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GE Nuclear Energy
Electric Company
175 Curtner Ave., San Jose, CA 95125
August 31, 2001
01-02NRC.DOC
MFN 01-046
Document Control Desk
United States Nuclear Regulatory Commission
Washington, DC 20555
Subject: | Stability Reload Licensing Calculations Using Generic DIVOM Curve |
Reference: | MFN 01-025, Stability Reload Licensing Calculations Using Generic DIVOM Curve, from Jason S. Post, GENE, Manager Engineering Quality & Safety Evaluations, June 29, 2001, 01-01NRC.DOC. |
This letter provides final information concerning the non-conservative reload licensing calculations for stability Option III detect and suppress trip systems. The
non-conservatism could result in Option III stability trip system setpoints which do not provide adequate Minimum Critical Power Ratio (MCPR) Safety Limit
protection. The affected plants are in two categones:
The Category 1 and 2 plants are listed in Attachment 1. This final notification is provided under 10 CFR Part 21.21(d) as a reportable condition for the Category 1 plants which have reload licensing calculations performed by GE-NE, and as a transfer of information under 10 CFR Part 21.21(b) for the Category 1 plant which has reload licensing calculations not performed by GE-NE. The licensees for all Category 2 plants have also been notified. The BWROG is informed of this issue and has re-established the stability Detect & Suppress Committee to lead resolution of this issue. This final notification identifies all the affected plants, lists the actions taken and planned, and provides the final advice on this issue.