JAFP-09-0008, Response to Request for Additional Information Regarding: Request for Additional Information Third Ten-Year Inservice Inspection Interval Program Plan Relief Request RR-CRV-01
| ML090270450 | |
| Person / Time | |
|---|---|
| Site: | FitzPatrick  |
| Issue date: | 01/20/2009 |
| From: | Joseph Pechacek Entergy Nuclear Northeast, Entergy Nuclear Operations |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| JAFP-09-0008, RR-CRV-01, TAC MD8717 | |
| Download: ML090270450 (104) | |
Text
Entergy Nuclear Northeast Entergy Nuclear Operations, Inc.
James A. Fitzpatrick NPP
-- Entergy P.O. Box 110 Lycoming, NY 13093 Tel 315-342-3840 January 20, 2009 JAFP-09-0008 U.S. Nuclear Regulatory Commission Document Control Desk Washington, D. C. 20555
Subject:
Entergy Nuclear Operations, Inc.
James A. FitzPatrick Nuclear Power Plant Docket No. 50-333 License No. DPR-59 James A. FitzPatrick Nuclear Power Plant - Response to Request For Additional Information Regarding: Request For Additional Information Re:
Third Ten-Year Inservice Inspection Interval Program Plan Relief Request RR-CRV-01 (TAC NO. MD8717)
References:
- 1) Entergy Letter, JAFP-08-0038, James A. FitzPatrick Nuclear Power Plant Inservice Inspection Program Relief Requests Third Ten-year Interval Closeout (TAC No. MD8717), dated April 30, 2008.
- 2) USNRC Letter, James A. FitzPatrick Nuclear Power Plant - Response to Request For Additional Information Regarding: Request For Additional Information Re: Third 10-Year Inservice Inspection Interval Program Plan Relief Request RR-CRV-01 (TAC NO. MD8717), dated November 19,'2008.
Dear Sir or Madam:
Entergy Nuclear Operations Inc., (ENO) submitted James A. FitzPatrick Nuclear Power Plant Inservice Inspection Program Relief Requests Third Ten-year Interval Closeout. dated April 30, 2008 [Reference 1]. Subsequently ENO received James a. Fitzpatrick Nuclear Power Plant - Request for Additional Information Re: third 10-year Inservice Inspection Interval Program Plan Relief Request RR-CRV-01 (TAC No. MD8717), dated November 19, 2008
[Reference 2]. Enclosure 1 provides the ENO responses to those RAIs.
JAFP-09-0008 Page 2 of 2 There is no new commitment made in this letter.
If you have any questions or require additional information, please contact Mr. Joseph Pechacek, Licensing Manager, at 315-349-6766.
Sincerely, f4 - rXN 6,rO R*
Joseph Pechacek Licensing Manager Enclosure 1: Response To Request For Additional Information Regarding The Third 10-Year Inspection Interval Request For Relief RR-CRV-01 JP/ed cc:
Mr. Samuel J. Collins, Regional Administrator Mr. Bhalchandra Vaidya, Project U.S. Nuclear Regulatory Commission, Region Manager 475 Allendale Road Plant Licensing Branch King of Prussia, PA 19406-1415 U.S. Nuclear Regulatory Commission Mail Stop O-8-G14 Office of NRC Resident Inspector Washington, DC 20555 James A. Fitzpatrick Nuclear Power Plant P.O. Box 136 Mr. Paul Eddy Lycoming, New York 13093 New York State Department of Public Services Mr. Paul Tonko, President 3 Empire State Plaza New York State Energy Research and Albany, New York 12223-1350 Development Authority 17 Columbia Circle Albany, New York 12203-6399
JAFP-09-0008 Enclosure 1 RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION REGARDING THE THIRD 10-YEAR INSPECTION INTERVAL REQUEST FOR RELIEF RR-CRV-01, Dated 4130/08 ENTERGY NUCLEAR OPERATIONS, INC.
JAMES A. FITZPATRICK NUCLEAR POWER PLANT DOCKET NO. 50-333
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 1 of 101 Response to Request for Additional Information Regarding the Third 10-Year Inspection Interval Request for Relief RR-CRV-01, Dated 4/30/08 (TAC.MD 8717)
Entergy Nuclea'r Operations, Inc. ("Entergy") submitted Request for Relief RR-CRV-01 on April
.30, 2008 ("Relief Request") pursuant to the requirements of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code ("ASME Code"), Section Xl, "Rules for Inservice Inspection of Nuclear Power Plant Components". The Relief Request was submitted in accordance with 10 CFR.50.55a(g)(5)(iii) and (iv) for NRC evaluation in accordance with 10 CFR 50.55a(g)(6) and applies to the third 10-year Inservice Inspection Interval. Request for Additional Information (TAC NO. MD8717), dated November 19, 2008, ("RAI") was issued by the NRC in reply to the Relief Request. The information requested by the NRC is restated below in bold text followed by the responses assembled by Entergy.
- 2. REQUEST FOR ADDITIONAL INFORMATION 2.1 Request for Relief RR-CRV-1 (Part A), ASME Code,Section XI. Examination Category B-A., Items B 1.21 and B1.22, Reactor Pressure Vessel (RPV) Bottom Head Welds The licensee has requested relief from examining 100% of the ASME Code-required volumes for Welds VC-BH-2-3 & W-BH-2A thru 2F. The licensee has indicated that no coverage or examination of these welds is possible for the following reasons.
Access to the area is limited to four 18" diametermanways 900 apartin the vessel support skirt. In addition,the one hundred and thirty-seven (137) control rod drives and forty-three (43) in-core monitor instrumentationpenetrationspresent extensive interference.
The positioningand spacing of these components prevent an inspectorfrom physically being able to reach them and limits the surface distance requiredto perform the examination (referenceattachedphotographdepicting configuration).
This combined with the curvature of the bottom head and the Bioshield wall narrowingin this areaprecludes access. Permanentvessel insulationand limited storage space for those insulationpanels which require removal is extremely limited based on the size of the manways, The ASME Code requires that essentially 100% of the accessible length of the subject welds be examined. However, the licensee has stated that there has been no volumetric examination of the accessible portions of the subject welds. In the relief request, the licensee does not adequately demonstrate impracticality of examination for these welds. The relief request contains copies of photographs of the area below the.RPV; however, the copies contained in the electronic file are of poor quality and cannot be used to. determine accessibility to the subject welds.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 2 of 101
- a. Please provide a detailed description to clarify the interferences caused by the control rod drive housings and in-core instrument nozzles.
Response
Figure 1 is provided as a sketch of the limiting conditions under the vessel in the skirt area. Circumferential weld VC-BH-2-3 (dollar plate weld) and meridian welds VV-BH-2A through 2F are located within the vessel skirt.
There are 4-18" manways located at GE 0°, 90', 1800, 2700 allowing limited access to the area. The one hundred and thirty-seven (137) control rod drives (CRD) and forty-three (43) in-core monitoring instrumentation penetrations present extensive interference. The 6" CRD penetrations are centered at 1 foot intervals and there is less than a 1 foot clearance to the Vessel Skirt and the peripheral mirror insulation.
Interferences do not allow entry into the vessel skirt area, access to the skirt area is limited to the areas that can be reached from the manways or through the use of remote automated equipment.
Circumferential weld VC-BH-2-3 is the RPV Bottom Head dollar plate weld and is located approximately 3 feet from the vessel skirt openings. This weld is not accessible for examinations without remote equipment.
VV-BH-2A through 2F are (6) meridianal welds between VC-BH-2-3 and VC-BH-1 -2.
The welds are located 60 degrees apart and do not coincide with the manway locations of 00, 900, 1800, 2700. Welds VV-BH-2A and VV-BH-2D are adjacent the 0 and 180 degree manways and are the closest welds for accessibility. The remaining welds are not near manways and are not accessible for examinations without remote equipment.
Figures 2, through 5 are pictures attached to clarify conditions in this area. The area between the outermost CRD penetration and the skirt attachment weld (approximately 6-10 inches) for VV-BH-2A and VV-BH-2D appear to be partially accessible from one side (the welds are offset from the manway). Examination of the welds was attempted in R16 and R17 by two different vendors to obtain the less than 5% expected weld coverage that may have been possible. With the limited one sided access involved, a 14" scan path necessary to achieve coverage to the ID and CRD penetration interferences; both vendors identified the welds as inaccessible for a viable UT examination. Figures 6 and 7 are the reports documenting the attempts made.
- b. Also include readable photographs or sketches in order to clarify the basis to demonstrate the reason why it is impractical to access the subject welds from the outside surface of the RPV.
Response
Figures 1 through 5 have been provided, in addition to the narrative above for clarification.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 3 of 101
- c. In addition, please confirm that circumferential weld VC-BH-1-2 was volumetrically examined and that the examinations met ASME Code requirements.
Response
Circumferential weld VC-BH-1-2 was examined in R16 and R17 (50% each outage)
,achieving greater than 90% code coverage utilizing Performance Demonstration Initiative (PDI) examination techniques. No relief for this weld is required or requested.
- d. The staff has noted that other licensees with similar vintage plants have been able to inspect the accessible portion of the subject welds either from the outside surface of the RPV, or through the use of remote inspection devices applied from the inside surface of the RPV. Discuss whether new technologies have been considered, e.g., robotic tools, applied from the inside of the RPV, which would allow examinations of the subject welds to occur.
