RC-13-0068, V. C. Summer, Unit 1, Request Relief from ASME Code Requirements in 3rd Ten Year Inservice Inspection Interval - (RR-III-10) Limited Pressurizer Surge Nozzle-to-Vessel Examination

V. C. Summer, Unit 1, Request Relief from ASME Code Requirements in 3rd Ten Year Inservice Inspection Interval - (RR-III-10) Limited Pressurizer Surge Nozzle-to-Vessel Examination

ML13129A178
Person / Time
Site:	Summer
Issue date:	05/06/2013
From:	Gatlin T D South Carolina Electric & Gas Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
RC-13-0068
Download: ML13129A178 (15)

Text

Thomas D. Gatlin Vice President, Nuclear Operations 803.345.4342 A SCANA COMPANY May 6, 2013 RC-13-0068 U. S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555-0001

Subject:

VIRGIL C. SUMMER NUCLEAR STATION UNIT 1 (VCSNS)DOCKET NO. 50-395 OPERATING LICENSE NO. NPF-12 REQUEST RELIEF FROM ASME CODE REQUIREMENTS IN VCSNS 3RD TEN YEAR INSERVICE INSPECTION INTERVAL (RR-III-10)

Limited Pressurizer Surge Nozzle-to-Vessel Examination Pursuant to 10CFR50.4, South Carolina Electric & Gas Company (SCE&G), acting for itself and as an agent for South Carolina Public Service Authority, hereby submits the attached relief request. Pursuant to 1OCFR50.55a(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 Xl Category B-D, Item No. B3.1 10.This requirement is considered impractical due to the pressurizer shell to surge nozzle weld configuration.

The plant specific information supporting this proposed alternative is provided in Enclosure 1.No new regulatory commitments are being made to the NRC by this letter. If you should have any questions, please contact Mr. Bruce L. Thompson at (803) 931-5042.Very truly yours, Thomas D. Gatlin JMG/TDG/ts

Enclosure:

RR-III-10, Limited Pressurizer Nozzle-to-Vessel Examination c: K. B. Marsh S. A. Byrne J. B. Archie N. S. Cams J. H. Hamilton J. W. Williams W. M. Cherry V. M. McCree E. A. Brown NRC Resident Inspector K. M. Sutton NSRC RTS (CR-12-05348)

File (810.19-2)

PRSF (RC-13-0068) t VirgilC. Summer Station Post Office Box 88 *Jenkinsville, SC .29065. F (803) 345-5209 ý ..

Document Control Desk Enclosure 1 CR-12-05348 RC-13-0068 Page 1 of 4 SOUTH CAROLINA ELECTRIC & GAS CO. (SCE&G)VIRGIL C. SUMMER NUCLEAR STATION UNIT 1 (VCSNS)Relief Request RR-III-10 Limited Pressurizer Nozzle-to-Vessel Examination

1. ASME Code Component(s)

Affected The affected component is the V. C. Summer Unit 1 Pressurizer.

The American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel (BPV) Code, Section Xl (Reference

1) examination category and item number is from IWB-2500 and Table IWB-2500-1 of the ASME BPV Code, Section Xl.Category B-D welds is defined as "Full Penetration Welded Nozzles in Vessels" and for VCSNS Pressurizer Shell to Surge Nozzle weld is represented by Examination Requirements Figure Number IWB-2500-7(b)

Nozzle in Shell or Head (see Figure 1 of this enclosure).

Examination Category Item No. Weld Number Description B-D B3.1 10 1-2100A-8 Pressurizer Surge Nozzle-to-Vessel

2. Applicable Code Edition and Addenda ASME Code Section Xl, "Rules for Inservice Inspection of Nuclear Power Plant Components," 1998 Edition through 2000 Addenda.3. Applicable Code Requirement IWB-2412, Inspection Program B, requires volumetric examination of essentially 100%of pressure-retaining welds identified in Table IWB-2500-1 once each ten-year interval.The V. C. Summer Unit 1 third 10-year inservice inspection (ISI) interval ends December 31, 2013.Table IWB-2500-1, Examination Category B-D requires volumetric examination of Item B3.110 (Pressurizer Nozzle-to-Vessel welds). Figure IWB-2500-7(b) (provided as Figure 1 of attachment

1) depicts the required examination volume (A-B-C-D-E-F-G-H) which includes the actual circumferential weld and adjacent base metal on either side of the weld extending to a distance of one-half the thickness of the wall from the extremities of the weld crown.

