ML14141A025

Steam Generator Tube Inspection Report

ML14141A025
Person / Time
Site:	Palo Verde
Issue date:	05/16/2014
From:	APS, Arizona Public Service Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
102-06883-TNW/DHK
Download: ML14141A025 (26)

Text

Technical Specification 5.6.8 0aps Palo Verde Nuclear Generating Station 5801 S. Wintersburg Road Tonopah, AZ 85354 102-06883-TNW/DHK May 16, 2014 ATTN: Document Control Desk U. S. Nuclear Regulatory Commission Washington, DC 20555-0001

Subject:

Palo Verde Nuclear Generating Station (PVNGS) Unit 3 Docket No. STN 50-530 License No. NPF-74 Steam Generator Tube Inspection Report Attached please find the PVNGS Unit 3 Steam Generator Tube Inspection Report prepared and submitted by Arizona Public Service Company (APS) pursuant to Technical Specification (TS) Reporting Requirement 5.6.8. This report describes steam generator tube inspection and plugging results from the Unit 3 seventeenth refueling outage.

By copy of this letter, this submittal is being provided to the NRC Region IV Administrator and the PVNGS Senior Resident Inspector. No commitments are being made to the NRC by this letter.

Should you have questions regarding this submittal, please contact David H. Kelsey, Licensing Section Leader, at (623) 393-5730.

Sincerely, d6IO2 TNW/DHK/CJS/hsc Attachment cc: (with attachment)

M. L. Dapas NRC Region IV Regional Administrator J. K. Rankin NRC NRR Project Manager for PVNGS M. A. Brown NRC Senior Resident Inspector for PVNGS A member of7ýe Callaway

• STARS Comanche (Strategic:

Pea Teaming and Raesource Sharing) 9 Diablo Canyon 0 Plao Verde Alliance 0 Wolf~ Creek AOO I

Attachment Unit 3 - 1 7 th Refueling Outage Steam Generator Tube Inspection Report

a Palo Verde Nuclear Generaming Staion UNIT3 U3R17 ARIZONA PUBLIC SERVICE P. O. BOX 52034 PHOENIX, AZ 85072 Prepared by: Douglas Hansen 11-18-13 Hansen, Douglas D 9-11lysmgned Do,9185B(zy530 by Ha-en DN0cn=Hansen,Douglas B(Z41530) B(74 530)

Date: 201405,1308:04,060;'00' Reviewed by: Leaverton, Dq~a1ýsntaby L.--e1rtWa-en L(V59783) Bassett, Oý,114,

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Approved by: DN;cn -RadstinneWMakA(Z76778)

Reason System Enginer-n M ark A(Z76778) De.ae....Leade, Date:20140514 15:08:38 07T00 Commercial Service Date: 1-8-88 1 of 24

Table of Contents 1.0

SUMMARY

2.0 SCOPE OF EXAMINATIONS PERFORMED 3.0 ACTIVE DEGRADATION MECHANISMS 4.0 NDE TECHNIQUES UTILIZED 5.0 INDICATION

SUMMARY

6.0 TUBES PLUGGED 7.0 PLUG HISTORY 8.0 CONDITION MONITORING APPENDIX A - TUBE SUPPORT DIAGRAM, LEGEND, and ANALYSIS CODES APPENDIX B - SG 31

SUMMARY

DATA SHEETS APPENDIX C - EXAMINATION SCOPE AND HISTORY PLUG MAP 2 of 24

UNIT 3 STEAM GENERATOR EDDY CURRENT U3 R17 Refueling Outage 1.0 Summary This report is intended to satisfy the requirements of PVNGS Technical Specifications 5.6.8 for the submittal of a Steam Generator Tube Inspection Report. The steam generator (SG) eddy current examination for the 17th refueling outage in Unit 3 (U3R17) was conducted during November 2013. Mode 4 entry of Unit 3 Cycle 17 was entered on November 21, 2013. These examinations were conducted due to evidence found during foreign object search and retrieval (FOSAR) in SG 31 only. The examination plan is listed in Table I and a map with the scope is illustrated in Appendix C. This table summarizes the examinations performed for each of the various categories, examination types, extents, and the number of tubes or tube locations completed.

The examinations resulted in a total of 0 tubes being plugged in SG 31.

2.0 Scope of Examinations Performed The original examination plan was developed based on the "PVNGS U3R17 Steam Generator Degradation Assessment" as revised by the evidence of foreign object wear. Note Section 8 for a detailed description. The plan was developed per PVNGS Procedure 81DP-9RC0I as required by NEI 97-06. In addition, possible damage mechanisms were reviewed along with the specific requirements set forth in Procedure 73TI-9RCO1 and the PVNGS Technical Specifications.

3.0 Active Degradation Mechanisms The only degradation noted during the examinations was determined to be wear. Section 8.0 contains further discussions relating to this mechanism. Table 2 summarizes the results into categories and sections B and C itemizes all indications reported.