Response
Incidental examination coverage of a portion of welds VV-BH-2A through 2F is achieved during the examination of circumferential weld VC-BH-1 -2. Scanning of the circumferential weld extends to the skirt for the extent possible in order to achieve code coverage of the weld. The accessible weld length within the 1/22t examination boundary of the circumferential weld could be credited towards the meridianal welds. This was found to be the case at one of our sister plants (Cooper Station) while benchmarking the question. The coverage credited at Cooper Station for the meridianal welds (= 2") is based on examination of circumferential weld on the outside of the skirt; no examinations are performed from within the skirt area. While benchmarking Brunswick Station (sister plant), the coverage credited for the meridiahal welds is based on examination outside of the skirt area (note: Brunswick's meridianal welds extend-further outside of the skirt area than James A. FitzPatrick (JAF)), no examinations are performed from within the skirt area. JAF has not taken credit for any incidental coverage; however, examination of the welds from the outside of the skirt area has been performed to the extent possible through the examination of circumferential weld VC-BH-1-2.
Examination from the inside of the Reactor Pressure Vessel (RPV) is not a known alternative. There are no known Boiling Water Reactors (BWR) plants performing this examination below the Core Plate (Electric Power Research Institute (EPRI) contacted).
If new technologies are developed for this type of examination, JAF will consider the application along with the risk of using the tooling in the vessel region.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 4 of 101 Automated tooling and examination from the Outside Diameter (OD) are more likely to be developed for BWR's. Discussions with EPRI provided no known contractors currently performing Automated OD vessel examinations in the Control Rod Drive Mechanism (CRDM) area. Until automated tooling is developed providing adequate access for appropriate detection and evaluation of indications in this region, JAF considers examination in this region to be completed to the extent possible. For examinations within the skirt area, there is currently insufficient access to examine or allow interpretation of results (confirmation) in accordance with current PDI requirements.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 5 of 101 Figure 1 Sketch of Bottom Head Configurations I
Approximate location of circumferential weld VC-BH i
- 2. Greater than 90% coverage achieved with PDI methods, no relief requested. EEI L 137 Control Rod Drive Housings (6" diameter).
I Skirt insulation package Approximate location of dollar interference plate weld (VC-BH-2-3) z 46" 360 degrees radius Longitudinal welds (VV-BH-2A through 2F are located between the dollar plate weld (VC-BH-2-3) and circumferential weld VC-BH-1-2. The 6 welds are located 60 degrees apart and do not coincide with the man way locations of 00, 900, 180', 2700. Inside the skirt there is approximately a 1 foot clearance to the CRD housings.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 6 of 101 Figure 2 Picture of Vessel Skirt Access Manway, Insulation Obstruction.
and Proximity of CRD Housings 6" CRDM
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 7 of 101 Figure 3 Picture of Vessel Skirt Weld to Outer*CRD Housings
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 8 of 101 Figure 4 Picture of Vessel Skirt Weld to Outer CRD Housings Including Inner Skirt Insulation Package.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 9 of 101 Figure 5 Picture of an Arms Reach to the"Vessel Adjacent the Meridianal Weld and Extent of Weld Prep that was Performed.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 10 of 101 Figure 6 Copy of R16 NDE Report Attempting Examination.
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 11 of 101 Fiqure 7 Copy of R17 NDE Report Attempting Examination.
(GE ENERGY NUCLEAR Site/Unit. James A. FitzPatrick/ I Ultrasonic Calibration and Examination Record RPV Components Data Report Number. 06UT153. inearity Sheet: W/A I
Outage: R-17 Data Sheet Number D-0. 9 Procedure: GE-UT-300 Rev.: V1/0 DRIR: WA Calibration Block: NIA Search Unit Data.
MA WA MWActNuer N/A Material Size Thickness Manufacturer Serial Number Size I Shape:
Initial Cal: bVA Exam Start V41A IA &NA AeM JA Cat Check. WAV Exam End NAPl Incident Point Nominal Angle: Measured Angle:
Cal Check. WA WA Couplant: %AIN Batch *aI* PF/A N/A NA Final Cal: WA. Freqluency: Model: Mode:
Thermometer Initial Cal Temp. Final Cat Temp: Search Unit Cable DAC Construction NIA N/A IWA Cable Type: Length: Connectors:
Reflector Hole Gain Max '*W Sweep Screen I' Depth 0 1X Amp Dim. Div.
Instrument Settings MA lX W WA WA A WA NIA WA lX WVA NA NA -WA MaufactureriModet: Serial Number, WA M__ Ix &A WA MA WA O,0 u 0.0 inuPsec. NIA WA iX WA NA NA NA DelayFZero: Velocity: Narrowband Filter M_A 1X lX &AI WA WA Nip WA NIA tIA Rep Rate: Rectification: Range: Pulser DAC 1X= N/A \
WA NIA Sweep 0-10 AV N/A Damping: Reject: Frequency: Mode:
Note: NAVdB difference between 3/8 and 5/8 Vee 9&f CSC DAC: TVG: CSC: DGS:
Exam Data for Weld: VV-BH-2(A-F)
MeridionaBotom Hesa Configuration: Calibration Verification WA Field Simulator Block S/N: NIA Exam Surface: Component Temperature Weld Exam Access Scan Recordabla Exam Reflector N A dB Indications Angle Amplitude I WA 7 W Examination Area:
WA* WA WA* WA WA Gain (ds) 1 / .WA/7 7/i
&A NA WA WA WAA VA WA WA M N&A- Acceptable Linearity performed:
N/A N/A WA M WAM Comments: Cal/Exam Date is the date of initial calibration.
Exam not performed due to proximity of CRD Housings.
Michael Riccardto ft 1W12Q rQL~~
Initials: Examiner Level Cal/Exam Date: Utility R ad L . Date:
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 12 of 101 2.2 Request for Relief RR-CRV-1 (Part B). ASME Code, Section Xl, Examination Category B-D, Item B3.90, Full Penetration Welded Nozzles in Vessels.
The licensee has included multiple RPV nozzle-to-shell and nozzle-to-head welds in the subject relief request. Several axial and circumferential coverage calculations and related sketches depicting angle beam orientations for coverage areas are included in the licensee's submittal. However, in many of the licensee's sketches, it is unclear which portion and how much of the ASME Code-required volumes have been completed.
- a. Please re-submit cross-sectional drawings showing volume coverage for each of the ultrasonic angles applied.
- b. Include written descriptions of the ASME Code-required volumes and areas of completed coverage for each of the techniques (near surface, inner 15%,
and full volume) used on these welds.
- c. Summarize scanning directions and techniques,
- d. List the materials for the base materials and welds and;
- e. State whether any reportable indications were detected during the examinations.
- f. The licensee has provided some limited drawings depicting interferences from insulation brackets and rings and proximity of mirror insulation that cause scanning difficulties. However, no discussion of why this insulation cannot be removed is given. Please discuss whether the limited examinations caused by interference from insulation cannot be remedied by removal of the subject insulation and supporting appurtenances.
- g. Clarify whether the methods used to examine each of the RPV nozzle-to-shell or head welds have been qualified in accordance with performance demonstration requirements per ASME Code,Section XI, Appendix VIII.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 13 of 101
Response
A detailed narrative description identifying the examination requirements, limiting conditions, materials, volume coverage and the results for each nozzle examined has been provided below correlating with the component identification.
The drawings submitted in the Relief Request have been enhanced and show volume coverage for each direction of the ultrasonic examination. ASME Code-required volumes and areas of completed coverage for the near surface, inner 15%, and full volume have been provided for PDI applicable weld examinations. The drawings summarize scanning directions and techniques and provide additional details related to examinations limitations by permanent interferences such as insulation support rings, support brackets, etc.
The following narratives and figures should clarify conditions and circumstances for which relief is sought.
The following table identifies the contents of Section 2.2 of this RAI Response Component ID Limiting Condition Reference Figure(s)
N-TH-A OD Blend Radius Figure 8 N-TH-B OD Blend Radius Figure 9 N-TH-C OD Blend Radius Figure 10 OD Blend Radius & Insulation Support Figure I1 N-IA Ring and Bracket OD Blend Radius & Insulation Support Figure 12 N-IB Ring and Bracket OD Blend Radius & Insulation Support Figure 13 N-2A, B, E, H & K Ring and Bracket OD Blend Radius & Insulation Support Figure, 14 N-2C, D, G & J Ring and Bracket OD Blend Radius & Insulation Support Figure 15 N-2F Ring and Bracket Figure 16 N-3A & B OD Blend Radius Figure 17 N-3C & D OD Blend Radius Figure 18 N-4A & C OD Blend Radius & Nozzle Obstruction Figure 19 N-4B &D OD Blend Radius OD Blend Radius & Insulation Support Figure 20 N-5A Ringand Bracket OD Blend Radius & Insulation Support Figure 21 N-5B Ring and Bracket OD Blend Radius & Permanent Figure 22 N-8B Insulation OD Blend Radius & Insulation Support Figure 23 N-9 Ring
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 14 of 101 Component'ID: N-TH-A
- (
Component
Description:
Weld N-TH-A is a RPV Top Head-to-Nozzle weld that is located on the side of the RPV head dome.
Materials: Base metal materials are carbon steel material. RPV material is A-508-64 Class 2 and nozzle material is A508 Class 2.
Examination Requirements: Section XI Appendix VIII requirements were not applicable at the time of this inspection. A full volume examination was conducted in accordance with the requirements of ASME Code Section Xl, 1989 Edition, no Addenda.
Limitinq Conditions: The nozzle radius restricts the transducer movement when scanning perpendicularly and circumferentially impeding volume coverage.
Calculated Volume Coveraqe: This examination was conducted to the maximum extent possible.
Coverage Achieved:
Composite Coverage Full Volume = 27.3%
Examination Results: No relevant indications requiring IWB 3000 evaluations were identified.
References:
Relief Request Attachment 2A and Figure 8 below.