Document Control Desk Enclosure 1 CR-12-05348 RC-1 3-0068 Page 2 of 4 NRC Information Notice 98-42, "Implementation of 10CFR50.55a(g)

Inservice Inspection Requirements," termed the reduction in coverage of less than 10% to be"essentially 100 percent." Information Notice 98-42 states in part, "The NRC has adopted and further refined the definition of 'essentially 100 percent' to mean 'greater than 90 percent' ... which has been applied to all examinations of welds or other areas required by ASME Section XM." 4. Reason for Request In accordance with 1 OCFR50.55a(g)(5)(iii), relief is requested for the Pressurizer Surge Nozzle-to-Vessel Weld, ASME Section Xl Category B-D, Item Number B3.1 10 from the"essentially 100 percent" volumetric examination coverage requirement.

During refuel 20, VCSNS was limited in the amount of code coverage obtainable.

VCSNS was successful in coverage of 75.5 percent with no recordable indications.

The essentially 100 percent code coverage (90 percent minimum) requirement is considered impractical due to the pressurizer shell to surge nozzle weld configuration.

Ultrasonic examination of the pressurizer surge nozzle to vessel weld is limited in coverage due to the configuration and interference with the pressurizer heater penetration ring and insulation.

VCSNS is declaring that the examination was performed to the extent practical using qualified equipment and personnel.

5. Proposed Alternative and Basis for Use SCE&G proposes that the examinations completed during the last refuleing, at the reduced coverage, be accepted as meeting the Code requirements to the extent practical.

Alternative components could not be substituted for examination due to the mandatory selection requirements of the Code. The limited volumetric examination 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.The pressurizer is a vertical, cylindrical vessel that provides a point in the Reactor Coolant System where liquid and vapor can be maintained in equilibrium under saturated conditions for pressure control purposes.

The vessel is constructed in accordance with ASME Boiler and Pressure Vessel Code Section III, Class 1 Nuclear Vessels. The pressurizer has a hemispherical top and bottom head (provided as Figure 2 of attachment

1) constructed of SA-533 Grade A Class 2 carbon steel that has a minimal wall thickness of 2.55 inches that includes a 0.19 inch cladding.

All vessel surfaces exposed to reactor coolant are lined with austentic stainless steel cladding.The surge line and electrical heaters are installed through the bottom head of the vessel (provided as Figures 2, 3, and 4 of attachment 1). The nozzle forging for the surge line was constructed with SA-508 Class 2 and has a 24.5 inch diameter at the nozzle to Document Control Desk Enclosure 1 CR-12-05348 RC-1 3-0068 Page 3 of 4 vessel interface which is automatic subarc welded with P1 material to conform to Westinghouse PDS-10365BS.

There are 78 electrical immersion heaters installed in bottom head orientated in three concentric rings with approximately 10 inch spacing (provided as Figure 2 of attachment 1). The rings exclude an 18 inch section for clearance of the 14 inch diameter surge pipe. The inner ring is located on a 34 inch diameter with 20 immersion heaters that are approximately 1.75 inches in diameter and pitched every 4.5 inches.The weld is the Pressurizer Surge Nozzle-To-Vessel Weld (VCSNS weld number 1-2100A-8), ASME Section Xl Category B-D, Item Number B3.1 10 which is the P1 material utilized to conform to Westinghouse PDS-1 0365BS (provided as Detail-E of Figure 4 of this enclosure).

The details of the weld and weld material are located on Westinghouse (Proprietary) drawings:

3453C54, "Wire and Flux Qualification Drawing" and 1097J92, "Lower Head Assembly Drawing." Wesdyne International, a Westinghouse Electric Company, performed the inspection with Procedure SDI-STD-1 010 Revision 3, "Manual Ultrasonic Procedure for the Examination of Pressure Vessel Welds > [Greater Than] 2" [Inches] in Thickness, Including Non-PDI Reactor Vessels and Heads" dated August 9, 2012. The complete Ultrasonic Examination Data Records for the Category B-D, Item B3.1 10 examination included as attachment

2. The report includes details of the UT scanning parameters, including the transducer size, frequency and angle. The examinations were performed on the outside surface with a 45 degree shear wave, 60 degree shear wave, and 0 degree longitudinal wave search units. Also included are coverage plots for each of the examinations showing the nozzle configuration and percent coverage for the scans. As reported, the two level three inspectors were able to obtain 100 percent of the linear weld in the clockwise and counter clockwise direction but were only able to obtain 51 percent for both the axial directions from the head side and from the nozzle side. Based on the coverage, the level three inspector declared a total of 75.5 percent weld required volume coverage was obtained.

