JAFP-18-0076, End of Interval Relief Request Associated with the Fourth Ten-Year Lnservice Inspection (ISI) Interval: Difference between revisions

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{{Adams
#REDIRECT [[JAFP-18-0076, End of Interval Relief Request Associated with the Fourth Ten-Year Inservice Inspection (ISI) Interval]]
| number = ML18208A150
| issue date = 07/26/2018
| title = End of Interval Relief Request Associated with the Fourth Ten-Year Lnservice Inspection (ISI) Interval
| author name = Barstow J
| author affiliation = Exelon Generation Co, LLC
| addressee name =
| addressee affiliation = NRC/Document Control Desk, NRC/NRR
| docket = 05000333
| license number = DPR-059
| contact person =
| case reference number = JAFP-18-0076
| document type = Code Relief or Alternative, Letter type:JAFP
| page count = 203
| project =
| stage = Request
}}
 
=Text=
{{#Wiki_filter:Exelon Generation !;
200 Exelon Way Kennett Square. PA 19348 www.exeloncorp com JAFP-18-0076 July 26, 2018 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 James A. FitzPatrick Nuclear Power Plant Renewed Facility Operating License No. DPR-59 NRG Docket No. 50-333
 
==Subject:==
End of Interval Relief Request Associated with the Fourth Ten-Year lnservice Inspection (ISi) Interval In accordance with 10 CFR 50.55a, "Codes and standards," paragraph (g)(5)(iii), Exelon Generation Company, LLC (Exelon), is requesting relief from the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel (BPV) Code, Section XI, "Rules for lnservice Inspection of Nuclear Power Plant Components." This relief request applies to the fourth ten-year lnservice Inspection (ISi) interval, which concluded on July 31, 2017, for the James A. FitzPatrick Nuclear Power Plant. The fourth ten-year ISi interval complied with the ASME Boiler and Pressure Vessel Code, Section XI, 2001 Edition with 2003 Addenda.
There are no regulatory commitments in this letter.
Exelon requests approval of this relief request by July 26, 2019.
If you have any questions concerning this letter, please contact Tom Loomis at (61 O) 765-5510.
James Barstow Director - Licensing & Regulatory Affairs Exelon Generation Company, LLC
 
==Attachment:==
Relief Request 14R-22 cc:  Regional Administrator, Region I, USNRC USNRC Senior Resident Inspector, JAFNPP Project Manager USNRC, JAFNPP NYSE RDA
 
Attachment Relief Request I4R-22 Page 1
 
10 CFR 50.55a Relief Request I4R-22 Proposed Alternative in Accordance with 10 CFR 50.55a(g)(5)(iii)
                            --Inservice Inspection Impracticality--
Revision 0
: 1. ASME Code Component(s) Affected Code Class:                      1 and 2
 
==Reference:==
IWB-2500, Table IWB-2500-1, IWC-2500, Table IWC-2500-1, ASME Code Case N-460, ASME Code Case N-578-1, Table 1 Examination Category:            B-A, B-D, B-G-1, B-J, C-A, C-B, and R-A Item Number:                    B1.12, B3.90, B6.40, B9.11, C1.20, C2.21, R1.16, and R1.20
 
== Description:==
Limited Examination Coverage Component Number:                See Attachment 1, Table 1 for a list of Component IDs
 
===2. Applicable Code Edition and Addenda===
The James A. FitzPatrick Nuclear Power Plant (JAFNPP) fourth interval Inservice Inspection (ISI) program was based on the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel (BPV) Code, Section XI, 2001 Edition through the 2003 Addenda.
JAFNPP maintains the responsibility to ensure exams were performed in accordance with the requirements of ASME, Section XI, Mandatory Appendix VIII, Performance Demonstration for Ultrasonic Examination Systems, as amended and mandated by 10 CFR 50.55a and as modified by the Performance Demonstration Initiative (PDI) program description. Attachment 1, Table I4R-22.1 identifies if the examinations were performed in accordance with the requirements of ASME, Section XI, Mandatory Appendix VIII.
: 3. Applicable Code Requirements The extent of examination requirement for Examination Category B-A, Item Number B1.12, per Table IWB-2500-1, requires a volumetric examination of essentially 100% of the weld length.
The extent of examination requirement for Examination Category B-D, Item Number B3.90, per Table IWB-2500-1, requires a volumetric examination of all nozzle-to-vessel welds.
During the fourth interval, JAFNPP was approved to use ASME Code Case N-702 in Safety Evaluation Reports (SER) dated October 17, 2012 (ML12279A248) for Relief Request RR-8 and SER dated December 6, 2016 (ML16334A440) for Relief Request RR-18. Also, as allowed by ASME Code Case N-613-1, JAFNPP performed a volumetric examination using a reduced examination volume (A-B-C-D-E-F-G-H) of Figures 1, 2, and 3 of the Code Case in lieu of the previous examination volumes of ASME Section XI, Figures IWB-2500-7(a),
(b), and (c).
The extent of examination requirement for Examination Category B-G-1, Item Number B6.40, per Table IWB-2500-1, requires a volumetric examination of all threads in flange.
The extent of examination requirement for Examination Category B-J, Item Number B9.11, per Table IWB-2500-1, requires surface and volumetric examination of essentially 100% of Page 1
 
10 CFR 50.55a Relief Request I4R-22 Proposed Alternative in Accordance with 10 CFR 50.55a(g)(5)(iii)
                            --Inservice Inspection Impracticality--
Revision 0 the weld length. JAFNPP used ASME Code Case N-663 to not perform the surface examination because the welds are not susceptible to outside surface attack.
The extent of examination requirement for Examination Category C-A, Item Number C1.20, per Table IWC-2500-1, requires a volumetric examination of essentially 100% of the weld length.
The extent of examination requirement for Examination Category C-B, Item Number C2.21, per Table IWC-2500-1, requires a volumetric and surface examination of the nozzle-to-shell weld. Note 4 in Table IWC-2500-1 states, in the case of multiple vessels of similar design, size and service (such as steam generators, heat exchangers), the required examinations may be limited to one vessel or distributed among the vessels.
The extent of examination requirement for Examination Category R-A, Item Numbers R1.16 and R1.20, per Table 1 of ASME Code Case N-578-1, require a volumetric examination of essentially 100% of the length of the Risk Informed Inservice Inspection (RI-ISI) weld. Relief Request RR-3 was submitted and was approved by the NRC in a SER dated February 22, 2008 (ML080420427) in order to utilize EPRI Topical Report (TR) 112657 Rev. B-A, as supplemented by ASME Code Case N-578-1.
JAFNPP adopted ASME Code Case N-460 (Alternative Examination Coverage for Class 1 and Class 2 Welds, Section XI, Division 1), which defines essentially 100% as greater than 90% coverage of the examination volume or surface area, as applicable. The greater than 90% minimum coverage was applied to all surface and volumetric examinations required by ASME Section XI.
: 4. Impracticality of Compliance Pursuant to 10 CFR 50.55a(g)(5)(iii), relief is requested on the basis that conformance with these ASME Section XI Code requirements is impractical as conformance would require extensive structural modifications to the component or surrounding structure.
Although the design of the plant has provided access for examinations to the extent practical, component design configurations such as support interference, geometric configurations and materials such as fitting or valve bodies made of cast stainless steel, may not allow the full required examination volume or surface area coverage with the latest techniques available. Therefore, relief is requested on the basis that ASME Section XI Code requirements to examine these components are impractical due to physical obstructions, plant locations, and/or component geometry.
JAFNPP is unable to satisfy the ASME Section XI Code requirements to perform a visual or volumetric examination of these components due to the physical component configuration, interference from permanent plant equipment, single-sided access, etc. JAFNPP would incur significant engineering, material, and installation costs to perform such modifications without a compensating increase in the level of quality and safety.
Every weld and Reactor Pressure Vessel (RPV) stud hole thread volume was examined as required by applicable procedures and regulations to the extent practicable. In those cases Page 2
 
10 CFR 50.55a Relief Request I4R-22 Proposed Alternative in Accordance with 10 CFR 50.55a(g)(5)(iii)
                              --Inservice Inspection Impracticality--
Revision 0 where UT examinations could potentially have interrogated additional area, such as the inside surface of cast stainless steel valves by looking through a stainless-steel weld, these were considered a best effort examination. However, no additional coverage is credited for this best effort coverage.
When examined, the welds and RPV stud hole thread volumes listed in Table I4R-22.1 of this request did not receive the Code Required Volume (CRV) coverage required by ASME Code Case N-460 due to their component design configurations, material or interference by other items. When this situation occurred, 100% of the accessible volume of each weld or RPV stud hole thread was examined to the extent practical.
Attached is a summary of the examination limitations for each component for which relief is requested. The table also indicates the coverage percentage obtained for each component and other pertinent design information. This table is the cumulative list of the limited ASME Section XI examinations during the fourth ISI interval. Attached are coverage plots which were extracted from the non-destructive examination (NDE) summary sheets that detail the examination limitations.
Based on the above, JAFNPP requests relief to perform examinations without achieving coverage when required coverage is impractical.
: 5. Burden Caused by Compliance To obtain the Code required coverage for the welds and RPV Stud Hole Threads listed in this request that would be needed to obtain essentially 100% coverage, these items and their associated components would have to be physically modified and/or disassembled beyond their current design. Overall, components and fittings associated with the welds listed in this request are constructed of standard design items and materials meeting typical national standards that specify required configurations and dimensions. To replace these items with items of alternate configurations or materials to enhance examination coverage would require unique redesign and fabrication. Because the items in this request are in the Class 1 and 2 boundaries and for the Class 1 items that form a part of the Reactor Coolant Pressure Boundary (RCPB), their redesign and fabrication would be an extensive effort based on the limitations that exist. In addition to obtaining the non-standard items, their installation into the Class 1 boundaries is also a significant effort requiring disassembly of portions of the RCPB.
: 6. Proposed Alternative and Basis for Use JAFNPP has performed the ASME Section XI Code required examinations to the maximum extent practical, or best effort, which are documented in Table I4R-22.1. Due to the physical interferences causing these limitations, there are no alternative examination techniques currently available to increase coverage.
Periodic system pressure tests and VT-2 visual examinations will continue to be performed in accordance with ASME Section Xl, Examination Category B-P, for Class 1 pressure retaining welds and items during each refueling outage, and Examination Category C-H for Class 2 pressure retaining welds and items each inspection period of Table IWB-2500-1 and Page 3
 
10 CFR 50.55a Relief Request I4R-22 Proposed Alternative in Accordance with 10 CFR 50.55a(g)(5)(iii)
                            --Inservice Inspection Impracticality--
Revision 0 Table IWC-2500-1, respectively. Additionally, PT, MT, and UT examinations will continue to be conducted to the maximum extent possible as required by the ASME Section XI ISI program, the RI-ISI program or other applicable augmented programs such as the JAFNPP IGSCC program.
: 7. Duration of Proposed Alternative This request is for the JAFNPP, fourth ten-year ISI interval.
: 8. Precedents
* NRC SER, Surry Power Station Unit No. 2 - Requests for Relief LMT-R01, LMT-SS01, LMT-CS01, LMT-P01, LMT-C01, LMT-C02, LMT-C03, and LMT-C04 - For Limited Coverage Examinations Performed in the Fourth 10-Year Inservice Inspection Interval (CAC Nos. MF7718, MF-7719, MF7720, MF7721 MF7722, MF7723, MF7724 and MF7725), dated February 17, 2017 (ADAMS Accession No. ML16365A118).
* NRC SER, Diablo Canyon Power Plant, Unit No. 1 - Relief Request NDE-SIF-U1 To Allow Use of Alternate American Society of Mechanical Engineers Boiler and Pressure Vessel Code Section XI Examination Requirements for the Third Inservice Inspection Interval (CAC No. MF7552), dated July 27, 2016 (ADAMS Accession No. ML16207A397).
Page 4
 