Figure 8 includes sketches and calculations for code required coverage and also illustrates limiting conditions.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 15 of 101 Figure 8 N-TH-A -RPV Top Head-to-Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 1 of 2 9' 64 If
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 16 of 101 Figure 8 N-TH-A - RPV Top Head-to-Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 2 of 2
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 17 of 101 Component ID: N-TH-B Component
Description:
Weld N-TH-B is a RPV Top Head-to-Nozzle weld that is located top dead center on the RPV head dome.
Materials: Base metal materials are carbon steel material. RPV material is A-508-64 Class 2 and nozzle material is A508 Class 2.
Examination Requirements: This examination was conducted in accordance with the criteria of ASME Code Section Xl, Appendix VIII with personnel, procedures and equipment qualified through the PDI process.
Limitina Conditions: The nozzle radius restricts the transducer movement when scanning perpendicularly and circumferentially impeding volume coverage.
Calculated Volume Coveraqe This examination was conducted to the maximum extent possible.
K Coverage Achieved:
Near surface = 11.5%
Supplement 6 coverage = 67.5%
Supplement 4 coverage (inner 15%) = 0% (non-clad)
Composite Coverage = 79%
Examination Results: No relevant indications requiring IWB 3000 evaluations were identified.
References:
Relief Request Attachment 2B and Figure 9 below.
Figure 9 includes sketches of weld N-TH-B that illustrate limiting conditions.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 18 of 101 Figure 9 N-TH-B - RPV Top Head-to-Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 1 of 3 FitzPatrick / R-17 Weld N-TH-B Top Head Vent Fall 2006 CODE CROSS-SECTIONAL AREA TOTAL CODE-COVERAGE percent Weld Length = 380. Requlred Exam Area Scanned of Area Weld Length Percent Exam.Volume= 32.2 Area Sq. In. Manual Manual. Manual Manual 60, NS T-Scan A 9.8. 4.3 13.4% 360 617'%
60- S6 T-Scan A 22.4 22,3 69,3% 360 34.6%
6,* S4 T-Scan A 0.0 o0o 0.0% 360 0.0/0 3.1 I 96% 1 360 1 4.8%
60' NS P-Scan I A 1 9.8 1 60o S6 P-Scan I A1 22.4 21.2 65.8% 360 32ý9%
60° S4/IRS Scan A 0.0 0.0 0.0% 360 0.0%
60* NS T-Scan III 60' S6 T-Scan 60' 54 T-Scan 60* NS P-Scan
- 60. $V P-Scan 60'S4I1RSScan
% Total Composite Coverage = 79.0%
aommnents: A - Scanning limited due to nozzle configuration.
INole- Rounding methods may affect calculated values.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 19 of 101 Figure 9 N-TH-B - RPV Top Head-to-Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 2 of 3 FitzPatrick, R-1 7 Top Head Vent Nozzzle Weld N-TH-B 60' NS Exam Volume = 9.8 Sq. In.
600 FV Exam Volume = 22.4 Sq. In.
..60. (Inner. 15% T).Exam Volume .. N/A non-dad ..........
600 NS Coverage achieved 4.3 Sq. In.
60' FV Coverage achieved 22.3 Sq. In.
60' (Inner 15% T) Coverage achieved = N/A non-clad 60°T 607T I
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 20 of 101 Figure 9 N-TH-B - RPV Top Head-to-Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 3 of 3 FitzPatrick, R- 17 Top Head Vent Nozzzle Weld N-TH-B 60' NS Exam Votume = 9.8 Sq. In.
600 FV Exam Volume = 22.4 Sq. In.
600 (Inner 15% T) Exam Volume = N/A non-clad 60' NS Coverageachieved= 31 Sq. In.
600 FV Coverage achieved = 21.2 Sq. In.
600 (Inner 15% T) Coverage achieved = N/A non-clad q
60°P ri Scans I 60°P I
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 21 of 101 Component ID: Ný-TH-C Component
Description:
Weld N-TH-C is a RPV Top Head-to-Nozzle weld that is located on the side of the RPV head dome.
Materials: Base metal materials are carbon steel material. RPV material is A-508-64 Class 2 and nozzle material is A508 Class 2.
Examination Requirements: This examination was conducted in accordance with the criteria of ASME Code Section Xl, Appendix VIII with personnel, procedures and equipment qualified through the PDI process.
Limitinq Conditions: The nozzle radius restricts the transducer movement when scanning perpendicularly and circumferentially impeding volume coverage.
Calculated Volume Coveraae This examination was conducted tothe maximum extent possible. The calculated volume coverage for near-surface, inner 15% and full volume obtained during the inspection are included below.
Coverage Achieved:
Near surface = 5.5%
Supplement 6 coverage = 51.9%
Supplement 4 coverage (Inner 15%) = 0 (non-clad)
Composite Coverage = 57.3%
Examination Results: No relevant indications requiring IWB 3000 evaluations were identified.
References:
Relief Request Attachment 2C and Figure 10 below.
Figure 10 includes sketches of weld N-TH-C that illustrate the limiting conditions that affect examination coverage.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 22 of 101 Figure 10 N-TH-C - RPV Top Head-to-Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 1 of 3 FitzPatrick I R-17 Weld N-TH-C Top Head Instrumentation Nozzle Fall 2006 CODE CROSS-SECTIONAL AREA TOTALCODE COVERAGE Percent Weld Length = 360. Required Exam Area Scanned of Area Weld Length Percent Exam Volume = 37.8 Area SqIn.. Manual Manual Manual Manual 60° NS T-Scan I A I22< 2-4 6,4% 360 329/6 60 6 T-$Scan A 25.2. 23.0 61.3% 360 30.7%
60S"4 T-Scan:' A ' 00 '00 0.0 0 0.0%
.60? N&P-Scaf*t A ........ ... ............ 5 , 360...........3% ..............
60' S6 P-Scan A 25.2 15.9 42.4% 360 21.2%
60oS41IRS Scan A 00.0 1 0.0 0.0% 0 0.0%
60"NS T--Sn ' .
600S6 T-Scar 1 i 600S4 T-Scan I 60, NS P-S , ,,
600 S6 P-Scan 60'S4'IRS Scan ' '
% Total Composite Coverage 57:3%
Cromments: A - Scannig limited due to nozzle configurmaton.
Note - Rounding methods may affect calculated values,
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 23 of 101 Figure 10 N-TH-C - RPV Top Head-to-Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 2 of 3 FitzPatrick, R-17 N -TH - C Top Head Instrumentation 600 NS Exam Volume = 12.3 Sq. In.
600 FV Exam Volume = 25.2 Sq. In.
600 (Inner 15% T) Exam Volume = N/A non-clad 60' NS Coverage achieved = 2.4 Sq. In.
60° FV Coverage achieved = 23.0 Sq. In.
600 (Inner 15% T) Coverage achieved = N/A non-clad T-Scans 60'T f
60°T
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 24 of 101 Figure 10 N-TH-C - RPV Top Head-to-Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 3 of 3 FitzPatrick, R-177 N -TH - C Top Head Instrumentation 600 NS Exam Volume = 12.3 Sq. In.
60° FV Exam Volume = 25.2 Sq. In.
600 (Inner 15% T) Exam Volume = N/A non-clad 60° NS Coverage achieved 1.7 Sq. In.
60' FV Coverage achieved =15.9 Sq. In.
600 (Inner 15% T) Coverage achieved = N/A non-clad P-Scans 60-p II 60°P
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 25 of 101 Component ID: N-1A Component
Description:
Weld N-1A is a Recirculation Outlet RPV nozzle weld Examination ReQuirements: This examination was conducted in accordance with the criteria of ASME Code Section Xl, Appendix VIII with personnel, procedures and equipment qualified through the PDI process.
Materials: Base metal materials are carbon steel material. RPV material is A-508-64 Class 2 and nozzle material is A508 Class 2.
Limiting Conditions: The nozzle radius restricts the transducer movement when scanning perpendicularly and circumferentially impeding volume coverage. Additional restrictions are a permanently mounted insulation ring and bracket.
Calculated Volume Coveraae This examination was conducted to the maximum extent possible. The calculated volume coverage for near-surface, inner 15% and full volume obtained during the inspection are included below.
Coverage Achieved:
Near surface = .9%
Supplement 6 coverage = 30%
Supplement 4 coverage (Inner 15%) = 9.8%
Composite Coverage = 40.6%
Examination Results: No relevant indications requiring IWB 3000 evaluations were identified.
References:
Relief Request Attachment 3A and' Figure 11 below.
Figure 11 includes sketches of weld N-1A that illustrate the limiting conditions which affect examination coverage. The additional restrictions including a permanently mounted insulation ring and bracket are also depicted in Figure 11.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 26 of 101 Figure 11 N-1 A - RPV Recirculation Outlet Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 1 of 5 Weld N-IA Recircuiation Outlet Fall 2006 CODE COVERAGE COOE CROSS-SECTIONAL ARFA1 i ~Percent TOTAL t Weld Length a 360. Required Exam Area Scanned of Area Weld ILength Percent Exam Volume = 69.4 Area Sq. In. Manual Manual Manual Manual 60NS Tcan - A] 20:5 0.8 1.2%: 306 0.5%
60'S6T-wScan A 40.6 j 27.5 39.6% 36 16.8%
6V$- A 8-3 1 8,3 12.0% 3Q65%
6' NsP-Scan A 20.5 0.4 - 06% . 30 - 03%
60 S8 P-Scan A 40.6 14.6 21.0% 36 . 0%
.60! SWIRS Sdh A - 83 5.8 8.4% 380 4;2%
'301NST-Scan B 05 ... 0.8 4 0.1%
80' 66 T-s, Ia 40., 24.7 35.6%T 54 2.7%
6Q's$4TýScan IB 8 3. 4.2 6.1%,:. 54 0.5%
60WK~s p-Scan I
60'*4tRS Scnn I *
%Ttal Composite Coverage.= 40.6%
Ccmmes..