This is less than the code allowable of 90 percent therefore this requirement is impractical due to the pressurizer to surge nozzle weld configuration.

During the refuel 20 inspection, station personnel received approximately 1 Rem with 44 mili-Rem received during the inspection by qualified personnel.

6. Duration of Proposed Alternative This request is applicable to the V. C. Summer Unit 1 inservice inspection program for the third 10-year ISI interval that ends December 31, 2013.

Document Control Desk Enclosure 1 CR-12-05348 RC-13-0068 Page 4 of 4 7. Precedents On October 8, 2012 Braidwood Station submitted a similar request that was issued under Accession Number ML12283A084.

Braidwood also sought relief due to impracticality of a similar weld type (Pressurizer Nozzle-To-Vessel) due to limited coverage of the safety valve nozzle and spray nozzle.On April 5, 2007 Watts Bar submitted and on August 29, 2007 was granted relief for a similar request that was issued under Accession Number ML072280088.

Watts Bar was seeking relief due to impracticality of a similar weld type (Pressurizer Nozzle-To-Vessel ) due to limited coverage of the safety valve nozzle and spray nozzle.The average of these scan volumes resulted in approximately 55 percent of the code required volume being scanned.8. References

1. ASME Boiler and Pressure Vessel Code, Section Xl, 1998 Edition through 2000 Addenda, American Society of Mechanical Engineers, New York.2. NRC Information Notice 98-42, "Implementation of 10CFR50.55a(g)

Inservice Inspection Requirements," termed the reduction in coverage of less than 10% to be "essentially 100 percent." 3. Westinghouse (Proprietary) drawings 3453C54, "Wire and Flux Qualification Drawing." 4. Westinghouse (Proprietary) drawings 1097J92, "Lower Head Assembly Drawing."

Document Control Desk Attachment 1 CR-12-05348 RC-1 3-0068 Page 1 of 4 Fig. IWB-&2.500-?(b) 1998 SECTTON .I -DIVISION I rnl, n2 -nozzle wall thickness Is = shell ior head] ,j = no2zle inside corner radius t o -D 4 1E LU ,/SI:\I I i Cladding where present E.=. vol.A-B-C-D-E-F-G-H Corner flaw EXANMNATION REGION INDIO Oil_Shell lot headl adjoining region Attachment weld region Nozzle cylinder region Notzle inside corner region EXAMINATION VOLUME Mtoeo (211 C-0-E-F B-C-F-G A-B-G -H M-N-O-P NOTES: (1) Exa mination regions are identified for the purpose of differentiating the accoltance stondards in IWB-3512.(2) Examination volumes may be determined either by direct measurements on Ihe component or by measurements based on design drawings, Figure 1, FIG. IWB-2500-7(b)

NOZZLE IN SHELL OR HEAD (Examination Zones in Flange Type Nozzles Joined by Full Penetration Butt Welds)

Document Control Desk Attachment 1 CR-12-05348 RC-1 3-0068 Page 2 of 4 I~.w U 0 I I'C-j F Figure 2, Partial VCSNS Drawing 1 MS-07-0117 Pressurizer Outline Document Control Desk Attachment 1 CR-12-05348 RC-13-0068 Page 3 of 4 4 10 u0=01'0*Wt 4 N N S a 0*2: I."-.a.2,-,'1: a hi~I- ~=, 410.J1~0, I'S 4 3.-a IIi~14 IDtm~4 U 0 N Fl 1=.10 a.zo 0.u.at.IajL~j I-4CJ O~I 00-I.M a Figure 3, Partial VCSNS Drawing 1 MS-07-0117 Pressurizer Outline -Detail "E" Immersion Heater Details Document Control Desk Attachment 1 CR-12-05348 RC-1 3-0068 Page 4 of 4 FORG4NGS I)ETAIL"E" Figure 4, Partial VCSNS Drawing 1 MS-07-0118 Pressurizer General Arrangement N IwEsD E-ULTRASONIC EXAMINATION REPORT # NIR-02 Data Pkg # VCS-R20-013-02 2-00466004 Page 1 of 2 CD 0;0 0 0')0, 0 >0)c=) 3 oCD Co~Plant: V.C. Summer Unit: 1 Procedure No.: WDI-STD-013 Rev.: 2 0 0 0 0 0 CD Cln Comp/ System: Isometric Dwg #PZR/RC CGE-1-2100A Cal. Blk. # CGE-24 Ref. I Thermometer S/N: FCN # N/A Blk.# 102465 "T" Nom. 3.4" Nom. Noz 0 19'30006396 Block/ Comp Temp: 67 °F / 89 OF SEARCH UNIT Scan Angle: 550 Mode: Shear Serial No.: 010YLJ Mfr. KBA Fixturing:

