ML20042C896

Lnservice Inspection Program Fourth Interval, Second Period, Refueling Outage 23 Owner'S Activity Report

ML20042C896
Person / Time
Site:	Wolf Creek
Issue date:	02/04/2020
From:	Benham R Wolf Creek
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
RA 20-0007
Download: ML20042C896 (5)

Text

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W~~; ,,~LF CREEK

'NUCLEAR OPERATING CORPORATION Ron Benham Manager Nuclear and Regulatory Affairs February 4, 2020 RA 20-0007 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555

Subject:

Docket No. 50-482: lnservice Inspection Program Fourth Interval, Second Period, Refueling Outage 23 Owner's Activity Report To Whom It May Concern:

Enclosed is the Wolf Creek Nuclear Operating Corporation (WCNOC) Owner's Activity Report (Form OAR-1, Report Number WCRE-30, 14-P2-RF23) for inservice inspections performed after Wolf Creek Generating Station's (WCGS) twenty-second refueling outage (RF22) that concluded on May 18, 2018, and up to, and including, WCGS' twenty-third refueling outage (RF23) that concluded on November 6, 2019. RF23 was the first refueling outage of the second period of the fourth interval of the WCNOC lnservice 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 Case N-532-5.

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

Sincerely,

~ ~,~

1Y~~-a/t~~

I

/ /

Ron Benham RDB/rlt Enclosure cc: S. A. Morris (NRC), w/e N. O'Keefe (NRC), w/e B. K. Singal (NRC), w/e Senior Resident Inspector (NRC), w/e P.O. Box 411 / Burlington, KS 66839 / Phone: (620) 364-8831 An Equal Opportunity Employer M/F/HCNET

ENCLOSURE Wolf Creek Nuclear Operating Corporation lnservice Inspection Program Owner's Activity Report (Form OAR-1, Report Number WCRE-30, 14-P2-RF23)

(3 pages)

FORM OAR-1 OWNER'S ACTIVITY REPORT Report Number WCRE-30. 14-P2-RF23~---- -*

Plant Wolf Creek Generatino Station. 1550 Oxen Lane North\lfill.U!~u:.!i.!lgt=o~n~Ka=n=s=as~6=6~8=3=9_ _ _ _ _ _ _ _ __

Unit No.-,-~---,--- Commercial service date 9-3-1985 Refueling outage no .... _ RF-23 _______..........__

(if applicable)

Current inspection interval 4th (1s1:,2nd,3rd.4l~~

Current inspection period 2nd

{1st. 2nd, 3rd}

Edition and Addenda of Section XI applicable to the inspection plans _200LEJJitLQD. throuoh 2008 Addenda ..... ____ _

Date and revision of inspection plans. WCRE-30 Rev. 2, datecj~2~-2=2=*=2~0~1=8_ _ _ _ _ _ __

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~5133LN-532-!5,N-706-1 ..- ...........____..............................._ ............................________ _

(if applicable, including cases modified by CasB N-532 and later revisions)

CERTIFICATE OF CONFORMANCE I certify that (a) the statements made in this report are correct; (bl the examinations and tests meet the Inspection Plan as required by the ASME Code,Section XI; and (cl the repair/replacement activities and evaluations supporting the completion of RF-23 conform to the requirements of Section XI.

(rofuoling outage number)

Signed ~.d::/C_ _ ISi Eri9illiLEll_ Date _ _ .;._J_-_2--'q'---}.._0_2____ _0 _

Owneroritwnor's Oe!;ignee, TitJo

• CERTIFICATE OF INSERVICE INSPECTION I, the undersigned. holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and emplqyed by --~Th~"~l-i.'l!:1!9rd Steam Boiler ln§pection anp..Jri§..\!.G!Df.e. Comr;,!lny____ 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 inspection.

~~/

..!-.::: - ~ Commissions _....:.f-=S'--""'t°'""?J-"-*-',')'-----"L='-"....:./1,,j--'/'--,'(-------'

National Board Number .ond Endors9ment Inspector's Signature Date_ //J. L?/;w/;

OAR-1 14-P2-RF-23 Page 1 oj3

TABLE I ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRED EVALUATION FOR CONTINUED SERVICE

-- Examination Item Description Evaluation Description Category and Item Number D-B;D2.IO EFl 96HBC-3"/FEF02B A pinhole leak was discovered Backwash Piping on the backwash piping line from the "B" Essential Service Water Self Cleaning Strainer.

An evaluation was performed for continued operation. The evaluation determined that pressure boundary structural integrity is intact. Periodic examinations were required to be performed. This line was subsequently replaced under Repair/Replacement Plan 2018-035.

OAR-I I4-P2-RF-l3 Page2oj3

TABLE2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE I  ; *-*

I Date Repair/Replacement

! Code Item Description of Work t

Class Completed Plan Number Description I Note 1 j

I I I

3 ESWPIPING REPLACE 4" x 3" REDUCER UPSTREAM OF 9/18/2018 2018-029 I

EFV0072 DUE TO THROUGH WALL LEAK j EF06-S067/152 3

I CCWPIPING REPAIR THROUGH WALL LEAK IN PIPE AT 9/18/2018 2018-025 f

TOE OF SOCKET WELD COUPLING ON EG23HBC-2 EEG01A CHANNEL HEAD DRAIN LINE I 3 CCWPIPING I REPLACE DRAIN LINE BETWEEN EGV0029 12/18/2019 2018-026 AND EEG01A THAT WAS REPAIRED EG23HBC-2 UNDER SECTION XI REPAIR/REPLACEMENT PLAN 2018-025 I 3 I I

ESWPIPING REPLACE PIPE SPOOL DUE TO THROUGH 3/11/2019 2018-035 WALL LEAK -

EF196HBC-3 2 NORMAL [ REPLACE SECTION OF PIPE SPOOL DUE 1/6/2020 2019-062 i

CHARGING LINE TO REJECTABLE INDICATIONS THAT

, EXCEEDED MINIMUM WALL UNDER PIPE BG026BCB-2 CLAMP DURING PERFORMANCE OF PT I EXAMINATION I

lI I 2019-064 1/8/2020 2

I CONTAINMENT REPLACE VALVE DISC TO CORRECT LEAK-BY TO ACCEPTABLE LIMITS L___ J CLOSURE KCV0478 j

I I I Note 1: The date completed is the date the Form N1S-2A was certified.

OAR-1 I4-P2-RF-23 Page 3 o/3