Table I4R-22.1 James A. FitzPatrick Nuclear Power Plant List of Components with Limited Examination Coverage Sequence      Class,      Weld    Material 1 and    Material 2    Material 3 and Product    Examination    Examination      Applicable      Normal    Appendix Number and    Category  Description Product Form        Weld                  Form                Code    Limitations and    Figures and    Operating    VIII Weld      and Item                                                                            Coverage          Results      Tables      Conditions  Qualified Identification    No.                                                                              Obtained1                                    (Pressure /  Exam Number                                                                                                                                      Temperature) 1.1        Class 1    RPV 2nd    Vessel Shell:    Weld: Ferritic Vessel Shell: SA533 Gr. B,  Auto UT =  Limitations from    Location    1040 psig /  Yes Course Long. SA533 Gr. B,        Steel      Low Alloy Steel Plate with    79.22%      feedwater and    Figure 1-1,      550 F VV-2A        B-A  Seam Weld @    Low Alloy                      Austenitic Stainless Steel                  core spray  Tables 1-1-1, 60°2 WesDyne  Steel Plate                            Cladding                        headers. Four        1-1-3, B1.12
                            # (W8)  with Austenitic                                                                recordable  Figures 1                                      Stainless Steel                                                              indications,    1, 1-1-2 Cladding                                                                allowable per IWB-3510.1 1.2        Class 1    RPV 2nd    Vessel Shell:    Weld: Ferritic Vessel Shell: SA533 Gr. B,  Auto UT =  Limitations from    Location    1040 psig /  Yes Course Long  SA533 Gr. B,        Steel      Low Alloy Steel Plate with    78.16%          feedwater    Figure 1-1,      550 F VV-2B        B-A  Seam Weld @    Low Alloy                      Austenitic Stainless Steel            header, between    Tables 1-2-1, 180°2    Steel Plate                            Cladding                            core spray    to 1-2-2, B1.12 WesDyne #  with Austenitic                                                          downcomers and    Figures 1                              (W9)    Stainless Steel                                                            behind 180°      1, 1-2-2 Cladding                                                                guide rod and core spray headers with one recordable indication, allowable per IWB-3510.1 1.3        Class 1    RPV 2nd    Vessel Shell:    Weld: Ferritic Vessel Shell: SA533 Gr. B,  Auto UT =  Limitations from    Location    1040 psig /  Yes Course Long  SA533 Gr. B,        Steel      Low Alloy Steel Plate with    74.78%      feedwater and    Figure 1-1,      550 F VV-2C        B-A  Seam Weld @    Low Alloy                      Austenitic Stainless Steel                  core spray  Table 1-3-1, 300°2    Steel Plate                            Cladding                        headers with no  Figures 1                  B1.12 WesDyne #  with Austenitic                                                                recordable    1, 1-3-2 (W10)    Stainless Steel                                                                indications Cladding 1.4        Class 1    RPV 3rd    Vessel Shell:    Weld: Ferritic Vessel Shell: SA533 Gr. B,  Auto UT =  Limitations from    Location    1040 psig /  Yes Course Long  SA533 Gr. B,        Steel      Low Alloy Steel Plate with    86.04%      guide rod and    Figure 1-1,      550 F VV-3A        B-A  Seam Weld @    Low Alloy                      Austenitic Stainless Steel              support bracket  Table 1-4-1, 60°2 WesDyne  Steel Plate                            Cladding                        (riser restraint Figures 1                  B1.12
                          # (W11)  with Austenitic                                                          and riser brace)    1, 1-4-2 Stainless Steel                                                                  with no Cladding                                                                    recordable indications 1.5        Class 1    RPV 3rd    Vessel Shell:    Weld: Ferritic Vessel Shell: SA533 Gr. B,  Auto UT =  Limitations from    Location    1040 psig /  Yes Course Long  SA533 Gr. B,        Steel      Low Alloy Steel Plate with    88.38%    guide rod bracket  Figure 1-1,      550 F VV-3B        B-A  Seam Weld @    Low Alloy                      Stainless Steel Cladding                      and angle  Tables 1-5-1, 180°2    Steel Plate                                                            bracket with no  Figures 1                  B1.12 WesDyne #  with Stainless                                                                recordable    1, 1-5-2 (W12)    Steel Cladding                                                                indications Page 5
 
Sequence      Class,        Weld      Material 1 and  Material 2    Material 3 and Product    Examination  Examination      Applicable      Normal    Appendix Number and    Category  Description    Product Form      Weld                  Form                Code    Limitations and  Figures and    Operating    VIII Weld      and Item                                                                              Coverage        Results        Tables    Conditions  Qualified Identification    No.                                                                                Obtained1                                  (Pressure /  Exam Number                                                                                                                                      Temperature) 1.6      Class 1    RPV 3rd      Vessel Shell:  Weld: Ferritic Vessel Shell: SA533 Gr. B,  Auto UT =  Limitations from    Location    1040 psig /  Yes Course Long    SA533 Gr. B,      Steel      Low Alloy Steel Plate with    77.03%    specimen holder    Figure 1-1,      550 F VV-3C        B-A    Seam Weld @      Low Alloy                    Austenitic Stainless Steel              brackets and    Tables 1-6-1, 300°2      Steel Plate                            Cladding                        riser restraint      1-6-2, B1.12 WesDyne #      with Austenitic                                                        bracket with two  Figures 1                              (W13)      Stainless Steel                                                            recordable      1, 1-6-2 Cladding                                                                indications allowable per IWB-3510.1 1.7      Class 1    RPV 4th      Vessel Shell:  Weld: Ferritic Vessel Shell: SA533 Gr. B,  Auto UT =  Limitations from    Location    1040 psig /  Yes Course Long    SA533 Gr. B,      Steel      Low Alloy Steel Plate with    81.13%    jet pump, core    Figure 1-1,      550 F VV-4A        B-A    Seam Weld @      Low Alloy                    Austenitic Stainless Steel            plate and gusset  Table 1-7-1, 40°2 WesDyne      Steel Plate                            Cladding                      brackets with no  Figures 1                  B1.12
                            # (W14)      with Austenitic                                                            recordable      1, 1-7-2 Stainless Steel                                                            indications Cladding 1.8      Class 1      RPV 4th      Vessel Shell:  Weld: Ferritic Vessel Shell: SA533 Gr. B,  Auto UT =  Limitations from    Location    1040 psig /  Yes Course Long    SA533 Gr. B,      Steel      Low Alloy Steel Plate with    85.67%    jet pump, core    Figure 1-1,      550 F VV-4B        B-A      Seam Weld      Low Alloy                    Austenitic Stainless Steel            plate and gusset  Table 1-8-1,
                            @ 160°2        Steel Plate                            Cladding                      brackets with no  Figure 1-8-1, B1.12 WesDyne #    with Austenitic                                                            recordable        1-8-2 (W15)    Stainless Steel                                                            indications Cladding 1.9      Class 1    4th Course    Vessel Shell:  Weld: Ferritic Vessel Shell: SA533 Gr. B,  Auto UT =  Limitations from    Location    1040 psig /  Yes Long Seam      SA533 Gr. B,      Steel      Low Alloy Steel Plate with    79.15%    jet pump, core    Figure 1-1,      550 F VV-4C        B-A    Weld @ 280°2      Low Alloy                    Austenitic Stainless Steel            plate and gusset  Table 1-9-1, WesDyne #        Steel Plate                            Cladding                      brackets with no  Figures 1                  B1.12 (W16)      with Austenitic                                                            recordable      1, 1-9-2 Stainless Steel                                                            indications Cladding 1.10      Class 1        28      Vessel Shell:  Weld: Ferritic Nozzle: SA508 C1.2, Low    UT = 40.35% Limitations From    Location    1000 psig /  Yes Recirculation  SA533 Gr. B,      Steel        Alloy Steel Forging with              Vessel Shell to  Figure 1-2,      525 F N-1B        B-D    Outlet Vessel-    Low Alloy                    Stainless Steel Cladding                    Nozzle      Table 1-10-1, to-Nozzle Weld    Steel Plate                                                            Configuration  Figures 1                  B3.90 (Code Case N-    with Austenitic                                                        and Insulation    1, to 1-10-4 613-1 Figure 2  Stainless Steel                                                        Support Bracket for CRV)2        Cladding                                                              and Support Rings with No Recordable Indications Class 1                                  Weld: Ferritic Vessel Shell: SA533 Gr. B,  UT = 85.90% Limitations From    Location    1212 psig /  Yes Steel      Low Alloy Steel Plate with              Nozzle to Shell  Figure 1-2,      525 F 1.11        B-D          12      Nozzle: SA508                  Austenitic Stainless Steel              Configuration  Table 1-11-1, Recirculation    C1.2, Low                              Cladding                      and Insulation  Figures 1      N-2B        B3.90  Inlet Nozzle-to-  Alloy Steel                                                          Support Bracket    1, to 1-11-3 Vessel Weld    Forging with                                                            and Welded (Code Case N-    Stainless Steel                                                          Plate on the 613-1 Figure 2    Cladding                                                            Vessel with No for CRV)2                                                                              Recordable Indications Page 6
 
Sequence      Class,        Weld      Material 1 and  Material 2    Material 3 and Product    Examination  Examination    Applicable      Normal    Appendix Number and    Category  Description    Product Form      Weld                  Form                Code    Limitations and  Figures and    Operating    VIII Weld      and Item                                                                              Coverage        Results        Tables    Conditions  Qualified Identification    No.                                                                                Obtained1                                  (Pressure /  Exam Number                                                                                                                                      Temperature) 1.12        Class 1        12      Nozzle: SA508  Weld: Ferritic Vessel Shell: SA533 Gr. B,  UT = 85.90% Limitations From    Location    1212 psig /  Yes Recirculation    C1.2, Low        Steel      Low Alloy Steel Plate with              Nozzle to Shell  Figure 1-2,      525 F N-2E          B-D  Inlet Nozzle-to-  Alloy Steel                  Austenitic Stainless Steel              Configuration  Table 1-12-1, Vessel Weld    Forging with                            Cladding                      and Insulation  Figures 1                  B3.90 (Code Case N-    Stainless Steel                                                        Support Bracket  1, to 1-12-5 613-1 Figure 2    Cladding                                                              and Welded for CRV)2                                                                              Plate on the Vessel with No Recordable Indications 1.13        Class 1        12      Nozzle: SA508  Weld: Ferritic Vessel Shell: SA533 Gr. B,  UT = 85.90% Limitations From    Location    1212 psig /  Yes Recirculation    C1.2, Low        Steel      Low Alloy Steel Plate with              Nozzle to Shell  Figure 1-2,      525 F N-2F          B-D  Inlet Nozzle-to-  Alloy Steel                  Austenitic Stainless Steel              Configuration  Table 1-13-1, Vessel Weld    Forging with                            Cladding                      and Insulation  Figures 1                  B3.90 (Code Case N-    Stainless Steel                                                        Support Bracket  1, to 1-13-3 613-1 Figure 2    Cladding                                                                with No for CRV)2                                                                              Recordable Indications 1.14 NOT USED 1.15 NOT USED 1.16        Class 1    24 Main      Vessel Shell:  Weld: Ferritic Nozzle: SA508 C1.2, Low    UT = 35.60% Limitations From    Location    1040 psig /  Yes Steam Vessel-    SA533 Gr. B,      Steel        Alloy Steel Forging with              Shell to Nozzle  Figure 1-2,      551 F N-3D          B-D  to-Nozzle Weld    Low Alloy                    Stainless Steel Cladding                Configuration  Table 1-16-1, (Code Case N-      Steel Plate                                                              with No    Figures 1                  B3.90 613-1 Figure 2  with Austenitic                                                          Recordable    1, to 1-16-4 for CRV)2    Stainless Steel                                                          Indications Cladding 1.17        Class 1  12 Feedwater  Nozzle: SA508  Weld: Ferritic Vessel Shell: SA533 Gr. B,  UT = 14.40% Limitations From    Location    1151 psig /  Yes Nozzle-to-      C1.2, Low        Steel      Low Alloy Steel Plate with              Nozzle to Shell  Figure 1-2,      424 F N-4A          B-D    Vessel Weld      Alloy Steel                  Austenitic Stainless Steel              Configuration  Table 1-17-1, Forging                              Cladding                      and Proximity of Figures 1                  B3.90 Nozzle N-11 with  1, to 1-17-3 No Recordable Indications 1.18        Class 1  12 Feedwater  Nozzle: SA508  Weld: Ferritic Vessel Shell: SA533 Gr. B,  UT = 16.50% Limitations From    Location    1151 psig /  Yes Nozzle-to-      C1.2, Low        Steel      Low Alloy Steel Plate with              Nozzle to Shell  Figure 1-2,      424 F N-4B          B-D    Vessel Weld      Alloy Steel                  Austenitic Stainless Steel              Configuration  Table 1-18-1, Forging                              Cladding                          with No    Figures 1                  B3.90 Recordable      1, 1-18-2 Indications Page 7
 
