ML24155A192

Refueling Outage Unit 2 R33 Owners Activity Report for Class 1, 2, 3 and Mc Inservice Inspections

ML24155A192
Person / Time
Site:	Prairie Island
Issue date:	05/31/2024
From:	Borgen T Northern States Power Company, Minnesota, Xcel Energy
To:	Office of Nuclear Reactor Regulation, Document Control Desk
References
L-Pl-24-032
Download: ML24155A192 (1)

Text

1717 Wakonade Drive fl Xcel Energy Welch, MN 55089

May 31, 2024 L-Pl-24-032 10 CFR 50.55a

ATTN : Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

Prairie Island Nuclear Generating Plant, Unit 2 Docket No. 50-306 Renewed Facility Operating License No. DPR-60

Refueling Outage Unit 2 R33 Owner's Activity Report for Class 1, 2, 3 and MC lnservice Inspections

Northern States Power Company, a Minnesota corporation, doing business as Xcel Energy (hereafter "NSPM"), hereby submits the lnservice Inspection Summary report for inspections conducted prior to and during the Prairie Island Nuclear Generating Plant (PINGP) refueling outage U2R33 that concluded on March 1, 2024.

The Enclosure to this letter contains Form OAR-1, "Owner's Activity Report" for lnserv ice Inspections for Class 1, 2, 3 and MC components.

Summary of Commitments

This letter makes no new commitments and no revisions to existing commitments.

--~JJ~

Timothy P. Borgen Plant Manager, Prairie Island Nuclear Generating Plant Northern States Power Company - Minnesota

Enclosure

cc: Administrator, Region Ill, USNRC Project Manager, Prairie Island, USNRC Resident Inspector, Prairie Island, USNRC ENCLOSURE

FORM OAR-1, OWNER'S ACTIVITY REPORT FOR INSERVICE INSPECTION, FOR CLASS 1, 2, 3 AND MC COMPONENTS

2 pages follow FORM OAR-1 OWNER'S ACTIVITY REPORT Prairie Island Nuclear Generating Plant As required by the provisions of ASME Code Case N-532-5

Report Number 2R33

Unit No. -~2~--- Commercial service date __ 1=2=/2~1/~1=9~74~--- Refueling outage no. __ 2_R~3~3-

Current inspection interva l 5th ISi Inspection Interval for class 1. 2. and 3. 3rd IWE Inspection Interval for class MC

Current inspection period 3rd ISi Inspection Period for class 1. 2. and 3. 2nd IWE Inspection period for class MC

Edition and Addenda of Section XI applicable to the inspection plans 2007 Edition - 2008 Addenda for class 1. 2.

and 3. 2013 Edition for class MC __ _

Date and revision of inspection plans ___ 1~0~/1~1~/=2=3~R~e~v~. ~1~7~fo=r~c=la=s=s~1.~2=*~a=n=d~3=*-6=/~1=6=/2=3~R~ev~*~1~4~f=o~r~c=la=s=s~M~C~_

Edition and Addenda of Section XI applicable to repair/ replacement activities, if different than the inspection plans 2019 Edition for class 1 2 3 and MC.

Code Cases used for inspection and evaluat ion : N-532-5. N-716-1. N-805. N-864. N-885. N-892

CERTIFICATE OF CONFORMANCE I certify that (a) the statements made in this Owner's Activity Report are correct ; (b) the ex aminations and tests meet the Inspection Plan as required by the ASME Code,Section XI : and (c) the repair/replacement activ ities and evaluations supporting the completion of refueling outage number 2R33 conform to the requ irements of Sect ion XI.

Signed __ --.-_,.__c;z:r;--"-*~Pl/Ll ___,..___. ______ ~N=D~E~L=e~v=el~ll~I _____ Date __ '-/~-- 3_0_ =_;)._y __ _

Own~e, Title

CERTIFICATE OF INSERVICE INSPECTION I, the unders igned, 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 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 th is report in accordance with the requirements of Section XI.

By sign i ng this certificate neither the Inspector nor his employer makes any warranty, ex pressed 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.

Comm issions _ _,1c..:.7-==.23,,,8"-'-'-I.:..:N'------------

Inspector's Signature (National Board Number and Endorsement)

TABLE 1 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRED EVALUATION FOR CONTINUED SERVICE Examination Category Item Description Evaluation Description and Item Number 8-P, 815.10 SP 2392 UNIT 2 INSULATED MV-32233 RCS LP B HOT LEG RHR SPL Y, BOLTED CONNECTION approximately 1 tsp dry, white, BA at the INSPECTION body to bonnet flanges with no indication of active leakage. Accepted by evaluation QIM C-H, C7.10 SP 2392 UNIT 2 INSULATED 2VC-8-1 21 REGEN HX CHARGING INLET 501000077791.

BOLTED CONNECTION CHECK, more than a tsp of dry, white/brown INSPECTION boric acid and rust at the pipe flanges below the valve. There is no indication of active leakage. Accepted by evaluation QIM 501000077791.

C-H, C7.10 SP 2392 UNIT 2 INSULATED MV-32209 22 RHR HX TO 22 SI PUMP BOLTED CONNECTION SUCT ISOL MV, trace of white boric acid at INSPECTION the body to bonnet seal weld with no indication of active leakage and no contact with the studs. Accepted by evaluation QIM C-H, C7.10 SP 2168.13 SAFETY INJECTION 2Sl-12-1 21 ACCUM OUTL TEST LINE 501000077791.

SYSTEM PRESSURE TEST RELIEF,< 1 tsp dry white/brown residual at flanges below relief valve. Accepted by C-H, C7.10 SP 2168.14 CONTAINMENT MV-32110 21 RWST TO 21 CS PMP SUCT evaluation QIM 501000079768.

SPRAY SYSTEM PRESSURE TEST MV, < 2 TBSP dry, white/brown, at body to bonnet. Accepted by evaluation QIM 501000064638.

TABLE 2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE Code Plant ID# Item Description Description of Work Completed Date R/R Plan Class Completed #

1 257-051 Unit 2 Lower Replaced several baffle former bolts 2/15/2024 2-32-014 Internal Support with sec resistant material.

Baffle Former