A Scanning due nozzle rtmited tc tortmgUyatior.h B
- canqing was restricted due to tthe proximity of the insulation bfacket and sinapofl 0fl9
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 27 of 101 Figure 11 N-1 A - RPV Recirculation Outlet Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 2 of 5 FitzPatrick R- 17 N1 A Nozzle Recirculation Outlet Insulation support ring Scan was restricted due to the proximity of the insulation support ring and bracket.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 28 of 101 Figure 11 N-1 A - RPV Recirculation Outlet Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 3 of 5 CU)
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Enclosure 1, Docket No. 50-333 JAFP-09-0008 Page 29 of 101 Figure 11 N-1 A - RPV Recirculation Outlet Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 4 of 5 Cl,
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 30 of 101 Figure 11 N-1 A - RPV Recirculation Outlet Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 5 of 5 U
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 31 of 101, Component ID: N-1B Component
Description:
Weld N-1 B is a Recirculation Outlet RPV nozzle weld.
Examination Requirements: Section Xl Appendix VIII requirements were not applicable at the time of this inspection. A full volume examination was conducted in accordance with the requirements of ASME Section Xl, 1989 Edition, no Addenda.
Materials: Base metal materials are carbon steel material. RPV material is A-508-64 Class 2 and nozzle material is A508 Class 2.
Limiting Conditions: The nozzle radius restricts transducer movement when scanning perpendicularly and circumferentially impeding volume coverage. Approximately 16% of full volume coverage was not achieved due to the lack of removal of the lower portion of mirror insulation. Removal of the insulation would have required demolition and the insulation was treated as an obstruction at the time of examination. A similar situation existed for the N1A window during vessel weld examinations in R14 in which the insulation was cut out of the N1A window and planned replacements installed.
Since the insulation was removed and replaced prior to examination of the N-1A nozzle to vessel weld in R17, the maximum coverage (approximately 40%) was achieved during the examination of the nozzle using Appendix VIII examination techniques.
Calculated Volume Coveraqe: This examination was conducted to the extent possible without demolition of the insulation and relief is requested for the examination performed. The calculated volume coverage is detailed below.
Coverage achieved = full volume 23.9%
Examination Results: No relevant indications, requiring IWB 3000 evaluations were identified.
References:
Relief Request Attachment 3B and Figure 12 below.
Figure 12 includes sketches of weld N-1B that illustrate the limiting configuration and conditions that impacted the examination coverage.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 32 of 101 Figure 12 N-1 B - RPV Recirculation Outlet Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 1 of 6 Typical Calculation for Code Required Volume For Ni Recirculation Outlet Nozzles Exam Coverage Exam Coverage Code Required Achieved Not Achieved 00 9.0% 24% 33%
450 & 600 5.9% 27.1% 33%
Ax. Scans 450 & 600 9.0% 24% 33%
Circ. Scans 23.9% = Total Percentage of Code Required Volume Achieved
- Note: Calculations for 450 & 60' Ax Scans exam. Covered not achieved.
Included limited coverage due to OD nozzle blend radius geometry. Limited coverage due to mirror insulation.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 33 of 101 Figure 12 N-1 B - RPV Recirculation Outlet Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 2 of 6
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 34 of 101 Fiqure 12 N-1 B - RPV Recirculation Outlet Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 3 of 6 TYFMCAL CO~r COQF-L-Ce ~.Toti o Too)NollLE. SL-Sý EO6US Geomr&TgY AZZ 'a coufto-z )ZY
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 35 of 101 Figure 12 N-1 B - RPV Recirculation Outlet Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 4 of 6 AP t NQ: CZe3 E~Sy 1."
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 36 of 101 Figure 12 N-1 B - RPV Recirculation Outlet Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 5 of 6 ZKkUL.FkT=Cr-j - &-,rcj v~.s 1-4.
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 37 of 101 Figure 12 N-1 B - RPV Recirculation Outlet Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 6 of 6 T Y C0M -
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 38 of 101 Component ID: N-2A, 2B, 2E, 2H, 2K.
Component
Description:
Welds N-2A, 2B, 2E, 2H and 2K are Recirculation Inlet RPV nozzle welds.
Examination Requirements: Section XI Appendix VIII requirements were not applicable at the time of this inspection. A full volume examination was conducted in accordance with the requirements of ASME Section Xl, 1989 Edition, no Addenda.
Materials: Base metal materials are carbon steel material. RPV material is A-508-64 Class 2 and nozzle material is A508 Class 2.
Limitina Conditions: The nozzle radius restricts transducer movement when scanning perpendicularly and circumferentially impeding volume coverage. Additional restrictions are a permanently mounted insulation ring, bracket and insulation.
Calculated Volume Coverage: These examinations were conducted to the maximum extent possible. The calculated volume coverage is detailed below.
Coverage achieved = full volume 66.1%
Examination Results: No relevant indications requiring IWB 3000 evaluations were identified.
References:
Relief Request Attachment 4A and Figure 13 below.
Figure 13 includes sketches that are typical of weld N-2A, 2B, 2E, 2H and 2K that illustrate the limiting condition which impacts examination coverage.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 39of 101 Figure 13 N-2A, 2B, 2E, 2H, 2K - RPV Recirculation Inlet Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 1 of 5 Typical Calculation for Code Required Volume For N2 Recirculation Inlet Nozzles Exam Coverage Exam Coverage Code Required Achieved Not Achieved 00 19.9% 13.1% 33%
450 & 600 26.3% 6.7% 33%
Ax. Scans 450 & 600 19.9% 13.1% 33%
Circ. Scans 66.1% = Total Percentage of Code Required Volume Achieved
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 40 of 101 Figure 13 N-2A, 2B, 2E, 2H, 2K - RPV Recirculation Inlet Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 2 of 5 Drawing of Nozzle and Limiting Condition A' 2-A- Search Unit Angie 4A! Mode__
\ .. ...
-Z S7,0A L
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Zt4 5i."Al 0 -N A~ 7*1 Welded attachments are not removable.
Reference Figure 13, Page 5 of 5, for examination coverage in the area.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 41 of 101 Figure 13 N-2A, 2B, 2E, 2H, 2K - RPV Recirculation Inlet Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 3 of 5 Axial 450 & 600 I
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 42 of 101 Figure 13.
N-2A, 2B1, 2E, 2H, 2K - RPV Recirculation Inlet Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 4 of 5 Ty~c.z.L ~ CouFaZ-CoiTLO. KkuNC Rrz(oo' Cmzz.. 5c'v,9.
all
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 43 of 101 Figure 13 N-2A, 2B, 2E, 2H, 2K - RPV Recirculation Inlet Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 5 of 5 7YP.f_*L.COZý CcVs.MC,GE._T=..**-.-
Axial 450 & 600 Coverage Axial 600 Coverage
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 44 of 101 Component ID: N-2F Component
Description:
Weld N-2F is a Recirculation Inlet RPV nozzle weld.
Examination Requirements: Section Xl Appendix VIII requirements were not applicable at the time of this inspection. A full volume examination was conducted in accordance with the requirements of ASME Section XI, 1989 Edition, no Addenda.
Materials: Base metal materials are carbon steel material. RPV material is A-508-64 Class 2 and nozzle material is A508 Class 2.
Limiting Conditions:' The nozzle radius restricts transducer movement when scanning perpendicularly and circumferentially impeding volume coverage. Additional restrictions are a permanently mounted insulation ring, bracket and insulation.
Calculated Volume Coveraqe: This examination was conducted to the maximum extent possible. The calculated volume coverage is detailed below.
Coverage achieved = full volume 68%
Examination Results: No relevant indications requiring IWB 3000 evaluations were identified.
References:
Relief Request Attachment 4B and Figure 13 above and Figure 14 below. Figure 14 includes sketches of weld N-2F that illustrate the limiting conditions which impact examination coverage. Figure 13 above depicts these additional restrictions which are typical for both the Recirculation Inlet nozzles as well as the N2F weld.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 45 of 101 Figure 14 N-2F - RPV Recirculation Inlet Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 1 of 2 OQ BASE METAL COVE-GE V:WEL M!,NETrALCQCVR-A(2 E Arta Total Ba~e Metal Volume Area, 4 - Total Weld \4ema Volume Area - 6. 0 "* - 13.05"1 Areas 5.26"' - 5.26" Area , 0 469? or 46.97% ScavneiI Area , 1.0 or 00% Scanned 450& 600 BASE METAL COVERAGE CW 45Q& 60r BASE METAL ,COIER ,GE ccv Arr I ToWaI
." Base Metal Volume Area 4 -- Tifal Base Metal Volujme Area 0
- 6. Q , 3.05" Area 6.13"1 13.05",
Area 0.4691 or 46.91k Stormed Area 0,46977 or 46,97% Scanned 45*& 60* WELD METAL COVRAGE CW 4it& 600 WEL MI TAL COVURA(cE CCI Area Total Weld Metal Volume Area 4 "ttaj Weld Metal Volimc Atea .2or 5.26cae
.S Area 1.0 or }IM.;' S*cnrx d Arta 5.26"' - 5.26"'
Area 1,0 or IM% Scanned TOTAL WELDREOQUIRED VOLUME SCANNED 0.1- I o0 ob.0 400.00% - 5 SanK*t U.00% Total Weld Required Votlume Scanned 45& 601 CW 100.00%
45" &60' CCW - 100.00%
2 AN1.LES FJRWA RD,,-- 100,00%
2ANGLE9 A00M%
400.00%
TOTAL BASENMTAL REOUIRFED VOLUME SCANNED 0" -1 46.97% 224.05% - 4 Scans .-56.01% Tolal Weld Required Volume Sanned 45' & 6O" CW 46.97%
45' & 60" C(W 4607%
TOTAL REOQIREL) VOLUME. CAINNED ALL ANGLES Total Weld Rrquitrd Volume Scanned - Total 945'ýMC!.Al Volntuc Scawied X,1) ,%% 3- Sa.; 36.O-% 2, 6S.00% TfOWlXequiicd Vuiw S.anned All Angles
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 46 of 101 Figure 14 N-2F - RPV Recirculation Inlet Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 2 of 2 Circumferential coverage o in areas 3 and 4 only.