Sequence      Class,        Weld      Material 1 and  Material 2    Material 3 and Product    Examination  Examination      Applicable      Normal    Appendix Number and    Category  Description  Product Form      Weld                  Form                Code    Limitations and  Figures and      Operating    VIII Weld      and Item                                                                            Coverage        Results        Tables      Conditions  Qualified Identification    No.                                                                              Obtained1                                    (Pressure /  Exam Number                                                                                                                                      Temperature) 1.19      Class 1 12 Feedwater  Nozzle: SA508  Weld: Ferritic Vessel Shell: SA533 Gr. B,  UT = 14.40% Limitations From    Location    1151 psig /  Yes Nozzle-to-    C1.2, Low        Steel      Low Alloy Steel Plate with              Nozzle to Shell    Figure 1-2,      424 F N-4C        B-D    Vessel Weld    Alloy Steel                  Austenitic Stainless Steel              Configuration  Table 1-19-1, Forging                              Cladding                        and Proximity of Figures 1                  B3.90 Nozzle N-11 with  1, to 1-19-3 No Recordable Indications 1.20      Class 1 12 Feedwater  Nozzle: SA508  Weld: Ferritic Vessel Shell: SA533 Gr. B,  UT = 16.50% Limitations From    Location      1151 psig    Yes Nozzle-to-    C1.2, Low        Steel      Low Alloy Steel Plate with              Nozzle to Shell    Figure 1-2,    /424 F N-4D        B-D    Vessel Weld    Alloy Steel                  Austenitic Stainless Steel              Configuration  Table 1-20-1, Forging                              Cladding                            with No    Figures 1                  B3.90 Recordable      1, 1-20-2 Indications 1.21      Class 1 10 Core Spray  Nozzle: SA508  Weld: Ferritic Vessel Shell: SA533 Gr. B,  UT = 38.60% Limitations From    Location    1179 psig /  Yes Nozzle-to-    C1.2, Low        Steel      Low Alloy Steel Plate with              Nozzle to Shell    Figure 1-2,      567 F N-5A        B-D    Vessel Weld    Alloy Steel                  Austenitic Stainless Steel              Configuration  Table 1-21-1, (Code Case N-    Forging with                          Cladding                              and      Figures 1                  B3.90 613-1 Figure 2  Stainless Steel                                                          Thermocouple    1, to 1-21-4 for CRV)2      Cladding                                                            Pad / Insulation Support Ring with No Recordable Indications 1.22      Class 1 3 Control Rod  Nozzle: SA508  Weld: Ferritic Vessel Shell: SA533 Gr. B,  UT = 67.00% Limitations From    Location    1040 psig /  Yes Drive (CRD)    C1.2, Low        Steel      Low Alloy Steel Plate with              Nozzle to Shell    Figure 1-2,      550 F N-9        B-D      Nozzle-to-    Alloy Steel                  Stainless Steel Cladding                Configuration  Figures 1                          Vessel Weld    Forging with                                                            and Insulation  1, to 1-22-2 B3.90 (Code Case N-  Stainless Steel                                                          Support Ring 613-1 Figure 2    Cladding                                                                  with No for CRV)2                                                                              Recordable Indications 1.23      Class 1    5.75 RPV    Head: SA533    Weld: Ferritic Nozzle: SA508 C1.2, Low    UT = 57.60%  Limitations from    Location    1040 psig /  Yes Closure Head    Gr. B, Low      Steel          Alloy Steel Forging                  Head-to-Nozzle    Figure 1-3,      550 F N-TH-A        B-D      (CH) Vent,    Alloy Steel                                                            Configuration  Table 1-23-1, Head-to-        Plate                                                                  with No    Figures 1                  B3.90 Nozzle Weld                                                                              Recordable    1, to 1-23-4 (Spare) (Code                                                                            Indications Case N-613-1 Figure 2 for CRV)2 1.24      Class 1  RPV Threads  Flange: SA508      N/A                    N/A            UT = 79.00%  Limitations from    Note: a    1040 psig /  Yes in Flange on    C1.2, Low                                                            Cladding on the  similar relief    550 F RPV        B-G-1  15 Stud Holes2    Alloy Steel                                                            Inner Side of        was Ligaments                                Forging                                                              Flange and a    approved in 18-32        B6.40 RPV Flange Seal  an NRC SER Ring Groove on    dated May the Outer Side of  30,2018 for the RPV Stud    the fifth ISI Holes with No  interval (ML Recordable    18039A854)
Indications Page 8
 
Sequence      Class,        Weld      Material 1 and    Material 2    Material 3 and Product    Examination  Examination      Applicable      Normal      Appendix Number and    Category    Description  Product Form        Weld                Form                Code    Limitations and  Figures and    Operating      VIII Weld      and Item                                                                              Coverage        Results        Tables    Conditions    Qualified Identification    No.                                                                                Obtained1                                  (Pressure /    Exam Number                                                                                                                                      Temperature) 1.25      Class 1    4 Jet Pump      Safe End:        Weld:        Reducer: Austenitic    UT = 75.00%  Limitation No      Location    1000 psig /    Yes Instrument      Austenitic    Austenitic    Stainless Steel - SA 182              Axial Scan From    Figure 1-5,      525 F 4-02-2-117      B-J  Safe End-to-4  Stainless Steel Stainless Steel    Type 304 Forging                    4 x 8 Reducer  Figures 1                          x 8 Eccentric  - SA-182 Type                                                            Side of Weld    1, 1-25-2 B9.11 Reducer Weld      304 Forging                                                              Based on (IGSCC Sch. 80                                                                            Configuration Cat. D)
Thickness                                                                                with No Terminal
                        .500 to .3882                                                                          Recordable End Indications 1.26      Class 1    8 Jet Pump      Reducer:          Weld:        Reducer: Austenitic    UT = 75.00%  Limitation No      Location    1000 psig /    Yes Instrument 4 x    Austenitic    Austenitic    Stainless Steel - SA 182              Axial Scan From    Figure 1-5,      525 F N8B-SE-1        B-J      8 Eccentric  Stainless Steel Stainless Steel    Type 304 Forging                  8 x 12 Reducer  Figures 1                          Reducer-to-8  - SA 182 Type                                                            Side of Weld    1, 1-26-2 B9.11 x 12 Eccentric    304 Forging                                                              Based on (IGSCC Reducer Weld                                                                            Configuration Cat. D)
Sch. 80                                                                                with No Nominal                                                                              Recordable Thickness                                                                              Indications
                        .688 to .5002 1.27      Class 2    West CRD    Head: Carbon    Weld: Ferritic  Shell: 24 Schedule 80    UT = 42.10% Limitations From    Location    1040 psig /    Yes Scram    Steel - Dished      Steel        Pipe, SA-106 Gr. C                  Shell Side Due to  Figure 1-6,      550 F BH1-A        C-A      Discharge    Head - SA516                                                            Bottom Head    Figures 1                            Instrument      Gr. 70                                                              Configuration,  1 to 1-27-4 C1.20 Volume Tank                                                                          Support Brackets A Shell-to-                                                                          and Weldolets Bottom Head                                                                                with One Recordable Indication Dispositioned as an Isolated Geometric Root Reflector with No Through Wall Extent 1.28      Class 2    20 A RHR        Nozzle:    Weld: Ferritic    Head: Carbon Steel -    UT = 73.10%  Limitation No      Location  400 psig / 450  Yes Heat    Carbon Steel -      Steel        SA516 Gr. 70 Plate                  Axial Scan from  Figure 1-7,        F N3-A        C-B      Exchanger    SA106 GR B                                                MT = 100%    Nozzle Side of  Figure 1-28-1 Nozzle-to-        Pipe                                                              Weld and Limited C2.21 Head Weld                                                                            Scan Length of 2 Due to Adjacent N7-A Nozzle with No Recordable Indications 1.29      Class 1 12 Sweepolet-    Sweepolet:        Weld:      Pipe: Austenitic Stainless UT = 50.00% Limitation Single    Location    1212 psig /    Yes to-Pipe Weld. Austenitic    Austenitic    Steel - A358, Type 316,                Sided Access No    Figure 1-8,      525 F 12-02-2-61      R-A      12 Sch. 80  Stainless Steel Stainless Steel      SA358, Welded                        Scans From    Figures 1                              and .688    - A403, Type                                                          Sweepolet Side    1, 1-29-2 R1.16 Nominal Wall        304                                                              of Weld with No Thickness2                                                                            Recordable Indications Page 9
 
Sequence      Class,        Weld      Material 1 and    Material 2    Material 3 and Product    Examination  Examination      Applicable      Normal    Appendix Number and    Category  Description  Product Form        Weld                Form                Code    Limitations and  Figures and    Operating    VIII Weld      and Item                                                                            Coverage        Results        Tables    Conditions  Qualified Identification    No.                                                                              Obtained1                                  (Pressure /  Exam Number                                                                                                                                    Temperature) 1.30      Class 1 12 Sweepolet-    Sweepolet:        Weld:      Pipe: Austenitic Stainless UT = 50.00% Limitation Single    Location    1212 psig /  Yes to-Pipe Weld. Austenitic    Austenitic    Steel - A358, Type 316,                Sided Access No    Figure 1-9,      525 F 12-02-2-78    R-A      12 Sch. 80  Stainless Steel Stainless Steel      SA358, Welded                        Scans from    Figure 1-30-1 and .688    - A403, Type                                                          Sweepolet Side R1.16 Nominal Wall        304                                                              of Weld with No Thickness2                                                                            Recordable Indications 1.31      Class 1  22 Pipe-to-      Pipe:          Weld:        Sweepolet: Austenitic    UT = 50.00% Limitation Single    Location    1212 psig /  Yes Sweepolet      Austenitic    Austenitic    Stainless Steel - A403,              Sided Access No    Figure 1-10,    525 F 22-02-2-5    R-A      Weld. 22    Stainless Steel Stainless Steel        Type 304                          Scans from        1-31-2, Sch. 80 and    - A358, Type                                                          Sweepolet Side  Figure 1-31-1 R1.16 1.125 Nominal    304, SA240                                                            of Weld with No Wall        (Welded)                                                              Recordable Thickness2                                                                              Indications 1.32      Class 1  22 Pipe-to-      Pipe:          Weld:        Sweepolet: Austenitic    UT = 50.00% Limitation Single    Location    1212 psig /  Yes Sweepolet      Austenitic    Austenitic    Stainless Steel - A403,              Sided Access No    Figure 1-11,    525 F 22-02-2-11    R-A      Weld. 22    Stainless Steel Stainless Steel        Type 304                          Scans From    Figures 1                          Sch. 80 and    - A358, Type                                                          Sweepolet Side    1 to 1-32-3 R1.16 1.125 Nominal  304, SA240,                                                          of Weld with Two Wall          Welded                                                                Recordable Thickness2                                                                              Indications Dispositioned as Root Geometry Intermittent 360° 1.33      Class 1 28 x 22 x 28    Cross:          Weld:      Pipe: Austenitic Stainless UT = 87.00% Limitation Due to    Location    1212 psig /  Yes x 22 Reducing    Austenitic    Austenitic    Steel - A358, Type 304,                      Cross      Figure 1-12,    525 F 22-02-2-28    R-A    Cross-to-Pipe  Stainless Steel Stainless Steel      SA240, Welded                      Configuration  Figures 1                            Weld. 22    -A403, WP304                                                                with No      1, 1-33-2 R1.16 Sch. 80 and                                                                            Recordable 1.125 Nominal                                                                            Indications Wall Thickness2 1.34      Class 1 28 x 22 x 28    Cross:          Weld:      Pipe: Austenitic Stainless UT = 87.00% Limitation Due to    Location    1212 psig /  Yes x 22 Reducing    Austenitic    Austenitic    Steel - A358, Type 304,                      Cross      Figure 1-13,    525 F 22-02-2-29    R-A    Cross-to-Pipe  Stainless Steel Stainless Steel      SA240, Welded                      Configuration  Figures 1                            Weld. 22        - A403,                                                                  with No      1, 1-34-2 R1.16 Sch. 80 and      WP304                                                                Recordable 1.125 Nominal                                                                            Indications Wall Thickness2 1.35      Class 1  22 Pipe-to-      Pipe:          Weld:        Sweepolet: Austenitic    UT = 50.00% Limitation Single    Location    1212 psig /  Yes Sweepolet      Austenitic    Austenitic    Stainless Steel - A403,              Sided Access No    Figure 1-14,    525 F 22-02-2-62    R-A      Weld. 22    Stainless Steel Stainless Steel        Type 304                          Scans from    Figures 1                          Sch. 80 and    - A358, Type                                                          Sweepolet Side    1, 1-35-2 R1.16 1.125 Nominal    304, SA240                                                            of Weld with No Wall        (Welded)                                                              Recordable Thickness2                                                                              Indications Page 10
 