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4.0 NDE Techniques Utilized The following table documents the site qualified techniques utilized during this outage:

BOBBIN Examination Damage Location ETSS QUAL ORIENTATON BC BC TECH Comment Mechanism NO STATUS DET SIZE Wear BWs, VSs, 96004.1 SITE NA Y Y Volt DIFF None ECs, Rev. 13 QUALIFIED 1 ___ 4-2010 , I Wear Loose Part 27091.2 SITE NA Y N Volt DIFF None Rev. 1 QUALIFIED 8-2007 Rotating Coil Examinations Damage Location ETSS QUAL ORIENTATION RC RC TECH Comment Mechanism NO STATUS DET SIZE BWs, ECs, 96910.1 SITE NA Y Y +POINT None Wear VSs Rev. 10 QUALIFIED 8-2006 I I The eddy current examinations were performed by Westinghouse Electric Company using the Core Star OMNI 200 eddy current instrument. Westinghouse Anser software was utilized to acquire the data along with the Pegasys robotic manipulator. This robot was configured with a single guide tube in SG 31 cold leg.

The tubing was examined with Zetec manufactured bobbin coil probes and Zetec rotating coil (RC) style probes. Probe diameters were 0.600" to 0.610". Plus Point RC probes were used for the characterization of non-quantifiable or distorted bobbin indications.

Fiber optic cable was used from containment to the data acquisition room located at the PVNGS North Annex. Primary and secondary analysis was all performed on site. The Primary and Secondary Resolution Analysts, Independent Review Analysts, and data management were also located at PVNGS in the North Annex. Westinghouse provided the data acquisition and primary data analysis. Anatec International, Inc. provided the secondary data analysis.

Each individual from Westinghouse and Anatec International, Inc. who performed data analysis was required to complete and pass a PVNGS site specific Eddy Current Data Analysis Course as well as an associated performance and written examination. All individuals performing data analysis were also required to have Qualified Data Analyst (QDA) certification. Per 73T1-9RCO0, all certification records are maintained in the Nuclear Information Records Management System.

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5.0 Indication Summary A detailed listing of the location and measured sizes of all service induced indications recorded is included in Appendix B and C. A summary of these indication results is located in Table 2. In addition, Appendix A contains a reference drawing of steam generator support locations and report legend.

There were no indications that were identified as linear during this outage.

6.0 Tubes Plugged There were no tubes plugged, however, a summary of the total tubes plugged is located in Table 2.

Appendix E contains a map that details the plugged tube location along with the previously plugged tubes.

7.0 Plug History A summary of the number and percentage of tubes plugged is also located in Table 2.

8.0 Condition Monitoring Per the Steam Generator Program, as defined in PVNGS Procedure 81DP-9RCO1, a condition monitoring evaluation was conducted by PVNGS Engineering. The results of the eddy current examinations are provided in Section 5.0. An engineering evaluation of the as-found condition of in-service tubes did not reveal any degradation exceeding the threshold values for structural and leakage integrity. As such, all steam generator performance criteria were satisfied for Unit 3 Cycle

17. No tube pulls or in-situ pressure testing were required based on the results of the examinations.

Foreign Object Search and Retrieval (FOSAR)

On October 9th 2013, during performance of Routine Maintenance Work Order 4197718, Internal Inspection and ECTofthe HPFWH, several metallic parts were discovered in the inlet tube side of the Unit 3 5A High Pressure Feedwater Heater (HPFWH) by Engineering. Should parts of this type reach the Steam Generator, significant tube damage may occur. After evaluating the potential for pieces similar to the loose parts found in 5A HPFWH to reach the Steam Generators, a decision was made to perform FOSAR activities in both Steam Generators, in which originally no SG inspections were planned. These FOSAR activities identified and retrieved foreign material from both Steam Generators. Steam Generator 2 had no indication of tube wear damage due to foreign material.

Steam Generator 1, however, had visual indications that a metallic foreign object (Flexitallic gasket material) caused wear on tube R167C84.

As a result of the foreign object wear mark that was discovered during FOSAR activities, Eddy Current Testing (ECT) was performed in Steam Generator I during 3R1 7 (documented in Section 5.0). The scope of the ECT included tubes adjacent to the foreign object that was removed as well as four other locations in the cold leg where irretrievable potential foreign objects were noted during the FOSAR inspection.

Tubesheet FOSAR was conducted on both SGs using a power cart mounted with a remotely operated camera, a video probe and retrieval tooling. The following areas were inspected:

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o Hot and cold leg top of tubesheet annulus region (Since Palo Verde SGs have a tri-pitch tube bundle, inspections were performed from the 30 degree, 90 degree and 150 degree angles all of the way around the SG). Approximately 5 tube rows into the bundle were viewed from the annulus.

o Hot and cold leg blowdown lanes (approximately 2 rows deep was viewed from the lane) o In Bundle Inspection in the area of Part 31-15 SG31 FOSAR Results As a result of the inspections performed in SG 31, 17 items were logged as foreign objects. The list of items is included in Table 8-1. Of the 17 items, 3 objects were removed. Two small pieces of tube scale/sludge rocks were removed (Parts 31-1 and 31-2). One piece of metallic material that is believed to be flexitallic gasket (Part 31-15) was also removed.

