Text

ASME Section XI Inservice Inspection Program Relief Request N1-I4-LMT-002 - Fourth Interval Period 2 Limited Examinations
	ML17121A036
Person / Time
Site:	North Anna
Issue date:	04/24/2017
From:	Mark D. Sartain; Virginia Electric & Power Co (VEPCO)
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	17-110
	Download: ML17121A036 (47)
	v • d • e

{{#Wiki_filter:VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 April 24, 2017 United States Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555 VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION) NORTH ANNA POWER STATION UNIT 1 ASME SECTION XI INSERVICE INSPECTION PROGRAM RELIEF REQUEST N1-14-LMT-002 - FOURTH INTERVAL PERIOD 2 LIMITED EXAMINATIONS Serial No. NAPS/JHL Docket No. License No. 10 CFR 50.55a 17-110 RO 50-338 NPF\\-4 Pursuant to 1 o CFR 50.55a(g)(5)(iii), Virginia Electric and Power Company (Dominion) requests relief for limited examination coverage (i.e., less than 90% weld coverage achieved, due to physical interferences that prohibited attaining full weld coverage) obtained during the inservice inspection (ISi) examinations at North Anna Power Station Unit 1 during the second period of the fourth ten-year ISi interval. These examinations were performed to meet the requirements of the 2004 Edition of ASME Section XI with no Addenda and the Risk-Informed/Safety-Based lnservice Inspection (RI-ISi) Program Plan based on Code Case N-716. Relief Request N1-14-LMT-002 is included in the attachment to this letter, and provides the basis for this request. The Facility Safety Review Committee has reviewed and approved the relief request. If you have any questions or require additional information regarding the information provided in the attachment, please contact Mr. Donald Taylor at (540) 894-2100. Very truly yours, M. D. Sartain Vice President - Nuclear Engineering and Fleet Support Attachment This letter contains no NRC commitments.

cc: Regional Administrator U.S. Nuclear Regulatory Commission Region II Marquis One Tower Serial No. 17-110 Docket No. 50-338 Fourth Interval Period 2 Limited Exam Relief Request Page 2 of 2 245 Peachtree Center Ave., NE, Suite 1200 Atlanta, Georgia 30303-1257 Mr. J. E. Reasor, Jr. Old Dominion Electric Cooperative Innsbrook Corporate Center 4201 Dominion Blvd. Suite 300 Glen Allen, Virginia 23060 NRC Senior Resident Inspector North Anna Power Station Ms. B. L Mozafari NRC Project Manager - North Anna U. S. Nuclear Regulatory Commission One White Flint North Mail Stop 0-8 G9A 11555 Rockville Pike Rockville, Maryland 20852 Ms. K. R. Cotton-Gross NRC Project Manager - Surry U. S. Nuclear Regulatory Commission One White Flint North Mail Stop 0-8 G9A 11555 Rockville Pike Rockville, Maryland 20852

Serial No.17-110 Docket No. 50-338 NAPS Unit 1 4th Interval 2"d Period Limited Exams ATTACHMENT N1-14-LMT-002 UNIT 1 FOURTH INTERVAL PERIOD 2 LIMITED EXAMS VIRGINIA ELECTRIC AND POWER COMPANY (DOMINION) NORTH ANNA POWER STATION UNIT 1

Serial No. 17-110 Docket No. 50-338 NAPS Unit 1 41h Interval 2nd Period Limited Exams [THIS PAGE INTENTIONALLY LEFT BLANK]

N1-14-LMT-002 Serial No. 17-110 Docket No. 50-338 NAPS Unit 1 4th Interval 2nd Period Limited Exams Page 3 of 45 UNIT 1 FOURTH INTERVAL PERIOD 2 LIMITED EXAMS CONTENTS 1.0 ASME CODE COMPONENT{S) AFFECTED.................................................................... 4 2.0 APPLICABLE CODE EDITION AND ADDENDA..............................................................4 3.0 APPLICABLE CODE REQUIREMENT.............................................................................4 A1 Pressurizer Nozzle-To-Vessel Welds............................................................................. 6 4.A 1 IMPRACTICALITY OF COMPLIANCE 5.A 1 BURDEN CAUSED BY COMPLIANCE 6.A 1 PROPOSED ALTERNATIVE AND BASIS FOR USE R1 Elements Subject To Thermal Fatigue........................................................................... 20 4.R1 IMPRACTICALITY OF COMPLIANCE 5.R1 BURDEN CAUSED BY COMPLIANCE 6.R1 PROPOSED ALTERNATIVE AND BASIS FOR USE 7.0 DURATION OF PROPOSED ALTERNATIVE...................................................................45 8.0 PRECEDENTS.................................................................................................................. 45

9.0 REFERENCES

.................................................................................................................. 45 ENCLOSURES Enclosure A1-1, 11715-WMKS-RC-E-2 / 11 Data Report................................................ 8 Enclosure A 1-2, 11715-WMKS-RC-E-2 / 12 Data Report................................................ 13 Enclosure R1-1, 11715-WMKS-0103AF / 6-RC-18 / 2 Data Report.................................. 23 Enclosure R1-2, 11715-WMKS-0103Y / 6-RC-19 / 13 Data Report.................................. 28 Enclosure R1-3, 11715-WMKS-0103Y/ 6-RC-19/14 Data Report.................................. 33 Enclosure R1-4, 11715-WMKS-0111BB / 3-CH-1 / SW-1 Data Report... :........................40 TABLES Table 1, Repetitive/Duplicative Requests Requested in Accordance with 10 CFR 50.55a(g)(5)(iii), lnservice Inspection Impracticality.............................. 5

N1-14-LMT-002 UNIT 1 Serial No. 17-110 Docket No. 50-338 NAPS Unit 1 41h Interval 2nd Period Limited Exams Page 4 of45 FOURTH INTERVAL PERIOD 2 LIMITED EXAMS Relief Request in Accordance with 10 CFR 50.55a(g)(5)(iii) -- Notification of impractical /SI Code requirements -- 1.0 ASME CODE COMPONENT(S) AFFECTED Refer to Table 1, Columns 1 and 2. 2.0 APPLICABLE CODE EDITION AND ADDENDA The North Anna Power Station Unit 1 (NAPS 1) applicable Code for the fourth 10-year inservice inspection (ISi) interval and the ISi program is the 2004 Edition of ASME Section XI with no Addenda (Reference 1 ). NAPS 1 fourth interval started May 1, 2009 and ends April 30, 2019. 3.0 APPLICABLE CODE REQUIREMENT Refer to Table 1, Column 3. Components identified in this request require examination of essentially 100 percent of the weld length. "Essentially 100 percent" as clarified by ASME Code Case N-460, "Alternative Examination Coverage for Class 1 and Class 2 Welds," is greater than 90 percent coverage of the examination volume or surface area, as applicable. The risk-informed welds described in this request are governed by the Risk-Informed I Safety-Based lnservice Inspection (RI-ISi) Program Plan that was approved by the NRC for North Anna Power Station Unit 1 in a letter dated January 21, 2011 (Reference 7). The welds are assigned category R-A, Item R1.11, and require ultrasonic examination. The North Anna Unit 1 RI-ISi Program Plan, in accordance with Request for Alternative N1-14-Rl-001, applies the requirements of ASME Code Case N-716, "Alternative Piping Classification and Examination Requirements." The Item R1.11 elements are considered subject to Thermal Fatigue as the most likely degradation mechanism. Limited examinations in this request are in accordance with section 3.3.2 of approved request N1-14-Rl-001 (Reference 7).

REQUEST

1. ASMECODE

2. COMPONENT II;> NO.

3. APPLICABLE NUMBER COMPONENT CODE REQUIREMENT A1 Pressurizer Nozzle-To-Exam *category B-D Vi!Ssel Welds Item No. 83.110 11715-WMKS-RC-E-2 f 1-RC-E-2 I 11 11715-WMKS-RC-E-2 J 1-RC-E-2 I 12 R1 Elements Subject to Exam Categoiy R-A Thermal Fatigue Item Mo. R1.11 11715-WMKS-0103AF I 6-RC-18 J 2 11715-WMKS-0103Y J 6-RC-19113 11715-WMKS-0103Y J 6-RC-19 I 14 11715,WMKS-011188 /3-CH-1 / SW-1

4. IMPRACTICALITY

5. BURDEN OF COMPLIANCE CAUSED BY COMPLIANCE See Paragraph 4A1 See Paragraph 5A1 78.36%Volume Coveraae 78.36% Vo!ume Coveraae See Paragraph 4.R1 See Paragraph 5.R1 50% Volume Coveraae 50% Volume Coveraae 50% Volume Coveraae 88% Volume Coverage

6. PROPOSED

7. DURATION OF ALTERNATIVE PROPOSED AND BASIS FOR ALTERNATIVE USE See Paragraph 6A1 See Paragraph 7 See Paragraph 6.R1 See Paragraph 7

c (j)

"C (I) - Cl> -c c: "C c:;* SU - Cl>

c Cl>

..c c: Cl> (/) Cit z )> -u rn c ~

A1. Pressurizer Nozzle-To-Vessel Welds 4.A1 IMPRACTICALITY OF COMPLIANCE Serial No. 17-110 Docket No. 50-338 NAPS Unit 1 4th Interval 2nd Period Limited Exams Page 6 of 45 In accordance with 1 OCFR50~55a(g)(5)(iii), relief is requested from the "essentially 100 percent" volumetric examination coverage requirement for the identified Pressurizer Nozzle-To-Vessel Welds, ASME Section XI Category 8-D, Item No. 83.110. This requirement is considered impractical due to the pressurizer to nozzle weld configuration. As shown in the attached enclosures, ultrasonic examination of the following pressurizer nozzle-to-vessel welds are limited in coverage due to the pressurizer to nozzle weld configuration: Mark/Weld # Line # Scan Coverage % Enclosure 11 1-RC-E-2 78.36% A1-1 12 1-RC-E-2 78.36% A1-2 Examination of the subject pressurizer nozzle-to-vessel welds was performed to the extent possible using qualified equipment and no further coverage is possible with existing technology. Welds 11 and 12, safety valve nozzles, are limited to 78.36% due to nozzle geometry and because the cladding prevents extended V-path. Refer to Enclosures A1-1 and A1-2 for coverage details of the limitations experienced. Third interval relief for welds 11 and 12 was granted in Request N1-13-PRT-004-A4 (Reference 2) at 78.36% coverage. Second interval relief for welds 11 and 12 exam limitations was granted in Request NDE-20 at 72% coverage (different NOE guidelines for coverage calculations). The subject pressurizer nozzle-to-vessel welds are constructed of SA-508 Class 2, a P-Number 3, Group Number 3 carbon steel material, with austenitic stainless steel inside diameter cladding and stainless steel inserts. The welds extend the full thickness of the pressurizer vessel. Pressurizer upper and lower heads are fabricated from SA-533 Grade A, Class 2 carbon steel. The existing nozzle to pressurizer upper and lower heads are welded with low alloy steel filler, essentially the same as the nozzle material. The subject pressurizer nozzles have a minimum thickness of 2.5 inches with 0.19 inch cladding. These nozzles are of the "set-in" design, which essentially makes the welds concentric rings aligned parallel with the nozzle axes in the through-wall direction of the pressurizer vessel. This design geometry limits ASME Code-required UT angle beam examinations to being performed primarily from the vessel side of the welds. Although UT scans were primarily limited to the vessel side only, studies have found that inspections conducted through carbon steel are equally effective whether the ultrasonic waves have only to propagate through the base metal, or have to also propagate through the carbon steel weldment. Therefore, due to the fine-grained carbon steel microstructures, it is expected that the UT techniques employed would have detected structurally significant flaws on either side of the subject welds. Although Dominion considers it impractical to meet the ASME Code-required 100% volumetric examination coverage for the subject pressurizer nozzle-to-vessel welds due to nozzle configuration, it is believed that the coverage obtained would have identified

Serial No. 17-110 Docket No. 50-338 NAPS Unit 1 4th Interval 2nd Period Limited Exams Page 7 of 45 significant service-induced degradation. The examinations performed also provide reasonable assurance of the structural integrity of the subject welds. 5.A1 BURDEN CAUSED BY COMPLIANCE The ASME Code requires that the volumetric examination be conducted from both sides of these pressure retaining welds. However, the design configurations limit access for UT scanning primarily to the vessel side of the welds. In order to effectively increase the examination coverage, the nozzle-to-vessel welds would require design modifications or replacement. This is considered a burden making the ASME Code volumetric examination requirements impractical, which is contrary to the intent of the Code. 6.A1 PROPOSED ALTERNATIVE AND BASIS It is proposed that the examinations already completed at the reduced coverage be accepted as meeting the Code requirements. Alternative components could not be substituted for examination due to the mandatory selection requirements of the Code. The limited volumetric examinations performed should detect any general patterns of degradation that may occur in the areas covered, providing reasonable assurance of the continued structural integrity of the subject welds. UT examinations were conducted using ASME Code, Section V, Article 4, techniques and included 0-degree longitudinal, and 45-and 60- degree shear waves from the vessel side. The examination volumes included the weld and base materials near the inside surface of the weld joint, which are typically the highest regions of stress, and where the expected degradation sources would be manifested should they occur. Manual scanning was used for these examinations. The configuration of the nozzle to shell weld limits the effective examination of the required examination volume. The nozzle's close proximity to the weld limits scanning due to the nozzle bend radius causing lift-off of the search unit during scanning. No recordable indications were identified during these examinations. The physical configuration of each nozzle limits the effectiveness of alternative or advanced technologies from increasing the examination coverage for this configuration. Enclosures A1-1 and A1-2 include the complete Ultrasonic Examination Data Reports for each Category 8-0, Item 83.110, examination included in this relief request. Each report includes details of the UT scanning parameters, including transducer size, frequency and angle. Also included are coverage plots for each of the examinations showing the nozzle configuration and percent coverage for each individual scan. The A1-1 and A1-2 Enclosures include search unit details, wave modality, and insonification angles used for all examinations, including the results of each scan. The examinations were performed with 45 degree shear wave, 60 degree shear wave, and 0 degree longitudinal wave search units (as identified in the reports).

l.JT Calibration/Examination Site/Unit: NAPS .I 1 Procedure: ER-AA-NOE-UT-702 Outage No.: N1R23 Summary No.: N1.B3.110.002 Procedure Rev..: 4 Report No.: UT-13.058 Workscope: ISi Page: 1 of

3.

Code: ASME :2004 Ed. Cat.!ltem: Location:. PZR2S1 Drnwing No.: 11715*WMKS*RC*E-2

== Description:== Vessel to Nozzle System ID: RC ~~--~--~-~~~~~---~~~~----~--~~~~--~~~~~~~~~-~~---~--~-~-~~ Component ID: 11715-WMKS-BC-E-2.I 1*RC.-E-:2/11 Size/Length: 2.8" I NIA Thickness/Diameter: 4,3" I NIA Limitations: NONE Start Time: 1600 Finish Time: 1610 Instrument Settings Search Unit Cal. Tl me Date .s~naJNo.: 091639803 Serial No.: M14204SP Checks

Manufacturer:

Panarnetrics Manu facitirer. KBA Initial Gal. 1404. 9/1912013 Mod.el; EPOCH4 Lineari1y; L-13.024

size!

0.75" Model: GAMMA Inter. Cal. 16M 9/191201.3 Oalay:. 1A1o us Range: 4;900" Freq.: 2.2SMHZ Center Freq:: NIA Inter. Cal. 1610 9/19/2013 M'tiCalNet: .2333 in/us Pulser: SQUARE .Exam.Angle: O" Squint Angle: NfA lnter. Cal. NIA Damping: 41)0!1 Reject: 0% Final.Cal. 1705 9/19/2(}13. Measured Angle: NIA Mode: LONG Rep."Raie: AUTO Freq.: 2.0 MHZ Exit Poi~t: NIA

of Elements:

1 Couplant U-3.0 MHZ Filter: Mode: FULLWAVE Ny;-* C.al. Eiatch:. 12J066 CoJifig.-: SINGLE Focus: Voltage: LOW Other: NIA "J:yp~:

Sonotecl\\

Shape: ROUND. Contour: NIA Mfg.: MAGNAFLUX Ax. Gain {dS): 7.fi Gire. Gain (dB): NfA Wedge Style: Integral Exani Batch: 12J066 10 4.9 Depth Search'Unit Cable Type: Sonote<:h .Screen Div." in. of Type: RG-174 Length: 6' No. Conn;: 0

calibration Block.

