ML20336A339

Refueling Outage Unit 1 R32 Owner'S Activity Report for Class 1, 2, 3 and Mc Inservice Inspections

ML20336A339
Person / Time
Site:	Prairie Island
Issue date:	12/01/2020
From:	Domingos C Northern States Power Company, Minnesota, Xcel Energy
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
L-Pl-20-062
Download: ML20336A339 (4)

Text

~ Xcel Energy 1717 Wakonade Drive Welch, MN 55089 December 1, 2020 L-Pl-20-062 10 CFR 50.55a ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 Prairie Island Nuclear Generating Plant, Unit 1 Docket Nos. 50-282 Renewed Facility Operating License No. DPR-42 Refueling Outage Unit 1 R32 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 inservice inspection summary report for inspections conducted prior to and during the Prairie Island Nuclear Generating Plant (PINGP) refueling outage U1 R32 that concluded on October 13, 2020.

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

Summary of Commitments This letter akes no newco-m nts and no revisions to existing commitments.

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Christopher P. D' mingos Site Vice President, 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

FORM OAR-1 OWNER'S ACTIVITY REPORT Prairie Island Nuclear Generating Plant As required by the provisions of ASME Code Case N-532-5 Repo rt N umber 1 R3 2 Plant _....P....r-=a.,_:..::"-'l=sl=a.,_,_

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Current inspec tion inte rval 5th ISi Inspection I nterval for class 1. 2 , and 3. 3rd IW E I nspection I nterval for c lass MC Cu rrent inspection period 2 nd ISi Inspe ction Period fo r class 1. 2 . and 3. 1 st IW E Inspection period fo r class M C Edit ion and Addenda of Section XI applicab le to the inspection plans 2 007 E dition - 2008 Addenda for class 1. 2 ,

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E dition and Addenda of Section XI applicab le to repai r/replacem ent activities . if different than the inspection plans Sam e as I nspect i on Plan fo r class 1 . 2 . and 3. 2007 Edition - 2008 Add enda fo r class M C Code Cases u sed for inspecti on and eval uation : __""'"N-_,_5 _,_13--= 3 , N - -5 3-= ,5 ""'"N-7 _,_16-"""1-, N--7-=2= 2-1 ___

CERTIFICATE OF CONFORMANCE I certify that (a) the statements made in this Owner's Activity 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 refueling outage number 1 R32 conform to the requirements of Section XI.

Signed /,t)IV'- ISi Engineer Date _l_l_-_'-/_-_Z.._o____

Owner or Owner's 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 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 this report in accordance with the requirements of Section XL 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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TABLE 1 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRED EVALUATION FOR CONTINUED SERVICE Examination Category and Item Description Evaluation Description Item Number B-P, B15.10 SP 1392 Bolted Connections Borated RC-2-1, TBSP dry, white, at body to bonnet Systems Pressure Test accepted by evaluation QIM 501000044639.

B-P, B15.10 SP 1392 Bolted Connections Borated 1FE-459, trace dry, white at bolted connection Systems Pressure Test accepted by evaluation QIM 501000044639.

B-P, B15.10 SP 1392 Bolted Connections Borated CV-31255, trace dry, white, at body to bonnet Systems Pressure Test accepted by evaluation QIM 501000044639.

B-P, B15.10 SP 1392 Bolted Connections Borated 135-011, trace dry, white at bolted connection Systems Pressure Test accepted by evaluation QIM 501000044639.

B-P, B15.10 SP 1392 Bolted Connections Borated MV-32165, 1-2 tsp dry, white, at body to Systems Pressure Test bonnet accepted by evaluation QIM 501000044639.

B-P, B15.10 SP 1392 Bolted Connections Borated MV-32231, 1/4 cup dry, white/brown at packing Systems Pressure Test and body to bonnet accepted by evaluation QIM 501000044639.

B-P, B15.10 SP 1392 Bolted Connections Borated 134-011, trace dry, white at bolted connection Systems Pressure Test accepted by evaluation QIM 501000044639.

C-H, C7.10 SP 1168.14 Containment Spray MV-32097, trace dry boric acid indication at System Pressure Test body to bonnet accepted by evaluation QIM 501000025480.

C-H, C7.10 SP 1168.14 Containment Spray 8-CS-4, < tsp dry white/brown boric acid System Pressure Test indication at flange accepted by evaluation QIM 501000025480.

C-H, C7.10 SP 1168.14 Containment Spray 1-CS-37, Tbsp dry white boric acid indication System Pressure Test at flange accepted by evaluation QIM 501000025480.

C-H, C7.10 SP 1168.14 Containment Spray 2-CS-12A, trace dry white boric acid indication System Pressure Test at flange accepted by evaluation QIM 501000025480.

F-A, F1.20c Aux Feedwater Support 1-AFWH-75, Bolt is tight, washer is loose accepted by evaluation QIM 501000044690 and EC 608000000635.

F-A, F1.30b Cooling Water Support 1-CWH-424, Cracks in weld accepted by evaluation QIM 501000044421 and EC 608000000635.

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

Class Description Completed ZH system 4-ZH-61 piping Due to MIC, a section of Chilled 121 Control Water (ZH system) piping and valve 2/6/2019 1-31-012 Room Chiller was replaced.

CL-16-4 3 Cooling Water Supply Cooling Replaced segments of Cooling Water 3-CL-88 Water Piping System piping due to MIC.

Segment 3 Cooling 2/20/2020 1-31-031 Replaced segments of Cooling Water 2-1/2-CL-88 Water Piping System piping due to MIC.

Segment Cooling Replaced segments of Cooling Water CW-17-7 Water Valve System piping due to MIC.

Cooling Replaced segment of Cooling Water 3 3-CL-88 Water Piping 9/21/2020 1-31-033 System piping due to MIC.

Segment Cooling Replaced segment of pipe due to 3 20-CL-3 Water Pipe 1/4/2019 1-31-004 MIC.

Segment Cooling Water Replaced segment of Cooling Water 3 3-CL-11 System 1/9/2020 1-31-029 System piping due to MIC.

piping segment CL System Replaced a segment of Cooling 3 3-CL-88 piping 11/5/2019 1-31-030 Water System piping due to MIC.

segment 12 MD AFW Replaced cooling water piping and CL-113-2 PMP CLG valve due to MIC.

WTR SPLY 3 10/30/2019 1-31-024 CL Piping Replaced cooling water piping and 4-CL-90 Segment valve due to MIC.

CL Piping Replaced cooling water piping and 4-CL-23 Segment valve due to MIC.

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