RA-21-0223, Inservice Inspection (ISI) and Steam Generator Inspection (SG-ISI) Report

From kanterella
(Redirected from ML21214A160)
Jump to navigation Jump to search

Inservice Inspection (ISI) and Steam Generator Inspection (SG-ISI) Report
ML21214A160
Person / Time
Site: Catawba Duke Energy icon.png
Issue date: 08/02/2021
From: Hare M
Duke Energy Carolinas
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
RA-21-0223
Download: ML21214A160 (35)
v • d • e


Text

Mandy Hare

( ., DUKE Nuclear Support Services Manager Catawba Nuclear Station ENERGY Duke Energy CN03CH l 4800 Concord Rd York, SC 29745 803.701.2218 Mandy.Hare@duke-energy.com Serial: RA-21-0223 August 2, 2021 United States Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Catawba Nuclear Station, Unit No. 2 Docket No. 50-414 / Renewed License No. NPF-52

Subject:

Catawba Unit 2, Refuel 24 (C2R24) Inservice Inspection (ISI) and Steam Generator Inspection (SG-ISI) Report Ladies and Gentlemen:

In accordance with Section XI of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code, Duke Energy is providing its Inservice Inspection (ISI) Summary Report for Catawba Nuclear Station, Unit No. 2, Refuel 24 (C2R24). Also included is the Steam Generator Inservice Inspection (SG-ISI) Summary Report for Catawba Nuclear Station, Unit No.

2, Refuel 24 (C2R24).

Enclosure 1 contains the C2R24 Owners Activity Summary Report.

Enclosure 2 contains the SG-ISI tube inspection report for C2R24.

This submittal contains no regulatory commitments. Should you have any questions concerning this letter, or require additional information, please contact Art Zaremba, Manager - Nuclear Fleet Licensing, at 980-373-2062.

Sincerely, Mandy Hare Nuclear Support Services Manager, Catawba Nuclear Station

U.S. Nuclear Regulatory Commission Page 2 Serial: RA-21-0223 Enclosure(s):

1. Owners Activity Summary Report For Refueling Outage 24
2. Steam Generator Inservice Inspection Report For Refueling Outage 24 NDE cc: (w/ all enclosures)

K. Cotton, NRC Project Manager, NRR cc: (without SG data)

L. Dudes, NRC Regional Administrator, Region II J.D. Austin, NRC Senior Resident Inspector, Catawba Nuclear Station Serial: RA-21-0223 Enclosure 1 Owners Activity Summary Report for Refueling Outage 24

DUKE ENERGY INSERVICE INSPECTION

SUMMARY

REPORT UNIT 2 CATAWBA 2021 REFUELING OUTAGE C2R24 (Outage 24)

Location: 4800 Concord Road, York, SC, 29745 NRC Docket No. 50-414 Commercial Service Date: August 19, 1986 Owner: Duke Energy 526 South Church St.

Charlotte, NC 28201-1006 Revision 0 TDM8384 (130489) dc=com, dc=duke-energy, dc=ent, dc=nam, ou=Accounts, ou=Personal, ou=PNTransitional, en=TDM8384 (130489), email=Timothy.Myers@duke-energy.com 2021.07.21 09:56:00 -04'00' Originated By:

SLM410S (137S06) dc=com, dc=duke-energy, dc=ent, dc=nam, ou=Accounts, ou=Personal, ou=PNTransitional, cn=SLM4105 (137506), email=Steve.Mays@duke-energy.com 2021 .07.2111:08:16-04'00' Checked By:

MAP9681 Digitally signed by MAP9681 (102140)

Approved By: (102140) Date: 2021.07.21 12:02:21 -04'00'

CASE N-532-5 FORM OAR-1 OWNER'S ACTIVITY REPORT Report Number Owner's Activity Report for Refueling Outage C2R24 Plant Catawba Nuclear Station, 4800 Concord Road, York, SC 29745 Unit No. 2 Commercial service date August 19, 1986 Refueling outage no. C2R24 (if applicable)

Current inspection interval Fourth Inspection Interval (ISI), Third Inspection Interval (Containment ISI)

(1st, 2nd, 3rd, 4th, other)

Current inspection period Second Inspection Period (ISI and Containment ISI)

(1st, 2nd, 3rd)

Edition and Addenda of Section XI applicable to the ASME Section XI 2007 Edition through 2008 inspection plans Addenda Date and revision of inspection plans See Attachment - Page 2 Edition and Addenda of Section XI applicable to repair/replacement activities, if different than the inspection plans Same as above The following Code Cases are permitted by the ISI Plan and Addenda:

4th Interval: N-513-3, N-532-5, N-586-1, N-600, N-613-1, N-639, N-643-2, N-648-1, N-651, N-705, N-706-1, N-712, N-716-1, N-722-1, N-729-6, Code Cases used for inspection N-731, N-735, N-747, N-751, N-765, N-770-5, N-771, N-775, N-776, and evaluation: N-786-1, N-798, N-800, N-805, N-823, N-825, N-843, N-845 & N-854 (if applicable)

CERTIFICATE OF CONFORMANCE I certify that (a) the statements made in this report are correct; (b) the examinations and tests meet the Inspection Plan as required by the ASME Code,Section XI; and (c) the repair/replacement activities and evaluations supporting the completion of C2R24 conform to the requirements of Section XI.