Non-Integral Model: Comp G Size: 0.50" Shape: Round Frequency:

2.25 MHz # Elem: 1 Measured Angle: N/A Exit Pnt. 0.65 Couplant Type/Batch

1. UltraGel I1 / 12H028 Examination Surface 0 D OD Material Type 21 CS 0 ssE ID Other 100%90 80'70 6O 50 40 30 20 10 0 ID Notch Rompus --INSTRUMENT SETTINGS]Mfr/Model No. KrautKramer USN 52R Serial No.: 102249 Pulser: Dl Single El Dual Damping: 1000 Reject: 0%Freq.: E) .4-Id] 2-8 Rectify; Full Wave PRF: High Volt: N/A Jack: T Range: 10.0" Velocity 10.1280 Swp Delay: 0.00 Zero: Cal Scan Cable / Length / # Conn: Contoured Wedge 21 I Skew Ang -45*RG- 174/6' /0 Convex. E- CW c0CW Wedge ID 364-003-5321 0 1 2 34 5 6 78 Screen Divisions, 10 = 10 DAC 10 Gain 0° or I Gain 11 N/A N/A dB 43.4 67.4 dB Reflector

%ID [FSHIPosi dB ID Notch [80 6.4 43.4 RompusFSDH 1 50411.4 131.4 f EXAMINATION WELD/AREA 1-2100A-81R I I I Recordable Indications Scan Limitations M YES M, NO LI YES F1 NO I I I I I -- --l 1 l 1 Remarks: Scanned tangentially CW on the blended radius Per WDI-PJF-I307102-EPP-001 Rev. 0 Examiner & A Print Paul Blecha Examiner Print Kenneth Smith Reviewer:7_,ý0&

4 zrlzi 9 Lv. mI Date: 10/29/2012 Lv. III Date: 10/29/2012 Code Coverage Achieved [Loo0 %I Exam is Acceptable n, YES nI NO Date: /_______Reviewer:

'_--:----! I"A powerful part of your team" I '. I Date: /V//q /]r W(Ak~t F/ /Authorized Inspection Agency AV j Copny ULTRASONIC EXAMINATION REPORT # NIR-02 Data Pkg # VCS-R20-013-02 1200466004 Paee 2 of 2 CD 0-h 0)C)C:3 0)00 0)o, 0 C", 0, Plant: V.C. Summer Unit: I Procedure No.: WDI-STD-0 13 Rev.: 2> 0 0 0 CD CD Comp/ System: Isometric Dwg #PZR/RC CGE-1-2100A Cal. Blk. # CGE-24 Ref.Thermometer S/N: FCN # N/A Blk.# 102465 "T" Nom. 3.4" Nom. Noz 0 19" 30006396 Block / Comp Temp: 67 'F / 89 "F SEARCH UNIT Scan Angle: 55* Mode: Shear Serial No.: 010YLJ Mfr. KBA Fixturing:

Non-Integral Model: Comp G Size: 0.50" Shape: Round Frequency:

2.25 MHz # Elem: 1 Measured Angle: N/A Exit Pnt. 0.65 Couplant Type/Batch

1. UltraGel II / 12H028 Cable / Length / # Conn: RG- 174/6' /0 Contoured Wedge 21 Convex '[- CW[ F CCON Skew Ang +45' Wedge ID 364-003-531 Examination Surface []Material Tvne [A CS -'OD [J ss [-1 ID Other 100%90 80"70 60 50 40 30 20 10 0 ss F-1 Other ID Notch Rompus J-Ul IH 1111 INSTRUMENT SETtINGS jMfr/Model No. KrautKramer USN 52R Serial No.: 102249 Pulser: [ Single El Dual Damping: 1000 Reject: 0%Freq.: E] .4-1CZ 2-8 Rectify; Full Wave PRF: High Volt: NIA Jack: T Range: 10.0" Velocity 10 Swp Delay: [ .00 Zero: Cal Scan Gain 0* or _ N/A N/A dB Gain II 43.4 67.4 dB EXAMINATI ON WELD/AREA 1-2100A-8IR 0 1 2 3 4 5 6 7 8 9 10 Screen Divisions.