Mfg,: MAGNAFLUX Scan Coverage Cal. Block N.o. VGS-21 Upstream b?l-Downstreani ~ Scan dB: 1S.o Reference Block Thii::kiiess

4.0" Dia.:

0 Serial No.: 05-556() cw~ CCW2J Scan dB:' 13.0 Cal. Blk,Temp. 70 Temp. Too!: 1066BGCY -- Type: CS.Rompus Block Exam* Surface: OD Comp.Temp *. ~ Temp. Tool: 1066BGCY Surface Condition: Gtoui;d.Smooth R~corc!a tile lnclicatlon{s): Yes No :.1: (If Yes, Ref. Attached Ultrasonic lndica1ion Rep<'irt) Results: NRI ~* 0 ~I 0 GeomO Comments: Percent Of Coverage Obtained,. 90%: Examiner -Level 11*?01 8t.ock, Dean Examiner Level NIA NIA Other Leve.I NIA NIA . UT Ca!ibra.tion/Examii;atkln No Reviewe>d Previous Dl;ita: Signa\\ur~ Yes Date Reviewer 9/19/2013 W.L.7il.;,,._,,,. ~ .Date Date All:lal Orientated Sor<:h Unit Calibr<!ltion Signal Sit;eep Depth R11ector Amplitude% Division 114 THOLE 78% 1.9 .919." 1/2THOLE 80% 3.9 1.916" 314T HOLE 44%" 5.9* 2.910" BACKWALL 100% 6.2 4.000" Cireumfllrential Orhmtated Search Unit' 'Calibration Signal Sweep* Reflector Amplitude% Division Depth N;A Reference/Simulator Block Gain Signal Sweep bepth dB Reflector Amplitude% *Division T.DdB FSDH sro/. 1.5 .702" bate* '7*-;15.13 Date m z (') r 0 en c

o m

)> I..... z,,. -0 (/) c

I

UT Calibration/Examination Site/Unit: NAPS Procedure: ER-AA-NDE*UT-702 Outage No.: 1111R23 Summary No.: N1.B3.1-10.002 Procedure Re'/.: 4 ~eportNo.: UT-13.058 Works cope: ISi Work Order.No.; Page: 2 of 3 Code: ASME 2004 Ed. Cat./ltem: 8-olB.3.110 location: PZR291 Drawtog Ne.!

== Description:== Vessel to Nozzle System ID: RC

~------------------------------~-----------------~

Component ID: 11715-WMKS-RC-E-211-RC*E-2/11 Size/length:" 2.8~ /NIA Thickness/Diameter: 4.3" I NIA Lim itatlops: NONE Start Time: 1611 Finish Time: 1628 inst_rument $ettings Search Unit Cat. Axia_I Orientated Search Unit Time Date Serial No.: 091639803* Serial No.: OOY5K7 Checks Manufacturer. Initial Cal. 9f19f201:i Calibration Signal sweep Dep\\h Panam*emcs

Manufacturer.

KBA 1402 Rellectoi: -Amplitude.% Oivlsioo Model: EPOCH4 linearity: L-13°-024 Size: .* 5" x 1.0" Model: COMP"G lriter.. C.al. 1611. 9/1912013 114 THOLE BO 2.0 .999rt Delay: 1:"16.us Range:* 'J';-100~ Freq.: 2.25MHZ Center Freq.: . N/A. Inter: Cal. 1628 9119/2013 1/iT.HOLE 50 4.0 2.000" M'UCalNe!: .1277 in/us ?ulser: SQUARE ExamArigle: 45" Squint Angle: NIA lnier>Cal. NIA 314THOLE 31 ~;o 3.000" Final Cat 1707 9/1912013 ID.NOTCH 20 8.4 4:300" Damping_:* 4000 Reject: 0% "Measured Angle: 45* Mode:* SHEAR Rep, Rate: AUTO Freq.: 2.0 MHZ Exit Point .7°

-of.Elements:

coupl;mt 514THOLE 1 21 10.0 5.000" Fiit¢r:

8"3.0MHZ Mode: FULLWAVE. Contig::

SINGLE Focus: N;;-** Gal. Batch: 12J066: Ci;eu_mfa~ential Orientated Search Unit Voltage: MM Other: NIA TypJJ: Sonotech Calibration Signal Sweep

Shape:

RECT C,oritour: NIA Mfg;: MAGNAFLUX Reflector AmplitUdeo/. oivislon Depth Ax. Qain*(dB): Wedge.Style: MSWQC NIA . 21.8. Gire. Gain (d8):_ NfA Search Unit Cable Exam Balch:. 1~J066 10 Screen Div.= 5.o* iii. of Depth . Type:* RG 174 Length: 6' No. Conn.: 0 Type: Sonotech Mfg;: MAGNAFLIJX Calibr;ltion B_loi:k Scan Cov1na9'1 Cal. 6toc~ No. VGB~21 Upstream~ Downstream~ Scan dS: 3S:a Reference Block Reference/Simulator Bloc.le Thickness 4,0** Dia.:. (l cw~ ccw~ Scan dB: 35.8 Serial Noc-: 05-5560 Gaii:i . Signal

Sweei:>

bepth dB Reflector Amplitu<!e.% Division Cal. Blk. Temp. 70° Temp. Tool: 1066BG.CY --- Type: CS Rompus Sfock Exam Surface: OD. 21.8 FSDH

45.

1.5 .750" Comp. Temp. ao* Temp.Tool: 1066BGCY Surface Conditioo: Ground Smooth Re~_(>rdabl..a.tndication(s}: Yes O .Nob2)" (If Yes; Ref. Attached Ulttasi;inic Indication Report.} Results: NRI 2J RID Geom O Comments: SEE __ UT REP.OR1;118!i,DATJ::D 09/2f)2004 FOR SC_AN COVERAGES,,.I 4-i+e..ef..mi!n~ l$7*,e:~,yi... *,/. t!PVePAfc. Ii~ At?f-d.""'?d f-ra;,... :Joof fl.r> ~f.d' Percent Of Coverage Obtained-> 90%; Examiner Level ll"PDI .Block; _Dean Examiner Level*. NIA. NIA Other Level: N.IA NIA UT Calibrationlcxamination No Reviewed Previous Dal~: "Signature Signature Yes Date Reviewer 9/19/2013 W.L :If! 0 ;...A i;- Date Date* Dale 7**u *t..:? Date m z (") r 0 en c

o m

)> I...... z )> -u (/) c

i

Weld Number Thickness ENCLOSURE A1-1 11 Serial No. 17-110 Docket No. 50-338 NAPS Unit 1 4th Interval 2nd Period Limited Exams Page 11 of 45 Report.No: UF13~QS8y Summary# N1;B3.UCt002 Pg. 1 of 'l Prepared by:W. Thorpas Date: 9/?5/201~ 2.8 11 4.3". weldWicfrn Weld Length N/A ATTACHMENT! O"OEG COVERAGE .., ~* 4S DEffCOVERAOE. 60 DEG COVERAGE

ENCLOSURE A1-1 Serial No. 17-110 Docket No. 50-338 NAPS Unit 1 4th Interval 2"d Period Limited Exams Page 12 of 45 Report No: UT-13*058 Summary# Nl.83,1.10.002 !'g. 1 of 1 ~ Prepnrcd by:W.. Thomas ??'~ Date: 9/is/2013 Weld Number Thickness 11 4.3" Weld-Width Weld Length 2.8" N/A ATTACHMENT 2 ANGLE ' SCANARfA DIRECTION %COVERAGE 0 WELD AND BASE METAL 0 86.7 45,60 BASE METAL us 92,4 45.160 SASE METAL .DS 58.3 45,60 BASE METAL cw,ccw 86.7 45 WELD us 96.3 45 WELD OS 40 45 WELD CIJ'!.!.:.CCW 100 --*-.~-- 60 WELD us 96.5 60 WELD DS 2.6.7 60 WELD CW;CCW 100 ............. ~.,... -..,. -~-* 783.6 DEVIDED BYlO= 78.36 ExamitMtion Volume Dimensions

Height 4.3" Lel'lgth N/A Width 7~1" ANGLE SEE TABLE Notes:

Coverage Summary Required Scans (each has.a weighing factor oflOOJor c~mplete covel'.~ge) UpSt-Ax upst~circ DnSt*Ax cmst-Clrc ABOVE Cod~ coverage Total. I 7S.36% Best Effort.Coverage (Max 25%) Total I. N/A

1) Code Coverage refers to the maxirrrum percentnge of the required exnminatfon yolume that ls effectively examined with the qualifled examlnatlon_procedure.

2) Best Effort Coverage refers to the requiredellainiriation volume past the weld centerline thatls examined in.the mdal beam direction with anAppendixVlll demonstrated procedure for single sided coverage.

ANf IAriJll £4k. HSB~ Rov/GWGd *. t.~r&.1

UT Calibration/Examination .Site/Unit: 1 Protetltife: Outage No.: N1R24 Stn1mary No.: N1.B3,1j0.* 00.3 Procedure Rev.: 4 Report No.: UT"15-027 ---~-'--- Workscope: ISi Work Orde.r N(:,: Page: 1 of AsME 2004 Ed. Catlitem: Locatiail: PZR291

~

[)escriplion:.NOZZLE*TO*VESSEL Limitations: Sc;mning suiiace.area limited.due tono~!e to.vessel configuratfon. Start Tirne: 1314 Instrument Settings Search Unit .cat. Time . Dafo Seria!No.: 1_4'-0_7'-23_5_0_7_* ------ Sen:.! No.: _____ M_f'-4_21l_4_S_P ____ i--C.. h_e._c_ks_.+----+----i AXjal Orientated Search Unit Calibi"a!i:in Signal s\\*;eep, .sourtd Pilt.fJ Manlifachirec: Olympus Mam,ifactufer: K!?.A lnittan;:aL. 0908 311312015 0.75-.-,-----'-"-G-.-am-m_a_ inier.Gal. 1304

3f:i3fiil15
RerlectPi Amplitude%

Division

*size: ------

Mod.et: _ _..._,__,__ '"1.. ii.. te.. rc_C_a_J..-t. _1_3_1_4.,;-* 3"""'.,-t-3!"""'~-01-.5--t. 1-----'"'."1------+------1-----1

Fr.lq,;

2~25._MHZ CenterFteq.:._. _.N_l_A_._...

I Inter; Ga!.

NIA. Mooe: Longitudinal c .. 1.. oupant. .#' ofE!emelils: _1_* -. Ciil. Batcf:i: t2J066

.- Gonlig.:

Single focus: NIA T. Son<)tecll Sh --R-""d'---Co. nt.o.ur_:' Fl t ype: _______ _ ---~--. '. ap10; ot.m. --,--'a_._. _ Mfg,: MAGr,AFLU~ 1------+-.;......---1------11-----1 Moo el: EPOCH600 linearity: L-15--00S. De!ay: 1.5tl9Jiso Ra11;ie: 5.0ilO M't:CalMH:* o;2:.i2finiµs Purser: Square Dampfr19: sQ'n Reject: 0% Re;i. Rate: 220Hz Freq;: 2;25MHz Filler.. .0:;>:4MHz. Mocte: .F.ul.1. Voltage: 4()() Other; NIA. -----'--- Exam Angte: o~ Squint Angie: Ni!\\ Final Cal. _____ MsasuredAngle: WA

ExifPollit NIA 1710 i/4JSDH 84 1.9 0.915~

1J2TSDH 81 3;*9, 1;921"

3/4 TSOH 46 5.9 i:s:w sackwaff 110 4,.6 4.0.03" Circumferential Orientated Search,Unit*

P\\l!ibration Sigil<!I Sw~ep Sound Path Reflector Ampntude % Division \\";ed\\ie Style: _____ ln_te_g=-r_a_I ___ _ NIA NIA NtA NlA Exam Si:itcfl: 12JO~fi Gire. Gain (dB)'..,..__N_.1'-.A-*. _ Se<!rch Unit.Cab.le Resulis: NRl ~ Examiner

Lcwei G11tica; John: E.

Exam.i.ner'* .Level NIA. Other Lever NIA

UT Calfbratl0nfE:.Caminatkir\\

Revievied Pre\\/cius Data: llcPD! r;<iA NIA Sigr\\alure Yes Date Reviewer 3/131201? y.'J;;.~n.AJ Date.Site Review . crur+. Date

ANll R'<!vievt Reierence/.Simillator Block.

.G8in Signal sw.eep

Sound Path dB Reflector Amfititude% Division 9;3 76 6;0.

3;006 Comme'rlts: Reference UTReporfNo.1185 Dated 0912212004 for scan .i;:ov1m1g~. *.3r<l 1" Back'hall Reflector. m z () r 0 en c

o m

)> I N z )> -0 (/) c

I

UT Calibration/Examination lh:tminfon* SiteJljnit: NAPS Procedure.: ER-AA-~lDE,UT"702 but:,ige NC);! N1R24 Cot.le: o*rawtng No.: ,M System lb: RC ~~~~~~~~~~~~~~~ Sun'in:mfy No.: N1.B3.110.063 Wo*scopti: ISi ASME2064Ed. 1171 S-WMKS-RC-E-2 Cat-.iltem: Procedure* Rev.: .Work Order No.: B,D/B.3.110 Descriplion: NOZZLE-TO-VESSEL 4 Report No.: !.JT-1 s-GZ'f 59102768136 Page; 2 hf 3 Location:-* PZR291 ~-.,-.,~~~~~~~~~.,.-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~- Colli pone n ti D: 1171 S*WMKS-RC*E~ / 1 *RC-E~2112 SizolLen;;th: 2.8l'/NIA Thickness!Diamelei-: 3.29"1s~ Limitations: Scanning sUrf;ilCG ar()a limited due to nozzle: to vessel cpnfigurntion,

start: Time~

1347 Firiish Tim*e: 1530 sarifli No.: lnstiumelit Seltings 140723507 Manufacturer: Olympus Model: EPQCH 600 Linearity: L-15-005 Dela)': 12.652 µs Range: 7.ooo. ~11*u calivel: o~ 12n in/µs. Damping: 4000 R'ep, Rate: 220H:i: Pul!let: Square RejeCi'.~ Freq.:. 2.25 MHz F'iitet: o,54 MHz. Mode: Full Vo!tage:* 40.0 V Other: ~ S!lllrch ui:irt Scri.:il No.; OOV~K7 ca1. Time. Date cheeks Manufacturer: KBA lni!ia!Cal. 0928 3fi:i1201s Site: .5" X 1.0~ Modal:. Comp-G Inter. Cal. 1347 3(13/2015 Inter.Cal, 1402 3/1~12015 t.1tcr;ca1; 1525 3/1312015 Final Cal. 1712 311312015 Freq:: :i;2s MHZ CenterFreq.: NIA WA 45* SquirifAilgle: Exarit Afl;Jfo: Exit.Point 0.7

qf Elements:

1 .--. Col..natch: 12J066 Conf:g.: Sing lea Focus: Nfl\\ * ~.. s t h 1 ype: ono ec S!iape: Rectimgulijr -C:inlo11r:. Flat -_rvirg.: MAG~AfLUX Couplimt MeasurMAngle: 45* Mo9e: Shear Axial Orientated S"eareh Unit Cafibration Signai Sweep soun:J Path Rcfibctcr Amplitude% Divlsic0 1/4T SDH 85 1.9 1,343* 1/2TSDH 56 4;() 2.820" 3i4TSDH 35 6.0 4.215" 514 T SDH 20* i!'i.O T.031" ID t4otoh 14 lij 6.096" Circumferential Orientated Search Unit Cafibratio:ir Signal. Sweep sound Path

Rellector Art1plit1ide %*

Divis for, Wedge StYle: sws F;xam eaicli: . 12J066 I --** - I..,.. I I I Tjipe: Sonotech. Ax. Gain (dEi): 29.8 cfic. c>ai.n (dB):~ .Searcl1 UnifCable Sou11d i>atti ~o* ScteenD~.= M in.of NIA WA. NIA NIA RG 174 Lerl(;-tri: 12' No; Conn.. :.o Mfg:; MAGl\\IAFLUX Calibration Block &:in CovAragr;

T:;pa:

Cai. Block Nq. VGB-21 Upstrei,;rn (0 Povmstream[<!J S.caf! dB: 43.8. Thic~ness ~tO" D(a;: 0 . CW~ CCW0 Scan dB: 43~B Referenco-Blook Serta1N6.:'. os;.ss6o Cai. Btk. Temf.i. n* Temp. Tool: ATK~2. EKlllTI Surface: OD Type: cs. ~oinpus Block Corl\\p: Temp..!.!!__ TOOip. Tciql: ATK*2 . surface corlriiiion:- Ground smooth Reoordable lridfoation(s): No 21 {If Yes, Ref, AUached.Ultresoolc liidieofon Repilrt.} Gain dB 29.ll ReferencelSimul~lor Block Sigi;al *I *S*!l-l!tip Reflector !Amplitude% DMsiof'I I Sound Path SDH I 23 I 1.5 I 1.tMO" Rosi.llt9: NRI 2J* veso RI 0 Gccrn O Comments~ Reference UT Report No.1185* Dated 09/22/2004 fur scan

coverage, f'erce:nt:afGoverage Obfoined ;< 90%:

E'.xiim1ner .Gatica; John E *. Eipiri\\inei NIA Other NIA tevel !I-POI Leyel NIA Level NIA UT Callbrationi'Ex:aminstion No Revie>/1ed Previous. Data: ClJ- ~4:=-r' $igriature Signa:ura Yes Date/ Reviewer 3/1S1201s ti},L;Llt?><'.'IAJ Date Date .~ ae./cf. m z (") r 0 en c

o m

)> I N z )> -u (/) c

J

T

J

<D < ~

0.