- t
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 47 of 101 Component ID: N-2C 2D, 2G, 2J Component
Description:
Welds N-2C, 2D, 2G and 2J are Recirculation Inlet RPV nozzle welds.
Examination Requirements: These examinations were conducted in accordance with the criteria of ASME Code Section XI, Appendix VIII with personnel, procedures and equipment qualified through the PDI process.
Materials: Base metal materials are carbon steel material. RPV material is A-508-64 Class 2 and nozzle material is A508 Class 2.
Limiting Conditions: The nozzle radius restricts transducer movement when scanning perpendicularly and circumferentially impeding volume coverage. Additional restrictions are a permanently mounted insulation ring, bracket and insulation.
Calculated Volume Coveraqe These examination were conducted to the maximum extent possible. The calculated volume coverage for near-surface, inner 15%, full volume and composite coverage obtained during the inspection are provided below.
Coverage Achieved:
Near surface = 9.3%
Supplement 6 coverage = 14.4%
Supplement 4 coverage (Inner 15%) = 62.2%
Composite Coverage = 85.9%
Examination Results: No relevant indications requiring IWB 3000 evaluations were identified.
References:
Reference Relief Request Attachment 4A & 4C, Figure 13 above and Figure 15 below. Figure 15 includes sketches of welds N-2C, 2D, 2G, 2J that illustrate the limiting conditions which impact examination coverage. Figure 13 above depicts the additional restrictions which are typical for the Recirculation Inlet nozzles the N2F nozzles and the N-2C, 2D, 2G & 2J nozzles.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 48 of 101 Figure 15 N-2C 2D, 2G, 2J - RPV Recirculation Inlet Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 1 of 4
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 49 of 101 Figure 15 N-2C 2D, 2G, 2J - RPV Recirculation Inlet Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 2 of 4 4)C O 0D0
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 50 of 101 rFigure 15 N-2C 2D, 2G, 2J - RPV Recirculation Inlet Nozzle Welds Drawing of Nozzle and Limiting ConfiguratiOn Page 3 of 4 U)
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 51 of 101 Figure 15 N-2C 2D, 2G, 2J - RPV Recirculation Inlet Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 4 of 4 6
Z C E 0i 8~ 0 0 EnCp && \0 \0 E..., 4) (D E)"
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 52 of 101 Component ID: N-3A and 3B Component
Description:
Welds N-3A and 3B are Main Steam RPV nozzle welds.
Examination Requirements: These examinations were conducted in accordance with the criteria of ASME Code Section XI, Appendix VIII with personnel, procedures and equipment qualified through the PDI process.
Materials: Base metal materials are carbon steel material. RPV material is A-508-64 Class 2 and nozzle material is A508 Class 2.
Limiting Conditions: The nozzle radius restricts transducer movement when scanning perpendicularly and circumferentially impeding volume coverage.
Calculated Volume Coverage: These examinations were conducted to the maximum extent possible. The calculated volume coverage for near-surface, inner 15%, full volume and composite coverage obtained during the inspection are provided below.
Coverage Achieved:
Near surface = .8%
Supplement 6 coverage = 25.7 %
Supplement 4 coverage (Inner 15%) = 9.1%
Composite Coverage = 35.6%
Examination Results: No relevant indications requiring IWB 3000 evaluations were identified.
References:
Reference Relief Request Attachment 5A and Figure 16 below. Limiting conditions are shown in Figure 16.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 53 of 101 Figure 16 N-3A and 3B - RPV Main Steam Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 1 of 3
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LU I W AU EEE V 4a
-a C3 RA
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 54 of 101 Figure 16 N-3A and 3B - RPV Main Steam Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 2 of 3 CC
. c(
U U CU C/3 if~ E X; co, W ' C .)z a L E E I-CL' It
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 55 of 101 Figure 16 N-3A and 3B - RPV Main Steam Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 3 of 3 CO)
C= LC)n ItI ca C U:) 0 0 3* ggR' W ..
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 56 of 101 Component ID: N-3C and 3D Component
Description:
Welds N-3C and 3D are Main Steam RPV nozzle welds.
Examination Requirements: Section Xl Appendix VIII requirements were not applicable at the time of this inspection. A full volume examination was conducted in accordance with the requirements of ASME Section Xl, 1989 Edition, no Addenda.
Materials: Base metal materials are carbon steel material. RPV material is A-508-64 Class 2 and nozzle material is A508 Class 2.
Limiting Conditions: The nozzle radius restricts transducer movement when scanning perpendicularly and circumferentially impeding volume coverage.
Calculated Volume Coveraae These examinations were conducted to the maximum extent possible. The calculated volume coverage is detailed below.
Composite Coverage achieved = full volume 46.3%.
Examination Results: No relevant indications requiring IWB 3000 evaluations were identified.
References:
Reference Relief Request Attachment 5B and Figure 17 below. Figure 17 includes sketches of welds N-3C and 3D that illustrate the limiting condition impacting examination coverage.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 57 of 101 Figure 17 N-3C and 3D - RPV Main Steam Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 1 of 3 Typical Calculation for Code Required Volume For N Exam Coverage Exam Coverage Code Required Achieved Not Achieved o0 13.6% 19.4% 33%
450 & 600 19.1% 13.9% 33%
Ax. Scans 450 & 600 13.6% 19.4% 33%
Circ. Scans 46.3% Total Percentage of Code Required Volume Achieved
Enclosure 1 Docket No.. 50-333 JAFP-09-0008 Page 58 of 101 Figure 17 N-3C and 3D - RPV Main Steam Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 2 of 3 Typical Code Coverage Restrictions For N3 Maiin Steam Nozzles Limited Coverage 360' Around Nozzle Due To OD Nozzle Blend Radius Geometry Area Not Covered by 00, 450 and 600 Circ. Scans
~0 = 19.4%
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 59 of 101 Figure 17 N-3C and 3D - RPV Main Steam Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 3 of 3 N~~~~~QA-r S0 ~(O T c~ c SNCz
'9
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 60 of 101 Component ID: N-4A and 4C Component
Description:
Welds N-4A and 4C are Feedwater RPV nozzle welds.
Examination Requirements: Section Xl Appendix VIII requirements were not applicable at the time of this inspection however, these examinations were preformed in accordance with theparameters and criteria delineated in Ge-NE-523-A71-0594, Alternate BWR Feedwater Nozzle Inspection Requirements.
Materials: Base metal materials are carbon steel material. RPV material is A-508-64 Class 2 and nozzle material is A508 Class 2.
Limiting Conditions: The nozzle radius restricts transducer movement when scanning perpendicularly and circumferentially impeding volume coverage. Additional limitations impacting volume coverage are nozzles N-i 1A and 11 B, reference Figure 18 (typical of welds N-4A and 4C).
Calculated Volume Coverage These examinations were conducted to the maximum extent possible. The calculated volume coverage is detailed below.
Composite Coverage achieved = full volume 46.3%.
Examination Results: No relevant indications requiring IWB 3000 evaluations were identified.
References:
Reference Relief Request Attachment 6A and Figure 18 below. Figure 18 contains sketches that illustrate the limiting conditions impacting examination coverage.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 61 of 101 Figure 18 N-4A and 4C - Feedwater Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 1 of 4 COMPONENT Feedwater Nozzle to Shell WELD NO N4A BEAM ANGLE BREAK DOWN BEAM DIRECTION 0 45 Shear 60 Shear WELD: VOLUME WELD J VOLUME WELD VOLUME WELD VOLUME 0[Degree 62 55 NIA N/A i N/A N/A N/A N/A Perp. Toward N/A N/A 68 73 73 83 -
Perp. Away NIA NIA 0 NR 0 NR CW. N/A N/A 50 54 50 54 CCW N/A_!: N/A 50 5, 50 54 AVERAGE 59 50 52 Combined Average 53 Comments: NR= Heat Affect~ed Zone need only be scanned by two anole beams inany direction. __
Break downs above are calculated by areas calculated inautocad (seeppit sheet).
An addiJonal limitation was encountered from the Ni 1A nozzle limiting the scan by 17" or 21% of the weld. This brings the total combined average of 53 (53 X.79) to 42% Code Coverage.
TOTAL AVERAGE
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 62 of 101 Figure 18 N-4A and 4C - Feedwater Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 2 of 4 COMPONENT Feedwater Nozzle to Shell WELD NO N4C BEAM ANGLE BREAK DOWN
- BEAM DIRECTION 045 Shear f 60 Shear WELD .VOLUME1 WELD EVOLUMEI WELD VOLUME WELD IVOLUME 0 Degree 62 55 N/A N/A N/A N/A N/A N/A Perp. Toward N/A N/A 68 73 73 83 Perp Away "N/A N/A 0 NR 0 NR CW N/A N/A 50 54 50 54 CCW N/A N/A 50 54 50 54 AVERAGE 59 50 52 Combined Average 53 Comments: NR= Heat Affected Zone need only be scanned by two angle beams in any directin.