Of the 14 objects that were not retrieved from SG 3 1:

0 4 appear to be graphite material (Parts 31-3, 31-7, 31-11 and 31-12). A retrieval of Part 31-3 was attempted, however, the part was stuck in between tubes and the retrieval attempts were unsuccessful.

• One object appeared to be a sludge rock (Part 31-4) and attempts to retrieve the object were unsuccessful since it was stuck in between two tubes.

• One object, Part 31-5 (presumed to be a wire), was identified in the annulus during the initial inspection, however, when retrieval efforts were attempted, the piece was missing.

Inspections were re-performed in the entire annulus using both a cart from the wall of the wrapper and using a video probe, however, the piece was never found.

0 Eight objects were logged as unknown foreign objects (Parts 31-6, 31-8, 31-9, 31-10, 31-13, 31-14, 31-16 and 31-17). A review of these objects reveal that what was logged as Part 31-10 was actually Part 31-15 from a different angle and that part was retrieved.

Three of the unknown foreign objects, Parts 31-6, 31-16 and 31-17, were extremely small parts that appear to be either small sludge rocks or a light reflection in bundle.

Parts 31-8, 31-9, 31-13 and 3 1-14 are also small objects located in-bundle in areas that were inaccessible for more detailed visual inspections. Tubes in the area of Parts 31-8, 31-9, 31-13 and 31-14 were inspected during ECT and no indication of wear was observed.

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Table 8-1 SG 31 Foreign Objects Identified ID SG Pat ID Ode DWCl"o EWoo Row Cci Leg Lungt Heigt Widlkh Mdg RuiewW Afamnue Medt T#m Cafwlts n n h  ? 7 ID IndGc SG: 31 (17 items) 31- 319 1Wr'*201) 31-003_ 3190 31]/1/0 grpie ts 124 3CL. .125 .375 016 Li 00:12:03 31-00431 31 31 909D 1 21/201 31020 Be.

sludet ftft AN AN6 to CL 29 CL 2 2$1 .2$

211 .0, 016 [ 00:06:38 0D:D14:2 003 31 90 Ugrahi tts 124 33 CL 125 .375 116

• fl 00:110:

002 3 31-31-10121/201 10121/201 004 31 90 3 iudge tts 116 29CL .116 116 .116 L L 00:14:15 31- 31 90 10/213 U2 tts AN1 48CL 4 M2 .02 E FI 00:0D:00 005 3 1 [] ]

31- 10121/201 006 3190 3 UFO its 33 6CL .05 .05 105 L 00:04:00 31- 3 rpht tts 53 8 CL 1 1 05 [J00:05:45 3- 31 90 ~101201 UFO its 121 38 CL .116 .116 .116 ~]00:10:23 ove in back 31 3 1 90 1211201 Is 114 33 CL .116 .116 116 2 1700:08:59 one in back 017 319 UFO fl F] F 31- 31 90 101211201 UFO tsB 133 46 CL .116 .116 .116 J * [ 00:12-00 Pcsbl2 009 3 piecs 31- 10W211201 ma be g0lket 010 3190 3 UFO tts 165 84 CL 075 075 .075 F] 00]

00:17:40 uy 31- 190211201 319 3 graphite Uts 106 181 CL .116 .15 .116 U U L 00:22:30 31- 390 10121/201 012 90 31 1 graphite Its 102 183 CL .116 .116 .116 El U U 0024:00 31- 190211201 013 31390 UFO tts 95 178 CL .116 .116 .116 A F] F] 00:27:00 31- 10/21/201 014 31 90 3 UFO Us 134 157 CL .116 ,116 .116 21 U L 00:08:00 31- 90 2t42:

0115 3 U 1ST 84 Q. 3 2 .01 0] *M 300 .~W36-01 31- 10/21/201 016 31 90 3 UFO Us 135 4a CL .05 .05 .05 A E F] 00:25:00 SG32 FOSAR Results As a result of the inspections performed in SG 32, 20 items were logged as foreign objects. The list of items is included in Table 8-2. Of the 20 items, 6 objects were removed. One piece of metallic material that is believed to be flexitallic gasket (Part 32-18) was removed. There was no evidence of indications on the tubes surrounding the object. Three small pieces of graphite material were removed from SG 32 (Parts 32-1, 32-3, 32-4). A small sludge rock (Part 32-14) broke apart as it was being retrieved and a very small wire (Part 32-16) was removed from SG 32.

Of the 14 objects that were not retrieved from SG 32:

• 6 appear to be graphite material (Parts 32-2, 32-9, 32-10, 32-11. 32-19 and 32-20). A Retrieval of Part 32-2 was attempted, however, the part was stuck in between tubes and the retrieval attempts were unsuccessful.

• Part 32-15 appeared to be a small pile of sludge and/or scale and Part 32-17 appeared to be a sludge rock.

• Six objects were logged as unknown foreign objects (Parts 32-5, 32-6, 32-7, 32-8, 32-12, and 32-13). A video probe inspection was performed on parts 32-12 and 32-13 and the part could not be located, so the initial inspection most likely showed a reflection in a small amount of water. Parts 32-5, 32-6, 32-7 and 32-8 are extremely small in size (0.05"X0.05"X0.05") and are suspected to be either reflections of light from a small amount of water on the tubesheet or a small piece of sludge.

