ML24092A075
| ML24092A075 | |
| Person / Time | |
|---|---|
| Site: | Millstone  (NPF-049) |
| Issue date: | 03/28/2024 |
| From: | Armstrong L Dominion Energy Nuclear Connecticut |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| References | |
| 24-144 | |
| Download: ML24092A075 (1) | |
Text
Dominion Energy Nuclear Connecticut, Inc.
Millstone Power Station 314 Rope Ferry Road, Waterford, CT 06385 Dominion Energy.com MAR 2 8 202' U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 DOMINION ENERGY NUCLEAR CONNECTICUT, INC.
MILLSTONE POWER STATION UNIT 3 Serial No.24-144 NSSL/TFO RO Docket No.
50-423 License No.. NPF-49 3R22 REFUELING OUTAGE INSERVICE INSPECTION (ISi) OWNERS ACTIVITY REPORT EXTENSION This letter is to inform you that Dominion Energy Nuclear Connecticut, Inc. (DENG) will not be submitting the Millstone Power Station Unit 3 (MPS3), 3R22 Refueling Outage lnservice Inspection (ISi) Owner's Activity Report (OAR) by the 120-day due date after the completion of the refueling outage.
The 3R22 Refueling Outage ended on December 1, 2023, making the report due on April 1, 2024.
American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code Section XI, Article IWA-6200, contains requirements for the development and submittal of the report.
Specifically, IWA-6240(b), indicates the report is to be issued within 90 calendar days after completion of each refueling outage. Approved Code Case N-532 provides additional guidance related to report preparation and submission but continues to specify 90 calendar days. However, Code Case N-892 provides guidance that a period of 120 calendar days may be used as an alternative to IWA-6240(b). Code Case N-892 was approved on January 9, 2019, and is listed as "Acceptable.for Use" in NRC's Regulatory Guide 1.147, Revision 20.
Title 10, Code of Federal Regulations (CFR) 50.55a, "Codes and Standards",
paragraph (b)(2)(xxxii) was subsequently revised to specify that the OAR must be submitted within 120 days after completion of each refueling outage.
The reason DENG is not able to meet the 120-day requirement is that several ASME XI Repair/Replacement Work Orders and associated NIS-2A forms are still being processed. A Condition Report has been entered into the station corrective action program to address gaps in station's ability to issue this report in a timely manner.
DENG expects that these forms will be processed, and the Owner's Activity Report will be submitted by May 9, 2024.
Serial No.24-144 M PS3 Owner's Activity Report Extension Docket No. 50-423 Page 2 of 2 If you have any questions or require additional information, please contact Dean E.
Rowe, Manager Nuclear Emergency Preparedness/Licensing, at (860) 444-5292.
Sincerely, E~,c..
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Lori Armstrong Director, Nuclear Safety and Licensing - Millstone Commitments made in this letter: None cc:
U. S. Nuclear Regulatory Commission Region I 475 Allendale Road, Suite 102 King of Prussia, PA 19406-1415 R. V. Guzman Senior Project Manager - Millstone Power Station U. S. Nuclear Regulatory Commission One White Flint North, Mail Stop 08 C2 11555 Rockville Pike Rockville, MD 20852-2738 NRC Senior Resident Inspector Millstone Power Station