10 = F-107 DAC SCAN AREA 0* BM El_LTo Weld [T To-Weld [CAL CHECKS Initial Cal.Intermediate Intermediate Intermediate Final Cal.TIME 0835 1101 N/A N/A 1238 Reflector

% Swp ID FSH Pos dB ID Notch 80 6.4 43.4 Rompus FSDH 50 1.4 31.4 I I I Recordable Indications Scan Limitations El YES [ NO E YES E NO I l I I , I I 1/'t Examiner fi k ý<Print Paul Blecha Examiner A 4 Print Kenneth Smith Lv. I]I Date: 10/29/2012 Lv. III Date: 10/29/2012 Remarks: Scanned tangentially CCW on the blended radius Per WDI-PJF-1307102-EPP-001 Rev. 0 Code Coverage Achieved 1001 %1 Exam is Acceptable 21 YES Fl NO Reviewer:

~ lf Date: j) 2/,?..Authorized Inspecti"A powerful part of your team"~WL Date: Z/_on Agency AW E CovnFi,, ULTRASONIC EXAMINATION REPORT l 2 0046Rfl Data Pkg ## PZR-01 VCS-R20-1010-03 Page 1 of 4 CD co-4.0 0) 0)0 CA)CD:3 Plant: V.C.Summer Unit: 1 Procedure No.: WDI-STD-1010 Rev.: 3 0 0 C: cD (-)0 0'0 0 (n 77 Comp/ System: Isometric Dwg #PZR / RC CGE-1-2100A Cal. Blk. # CGE-24 Ref. Blk.#Thermometer S/N: 3 FCN # 01 102465 "T" Nom. 3.4" Nora. Pipe 0 23.7" 0006396 Block / Comp Temp: 67 TF / 89 TF SEARCH UNIT Scan Angle: 00 Mode: Serial No.: 009Y57 Mfr.Fixturing:

Non-Integral Model: Size: 1.0" Shape: Frequency:

2.25 MHz # Elem: Measured Angle: N/A Ex OD Surface Condition Ground Flush INSTRUMENT SETTFINGS Long Material Type E] CS Sl sS El DM Mfr/Model No. KrautKramer USN 52R KBA Gamma Round 1 it Point N/A 90 80 70 60 50 4o 30 20 10 0 1"/4 BIW Reflection Rom~pu 3/4T Ii RL Focal Point Verified El N/A I -Fs/DI Couplant Type/Batch

1. UltraGel II / 12H028 Cable / Length / # Conn: RG- 174 /6' / 0 Contoured Wedge E] N/A Fl AX El Cir]Serial No.: 102249 Pulser: El Single Fl Dual Damping: 1000 Reject: 0%Freq.: [E .4-10 El 2-8 Rectify; Full Wave PRF: High Volt: N/A Jack: T Range: 4 Velocity 0.2319 Swp Delay: 10.000 Zero: 1 0.922 Cal Scan Gain 00 or1 13.0 37 dB Gain [1 N/A I N/A dB 0 1 2 3 4 5 6 7 8 9 10 Screen Divisions, 10 =F401 SCAN AREA oo WRV [0" BM El-L To Weld []S iTo Weld "El Scanned lIIon Weld : 21 CAL CHECKS Initial Cal.Intermediate Intermediate Intermediate Final Cal.YESE] NO TIME 0900 1045 N/A N/A 1238 DAC ReflectoriD ID JFSH Pos [dB 1/4T 80 2.0 13.0 1/2T 80 4.1 113.0 3/4T 80 6.3 13.0 EXAMINATION WELD/AREA 1-2100A-8

