ML24065A299

Enclosure - Callaway Nuclear Plant: Form Oar-1 Owners Activity Report

ML24065A299
Person / Time
Site:	Callaway
Issue date:	03/05/2024
From:	Ameren Missouri, Union Electric Co
To:	Office of Nuclear Reactor Regulation
Shared Package
ML24065A297	List: ML24065A299 ULNRC-06852, Owners Activity Reports (OAR-1 Forms) for Cycle/Refuel 26
References
ULNRC-06852
Download: ML24065A299 (1)

Text

Enclosure to ULNRC-06852 March 5, 2024

Enclosure

OAR-1 Forms (2)

(Five pages follow this cover sheet.)

E170.0100

CALLAWAY NUCLEAR PLANT FORM OAR-1 OWNERS ACTIVITY REPORT

Report Number 26

Plant Callaway Energy Center, 8315 County Road 459, Steedman, MO 65077

Unit No. 1 Commercial service date 12/19/1984 Refueling outage no. 26 (if applicable)

Current inspection interval 4th Interval (ISI Program Plan)

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

Current inspection period 3rd Period (ISI Program Plan)

(1st, 2nd, 3rd)

Edition and Addenda of Section XI applicable to the inspection plans 2007 Edition with 2008 Addenda

Date and revision of inspection plans ISI Program Plan: 19-October-2022, Rev. 004

Edition and Addenda of Section XI applicable to repair/replacement activities, if different than the inspection plans Same as in spection plan.

Code Cases used for inspection and evaluation: N-532-5, N-661-2, N-716-1 and N-892 (if 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 re quired by the

ASME Code,Section XI; and (c) the repair/replacement activities and evaluations supporting the completion of 26 (refueling outage number) conform to the requirements of Section XI.form to thereqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqquirements of Section XI.

Signed ISI/Welding Eng. Date 26-February-2024nedPIN 133511IS I

Owner or Owners Designee, TitleOwner or Owners Designeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee, TiTTiTTTTiTTTTTTTTTiTTTTTTTTTiTiTTTTTTitltttltltletlellllll

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 Hartford Steam Boiler Inspection and Insurance Co. of Hartford, Connecticut have inspected the items described in this Owners Activity Report, and state that, to the best of my knowledge and belief, the Owner has performed all activities repre sented 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 sh al l be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this ins pe ction.

Commission NB 14725 Endorsements: C, I, N, R Inspectors Signature (National Board Number and Endorsement)InspInspInspInspInspInspInspInspInspInspInspInspInsInsnspnsnsnspnspnspnspnspnsnsnsnspnspnspnspnspnsnsnspnspnnspnspnspnspnspnsnspspspspspppppppppppppppppppppectoectoectoectoectoectoectoectoectoectoectoectoectoectoectoectoectoectoectoectoectoectectoectoectoectoectoectoectoectoectoectoectoectoectoectoectoectoeecectoectoectoecteeeeeeectoctoctoctoctoctoctoctocctoctoctoctctoctocctotttototttttototototttotototttooooooooooooooorsrrsrsrs rsrsrsrsrsrsrsrsrsrsrsrrsrrsrsrsrsrsrsrsrsrsrsrsrsrsrsrsrsrsrsrsrrrrrsrsrsrsrsrsrrsrsrsrrsrrsrrrsrrrrsrrrrsssssssssssssssssssssssssSignSignSignSignSiSigSignSignSignSignSignSignSigSigSiSignSignSignSignSignSigSigSignSignSignSignSignSignSignSignSignSignSignSignSignSignSignSignSSigSigSigSignSignSignSignSignSigSignSSignSignSigSignSSignSigSigSigSigSignSignSSignSSSignSignSiSignSignSignSigSSignSSignSignSignSignSSigSignSignSignSigSignSSSSigniigiiiignignigngnggngggggngngngnnaturaturaturaturaturaturaturaturaturaturaturatuaturatuatuaturaturatuatuaturatuaturaturaaturatatatatuatuaturaturaturaturatatataturaturaturaturaturataatuaturaturaturaturaatatuatuaatuaturataturaatuaturaturaturaturaaturaatatuatutttttttttttttuturturrrrreeeeeeeeeeeeeeeeeeeeeeeeeee

