ML24248A249

Inservice Inspection Program Fourth Interval, Third Period, Refueling Outage 26 Owner’S Activity Report

ML24248A249
Person / Time
Site:	Wolf Creek
Issue date:	09/04/2024
From:	Hamman D Wolf Creek
To:	Office of Nuclear Reactor Regulation, Document Control Desk
References
000592
Download: ML24248A249 (1)

Text

Dustin Hamman Director Nuclear and Regulatory Affairs

September 4, 2024 000592

U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001

Subject:

Docket No. 50-482: Inservice Inspection Program Fourth Interval, Third Period, Refueling Outage 26 Owners Activity Report

Commissioners and Staff:

Enclosed is the Wolf Creek Nuclear Operating Corporation (WCNOC) Owners Activity Report (Form OAR-1, Report Number WCRE-30 Rev. 7, I4/P3 -RF2 6) for inservice inspections performed after Wolf Creek Generating Stations (WCGS) Refueling Outage 25 (RF25) that concluded on November 20, 2022, and up to, and including, WCGS Refueling Outage 26 (RF26) that concluded on May 11, 2024. RF26 was the second refueling outage of the third period of the fourth interval of the WCNOC Inservice Inspection Program. The enclosed report is submitted pursuant to the requirements of paragraph IWA-6240 of the 2007 Edition through 2008 Addenda of Section XI of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code and ASME Code Cases N-532-5 and N-892.

In addition to the above, industry driven, non-ASME Code ultrasonic (UT) inspections were performed on the reactor vessel clevis insert bolts per Pressurized Water Reactor Owners Group (PWROG) letter OG-21 -160R1. Indications were identified using the non-Code method and evaluated through the Wolf Creek corrective action program condition report 10032127. This evaluation was provided to the NRC ISI inspector during RF26. No relevant indications were identified during the ASME visual inspections and therefore were excluded from the OAR -1 report.

This letter contains no commitments. If you have any questions concerning this matter, please contact me at (620) 364-4204.

Sincerely,

Dustin T. Hamman

DTH/jkt

P.O. Box 411 l Burlington, KS 66839 l 620-364-8831

Enclosure:

WCNOC ISI Form OAR-1, Report Number WCRE-30, I4/ P3 -RF2 6

cc: S. S. Lee (NRC), w/e J. D. Monninger (NRC), w/e D. L. Proulx (NRC), w/e Senior Resident Inspector (NRC), w/e WC Licensing Correspondence RA 24-000592, w/e Enclosure to 000592

ENCLOSURE

Wolf Creek Nuclear Operating Corporation Inservice Inspection Program Owners Activity Report (Form OAR-1, Report Number WCRE -30, I4/ P3 -RF2 6)

(3 pages)