Sequence      Class,      Weld      Material 1 and    Material 2    Material 3 and Product      Examination  Examination      Applicable      Normal      Appendix Number and    Category  Description    Product Form        Weld                  Form                Code    Limitations and  Figures and      Operating      VIII Weld      and Item                                                                              Coverage        Results          Tables      Conditions    Qualified Identification    No.                                                                                Obtained1                                    (Pressure /    Exam Number                                                                                                                                        Temperature) 1.36      Class 1    24 Valve    Valve: RHR          Weld:      Tee: Austenitic Stainless    PAUT =    Limitation Due to    Location    100-150 psig /  Yes RHR-81A-to-    81A Carbon      Austenitic    Steel - ASTM A-182 Gr.        66.90%      Valve to Tee    Figure 1-15,    117-250 F 24-10-130      R-A    24 x 28 x 28 Steel - ASTM    Stainless Steel            F304                                Weld        Figures 1                        Reducing Tee      A-216 Gr.      (Valve RHR                                                Configuration    1, to 1-36-3 R1.16 Weld2            WCB          81A Side                                                  with No Includes                                                Recordable Inconel 182                                                Indications Butter) 1.37      Class 1 24 Valve AOV    Valve: AOV          Weld:      Valve: RHR 81A Carbon        PAUT =    Limitation Due to    Location    100-150 psig /  Yes 68A-to-24      68A Cast      Austenitic    Steel - ASTM A-216 Gr.        46.50%    Valve to Valve  Figure 1-16,    117-250 F 24-10-131      R-A    Valve RHR-      Austenitic    Stainless Steel            WCB.                                Weld        Figures 1                              81A2      Stainless Steel  (Valve RHR                                                Configuration    1, to 1-37-3 R1.16
                                        - A351 CF8M        81A Side                                                  with No Includes                                                Recordable Inconel 182                                                Indications Butter) 1.38      Class 1  24 Carbon    Elbow: Carbon        Weld:        Valve: AOV 68A Cast        PAUT = 50%  Limitation Due to    Location    100-150 psig /  Yes Steel Forged    Steel Forged    Austenitic    Austenitic Stainless Steel -              Cast Stainless  Figure 1-17,    117-250 F 24-10-132      R-A    Elbow-to-24  Elbow - A234    Stainless Steel        A351 CF8M                            Steel Valve    Figures 1                        Cast Stainless    Gr. WPB      (Elbow Side                                                within the    1, to 1-38-3 R1.16 Steel Valve                      Includes                                                Examination AOV 68A2                      Inconel 182                                            Volume with No Butter)                                                Recordable Indications 1.39      Class 1    24 Valve    Valve: RHR          Weld:      Tee: Austenitic Stainless    PAUT =    Limitation Due to    Location    100-150 psig /  Yes RHR-81B-to-    81B Carbon      Austenitic    Steel - ASTM A-182 Gr. F      66.90%      Valve to Tee    Figure 1-18,    117-250 F 24-10-142      R-A    24 x 28 x 28 Steel - ASTM    Stainless Steel                                                Weld        Figures 1                        Reducing Tee      A-216 Gr.      (Valve RHR                                                Configuration    1, to 1-39-3 R1.16 Weld2            WCB          81B Side                                                  with No Includes                                                Recordable Inconel 182                                                Indications Butter) 1.40      Class 1 24 Valve AOV    Valve: AOV          Weld:      Valve: RHR 81B Carbon        PAUT =    Limitation Due to    Location    100-150 psig /  Yes 68B-to-24      68B Cast      Austenitic    Steel - ASTM A-216 Gr.        46.50%    Valve to Valve  Figure 1-19,    117-250 F 24-10-143      R-A    Valve RHR-      Austenitic    Stainless Steel            WCB.                                Weld        Figures 1                              81B2      Stainless Steel  (Valve RHR                                                Configuration    1, to 1-40-3 R1.16
                                        - A351 CF8M        81B Side                                                  with No Includes                                                Recordable Inconel 182                                                Indications Butter) 1.41      Class 1  24 Carbon    Elbow: Carbon        Weld:        Valve: AOV 68B Cast        PAUT = 50%  Limitation Due to    Location    100-150 psig /  Yes Steel Forged    Steel Forged    Austenitic    Austenitic Stainless Steel -              Cast Stainless  Figure 1-20, ,  117- 250 F 24-10-144      R-A    Elbow-to-24  Elbow - A234    Stainless Steel        A351 CF8M                            Steel Valve    Figures 1                        Cast Stainless    Gr. WPB      (Elbow Side                                                within the    1, to 1-41-3 R1.16 Steel Valve                      Includes                                                Examination AOV 68B2                      Inconel 182                                            Volume with No Butter)                                                Recordable Indications Page 11
 
Sequence          Class,            Weld        Material 1 and    Material 2      Material 3 and Product        Examination          Examination        Applicable      Normal    Appendix Number and      Category        Description    Product Form        Weld                    Form                    Code          Limitations and    Figures and      Operating    VIII Weld          and Item                                                                                          Coverage              Results            Tables    Conditions  Qualified Identification        No.                                                                                          Obtained1                                            (Pressure /  Exam Number                                                                                                                                                              Temperature) 1.42          Class 2        20 Elbow -to-  Elbow: Carbon    Weld: Ferritic  Valve: MOV-13A Carbon          UT = 80.55%        Limitation due to      Location  55 psig / 280  Yes Valve 10-      Steel Forged        Steel        Steel - ASTM A-216 Gr.                                Valve        Figure 1-21,  F 20-10-923          R-A          MOV-13A        Elbow - A234                                WCB                                      Configuration    Figures 1                                    Weld. 20        Gr. WPB?                                                                              with One        1, to 1-42-5 R1.20 Sch. 60 and                                                                                          Recordable
                                  .812 Nominal                                                                                          Indication Wall Thickness                                                                                      Dispositioned as Root Geometry Intermittent 360° NOTES:
: 1. Manual Ultrasonic Test (UT), Automated UT (Auto UT), Manual Phased Array UT (PAUT), or Surface Examination by the Magnetic Particle Test (MT) method.
: 2. Drywell Leakage Detection Applies.
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VV-2B VV-2C VV-2A VV-3B                  VV-3A VV-3C VV-4C VV-4B VV-4A Figure 1 Reactor Pressure Vessel (RPV) Longitudinal Seam Welds Ref. MSK-3036 Page 13
 
1.1 Weld VV-2A - RPV 2nd Course Long. Seam Weld @ 60° WesDyne # (W8)
This weld was examined using Automated UT in Inspection Period 3 during RFO22 in 2017 and see Location Figure 1-1. The examination data for this weld is in the WesDyne RPV Summary Report Interval 4 / Period 3. The Code Required Volume (CRV) was determined based on Section XI, Figure IWB-2500-2 and the corresponding CRV as shown on this Figure is A-B-C-D. The Examination Code Coverage Obtained was 79.22%.
The examination of this weld yielded 4 recordable indications and flaw bounding measurements for these indications were performed in accordance with the appropriate, Appendix VIII, Supplements 4 & 5 qualified procedures. The 4 recorded indications were assessed in accordance with the criteria in Section XI, 2001 Edition through the 2003 Addenda, Article IWB-3000, Paragraph IWB-3510.1, and were found to be within the allowable limits specified with no further evaluation required.
Page 14
 
Table 1-1 Weld VV-2A RPV Coverage Breakdowns WELD DESCRIPTION - 2nd COURSE LONG SEAM @ 60° - WELD NO. VV-2A 45 L Dual            45 L        45 Shear        Total %
BEAM              3.6 MHz            3.6 MHz        1.5 MHz DIRECTION WEIGHTED EXAM    WEIGHTED EXAM  WEIGHTED EXAM    EXAM VOLUME VOLUME (42.00%)  VOLUME (17.55%) VOLUME (40.45%) (weighted average)
UP / DOWN            76.48 %          78.87%          86.22%          80.84%
2089.16            900.22        2268.08        ACHIEVED UP / DOWN VOLUME 2731.63          1141.40        2630.57          TOTAL CCW / CW            77.60 %          77.60 %        77.60 %          77.60%
2119.75            885.73        2041.33        ACHIEVED CCW / CW VOLUME 2731.63          1141.40        2630.57          TOTAL Exam Volume: See Combined UT Coverage: 79.22%
Figure 1-1-1 DIRECTION / ORIENTATION = Parallel Scans UP / DOWN and Perp. Scans CCW / CW LIMITATIONS = Feedwater and Core Spray Headers See Figure 1-1-2 Page 15
 
Figure 1-1 Weld VV-2A CRV Cross Section of Scan Coverage Page 16
 
Figure 1-1 Weld VV-2A Limitations From Feedwater and Core Spray Headers Page 17
 
Table 1-1 Weld VV-2A RPV Indication Assessment Page 18
 
1.2 Weld VV-2B - RPV 2nd Course Long. Seam Weld @ 180° WesDyne # (W9)
This weld was examined using Automated UT in Inspection Period 3 during RFO22 in 2017 and see Location Figure 1-1. The examination data for this weld is in the WesDyne RPV Summary Report Interval 4 / Period 3. The Code Required Volume (CRV) was determined based on Section XI, Figure IWB-2500-2 and the corresponding CRV as shown on this Figure is A-B-C-D. The Examination Code Coverage Obtained was 78.16%.
The examination of this weld yielded 1 recordable indication and flaw bounding measurements for this indication were performed in accordance with the appropriate, Appendix VIII, Supplements 4 & 5 qualified procedures. This 1 recorded indication was assessed in accordance with the criteria in Section XI, 2001 Edition through the 2003 Addenda, Article IWB-3000, Paragraph IWB-3510.1, and was found to be within the allowable limits specified with no further evaluation required.
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Table 1-2 Weld VV-2B RPV Coverage Breakdowns WELD DESCRIPTION - 2nd COURSE LONG SEAM @ 180° - WELD NO. VV-2B 45 L Dual            45 L        45 Shear        Total %
BEAM              3.6 MHz            3.6 MHz        1.5 MHz DIRECTION WEIGHTED EXAM    WEIGHTED EXAM  WEIGHTED EXAM    EXAM VOLUME VOLUME (42.00%)  VOLUME (17.55%) VOLUME (40.45%) (weighted average)
UP / DOWN            84.02%            85.08%          89.91%          86.59%
2295.12            971.10        2365.15        ACHIEVED UP / DOWN VOLUME 2731.63          1141.40        2630.57          TOTAL CCW / CW            80.60%            28.58%          76.29%          69.73%
2201.70            326.21        2006.86        ACHIEVED CCW / CW VOLUME 2731.63          1141.40        2630.57          TOTAL Exam Volume: See Combined UT Coverage: 78.16%
Figure 1-2-1 DIRECTION / ORIENTATION = Parallel Scans UP / DOWN and Perp. Scans CCW / CW LIMITATIONS = Feedwater Brackets and Guide Rod See Figure 1-2-2 Page 20
 
Figure 1-2 Weld VV-2B CRV Cross Section of Scan Coverage Page 21
 
Figure 1-2 Weld VV-2B Limitations From Feedwater Header, Between Core Spray Downcomers and Behind 180° Guide Rod and Core Spray Headers VV-2B Sketch A VV-2B Sketch B Page 22
 
VV-2B Sketch C Page 23
 
Table 1-2 Weld VV-2B RPV Indication Assessment Page 24
 
1.3 Weld VV-2C - RPV 2nd Course Long. Seam Weld @ 300° WesDyne # (W10)
This weld was examined using Automated UT in Inspection Period 3 during RFO22 in 2017 and see Location Figure 1-1. The examination data for this weld is in the WesDyne RPV Summary Report Interval 4 / Period 3. The Code Required Volume (CRV) was determined based on Section XI, Figure IWB-2500-2 and the corresponding CRV as shown on this Figure is A-B-C-D. The Examination Code Coverage Obtained was 74.78%.
The examination of this weld yielded no recordable indications.
Page 25
 
Table 1-3 Weld VV-2C RPV Coverage Breakdowns WELD DESCRIPTION - 2nd COURSE LONG SEAM @ 300° - WELD NO. VV-2C 45 L Dual            45 L        45 Shear        Total %
BEAM              3.6 MHz            3.6 MHz        1.5 MHz DIRECTION WEIGHTED EXAM    WEIGHTED EXAM  WEIGHTED EXAM    EXAM VOLUME VOLUME (42.00%)  VOLUME (17.55%) VOLUME (40.45%) (weighted average)
UP / DOWN            74.41 %          74.41%          75.60%          74.89%
2032.61            849.32        1988.71        ACHIEVED UP / DOWN VOLUME 2731.63          1141.40        2630.57          TOTAL CCW / CW            77.06 %          64.50 %        76.58 %          74.66%
2105.00            736.20        2014.49        ACHIEVED CCW / CW VOLUME 2731.63          1141.40        2630.57          TOTAL Exam Volume: See Combined UT Coverage: 74.78%
Figure 1-3-1 DIRECTION / ORIENTATION = Parallel Scans UP / DOWN and Perp. Scans CCW / CW LIMITATIONS = Feedwater and Core Spray Headers See Figure 1-3-2 Page 26
 
Figure 1-3 Weld VV-2C CRV Cross Section of Scan Coverage Page 27
 
Figure 1-3 Weld VV-2C Limitations From Feedwater and Core Spray Headers Page 28
 
1.4 Weld VV-3A - RPV 3rd Course Long. Seam Weld @ 60° WesDyne # (W11)
This weld was examined using Automated UT in Inspection Period 3 during RFO22 in 2017 and see Location Figure 1-1. The examination data for this weld is in the WesDyne RPV Summary Report Interval 4 / Period 3. The Code Required Volume (CRV) was determined based on Section XI, Figure IWB-2500-2 and the corresponding CRV as shown on this Figure is A-B-C-D. The Examination Code Coverage Obtained was 86.04%.
The examination of this weld yielded no recordable indications.
Page 29
 