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All of the parts remaining in the SGs were shown by analysis to be acceptable for a two-cycle SG inspection interval before the potential tube wear degradation reaches the tube plugging limit and by extension the structural limit.

Table 8-2-SG 32 Foreign Objects Identified io SGPut UD Die DmaX EWAND Ru. Cdalg LfnM .W* WkUh Mddi Rared AMftnmed urns. raw Commnuta n n h  ? 7  ? ID IndcK SG: 32 (20 items) 32- ItWM201 001 32 90 3 Wapt ft AN 15¶CL 6 A .18 A 9] 1 001121 002- 3290 10/19f201 grahite Its 130 167 CL ,18 116 116 F F

• 1 001651 32- I1*20 032 32 90 1(im Urn*

f AN 174 CL 110 ý08 02 1 00zt1850 32- 10/191201 004 390 3 gre a AN 1S6CL .02 .18 UJ 0 R] I 0021:1 32- 32 90 10/191201 UFO ft 58 12 CL .05 .05 .05 J [1 _ 1 00:02:45 005 3 32- 32 90 1019201 UFO fts 73 16 CL .05 05 .05 []

E L] 1 00-04:00 ow6 3 32- 32 90 30/19/201 UFO Its 88 23 CL 05 .05 .05 U U 1 00-05:55 007 3A LL 1 32- 32 90 11201 UFO Its 147 148 CL 05 .05 .05 F r7 1 0017:50 008 3 32- 32 90 1 graphite Its 21 202 CL .3 .116 .116 1 0019:55 009 3 e -1 0fl19/55 32- 3 10/191201 graphite Its 168 101 CL .116 .116 .116 ] U 1 00)8:21 W

010 3 L 32- 10/191201 011 32 90 graphite Its 168 111 CL .116 .05 .116 l F F 1 00-09:06 32- 10/19/201 012 32 90 3 UFO Its 16 198 HL .05 05 .05 2 F] E 1 00:08:50 32- 3290 10/191201 UFO Its 93184 HL .05 .05 .05 * ] [] 1 0:070D 013 3 3

32 2 90 lui2°I siudSe ft AN 201 HL D0 .06 .0) El ;z 1 0002.15

,q wt 014 3 rokP 32- 7 0 1 /19/201 015 32270 3 pile Its 13 131 CL ,2 1 .02 U L L 1 00:02:15 3- 32 270 lae w*1M #A 15 128 CL 3 .005 00M ;A I 0003M3 016 3 32- 32270 !0/191201 rktdge Its 15 128 CL .116 .116 .15 l V V 1 1

000315 0:31 017 3 rock 019 32 270 3 goda ft 2 125 CL 1.5 .125 M0 1l 0031 amis 32- 32 270 3

10/19/201 graphite Its 2 143 HL .116 .116 .116 *] [J L 1 00:11:49 019 32- 10/19/201 020 3290 graphite its 87 16 CL .1 .02 M .02 V V 3 00701100 Foreign Object Wear Discovered During U3R17 SG 31 During U3R17, FOSAR identified one piece of metallic material that is believed to be flexitallic gasket (Part 31-15) shown in Figure 8.1. After Part 31-15 was removed there appeared to be evidence of a mark on tube R167C84, however, since the tube was one row in bundle the view from the annulus could not be definitive. An in-bundle inspection was performed in the area of R167C84 from 2 different angles. The in-bundle inspection revealed a mark on the back side of tube RI 67C84 (Figure 8.2). Eddy current testing was performed in the area of Part 31-15 and confirmed volumetric degradation on three tubes (R167C84; R166C85; R168C85) which were adjacent to the area where the part was retrieved.

No other wear was discovered in SG 31 during FOSAR inspection or during eddy current testing.

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Figure 8.1 Part 31-15 before Retrieval- Flexitallic Gasket Figure 8.2 Back side of Tube R167 C84 Wear Scar after Part 31-15 was Retrieved SG 32 No foreign object parts wear was found in this steam generator during FOSAR. Since this was a planned skip cycle and the FOSAR inspection found no evidence of wear, eddy current testing was not performed in SG 32.

Potential Loose Parts SG31 There were no reported Potential Loose Parts (PLPs) from the eddy current testing performed in SG

31. Since ECT did not identify wear or even PLP in the area of parts 31-8, 31-9, 31-13 and 31-14, it is reasonable to conclude that the required conditions necessary to produce wear with a significant wear rate do not exist in these locations.

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SG32 Since this was a planned skip cycle and the FOSAR inspection found no evidence of wear, eddy current testing was not performed in SG 32.

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TABLE 1 EXAMINATION

SUMMARY

SCOPE DESCRIPTION SG 31 Exam Description Extents Scope COLD LEG TEC-FDP 66 BOBBIN HOT LEG TSC-FDP 66 BOBBIN

• • HOT STRAIGHT na 0 RC

• • HOT U & SQUARE BEND na 0 RC

• • COLD STRAIGHT na 0 RC

• • COLD U & SQUARE BEND na 0 RC Notes:

1. ** These RC examinations were performed to evaluate bobbin coil indications.