-u (1) :::i.o 0 0 (/) 0.. () (1) -u c.@ fil* tll 3...... - ca;:::;: z z (1) (1) 0 0 ~a.. .,.. m c.n...... 0 x ?-;-J --t\\ O> w ~ .,.. 3 (,.)...... c.ncnooo

UT Cafibration/Exarrih1ation Site!Unit tlAPS .Procedure: ER-AA-NriE-UT-702 Outage No,: N 1 R24 ~mmar;No.: Procedure R;w.: Report Nb.: Ul~15-021 Workscope: ISi Work Order ~le>.': 591()2768136 Pag6: 3 of 3 Cope: ASME 2004 Ei:I. Cot.lltom: B-0/03.110 location: PZR:.191 Drawii111 Nii: System ID: RC ------------------------------------------------------------- Go mp ciii eh t ID: 11715-WMKS-RC-E-2 / 1-RC*E~U 12 limitations: Scanning surface area limited due fo nozzle to vessel configuration *. lnstrmrient Settings Search Unit Seda! No.: 140723507 Serial No:: DOY5K6 Men1.1faclurer: Olympus Manufaciu1 er: KBA ~-----~~------- Model; Dciay:: ~P()CH 600 Uni:iarity: ___ L_"t_5_.1)-'0"-5-- Size: .5"X.1.0" 14,9:J4 ps Range: __ 1_0_.0_00__ Freq.: 2.25 MHZ Model: __ c... o...:.i'n-"p"-*-'G-centerFreq*: __ N_l_A_* _ M'il :Cal!Vel: 0-1212 intµs. GxamAhgte: 60" Squjril Angle' NIA Dorn plrig: 400 !'l Cal. checks Initial Cal. Inter, C'.al. lnter.*Ca1. Inter.~!.*

1nalGal.

Size/Length: 2.8" /N/A ThicknesslDlameter:

3.29"rs*

S!artllme: 1317 FiniSh Time: 1346 Timo Data Axial Orientilteci search Unit fo16 371312015

c;;iiibratiori

Signal Sweep Sound Paih

, Reilecfor AmPlittide.o/o Division 1317 3{13/7()15 114T SOH

85.

2.0 2.0'13" 1346 3{13/2015' iI2 T SDH 44 4:0 .t;04$* NIA 314.TSDH 28 G.O 5.991" 1715 3!1312015 5l4TSDH 1s 10:0 10.o:w Rep. R,ale; 220.Hz Purser.. __ s_q_ua_r-'-e-Reject;........ _a... 'll_* __ Freq:: 2;2~ MH:t Measured Artgle: so* h1D<;Je: __ s_h_e'-Jl_r _ E. P '~*

o.r...

11* 'El Cot1p!ant x1t oi.u:

. or - ements::

1 ID Notch 14 r,9 TJl82" FlflGI'.!. i/611.aje: o.5-4MHz 400V Mode:. Full Circumferential Orientated Search Unit -. -- Cal. Batch: 12Jo6s Ccinfig.: Single Focus: NIA ---'-';...;...;.-'-'-- 1------.,,....----...------,..,--~-1 Ca'.ibra110ii Signal*

S\\\\-eep So<il'.l(l Path Olhar'. __

N_IA __ ---. -- Typo~ Sonot:ecft Shape: Recfangular Cootour: Flat Reflector Amplitude o/o Division 3lttTSDf-i' fU:i ---'-"'"-- Mfg.:._* __ M_A_G... N_AF_._L_u... x_~ 1-.,.....,..----1------+-----+----..i Wedg1fStyte: sws 1~ S;OOO;' 5t4TSOH' 34 10.0 10.062" Circ, Galn(tiB}: __ N_l_A....

_

l:J<am Ba~ch: __ 1_2.._J... 00_6 __ Type: sonotech ._ _ _..;..__,..__-+-------1--...;..;.;..;..._!--'-"-'-:.='---1 Mfg.: __ M_A.:..~_N_AF_* _LU_X..__~ 1-------'-----~----"------1 Scareh Unit <faole in. of __ So_* _u_n_d_P_a_*u_1 __ Ty!)e: RG 174 Let!fJUI: fa No.Comi;: (l 11} *s:craeri Div. = calibration Block Scan CoV?rage Cal.. ; Biock N. o:. VGB-21 u* ""',.,,;.., *- t ........

s*
ds**

1 g*

...;;.....;...;.;..;... ______. pstrearnl"!!: .vvwusreai:n;~

can_

. S; Thickhess Ito" Dia:: ____

o_*: ___ CWRJ CCV/~ Scan ciB: 51,!l Cal. ~!k:;Temp. 11* Temp. Too!: ___ A_:r... K_-_z_. __ E;i.:amSurfacc: . oo Reference Bloclt .Reference/Simula.tor :Bfock Serial No.: 05-5500 Gsij'i Sfgnal

sweeo :sound Paih dB Reflector Ampi;ttide% Ofvikion Type:

cs Rol)1pus Blo¢k 37;9' FSDH 20 1.5. i.4ar Com.P.* Te.m. ".. t6~ T. em"'. Tool: ___ -..A""':rK... *_2-'---- ~

Surface.Conditi.on:

Gfotind siriootn. Rec;ordable ltidlcat!ori{s}: Yesu RI No ~ (If.Yoo, Fief Attached Ult.resonb indfoatbn Report.) Resdlls: NRI.IY'J Exam1ner Leve! eatica, J.oh*1. E. E!(atr1iner Lsvel N/Jl. Other Level NIA U'T Calibration/Eiiamlnailon ll~Dl NiA NIA G_~om O

NO

.RCV!e:Ned. Previou;;. Dale.: L~ .*

Signature

.. *--r-Signatur,e Yes Date 311~/;!0{5 Gommerils:

Reference UT Report No.1185 Dated 09/2*if2oo4 for scan

~ol(Gra,ge_ ~Reflectors utilized for socondary DA~ C~bnstruction at 46.6dB. Search t1nitoriented aXialty,. m z (') r 0 en c Al m ~ z > ll (/) c

J

I

UTRNOIRECTAG!

'""*'1185 I 5646 I ~ ta1Nol Weld Width 118 I 2.8 ENCLOSURE A1-2 Serial No. 17-110 Docket No. 50-338 NAPS Unit 1 4th Interval 2nd Period Limited Exams Page 16 of45 Drawing l 1171S*WMI{S:RC]f2 I I.EXaniAngle I I '0 I Domimon UTPartial Record. Line:. .I Marklweid 'l*RCB-2 . I IZ SULtingtb I .SQ'Widtli: I N\\A I N\\A I Area Not Exaniined SEB DRAWING B.Elt:.QW l l

Procedure 1.. R~v I

NDE-UMC)3 I*

3.' SUNlise I Percent N\\A I. 7~% DUE TO NOZZLBTO PRFSSURIZER CONFIGURATION CommentS . SCANNE[)ON,PRESS~ ONLY. SEE.l'ERCENT VOLUME.BY.SCANiilRF.CI'ION ;\\TIACIMENT j ci-C>Ss &iction Sketch. I Sf:\\t:: t:_-c'( Ri?\\...,,._~ tJD:i.~'6,. !\\ I

1 I

I J I.. I I <-t- \\.;.;~c..~.s-~. ""~:-...-..-----~...i.:--..-..,.....,.-t-~.~....,~rrr 1 rr11 \\ \\ \\. y: I\\ Evaluation I /- / ./' . 1; .\\ It* r

- r I

' f r

~ **' I Due to lhe Pressurizer to noizle* weld configuration 100% of the reqUired e1t11m*~lume was. un?hle tobe'achfoved. The weld*

was examined to the maximum e;tent posidble us!tig the o; 45,..aml 6() ~cl,. unit$. No iUrther examinations are n:quired. .__,....-___,..,....-,....-......_,....-~&-~*~s~*__._.,t**.~.,....-.-*,....-,....-,....-,....-,....-_,.-~lLe_.ve1_*~1_.....~n~A~TE--,--___,E Ml. ll' 09tl8l2004 . -ANIJ: 4z;jt bate...Lel

lnltlafd Flnal'I:'!

Hss-c'r

ENCLOSURE A1-2 Serial No.17-110 Docket No. 50-338 NAPS Unit 1 4th Interval 2"d Period Limited Exams Page 17 of45 1

Dominion
m Partial Record' UTRNO!RECTAGj Drawing I

Line J Mark/weld. ' *. 1185 I s646* J 11715~WMI{S-RCJ:.2 I 1-Rq.E,i I J2: "talNqj Weld Width I Exam*Augle.I SU-Length,. I .SUWidtlt **r 60 *1 2.8 I 45 I 1.4 l L6 I

sEEDRAWJNQBELO\\\\'

Reason DUB TO NOZZLE TO PRESSURIZER CONFIGURATION. S~ ONPRF$SllRIZER. ONLy:SEBPERCENTVOUJMEBY SCANDIRFCTION AITACHMENT I I (:rim Section Sketch ~AFS"lf .Q_e.L~f:.~ NO'f..~~ t\\ I.

1 ;

.1 l ~valuation I ~.edllrC I Rev I NDE-ur.703* I 3 SU Nose. I Percent 0.7 I. . Due to the Pi"essurizerto nozzle weld c;onfiguration j 00%. ofthe required*exlµli vo.Iume was unable: Jo. be acliic:ved. The weld was examined to the maxiinum extent * * 'ible usihg the 0, 4$, and 6o:search unitS;. No further. eiearilinations are

liired.
1.

~lute* . I Le:vel I ])A':J.'F:. IW\\{~/ ll WlsmM I I I

ENCLOSURE A1-2 Dominion Serial No. 17-110 Docket No. 50-338 NAPS Unit 1 4th Interval 2nd Period Limited Exams Page 18 of45 1 *. UT Partial Record. tJTRNOIRECTAGI J)rawlng I Line l Mark/weld. "'\\'1185 I 5646 I 1171S-W¥1<8-RC&2 1

1-ll.C-&2

. I 12 DIINol WeldWi!lth I EXam.Angle. 1 SU Length I SU Width* I 59 I ts I 60 I 1.5 I 1.6

1 Area ll{<!t Examined SEE.DRAWING B&.OW

.Reason DUETONOZZLETO PRESSURJZeRCONFIG~TlON. C<!inmes:tts SCANNED ON PRESSURIZER ONLY. SEE PERCENT VOUJME BY SCAN'DIRECTION ATIACHMENT I I Closs Section Sketch.. ~~t'B"N ~\\j<~ t-).J'2.'2-'.¢

Evaluation I*

Proce(iure I R~v I NPIWI'-703 y 3* SU Nase I Pereent* 0.7 I 78% Due to the Pressurizer to*n<>Zzle weld, <,X>nfiguratio11 l ()()% 9f tb.e requir¢d.~ vOlume ~

Upable t:O be achieved., TJi.e \\wld was. examined to tb_e maximum extent ssible usin tbe.O. 4$; and 60 search uri.its. No*furthet examinations.are r<iquired.

I ievel I l'JATE

n 0011sf2004 Lev~I~*.Date: ?-.JJ~~:r/

.. I

ENCLOSURE A1-2 Serial No. 17-110 Docket No. 50-338 NAPS Unit 1 4th Interval 2nd Period Limited Exams Page 19 of45 PERCENTVOLUMEBY:StitNDIRECTION /)RA WING NUMBER 11715-WMKS-RC-E.;2. ANGLE

SCANAREA WELD.AND BASE.METAL 45&60.

. *BASE METAL.*.. 45&60 BASE METAL .45~60 BASEMETAL.. . WELD 45 ,... c****WELD 45 WELD 60 WELD 60 WELD 60". ... WELD COMMENTS: MAR~ NUMBER Jl__ DIRECTION 0 2. 7&8 2 5 7&8 5 7&8 TOT4L_P:E1J.CENT 78.36'/ SCAN.% 86.7 92.4 . 58.3 86.7 96.3

40;0

100, 96.5 26.7 100 DA,TE ANll -~- Date._&~.¥ Initial a

.Final * .t-:ise~cf.

Serial No. 17-110 Docket No. 50-338 NAPS Unit 1 4th Interval 2nd Period Limited Exams Page 20 of45 R1. Risk-Informed Piping Welds Subject to Thermal Fatigue Weld 2 13 14 4.R1 IMPRACTICALITY OF COMPLIANCE In accordance with 1 OCFR50.55a(g)(5)(iii), relief is requested from the "essentially 100 percent" volumetric examination coverage requirement for the piping welds identified below. This requirement is considered impractical primarily due to single-sided access and configuration of these components. Scan Coverage Line# Enclosure Exam Not<> 1 Exam Date Page Angle Mode Frequency 6"-RC-18 50% R1-1 Dwn/CW/CCW 9/17/2013 23 45° Shear 2.25MHZ -+:.1:!~ l?s. __ P'!Y.Q{g'tt,!99-'N. .... ___ ?:L..... §Q~-- *---~~e._a~...*. ?.:?.§Mf:!Z _ Dwn 25 60° Lonqitudlnal 2.0MHZ 6"-RC-19 50% R1-2 Dwn/CW/CCW 9/17/2013 28 45° Shear 2.25MHZ + 13% BE Dwn/CW/CCW 29 60° Shear 2.25MHZ ,..,...... "'IN'""'""~"-'"'"'"~'"'"'"~"..,."""""""'""'""'-"'"'_..._.. -~** 0 ""'"",.'"'""""""' ""'""""'"""-~"' '""""~""'"~"°'" _.-.. ~-'"°"0""'0W'"'~H' -*--~-***-*" ****

- - - -.*-**~,-*******'

-*~--*-*"-""'"'~""~"""*" """-"""-"<<""'""'~'""-'"~* Up 30 60°L Lonoitudlnal 2.0MHZ 6"-RC-19 50% R1-3........ lJ.P!9\\f'JJgg't{_.... . 9ffU?Q1.3. ******* 33 45° ?h.e!lr.. 2.25MHZ ...... + ~%J~_r:;.. *--* __ LJJ>./gvy199vf. 34 60° . ~.E!!l.r..... _?,2§fy!H?'. Dwn 35 60°L Lonoitudlnal 2.0MHZ ~11'!~1.............. 3."~CH~1.............................. ?!!.%....... R1-4....... LJ.Plf?v.Jrlf9'!J!99'tt, ~/1~/?Q1}.. 40 45° Shear 2.25MHZ + 1.? 01~.~E . lJ.P.lr:J.v.J.11(C..'tt,/C..9.W... 41 ...... ~9~.. -. §hear ___ ..... ?... 25MHZ .......................................................... lJ.P.!Pv.111... 42 70° Shear 2.25MHZ Up/Own 43 60°L Lonqitudinal 2.0MHZ i ..."""...,, '"""'"""'............,.. _J.. .... *~*1-**--**-. "'. " "........... _..............,... _._.

