ML23075A074

Containment Inservice Inspection Program Third Interval, Second Period, Refueling Outage 25 Owners Activity Report

ML23075A074
Person / Time
Site:	Wolf Creek
Issue date:	03/16/2023
From:	Hamman D Wolf Creek
To:	Office of Nuclear Reactor Regulation, Document Control Desk
References
RA 23-0013
Download: ML23075A074 (1)

Text

Wo If Cree k. . .

Nuclear Operating Corporation 1'\,~'ffl>

Dustin Hamman Director Nuclear and Regulatory Affairs March 16, 2023 RA 23-0013 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001

Subject:

Docket No. 50-482: Containment Inservice Inspection Program Third Interval, Second Period, Refueling Outage 25 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. 5, I3-P2-RF25) for containment inservice inspections performed after Wolf Creek Generating Stations (WCGS) Refueling Outage 24 (RF24) that concluded on May 15, 2021, and up to, and including, WCGS Refueling Outage (RF25) that concluded on November 20, 2022. RF25 was the first refueling outage of the second 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 Case 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-P2-RF25 cc: S. S. Lee (NRC), w/e R. J. Lewis (NRC), w/e G. E. Werner (NRC), w/e Senior Resident Inspector (NRC), w/e P.O. Box 411 l Burlington, KS 66839 l 620-364-8831

Enclosure to RA 23-0013 ENCLOSURE Wolf Creek Nuclear Operating Corporation Containment Inservice Inspection Program Owners Activity Report (Form OAR-1, Report Number WCRE-36, I3-P2-RF25)

(4 pages)

FORM OAR-1 OWNER'S ACTIVITY REPORT Unit No. - ~_ _ _ __ Commercial service date 9-3-1985 Refueling outage no._ ~R=F~-2=5~ - -- - -

(if applfcable)

Current inspection interval 3rd (1st, 2nd, 3rd, 4th, other)

Current inspection period 2nd (1st, 2nd, 3rd)

Edition and Addenda of Section XI applicable to the inspection plans ~2= 0~13~ E~ it=io=n~ - - - --

Date and revision of inspection plans *~W ~ C~R-E_-=

36_ R=e~v~

. 5~ d-a-te=d~ 3-_6~-2=0-2-3~ - - - - - - - - - - - - - - --

Edition and Addenda of Section XI applicable to repair/replacement activities, if different than the inspection plans _ __

same Code Cases used for inspection and evaluation: ~N~-5=3=2_-= 5~N ~ -8=9=2~ - - - - - -- - -- -- - - - - -

Ut 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 R_F-2 conform to the requirements of Section XI.

(refueling outage number)

Signed ~ ; r ( ~ee,Titl!SI Engineer Date _ _ ~ 0~3=/=0~7~ /2=3~ - -- - - -- -- -

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and 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 inspection.

~,~"'-----'~'---~

, ,. '---=----=~

Inspector's Signature

=------ Commissions - ~/~S- _Lft, ~ 2-__l~./v: ~*~"- *C.

National Board Number and Endorsement

~

OAR-1 13-P2-RF-25 Page I of4

TABLE 1 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRED EVALUATION FOR CONTINUED SERVICE Examination Item Description Evaluation Description Category and Item Number The containment liner to concrete floor interface is degraded requiring rework. This E-A Moisture Barrier 2000' condition was evaluated under El.30 Elevation, Zone 1 IWE-3122.3 and found that rework can be deferred 1 cycle oer IWE-3512.

The containment liner to concrete floor interface is degraded requiring rework. This E-A Moisture Barrier 2000' condition was evaluated under El.30 Elevation, Zone 2 IWE-3122.3 and found that rework can be deferred 1 cycle oer IWE-3512.

OAR-I I3-P2-RF-25 Page2of4

TABLE2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE Code Item Description of Work Date Repair/Replacement Class Completed Plan Number Description Note 1 None OAR-1 I3-P2-RF-25 Page 3 o/4

ATTACHMENT 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.

IOCFR 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 13-P2-RF-25 Page4of4