Table 1-4 Weld VV-3A RPV Coverage Breakdowns WELD DESCRIPTION - 3rd COURSE LONG SEAM @ 60° - WELD NO. VV-3A 45 L Dual            45 L        45 Shear          Total %
BEAM              3.6 MHz            3.6 MHz          1.5 MHz DIRECTION WEIGHTED EXAM    WEIGHTED EXAM  WEIGHTED EXAM      EXAM VOLUME VOLUME (42.00%)  VOLUME (17.55%) VOLUME (40.45%)  (weighted average)
UP / DOWN            81.16%            81.16%            90.79            85.05%
2217.00            926.36          2388.25        ACHIEVED UP / DOWN VOLUME 2731.63          1141.40          2630.57          TOTAL CCW / CW            87.03%            87.03%          87.03%            87.03%
2377.45            993.41          2289.50        ACHIEVED CCW / CW VOLUME 2731.63          1141.40          2630.57          TOTAL Exam Volume: See Combined UT Coverage: 86.04%
Figure 1-4-1 DIRECTION / ORIENTATION = Parallel Scans UP / DOWN and Perp. Scans CCW / CW LIMITATIONS = Guide Rod and Support Bracket (Riser Restraint and Riser Brace) See Figure 1-4-2 Page 30
 
Figure 1-4 Weld VV-3A CRV Cross Section of Scan Coverage Page 31
 
Figure 1-4 Weld VV-3A Limitations From Riser Restraint and Riser Brace VV-3A Sketch A VV-3A Sketch B Page 32
 
1.5 Weld VV-3B - RPV 3rd Course Long. Seam Weld @ 180° WesDyne # (W12)
This weld was examined using Automated UT in Inspection Period 3 during RFO22 in 2017 and see Location Figure 1-1. The examination data for this weld is in the WesDyne RPV Summary Report Interval 4 / Period 3. The Code Required Volume (CRV) was determined based on Section XI, Figure IWB-2500-2 and the corresponding CRV as shown on this Figure is A-B-C-D. The Examination Code Coverage Obtained was 88.38%.
The examination of this weld yielded no recordable indications.
Page 33
 
Table 1-5 Weld VV-3B RPV Coverage Breakdowns WELD DESCRIPTION - 3rd COURSE LONG SEAM @ 180° - WELD NO. VV-3B 45 L Dual            45 L        45 Shear        Total %
BEAM              3.6 MHz            3.6 MHz        1.5 MHz DIRECTION WEIGHTED EXAM    WEIGHTED EXAM  WEIGHTED EXAM    EXAM VOLUME VOLUME (42.00%)  VOLUME (17.55%) VOLUME (40.45%) (weighted average)
UP / DOWN            87.39%            87.39%          96.87          91.23%
2387.19            997.48        2548.29        ACHIEVED UP / DOWN VOLUME 2731.63          1141.40        2630.57          TOTAL CCW / CW            85.54%            85.54%          85.54%          85.54%
2336.65            976.36        2250.20        ACHIEVED CCW / CW VOLUME 2731.63          1141.40        2630.57          TOTAL Exam Volume: See Combined UT Coverage: 88.38%
Figure 1-5-1 DIRECTION / ORIENTATION = Parallel Scans UP / DOWN and Perp. Scans CCW / CW LIMITATIONS = Guide Rod Bracket and Angle Bracket See Figure 1-5-2 Page 34
 
Figure 1-5 Weld VV-3B CRV Cross Section of Scan Coverage Page 35
 
Figure 1-5 Weld VV-3B Limitations From Guide Rod Bracket and Angle Bracket VV-3B Page 36
 
1.6 Weld VV-3C - RPV 3rd Course Long. Seam Weld @ 300° WesDyne # (W13)
This weld was examined using Automated UT in Inspection Period 3 during RFO22 in 2017 and see Location Figure 1-1. The examination data for this weld is in the WesDyne RPV Summary Report Interval 4 / Period 3. The Code Required Volume (CRV) was determined based on Section XI, Figure IWB-2500-2 and the corresponding CRV as shown on this Figure is A-B-C-D. The Examination Code Coverage Obtained was 77.03%.
The examination of this weld yielded 2 recordable indications and flaw bounding measurements for these indications were performed in accordance with the appropriate, Appendix VIII, Supplements 4 & 5 qualified procedures. The 2 recorded indications were assessed in accordance with the criteria in Section XI, 2001 Edition through the 2003 Addenda, Article IWB-3000, Paragraph IWB-3510.1, and were found to be within the allowable limits specified with no further evaluation required.
Page 37
 
Table 1-6 Weld VV-3C RPV Coverage Breakdowns WELD DESCRIPTION - 3rd COURSE LONG SEAM @ 300° - WELD NO. VV-3C 45 L Dual            45 L        45 Shear          Total %
BEAM              3.6 MHz            3.6 MHz        1.5 MHz DIRECTION WEIGHTED EXAM    WEIGHTED EXAM    WEIGHTED EXAM    EXAM VOLUME VOLUME (42.00%)  VOLUME (17.55%) VOLUME (40.45%)  (weighted average)
UP / DOWN            73.60 %          78.10 %        91.15 %          81.49 %
2010.45            891.47        2397.76        ACHIEVED UP / DOWN VOLUME 2731.63          1141.40        2630.57          TOTAL CCW / CW            72.57 %          72.57%          72.57 %          72.57%
1982.47            828.36        1909.12        ACHIEVED CCW / CW VOLUME 2731.63          1141.40        2630.57          TOTAL Exam Volume: See Combined UT Coverage: 77.03%
Figure 1-6-1 DIRECTION / ORIENTATION = Parallel Scans UP / DOWN and Perp. Scans CCW / CW LIMITATIONS = Specimen Holder Brackets and Riser Restraint Bracket See Figure 1-6-2 Page 38
 
Figure 1-6 Weld VV-3C CRV Cross Section of Scan Coverage Page 39
 
Figure 1-6 Weld VV-3C Limitations From Specimen Holder Brackets and Riser Restraint Bracket VV-3C Sketch A VV-3C Sketch B Page 40
 
Table 1-6 Weld VV-3C RPV Indication Assessment Page 41
 
1.7 Weld VV-4A - RPV 4th Course Long. Seam Weld @ 40° WesDyne # (W14)
This weld was examined using Automated UT in Inspection Period 3 during RFO22 in 2017 and see Location Figure 1-1. The examination data for this weld is in the WesDyne RPV Summary Report Interval 4 / Period 3. The Code Required Volume (CRV) was determined based on Section XI, Figure IWB-2500-2 and the corresponding CRV as shown on this Figure is A-B-C-D. The Examination Code Coverage Obtained was 81.13%.
The examination of this weld yielded no recordable indications.
Page 42
 
Table 1-7 Weld VV-4A RPV Coverage Breakdowns WELD DESCRIPTION - 4th COURSE LONG SEAM @ 40° - WELD NO. VV-4A 45 L Dual            45 L        45 Shear        Total %
BEAM              3.6 MHz            3.6 MHz        1.5 MHz DIRECTION WEIGHTED EXAM    WEIGHTED EXAM  WEIGHTED EXAM    EXAM VOLUME VOLUME (42.00%)  VOLUME (17.55%) VOLUME (40.45%) (weighted average)
UP / DOWN            79.18%            79.18%          83.69%          81.01%
2150.73            870.40        2120.57        ACHIEVED UP / DOWN VOLUME 2716.10          1099.20        2533.80          TOTAL CCW / CW            79.98%            81.10%          82.67%          81.26%
2772.30            891.45        2094.57        ACHIEVED CCW / CW VOLUME 2716.10          1099.20        2533.80          TOTAL Exam Volume: See Combined UT Coverage: 81.13%
Figure 1-7-1 DIRECTION / ORIENTATION = Parallel Scans UP / DOWN and Perp. Scans CCW / CW LIMITATIONS = Jet Pump, Core Plate and Gusset Brackets See Figure 1-7-2 Page 43
 
Figure 1-7 Weld VV-4A CRV Cross Section of Scan Coverage Page 44
 
Figure 1-7 Weld VV-4A Limitations From Jet Pump, Core Plate and Gusset Brackets VV-4A Sketch A VV-4A Sketch B Page 45
 
1.8 Weld VV-4B - RPV 4th Course Long. Seam Weld @ 160° WesDyne # (W15)
This weld was examined using Automated UT in Inspection Period 3 during RFO22 in 2017 and see Location Figure 1-1. The examination data for this weld is in the WesDyne RPV Summary Report Interval 4 / Period 3. The Code Required Volume (CRV) was determined based on Section XI, Figure IWB-2500-2 and the corresponding CRV as shown on this Figure is A-B-C-D. The Examination Code Coverage Obtained was 85.67%.
The examination of this weld yielded no recordable indications.
Page 46
 
Table 1-8 Weld VV-4B RPV Coverage Breakdowns WELD DESCRIPTION - 4th COURSE LONG SEAM @ 160° - WELD NO. VV-4B 45 L Dual            45 L        45 Shear        Total %
BEAM              3.6 MHz            3.6 MHz        1.5 MHz DIRECTION WEIGHTED EXAM    WEIGHTED EXAM  WEIGHTED EXAM    EXAM VOLUME VOLUME (42.00%)  VOLUME (17.55%) VOLUME (40.45%) (weighted average)
UP / DOWN            87.57%            88.70%          92.51%          89.77%
2378.49            974.99        2344.02        ACHIEVED UP / DOWN VOLUME 2716.10          1099.20        2533.80          TOTAL CCW / CW            79.72%            79.67%          84.30%          81.56%
2165.27            875.73        2135.99        ACHIEVED CCW / CW VOLUME 2716.10          1099.20        2533.80          TOTAL Exam Volume: See Combined UT Coverage: 85.67%
Figure 1-8-1 DIRECTION / ORIENTATION = Parallel Scans UP / DOWN and Perp. Scans CCW / CW LIMITATIONS = Jet Pump, Core Plate and Gusset Brackets See Figure 1-8-2 Page 47
 
Figure 1-8 Weld VV-4B CRV Cross Section of Scan Coverage Page 48
 
Figure 1-8 Weld VV-4A Limitations From Jet Pump, Core Plate and Gusset Brackets VV-4B Sketch A VV-4B Sketch B Page 49
 
1.9 Weld VV-4C - RPV 4th Course Long. Seam Weld @ 280° WesDyne # (W16)
This weld was examined using Automated UT in Inspection Period 3 during RFO22 in 2017 and see Location Figure 1-1. The examination data for this weld is in the WesDyne RPV Summary Report Interval 4 / Period 3. The Code Required Volume (CRV) was determined based on Section XI, Figure IWB-2500-2 and the corresponding CRV as shown on this Figure is A-B-C-D. The Examination Code Coverage Obtained was 79.15%.
The examination of this weld yielded no recordable indications.
Page 50
 
Table 1-9 Weld VV-4C RPV Coverage Breakdowns WELD DESCRIPTION - 4th COURSE LONG SEAM @ 280° - WELD NO. VV-4C 45 L Dual            45 L        45 Shear        Total %
BEAM              3.6 MHz            3.6 MHz        1.5 MHz DIRECTION WEIGHTED EXAM    WEIGHTED EXAM  WEIGHTED EXAM    EXAM VOLUME VOLUME (42.00%)  VOLUME (17.55%) VOLUME (40.45%) (weighted average)
UP / DOWN            80.05%            80.05%          84.55%          82.23%
2174.24            879.91        2164.88        ACHIEVED UP / DOWN VOLUME 2716.10          1099.20        2533.80          TOTAL CCW / CW            72.66%            76.49%          79.43%          76.07%
2772.30            891.45        2094.57        ACHIEVED CCW / CW VOLUME 2716.10          1099.20        2533.80          TOTAL Exam Volume: See Combined UT Coverage: 79.15%
Figure 1-9-1 DIRECTION / ORIENTATION = Parallel Scans UP / DOWN and Perp. Scans CCW / CW LIMITATIONS = Jet Pump, Core Plate and Gusset Brackets See Figure 1-9-2 Page 51
 
Figure 1-9 Weld VV-4C CRV Cross Section of Scan Coverage Page 52
 
Figure 1-9 Weld VV-4C Limitations From Jet Pump, Core Plate and Gusset Brackets VV-4C Sketch A VV-4C Sketch B Page 53
 
N-3D N-4D N-4B N-4A N-4C                                            N-5A N-9 N-2H                                      N-1B N-2B N-2K N-2F              N-2E Figure 1 Reactor Pressure Vessel (RPV) Nozzle Welds Ref. MSK-3036 Page 54
 