/ NOZZLE TO SHELL Recordable Indications Scan Limitations

[] YES E] NO F-1 YES E- NO BW Reflection 1100+1 8.9 113.0 Rompus 80 I 2.5 1 7.0" I I [Examiner ?d-.L A Print Examiner Print Paul Blecha Kenneth Smith Lv. III Date: 10/29/2012 Lv. MI Date: 10/29/2012 Remarks: None Code Coverage Achieved 175.5 % I Risk Informed [] YES El NO C'Bore El Y El N Exam is Acceptable El YES El NO Reviewer:

4 £.4 Date: 1/092//-a-Reviewer:cECl C(7:::-Date:/Z>/_50h'-7"Apwrflprto ouem QtAOST4A EmoLk Authorized Inspection Agency"A powerful part of your team" nW'sng f lF.ULTRASONIC EXAMINATION REPORT 1200466004 Data Pkg ## PZR-01 VCS-R20-1010-03 Pane 2 of 4 0 0)C:)C,, 0')0 00 01 C, 0O 0 CD Plant: V.C.Summer Unit: 1 Procedure No.: WDI-STD-1010 Rev.: 3 0 0 CD 0 0 (D (n Comp/ System: Isometric Dwg #PZR / RC CGE-1-2100A Cal. Blk. # CGE-24 Ref.: Thermometer S/N: FCN# 01 BIk.# 102465 "T" Nom. 3.4" Nom. Pipe 0 23.7" 30006396 Block / Comp Temp: 67 *F / 89 'F SEARCH UNIT Scan Angle: 45* Mode: Shear Serial No.: 0098JL Mfr. KBA Fixturing:

Non-Integral Model: Gamma Size: 0.5" x 1.0" Shape: Rectangle Frequency:

2.25 MHz # Elem: 1 Measured Angle: 44* Exit Point 0.70)D Surface Condition Ground Flush I. INSTRUMENT SETTINGS Material Type F+/- Cs SS F DM Mfr/Model No. KrautKramer USN 52R 1.OO%90 80 70 60 50 40 30 20 10 0 RL Focal Point Verified [Z N/A -I S / FD I Couplant Type/Batch 4: UltraGel II / 12H028 Cable / Length /Conn: RG- 174 /6' /0 Contoured Wedge 2] N/A0 ] A l] ar-]0 1 2 3 4 5 6 7 8 9 10 Screen Divisions, 10 7.0 DAC Reflector " ~ID ' I Pos' dB 1/4T 80 1.6 36 1/2T 55 3.3 36 3/4T 35 5.1 36 Serial No.: 102249 Pulser: R] Single E) Dual Damping: 1000 Reject: 0%Freq.: [1 .4-10 P1 2-8 Rectify; Full Wave PRF: High Volt: N/A Jack: T Range: 7.0" Velocity 1 Swp Delay: [.000 Zero: Cal Scan SCAN AREA oo WRV [o- BM El 1 To Weldj[]ca io Weld 21 Scanned lion Weld : D]CAL CHECKS Initial Cal.Intermediate Intermediate Intermediate Final Cal.YES L- NO TIME 0855 1120 N/A N/A 1240 Gain 0* or 1 36 60 ddB Gain II 36 60 dB EXAMINATION WELD/AREA 1-2100A-8

/ NOZZLE TO SHELL Recordable Indications Scan Limitations EYES ENO IYES ENO ID Notch 30 7.2 1 36 5/4T 125 8.7 36 Remarks: 3db Difference between 3/4 and 5/4 from clad Rompus FSDH 140 1.5 36 side.Examiner _ _ _ _ _ _Lv.!I[ Date: 10129/19)2 Limited scan area, see attached sketch Print Examiner Print Paul Blecha Kenneth Smith Reviewer:

Z /-y.L-o"A powerful Dart of your team" Lv. III Date: 10/29/2012 Date: I 3z/17_. Reviewer:(Authorized Inspection Agency I Code Coverage Achieved 75.5 %/I RiskInformed El YES 2) NO C'Bore 0 Y j] N Exam is Acceptable El YES F NO-'-( L -o ,s~M o~.X~2.. /

oi,,,,,,wEs9ynE ULTRASONIC EXAMINATION REPORT 1200466004 DataPkg## PZR-01 VCS-R20-1010-03 Page 3 of 4 CD 01 0-h M)9 0 0)CO 0 C:)Plant: V.C.Summer Unit: I Procedure No.: WDI-STD-1010 Rev.: 3> 0 0 0 CD 0, Comp/ System: Isometric Dwg #PZE / RC CGE-1-2100A Cal. Blk. # CGE-24 Ref. t Thermometer S/N: FCN # 01 Blk.# 102465 "T" Norm. 3.4" Norm. Pipe 0 23.7" 30006396 Block / Comp Temp: 67 TF / 89 TF SEARCH UNIT Scan Angle: 60* Mode: Shear Serial No.: 00008W Mfr. KBA Fixturing:

