ML17005A318

American Society of Mechanical Engineers, Section XI, Initial Inservice Inspection Report

ML17005A318
Person / Time
Site:	Watts Bar
Issue date:	01/03/2017
From:	Simmons P Tennessee Valley Authority
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML17005A318 (5)

Text

Tennessee Valley Authority, Post Office Box 2000, Spring City, Tennessee 37381-2000 January 3, 2017 10 cFR 50.4 10 CFR 50.55a ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Watts Bar Nuclear Plant, Unit 2 Facility Operating License No. NPF-96 NRC Docket No. 50-391

Subject:

WATTS BAR NUCLEAR PLANT, UNIT 2 - AMERICAN SOCIETY OF MECHANICAL ENGINEERS, SECTION XI, INITIAL INSERVICE INSPECTION REPORT

References:

TVA letter to NRC, "Watts Bar Nuclear Plant, Unit 2 - American Society of Mechanical Engineers Boiler and Pressure Vessel Code Section Xl, lnitial lnservice lnspection Report - Revised Commitment," dated August 24,2016 (M1162374400) ln the referenced letter, the Tennessee Valley Authority (TVA) committed to the following action:

"The initial inservice inspection report shall be submitted to the NRC within 90 days following Unit 2 commercial operation for those repairs or replacements, if any, which were performed under Section Xl on Unit 2 between the initial code stamp up to commercial operations."

ln accordance with the above commitment, TVA is submitting to the Nuclear Regulatory Commission (NRC) the Watts Bar Nuclear Plant WBN) Unit 2, lnitial lnservice lnspection (lSl) Report. The enclosed report provides a summary of the results from repair/replacement activities within the American Society of Mechanical Engineers (ASME)

Section Xl boundary for WBN Unit 2 that occurred after ASME Code Section lll N-stamping of systems, and prior to the start of commercial operation that occurred on October 19, 2016. Therefore, the due date for this submittal is January 17,2017 (i.e., 90 days following commercial operations for WBN Unit 2).

As noted in the referenced letter, the format of the enclosed report is in accordance with ASME B&PV Code Section Xl, Division 1, Subsub Article IWA-6210 and ASME Code Case N-532-5, "Repair/Replacement Activity Documentation Requirements and lnservice

U. S. Nuclear Regulatory Commission Page2 January 3,2017 lnspection Summary Report Preparation and Submission Section Xl, Division 1." Code Case N-532-5 has been unconditionally approved for use by the NRC in Regulatory Guide 1.147, "lnservice lnspection Code Case Acceptability, ASME Section Xl, Division 1 ,"

Revision 17.

There are no new regulatory commitments associated with this submittal. Please address any questions regarding this submittalto Gordon Arent at(423) 36$2004.

Respectfully,

/

Paul Simmons Site Vice President Watts Bar Nuclear Plant

Enclosure:

Watts Bar Nuclear Plant Unit 2 - American Society of Mechanical Engineers, Section Xl, lnitial lnservice Inspection Report cc (Enclosure):

NRC Regional Administrator - Region ll NRC Senior Resident lnspector - Watts Bar Nuclear Plant NRC Project Manager - Watts Bar Nuclear Plant

ENCLOSURE WATTS BAR NUCLEAR PLANT UNIT 2 AMERICAN SOCIETY OF MECHANICAL ENGINEERS, SECTION X!, INITIAL INSERVICE INSPECTION REPORT

FORNi OAR.I OWNEIrSAgTIVITY REPORT Report Number u2c00 Plant Watts Bar Nuclear Plant P.O. Box 2000, Sprlng CltV, TN 3738L2000 Unlt No. 2 Commerdal servce rye October 19, 2016 Refueling OlbEe No, u2R00 (lf appficable]

cu'rcnthspdon'ffil l"iu1HEsTtffigu."