1.10 Weld N-1B - 28 Recirculation Outlet Vessel-to-Nozzle Weld This weld was examined using manual UT in Inspection Period 2 during RFO20 in 2012 and see Location Figure 1-2. The examination data for this weld is in Data Report No. ISI-VEN-12-035. The Code Required Volume (CRV) was determined based on Code Case N-613-1, Figure 2 and the corresponding CRV as shown on this Figure is A-B-C-D-E-F-G-H. The Examination Code Coverage Obtained was 40.35%.
The inner 15% exam volume was per procedure WDI-STD-006 Rev. 0 and EPRI Modeling Report #IR-2012-516. The outer 85% exam volume was per procedure CEP-NDE-0478 Rev. 1 and the exam was performed from the outside of the RPV shell and limited to the shell side of the weld only due to the nozzle configuration. Additional limitations were identified due to a vessel insulation support bracket and insulation support rings.
This weld was previously examined in 1998 and indications were identified as plate segregates in Data Report No. 98-JAF-UT-012. During the performance of the 2012 examination this weld exhibited no signal characteristics or echodynamics associated with recordable flaws and the examination of this weld yielded no recordable indications.
Page 55
 
Table 1-10 Weld N-1B, Coverage Calculations Page 56
 
Figure 1-10 Weld N-1B Limitations From Insulation Support Bracket and Support Rings and Examination Areas Page 57
 
Figure 1-10 Weld N-1B Scan Obstructions Page 58
 
Figure 1-10 Weld N-1B Radial Scan Coverage Page 59
 
Figure 1-10 Weld N-1B Circumferential Scan Coverage Page 60
 
1.11 Weld N-2B - 12 Recirculation Inlet Nozzle-to-Vessel Weld This weld was examined using manual UT in Inspection Period 1 during RFO18 in 2008 and see Location Figure 1-2. The examination data for this weld is in Data Report No. 08UT037. The Code Required Volume (CRV) was determined based on Code Case N-613-1, Figure 2 and the corresponding CRV as shown on this Figure is A-B-C-D-E-F-G-H. The Examination Code Coverage Obtained was 85.90%.
No recordable indications were detected and the exam was performed from the outside of the RPV shell and was limited to the shell side of the weld only due to the nozzle configuration. Additional limitations resulted due to the proximity of an insulation support bracket and a welded plate on the vessel.
This weld was previously examined in 1998 and no change was noted from the previous examination results contained in Data Report No. 98-JAF-UT5-0 as compared with the results of the 2008 examination of this weld.
Page 61
 
Table 1-11 Weld N-2B Coverage Breakdown WELD DESCRIPTION - 12 RECIRCULATION INLET NOZZLE-TO-VESSEL WELD - WELD NO. N-2B See Figures 1-11-1, 1-11-2 and 1-11-3 for the inputs used in this Table and rounding methods may affect calculated values.
Page 62
 
Figure 1-11 Weld N-2B Proposed Scan Coverage 60° RL Transverse Scans Page 63
 
Figure 1-11 Weld N-2B Proposed Scan Coverage 60° RL Perpendicular Scans Page 64
 
Figure 1-11 Weld N-2B Proposed Scan Coverage 60° S Perpendicular Scans Page 65
 
1.12  Weld N-2E - 12 Recirculation Inlet Nozzle-to-Vessel Weld This weld was examined using manual UT in Inspection Period 1 during RFO18 in 2008 and see Location Figure 1-2. The examination data for this weld is in Data Report No. 08UT038. The Code Required Volume (CRV) was determined based on Code Case N-613-1, Figure 2 and the corresponding CRV as shown on this Figure is A-B-C-D-E-F-G-H. The Examination Code Coverage Obtained was 85.90%.
No recordable indications were detected and the exam was performed from the outside of the RPV shell and was limited to the shell side of the weld only due to the nozzle configuration. Additional limitations resulted due to the proximity of an insulation support bracket and a welded plate on the vessel.
This weld was previously examined in 1998 and no change was noted from the previous examination results contained in Data Report No. 98-JAF-UT5-0 as compared with the results of the 2008 examination of this weld.
Page 66
 
Table 1-12 Weld N-2E Coverage Breakdown WELD DESCRIPTION - 12 RECIRCULATION INLET NOZZLE-TO-VESSEL WELD - WELD NO. N-2E See Figures 1-12-1, 1-12-2, 1-12-3, 1-12-4 and 1-12-5 for the inputs used in this Table and rounding methods may affect calculated values.
Page 67
 
Figure 1-12 Weld N-2E Scan Coverage 60° Transverse Scans Page 68
 
Figure 1-12 Weld N-2E Scan Coverage 60° Perpendicular Scans Page 69
 
Figure 1-12 Weld N-2E Proposed Scan Coverage 60° RL Transverse Scans Page 70
 
Figure 1-12 Weld N-2E Proposed Scan Coverage 60° RL Perpendicular Scans Page 71
 
Figure 1-12 Weld N-2E Proposed Scan Coverage 60° S Rotation Skew Page 72
 
1.13 Weld N-2F - 12 Recirculation Inlet Nozzle-to-Vessel Weld This weld was examined using manual UT in Inspection Period 1 during RFO18 in 2008 and see Location Figure 1-2. The examination data for this weld is in Data Report No. 08UT039. The Code Required Volume (CRV) was determined based on Code Case N-613-1, Figure 2 and the corresponding CRV as shown on this Figure is A-B-C-D-E-F-G-H. The Examination Code Coverage Obtained was 85.90%.
No recordable indications were detected and the exam was performed from the outside of the RPV shell and was limited to the shell side of the weld only due to the nozzle configuration. Additional limitations resulted due to the proximity of an insulation support bracket on the vessel.
This weld was previously examined in 2002 and no change was noted from the previous examination results contained in Data Report No. 02-UT-017 as compared with the results of the 2008 examination of this weld.
Page 73
 
Table 1-13 Weld N-2F Coverage Breakdown WELD DESCRIPTION - 12 RECIRCULATION INLET NOZZLE-TO-VESSEL WELD - WELD NO. N-2F See Figures 1-13-1, 1-13-2 and 1-13-3 for the inputs used in this Table and rounding methods may affect calculated values.
Page 74
 
Figure 1-13 Weld N-2F Proposed Scan Coverage 60° RL Transverse Scan Page 75
 
Figure 1-13 Weld N-2F Proposed Scan Coverage 60° RL Perpendicular Scans Page 76
 
Figure 1-13 Weld N-2F Proposed Scan Coverage 60° S Perpendicular Scan Page 77
 
1.14 NOT USED Page 78
 
1.15 NOT USED Page 79
 
1.16 Weld N-3D - 24 Main Steam Vessel-to-Nozzle-Weld This weld was examined using manual UT in Inspection Period 1 during RFO18 in 2008 and see Location Figure 1-2. The examination data for this weld is in Data Report No. 08UT040. The Code Required Volume (CRV) was determined based on Code Case N-613-1, Figure 2 and the corresponding CRV as shown on this Figure is A-B-C-D-E-F-G-H. The Examination Code Coverage Obtained was 35.60%.
No recordable indications were detected and the exam was performed from the outside of the RPV shell and was limited to the shell side of the weld only due to the nozzle configuration.
This weld was previously examined in 1998 and no change was noted from the previous examination results contained in Data Report No. 98-JAF-UT5-0 as compared with the results of the 2008 examination of this weld.
Page 80
 
Table 1-16 Weld N-3D Coverage Estimate Breakdown WELD DESCRIPTION - 24 MAIN STEAM VESSEL-TO NOZZLE WELD - WELD NO. N-3D See Figures 1-16-1, 1-16-2, 1-16-3 and i-16-4 for the inputs used in this Table and rounding methods may affect calculated values.
Page 81
 
Figure 1-16 Weld N-3D Proposed Scan Coverage 60° RL Transverse Scan Page 82
 
Figure 1-16 Weld N-3D Proposed Scan Coverage 60° RL Perpendicular Scans Page 83
 
Figure 1-16 Weld N-3D Proposed Scan Coverage 70° S Perpendicular Scan Page 84
 
Figure 1-16 Weld N-3D Proposed Scan Coverage 60° S Perpendicular Scan Page 85
 
1.17  Weld N-4A - 12 Feedwater Nozzle-to-Vessel Weld This weld was examined using manual UT in Inspection Period 2 during RFO20 in 2012 and see Location Figure 1-2. The examination data for this weld is in Data Report No. ISI-VEN-12-026. The Code Required Volume (CRV) was determined based on Code Case N-613-1, Figure 2 and the corresponding CRV as shown on this Figure is A-B-C-D-E-F-G-H. The Examination Code Coverage Obtained was 14.40%.
The examination of this weld yielded no recordable indications.
The inner 15% exam volume was per procedure WDI-STD-006 Rev. 0 and EPRI Modeling Report #IR-2012-516. The outer 85% exam volume was per procedure CEP-NDE-0478 Rev. 1 and the exam was performed from the outside of the RPV shell and limited to the shell side of the weld only due to the nozzle configuration. Additional limitation was identified due to the location of Nozzle N-11.
Page 86
 
Table 1-17 Weld N-4A Coverage Breakdown Page 87
 
Figure 1-17 Weld N-4A Limitation From Nozzle N-11 Page 88
 
Figure 1-17 Weld N-4A Axial Scan Coverage Page 89
 
Figure 1-17 Weld N-4A Circumferential Scan Coverage Page 90
 
1.18 Weld N-4B - 12 Feedwater Nozzle-to-Vessel Weld This weld was examined using manual UT in Inspection Period 2 during RFO20 in 2012 and see Location Figure 1-2. The examination data for this weld is in Data Report No. ISI-VEN-12-024. The Code Required Volume (CRV) was determined based on Code Case N-613-1, Figure 2 and the corresponding CRV as shown on this Figure is A-B-C-D-E-F-G-H. The Examination Code Coverage Obtained was 16.50%.
The examination of this weld yielded no recordable indications.
The inner 15% exam volume was per procedure WDI-STD-006 Rev. 0 and EPRI Modeling Report #IR-2012-516. The outer 85% exam volume was per procedure CEP-NDE-0478 Rev. 1 and the exam was performed from the outside of the RPV shell and limited to the shell side of the weld only due to the nozzle configuration.
Page 91
 
Table 1-18 Weld N-4B Coverage Breakdown Page 92
 
Figure 1-18 Weld N-4B Axial Scan Coverage Page 93
 
Figure 1-18 Weld N-4B Circumferential Scan Coverage Page 94
 
1.19 Weld N-4C - 12 Feedwater Nozzle-to-Vessel Weld This weld was examined using manual UT in Inspection Period 2 during RFO20 in 2012 and see Location Figure 1-2. The examination data for this weld is in Data Report No. ISI-VEN-12-022. The Code Required Volume (CRV) was determined based on Code Case N-613-1, Figure 2 and the corresponding CRV as shown on this Figure is A-B-C-D-E-F-G-H. The Examination Code Coverage Obtained was 14.40%.
The examination of this weld yielded no recordable indications.
The inner 15% exam volume was per procedure WDI-STD-006 Rev. 0 and EPRI Modeling Report #IR-2012-516. The outer 85% exam volume was per procedure CEP-NDE-0478 Rev. 1 and the exam was performed from the outside of the RPV shell and limited to the shell side of the weld only due to the nozzle configuration. Additional limitation was identified due to the location of Nozzle N-11.
Page 95
 
Table 1-19 Weld N-4C Coverage Breakdown Page 96
 
Figure 1-19 Weld N-4C Limitation From Nozzle N-11 Page 97
 
Figure 1-19 Weld N-4C Axial Scan Coverage Page 98
 
Figure 1-19 Weld N-4C Circumferential Scan Coverage Page 99
 
1.20 Weld N-4D - 12 Feedwater Nozzle-to-Vessel Weld This weld was examined using manual UT in Inspection Period 2 during RFO20 in 2012 and see Location Figure 1-2. The examination data for this weld is in Data Report No. ISI-VEN-12-020. The Code Required Volume (CRV) was determined based on Code Case N-613-1, Figure 2 and the corresponding CRV as shown on this Figure is A-B-C-D-E-F-G-H. The Examination Code Coverage Obtained was 16.50%.
The examination of this weld yielded no recordable indications.
The inner 15% exam volume was per procedure WDI-STD-006 Rev. 0 and EPRI Modeling Report #IR-2012-516. The outer 85% exam volume was per procedure CEP-NDE-0478 Rev. 1 and the exam was performed from the outside of the RPV shell and limited to the shell side of the weld only due to the nozzle configuration.
Page 100
 
Table 1-20 Weld N-4D Coverage Estimate Breakdown Page 101
 
Figure 1-20 Weld N-4D Axial Scan Coverage Page 102
 
Figure 1-20 Weld N-4D Circumferential Scan Coverage Page 103
 
1.21 Weld N-5A - 10 Core Spray Nozzle-to-Vessel Weld This weld was examined using manual UT in Inspection Period 1 during RFO18 in 2008 and see Location Figure 1-2. The examination data for this weld is in Data Report No. 08UT041. The Code Required Volume (CRV) was determined based on Code Case N-613-1, Figure 2 and the corresponding CRV as shown on this Figure is A-B-C-D-E-F-G-H. The Examination Code Coverage Obtained was 38.60%.
No recordable indications were detected and the exam was performed from the outside of the RPV shell and was limited to the shell side of the weld only due to the nozzle configuration. Additional limitations resulted due to the proximity of an insulation support ring and a thermocouple pad. Documentation of these two limitations was taken from the previous examination for this weld in 2000 described below.
This weld was previously examined in 2000 and no change was noted from the previous examination results contained in Data Report No. RO14-UT-023 as compared with the results of the 2008 examination of this weld.
Page 104
 