Non-Integral Model: Gamma Size: 0.5" x 1.0" Shape: Rectangle Frequency:

2.25 MHz # Elem: 1 Measured Angle: 62* Exit Point 0.85 OD Surface Condition Ground Flush INSTRUMENT SETTINGS Material Type ] CS [ SS [] DM Mfr/Model No. KrautKramer USN 52R 90 80 70 60 50 40 30 20 lO 0 RL Focal Point Verified Couplant Type/Batch

1. Cable / Length / # Conn: Contoured Wedge 2]SCANAREA 0O°WRV [I 0* BM 0].1 T Wldj[j ITo Weld [Scanned l1 on Weld: 21 Examiner Print Examiner Print 2 N/Al -FS/ I I UltraGel II / 12H028 RG- 174/6' /0 N/A F- A)(E] Or], 90 s0 70 80 50 30 20 10 0/4T I I-'110 Notch j 1/2T I LRompu~s*1 ~5 3/44T Se Pu Da Fr P1 erial No.: 102249 user: 21 Single [] Dual amping: 1000 Reject: 0%-eq.: E] .4-10 E] 2-8 Rectify; Full Wave U.F: High Volt: N/A Jack: T Range: 10.0" Velocity 0.1273 Swp Delay: 0.000 Zero: 15.269 0 1 2 34 5 6 78 Screen Divisions, 10 = I10 DAC 10 CAL CHECKS Initial Cal.Intermediate Intermediate Intermediate Final Cal.YESE NO TIME 0850 1137 N/A N/A 1241 Reflector

% 1wp ID FSH Pos dB 1/4T 80 1.7 45 1/2T 45 3.6 45 3/4T 30 5.5 45 Cal Scan Gain 0- or .L 45 67 dB Gain II 45 67 dB EXAMINATION WELD/AREA 1-2100A-8

/ NOZZLE TO SHELL Recordable Indications Scan Limitations

[] YES [ NO Yn yES [ NO ID Notch 1 25 7.3 45 5/4T 08 8.6 45 Remarks: 9db Difference between 3/4 and 5/4 from clad Rompus FSDH 50 1.5 45 side.Paul Blecha Lv. Il Date: 10/29/2012 Lv. m Date: 10/29/2012 Limited scan area. See attached sketch Code Coverage Achieved 175.5 %1 Risk Informed El YES [] NO C'Bore E Y E) N Exam is Acceptable

[] YES [] NO Kenneth Smith Reviewer:

7L Date: Reviewer:

c[ o .77 (Authorized Inspection Agency A-] I vac Date: , /' 0JZ.."A powerful Part of your team" CD --0 C I WEsDvflE ULTRASONIC EXAMINATION SKETCH SHEET Report # PZR-oi q) D 1200466004 Page 4 of 4 M W =$3 1200466004 d ) o, -Plant/Unit:

V.C. Summer/ 1 0 Crown Height: Flush 1 Comp/System:

PZR / RC Crown Width: 2.00" Diameter:

N/A Weld / Component ID Number: 1-21 OOA-8 Weld Length: 74.5" Heater Penetraton 1.25" Typ Weld coverage based on % of weld material scanned from both directions with both transducers t 18.5" perpendicular and parallel to the weld (4 directions)

COMMENTS:

Weld material coverage calculated as: CW =100%, CCW =100%, Ax Hd= 51%, Ax Nz = 51% TOTAL = 302%302% /4 = 75.5% Weld Volume Coverage EXAMINER

.. ,--Lv. III Date 10/29/2012 EXAMINER: ,- -Lv. III Date 10/29/2012 Print Paul Blecha Print Kenneth Smith REWVIEF &ý ýLl DATE IV/2-P/J2--

REVIEWER:

Lv. -772E DATE: 9L/Authorized Inspection Agency r1 -L9oyt-A E--t DATE k /k"A powerful part of your team"