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DAMAGE TABLE 2 INDICATION

SUMMARY

STEAM GENERATOR I

MECHANISM 31 WEAR 0%- 19% 0 20%- 29%

30%- 39% 0

> 40% 0 PLUGGED (0)

Possible Loose Parts (RC)

PLI0 PLP 0 PIUGGI D (0)

Volumetric Indications SVI/MVI 3*

PLUGGED PREVENTATIVE (0)

PLUGGED (0)

TOTAL PLUGGED /% (66 / 0.5%)

NOTES

1. *These SVIs were located adjacent to the PLP removal area.

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APPENDIX A TUBE SUPPORT DIAGRAM, LEGEND, and ANALYSIS CODES 13 of 24

PVNGS Steam Generator REPLACEMENTS WWJWýýýý2 ýýý Center of 08H to 08C Row I - 17.415 Row 2 - 19.736 Row 3 - 22.056 Row 4 - 24.377 Row 5 - 26.698 Row 6 - 29.019 I I 14 of 24

LEGEND ROW: Indicates the row number of a given tube.

COL: Indicates the column number of a given tube.

VOLTS: Indicates the peak-to-peak voltage of a given indication response.

DEG: The measured phase angle of a given indication response.

IND: Indicates the analysis code or PCT for percent PER or PCT: The percent through the tube wall of a given indication CHN: Indicates the channel used to make the call LOCN: Gives indication location at INCH1 to INCH2 relative to known landmarks such as supports, vertical straps, and batwings. Typical location codes are as follows:

1. 1 Vertical Strap ................................ VSI

1. 1 B atw ing ......................................... BW I

1. 1 Support Plate in Hot Leg .............. 01H

1. 7 Support Plate in Cold Leg ............. 07C Top Tube Sheet Cold Leg .................. TSC Tube End Hot Leg .............................. TEH Tube End Cold Leg ............................ TEC CRLEN: Indicates the flaw length, used to identify the length of a wear indication CRWID: Indicates the flaw width, typically used for cracks only CEG: Indicates the flaw length, typically used for cracks only BEGT and ENDT: Indicates the beginning and of the test; together they document the examination extent PDIA: Documents the probe diameter PTYPE: Documents the probe type CAL: Indicates calibration number L: Indicates the leg the examination was conducted from COM: This comment field is utilized to document comments 15 of 24

Analysis CODES:

A bsolute D rift .................................................................... AD I Bulge .................................................................................. BLG D ented Buff M ark .............................................................. D BM D eposit ............................................................................... D EP D ent .................................................................................... DNT D ata Q uality A cceptance .................................................... DQA D istorted Support Signal W ith Indication .......................... D SI Distorted Top of Tubesheet With Indication ..................... DTI G eom etric Indication .......................................................... G EO ID Chatter ........................................................................... IDC Indication Not Found ......................................................... IN F Indication N ot Reportable .................................................. IN R M ultiple A xial Indication ................................................... M AI M anufacturer Burnishing M ark .......................................... MBM M ixed M ode Indication ...................................................... MM I M ultiple Circum ferential Indication ................................... MCI M ultiple Volum etric Indication .......................................... M VI N o Detectable D efect ......................................................... ND D N o D iscontinuity Found ..................................................... ND F N on-Q uantifiable Indication .............................................. N QI N o Tube Sheet Expansion .................................................. N TE O bstructed .......................................................................... OB S O ver Expanded ................................................................... O XP Previous Bobbin Call ......................................................... PBC Possible Deposit ................................................................. PD P Positive Identification ........................................................ PID Positive Identification V erified .......................................... PIV Possible Loose Part w ith Indication ................................... PLI Possible Loose Part ............................................................ PLP Previous RC Call ................................................................ PRC Possible Support A nom aly ................................................. PSA Possible Support Indication ............................................... PSI Perm eability V ariation N oise ............................................. PVN Retest Bad D ata .................................................................. RB D Retest Identification Check ............................................ RIC Retest w ith M agnetic B ias RC Probe ................................. RM B Single A xial Indication ................................................ SA I Single C ircum ferential Indication ...................................... SC I Single Volum etric Indication ............................................. SV I Senior (Lead) A nalysis Review .................................... SR Sludge ................................................................................ SLG To Be Plugged .................................................................... TB P V olum etric Indication ........................................................ V OL 16 of 24

APPENDIX B STEAM GENERATOR 31

SUMMARY

DATA SHEETS 17 of 24

SG - 31 Listing of All Data for U3R17 FOSAR SG EC - All Probes Palo Verde 3 U3R17 PVNGS3 20131101 11/12/2013 11:23:23 S. --- - - --- +---- ----

+ +- -- - -- - ,- - - - - - - . -- . - - -- - - ----- --- --... . -- - -- - - - -+

