performed by General Electric Nuclear Energy (GENE) is no longer applicable to GGNS. The Table below summarizes the current ECCS analysis performed by FANP using their NRC approved methodology. There have been no changes or errors associated with the GGNS ECCS analyses since the last 10 CFR 50.46 report referenced above.
Notification Nature of change Estimated PCT Effect None No changes or errors have been identified since the last 10 CFR 50.46 report for GGNS.
N/A Sum of absolute magnitude of errors during this period N/A Cumulative sum of absolute magnitude of errors prior to this period 8
Cumulative sum of absolute magnitude of errors including this period 3
GNRO-2005/00061 Page 2 This letter does not contain any commitments. Should you have any questions or require additional information, phase contact this office Yours truly, CAB/WBA cc :
NRC Senior Resident Inspector Grand Gulf Nuclear Station Port Gibson, MS 39150 U. S. Nuclear Regulatory Commission ATTN : Dr. Bruce S. Mallet (w/2)
Regional Administrator, Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-4005 U. S. Nuclear Regulatory Commission ATTN : Mr. Bhalchandra Vaidya, NRR/DLPM (w/2)
ATTN : ADDRESSEE ONLY ATTN : U. S. Postal Delivery Address Only Mail Stop OWFN/7D-1 Washington, DC 20555-0001 Mr. D. E. Levanway (Wise Carter)
Mr. L. J. Smith (Wise Carter)
Mr. N. S. Reynolds Mr. J. N. Compton