(refueling outage number)

TDM8384 (130489) dc=com, dc=duke-energy, dc=ent, dc=nam, ou=Accounts, ou=Personal, ou=PNTransitional, en=TDM8384 (130489), email=Timothy.Myers@duke-energy.com 2021.07.21 09:56:27 -04'00' Signed Tim Myers, ISI Program Owner Date CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of South Carolina and employed by OneCIS Insurance Company Lynn, MA have inspected the items described in this Owner's Activity Report, and state that, to the best of my knowledge and belief, the Owner has performed all activities represented by this report in accordance with the requirements of Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the repair/replacement activities and evaluation described in this report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Dustin Mallet Inspector's Signature

? Commissions 15196 AI, IS, I, N, R; SC 363 National Board, State, Province, and Endorsements Date 07/21/2021 Page 1 of 4

CASE N-532-5 Attachment Catawba Unit 2 Refuel Outage 24, Inservice Inspection Report The Catawba Nuclear Station Unit 2 Fourth Ten Year Inservice Inspection (ISI) Plan complies with 10CFR50.55a(g), (79 FR 73462, Dec. 11, 2014), which implements, by reference, the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code,Section XI, 2007 Edition with 2008 Addenda.

This summary report is being submitted pursuant to the reporting requirements of ASME Section XI as amended by ASME Code Case N-532-5, "Repair/Replacement Activity Documentation Requirements and lnservice Inspection Summary Report Preparation and Submission Section XI, Division 1".

Contained within this summary report are the form OAR- 1 (Owner's Activity Report) and Tables 1 and 2 of Code Case N-532-5 for Catawba Nuclear Station during cycle 24 and Refueling Outage 24 (C2R24).

C2R24 is the second outage of the second ISI period in the fourth inspection interval. C2R24 is the second outage of the second Containment period in the third inspection interval. This report reviewed all Repair/Replacement activities from October 10, 2019 through May 3, 2021, cycle 24.

Date and Revision of Inservice Inspection Plans:

I. Fourth Interval Inservice Inspection Plans

1. The following documents comprise the Catawba Nuclear Station 4th Interval Inservice Inspection Plan for Unit 2 (Class 1, 2, and 3 Components):
a. Catawba Nuclear Station Unit 1 and Unit 2 - Fourth Interval lnservice Inspection Plan, Document #CISI-1462.10-0040-ISI PLAN, Rev. 6, dated 01/11/2021.
b. Fourth Interval Inservice Inspection Outage Schedule Catawba Nuclear Station Unit 2, Document #CISI-1462.10-0040-UNIT 2, Rev. 3, dated 01/11/2021.
2. The following documents comprise the Catawba Nuclear Station 4th Interval Inservice Inspection Pressure Test Plan for Unit 2:
a. Catawba Nuclear Station Units 1 and 2 Fourth Inspection Interval Inservice Inspection Pressure Test Plan, Document #CISI-1462.20.0040-PTPlan, Rev. 2, dated 11/18/2020.

II. Third Interval Containment Inservice Inspection Plan

1. The following document comprises the Catawba Nuclear Station 3 rd Interval Containment Inservice Inspection Plan for Unit 1 (Class MC):
a. Catawba Nuclear Station Units 1 and 2 - Third Interval Containment Inservice Inspection Plan, Document #CN-ISIC3-1042-0001, Rev. 10, dated 11/19/2020.

Page 2 of 4

CASE N-532-5 TABLE 1 ITEMS WITH FLAWS OR RELEVANT CONDITIONS THAT REQUIRED EVALUATION FOR CONTINUED SERVICE Examination Category and Item Description Evaluation Description Item Number Area identified in NCR #02349250 Boric acid residue found during ISI Pressure C-H I C7.10 was evaluated by Engineering and Test Zone, 2NI-003L-B found to be acceptable.

Area identified in NCR #02333771 was Boric acid residue found during ISI Pressure C-H I C7.10 evaluated by Engineering and found to Test Zone, 2NI-005L-B be acceptable.

Area identified in NCR #02342929 Boric acid residue found during ISI Pressure C-H I C7.10 was evaluated by Engineering and Test Zone, 2NS-001L-B found to be acceptable.

Area identified in NCR #02334790 was Boric acid residue found during ISI Pressure C-H I C7.10 evaluated by Engineering and found to Test Zone, 2NV-002L-B be acceptable.

Area identified in NCR #02343794 Boric acid residue found during ISI Pressure C-H I C7.10 was evaluated by Engineering and Test Zone, 2NV-005L-B found to be acceptable.

