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 inspection 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 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 ISI/Welding Eng.

Date 26-February-2024 Owner or Owners Designee, Title 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 all 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 pection.

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

Date (06/11) form to the reqquirements of Section XI.

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CALLAWAY NUCLEAR PLANT TABLE 1 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRED EVALUATION FOR CONTINUED SERVICE Examination Category and Item Number Item Description Evaluation Description NONE

TABLE 2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE Code Class Item Description Description of Work Date Completed Repair/Replacement Plan Number NONE

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, Title 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.

Owners 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.

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CALLAWAY ENERGY CENTER TABLE 1 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRED EVALUATION FOR CONTINUED SERVICE Examination Category and Item Number Item Description Evaluation Description E-A, E.1.11 Incore sump liner During RF 26, a CR was generated following the incore 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 Class Item Description Description of Work Date Completed Repair/Replacement Plan Number CC Incore sump Liner Base metal repairs of the Instrument Sump Liner 10/21/2023 Job 20003148.496 CC Incore sump Liner Apply protective coating to steel lining in the sump 10/22/2023 Job 20003148.496