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Category:Letter type:L
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FENOC Perry Nuclear Power Plant P.O. Box 97 10 Center Road FirstEnergy Nuclear Operating Company Peny' Ohl° 44081 David B. Hamilton 440-280-5382 Vice President March 20, 2018 L-18-036 10 CFR 50.46 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001
SUBJECT:
Perry Nuclear Power Plant Docket No. 50-440, License No. NPF-58 2017 Annual Report of Emergency Core Cooling System Errors and Model Changes Attached is the 2017 Annual Report of Emergency Core Cooling System Errors and Model Changes for the Perry Nuclear Power Plant. FirstEnergy Nuclear Operating Company (FENOC) is submitting this report to the Nuclear Regulatory Commission (NRC) in accordance with 10 CFR 50.46(a)(3)(ii).
There are no regulatory commitments contained in this submittal. If there are any questions or if additional information is required, please contact Mr. Thomas A. Lentz, Manager - Fleet Licensing, at (330) 315-6810.
David B. Hamilton
Attachment:
2017 Annual Report of Emergency Core Cooling System Errors and Model Changes cc: NRC Region III Administrator NRC Resident Inspector NRC Project Manager
Attachment L-18-036 2017 Annual Report of Emergency Core Cooling System Errors and Model Changes Page 1 of 1 New Errors and Changes:
Change in an acceptable evaluation model or application of such model:
Global Nuclear Fuel - Americas, LLC (GNF) provided 10 CFR 50.46 Notification Letter 2017-02, "Fuel Rod Plenum Temperature Update," to the Perry Nuclear Power Plant (PNPP) in August 2017. The notification identified a change in the evaluation model (EM) that is applicable to both the GEM and GNF2 fuel types used at PNPP. This change was reported to the Nuclear Regulatory Commission (NRC) by FirstEnergy Nuclear Operating Company (FENOC) Letter, dated August 21, 2017 (ADAMS No.
ML17233A279). As stated in the letter, the effect on licensing basis peak cladding temperature (PCT) is 0°F.
Errors:
GNF provided 10 CFR 50.46 Notification Letter 2017-01, "GNF2 Lower Tie Plate Leakage," to the PNPP in June 2017. The notification identified an error in the evaluation model that is applicable to the GNF2 fuel type used at PNPP. The effect on the licensing basis PCT is -20°F. This was not previously reported to the NRC, since the summation of absolute values of the changes and errors applicable to GNF2 fuel does not meet the definition of a significant change.
Report Summary:
The changes to and errors in the PNPP emergency core cooling system (ECCS) evaluation model in 2017 are summarized in the following table:
Perry Nuclear Power Plant, Unit 1 GE14 Fuel GNF2 Fuel PCT or PCT PCT or PCT Change Change Licensing Basis PCT at BEGINNING of 2017 1555°F 1630°F 2017 Activity EM Errors Notification Letter 2017-01: NONE -20°F GNF2 Lower Tie Plate Leakage EM Notification Letter 2017-02: 0°F 0°F Changes Fuel Rod Plenum Temperature Update Licensing Basis PCT at END of 2017 1555°F 1610°F