- ~-*.... -...........,...... """"'""""""""""""..................,....... _._..,.,...

....... NO~.~: JgP.................................. j~i!ll!lC:!lQ()l1~~"!.llP.!l!r.l:l!l!!l!l!~E!()f.~t:!l~********* j

..................... i.

Dwn.. ___............. j~!!l! ~C:!ll1.911 ~~l:l-~P.".1'11~tr.l:l!l!}l!l!~El..Qf.v.J.El!~L.....J.....

cw

!Circumferential scan in the clock-wise direction

- - - - TCcw

!Circumferential scan in the counterciock:wisedirection -:**********-***--*************i*******-*****-***-*******-*******--**************-************+******-*--**-**--**---- The above examinations were performed manually using advanced ASME Section XI, Appendix VIII demonstrated procedures and techniques in accordance with the performance demonstration requirements. Based on the access and physical limitations of these welds, alternative or other advanced technologies would not have provided complete coverage of the examination volume at the time of these examinations. Enclosures R1-1 through R1-4 include the complete Ultrasonic Examination Data Records for each Category R-A, Item R1.11, examination included in this relief request. Each report includes details of the UT scanning apparatus, including transducer size, fr:_equency, angle, wave modality and insonification angles. Also included are scan plots for each of the examinations showing the piping configuration and percent coverage for each individual scan. The only indication identified during these examinations was counter bore geometry seen 360° intermittently and verified by higher angles and the plot for weld 14. No other recordable indications were identified during any of these examinations. Weld 2 (6"-RC-18), Reactor Coolant System Class 1, was a single-sided examination (50% coverage) due to the valve-to-pipe configuration, limiting upstream scans. The weld is at the check valve from the Low Head Safety Injection system into the Reactor Coolant system hot leg (29"-RC-4). An additional "Best Effort" (non-Code) scan with a 60 degree Longitudinal search unit obtained an additional 1. 7% total coverage of the upstream side of the weld. Line# 6"-RC-18 is 1,500 lb., Type 316 seamless stainless steel piping. Weld 2 is constructed with welding filler metal SFA 5.4 E316L-16, SFA 5.9

Serial No. 17-110 Docket No. 50-338 NAPS Unit 1 41h Interval 2nd Period Limited Exams Page 21of45 ER316L, and/or SFA 5.30 IN316L procured with 8-20 FN delta ferrite and 75ksi minimum tensile strength. Weld 2 is also managed as part of the augmented thermal fatigue examination requirements of MRP-146 like other welds with similar configurations. Weld 13 (6"-RC-19), Reactor Coolant System Class 1, was a single-sided examination (50% coverage) due to the valve-to-pipe configuration, limiting upstream scans. The weld is at the check valve from the Low Head Safety Injection system into the Reactor Coolant system cold leg (27 1/2"-RC-6). An additional "Best Effort" (non-Code) scan with a 60 degree Longitudinal search unit obtained 13% additional total coverage of the upstream side of the weld. Line# 6"-RC-19 is 1,500 lb., Type 316 seamless stainless steel piping. Weld 13 is constructed with welding filler metal SFA 5.4 E316L-16, SFA 5.9 ER316L, and or SFA 5.30 IN316L procured with 8-20 FN delta ferrite and 75ksi minimum tensile strength. Weld 13 is also managed as part of the augmented thermal fatigue examination requirements of MRP-146 like other welds with similar configurations. Weld 14 (6"-RC-19), Reactor Coolant System Class 1, was a single-sided examination (50% coverage) due to the elbow-to-branch configuration, limiting downstream scans. The weld is at the weldolet from the Low Head Safety Injection system into the Reactor Coolant system cold leg (27 1/2"-RC-6). An additional "Best Effort" (non-Code) scan with a 60 degree Longitudinal search unit obtained 9% additional total coverage of the downstream side of the weld. Line# 6"-RC-19 is 1,500 lb., Type 316 seamless stainless steel piping. Weld 14 is constructed with welding filler metal SFA5.4 E316L-16, SFA 5.9 ER316L, and or SFA 5.30 IN316L procured with 8-20 FN delta ferrite and 75ksi minimum tensile strength. Weld 14 is also managed as part of the augmented thermal fatigue examination requirements of MRP-146 like other welds with similar configurations. Weld SW-1 (3"-CH-1), Charging System Class 1, was a limited examination (88% coverage) due a welded ID tag and the intrados of the elbow (elbow-to-pipe configuration), limiting upstream and downstream scans. The weld is at the elbow of the Charging line from the Regenerative Heat Exchanger into the Reactor Coolant system cold leg (27 1/2"-RC-6). An additional "Best Effort" (non-Code) scan with a 60 degree Longitudinal search unit obtained 12% additional total coverage of the upstream and downstream sides of the weld. Line# 3"-CH-1 is 1,500 lb., Type 316 seamless stainless steel piping. Weld SW-1 is constructed with welding filler metal SFA 5.4 E316L-16, SFA 5.9 ER316L, and or SFA 5.30 IN316L procured with 8-20 FN delta ferrite and 75ksi minimum tensile strength. The North Anna Unit 1 RI-ISi Program is based on ASME Code Case N-716 as identified in approved request N1-14-Rl-001 (Reference 7). The subject limitations have been evaluated as acceptable, with no impact on risk analysis, and no further actions necessary to provide reasonable assurance of pressure boundary leak tightness. The subject welds are included in the Class 1 pressure boundary, receiving visual examinations at the beginning of each refueling outage as part of the Boric Acid Corrosion Control Program and VT-2 visual examinations at the end of the refueling outage after operating pressure and temperature is achieved before unit startup. Weld examinations for welds 2, 13, and 14 were single-sided, but additional non-Code coverage was obtained (Best Effort Coverage) on ttie critical inside surface volume of both the weld and heat-affected area. These additional measures provide reasonable assurance that these welds are structurally sound. The subject welds were selected as part of an examination program that includes selections from different piping

Serial No. 17-110 Docket No. 50-338 NAPS Unit 1 4th Interval 2nd Period Limited Exams Page 22 of 45 configurations, as well as selections from piping configurations categorized with different degradation mechanisms. 5.R1 BURDEN CAUSED BY COMPLIANCE The physical configuration of these welds, valve-to-pipe, elbow-to-branch, and a welded tag at an elbow, confines inspection capabilities. Detailed sketches of the limitations and inspection areas achieved have been provided. No further action can be taken to enable better examination coverage without destroying the component. 6.R1 PROPOSED ALTERNATIVE AND BASIS These welds were selected as they are determined to be of High Safety Significance with possible active degradation mechanisms. Selections were made based on plant specific operating experience or history of examination, weld repairs, random selection across different pipe sizes and configurations, and radiation concerns. These welds were selected, in part, because a previous Section XI examination history exists. Comparison of examination results over time is critical to detect service induced degradation. Inspection of these particular welds are considered the best choice for meaningful examination results. It is proposed that the examinations already completed at the reduced coverage be accepted for meeting the Code requirements. 100% of the pipe-to-valve welds were volumetrically examined from one side. No indications were discovered. The limited volumetric examinations performed should detect any general patterns of degradation that may occur in the areas covered, therefore providing reasonable assurance of the continued structural integrity of the subject weld. In addition, these welds receive a visual examination during the system leakage test performed at the end of each refueling outage. As a result of the completed examinations, any pattern of degradation should be detected, thereby providing reasonable assurance of operational readiness. The purpose of the inservice inspection program is to assure the structural and pressure-retaining integrity of safety-related nuclear power plant components in accordance with the rules of the ASME Section XI Code and the requirements of 10 CFR 50.55a. Although Dominion could select only weld locations where greater than 90% examination coverage is possible (when available based on selection criteria), meeting the purpose of the Code requires selecting a mix of not only piping-to-piping welds (where essentially 100% coverage is more likely), but also piping-to-valve welds, piping-to-pump welds, piping-to-vessel welds, socket welds, nozzle-to-pipe welds, etc. The ASME Code allows only 50% Code coverage for single-sided examinations. In cases other than most piping-to-piping welds the majority of weld examinations are considered single-sided examinations. The risk-informed weld limitations are considered in ASME Code Case N-716 periodic updates to the Risk-Informed Program Plan, where the program is reevaluated to determine if any changes to the examination selections need to be made, including additional examinations if they are warranted. The limited examinations identified in this request have no impact on the change-in-risk evaluation for the second period, and no new examinations were added as a result of these limitations.

UT Calibration/Examination Site/Unit: NAPS Procedure: ER*AA-N DE-UT:Sil2 Outage.No.: N1R23 Summary No.: N1.R1.11.004 Procedure Rev.: 2 RE/Port No.: UT-13.Q53

~

Workscope; ISi Work Order No.: 59102617557 Page: of 5 Code: 2004. Edition Cat./ttem; R~NRf.11 Location: Bloop Drawing No;: 11715-WMKS-0103AF Descriptfon: Valve to Elbow SyStem JD: RC

~---~-----------------------------~-----

Component ID: '11T15-WMKS:0103AFI 6*RC*11H 2 Size/length: U0" 12t.O" Thickness/Diameter:: 0.719" 16.0" Limitations:. Single sided exam due to valve (1-51-95} fo elbow c*onfiguration. Siart['ime: 1620 Finish Time: 1632 lnstrorile_nt Settings Search Unit Cal. Time Date Serial No.: 091639803 Serial No.: 01CLN1 Ch.eeks Manufacturer:. . Panarnetrics Manufacturer: KBI\\ .Initial 9al. 1442 9/1712013 Model: EPOCH4 Linearity: L*13.0t4 Size: 0.375" Model: Corrip-0 inter.cat 1620 911.7f201.J Delay: 5.116µ$ Range: 2.00"* Freq.; 2.2SMHZ Center Freq.: NIA lnier. cat NIA M'tlCa!Nel: 0:123iiinlµs Pulser: Square* Exam*Ang!e: Squint Angle: NIA Inter. Cal. N/A 45° Damping: 4000 Reject: o~ Final Cal. 1'759 9[17/2013 Measured Angle: 45.* Mode; Shear Rep. Rate: Auto Freq.: 2.0 MHz CoJ.lplant Exit point 0.2" l;!of Elements: 1 o.a.3,0. Mode:: Full:aave -- Cal. Batch: Filler: Single Focus: 12J06l> Voifoge:. Max Config.:. NIA Other: NIA Type: Son<:>tech Shape: Rqi,i;;c:f C9ntdur:

N!A MAGNAFLUX

. lv!fg.: Wedge Style: MSWQC Ax. C,;ain (dB): 7.0 . Circ. Gain (dB): NIA

EX<lm Batch:

12J066 Sound Path Search Unlt.Cabre 10 Screen.Div;.. 2.0

1n.*of No. Conn.:

Type: Sonotech Type: RG 174 Length; 6' 0 -- Mfg;: MAGNAFLUX

Calibration Block Scan Coverage Cal..Block No *. **

05-8514 UpstreamO Downstream*RJ. Scan dB: 25.0 R:eference Block Thickness 2.25"' Dia~:

o.

Se!iafNo.: 'OS-6534 CW2) ccw:;a Sean dB.:* 25.o Cal: BJk, Temp. 73* JemP: Tool:* 1073B~CY -- Ti'Pe:. $5 Rompus.Block Exam.Surface: OD Comp. Temp,...!!... J'emp. Tool:. 1073BGCY Surface Condition:: Ground Recordable lndicaU!>n s): Yes N.o (If Yes,.Ref. Atta¢lied Ultrasonic lndicatlori Report.) Results: ( .NRl_[;O D R.l'O <3.eom D Comments: None Percent Of Coverage-Ob!!Jined >- 9-0%: Examiner Le~I

n"PDI Kifpela, Jamie E.*

Examiner: Le11el .Zollner, Brian D Other NJA Level NJA UT Calibration!Examination Reviilil1ed Previous Data: Yes ~eviewer Axial Orientated Search Unit. Calibration Sig[1al Sweep Reflector* Amplitude% Division Sound Path 1.0" Notch 80 7.0 1.393" Circumf,erential Orientated SearchUnlt .Calibration .Signal . Sl'(eep Sound Path Reflector Amplitude%,. Diiiislon NIA: Reference/Simulator Block. Gain Signal Sweep $0J,1nd Pat~ dB Reflector Amplitude% Division 1:0 FSDH 20 5.2 1.028" m z () r 0 en c

o m: o z

)> -0 en c

i

UT Calibration/Examin~tion Site/Unit: NAPS 1 Procedure:. ER*AAcNDE-UT-81!2 Out~geNo:: N.1R23 Summary No.: N1.R1.11.004. Procedure Re.v.:* 2 Report No.: UT*13..(J53

~----------~

Workscope: ISi WorkOrderNe,: 59102617557 Page: 2 of

5.

Code: 2004 E ditil~n CatJlte1r.: R-A/Rt.11 Lcx:ation: Bloop Drawing.No.: 11715*WMKS..0103AF

== Description:== Valve to Elbow System ID: RC -'-------------------------------~----~---------------------~ Component ID: 11715-WMKS-0103AF Hl-RC-18/ 2 Limitations: Single sided exam due to valve (1*Sl-95) to elbow configuration. Instrument Settings Search Unit Serial No.: 091639803 serial r~o.: Sl0328 Man ufacli.J ref: Pana metrics Manufacturer: GE Model: EPOCH4 linearity: L*13-024 Size: .375" Model: MSWQC Delay: 6.821 µs Range: 2.llO" Freq,::.2:.25MHZ Center Freq.. : WA M*t1ca1Ne1; 0.1230 in/ps Pulser: Sq11are Exam Angle: eo* Squint Angle: NIA. Damping: 4000 R(iject: 0% Measured Angle: 60" Mode: Shear Rep~ Rate; Auto Freq.: 2.o MHz E:Xit Pdnl 0.25"

1. of Elemenis:

1 Cal. Checks Initial Cal. Inter. Cal. Inter. C:al. Inter. Cal. Final Cal. Size/Length: uon1 21.0~

Start Time:.

1632 Thickness/Diameter. 0.719" I 5.0" Finish Time: 1640 Time Date AXial Orientated Search Unit Calibration Signal sweep 1443 s'/1712013 Reflector Amplitude% Division Sound Pat~ 1632 9(17/2013 1.0" Note.h 80 6.3 1.S18" NIA NIA 1800 911712013 Couplant Fl!tei': o.s~a.o Mode: Fullwave. Config,:* Si.ogle fbCl!S: NU:- Cat Batch: 12J066 Circumferential Orientated S.eai'ch Unit Voltage: Maic Other. NIA Shape: Type: Sonotech Calibration Signal Sweep Sound'Path Round Contqur: NfA. Mf!;j.: MAGNAfl..UX: Re!leetor Amplitude% Division VVedge StYfe: MSW QC NIA* Ax. Gain (dB): 21.5 Gire~ Gain {dB): NIA Search Unit Cable Exam :Batch; 12JQ61) 10: screen Dlv, = '2.. 9 in. of Sound.Path . ~ype:, RG 174 Length: No. Conn;: il Type: si>riatech 6' Mf<J:: MAGNAfLUX Calibration *siock Scan' Coverage Cal. Block No. 05-8514 Up-stream D.Downstream0 Scan dB: 33.5 Reference Block Reference!Simu!ator Block Thickness .2~25~ Dia;: 0 cw~ CCW0 Scanoe: -- *serial No.: Gairi Signal Sweep Soi:mdPath. 33.5 05*6534 dB Reflect6r Ainplitudeo/o Division Cal. Sik. Temp *...!!. T!fmp: Ta.01: .1073BGCY Exam Surface: OD Type: SS Rornpus Block 21.5 FSDH 60 s:1 1.466~ comp. Temp: ta*. temp:Tool: 1073BGCY Surface-ecndition:

Ground Recordable ln.dicat.ion(s);.