Date )HEUXDU\\

(06/11)

CALLAWAY NUCLEAR PLANT FORM OAR-1 OWNERS ACTIVITY REPORT

Report Number NED20230046

Plant Callaway Energy Center, 8315 County Road 459, Steedman, MO 65077

Unit No. 1 Commercial service date 12/19/1984 Refueling outage no. 26 (if applicable)

Current inspection interval 3rd (IWE and IWL Programs)

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

Current inspection period 3rd (IWE and IWL Programs)

(1st, 2nd, 3rd)

Edition and Addenda of Section XI applicable to the inspection plans 2007 Edition with 2008 Addenda

Date and revision of inspection plans IWE Program: 10/10/2019, Rev 4.1 IWL Program: 07/23.2018, Rev 4

Edition and Addenda of Section XI applicable to repair/replacement activities, if different than the inspection plans Same as inspection plan.

Code Cases used for inspection and evaluation: N-532 and N-765 (if 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 26 (refueling outage number) conform to the requirements of Section XI.

Signed Date 11/29/2023 Owner or Owners Designee, TitleOODiTitl

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 of have inspected the items described in this.+DUWIRUG6WHDP%RLOHU,QVSHFWLRQDQG,QVXUDQFH&R  +DUWIRUG &RQQHFWLFXW Owners Activity Report, and state that, to the best of my knowledge and belief, the Owner has performed all activities represe nted 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 shal l 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.

Commission 1% (QGRUVHPHQWV & , 1 5 Inspectors Signature (National Board Number and Endorsement)InspInspInspInspInspInspInspInspInspInspInspInspnspnspnspnspnspnspnspnspnspnspnspnspnspnspspsppppppectoectoectoectoectoectoectoectoectoectoectoectoectoectoectoectoectoectoectoectoectoectoectoectoectoectecctoctctocctoctoctctoctoctttoooooooooooooors rs rs rs rs rsrs rs rs rs rs rsrsrs rsrsrs rsrsrs rsrsrsrs rs rrrrs rrrrrrrrrrrsssssss SignSignSignSignSignSignSignSignSignSignSignSignSignSiSignSignSignSignSignSignSignSignSignSigSignSignSignSSSignSSignSSSSSignSSSiignigniignignigngnnnnnaturatuaturaturaturaturaturaturaturaturaturaturaturaturaturaturaturaturaturaturatatuaturaturaturaaataaturaturatttttuueeeeeeeee

Date )HEUXDU\\

CALLAWAY ENERGY CENTER

TABLE 1 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRED EVALUATION FOR CONTINUED SERVICE Examination Item Evaluation Description Category Description and Item Number E-A, E.1.11 Incore sumpDuring RF 26, a CR was generated following the incore liner sump liner inspection.

CR 202307749-During the performance of ASME IWE PROGRAM ZONE 31 inspections on JOB 20513454-500, multiple areas of metal degradation and coating degradation were identified on the liner walls and the liner floor. Pit depths ranged from.0625" to.1875" in depth and.250" to 1.125" in diameter. In addition, the two sump pumps which are mounted to the sump floor have degraded fasteners. Of the two sumps pumps, with 4 hold down bolts each, only one has a nut left attached. The remaining 7 fasteners no longer have a nut and the remaining stud is degraded. The degraded bolting is outside the scope of the ASME IWE ZONE 31 inspection.

The unsatisfactory condition identified in CR 202307749 has been satisfactorily corrected in Jobs 20003148.496 and 20003148.500.

TABLE 2 ABSTRACT OF REPAIR/ REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE Code Item Description Description of Work Date Repair/Replacement Class Completed Plan Number CC Incore sump Liner Base metal repairs of 10/21/2023 Job 20003148.496 the Instrument Sump Liner CC Incore sump Liner Apply protective 10/22/2023 Job 20003148.496 coating to steel lining in the sump