Table 1-21 Weld N-5A Coverage Breakdown WELD DESCRIPTION - 10 CORE SPRAY NOZZLE-TO-VESSEL WELD - WELD NO. N-5A See Figures 1-21-1, 1-21-2, 1-21-3 and 1-21-4 for the inputs used in this Table and rounding methods may affect calculated values.
Page 105
 
Figure 1-21 Weld N-5A Proposed Scan Coverage 60° RL Transverse Scans Page 106
 
Figure 1-21 Weld N-5A Proposed Scan Coverage 60° RL Perpendicular Scans Page 107
 
Figure 1-21 Weld N-5A Proposed Scan Coverage 60° S Transverse Scans Page 108
 
Figure 1-21 Weld N-5A Proposed Scan Coverage 42.8° S Perpendicular Scans OD Blend Radius Page 109
 
1.22  Weld N 3 Control Rod Drive (CRD) Nozzle-to-Vessel Weld This weld was examined using manual UT in Inspection Period 1 during RFO19 in 2010 and see Location Figure 1-2. The examination data for this weld is contained in three UT Data Reports that were separated due to different calibration data sheets associated with the Data Report Nos. I-1-0UT-036, -037 and -038. The Code Required Volume (CRV) was determined based on Code Case N-613-1, Figure 2 and the corresponding CRV as shown on this Figure is A-B-C-D-E-F-G-H. The Examination Code Coverage Obtained was 67%.
No recordable indications were detected and the exam was performed from the outside of the RPV shell and was limited to the shell side of the weld only due to the nozzle configuration. Additional limitations resulted due to the proximity of an insulation support ring.
Page 110
 
Figure 1-22 Weld N-5A Scan Coverage 60° Axial and Circumferential Scans with Coverage Breakdowns Page 111
 
Figure 1-22 Weld N-9 Limitation From Insulation Support Ring Page 112
 
Location Figure 1-3 RPV Closure Head (CH) Vent, Head-to-Nozzle Weld (Spare) Ref. MSK-3036 Page 113
 
1.23  Weld N-TH-A - 5.75 RPV Closure Head (CH) Vent, Head-to-Nozzle Weld (Spare)
This weld was examined using manual UT in Inspection Period 1 during RFO18 in 2008 and see Location Figure 1-3. The examination data for this weld is in Data Report No. 08UT036. The Code Required Volume (CRV) was determined based on Code Case N-613-1, Figure 2 and the corresponding CRV as shown on this Figure is A-B-C-D-E-F-G-H. The Examination Code Coverage Obtained was 57.60%.
No recordable indications were detected and the exam was performed from the outside of the RPV head and was limited to the head side of the weld only due to the nozzle configuration.
This weld was previously examined in 2000 and no change was noted from the previous examination results contained in Data Report No. RO14-UT-041 as compared with the results of the 2008 examination of this weld.
Page 114
 
Table 1-23 Weld N-TH-A Coverage Breakdown WELD DESCRIPTION - 5.75 RPV CLOSURE HEAD (CH) VENT, HEAD-TO-NOZZLE WELD (SPARE) - WELD NO. N-TH-A Page 115
 
Figure 1-23 Weld N-TH-A Proposed Scan Coverage 60° RL Transverse Scans Page 116
 
Figure 1-23 Weld N-TH-A Proposed Scan Coverage 60° RL Perpendicular Scans Page 117
 
Figure 1-23 Weld N-TH-A Proposed Scan Coverage 45° S Transverse Scans Page 118
 
Figure 1-23 Weld N-TH-A Proposed Scan Coverage 60° S Transverse Scans Page 119
 
Flange Threads 18-32 Figure 1 RPV Threads in Flange Ref. MSK-3036 Page 120
 
1.24 RPV Flange Ligaments 18 Threads in Flange on 15 Stud Holes These 15 flange threads were examined using manual UT in Inspection Period 1 during RFO18 in 2008. The examination data for these 15 flange threads are in Data Report No. 08UT051. The Code Required Volume (CRV) was determined based on Figure IWB-2500-12 and the corresponding CRV as shown on this Figure is A-B-C-D. The Examination Code Coverage Obtained was 79.00%.
No recordable indications were detected and the exam was performed from the RPV flange surface and was limited due to the cladding on the inner portion of the flange and a seal ring groove on the outer portion of the flange.
These flange thread areas were previously examined in 1998 and no change was noted from the previous examination results contained in Data Report No. 98-JAF477-001 as compared with the results of the 2008 examination of this weld.
Page 121
 
Figure 1 Jet Pump Instrument Seal Welds Ref. MSK-3116 Page 122
 
1.25 Weld 4-02-2-117 - Jet Pump Instrument Safe End-to-Eccentric Reducer Weld This weld was examined twice during the 4th Interval using manual UT. First in Inspection Period 1 during RFO18 in 2008 and then in Inspection Period 3 during RFO21 in 2014 see Location Figure 1-5. The reason for the two examinations is because this weld is a Category D weld under the IGSCC program. The examination data for this weld is in Data Report Nos. 08UT059 for 2008 and ISI-VEN-14-004 for 2014. The Code Required Volume (CRV) for this weld was determined based on Examination Category B-J, Item No. B9.11 and requires the use of Figure IWB-2500-8(c), where the CRV is shown to be C-D-E-F. The Examination Code Coverage Obtained for both examinations was 75%.
No recordable indications were detected either in 2008 or 2014 and no axial exam was performed from the reducer side of the weld.
For the 2008 examination of this weld previous examination results from 1998 were reviewed as contained in Data Report No.
98-JAF-UT1-0 and no change was noted as compared with the results of the 2008 examination. For the 2014 examination of this weld the previous examination data was reviewed and no change was noted and no recordable indications were identified.
Page 123
 
Figure 1-25 Wall Thickness Profile Sheet Page 124
 
Figure 1-25 Weld Scan Plan for 4-02-2-117 Page 125
 
1.26 Weld N8B-SE Jet Pump Instrument Eccentric Reducer-to-Eccentric Reducer Weld This weld was examined twice during the 4th Interval using manual UT. First in Inspection Period 1 during RFO18 in 2008 and then in Inspection Period 3 during RFO21 in 2014 see Location Figure 1-5. The reason for the two examinations is because this weld is a Category D weld under the IGSCC program. The examination data for this weld is in Data Report Nos. 08UT057 for 2008 and ISI-VEN-14-006 for 2014. The Code Required Volume (CRV) for this weld was determined based on Examination Category B-J, Item No. B9.11 and requires the use of Figure IWB-2500-8(c), where the CRV is shown to be C-D-E-F. The Examination Code Coverage Obtained for both examinations was 75%.
No recordable indications were detected either in 2008 or 2014 and no axial exam was performed from the reducer side of the weld.
For the 2008 examination of this weld previous examination results from 1998 were reviewed as contained in Data Report No.
98-JAF-UT1-0 and no change was noted as compared with the results of the 2008 examination. For the 2014 examination of this weld the previous examination data was reviewed and no change was noted and no recordable indications were identified.
Page 126
 
Figure 1-26 Wall Thickness Profile Sheet Page 127
 
Figure 1-26 Weld Scan Plan for NBB-SE-1 Page 128
 
Figure 1 West CRD Scram Discharge Instrument Volume Tank Bottom Head-to-Shell Weld, Ref. MSK-3038 Page 129
 
1.27 Weld BH1-A - West CRD Scram Discharge Instrument Volume Tank A Bottom Head-to-Shell Weld This weld was examined using manual UT in Inspection Period 3 during RFO21 in 2014 and see Location Figure 1-6. The examination data for this weld is in Data Report No. ISI-UT-14-005. The Code Required Volume (CRV) was determined based on Figure IWC-2500-1(a) and the corresponding CRV as shown on this Figure is A-B-C-D. The Examination Code Coverage Obtained was 42.10%.
Examination of this weld yielded one recordable indication dispositioned as an isolated geometric root reflector (Inside diameter ID geometry) with no through wall extent.
Limitations from the shell side of the weld exist due to weldolets and support brackets and from the bottom head side of the weld due to the support brackets the configuration of the bottom head.
Page 130
 
Figure 1-27 Weld BH1-A, Scan Plan Upstream (US) Shell Side Downstream (DS)
Head Side Page 131
 
Figure 1-27 Weld BH1-A, Limitations Page 132
 
Figure 1-27 Weld BH1-A, Recordable Indication Isolated Geometric Reflector Upstream (US) Shell Side Downstream (DS) Head Side Page 133
 
Figure 1-27 Weld BH1-A, Recordable Indication Report Page 134
 
N7-A Limitation N3-A Figure 1 A RHR Heat Exchanger Nozzle-to-Head Weld, Ref. MSK-3037 Page 135
 
1.28 Weld N3-A - A RHR Heat Exchanger Nozzle-to-Head Weld This weld was examined using manual UT in Inspection Period 2 during RFO20 in 2012 and see Location Figure 1-7. The examination data for this weld is in Data Report No. ISI-UT-12-011. The Code Required Volume (CRV) was determined based on Figure IWC-2500-4(b) and the corresponding CRV as shown on this Figure is C-D-E-F. The Examination Code Coverage Obtained was 73.10%.
Additionally, this weld required a surface examination per Figure IWC-2500-4(b) on the exam surface A-B and was completed 100% with MT and documented in Data Report ISI-MT-12-005.
The UT examination of this weld yielded no recordable indications and the axial scan from the nozzle side of the weld was not performed due to the nozzle configuration with an additional area of 2 of weld length not examined on the head side of the weld because of an adjacent N7 nozzle.
Page 136
 
Figure 1-28 Weld N3-A, Coverage Breakdown and Scan Plan Upstream (US) Nozzle Side Downstream (DS) Head Side Page 137
 
12-02-2-61 Figure 1 Reactor Water Recirculation (RWR) N-2F Riser Sweepolet-to-Pipe Weld, Ref. MSK-3002 Page 138
 
1.29 Weld 12-02-2 RWR Sweepolet-to-Pipe Weld This weld was examined using manual UT in Inspection Period 1 during RFO19 in 2010 and see Location Figure 1-8. The examination data for this weld is in Data Report No. I-10UT-027. The Code Required Volume (CRV) was determined based on Figure IWB-2500-8(c) and the corresponding CRV as shown on this Figure is C-D-E-F. The Examination Code Coverage Obtained was 50.00%.
No recordable indications were detected and the exam was performed from the pipe side only due to the sweepolet-to-pipe configuration.
Page 139
 
Figure 1-29 Weld 12-02-2-61, 45°S and 70°S Coverage Diagram 70°S          45°S Page 140
 
Figure 1-29 Weld 12-02-2-61, 70°RL Coverage Diagram Page 141
 
12-02-2-78 Figure 1 Reactor Water Recirculation (RWR) N-2K Riser Sweepolet-to-Pipe Weld, Ref. MSK-3002 Page 142
 
1.30 Weld 12-02-2 RWR Sweepolet-to-Pipe Weld This weld was examined using manual UT in Inspection Period 1 during RFO18 in 2008 and see Location Figure 1-9. The examination data for this weld is in Data Report No. 08UT072. The Code Required Volume (CRV) was determined based on Figure IWB-2500-8(c) and the corresponding CRV as shown on this Figure is C-D-E-F and with an extended volume requirement as shown in Figure 4-11 of EPRI TR-112657. The Examination Code Coverage Obtained was 50.00%.
No recordable indications were detected and the exam was performed from the pipe side only due to the sweepolet-to-pipe configuration.
Page 143
 
Figure 1-30 Weld 12-02-2-78, 60°S and 70°RL Coverage Diagram Page 144
 
22-02-2-5 Figure 1 Reactor Water Recirculation (RWR) Pipe (Header)-to Sweepolet Weld, Ref. MSK-3001 Page 145
 
1.31 Weld 22-02-2 RWR Pipe (Header)-to-Sweepolet Weld This weld was examined using manual UT in Inspection Period 1 during RFO18 in 2008 and see Location Figure 1-10. The examination data for this weld is in Data Report No. 08UT071. The Code Required Volume (CRV) was determined based on Figure IWB-2500-8(c) and the corresponding CRV as shown on this Figure is C-D-E-F and with an extended volume requirement as shown in Figure 4-11 of EPRI TR-112657. The Examination Code Coverage Obtained was 50.00%.
No recordable indications were detected and the exam was performed from the pipe side only due to the pipe-to-sweepolet configuration.
Page 146
 