Yeso No E2J (If Yes.Ref. Attached Uitrasonic lndit:$tion Report.) Results: NRI ~ RID Percef'll Of Coverage Obiained >c90¥o: Ei<amirier level Kilpela, Jamie E. Examiner Level Zollner, Brfan D Qther Le'.vel NIA NfA UT.Cafibration/Examiriatioil Geom !1 No ~o:iviewed Previous Data: Yes Date 9/1712013 Date r 911712013 Comments: Effective cover:ageu~ing the 60° search unit has been verified.bY the.presence:afthe.weld roof response duril)!J.th!; reqt.iired i;c;ms. Date Date m z (") r 0 CJ) c

o m o I......

z )> '1J Ul c ~

UT Calibration/Examine tion .. SiteiUnit !lAPS 1 Procedure: ER:M*NDE~T "802. OulageNo.: N1R23 ,..-----...-------...----...----~ I.* ___ Sommaiy.No.: N1cR1:11*.004 Procedure.Rev.: 1-----'-----;------- Workscope:.

lSl.

WorkOrder.No.: .2 RepQrfNo.: UT~13-053 59102617~57 Page: 3 of 5 Co.de: 2004 EdltlOn CaLJltem: location: Blo9p Drawir)g No.; '11l15*WMKS-0103AF Desalption: Valve to E;lbow system io: RC _........,...... -.,.-~;.,,;--...--~--~--~...--~--.,--...---..,..------...-...,.....,--,,...,...;.....-...-.,.-...-...-...-...-...-...--...-- Compo n e ri t lD: 1171~MKS--01DWLScRC*18.f2 SizeJi..ength: 1.20"'/ 21*.0".

L~mitati~;

1606 Flnish. Time: "1620 Axial Orientated Search u~t Date Instrument settings,

searC#l.. Uni~

C 1 *. Time* Serial Np.: 091639803 Serial No.: 22K3-10001 Chi cks. *

.,------c-

..,-------'----...--,....,....... ----.....------""'"'i Calibration Signal Sweep Manufacfurer:; ----""""'"'* f';..;.a_n....,am...,....e-tri_*cs-. ---- Ma11tifactLifer. _____._s-i.... Q_ma_..-"...---- lnitla caJ. ** 145.4 911712013-Reflector Amplitude%.. Diyisiol') Sound Path Model: EPOCH4. Lineai:ity: . L~13-:024.. Size: 2(18x10) Mod~t:

so:.U inter Cai:

~601) 9/'t7/201:J. l--1-,0-.:"-.S-0-H-.-f--'-8-0--1---"S"'-j).....;;.;.-+-.* 2-.o-2-o-~*-f inter Cat Ni.A Dela)r. M'tl Call'J:el:..2382.Tn/µ5 DilinpillfJ:: 4000. Rep. Raia: Fil.tar: -{).8'-3,0.. vci1tage: Uiax.. Range<._,.._z._sa_*_*_;. _ Pptser:*.... s_qua,..**-**.,..re__.. 'RejeCt; *---'-_o*_Yo._;* _ freq~:*. 20 MHZ*

Mode:

.Fullwave. Freq.: 2,0. M~

Cenjer Fre*q.;

'NIA . :inter caL 'NIA q>uplarit* atch: . 12JOO$.. l::Xas:n f\\ngle: ~ SquiiitAngle:. _NIA:..Fina Cat 1802 l':-feasuroo Angle: 60° Mode; Longitudinal c:-""'t P"'"';. 0.*5" ..; Of Ei

2.

wu ei:neots.: _*-*:caL Conf!9_c: o-Sss Foqus: Fo.0*:1s-> other. WA Ty~

sonotei:h Cahiiration *

s19ra1 SollndPalh

... __.....__ Shape:. ~etangula~ Gontotir: ~.:7:.5'.' Mtg: --_-MA:_G_NAFL ____ '.-0-x:-* -- Reilector Amplitud~ re Wet1911.st~: 1ntegra1 1---.-N-tA------.,,.......---t------T------f Clrc.,Gaili (dB): .. WA. Seareh\\JtiltCable

- e:>;an Batch: __

1_:u_o....,.6._f>. __ 10 s 2 53 in. of SOima.Path TY.Pe Sonotech ~--"'--'"--+------1-----+-----t . tf~n OiV.): Type: RG 174 Length:* 6' Nq *. Conn;:.0. MF --MA-. -G-N~Afl.:...--..U-X-. --.1-.-.,...----'--lf---'--...--+----1-----1

Calibration Block

-~.-* : ~~/_ltinco.vera_ge#R'_* ~_.st,_/-,.o1*j; g; -......-----~ i---...,-.,..,,,.-,.".__,.,...---_._--.._...._...__~--t-Cal. 'a*1;._i;....... N""'C!*.,.0*1rw A ~ lam~r'":' r Rafe*.. *e~. *.Bloc'k. iei_ere. n. c_e/Slmu13to. rBl.. oc .. k Thi~'""~: 3.067" '"' 7 Upstream~ Downstre~ :scan 9s;. 43*_9 ,.. ~v Signa! Sweep 5

CWQ, C

0 ~dB: WA Seri< No.; NA!i'~7.o*.AX*1; ~~in Reflector Amplitutle%. DiViSion Sour:ufpaih. Cal. Btk. femp. * *. 12*.:temp. Tool:** 1073.eG.CY Exam sUriace:

00 T'Yfle J",OjaRefelk AXScans* 1-3

--~7-*;0 -* +,,0-75-.* 0-H-+-..;..:..-s_o.._-+-5-_~-0 ,-. _-+--_1-.S0...-7:"_._.. Gomp.1'emp. 73* I etrip, T0,9!; 1 D73BGCY.. Surface Condition:. Ground Recordable irnticatiori(s): Yes i:::J. No ~ (if'.Yes. 'Ref. Attached Ultrasonic.!ndication Rep9f'.t.) Resu~, NRI ;¥J RI.[] Geom D Examiner Le)!el. 11'J>01

Kilpefa, jamre e:

Examiner' cZollner; B~ ~ Level UT C3tibratfonlEXamination NIA.

** U *
Slgnaii,ire Yes Date
RevleYier 9/17/2013 ~-.Ji,(;.,..:;,i, Da.te ANtl Re'ii;;V
Coltunentli. !W'.RL Search:unit utilizedfor'best effort.f;lr side exam C1i'ea coverage and interrogation~ Shear: c;ompommt i.n<:ficatiori noted off.c<>Linterbore area Date m

z (") r-0 CJ) c ~ m ~ I.....

ENCLOSURE R1-1 Serial No. 17-11 O Docket No. 50-338 NAPS Unit 1 4th Interval 2nd Period Limited Exams Page 26 of 45 Supplemental Report Summary No.: N1.R1.11.004 ~~---~~~~~~ El<aminer: Kllpe!a, Jamie E; Level: ~ Examiner: Zollne _ _,r,_B_rl_an_o_* -=""""--- Level:-J!:f!!!_ Other: NIA. Level: ~ ."comments: vJti i - / .. w _,J I N.R. ~ - N.R 3 . 7~f' 4- - I 9::.0C(' Additional

Sui:iPlemen:al Data Report No,:

UT*i3~053 FLDw

ENCLOSURE R1-1 Serial No. 17-11 O Docket No. 50-338 NAPS Unit 1 4th Interval 2nd Period Limited Exams Page 27 of45 R.'eport,'~(): u1-.:t~3.-QS3 Summary #.Ni.Rl.ii.004 Pg.5of5 ~/ Pr~pared by:W. Thomas ~~ pate: 9/19/203;.3 Weld Number Thickness 0.809" Weid\\Nidth

i.. zi' Wel~length 21" FLOW 60 VALVE

:+

0.27'1 HT x 1.s* WIPTH = 0.297 sa'iN, '~EqtJ!.RED EXAM Mr:;.t\\ EACH SIDE ~~ EXAMlt-IED 100% OF TflE RE.QUIRED EXAM ARE OS SlDE AX.ANO CIR OIRE'CTJQN: ~*EXAMtNED0;02so;*.tN. Bf;sri=FFORT us SIQE: A)t.;'Dl~ECTION .021 o.'297 = o.os1 x 100 = a.1% H$ :/' ;* l.ISr-** sr1*.~~17'.. ~NO EXAM;;x(AXDIRECTIONFOR 93;3% Examination Volume 0*1merislons

Height 0.270"
. tov~rage S\\jmnial'Y.

ANGLE 45/60 60L

6.7%

c9de Coveragetot~I I so%* ioo+ tOO+o+e;;7=206.7 /4=51. °l°IO

SestEffort.Co.verage {tvtax. 25% ): tot~I
1.*. 1.7%

Notes: i) *Code Coverage refers to the maxlmum,percentageof the.required examination volume, that is effectlveiy.examined*wlth th~H:iualifle<lexamloation procedure.

2).SeSt Effort Cciver~ge refers. to the requirecl exaroination:voiim'if! p~sttfle ~eld centerline tt:iat ls examlned:in theaxl<ilbeain direction With* an Appendii< Viii

~. demonstrated procedure for;srngle sidei:l.coveragf!* ANllANll d/IL RSS~... RevhJ1Ne.d t~~ At.

UT Calibration/Examination Site/Unit:* NAPS 1 Procedure: ER-M-NDE-uT-S02 Out:.ige No.: N1R23 Summary No.: N1.R1.11.015 Procedure Rev.: 2 Report No.: UT*13-051

~

\\Norl<scope: ISi Work Order No.: 59102617557 Page: of 5 Code: 2004 Edition .Cal./ltem: R*NR1.11 location: Bloop Drawing No.: 11715-WMKS-0103Y

== Description:== Valve to Elbow System ID: RC

~-----------------------------------------------------

Component ID: 1t71~CWMKS-0103YI6*RC-19/13 size/Length: 1.0" J 21.0" Thickness/Diameter: 0.. 719 I 6.Cr Limitations: Single sided exam due to valve {1-Sl-86) to elbow configuration StartTfme: 115(1 Finish Time: 1201 Instrument-Settings Searc::h U.nit Cal. Time Date Serial No.: 091639803 Serial No.: 01CLN1 Checks Manufacturer: Pana metrics Manufacturer: KBA lhilial_Cal. 0855 9117/2013 Model: EPOCH4 Linearity: L-13.024 Size: 0.375" Model: Comp-G inter.Cal. 1135 9/17/2013 Delay: 5.116µs Range: 2.00~ Freq.: 2.25MHZ Center Freq.: N/A inter;. Cal. NfA M'tlCaWel:. 0.1230 lruµs Pul$er: Squ;ire Exam Angle: 45* Squint Angle: NIA Inter. Cal: NfA Damping: 4000 Reject; 0% Final Cal. 1442 9{17/2013 Measured Angle: 45* Mode: Shear Rep. Rate: Auto Freq.; 2.0 MHz Couplant Eidt Point 0.2*

of Elements:

1 Filter: 0.8--3.0 Mode: Fullwave N-;;;- Cal.. 6atch: 12J066 Config.: Single Focus: Voltage: Max Other: NIA Type: Sonoteeh Shape: Round Contour: NIA Mfg.: MAGNAFLUX Wedge Style: MSWQC Ax. Gain {dB): 7.0 Circ. Gsin (dB): NIA Exarn Bstch: 12J066 Search Unit Cable 10 $~reen Div. = 2.0 in. of Sound Path Type: Sonotech Type: RG 174 Length: s* No. Conn.: 0 calibration ~lock Mfg.: MAGNAFLUX Scan Coverage Cal. Block No. 05.:S514 UJ)streamO Downstream ~ Sca_ndB: 25.0 Reference Block Thickness. 2.25" Dia.: 0 Serial.No.: 05-6534 cw~ CCW ~ Scan dB:* 25.o Col. Bile, Temp, 73° Temp. Tool: 1073BGCY -- Type: SS *Rompus Block Exam Surface; OD' Comp.Temp~ 77° Temp. Toot: 1073BGCY Surface C9ndition: Ground. Recordable* indication s : Yes No r.; ~ (If Yes, Ref. Attached Ultrasonic Indication Report.} Results: () NRJ ~ D RI 0 Geom O Comments: None Percent OtCoverage Obt<iined > 00%:. Examiner Level Ii-POI Kitpefa; Jamie E. E:XiJminer Level Zollner, Brian 0 Other Level N/A UT Calibration/Examination Reviewed Previous Data: Yes Date Reviewer 9ft7J2013 /)J.L. tJ0,,.., A-<: Date 9/1712013 Date Axi<tl Orientated Search Unit Cafibrauon Signal Svieep ReflectOI' Amplitude% Division. Sound Path 1.0" Notch 60 1.0 1.393" Circumferential Orientate<:! Search Unit Calibration Signal Sweep Reflector Amplitude*% Division Sound Path NIA Reference/Simulator Block Gain Signal Sweep Sound Path .dB Reflector Amplitude% Division 7.0 FSDH 20 s.2

1.028" m

z (") r 0 CJ) c

o m
o

~ z )> 'lJ en c

I

UT Calibration/Examination Site/Unit: NAPS Pr.ocedure: ER-AAcNOE-UT-802 Outag"'. No.: N1R23 Summary No.: N1.R1.11.015 Procedure Rev.: 2 Report No.: UT-13-051 ~-~------------ Works cope: 1s: Work. Order No.: 59102617557 Page: 2 of 5 Code: 2004Editiori CatJltem: R-AJR1.11 Location: Bloop ~-~---~-------------------- Drawing No.: 11715-WMKS.0103Y

== Description:== Valve t0: Elbow System ID: RC

~~-----------------------------------------------------------.....,-

Cc m ponent ID: 11715-WMKS-G103Y J 6-RC-19 / 13 Siz.e/Length: 1.0~ I 21.0~ ThicknesslDiameter:

o. 719" J 6.0" limitations:

Single sided exam due to valve (1-51-Bil) to elbow configuration Start Time: 1234 Finish Time: 1241 Instrument Settings Search Unit Cat Time Date Axial Orientated Search Unit Serial No.: 09163~8(>3 Serial No.: SJ0328 Checks Calibratiori Signal Sweep Manu.facturer: Panametrics Manufacturer. GE Initial Cal. 0858 9/17/2013 Reflector Anip!ituoe % Division Sound Path Model: EPOCH4 Linearity: L-13.024 Size: .375" Model: MSWQC Inter: Cal. 1226 911712013 1.0" Notch 80 6.3 1.818" Delay: 6.821.IJS Range: 2.90" Freq.: 2.25MHZ Center Fre.q.: N/A Inter. Cal. NrA M't!CalNel: 0.1230 in/µs Pulser: Square. Exam Angle: Squint Angle: NIA fnier. Cal. NIA eo. 0 Final Cai. 1443 9/1712013 Damping: 4oon Reject: 0% Measured Angle: 60° Mode: Shear Rep. Rate: Auto freq.: 2.0 MHz Couplant Exit Point 0.25"

of Elements:

1 Filter: 0.8-3.0 Mode: Fullwave ---* Cat: Batch* 12J066 Circumferential Orientated Search Unit Conlig.: Single* Focus: NIA Voltage: Max Other: N/A Shape: Round N/A Type:* Sonotech Calibration Signal Sweep Sound Pa1h Contour: Reflector Amplitude% Division

Mfg.:

MAGNAFLUX i/~edge Style: MSWQC NIA Ax. Gain {dB); 21.5 Circ. Gain (dB): NIA Search Unit Cable

Exam Batch:

12J066 10 ScreE)n.Div;

2.9 in. of Sound _Path Type:

RG 174 Length: 6' No. Conn.: 0 Type: Soriotech Mfg.: MAGNAFL.UX Calibr_ation Block S~ait Coverage Cal.- Block No. 05;.e514 . UpstreamO Downstream~ Scan dB: 33.5 R.efim1rice Block Reference/Simulator Block Gain Signal Sweep Thickness 2.25" Dia.: 0 cw~ ccw~.scandS: 33.S Serial No.: 05-6534 .Sound Path dB Reflector Amplitude% Division Cal. Blk. Temp. 73° Temp. Tool: 1073BGCY --- Type: SS Rompus B)ock Exam Surfacei: OD 21.5 FSOH 60 5.1 1.466d Comp. Temp. 77* Temp. Tool: trl73BGCY Surface Condition: Ground Recordable h;idica!ion(s): Yes O No-~ (If Yes, Ref. Attached l.Jltrasonic lndi~tion Report.) Results: NR! !;;] RID Geom O Comments: Effective coverage using the so* search unit has heen verified by the presence of the weld root rei>ponse during the required scans Percent Of Coverage Obtained> 9.0%: EXam iner Level Kiipela; Jamie E. Exam in er Leve! Zollner, Brian 0 Other NIA Level UT. Calibration/Eicamin;ition ll-PDI NIA . Reviewed Previous Data: Yes Dete 911712013 Date 9117/2013 Date ReviOW-er Date m z () r 0 en c

c m c

~ z )> IJ (/) c ~

UT Calibration/Examination Site/Unit: NAPS Procedure: ER-AA-NDE*UT-802 Outage No.: N1R23 Summary No.: N1.R1.11.015 Procedure Rev.: 2 ReportNo.: UT-13-ll51