I ROW COL VOLTS DEG IND PER CRLEN CHN LOCN INCHI INCH2 BEGT ENDT PDIA PTYPE CAL L IDX UTIL1 UTIL21

....----------- ---- ---- ---- +--- ----- ---- +---------- -------

I--- - - +-- - --

120 37 NDD TSC FDP .600 ZPAH z 1 C 37 120 37 NDD FDP TEC .610 NBAZ1 50 122 37 NDD TSC FDP .600 ZPAHZ 36 122 37 NDD FDP TEC .610 NBAZI 46 119 38 NDD TSC FDP *600 ZPAHZ 38 119 38 NDD FOP TEC .610 NBAZ1 49 121 38 NDD TSC FDP .600 ZPAHZ 35 121 38 NDD FDP TEC .610 NBAZ1 47 123 38 NDD TSC FDP .600 ZPAHZ 32 123 38 NDD FDP TEC .610 NBAZ1 45 118 39 NDD TSC FDP .600 ZPAHZ 56 118 39 NDD FDP TEC .610 NBAZ1 52 120 39 NDD TSC FDP .600 ZPAHZ 34 0_ 120 39 NDD FOP TEC .610 NBAZI 48 122 39 NDD TSC FDP .600 ZPAHZ 33 122 39 NDD FDP TEC .610 NBAZ1 44 124 39 NOD TSC FDP *600 ZPAHZ 60 124 39 NDD FDP TEC .610 NBAZ1 55 119 40 NDD TSC FDP *600 ZPAHZ 57 119 40 NDD FOP TEC .610 NBAZ1 53 121 40 NDD TSC FDP .600 ZPAHZ 58 121 40 NDD FOP TEC .610 NBAZ1 54 123 40 NOD TSC FDP .600 ZPAHZ 59 123 40 NDD FDP TEC .610 NBAZ1 56 131 44 NDD ZPAHZ TSC FDP .600 61 131 44 NDD FOP TEC .610 NBAZ1 58 133 44 NDD TSC FDP .600 ZPAHZ 64 133 44 NDD FDP TEC .610 NBAZ1 2 C 59 4-- - ----- -+ .---- .-----... +-....-- .....---- -+-- -- - - -

I ROW COL VOLTS DEG IND PER CRLEN CHN LOCN INCH1 INCH2 BEGT ENDT PDIA PTYPE CAL L IDX UTILl UTIL21

-- - ---------- +----.---- .---- +..4 ---. ---- +----+- ---- 4----...----..-+----. .- -+-....

-+-- . .- - - ---

1 ST Max

SG - 31 Listing of All Data for U3R17 FOSAR SG EC - All Probes Palo Verde 3 U3R17 PVNGS3 20131101 11/12/2013 11:23:23 4 +- .... .... - -÷ - +-- + .... ...... +--------------+----+---+- -- +- - - +

I ROW COL VOLTS DEG IND PER CRLEN CHN LOCN INCHI INCH2 BEGT ENDT PDIA PTYPE CAL L IDX UTILl UTIL21

........----------- +- ---- + ----.----.----- + -- - -.... +------ ---- +---

130 45 NDD TSC FOP .600 ZPAHZ 1 C 62 130 45 NDD FDP TEC .610 NBAZ1 2 C 57 132 45 NDD TSC FDP .600 ZPAHZ 1 C 31 132 45 NOD FDP TEC .610 NBAZ1 2 C 42 134 45 NOD TSC FDP .600 ZPAHZ 1 C 27 134 45 NDD FOP TEC .610 NBAZ1 2 C 41 131 46 NDD TSC FDP .600 ZPAHZ 1 C 30 131 46 NOD FOP TEC .610 NBAZ1 2 C 43 133 46 NOD TSC FOP .600 ZPAHZ 1 C 28 133 46 NOD FOP TEC .610 NBAZI 2 C 40 135 46 NOD TSC FDP .600 ZPAHZ 1 C 26 135 46 NDD FOP TEC .610 NBAZ1 2 C 51 130 47 NOD TSC FDP .600 ZPAHZ 1 C 63 130 47 NOD FOP TEC .610 NBAZI 2 C 60 132 47 NOD TSC FDP .600 ZPAHZ 1 C 29 132 47 NOD FOP TEC .610 NBAZ1 2 C 39 134 47 NDD TSC FDP .600 ZPAHZ 1 C 25 134 47 NOD FDP TEC .610 NBAZ1 2 C 38 136 47 NOD TSC FDP .600 ZPAHZ 1 C 67 136 47 NOD FDP TEC .610 NBAZ1 2 C 64 131 48 NOD TSC FDP .600 ZPAHZ 1 C 65 131 48 NOD FDP TEC .610 NBAZ1 2 C 61 133 48 NOD TSC FDP .600 ZPAHZ 1 C 66 133 48 NOD FDP TEC .610 NBAZ1 2 C 62 135 48 NDD TSC FDP .600 ZPAHZ 1 C 68 135 48 NDD FDP TEC .610 NBAZ1 2 C 63 164 81 NDD TSC FOP .600 ZPAHZ 1 C 70

