ML26072A274
| ML26072A274 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 03/13/2026 |
| From: | Hamman D Wolf Creek |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| Shared Package | |
| WCRE-36, I3-P3-RF27 | List: |
| References | |
| 001469 WCRE-36, I3-P3-RF27 | |
| Download: ML26072A274 (0) | |
Text
P.O. Box 411 l Burlington, KS 66839 l 620-364-8831 Dustin Hamman Director Nuclear and Regulatory Affairs March 13, 2026 001469 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001
Subject:
Docket No. 50-482: Containment Inservice Inspection Program Third Interval, Third Period, Refueling Outage 27 Owners Activity Report Commissioners and Staff:
Enclosed is the Wolf Creek Nuclear Operating Corporation (WCNOC) Owners Activity Report (Form OAR-1, Report Number WCRE-36 Rev. 6, I3-P3-RF27) documenting containment inservice inspections performed following the Wolf Creek Generating Station (WCGS) Refueling Outage 26 (RF26), which concluded on May 11, 2024, through the completion of Refueling Outage 27 (RF27) on November 16, 2025.
RF27 was the first refueling outage of the third period of the third interval of the WCNOC Containment Inservice Inspection Program. The enclosed report is submitted pursuant to the requirements of paragraph IWA-6240 of the 2013 Edition 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.
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
Enclosure:
WCNOC Containment ISI Form OAR-1, Report Number WCRE-36, I3-P3-RF27 cc:
A. N. Agrawal (NRC), w/e S. S. Lee (NRC), w/e J. D. Monninger (NRC), w/e Senior Resident Inspector (NRC), w/e WC Licensing Correspondence RA 26-001469, w/e W o If Cree k..... 1'\,~'ffl>
Nuclear Operating Corporation
Enclosure to 001469 ENCLOSURE Wolf Creek Nuclear Operating Corporation Containment Inservice Inspection Program Owners Activity Report (Form OAR-1, Report Number WCRE-36, I3-P3-RF27)
(4 pages)
FORM OAR-1 OWNER'S ACTIVITY REPORT Unit No. _,__ _____ Commercial service date--'9,._-.,,3'""-1,.,.,,8=-____,Refueling outage no._..LJ.l.--'-,..7,.._ ____ _
(if applicable)
Current inspection interval 3rd Current inspection period 3rd
{ls~ 2nd, 3rd, 4th, other)
(1st. 2nd. 3rd)
Edition and Addenda of Section XI applicable to the inspection plans...=20,._1,.,3,.,.E""'"'i,.,,ti= n _ ___ _
Edition and Addenda of Section XI applicable to repair/replacement activities, if different than the inspection plans __ _
Code Cases used for inspection and evaluation: _N
,..__,-5...,3..,_-,,_5,_N
,..__,-8,,,.,.~ -----------
(11 applicable, including cases modified by Case N*532 and later revisions)
CERTIFICATE OF CONFORMANCE I certify that (a) the statements made in this report are correct; (b) the examinations and tests meet the Inspection Plan as required by the ASME Code,Section XI; and (c) the repair/replacement activities and evaluations supporting the completion of RF-27 conform to the requirements of Section XI.
(refueling outage number)
Signed a a ~
ISi Engineer o_;;,-~ee, Title Date __
O~ 2c...*_'l.
'S-"'--* -=?....~'---- --
CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and employed by The Hartford Steam Boiler Inspection and Insurance Company of Hartford. CT have inspected the items described in this Owner's Activity Report, and state that, to the best of my knowledge and belief, the Owner has performed all activities represented by this report in accordance with the requirements of Section XI.
By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the repair/replacement activities and evaluation described in this report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this
- .spect}
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l'!sp4ctor's s(g,riat~
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National Board Number and Endorsement
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Date_,_,,_;_o_J_ l _o...c.<j_/_l-0_2_~_-_
OAR-I
/3-PJ-RF-27 Page 1 o/4
TABLE 1 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRED EVALUATION FOR CONTINUED SERVICE Examination Category and Item Number E-A El.30 E-A El.30 Item Description Moisture Barrier 2000' Elevation, Zone I Moisture Barrier 2000' Elevation, Zone 2 OAR-1 13-P3-RF-27 Page2of4 Evaluation Description The containment liner to concrete floor interface is degraded requiring rework. This condition has been evaluated underIWE-3122.3 and found that rework can be deferred to the next regularly scheduled outage per IWE-3512.
The containment liner to concrete floor interface is degraded requiring rework. This condition has been evaluated under IWE-3122.3 and found that rework can be deferred to the next regularly scheduled outage per IWE-3512.
Code Class TABLE2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE Item Description Description of Work None OAR-1 13-P3-RF-27 Page3of4 Date Repair/Replacement Completed Plan Number Note 1
AIT ACHMENT 1 As specified in the inspection plan, WCRE-36, this attachment is added to meet the requirements of 10 CFR 50.55a(b)(2)(viii)(H) and 10 CFR 50.55a(b)(2)(ix)(A)(2) 10 CFR 50.55a(b){2)(viii)(H)
As noted in WCRE-36, there are no inaccessible areas identified that meet the criteria of this section.
I0CFR 50.55a(b){2)(ix)(A){2)
As noted in WCRE-36, there are no inaccessible areas identified that meet the criteria of this section.
OAR-I I3-P3-RF-27 Page4of4