~------~

Worksccpe: ISi Work Order No.: 59102617557 Page: 3 Of 5 .code: 2004 Edition Cal.Jltem: R-AIR1.11 Location: Bloop Drawing No.: 11715-WMKS-0103Y

== Description:== Valve to.Elbow System ID: RC

,...-----------~---------------------------------...,..------

Component ID: 11715'WMKS-0103Y / 6*RC~19/13 Size/Length: 1.0" / 21.0" Thickness!Diameter: 0.719.'/ 6.o** Limitations: Single sided exam due to valve (1-Sl*S6) to elbow configuration Start Time: 1540 Finish Time: 1547 lnstrumemt Settings Search Unit Cal. Axial Orientated S.earch Unit Time Date Serial No.: 091639803 Serial No.: 22K3-10001 Checks Calibration Signal Sigma Initial Cal. Sweep Sound Path Manufacturer. Panametrics Manufacturer: 1454 9/17/2013 Reflector Amplitude% Division Model: EPOCH4 Linearity. L-13-0i4 Size: 2(1Bx10) Model: SOA2 Inter.Cal. 1540 9/17/2013 1.0" SDH BO a.o 2.020" Delay: 7.510 µs Range: 2.53" Freq,: 2,0 MHZ Cente(Freq.: NIA Inter. Cal. NIA M'!ICalNel: .2362infµs Pulser: Square Exam Angle: GOL Squint Angle: Inter. Cal. N/A NfA Final Cal. 1802 9117/2013 Damping: 4000 Reject: 0% Measured Angle: so* Mode: Longltudinal Rep.. Rate: Couplant AutQ Freq.:** 2.0 MHz Exit Point o.s*

of Elements:

2 Filter: 0.6-3.0 Mode: Fullwave Config.; -- Cal. Batch: 12J066 Circumferential Orientated Search Unit D-S8S Focus:* FD.0.75" Voltage: Max Other;. NIA Type: Sonotech calibration Signal Sweep Sound Path Shape: Retangular CQrito1,1r: l<AJ.75" Mfg.: MAGNAFLUX Reflector Amf)lltude% Oivision W e<lge Style: Integral NIA Ax. Gain (dB): 37.0 Cffc. Gain (dB): NIA Search Unit C;ible Exam Batch: 12J066 10 Screen Div.*= 2.53 in. of

Sound Path Type:

RG 174 Length: 6' No.. COrin.: 0 Type: Sonotech Mfg.: MAGNAFLUX Caiibralion Block Scan C()verage Ca1.:s1ock No. NAPS-7.041W"4 Upstream~ Downstream*n Scan dB: 43.0 Reference Bloc:k ReferencelSimulator Block Gain Signal Sweep Tnickn~$ 3.067" Dia.: .7* cwo CCWO Scan dB: NIA Serial No.: NAPS-7.0*AX~1 Sound Path dB Reflector Amplitude% DM$ion Cal. Blk. Temp. ~Temp.Tool: 1073SGCY -- Type: 1~ Dia Ref Blk AA $cans E.xam Surface: OD

37.0 075° SDH i.lll 6.0 1.507" Comp. Temp.

.n* Temp; T0;01: 1073B~CY Surface Condition: .Ground Recordable lndicatii:in(s): Yes.o No~ (If Yes, Ref. Attached Ultrasonic Indication Rej)ort.) Results: NRI ~ RI. D Geom O Comments: lWRL search unit utilized for best effort far side exam area coverage and interrogation. Percenfoi.coverage Obtained*> 90%: Examiner Level Kilpel<i,.Jamie E. Exafni11er LeVJ=I Zollner, Brian D Other Level llllA UT Calibra!ioniExaminatlon No Reviewed Previous*Data: Yes. Date Reviewer 911112013 i-J.J..- :-J[j CJ,,,..,.i r Date 9/17/2013 Date m z (') r 0 en c Al m Al ~

ENCLOSURE R1-2 Serial No. 17-110 Docket No. 50-338 NAPS Unit 1 4th Interval 2nd Period Limited Exams Page 31 of 45 Supplemental Report Summary N.o.: f\\11.111.11.015 ~~"""-~~~~~-~~~ Examiner: Kilpcla, Jamie E. Level: ll*PDI Examiner: Zollner, Brian D level: 11-PDI Other: NIA Level: NIA ~~~~~~~~~- Comments: . ww:-/.oo I - JJ.R. ~ -

J.J<.

3 - .779'; '-I - .. 7<j J 0 &'lLt 5-Report No.: ----- UT-13-051 Page; 4 of 5 Reviewer: iJ.L.1I<~s ~* .Site Rev'.ew: /~* ~f:.f* 'tf &4,~ /l.Nll Review: 1-;;;;;;; ~ ~-----._....---~~~~- ELDw "' Date: lt/.Jt:;./3 Dale:~ Date:~* V

E Additional - Supplemunlal Data

ENCLOSURE R1-2 Serial No. 17-110 Docket No. 50-338 NAPS Unit 1 4th Interval 2nd Period Limited Exams Page 32 of 45 Report No:.tff'*13-0$1

summary #:N1J{1.11.01s.

Pg.

5.

of 5

Prepared by:.w. Thomas Date: 9/19/2013*

Weld Number Thickness 13 o.191" Weld Width Welq Length 1" 21" .1 FLOW 'VALVE El .264" HT X1"WIDTH =.264 SQ. IN. REQUIRED EXAM VOLUME EACH SIDE ., EXAMINED 100% ~THE REQUl~ED EXAM AREA OS SIDE (,,; EXAMINED O. 14 SO. IN.. US SIDE BEST EFFORT

- - - - '****'****'*.*--*'***'"**.141.264"o.s3x100" 5.1% riesr EFFORT us sloe Ax DIRECTICx\\l

~p'w NO EXAM FOR 4'73 oF THE REQUIRE.b EXA,t.1 AREA USS IQE AX OIRf-CTIQN

...* JL.

Examination VOiume Dimensions'- Height 0.264" Length 21" Width 2" .Coverage Summary Required scans (each has a weighing factor oflOOfor.complete coverage).

ANGLE upst-Ax UpSt-Circ Dnst-Aic

. :onst-Circ 45/60 0% 100%..

100%

60 L

5~%

I so%

100+1oo+o+s3.;2s3 /4=63

~Best Effort'coverage {Max 4s%) Total. I '13% Note~:

1) COde*Coverage refers tothe max;mum p~rcenfage of the required exa'mination~ol~me

~hat is effectiv~ly ~~~min~d witf) the qlialififi!d el'.{(lmination prpcedure,.* 2(Besttffort Cove~agerefers ~o*the,required exami~atiort voluni~:pdstth~ weld ~enterline.t.hat is examined'iti the axial,bea~ direction, with-'an Appe'n~li<Vlll. demonstrated'procedure fursil')gle.sided cdyerage;

UT Calibration/Examination Slteli.Jnit: NAPS 1 Procedure: ER-AA-NOE-UT -802 Outage* No.: N1R23 ~~~~~~~~~-~~~~- Summary No.: N1.R1.11.016 Pro i; e d v re Re11.: 2 Report No.: UT;13..Q50 ~~-~--------~--~~- Works cope: ISi Work Order No.: 591(12917557 Page:: 1 of 7 Code: 2004 Edition CafJltem: R*AIR1.11 Location: Bloop Drawing No:: 1.1715-WMKS-0103Y

== Description:== Elbow to Branch Systfjm ID: RC

~--------~~~~~--------~~~~------~~--~~~----------------------------

Component 10:. 11715*WMKS-0103Yl 6-RC-19/14 Size/Length: 1,10" / 2t.O" Thlckoess!Diameter: 0.719~ / 6q Limitations.: Single sided exam due to elbow to branch configuration Sfart T!m11: 1135 Finish Time: 1150 [ristrument Settings Search Unit Gal. Time Date Seriril No.: 091639803 Serial Nt>.: 01CLN1 Che:eks Manufactur~r:

Panametrics Manufacturer:.

KBA initial Cal. 0855 911712013 Model: EPOCH4 Linearlfy: L~13-024 Siie: 0.375* Model: Comp-G Inter. Cal. 1135. 9i17/2013 Delay: o5.116µs Range: 2.w Freq.: 2,25MHZ Center Freq.: NIA lriter:Cal. NIA M'llCa!Nel: o~ 1230 inliJs Pulser: Square. Exam Angle: 45* Squint Angle: NIA Inter. Cal~ -NIA Final Cal. 1442 9117/201"3 Damping: 4000 Reject: oo/; Measured.Angle: 4S0 Mode: Sl')11ar Rep.* Rate: Auto Freq.: 2.0.IY!Hz Couplant Exit Point 0.2"

of Elements:

1 Filter: Q.8~3.0 Mode: Fullwave Config:: Sing!_e

N~

.Cal, Batcti: 12JD66 Voliage:

Max:

Qt her: NIA-Focus:. Type: Scinotech Shape: Round Contour: NIA Mfg.~ 1\\11AGNAFUJX Wedge Style: MSWQC Ax. Gain (dB): 7.0 Cir::;.. Gain (dB): NIA Exam Batch: 12J066 10 S'creen Div, = 2.0 1h. of Sound Path Search Onit'Cable Type: Sonoteeh Type: RG174 Length: 6' No-. Conn.: 0 MAGNA.FLUX

Calibration Btock Mfg.:

Scan CC>verage Ca!. Block No. 05-S5'14 Upstream~ Downstream O Sc.an dB: ;25.0 Refel'.ence Block. ThICkness 2;25~ Dia.: 0 CCW2} Seri;a!No.; 05-6534 cw~ .Scan.dB:' ;z!rn Cal. Blk. Te1j1p. nb* Temp. Tool: 1073BGCY -- Type: SS Rompus Block

Exam Surface:

OD Comp. temp. 79_** Temp. Tool: 1073BGCY . Slirfac¢ Condition: Ground. Recordable lndication(s): Yes Yi 1;£1 No. 1 D (If. Yes, f(eLAttacheifUltrasonic lndicaticn Report.} Results: NRIO RI D Geom !!2J Comments: None Percent Of Coverage Obtained >-90%-: Examiner Kllpela, Jamie E.. Examiner Level ll*PDI Level l):.P Other Level NIA VT CaiibrationlExaniination No .Revie',\\led Previous. Data: Yes Qale 9/17/2013 Date 9/171201~ Date Reviewer Axiill Orientated Search. U.rtit Caiibrati0n Signal Sv;e_ep* Reflector Amplitude% Division Sound Path 1.0° Notch

ao 7.0 1:393" Circumferential _Orientated Search Unit Calibration.

Signal Sweep Reflector Amplitude% DivisLcm NIA ReferenceJSirriulatQr Block. Gain Signal Sw'ilep dS Reflector Amplit1.1de.% Division 7;{1 FSDH 20 5;2 Sound Path Sound Path 1.028"' Date. "f-l"!*'to/3 Date. Date m z (') r 0 en c

c m c

~ lJ z )> -u en c ~

UT Calibration/Examination !!)omi:nien' Si!eiUnit: NAPS J 1 Procedure: ER*AA-NDE-UT-802 Outage No.: N1 R23 Summary No.: N1.RM1.016 P(ocedure R.ev.: 2 Repor1No.: UT*13.050 ~-~~----------- Works co ;)e: ISi Work OrderNt;.: 59102617557 of 7 Code: 2004 Edition CatJltcm: R-i\\IR1.11 Location: Bloop Drawing No.: 11715*WMKS*01li3Y

== Description:== Elbow to Branch System ID: RC ---------,.---------------------------------------------------- Component 10: 11715-WMKS..0103Y I 6-RC ~19 I 14 Size/Length: 1.1 O" / 21.0n Thickness/Diameter: 0.719~ J 6" Limitations: Single sidad axam clue to elbow to branch configuration Start Time: 1226 Finfali Time: 1233 Instrument lil!ttings Search Unit Cal. Axial Orientated Senrch Unit Time Dato Serial No.; 09.1S398ll3 Sorl2i'No.: SI0328 ChAc:ki; lriitial.Cal. Calibration

19na1
weep Sound Path Manufacturer

Panametrics Manufacturer: GE 0858 9(17/2013 Reflector Amplitude % Division Model: EPoCH:4 ' Linearity: L"13..024 Size: .375" Model: MSWQC Inter. Cal. 1.226 9/1.712013 1.0" Notch 80 6.3 1.818" Delay: e~a21 p~ Range: 2.so~ Freq.: 2.25 MHZ Center Freq;: NIA Inter; Cal. NIA M'tJCalNel: o. 123*0 in/µs Pulser: Square Exam Angle: Squint Angle: NIA Inter. Cal. N/A .eo* Final Cat 1443 911712013 Damping: 4000 Rojccl: 0% Measured* Angle: *ao* Mode: Shear Rep. Rate: Criuplant Auto Freq,: 2.0 MHz ExitPoiiit

o.2s"

of Elements:

1 Ci.rcumfer~nlial Orientated Search Unit Filter: Q,&;.3.0 Mode: Fullwave Config::. Singii.1

CaL Balc!1:

12J066 Fews: NIA Voltage: Max Other: NfA Type: Sonoteoh Calibration Signal Sweep Shape: Rc:>und Contour: .NIA-Mfg,, MAGNAFLUX Refleelar Amplitude % Division Sound Palb Wedge Styfo: MSWQC NIA Ax: Gain (d8): 215 t.frc. Gain (dB): NIA Search Unit Cable E;xam Batch: 12J06& Type: Soncitech 10 Screen Oiv. :::: 2.9 in: of Sound Path Type: RG174 Length: 6' No. Conn.: 0 Mfg.: MAGNAFLUX Calibration Block Scan Coverage Cal. Block No. 05-8514 Upstream~ DownstreamO ScaridB: 33.5 Reference Bli:lck Reforence/Simulator Block Thickness 2,25~ Di;:!.: 0 cw~ ccw~ Scan dB: 33.5. Seriaflilo,: 05-6534 Gain Signal Sweep 'Sound*Peth dB Reflector Ampfttodec% Dillisien .Cal. Blk. Temp. n* Temp. T;x,\\~ 1073BG.CY -- Type: SS Rompus Block Exam Surface: OD 21',5 FSDH 60 5:1 1.466" Comp. Temp. 79~ temp: Tool: 1013BGCY. Surface tnndilion: Groun*d Recordable indiCation{s): Yeso No RJ (If Yes; R~f, Atta.ctied Ultrasonic Indication Report.} Results: NRI lil]. RIC .Geom O Comments:. Effectil1e coverage using ttie 60° search un!t tias been verified by the presende ofthe weld root resp<insii *

durli1g the* required scans.

Percent'cif Coverage Obtained.> !iO%: No Re\\liewedPreVious Data: Examiner le\\ii;I II-POI Kilpefa, Jamie E. Examiner Level 11~? Zollne.r,. Brian D Other Level. NIA UT Calibratio[tJ8<aminat!on Y&s Date Reviewer

9f1112013 wL.114o,.,A. 5 9117/2013 Date

q.