. Cunent lnspec$on Perlod NIA

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Editlon and Addenda sf Sectlbn Xl applicabletothe tnspection Plans 2001 Edition with 2003 Addenda Date / Revlston of lnspectlon Plans June 30, 2015 / WBN-Z PSl, Revision 11 Edtton and Addenda of Sectidt x applcaUeto repalr/reflacement acttvlues, lf dlfierem tiran thc lnspectlon plans ltame Code ca$s used fo.lnspc6lon and evaluadon: N460, ltl6!12 N.56&:, t{68er" il{95, ,$7A1.1, il-729r, t{.78,1 0trpCicrth. lndudhl ar Dndnd by cu trl4rl .rd Lt.r rduLtonrl CERIIFICAIE OF CONFORMANCE I certfi that (a) the statene,rts made ln ttls report ail correct; lb) the omlnatlons and tesB, meet the lnsesoon Plan r requlrtd by the ASME Code, Sectlon X; and (c) the repalr/replacement actlvltles and eraluatlons supportlng the cornpletlon of UzROO conformto the reguirernents of Sectlon X. {rctueltng outage numbar}

Signed Date / +r', I f,v61/64 CERITIFICATE OF INSERVICE INSPECIION t, the underslgned, holdng a valld conmlsslon ts$ed by the NaUonal Board of Eofler ard Pres/re Vesset lnspectot:

andemployed by TfteHartfordSteamEoller lnspecdmand lnsurancacompanyofcoNEctkul of Hartford,Conncthn tlalre lnspected the ltmsdetctlbed ln lils O$rilefu Acttulty Report and statethag tothe best of my knmLdge.nd bdlef, the Owfierhas psfurmed all actMtles rcprasentad bythls ruport ln accordance wlth thc requfernnts of Sedlon X.

8y slSnlng thb coruffcatc ndttler the lfisp.ctor nor his rmployer makes any uarnnty aQlBed or lmplled oncernlng the repalr/ Gplacemnt sdlvltlesardevaluadond.scrlHlnthlsreport, FurthGrmorgneftherthclnspectornorhlscnrploycrshallbclablelnanymannerforanypcrsonal Cornmlssions NB 14067A1N, TN 4132 Slgnahrre (National Boerd Numbcr and Endorsements)

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TABLE {

ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRED EVALUATION FOR CONTINUED SERVICE Examination Category and Item Description Evaluation Description Item Number None None None TABLE 2 ABSTRACT OF REPAIRS, REPLACEMENTS, OR CORRECTIVE MEASURES REQUIRED FOR CONTINUED SERVICE Repair /

Code Replacement Item Description Date Class Description of Work PIan Number Completed Work Order ruo)

Replace 3l4" diameter stud on shell side WBN-2-P\PE-070-C, (070) flange of the 2A Letdown Heat 3 04t20t2015 116202562 WBN-2-HTX-062-0124. Exchanger. (Replaced Non-Conforming Hardware)

Disassemble and inspect 2-C]ff-63-560 for suspected seat leakage. Replaced one 11t16t2015 117058827 1 WBN-2-CKV-063-0560 stud and nut. (Replaced Non-Conforming Hardware)

]

Perform ISLT l'-2 for WO 117058827. 04t22t2016 117331 668 SGH-1-1 , Replace sheared splice bolts on upper SGH.1.2, Steam Generator support for SG #2.

2 12t22t2015 117032292 SGH-1-3, Install anti-rotation plates by welding on all SGH-1-4 four SGs.

Replace flange bolting material. (Replaced 3 WBN-2-P\PE-067-C Non-Conform i ng Hardware) 03t14t2011 1117211 86 Perform ISLT (VT-2) for WO 1117211 86 03/1 4t2016 111954214 Replace bolts and nuts on support on 3/4" Pipe support 1 RPV vent line. (Bolting damaged during 03t15t2016 1 1 6990433 474465-1-59 RVH vent removal)

Replace one stud and one nut. (Stud and 1 wBN-2-RFV-68-563 05t12t2016 1 16013171 nut found damaged during disassemblv)

Replace 1 lnlet Flange Stud and 2 Nuts.

2 WBN-2-SFV-001-0528 (Stud and nut found damaged during 7 t11t2016 1 16977548 disassembly)

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