..- F-----------+...+ --.--------......------------ +---..-+ ---.......... +- -- +---- --- +---

I ROW COL VOLTS DEG IND PER CRLEN CHN LOCN INCHI INCH2 BEGT ENDT PDIA PTYPE CAL L IDX UTILl UTIL21

..- ÷ ------------

+ ..----.. .- + 4 ÷ - ---- ÷+....+--......-÷----+÷+--- -- + -------- +--- +

2 ST Max

SG - 31 Listing of All Data for U3R17 FOSAR SG EC - All Probes Palo Verde 3 U3R17 PVNGS3 20131101 11/12/2013 11:23:23

- ----- ---- -4 I ROW COL VOLTS DEG IND PER CRLEN CHN LOCN INCHI INCH2 BEGT ENDT PDIA PTYPE CAL L IDX UTILl UTIL21 4- .. ..- I----.-+....

+ ----

+ -- +-- -- ---- +---- +---- +---- ----. + - .--- - + - -- +----+- - -- -- +"

164 81 NDD FDP TEC .610 NBAZ1 2 C 65 166 81 NDD TSC FDP .600 ZPAHZ 71 166 81 NDD FDP TEC .610 NBAZ1 67 163 82 NDD TSC FDP .600 ZPAHZ 69 163 82 NDD FDP TEC .610 NBAZ1 66 165 82 NDD TSC FDP .600 ZPAHZ 23 165 82 NDD FDP TEC .610 NBAZ1 36 167 82 NDD TSC FDP .600 ZPAHZ 15 167 82 NDD FDP TEC .610 NBAZ1 24 162 83 NDD TSC FDP .600 ZPAHZ 24 162 83 NDD FDP TEC .610 NBAZ1 37 164 83 NDD TSC FDP .600 ZPAHZ 22 164 83 NDD FDP TEC .610 NBAZ1 35 0

0 166 83 NDD TSC FDP .600 ZPAHZ 16 166 83 NDD FDP TEC .610 NBAZ1 23 168 83 NDD TSC FDP .600 ZPAHZ 14 168 83 NDD FDP TEC .610 NBAZ1 25 163 84 NDD TSC FDP .600 ZPAHZ 21 163 84 NDD FOP TEC .610 NBAZ1 34 165 84 NDD TSC FDP .600 ZPAHZ 17 165 84 NDD FDP TEC .610 NBAZ1 22 167 84 .35 98 SVI 21 .32 P3 TSC .28 TSC FDP .600 ZPAHZ 7 167 84 .15 133 NQI P1 TSC .35 FDP TEC .610 NBAZ1 26 169 84 NDD TSC FDP .600 ZPAHZ 9 169 84 NDD FOP TEC .610 NBAZ1 31 162 85 NDD TSC FDP .600 ZPAHZ 20 162 85 NDD FDP TEC .610 NBAZ1 33

-...- F- ---- -------- +----+ 4-- --- +--------+ -- ----- +-- --- t-- --. - ......-------... ---. - -- +

I ROW COL VOLTS DEG IND PER CRLEN CHN LOCN INCH1 INCH2 BEGT ENDT PDIA PTYPE CAL L IDX UTIL1 UTIL21

- ....---------- +---- ----------- ----.---- -- ---- +---+- ----- +------+- -- +--- +

3 ST Max

SG - 31 Listing of All Data for U3R17 FOSAR SG EC - All Probes Palo Verde 3 U3R17 PVNGS3 20131101 11/12/2013 11:23:23

+ .... -- - ------- -4 -- .... + ---- ------- + - --...+- ...... + ...... +--- -- +- - - +

I ROW COL VOLTS DEG IND PER CRLEN CHN LOCN INCH1 INCH2 BEGT ENDT PDIA PTYPE CAL L IDX UTIL1 UTIL21

- -4 + -+....----.+--------+---+-+ .... .... ....-------.--------+- .. +..- .+--+-+-+-- ------

164 85 NDD TSC FDP .600 ZPAHZ 1 C 18 164 85 NDD FDP TEC .610 NBAZ1 21 166 85 .27 273 SVI 17 .32 P3 TSC .22 TSC FDP .600 ZPAHZ 13 166 85 NOD FDP TEC .610 NBAZ1 27 168 85 .12 68 SVI 9 .26 P3 TSC .30 TSC FDP 600 ZPAHZ 10 168 85 NDD FOP TEC .610 NBAZ1 30 163 86 NDD TSC FDP .600 ZPAHZ 19 163 86 NDD FDP TEC .610 NBAZ1 20 165 86 NDD TSC FDP .600 ZPAHZ 12 165 86 NDD FOP TEC .610 NBAZ1 28 167 86 NDD TSC FDP .600 ZPAHZ 11 167 86 NDD FOP TEC .610 NBAZ1 29 169 86 NDD TSC FDP .600 ZPAHZ 8 169 86 NDD FOP TEC .610 NBAZ1 32 0