Break downs above Are calculated by areas calculated in autocad (see plot sheet).
An addfional lminitation was encountered' from. the N11 Anozzle limiting the scan by 17" or 21% Df the weld. This, brings the total combined- average of 53 (53 X .79) to 42% Code Coverage.
TOTAL AVERAGE 42 Analyst
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 63 of 101 Figure 18 N-4A and 4C - Feedwater Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 3 of 4 Ar-ecas used for CalcuLatlons Tota.L of Weidi 20.98 TotaL of HAZi 42.57 Weld DMa. (at C.L.)
26,06 Circ. 91A33'
-,Total -&4"redv coerec6i aY ur xie 3vMn HAZ Veid CW/CCV CV/CCW rowar-d HAZ Weld 4- -0.4 -1* P . 3 I 60 53. ,- 2303 I0____
a- 23,6 1P-9 N/I w _N/
Coverage PLots N4Ao N5b, N4C, N4D Nozzle To Shett %lelvs
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 64 of 101 Figure 18 N-4A and 4C - Feedwater Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 4 of 4 (Area of Interest)
Enclosure 1.
Docket No. 50-333 JAFP-09-0008 Page 65 of 101 Component ID: N-4B and 4D Component
Description:
Welds N-4B and 4D are Feedwater RPV nozzle welds.
Examination Reauirements: Section XI Appendix VIII requirements were not applicable at the time of this inspection however, these examinations were preformed in accordance with the parameters and criteria delineated in Ge-NE-523-A71-0594, Alternate BWR Feedwater Nozzle Inspection Requirements.
Materials: Base metal materials are carbon steel material. RPV material is A-508-64 Class 2 and nozzle material is A508 Class 2.
Limiting Conditions: The nozzle radius restricts transducer movement when scanning perpendicularly and circumferentially impeding volume coverage.
Calculated Volume Coveraqe These examinations were conducted to the maximum extent possible. The calculated volume coverage is detailed below.
Composite Coverage achieved = full volume 53%
Examination Results: No relevant indications requiring IWB 3000 evaluations were identified.
References:
Reference Relief Request Attachment 6A & 6B and Figure 19 below. Figure 19 includes sketches that are typical of welds N-4B and 4D and illustrates the limiting conditions impacting the examinations.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 66 of 101 Figure 19 N-4B and 4D - Feedwater Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 1 of 3 Drawing of Nozzle and Limiting Condition COMPONENT Feedwater Nozzle to She)l WELD NO N4B BEAM ANGLE BREAK DOWN BEAM DIRECTION 0 45 Shear 60 Shear WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME
_ eree . 62 -55 NIA N/A N/A N/A NIA NIA Perp. Toward N/A N/A 68 73 73 83 Perp. Away N/A N/A 0 NR 0 NR CW N/A N/A 50 54 50 54 CCW N/A I N/A 50 I 54 . _ 54 -5 AVERAGE 59 50 52 Combined Average 53 Comments: NR= Heat Affected Zone need only be scanned by to angle beams inany direction.
Break downs above are calculated by areas calculated inautocad (see plot sheet).
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 67 of 101 Figure 19 N-4B and 4D - Feedwater Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 2 of 3 COMPONENT Feedwater Nozzle to Shell WELD NO N41)
BEAM ANGLE BREAK DOWN BEAM DIRECTION C 45 Shear 60 Shear _
-WELD) VOLUME WELD VOLUME WELD VOLUME WELD VOLUME 0 Deree 62 55 N/A N/A N/A N/A NIA N/A Perp. Toward NIA N/A 68 73 13 83 Perp, Away NIA NIA 0 NR 0 NR .... _
CW N/A N/A 50 54 50 54 CCW N/A IN/A 50 54 50 54 AVERAGE 59 50 52 Lombined Average 53 Comments: NR= Heat Affected Zone need only be scanned y two arn beams inany direcdion.
Break downs above are calculated by areas calculated inaWtocad(see plot sheet).
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 68 of 101 Figure 19 N-4B and 4D - Feedwater Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 3 of 3 Areas used f or CmLcuLmtlons Total of W/eid, 20.98 Total of HAZi 4257 Weid Dia, (0-t CL,)
26.06' Circ, 91.83" I
T HAZ
. ]ovtn1 dT~Oi~t oo tovered by ave Veli cwcvCV/CCI rowcr AZ I wl Coverage Plots N4A, N4R, N4Cj N4O Nozzle 'to Shell Welds
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 69 of 101 Component ID: N-5A Component
Description:
N-5A is a Core Spray RPV nozzle weld.
Examination Requirements: Section XI Appendix VIII requirements were not applicable at the time of this inspection. A full volume examination was conducted in accordance with the requirements of ASME Section XI, 1989 Edition, no Addenda.
Materials: Base metal materials are carbon steel material. RPV material is A-508-64 Class 2 and nozzle material is A508 Class 2.
Limitinq Conditions: The nozzle radius restricts transducer movement when scanning perpendicularly and circumferentially impeding volume coverage. Additional limitations impacting volume coverage include a permanently mounted insulation ring.
Calculated Volume Coveraqe: This examination was conducted to the maximum extent possible. The calculated volume coverage is detailed below.
Composite Coverage achieved = full volume 38.11%.
Examination Results: No relevant indications requiring IWB 3000 evaluations were identified.
References:
Reference Relief Request Attachment 7A & 7B and Figure 20 below. Figure 20 contains sketches that illustrate the limiting conditions affecting examination coverage.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 70 of 101 Figure 20 N-5A - Core Spray RPV Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 1 of 3 N-5A COVERAGE Vessel Base Metal Are.==.a. ,Area - a" c + a Arca 0.2625"' - 0.05625"'
Area'/, ( b x hI Ares " A b xhb Area 0.21"r a + d +
Area - V,=(0.15' r 0.75') Area ' ((0 70" . 0.75"1 Area== (0.1125"') Area / 1 ( 0. 525" Ana - 6.69 Total vessel base metal - 0.21"'* 6.48"' scanned Arcs - 0.056215". Arca 0.2625" Ar. - 6.48"'- 6.69"' - 0,968 rm 96.8%
Weld Metal Area e f+ g Ama :f~g+h+i Are# 0.2625" + 1.20" - 146"'"
Area- !' b x ) Area b xh Ace 1.46"' ,. 2.625" 'rota* oaald Mctal - .56 of Area - Y( 0.75" x 0.70") Are." 0.75" x 1.60" Ar 56.0%
Area - V (0.525"' ) Arc.m 1.20"2 scanned Ar= 0,2625 ' scanned Noazle Base Metal Area s -4I . Area - ] 40" - 5.865- NozzleBHas. Metal 024 o, 24 %
Area = '.(.b h)
Arca"='A ( 1.50" a 1.65" )
Art. - .( 2.805"')
c Area 1.40"1,caaned 0' and Cuc.
Area (b x h) Area. 4.50"'- 15.18"-1 0.296 or 30.r Area'( 1,50"ax3.00" Amn - 4.50"'0 scanned Trtal.
0' " 30 0%
4;Veaal B1 se Metal - 96.8%
45' Weld Metal - 56.0%/. in tme dirccias 4*' Weld Metal cnomingback 0.0%
45' Nozzle Base Metal Circ. CW direction - 30.0%W Car. CCW dirction - 30 0%
Ttal % in *aldlectaons 266.% 38.13 or 38.11%
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 71 of 101 Figure 20 N-5A - Core Spray RPV Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 2 of 3 I~AJ
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 72 of 101 Figure 20 N-5A - Core Spray RPV Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 3 of 3 N-5A COVERAGE Area - A*+B'C Ar-a 'D-A-B+C At.. ; (b . h )
Asoa ' ý(0.20" x 0.60") A. c, V. ( 0.20" . 0.60")
Area A (. 12" ) Area -/.A (. 12"')
Area 0.06"' Are. " 0.06"'
Are. -"A'E"*F Area :i (b xh) Area - 'A (b x h S Area V. 0.60" 0 x .20" Area " Yi (0.90" N 1.20")
) Area " 'A ( 1,08"-)
A Y.* .72"'
Areaea 0,345" Area - 0.135"'
Are. D -F+F[, Are. li"I*-S"T Area F"Xh Arco " b x h Area -. 50" x 0.50" Area = .50" . 3.00" Area = 0.T70"= Area "4.50."
Area - F+G ýJh Arec. K Area A ( bx h Area, . A*lb xh6 Arco - 'A (0.40" x 0.75") Area = V (O0.l]5" ,,0,7S" )
(0 . ?,725"')
Area- V. ( 0.30") Area" Area - 0.15"' Area =0,05625"'
Area, - +*I Area - G6,I'CK Are.t :bx h Area.. b. 1 Area, 0.75"x 0.15" Are' 0.75" X 5.00" Arle = 0. 1125"' Are,, 2.25"'
Area K-L 'N Area I.MýN L
A- - " (b 6 N-)..-....
Area 'A ( 0.15" x 0.75") Area = 'A(0.l5" x0.75")
Are V(0.1125-') Ar. - ','"( 0. 1125"')
Arc: - 0.05625"1 Areo - 0.05625-'
Ar I." Area, - N,00' P-Q Are, bx h Arc' b , I Area- 0.75" x 2.85" A-e 15" " 3.00" Arc . 2.1375"- Arte. 4.50"'
Vemae! iBaMeMetal "4.50"' - 2.1375 "' ÷ 0.05625"' - 6.69"'
Weld Meoral-0.05625"'= +ý 0.05625"' 1- 2.25"' , 0 0.1"'
_125" I "2,625"*
NozMel BSe Mal -4.50"' - 0750"' .' 0.36"' 1. 0.135"' ' 0.06"' . 0.06"' = 5.665
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 73 of 101 Component ID: N-5B Component
Description:
N-5B is a Core Spray RPV nozzle weld.