Figure 1-31 Weld 22-02-2-5, 45°S and 60°RL Coverage Diagram Page 147
 
22-02-2-11 Figure 1 Reactor Water Recirculation (RWR) Pipe (Header)-to Sweepolet Weld, Ref. MSK-3001 Page 148
 
1.32 Weld 22-02-2 RWR Pipe (Header)-to-Sweepolet Weld This weld was examined using manual UT in Inspection Period 1 during RFO19 in 2010 and see Location Figure 1-11. The examination data for this weld is in Data Report No. I-10UT-024. The Code Required Volume (CRV) was determined based on Figure IWB-2500-8(c) and the corresponding CRV as shown on this Figure is C-D-E-F and with an extended volume requirement as shown in Figure 4-11 of EPRI TR-112657. The Examination Code Coverage Obtained was 50.00%.
Two recordable indications were detected and the exam was performed from the pipe side only due to the pipe-to-sweepolet configuration. The indications were seen with 45°S and 60°S scans and were dispositioned as root geometry 360° intermittent.
Page 149
 
Figure 1-32 Weld 22-02-2-11, 45°S and 60°S Coverage Diagram Page 150
 
Figure 1-32 Weld 22-02-2-11, 60°RL Coverage Diagram Page 151
 
Figure 1-32 Weld 22-02-2-11, UT Indication Report Page 152
 
22-02-2-28 Figure 1 Reactor Water Recirculation (RWR) Cross-to-Pipe (Header) Weld, Ref. MSK-3001 Page 153
 
1.33 Weld 22-02-2 RWR Cross-to-Pipe (Header)-Weld This weld was examined using manual UT in Inspection Period 2 during RFO20 in 2012 and see Location Figure 1-12. The examination data for this weld is in Data Report No. ISI-UT-12-023. The Code Required Volume (CRV) was determined based on Figure IWB-2500-8(c) and the corresponding CRV as shown on this Figure is C-D-E-F and with an extended volume requirement as shown in Figure 4-11 of EPRI TR-112657. The Examination Code Coverage Obtained was 87.00%.
No recordable indications were detected and the exam was performed from both the pipe and cross side of the weld with limitations due to the weld configuration.
Page 154
 
Figure 1-33 Weld 22-02-2-28, 45°S and 60°S Coverage Diagram Page 155
 
Figure 1-33 Weld 22-02-2-28, 45°S, 60°S and 60°RL Coverage Diagram Page 156
 
22-02-2-29 Figure 1 Reactor Water Recirculation (RWR) Cross-to-Pipe (Header) Weld, Ref. MSK-3001 Page 157
 
1.34 Weld 22-02-2 RWR Cross-to-Pipe (Header)-Weld This weld was examined using manual UT in Inspection Period 2 during RFO20 in 2012 and see Location Figure 1-13. The examination data for this weld is in Data Report No. ISI-UT-12-024. The Code Required Volume (CRV) was determined based on Figure IWB-2500-8(c) and the corresponding CRV as shown on this Figure is C-D-E-F and with an extended volume requirement as shown in Figure 4-11 of EPRI TR-112657. The Examination Code Coverage Obtained was 87.00%.
No recordable indications were detected and the exam was performed from both the pipe and cross side of the weld with limitations due to the weld configuration.
Page 158
 
Figure 1-34 Weld 22-02-2-29, 45°S and 60°S Coverage Diagram Page 159
 
Figure 1-34 Weld 22-02-2-29, 45°S, 60°S and 60°RL Coverage Diagram Page 160
 
22-02-2-62 Figure 1 Reactor Water Recirculation (RWR) Pipe (Header)-to Sweepolet Weld, Ref. MSK-3002 Page 161
 
1.35 Weld 22-02-2 RWR Pipe (Header)-to-Sweepolet Weld This weld was examined using manual UT in Inspection Period 1 during RFO19 in 2010 and see Location Figure 1-14. The examination data for this weld is in Data Report No. I-10UT-025. The Code Required Volume (CRV) was determined based on Figure IWB-2500-8(c) and the corresponding CRV as shown on this Figure is C-D-E-F and with an extended volume requirement as shown in Figure 4-11 of EPRI TR-112657. The Examination Code Coverage Obtained was 50.00%.
No recordable indications were detected and the exam was performed from the pipe side only due to the pipe-to-sweepolet configuration.
Page 162
 
Figure 1-35 Weld 22-02-2-62, 45°S and 60°S Coverage Diagram Page 163
 
Figure 1-35 Weld 22-02-2-62, 60°RL Coverage Diagram Page 164
 
24-10-130 (Same Weld)
Figure 1 Residual Heat Removal (RHR) A Return Valve-to-Reducing Tee Weld, Ref. MSK-3013 and MSK-300 Page 165
 
1.36 Weld 24-10-130 - RHR Valve RHR-81A-to-Reducing Tee Weld This weld was examined using manual Phased Array UT in Inspection Period 1 during RFO19 in 2010 and see Location Figure 1-15. The examination data for this weld is in Data Report No. I-10VE-004. The Code Required Volume (CRV) was determined based on Figure IWB-2500-8(c) and the corresponding CRV as shown on this Figure is C-D-E-F and with an extended volume requirement as shown in Figure 4-11 of EPRI TR-112657. The Examination Code Coverage Obtained was 66.90%.
No recordable indications were detected and the exam was limited on the tee side of the weld due to the Valve-to-Tee configuration. A UT thickness examination identified a minimum wall thickness concern documented in CR-JAF-2010-05601 and CR-JAF-1010-05602 and this weld was weld overlaid in 2017.
Page 166
 
Figure 1-36 Weld 24-10-130, Phased Array UT Record Page 167
 
Figure 1-36 Weld 24-10-130, Phased Array UT Axial Examination Coverage Page 168
 
Figure 1-36 Weld 24-10-130, Phased Array UT Circumferential Examination Coverage Page 169
 
24-10-131 Figure 1 Residual Heat Removal (RHR) A Return Valve-AOV 68A-to-Valve RHR 81A Weld, Ref. MSK-3013 Page 170
 
1.37 Weld 24-10-131 - RHR Valve AOV 68A-to-Valve RHR 81A Weld This weld was examined using manual Phased Array UT in Inspection Period 1 during RFO19 in 2010 and see Location Figure 1-16. The examination data for this weld is in Data Report No. I-10VE-005. The Code Required Volume (CRV) was determined based on Figure IWB-2500-8(c) and the corresponding CRV as shown on this Figure is C-D-E-F and with an extended volume requirement as shown in Figure 4-11 of EPRI TR-112657. The Examination Code Coverage Obtained was 46.50%.
No recordable indications were detected and the exam was limited due to the Valve-to-Valve weld configuration.
Page 171
 
Figure 1-37 Weld 24-10-131, Phased Array UT Record Page 172
 
Figure 1-37 Weld 24-10-131, Phased Array UT Axial Examination Coverage Page 173
 
Figure 1-37 Weld 24-10-131, Phased Array UT Circumferential Examination Coverage Page 174
 
24-10-132 Figure 1 Residual Heat Removal (RHR) A Return Elbow-to-Valve AOV 68A Weld, Ref. MSK-3013 Page 175
 
1.38 Weld 24-10-132 - RHR Elbow-to-Valve AOV 68A Weld This weld was examined using manual Phased Array UT in Inspection Period 1 during RFO19 in 2010 and see Location Figure 1-17. The examination data for this weld is in Data Report No. I-10VE-001. The Code Required Volume (CRV) was determined based on Figure IWB-2500-8(c) and the corresponding CRV as shown on this Figure is C-D-E-F and with an extended volume requirement as shown in Figure 4-11 of EPRI TR-112657. The Examination Code Coverage Obtained was 50%.
No recordable indications were detected and the exam was limited due to the Elbow-to-Valve weld configuration and because the valve is made of Cast Stainless Steel.
Page 176
 
Figure 1-38 Weld 24-10-132, Phased Array UT Record Page 177
 
Figure 1-38 Weld 24-10-132, Phased Array UT Axial Examination Coverage Page 178
 
Figure 1-38 Weld 24-10-132, Phased Array UT Circumferential Examination Coverage Page 179
 
24-10-142 (Same Weld)
Figure 1 Residual Heat Removal (RHR) B Return Valve-to-Reducing Tee Weld, Ref. MSK-3013 and MSK-3002 Page 180
 
1.39  Weld 24-10-142 - RHR Valve RHR-81B-to-Reducing Tee Weld This weld was examined using manual Phased Array UT in Inspection Period 1 during RFO19 in 2010 and see Location Figure 1-18. The examination data for this weld is in Data Report No. I-10VE-002. The Code Required Volume (CRV) was determined based on Figure IWB-2500-8(c) and the corresponding CRV as shown on this Figure is C-D-E-F and with an extended volume requirement as shown in Figure 4-11 of EPRI TR-112657. The Examination Code Coverage Obtained was 66.90%.
No recordable indications were detected and the exam was limited on the tee side of the weld due to the Valve-to-Tee configuration.
Page 181
 
Figure 1-39 Weld 24-10-142, Phased Array UT Record Page 182
 
Figure 1-36 Weld 24-10-130, Phased Array UT Axial Examination Coverage Page 183
 
Figure 1-39 Weld 24-10-142, Phased Array UT Circumferential Examination Coverage Page 184
 
24-10-143 Figure 1 Residual Heat Removal (RHR) B Return Valve AOV 68B-to-Valve RHR 81B Weld, Ref. MSK-3013 Page 185
 
1.40 Weld 24-10-143 - Valve AOV 68B-to-Valve RHR 81B Weld This weld was examined using manual Phased Array UT in Inspection Period 1 during RFO19 in 2010 and see Location Figure 1-19. The examination data for this weld is in Data Report No. I-10VE-006. The Code Required Volume (CRV) was determined based on Figure IWB-2500-8(c) and the corresponding CRV as shown on this Figure is C-D-E-F and with an extended volume requirement as shown in Figure 4-11 of EPRI TR-112657. The Examination Code Coverage Obtained was 46.50%.
No recordable indications were detected and the exam was limited due to the Valve-to-Valve weld configuration.
Page 186
 
Figure 1-40 Weld 24-10-143, Phased Array UT Record Page 187
 
Figure 1-40 Weld 24-10-143, Phased Array UT Axial Examination Coverage Page 188
 
Figure 1-40 Weld 24-10-143, Phased Array UT Circumferential Examination Coverage Page 189
 
24-10-144 Figure 1 Residual Heat Removal (RHR) B Return Elbow-to-Valve AOV 68B Weld, Ref. MSK-3013 Page 190
 
1.41 Weld 24-10-144 - RHR Elbow-to-Valve AOV 68B Weld This weld was examined using manual Phased Array UT in Inspection Period 1 during RFO19 in 2010 and see Location Figure 1-20. The examination data for this weld is in Data Report No. I-10VE-003. The Code Required Volume (CRV) was determined based on Figure IWB-2500-8(c) and the corresponding CRV as shown on this Figure is C-D-E-F and with an extended volume requirement as shown in Figure 4-11 of EPRI TR-112657. The Examination Code Coverage Obtained was 50%.
No recordable indications were detected and the exam was limited due to the Elbow-to-Valve weld configuration and because the valve is made of Cast Stainless Steel.
Page 191
 
Figure 1-41 Weld 24-10-144, Phased Array UT Record Page 192
 
Figure 1-41 Weld 24-10-144, Phased Array UT Axial Examination Coverage Page 193
 
Figure 1-41 Weld 24-10-144, Phased Array UT Circumferential Examination Coverage Page 194
 
20-10-923 Figure 1 Residual Heat Removal (RHR) Elbow-to-Valve MOV-13A Weld, Ref. MSK-3010 Page 195
 
1.42 Weld 20-10-923 - RHR Elbow-to-Valve MOV-13A Weld This weld was examined using manual UT in Inspection Period 3 during RFO22 in 2016 and see Location Figure 1-21. The examination data for this weld is in Data Report No. ISI-UT-16-001. The Code Required Volume (CRV) was determined based on Figure IWC-2500-7(a) and the corresponding CRV as shown on this Figure is C-D-E-F with an extended volume on the elbow side of the weld of 1/2 from Note (1) of Table 1, of ASME Code Case N-578-1. The Examination Code Coverage Obtained was 80.55%.
One recordable indication was identified and dispositioned as inside diameter root geometry observed 360° intermittently. This was a single side examination with a CRV circumferential scan limitation due to the valve configuration on the valve side of the weld.
Page 196
 
Figure 1-42 Weld 20-10-923, Thickness and Weld Contour Diagram Page 197
 
Figure 1-42 Weld 20-10-923, 45°S, 60°S and 70°S Scan Coverage Diagram Page 198
 
Figure 1-42 Weld 20-10-923, Circumferential Scan Coverage Limitation Diagram Page 199
 
Figure 1-42 Weld 20-10-923, 60°S Axial Scan Indication Diagram Page 200
 
Figure 1-42 Weld 20-10-923, 60°S Axial Scan Indication Report Page 201}}

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