.r* 168 87 NDD TSC FDP .600 ZPAHZ 72 168 87 NDD FOP TEC .610 NBAZ1 68 133 156 NDD TSC FDP .600 ZPAHZ 47 133 156 NDD FDP TEC .610 NBAZ1 14 135 156 NDD TSC FDP .600 ZPAHZ 51 135 156 NDD FOP TEC .610 NBAZ1 15 132 157 NDD TSC FDP .600 ZPAHZ 48 132 157 NDD FDP TEC .610 NBAZ1 13 134 157 NDD TSC FDP .600 ZPAHZ 50 134 157 NDD FOP TEC .610 NBAZ1 16 136 157 NDD TSC FDP .600 ZPAHZ 52 136 157 NDD FOP TEC .610 NBAZ1 19 133 158 NDD TSC FDP .600 ZPAHZ 49 133 158 NDD FOP TEC .610 NBAZ1 2 C 17

- -- - --- --- . -+---- - --. - -- - --- ---- -------- - -+- -

--- 4-- ---- +- - - ---

I ROW COL VOLTS DEG IND PER CRLEN CHN LOCN INCH1 INCH2 BEGT ENDT PDIA PTYPE CAL L IDX UTIL1 UTIL21

- ...--- +----+----.----..---+----+----- ---.....- ------- + -- - ---.. -- +----+-- - --- +-

4 ST Max

SG - 31 Listing of All Data for U3R17 FOSAR SG EC - All Probes Palo Verde 3 U3R17 PVNGS3 20131101 11/12/2013 11:23:23

+ ....- - +-----

+ ---- + ...... ... - - +-- ---- +-- -+ ....-- + - - ---- --- +

I ROW COL VOLTS DEG IND PER CRLEN CHN LOCN INCH1 INCH2 BEGT ENDT PDIA PTYPE CAL L IDX UTIL1 UTIL21 S-F------ -+..----+- -- ---- +----+ -------- +-----+---+---+-+-- +- ------- +---

135 158 NOD TSC FDP .600 ZPAHZ 1 C 53 135 158 NOD FDP TEC .610 NBAZ1 2 C 18 94 177 NOD TSC FDP .600 ZPAHZ 1 C 41 94 177 NOD FOP TEC .610 NBAZ1 2 C 12 96 177 NOD TSC FDP .600 ZPAHZ 1 C 42 96 177 NOD FOP TEC .610 NBAZ1 2 C 8 93 178 NOD TSC FDP .600 ZPAHZ 1 C 40 93 178 NOD FOP TEC .610 NBAZ1 2 C 5 95 178 NOD TSC FDP .600 ZPAHZ 1 C 43 95 178 NOD FDP TEC .610 NBAZ1 2 C 7 97 178 NOD TSC FDP .600 ZPAHZ 1 C 46 97 178 NOD FOP TEC .610 NBAZ1 2 C 9 92 179 NOD TSC FDP .600 ZPAHZ 1 C 73 92 179 NOD FOP TEC .610 NBAZ1 2 C 69 94 179 NOD TSC FDP .600 ZPAHZ 1 C 44 94 179 NOD FOP TEC .610 NBAZ1 2 C 6 96 179 NDD TSC FDP .600 ZPAHZ 1 C 45 96 179 NDD FOP TEC .610 NBAZ1 2 C 10 93 180 NDD TSC FDP .600 ZPAHZ 1 C 74 93 180 NDD FOP TEC .610 NBAZ1 2 C 70 95 180 NDD TSC FDP .600 ZPAHZ 1 C 75 95 180 NDD FOP TEC .610 NBAZ1 2 C 71 S..------------- ---------- +....----..----- ---- +..----+- +-+- +--+----.+--- ---

I ROW COL VOLTS DEG IND PER CRLEN CHN LOCN INCHI INCH2 BEGT ENDT PDIA PTYPE CAL L IDX UTIL1 UTIL21 S..-- ------------ --------------- +--....-------- -----.. +- - +--+----. +--- ---

Tubes: 66 Records: 132 5 ST Max

APPENDIX C EXAMINATION SCOPE AND HISTORY PLUG MAP 23 of 24

SG - 31 Cold Leg Eddy Current Inspection Plan for FOSAR Foreign Objects Test All Indicated Tubes (66) from FDP to TEC with Bobbin and TSC -3" to FDP +3" with +PT - CRDR 4474012 Palo Verde U3R17 PVNGS3 3RSG

• 53 Stay Rod

• 66 Plugged Tube

• 66 Tube Tested with Bobbin and

+PT in U3R17 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200 170 170 165 165 160 155 I - ~-

160 155 150 145 140

___ tI I 150 145 140 135 135 130 130 125 _________ *1 I-- 125 120 120 MO 115 115 0b 110 110 N). 105 -~105 100 100 95 95 90 - 90 85 85 80 -T --------- - ------- -- __ ___ 80 75 70

__I I-65 70 60 S____--- - - - 60 55 -- - ---- 55 50 45 -7_____I___ -~_ _

lii ______ _______

45 40 35

-t __ __ _ --A 40

-4 35 30 25 25 20 .i 20 15 10

---

_______ -r--* ___ -F '1' 15 5 5 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200 Wesbnghs E.ect4c, ConpanyLLC-STMax 11/1212013 115017