Examination Requirements: This examination was conducted in accordance with the criteria of ASME Code Section XI, Appendix VIII with personnel, procedures and equipment qualified through the PDI process.
Materials: Base metal materials are carbon steel material. RPV material is A-508-64 Class 2 and nozzle material is A508 Class 2.
Limitinq Conditions: The nozzle radius restricts transducer movement when scanning perpendicularly and circumferentially impeding volume coverage. Additional limitations impacting volume coverage include a permanently mounted insulation ring.
Calculated Volume Coverage: This examination was conducted to the maximum extent possible. The calculated volume coverage for r near-surface, inner 15% and full volume obtained during the inspection is detailed below.
Coverage Achieved:
Near surface = .1.5%
Supplement 6 coverage = 27.9%
Supplement 4 coverage (Inner 15%) = 9.1%
Composite Coverage = 38.6%
Examination Results: No relevant indications requiring IWB 3000 evaluations were identified.
References:
Reference Relief Request Attachment 7A & 7B, Figure 20 above and 21 below. Figure 20 includes a sketch (typical for both nozzles N-5A and N-5B) that illustrates the permanently mounted insulation ring restricting the examination area.
Figure 21 includes sketches that illustrate the limiting condition affecting examination coverage.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 74 of 101 Figure 21 N-5B - Core Spray RPV Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 1 of 3 6LI*
UCo CO CýC, 01 IL.? A*tt
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 75 of 101 Figure 21 N-5B - Core Spray RPV Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 2 of 3 CL
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 76 of 101 Figure 21 N-5B - Core Spray RPV Nozzle Welds Drawing of Nozzle and Limiting Configuration Page 3 of 3 (U
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 77 of 101 Component ID: N-8B Component
Description:
Weld N-8B is a Jet Pump Instrumentation ("JPI") RPV nozzle weld.
Examination Reduirements: Section Xl Appendix VIII requirements were not applicable at the time of this inspection. A full volume examination was conducted in accordance with the requirements of ASME Section Xl, 1989 Edition, no Addenda.
Materials: Base metal materials'are carbon steel material. RPV material is A-508-64 Class 2 and nozzle material is A508 Class 2.
Limiting Conditions: The nozzle radius restricts transducer movement when scanning perpendicularly and circumferentially impeding volume coverage. Additionally, access to the JPI nozzle is through an opening in the bio-shield wall that is approximately 3.5 ft. high by 4 ft wide and 4ft deep. The removal of insulation surrounding the nozzle is limited.
Calculated Volume. Coveraqe: This examination was conducted to the maximum extent possible. The calculated volume coverage is detailed below.
Composite Coverage achieved = full volume 71.6%
Examination Results: No relevant indications requiring IWB 3000 evaluations were identified.
References:
Reference Relief Request Attachment 8B and Figure 22
'below. The accessible examination area is illustrated in Figure 22.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 78 of 101 Figure 22 N-8B - Jet Pump Instrumentation RPV Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 1 of 5 Typical Calculation for Code Required Volume for N8 Jet Pump Instrumentation Nozzles.
Exam Coverage Exam Coverage Code Required Achieved Not Achieved o0 22.2% 10.8% 33%
450 & 600 27.2% 5.8% 33%
Ax. Scans 450 & 600 22.2% 10.8% 33%
Circ. Scans 71.6% = Total Percentage of Code Required Volume Achieved
- Note: Calculations for 450 & 600 Ax Scans exam. Covered not achieved.
Included limited coverage due to OD nozzle blend radius geometry. Limited coverage due to mirror insulation.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 79 of 101 Figure 22 N-8B - Jet Pump Instrumentation RPV Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 2 of 5 S 'k Ai 101Q~
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 80 of 101 Figure 22 N-8B - Jet Pump Instrumentation RPV Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 3 of 5 Tyrz(.Nk. COZ C0\ýAC.C .ESMW xON ;:Q. N 1f
- tAxial, 450 & 600 Coverage Axial 450 Coverage
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 81 of 101 Figure 22 N-8B - Jet Pump Instrumentation RPV Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 4 of 5 L-Zh%:tTszi Cýý3&zkQi; 1ýe RZtt4mt. NmIlLC ZiuG -ro em SLSkZ. Ga:CýAr\?-y I.- .........
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 82 of 101 Figure 22 N-8B - Jet Pump Instrumentation RPV Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 5 of 5 Nol!-r
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 83 of 101 Component ID: N-9 Component
Description:
Weld N-9 is a Control Rod Drive RPV nozzle weld.
Examination Requirements: This examination was conducted in accordance with the criteria of ASME Code Section XI, Appendix VIII with personnel, procedures and equipment qualified through the PDI process.
Materials: Base metal materials are carbon steel material. RPV material is A-508-64 Class 2 and nozzle material is A508 Class 2.
Limiting Conditions: The nozzle radius restricts transducer movement when scanning perpendicularly and circumferentially impeding volume coverage. Additional limitations impacting volume coverage include a permanently mounted insulation ring.
Calculated Volume CoveraaE This examination was conducted to the maximum extent possible. The calculated volume coverage for near-surface, inner 15% and full volume obtained during the inspection is detailed below.
Coverage Achieved Near surface = 7.1%
Supplement 6 coverage = 46%
Supplement 4 coverage (Inner 15%) = 13.2%
Composite Coverage = 66.2%
Examination Results: No relevant indications requiring IWB 3000 evaluations were identified.
References:
Reference Relief Request Attachment 9 and Figure 23 below. Figure 23 includes sketches of weld N-9 that illustrate the limiting conditions which affect examination coverage.
I
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 84 of 101 Figure 23 N Control Rod Drive RPV Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 1 of 5
'Weld RPV-N9-NV CRD0:
Fa.l 2006 COS CROSS4ECTIOQNL AREA TOTAL CODE COVERAGE Weld Length: 360, Required Exam Area lanned of Aret Weld Length Percent iaEm Volume.8 A94a Sq. In, Manoal Manu4 Manual Manual 50 .&T-CanA7,4%131 3.2%,
60, S6T 'can A 32.2 28'a 18 315 27
$600 S4T-Scar A 81 146% 2 64a 60VNsP-Sa A 153 8 68% 3 I. 30%
6T S6 P-Scan A 322 24,8 j 44,6%,.15 I 15 A 81 81 IScn 146I 315 60NST-Sa 153 41 7-4% 45 0.5%
60 S6 T-Scan B 132,2 tu5. 2B. 1% 46 t8%
,60S4TS 8,I 0.9 16%o 45 01%
. ,. - . [ . -I, ,
60NS P-Sca1 5 3.8.% 45 04%
60°$6 Pvwn B 322 ,174 4.3%: 45 2.0%
J6FS4:2RS Scan 5.2%V
! Il . II I I! [ III II
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%Total Composite Coverage;= 66.2%
Comments; A:7 Staning {inited due 1onozzle c*tnguration B Scanhing restricted due to the prgximity of the insulation support drng.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 85 of 101 Fiqure 23 N Control Rod Drive RPV Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 2 of 5 N9 CRD Nozzle 600 RL T-Scan restricted due to Insulation support ring OD Blend Radius Insulation support 1250 az.
1700 az.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 86 of 101 Figure 23 N Control Rod Drive RPV Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 3 of 5 0,
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 87 of 101 Figure 23 N Control Rod Drive RPV Nozzle Weld Drawing of Nozzle and Limiting Configuration Page 4 of 5 6ci
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 88 of 101 Figure 23 N Control Rod Drive RPV Nozzle Weld Drawing of Nozzle and Limiting Configuration page 5 of 5 ww E m> >
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 89 of 101 2.3 Request for Relief RR-CRV-1 (Part C), ASME Code, Section Xl, Examination Category B-8-1, Item B6.40, Reactor Vessel Flange Ligament The licensee has included, as Enclosure 10, a rough hand sketch depicting areas of limited scanning. However, insufficient text is provided in order to make use of the drawing. In order to demonstrate impracticality, a) Submit a detailed written description of how the machined areas on either side of the threaded areas in the RPV flange impacted ultrasonic scanning and;
Response
The limitations identified for the Reactor Vessel Flange ligament are machined grooves on either side of the RPV flange bolting area. The machined grooves prohibit examination in those areas due to loss of transducer contact with the examination surface. Loss of transducer contact prevents sound transmission into the component (i.e. no examination).-
Figure 24 is provided showing cutouts from design drawing for the machining of the flange; no examination is performed where the machining exists.
b) In addition, describe the ultrasonic methods employed to maximize coverage for the subject areas.
Response
Examination of the Reactor Vessel Flange ligament areas as identified within the Relief Request is correct and has been performed to the extent possible in accordance with the requirements of ASME Code Section Xl, 1989 Edition, no Addenda. This is an ultrasonic straight beam technique requiring surface contact for examination. Where the flat surface is interrupted by the machining grooves, no qualified examination can be performed.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 90 of 101 Fiqure 24 Design Drawings Details of the Obstructions to Examination of the RPV Flange Ligament areas.
The cutouts below are from design drawings and identify the obstructions to examination of the RPV Flange ligament areas.
Note: This is the drawing detail for Step II machining of the flange seal areas. The flange is shown 180 degrees out from Step #1 machining detail above.
The machined area for the inner flange seal prevents sound transmission as identified within the Relief Request.
