ML21196A502

Post-Outage 90-Day Inservice Inspection (ISI) Summary Report

ML21196A502
Person / Time
Site:	LaSalle
Issue date:	07/15/2021
From:	Washko J Exelon Generation Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
L2R18
Download: ML21196A502 (4)

Text

LaSalle County Station Exelon Generation . 2601 North 21 " Road Marseilles, IL 61341 815-415-2000 Telephone www.exeloncorp.com RA21-042 10 CFR 50.55a(g)

July 15, 2021 United States Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555 LaSalle County Station, Unit 2 Renewed Facility Operating License No. NPF-18 NRC Docket No. 50-374

Subject:

Post-Outage 90-Day lnservice Inspection (ISi) Summary Report Exelon Generation Company, LLC (EGC) provides the attached Post-Outage 90-Day lnservice Inspection (ISi) Summary Report for LaSalle County Station Unit 2, submitted in accordance with 10 CFR 50.55a, "Codes and Standards," and the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code Case N-532-5, "Repair/Replacement Activity Documentation Requirements and lnservice Inspection Summary Report Preparation and Submission Section XI, Division 1."

The attached Post-Outage 90-Day ISi Summary Report is for examinations and repair/replacement activities performed between the end of LaSalle County Station Unit 2 seventeenth refueling outage on March 9, 2019, through the end of the eighteenth refueling outage (L2R18). This refueling outage started on February 15, 2021 and ended on April 19, 2021.

There are no regulatory commitments contained in this report. Should you have any questions concerning this letter, please contact Mr. Daniel Mearhoff, Regulatory Assurance Manager, at (815) 415-2800.

Respectfully,

~ .J--

Joh~ . u hko Site Vice President LaSalle County Station

Attachment:

Form OAR-1 Owner's Activity Report cc: Regional Administrator - NRC Region Ill NRC Senior Resident Inspector - LaSalle County Station

FORM OAR-1 OWNER'S ACTIVITY REPORT Report Number L2R 18 Plant LaSalle County Station, 2601 North 21st Road, Marseilles, IL 61341-9757 Unit No. 2 Commercial Service Date October 17, 1984 Refueling Outage Number L2R18 (if applicable)

Current Inspection Interval Fourth Inspection Interval (ISi), Third Inspection Interval (Containment ISi)

(1st, 2"'. 3, 4th , other)

Current Inspection Period Second Inspection Period (ISi and Containment ISi)

(1", 2"'. 3)

Edition and Addenda of Section XI applicable to the inspection plans ASME Section XI 2007 Edition through 2008 Addenda Date and Revision of inspection plans ISi Program Plan- February 11, 2021 Revision 1 Edition and Addenda of Section XI applicable to repair/replacement activities, if different than the inspection plans Same as above Code Cases used for inspection and evaluation: N-508-4, N-532-5, N-578-1, N-586-1, N-639, N-648-1, N-702, N-747, N-805 (1f 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 L2R18 conform to the requirements of Section XI. (refueling outage number)

Signed '?Jt+~----1 ~ /?/J IC fl.1 Ill (Owner or Owner's designee. Title)

i 6 µ<;. 111,1 c.en. Date 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, Connecticut 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.

{67rJ A I ~ (

(National Board Number a~dKorsement)

Date

TABLE 1 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRED EVALUATION FOR CONTINUED SERVICE Examination Examination Item Description Evaluation Description Category Item Number During a non-Code inspection of the upper tendon covers, 3/4" of water EC 633743 Rev 1, tendon V213B and None None was found inside the upper cover containment based on L2R 18 inspection (outside of the grease cap) of tendon results.

V213B. (IR 4406796)

TABLE 2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE Code Item Date Repair/Replacement Description of Work Class Description Com pleted Plan Number WO 4691305-47:2B33-F060B; BLEND 1 2B33-F060B INDICATION IN THE BOTTOM OF VALVE 04/16/2021 2797 BODY WO 4697590-59:2B33-F060A; BLEND 1 2B33-F060A INDICATION IN THE BOTTOM OF VALVE 04/14/2021 2798 BODY 1 WO 4691305-42: 2B33-F060B; Machining 2B33-F060B where anti-rotation segment and lower guide 04/20/2021 2803 plug set in the valve body.

1 WO 4697590-55: 2B33-F060A; Machining 2B33-F060A where anti-rotation segment and lower guide 04/13/2021 2804 plug set in the valve body.

1 WO 4697590-01 :2B33-F060A: Replace Ball 2810 2B33-F060A Shaft Assembly, Nuts Studs & Anti-Rotational 04/19/2021 Segment (non-pressure boundary) 1 WO 4691305-01 :2B33-F060B: Replace Ball 2B33-F060B Shaft Assembly, Nuts Studs & Anti-Rotational 04/19/2021 2811 Segment (non-pressure boundary)

WO 4902321-02: Plug and seal weld leaking 3 2E12-B001A tubes identified by eddy current testing and 03/04/2021 2672 inspection WO 5048109-03:2RT06AC-4" & 2RT06A-4":

RT piping 3 REPLACE DEGRADED SECTION(S) OF 03/02/2021 2691 replacement PIPING/ FITTINGS