.2,olJ Doto 9r/'Jr~/j Dale m z (") r 0 CJ) c

o m
o I w z

)> -0 (/) c

J

UT Calibration/Examination Si!$/Unit NAPS Procedure: ER*AA*NDE*UT "302 Outage No.: N1R23 Summary No.: N1.R1.11.016 Proceciur<i Rev.. : 2 Report No.: UT-1 J-050 ~~~~~~~~~~~~~~ Workscope: IS.I Wor'r< Order No.: 59102617557 Page: 3 of 7 Code; R-A/R1.11 Loeation:.. 2;U04 Edition Cat.Jltem: ~~~..;.....,----------~--- Sloop Drav1ing No.: 11715*WMKS-0103Y

Description: Elbow*to Br.anch System ID:

RC ~~~~~~----~~--------~----------~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~--------~~~~~~ Component ID: 11715,WMKS.(J103Yf S*RC,;.19/ 14 SizelLength: 1, 10" l 21.0" Thlckness!Diameter: o.719ft 16" Limitations; Singh!' sided exam due.to elbow to branch configuration Start Time: 154'7 Fini.sh Time: 1556 lnstrvment.Settings Sear<:h Unit Cal. Time Date AXial Orientated Search Unit' Serial No.: 091639803 Serial No;; 2ZK3*10001 Checks Ctilibtation Sigria1 Sweep Manufacturer. Panametrics Manufacturer: Sigma Initial Cat 1454 9/1712013 Reflector }a.mpli!ude % Division Sound Path Model: EPOCH4 Linearity: L*13..:024

Size:
2(18x10)

MOdel: SDA2 Inter. Gal..1540.911712013 1.0"SOH 81> 8.0

2,ozO" Delay:

7.510µs Range: 2.$3" Freq.: 2:0MHZ Center Freq.; NfA Inter. Cal; NfA. M'tlCa!Nel: .1:382 fn/11s Pulser. Square Exam Angle;. 60L Squint Angle: NIA Inter. *cal, NIA Damping: 400!1 Final CaL 1802 9/17/2013 Reject 0% Measµrod Angle: ao* Mode: Longitudinal Couplant Rep.Rate: Auto freq,: 2.0 MHz Exit Point o.5~

cif Elements:

2: Filter: O.il-3.0 Mode:. Fullwav.e Corifig.: D*SBS Focus: . -- Cal. Batch:* 12J066 Circumferential Orientated Search Unit FD.0.75H Voltage.: Max dther: .NIA Shape: Rel angular Contour: RA3:75" Type; J:)onotech Calibration Signal Sweep Sound Path

Mfg;:-.

MAGNAFLUX .Reflector* Amplitude% Division Ax. Gain (\\ls): Wedge Style: Integral* NfA 37.0 .Circ. Gain (dB): l\\JIA Search LinifCabl-1r Exam.'Batch: 12J066 Sonotech 10 Screen biit. = 2.53 in. of. Sound Patlr Typ~; RG174 Length: i;* No. Conn:: 0 Typ.e: Mfg;: MAGNAFl.UX.. Calibration Block Scan Cover'!Qe Cal. Block No~ NAPs-1;0-irW-4 .UpstreamO Downstream,~ ScaridB; 43.0 Referem:e.Block. Reference/Simuiator Block Gai!i Signal Sweep Thickness 3.()67 Dia.:* 7 cwo CCWO.ScandB:. NIA Serial No;: NAPS*1.0*AX-1 Sound Path dB Refle.ctor Ainpli(ude % Division

Cal, B!k. Temp.

72~ Teritp. Tool: 1013BGCY -- Type: 7" Pia RefBlk AX Scan~: Exam Surface: 0.D 37.0 075~:SDH so ij,Q 1.sor. Comp. Temp. 79~: Temp. Tool:* 1073BGCY Surface Condition: Ground Rec.ordable.tndlcation(s): Yes'O No~* (If Yes, Ref. Attached Ultrasonic Indication Report.)

Reiiufts:

Rt.0

Geom O Comments: fi()

0Rlsearch unit utilized for best effort far,side exam area coverage arid interrogation. $hear component indication noted off Cc.JunterbQre area. Percent Of Coverage*Oblained > %: Examiner Level l<ilpela,,Jami~ E, Examiner Level Zollner; Brian.O Other NIA Level UT Calibration/Examil"latioi1 No Reviewed Previous Data: Yes Date Reviewer 911112013 WL. -ri;{C:,,'\\\\ Date 911112013 Date '!/./"f; 13 m z ("') r 0 en c

o m o

.... w z )> -0 Cf) c

J

ENCLOSURE R1-3 Serial No. 17-110 Docket No. 50-338 NAPS Unit 1 4th Interval 2nd Period Limited Exams Page 36 of 45 Supplemental Report Repqrt No.: ---'"--- UT-13-050 Page: 4 of T Summary No;; N1.R1.11.016 Examiner: Kllpela, Jamie E. iE:" Examiner: Zollner, Brian D. :JZS? Level: 11-f>DI Reviewer: i.J.L :'TL;( 0tv1A 5 ,,f!'~L---. Date: q.. lq*Z.DIS Other:...;..N_IA _____ Level: ll~PDI Site. Review: J~~unJ-r, rJaJ0 '!J-Date: <7--l1*~ 1) Level: NIA ANH Review:. 4.-?;;t;= Date: *?h11!.x. WcW - /,/D" /-

<6b\\

[ -

.~7b 3~,b'tD 't ~ AJ. R. 5-JJ.R*. Additional -.SupplementiJI Data

ENCLOSURE R1-3 Serial No. 17-110 Docket No. 50-338 NAPS Unit 1 4th Interval 2nd Period Limited Exams Page 37 of 45 Supplemental Report Examiner: Kilpela, Jamie E. Examiner: Zollner, Brian D Other: NIA Level: ll*PDI Level: ll*PDl Level: N/A ~--------~- Comments: C.R C1E<°DM£7RY 3/:>o' t~f. Sketch or Photo: Additional ~ Supplemental. Data Report No,; __ u_T_.-1_s_-0_5_o_ Page: 5 of 1 Revl(iwer: vJL:TJ}j°"""A s ~ Sile.Review: f?rut,<lp11L ~. K /lfJ ANH Review: f ~ ~ / Dat~: T* r't*Z.e>J"> Date: 1 r/1,- J..Of?J Date: :;/2-1 /(J

ENCLOSURE R1-3 Serial No. 17-110 Docket No. 50-338 NAPS Unit 1 4th Interval 2nd Period Limited Exams Page 38 of 45

Dominion>
ReporfNo: UF13~050 Summary# Nl.Rl.11.016 Pg:

6 of 7 Prepared by: W.iThomas Date: 9/19/2013 Weld' Number Thickness 14 0.690" Weld Width Weld Length 1.1" 21" 2 1 0 1 2 I FLOW 0.23" HTX 1.0S'WOlH :0.. 24 SQ IN. REOOIRED VOLUME EACH SIDE ~~~~~~~~"~EXAMINED 100% a= THE.REQUIRED VOLUME US SIDE AX ANO CIRCDIRECT!ON ~~~~~'\\~.. EXAMINED 0, 09 SQ. IN OS SIDE AX DI REC TI ON )3ES T EFFORT '**'***'**....,,..., *... c... ~.** 091.24 = 0:37X 100 '7 37%BEST EFFORT OS SIDE AX DIRECTION 0 EXAM OS SIDE AX-DIRECTION FOR63% OF THE.REQUIRED EXAM AREA. ExaminationVolume Dimensions-- Height 0.23" Length 21" Width 2.1" Coverage Summary Required Scans (each nas a....,eighing factor of 100 for complete coverage) ANqLE UpSt-Ax UpSt-Circ DnSt~Ax . DnSt-Circ 45/60 100% 100% 0% 60L "'37% Cc>d~ Covera.ge Total. ]

50%
1oo+100+37+0=237/4=59%
BestEffort Cov~(age (Max 25%) Total I 9%

Notes:

1) Code Coverage re.fers to the maximum percentage of the r~qufred e>eaminatlonvolume that is effectively examinerl*wifh the qualified e>eamination procedure.

2) *eest. Effort coverage refers to the required exaininatiqn.volume past the weld..

center! ine that is e>eami ned in the.axial beam direction with an AppendixVll I demonstrated procedure for ~ingle sided coverage. .ANU.ANll. ~,,£. . *... :HSBZ!;. J Revie.l(ied ***. ~1.t;!J,_

Ultrasonic Indication Report Site/Unit: NAPS 1 Se~uch UnitAngle: 45 Wo location: Weld CL lo Location: OR.of US Elbow Procedure: ER*AA*NDE*UT-802

'-----~

Procedure Rev.: 2

~------

Work Order No.: 59102617557 @ Piping Welds O FerriticVesselS ~ 2"T O Other Outi:ige No.: N1R23 Report No.; UT-13*0~0 Page: 7 of 1 w1 vrz MP Metal Path Wmax Distance From Wo To S u: Af Maximum Response RBR Remaining BackReflection L Distance From Da1um W1 W2 Distance From Wo At Distance From Wo:At Of Max (Forward) Of-Max (Backward) Gcmments: C()uriter bore geometry seen 3600 intermitteflt verified by higher angles and plot. lndfcaticin w Forward Angle No~ Of Mait: Of ~Aax DAC w MP \\J'/1 MP _45*- ~ 11.2 1.0"' 1.228" NfA Ni A Examiner Level ll*PDI Kilpela, Jamfo E. Signature* . -~. /.. Examiner le\\'el 11..fjo. _J *..-£). ~**c--\\....._'5ignruure Zollner, Brian o / f/s1...:.... '\\.1::1.JJ ~ Oltier !.,ever NIA' l) Signature N/A Acklitjona!

UT ll:'ld:catiOn Data <Edit From Setup>

Bai::kward L1' L L.2 RBR Remarks Wi NIA Of Max Ot Max Of MIJ Max Max N/A 10.S-Date Heviewer 9/17/t0.13 wl..11JC~A') Amp. NIA

350~ interrrii~e1'lt geo1?tatiyfrom l:lS Elbow.

Date Site Review / ~ign.atl,l(~ /} .9.. Date 9/17f2013 /fau4111AJ /..5~ t/4.' /T~ A/.. '£/ '-:/'f... _;,o/j m z C'> I 0 (f) c

0 m

0

...... w z )> -u (/) c

J

UT Calibration/Examination Site/Unit: NAPS Proce.dure: ER-AA*NOE~UT*S02 Outage No.: N1R23 Summary No,: N1.R1.11.297 Procedure. Rev.: 2 Report ('lo.: UT-13-ll56 ~~~~~~~~~~~~~~ Workscope: ISi Work Order No.: 5910.2617557 Page: of 5 Code: 2004 Ed it ion Cat.lltem: R*A/R1.f1 Localiqn: Bloop 1171G.~Wl'l/IKS-0111BB.

== Description:== Elbow to Pipe

system ID:

CH ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~--~~~~~~~~~~~~~~~~~~~~~~~~~~~~- Compo n en l ID: 11715-WMKS-011.188 /3-CH-1 / SW-1 Siz.e/Length:. 0.625" 1 ft.OO" ThickneSs/Diameter: 0.438" J 3.0" Limitations: Welded.ID tag: lntrados of elbow Start Time: .03:00 Finish Time: 03:07 lnstrumenlSettings

Search Unit Cal.

Axial Orientated Search Unit Time Date Sena!No.'. 040182503 Serial No.: G1CWKS Checks Calibration Signal Sweep Ma.nufacturer: Panameti'ics Manufacturer: KBA Initial Cal. 00:35 9119120.13 Reflector Ampfitude % Di.vision Sound Path t.1o<le1: EPOCH 4 Linearity: L-13-025 Sfze: O.ZS" Mbdei: Comp*G Inter. Cal. 0,3:00 9(19/2013 1.0~ ID Notch 80<% 9.5 1;411" Delay_: 4.914jJs Range: 1.485~ Freq~: 2;25MHZ Center Freq.: NIA. Inter. Cal. NIA M'tl Ca!Nel: o.1261in/ps Puls.er:. Square Exam Angle: 45° Squirit Angle: Inter. Cat 03:07 9/191201;} N/A Dain ping: 400 Ohms. Reject: 0% Final.Cal. 05:10 9/19(2013 Measured Angie: 45* Mode: Shear Rep. Rate: Auto Freq;:* 2JlMhz CoLiplant. Exit Point' 0;15ti

.of Elements:

1 Filler. o.a-3.o Mhz Mode:. Full wave N;:-.Cal *. Batch: 12JOG6 Circumferential Orientated Search Vnit Config,_: Single Focus: Voltage: Max. Other: NIA Type: Sonotech Calibratlon Signal Sweep S.-J.und Path Shape: Round Contour: NIA Mfg.: MAGNAFLUX Reflector Amplitude.% oivfsfon Wedge style: Ax. Gain (dS); 17.Q .Ciro. Gain (dS):. 17.0 MSW QC NIA Exa.m Batch: 12J066 Search Unit Cable 10 Screen Div. "' 1.485 in.of Sound*~ath Lengtn: 6' Type: Soni:itech Type; RGc174 No *. Conn.: 0 Mfg.: MAGNAFLUX Calibration Blc;1c~ Sean C(lilerage Cal. Bfotk No. 1)5'8514 Upstream~ Downstream ii7-J Scan dB:.23:0. Referenc1r8lock ReferencefSimulalor Block Thickness 2.25° Dia.: 0 Serial-No.: 05,6535 Gain Signal Sweep Sound.Path cw~ CCW~ Scan dB;* 23.0 dB. Reflector Amplitude% Division Cal. Btk. Temp, 11* *Temp. Tool: 1066BGCY -- Type: S$ R(!(llpUs Bloc:;k Exam Suiface: OD i7.0 FStll1 23% 7.0 1.053 Comp.Temp. to* Temp. Too$; 1oi3~BGCY' Surface Condition: Ground R.ecord:;ible Indication s : Yes* No, If Yes, Ref. Attached Ultrasonic Indication Report) Results: {) NRI lil) 0 RI 0 Geom O CornlTienJs: Thic:;~ness and contour taken from previous data.report

UT-0.9~1 t9 dated CJ3J24/09 Percent Of Coverage Obtafnecf > 90%:

No Reviewed Prevfous Data: Yes Examiner 1,.evel If.POI Popp, Darrell J. Examiner ' lev.el 11-PDI .Fi.Jec;htmann, Ga~. P Other .Level NIA NIA UT Calibration/Examination m z (') r 0 CJ) c

o m o J..

z )> lJ en c ~

UT Calibration/Examination Sile/Unit: Ni\\P.S I Piucedure: ER-AA-NDE~UT -802 Outage No.: N1R23 .Code: brewing No.; System ID: CH ~-----...,.....------~ stimmOfy ~o,: N1.R1.11.~97 Procedure Rev.: Works c~pe:. ISi Work Order No.: 2004 Edition C~tJltem: R~AJR1.11 1 ms~WMKS-0111BB

== Description:== Elbow t!) Pipe .2 Report No.: UT-13-056 591()2617557 Page: 2 of 5 Location: ~---------~..;._--------------------------------------'-'------------, C:ofilpooent ID: 11715.~WMKS-0111BBI3-CH-1 I SW~1 Sizf.llLeilgth: 0.625" 111.00" Thickness/Di.arneter: 0.438" / 3.0" UmitaHilns: Wlild&d ID tag. lntrados*of.elJ,ow Start Tlme: 03:07 Finish. Time: 03:14 Serial Na.: . Instrument.Settings 'Search.Unit iJ_4_0...;.1"'"~-2s..;.o_3 ______.Seri!'ll No.: _____ .0_1_c_w_K_4_. -----., Manufacturer: KBA cai: Time Diitc AJ<.ial. Oi'J1mtated Search Unit Check.<i Calibration Signal Sweep i.n.itial.. CaJ;.00i40 9/1912013 ReVf1Cior Amplitucie% Oivision Sound Path Inter. Cal; 03:07, 9(1912013 1.0" ID Notch 80"10. a:o 1.696" Manufacturer: Panametrics

Model:.