7,7"/L"Y,0.- 7)
AM' C -101-W
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 91 of 101 2.4 Request for Relief RR-CRV-1 (Part D), ASME Code,Section XI, Examination Category B-K, Item B10.10, Integrally Welded Attachments.
The licensee provided, as Enclosure 11, two drawings showing the RPV stabilizer brackets and listing surface and visual coverage. However, insufficient text has been provided to discuss the exact cause of the limited surface examination.
a) Submit further description of the limiting conditions for performing the magnetic particle examinations on the integral attachment welds,
Response
Figure 25 is attached for information on the stabilizer configuration. The RPV stabilizer brackets are identified as only being accessible on the top side for examination. The stabilizer connection clevis and pin does not allow access to the side welds for cleaning and / or MT or PT examination. The physical location of the bracket with the RPV stabilizer connected does not allow access the bottom weld. The attachment is a 13" x 6 1/8" welded bracket providing = 38" of total weld surface. 13" of the weld was examined providing = 34% code coverage. The remaining areas where visually examined to the extent possible as a supplemental examination (not a Code required examination).
b) State whether surface examination coverage could be increased by using liquid penetrant examination techniques and;
Response
No additional coverage can be achieved with MT or PT examination without removal of the RPV stabilizer. Physical access for cleaning and examination are the problems involved with the examination.
c) State whether the surface and VT-1 examinations detected any reportable conditions.
Response
No recordable indications were identified during the VT-1 examinations performed ,
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 92 of 101 Figure 25 Design Drawings Details of the RPV Stabilizer Connection.
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Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 93 of 101 2.5 Request for Relief RR-CRV-1 (Part E) ASME Code, Section Xl, Examination Category C-A, Item C1.20, Pressure Retaining Welds in Pressure Vessels The licensee provided, as Enclosure 12, two drawings showing ultrasonic angle beams applied and scanning obstructions due to supports and weld-o-lets.
However, insufficient text is given to adequately describe the level of ASME Code coverage was obtained.
a) Submit further description of the limiting conditions for performing ultrasonic examination.
Response
The Control Rod Drive Scram Tank Bottom Head to Shell Weld, Item No. C1.20, Weld I.D.
BH-1A examination is limited by support structures and weld-o-lets to the tank. Figure 26 is a picture showing the obstructions encountered during the examination.
During the preparation of this response it was discovered that an error was made on NDE Report Number 04UT069. Total examination coverage data taken from this NDE report was subsequently included in* Request for Relief RR-CRV-1 Attachment 12. The total area
-inspected ultrasonically was originally listed in Attachment 12 at 18%. Correct coverage is provided in the following paragraphs of this response and depicted in Figure 27, Condition Report CR-JAF-09-00059 was generated for documentation.
Due to the as welded crown width and the configuration of the bottom head; Weld BH-1A, was axially scanned from shell side of the weld using a 450 and 700 to achieve code coverage in the areas that were not obstructed. Multi-directional 450 circumferential scans conducted from both the shell side and bottom head side of the weld were performed to achieve circumferential coverage to the extent possible. 39.8 % code coverage of the weld was achieved during examination. Please see reference Figure 27 for coverage calculation.
b) Re-submit the cross-sectional sketch showing areas of completed coverage for each of the ultrasonic techniques employed.
Response
Reference Figure 27 for cross-sectional sketch showing areas of completed coverage for each of the ultrasonic techniques employed and coverage calculation.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 94 of 101 Figure 26 Picture of Control Rod Drive Scram Tank Including Bottom Head to Shell Weld. Item No. C1 .20, Weld I.D. BH-1A.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 95 of 101 Figure 27 Control Rod Drive Scram Tank Bottom Head to Shell Weld BH-1 A Examination Coverage.
Page 1 of 2 Shell 3" 3" ld l 3" Is'~oIe 9.P" 1.5" Weld l~d Bottom Head:
suppcwt suppeti 76" Weld length Obstructions: 4 Supports 9" wide =36" 4 Weld-o-lets 3" wide 12" Total weld obstructed =48" 76" - 48" = 28" examined 36% axial coverage achieved
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 96 of 101 Figure 27 Control Rod Drive Scram Tank Bottom Head to Shell Weld BH-1 A Examination Coveram.e, Page 2 of 2-450 circumferential scan coverage cross-sectional sketch, typical both sides. Average limited coverage at the ends of the scan is 0.85".
Support --
1*-1.2" 014 1.2" 1/2" 4J Circumferential composite coverage area was calculated to be 8.3" between the supports 10" 1 Weld -- ------------- /// //////,
Support - [* ~ Coverage 10" - 1.7" = 8.3"/
Typ. 4 places Circumferential coverage 76" Weld length Obstructions: 4 Supports 9" wide.
4 Scan limitations @ 1.7" Total weld obstructed =42.8" 76" - 42.8" = 33.2" examined 43.6% circumferential coverage achieved Total code coverage achieved during examination 36% axial coverage 43.6% circumferential coverage 39.8% Composite Code Coverage = (36 = 43.6) / 2
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 97 of 101 2.6 Request for Relief RR-CRV-1 (Part F) ASME Code, Section Xl, Examination Category C-B, Item C2.22, Pressure Retaining Nozzle Welds in Vessels The licensee provided, as Enclosure 13, two drawings showing ultrasonic angle beams applied and geometrical conditions that may affect ultrasonic scanning.
However, insufficient text is given to adequately describe the level of ASME Code coverage that was obtained.
a) Submit further description of the limiting conditions for performing ultrasonic examination.
Response
The Control Rod Drive Scram Tank Nozzle to Shell Inner Radius examination is limited by component configuration. The nozzle radius, restricts the transducer movement when scanning perpendicularly impeding volume coverage. Figure 28 illustrates the limiting conditions and estimated coverage. This examination has been conducted to the maximum extent possible.
b) Re-submit the cross-sectional sketch showing areas of completed coverage for each of the ultrasonic techniques employed.
Response
Please refer to Figure 28 for a cross-sectional sketch depicting areas of completed coverage for each of the ultrasonic techniques employed and coverage calculation.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 98 of 101 Figure 28 Control Rod Drive Scram Tank Nozzle to Shell Inner Radius (N-1-A-IR)
Examination Coverage.
Page 1 of 2 LZJW 4i!ýV&M TALIV A~
Ar ~1 Area of limited coverage is 0o maximum at 00 and 1800 and diminishes to zero at 900 and 2700 based on
-I'l component curvature N-1-A -IR 1800
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 99 of 101 Figure 28 Control Rod Drive Scram Tank Nozzle to Shell Inner Radius (N-1-A-IR)
Examination Coverage.
Page 2 of 2 Area of limited 2.0 coverage is maximum at 00 and 1800 0 l)and diminishes to no limitations
, Lat 900 and 2700 based on component curvature 00 / '90 T- YPI CAL
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qo7 2o CovERAC-_*
00 A'PPPxIMAITE' 766/0 COVEN.&E AC-NEV.b 0-NY 9P, 276° 0- .1O*AIBO
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TYPICAL
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 100 of 101 2.7 Request for Relief RR-CRV-1 (Part G) ASME Code,Section XI, Examination Category R-A, Item R1.20 (Category C-F-2, Item C 5.51) Pressure Retaining Welds in Carbon or Low Alloy Steel Piping The licensee has provided a drawing, Enclosure 14, which is believed to show the coverage obtained from the pipe side of the weld for axial scans. However, insufficient text is included to describe the conditions that limit ultrasonic scanning in both the axial and circumferential directions.
a) Please submit further written description to demonstrate impracticality. In addition, describe the ultrasonic techniques employed,
Response
Weld 14-23-433 is a carbon steel pipe to valve weld that is limited for complete examination by the valve configuration. Complete axial coverage is achieved through the use of the 45 and 70 degree transducers. Circumferential coverage was achieve on the pipe and weld crown to the taper of the valve. Circumferential coverage under the valve taper adjacent the weld has not been credited for this examination. Total volume coverage identified by the examiner includes 100% axial coverage and 75%
circumferential 'coverage with an 87.5% composite coverage. The examination volume coverage's were based on Risk Based Examination volume requirements. See Figure 29 for the limiting conditions and estimated coverage b) State whether any outside diameter surface feature, such as-weld crown, diametrical weld shrinkage, or surface roughness conditions caused limited volumetric coverage during the subject piping weld examinations.
Response
Circumferential coverage was achieve ,on the pipe and weld crown to the taper of the valve. Weld crown, diametrical weld shrinkage, or surface roughness conditions were not the cause of the limited volumetric coverage. Circumferential examination under the valve taper was not credited, reference Figure 29.
c) Discuss the efforts that were used to correct these conditions.
Response
No conditions exist for correction, the valve taper is the limiting condition and does not allow circumferential examination on that side of the weld.
d) Clarify whether the methods used to examine the subject piping weld have been qualified in accordance with performance demonstration requirements per ASME Code,Section XI, Appendix VIII.
Response
Examination performed per performance demonstration initiative (PDI) requirements per ASME Code, Section Xl, Appendix VIII utilizing qualified personnel, procedures and equipment.
Enclosure 1 Docket No. 50-333 JAFP-09-0008 Page 101 of 101 Figure 29 Weld 14-23-433 Examination Coverage.
Page 1 of 1 Valve Area not examined is below the valve taper. FIL9 4Tr (rPC)
Examination on this side not credited. F LO-0 PIPE AXIAL EXAM
- Coverage = 100%
CIRC EXAM
- Exam width = (0.5" US + Weld + 0.5" DS) = 2.0"
- Examined (Weld + 0.5" DS) = 1.5"
- 1.5/2=75%
CALC 0 (100% + 75%) / 2 = 87.5% coverage.