ML20009F331

Refueling Outage Unit 2 R31 Owner'S Activity Report for Class 1, 2, 3 and Mc ISI Examinations

ML20009F331
Person / Time
Site:	Prairie Island
Issue date:	01/09/2020
From:	Sharp S Northern States Power Co, Xcel Energy
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
L-Pl-20-003
Download: ML20009F331 (4)

Text

fl Xcel Energy*

RESPONSIBLE BY NATURE 1717 Wakonade Drive Welch, MN 55089 JAN O9 2020 L-Pl-20-003 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 Nos. 50-306 Renewed Facility Operating License No. DPR-60 Refueling Outage Unit 2 R31 Owner's Activity Report for Class 1, 2, 3 and MC ISi Examinations Northern States Power Company, a Minnesota corporation, doing business as Xcel Energy (hereafter "NSPM"), hereby submits inservice inspection summary reports for inspections conducted prior to and during the Prairie Island Nuclear Generating Plant (PINGP) refueling outage U2R31 that concluded on October 28, 2019.

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 makes no new commitments and no revisions to existing commitments .

.k~~

Scott Sharp 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

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 Pl.ant As required btthe provisions of ASME Code Case N-532-5 Report Number 2R31 Plant _...,P...,r=a~iri=e~l=sl=a,__,_nd"-'-'N=u=cl=e=ar'""G=en'"'e=r=a=tin.,_g,__,__P=la,,_,n=t...,1_,_7_,_17.a-...,.W_,_,a=k=o=ri=ad=e=--=D_,_,ri-=-ve=--=E=a=st:,_,..,_W.,_,e=lc=h.,,_1 .,.,M""'i,.,,nn""e~s=oc:::ta..,.,.::5c:::5=08""9:.__ __

Unit No. 2 Commercial service date 12/21/1974 Refueling outage no. 2R31 Current inspection interval _5th ISi Inspection Interval for class 1, 2, and 3. 3rd IWE Inspection Interval for class MC Current i~spection peri~d _ 2 ISi Inspection P.eriod for class 1, 2, and 3.

nd 1st 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 _ _3/12/19 Rev. 6 for class 1, 2. and 3. 4/05/19 Rev. 11 for class MC Edition and Addenda of Section XI applicable to repair/replacement activities, if different than the inspection plans Same as Inspection Plan for class 1.2. and 3. 2007 Edition - 2008 Addenda for class MC Code Cases used for inspection and evaluation: N-513-4, N~532-5, N-716-1. N-770-2, N-805 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 2R31

• conform to the requirements of Section XI.

Date //- 2,6 - zo I 9 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 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.

-+----'COf----1-----'---+----- Commissions NB 12085 N I R (National Board Number and Endorsement) 1 Date --'-a""""--"'*=,)("-'-'-W---'0'-J-'-,_fa.c...1..... f_- -

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, 815.10 SP 2168.1 RCS Pressure Test SV-37094 less than tsp dry, white BA acid at body to bonnet. Accepted by evaluation QIM 501000033934.

B-P, 815.10 SP 2392 Bolted Connections Borated C\(-31229 1 tsp dry, white BA acid at body to Systems Pressure Test bonnet. CV-31422 Trace dry BA and rust bottom of body flange. MV-32233 1 tsp dry white/brown BA at body to bonnet. Accepted by evaluation QIM 501000033304.

C-H, C?.10 SP 2392 Bolted Connections Borated MV-32208 1 tsp dry, white BA at body to Systems Pressure Test. bonnet seal weld. Accepted by evaluation QIM 501000033304.

C-H, C7.10 SP 2168.14 Containment Spray CS-45 Trace dry, white boric acid at body to System Pressure Test bonnet. MV-3211 0 1 tsp dry, white boric acid at body to bonnet. Accepted by evaluation QIM 501000025759.

TABLE 2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE Installed flush patch to restore pipe corroded due to MIC.