EP()GH4

Une~rit}t:

l.:~1:1,.025 0.25" Size: Mcidel: Comp'G. Inter. Cal. NIA 03:14 9119/2013 Inter. et:11. Filial Cal. 05:10 9/t912013 Del1jy: 5.487µs Bange: 2.100~ M'tl GaWel: 0.1261 inJps Pufse'f: Square Damping: 4000hms Reje<Jt:, 0% Fteq.: 2.25 MHZ. Center Freq.:, __ N_l_A' __ $quint Angle: NIA' Mode; She.ar Rep.Rate: Auto F'ie9.:* 2.o Mn~ F.i!ter: 0.8~3.o.Mhz .Mode: Fullwave Voltage: Max Other:* Nffi. Ax; Gain (dB): 31;7 Cirb. Gain (dB): 31.7 10 S.creel) Div.. "

2. 1 a Calibrati\\:ln Block Scan Coverage Cal. Blod: No. ______

.:....05.:.*..a_51_4 ______ Upstream~ Dowristrealli0 scan dB; 37.7 CCW¥!.Sean dB: 37;7. Reference Bl()ok ~efererite/Simulafor.stoi:k ThickrieSs . 2:25" Dia:: 0 CW~ 05'1)535 Seria.r['Jo;; -------- Gain dB Sign;;!... ;sweep s

d. P h C~l. Sik. Temp. 71° Temp. Jpol: ___

10._s.... s..,.B._.G_c_Y __ Exail(Surface: Typ!.: Reflector Amplitude % Division o.un

at*
00 SS, Ro~pus Block FSDH

. 42% 6.8 1.429" Comp.:. T .. emp..

_10* Temp. Tool:

10Ge6GC'(

~-- Surface Conditi.on:

Ground Recor(!ablc lni:Heation(s}: Yt>s tJ No &!] WYes. Ref. Attached Ulirasonlc.lnaleation Report,} Re.sl!its: NRt lllJ. .Rl 0 .Geo(Tl 0 Percent Ot'coverage Obtained->.90%: No Reviewed Previous Data:

Yes.

Examiner Level iFPDI Popp! D:irrall J. E:r:aminer Level II.POI t=uachtmnnn; G.ir/P

Other Level NfA NJA UT Calibratioii/Exatniriatkiri Oate Revle\\ver *

s11s12ot3 W.L.1fi'o"""""-.

Date 9/f9/20f3..

Date Commenis: Effe.ctiv.ec:oyerage using ttie SO"seareh unit h.as been verified by the preserice of.the.weld root response during the requlre.d scal'.ls* Date. m z (") l o en c:

o m
o....

.I>. z )> "U (/) c ~

UT Calibration/Examination SitelUnit:. _ __,.. _N_A_f>_s_, ---------- Procedure: ER-AA-NOE-UT-802 Outage No.: N1R23 Summary* No.': NUH:ii.297 ~rocedure-Rev.: 2 'Report Na;: UT-13..()56

~-------~

Workscope:. JS\\ Work Order No.: 59102617557 Page: 3 Of 5 <Aldei: 2004 Edition cat./Uem:* R-AIR1.11 Location: B.loop Dril,wing No.: Description; E~bow to Pipe System lD: CH

~-~-----------,.-------------------------------

Component ID:.11715-WMKS-0111BB{3~H-1 / SW-1 Size/Length: 0;625~ I 11:oori Th!CknessfDfometer: 0.433"/3.0" Limitations: serial No.: Manufacturer: Welded JO tag. hitrados of elbow. lnstrum ent S!l!~ings 04o1e2sos Pana metric$ Med et: .EPOCH 4 Linearity: L-13-025 Delay: 6.834iJs . Range; 3.400" M~I Ca!Nel: Cl.12S1in/µs Pulser:

Square, Searc.h Unii CaL Serial No.:

01CTV4: .Check,s Mariufadurei:; KBA lnltial Cal: Inter. Cai.. .lnter *. Cal. Inter. Cat Final Gal. fAodel: Comp-G Size.:.'--_o_._2_!>" __ Freq.: 2:25 MHZ CentefFreq.: NIA Squint Angle: --*- 70* NIA Start Time: os:14 Finish Time: 03:20 Tiriie oate Axial Or\\i.Jntated Search Unit Calib;ati9n Signal Sweep 00:45 911912013 Renector Arnp!itud~ % Diyisicm SqundPatti '03:14 sr1s12013 1.0" ID Nofoh 80% 8.. 5 2.890'~ NIA 03:20 9l1.9/2013 Damping: 4000hms Reject: 0%: Exam Angle: \\llaasur!Sd Angli;: . 91.'\\ 9/2013 05:11 7o** Mode: Shear '--'_,,__...... __ _._....._ __..... F--------1---------if-----1-------1 Rep. Rate: Auto Freq.: 2.Q Mhz Filter: 0,5.3;0 Mhz Mode: .Fullwave Voltage: NIA E.Xit Poirit o.2on

of Elemerits:

1 c'onfig.. : --5_-,n-9-10-- ~~cus: *. ~;;--- Cal. Satch: -. __ *_12J_0_6_6 _____ c_i_rc_u_m_f~e_re_n_tt_*a_l _O-'-i-i-'en_*t~a_te_d_S_e_a_rc_h~U'-n-it __ --l

Type:

Sonotech Calibration Signal .Sweep Max Other: S()und Path .Shape: Round Conto\\lr:

NIA ReO~or Amplitude, o/~

Dlvision

Mfg;:

MAGNAFL!JX ,\\~Gain (dB): ¢ire *. Gain (dB); NIA Wedge Style: MSW.QC _........ __ _._ __ F--.-N-IA---1~---+----t-----i

'---'----- 5.xam S<1tch:

12JQ66 . Search.Unit Cable 5 d p th 0 Type: son~tech in. of -~- 0 _.u_n_** _a_*._. '-- Ti1µe:. RG-174 LenQlh: ~-*No.. Conn.: --~~~---.._,.. '---------+----~--+-----1-----1 Mf~i;: MAGNA.FLUX. Calibration Block Scan cover;ige ---'-----'-- 1---------'--------'-------'-------1 Cal. eiock+lo. ______ Os_-s_S_1_4 ______ _... Upstream !2J Thickriess 2.25" Dia.:. ______ o_....____ cw 0 Cal. Blk; Temp. 2!'... Temp, Tool: __ 1_0-"{i6_B_G_C_Y'--- ~xam Surtace: comp, Teinp. 70° Temp. Tool: 1066BGCY . -,--'--'------- Surface Condition:* ___ ,..G_ro_un_d _____ _ Rec.ordable lndicat!on(s): Ye.s O (If Yes, ReL Attached Ulfrasoriic lndicatien Report:} GeomO NRl f~ RI CJ Pen:ent-OfColierage.Obtained > 90%: E;xaminer Popp, [);irre!I J, Examin.er Le11e!

II.PD!

Fuecf1tihann, Gary P Other.

Le11er NIA NIA I.Ji' *calibrationtExaminalion No Reviewed Previous Da.ta:

Yes Re(eronc.e Bloc!( Seri2l No,: 05-6535 SS Rom pus Block Comments: None Gain dB 38:5 .Refererii:elSimulator-Bl.ock Signal S\\vee'p Sound Paih ReHector Amplitude *~ Division NSDH 80% 2.9 m z () r 0 en c

0 m

0

~ z )> "U en c

J

UT Calibration/Examination Dcminic:f Si!elUoit NAPS Procedure: ER*AA*NDE*UT "802 Outage No,: N1R23. Summary No.: N1.R1.1U197 Procedure Rev.:. 2 Report No.: UT-13-056 -~~---------- Works top e: 151 W qr k Order No.: 591026t7557 Page: 4 of 5 Code: [)raWing, No.: System ID: CH 2004 Edition CaVJtem: Location: Bloop

== Description:== Elbow to Pipe ~----------------------~-~----------------------------------- Compo n en! ID: 11715~WMKS*ll111BB ! 3.CH*1 I SW-1 Size/Length: o.62s~111.0o" Thickness/Diameter: OA3S" 13.o~ Limitations: Welded ID tag. lhtrados of elbow Start Time: 03:21 Finish Time: lm;tri.irrie nt:Settings .Sea.rch Uni! Caf. 'Time Date AiciaLOrietjtatect Search Unil Serial No.: 040182503 SeriafNo.: 22KG-10001 Ch&cks Calibration Signal Sweep Manufacturer. Panametrics Manufacturer: 'Sigm~ Initial Cal; il0:35 *9fi9/2013

Reflecter Amplitude%

Division Sound Path Model: EPOCH 4 Linearity: L-13.-025 Size: 2(14x8) Model: SDA2 Inter.Cal.:.03:21. 911912013

1" SOii 8Q%

6.7 1.828" Delay: 5.255µs

Range:

2.100" Freq;: 2:0 MH.Z Genter Freq.: 1.990 Inter.Cal *.. ti/A M'U CalNel: 0.2350i nips Pulser: Square lnterdJa!. 03:25 9/19/201:i Exam Ang.le: 60L Squint Mgle: NIA Final Cal. 05:10 .9/1912il13 D<Jmping: 400-0hms Reject:* 0% Measured Angle: ' so* Mode: Longitudjnal c.ouplant ~ep. Rate:. Auto Freq.: 2.D Mhz Exit Point .0.375

of *Elements:

2 Circunifereriti;al c;)rien~ated Search Unit Fiiter: O;B<l.O Mht Modi;: Full wave Config;: o~sss Focus: . FO.s:r.- Cal. Batch: .12Jll66 Voltage: Max Other: NIJI. sliape: RA2.*o* .Type: $Qnotech Calibration signal Sweep Sound Path Retangular Contour. Mfg,:, MA(!;N.&,FLUX Reflecfor Amplitude;% Dil/ision 'Gire. Gain (dS): Wedge Style: Integral Exam Batch: NIA Ax. Gain (dB): 42.5 NIA Seareh Unit Cable 12J066 10 Screen Div. = 2.16 in. Of Sound Path TyPe; RG-174 Lengih: 6* No *. Conn.: Type: .so*nolech 0 Mfg.: M,AGNAFLUX Calibration Block* .sca*n Coverage* Cal.. Block No.

26446 Upstream~ Downslrean:i MJ ScaridB: 48.5 Reference Block R:eferenco/Simulator Block Thickness 3.0905" Dia.:

4.5 Gain Signal Sweep Sound Path ewe ccwo Scan dB: N/A Serial No.: 26447 dB Reflector Amplitude% Division Cal. Blk, Temp. 71° temp. ro61: 106GBGCY Exam Surface: OD Type: 4.5.;Dia Slk~Scans 33.5' SDH 80% 4.8 1.P07" Comp; Temp. 70° Temp.Tool: 1066BGCY Surface*condition: Ground Recordable. Indication( s): YesO Nq 2J (If Ye::.; Ref. Aftach(ld Ultra::.onic Indication Report:) R.e::.ults: NR! MJ RID Geom O Comments: None Percent Of Coverage Obtained > 90%: .Examiner Popp, Da.rrell J. .Level li.-PDI E:.xamlner Level ll*PDl Fuechtmar111,.Gary pi .Other Level NIA NIA UT catibratiorilEJ<amination Reviewed*Previous Data: Yes Date Reviei.ver 9119/2013 i.i.JJ.. :11lo,,...At Date Site ReView 9/191201:1 J?a. 0,,J..,-: Date A. I Review Date 'l*?Z*/'3 te m z (') r 0 en c

o m o....

J.. z )> -0 (/) c ~

ENCLOSURE R1-4 Serial No. 17-110 Docket No. 50-338 NAPS Unit 1 4th Interval 2nd Period Limited Exams Page 44 of 45 Report No: ut~1~;:os6 Summary #N1.R.i.1L297 Pg; 5 of 5 ~ Preparedby:W.thomas ;?T~

Date: 9/22/201~.

Weld Number Thickness .SW-~. 0.50 .. Weld Width*

Weld Length

. 0.5 0 1 FLOW PIPE .167" HT.X.75"WIDTHX 11" LENGTH= 1:33 CUBICIN. 1.38CUBICIN. =REQUIRED EXAM VOUJMEUSAND DSS!DE LIMITATION {)UETO El INTRADOSEFROM 5"TQB": EXl\\MINED 8" US SIDE 8111::: 0.73 X-100., 73% AX OIRECTJON US SIDE EXAMINED 3" OF 11" TOTAL BEST EFFORT 3/11 = 027X10.0 = 27%BEST EFFORT 2 LIMITATION DUETOWELDED NAMEPLATE FRoM 1.7fi' TO 4". EX.AMINE!) 8.75 DSSIDt:;\\JAM!:'PLATE 1s LOCATro:it~ fllOMTOE.. 8.75 / 11=o.s'x100 = 80% OS SIDEA)(AND CIRCDIRECTION EXAMINED 2.25"0F 1:1" TOTAL BEST EFFORT 2.25111::: 0.2 X100 = 20% BEST EFFORT BESHFFORTEXAM 20%.DS SIDE AX DIRECTION, ExaminationVolume Dimensions - Height 0:167" Length 11" Width 1.S'! Cover:age Summary Required Scans (each has a weighing factor of lOOforcomplete coverage} ANGLE UpSt-,Ax UpSt~Circ onst:Ax DriSt*Circ 45/60 73% 100% 80% 1QO% 60L

27%
20%,

Code Cover~geTotal 88%. 100+10{)+190+100=400/4=100%. .~ BestE(fort Coverage (Max,25%) Total.. 123 Notes:

1) Code Coverage refers to the maximum. percentage of the required examination vOiume that is effei:tively e>;afl1ined with the qualified examination proce~ure.*.

2) Best Effort Coverage' refers to the required.examination volumepast the W.!"!ld centerline that is examined in the axial beam direction with an Appendix VIII demonstrated procedure for single sided coverage.

7.0 DURATION OF PROPOSED ALTERNATIVE Serial No. 17-110 Docket No. 50-338 NAPS Unit 1 4th Interval 2nd Period Limited Exams Page 45 of 45 The proposed alternatives in this request, if approved, will be applicable for the fourth 10 year ISi interval for NAPS 1 which began on May 1, 2009 and ends on April 30, 2019. 8.0 PRECEDENTS Similar relief was granted in the Third lnservice Inspection (ISi) Interval, as follows:

1. Request N 1-13-PRT-004-Part B granted for limited coverage for ASME Section XI Exam category B-D, Item No. 83.11 O items.

2. Request N1-13-PRT-004-Part D granted for limited coverage for Risk-Informed examinations on welds similar to the current selections.

Although Fourth Interval Risk-Informed selections are different from those for the Third Interval, alternative requests were granted for examinations in similar locations with the same service conditions as identified in requests N1-13-PRT-004-R1 and N2-13-PRT-002-R1. North Anna Power Station Unit 1 was granted similar alternative requests for Fourth Interval First Period Limitations in request N1-14-LMT-001. North Anna Power Station Unit 2 was granted similar alternative requests for Fourth Interval First Period Limitations in request N2-14-LMT-002.

9.0 REFERENCES

1. ASME Code Section XI, 2004 Edition with No Addenda.

2. "North Anna Power Station, Unit No. 1, 'Third 10-Year lnservice Inspection Interval Program, Relief Request N1-13-PRT-004, Part A through Part G," dated 1/7/2011 (ADAMS Accession No.: ML110060011)

3. North Anna Power Station, Unit No. 2, "Relief Request N2-13-PRT-002, Limited Coverage Examinations for the Third 10-Year lnservice Inspection Interval," dated 8/17/2012 (ADAMS Accession No.: ML12227A773)

4. North Anna Power Station, Unit No. 1,,"Relief Request N1-14-LMT-001, Limited Examinations for the Fourth 10-Year lnservice Inspection Interval Period 1," dated 8/13/2013 (ADAMS Accession No.: ML 13234A_353)

5. North Anna Power Station, Unit No. 2, "Relief Request N2-14-LMT-002, Limited Examinations for the Fourth 10-Year lnservice Inspection Interval Period 1," dated 2/3/2015 (ADAMS Accession No.: ML15023A219)

6. ASME Code Case N-460, "Alternative Examination Coverage for Class 1 and Class 2 Welds"

7. North Anna Power Station, Unit Nos. 1 and 2, "Fourth 10-Year lnservice Inspection (ISi)

Program., Relief Requests (RRs) for Alternative N1-14-Rl-001 and N2-14-Rl-001," dated 1 /21 /2011 (ADAMS Accession No.: ML110050003)}}

v t e Letter Sequence Request
CAC:MF9689, (Approved, Closed)
Initiation Request, Request, Request Acceptance, Acceptance Administration Questions Answers Results Approval, Approval Other:
MONTHYEAR2018-01-10 [Table View]

ML17121A036

Text

9.0 REFERENCES

9.0 REFERENCES

Navigation menu

Search