Area identified in NCR #02345784 Boric acid residue found during ISI Pressure C-H I C7.10 was evaluated by Engineering and Test Zone, 2NV-006L-B found to be acceptable.

Area identified in NCR #02354578 Boric acid residue found during ISI Pressure C-H I C7.10 was evaluated by Engineering and Test Zone, 2NS-002L-B found to be acceptable.

Area identified in NCR #02334792 Boric acid residue found during ISI Pressure D-B I D2.10 was evaluated by Engineering and Test Zone, 2KF-001L-C found to be acceptable.

Area identified in NCR #02361262 Boric acid residue found during ISI Pressure D-B I D2.10 was evaluated by Engineering and Test Zone, 2KF-002L-C found to be acceptable.

Area identified in NCR #02345142 Boric acid residue found during ISI Pressure D-B I D2.10 was evaluated by Engineering and Test Zone, 2NV-001L-C found to be acceptable.

Out of tolerance setting identified in Cold load setting on variable spring support NCR # 02377769 was evaluated by F-A / F1.12 2-R-ND-1000 found out of tolerance Engineering and found to be acceptable.

Page 3 of 4

CASE N-532-5 TABLE 2 ABSTRACT OF REPAIR/REPLACEMENT ACTIVITIES REQUIRED FOR CONTINUED SERVICE Repair /

Code Item Description Description of Work Date Completed Replacement Class Plan Number 1 2NC-HX-B 2B SG Tube plugging 4/14/2021 20415442-05 1 2NC-HX-C 2C SG Tube plugging 4/14/2021 20415443-05 1 2NC-HX-D 2D SG Tube plugging 4/14/2021 20415445-05 Replace 2" pipe downstream and Nuclear Service Water 3 upstream of valve 10/27/2020 20426186-01 System piping 1RN24 due to pin hole leaks Perform weld overlay of RVH pen #74 defect 1 2NC-RX-HEAD per WCAP-15987-P 4/26/2021 20461807-09 (See Relief Request RA-21-0133)

Page 4 of 4 Serial: RA-21-0223 Enclosure 2 Steam Generator Inservice Inspection Report for Refueling Outage 24

Steam Generator In-service Inspection Summary Report Catawba Nuclear Station Unit 2 EOC-24 April 2021 Location: 4800 Concord Road, York South Carolina 29745 NRC Docket No. 50-414 \ License No. NPF-52 National Board No. 173 Commercial Service Date: August 19, 1986 Owner: Duke Energy Corporation 526 South Church St.

Charlotte, N.C. 28201-1006 Revision 0 DBM0638(12SS9S) dc=com,dc,,,duke-energy,(k,,,ent,dc,,,nam,ou,,,AcC01Jnts,ou,,,Personat ou =PNTransltlona~cn=DBM0638 (12559S), emall=Oanlel.Mayes@duke-Prepared By: Dan Mayes Date: __________________

energy.com 2021.07.2110:45:36-04'00' Digitally signed byTAThuli Reviewed By: Tim Thulien TAThuli (224860) ~.~k,.o,.,, ,,,o,,.s-o**oo* Date:__________________

Digitally signed by Etienne Etienne Fonteneau Approved By: -------------------

Etienne Fonteneau Fonteneau ~:,~~,~~~~~~ 1 Date: __________________

FORM OAR-1 OWNERS ACTIVITY REPORT Report Number Owners Activity Report for Steam Generator Inspection Outage EOC-24 Plant Catawba Nuclear Station, 4800 Concord Road, York, SC 29745 Unit No. 2 Commercial service date 08/19/1986 Refueling outage no. EOC-24 (if applicable)

Current inspection interval Fourth Interval (1st, 2nd, 3rd, 4th, other)

Current inspection period Second Period (1st, 2nd, 3rd)

Edition and Addenda of Section XI applicable to the inspection 2007 Edition through 2008 Addendum plans Date and revision of inspection August 19, 2015, Revision 0 (Document #C-ISIG-0169.030.0040) plans Edition and Addenda of Section XI applicable to repair/replacement activities, if different than the inspection plans Same as Plan Code Cases N-532-5 used:

(if applicable)

CERTIFICATE OF CONFORMANCE I certify that (a) the statements made in this report are correct; (b) the examinations and tests meet the Inspection Plan as required by the ASME Code,Section XI; and (c) the repair/replacement activities and evaluations supporting the completion of EOC-24 conform to the requirements of Section XI.

(refueling outage number)

DBM0638 (125595) dc=eom, dc=duke-energy, dc=ent, dc=nam, ou=Accounts, ou=Personal, ou=PNTransitional, cn=DBM0638 (125595), email=Daniel.Mayes@duk~nergy.com Signed D.B. Mayes 2021.07.2110:46:05-04'00' Date 7/21/2021 CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of South Carolina and employed by OneCIS Insurance Company of Lynn, MA have inspected the items described in this Owners Activity Report, and state that, to the best of my knowledge and belief, the Owner has performed all activities represented by this report in accordance with the requirements of Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the repair/replacement activities and evaluation described in this report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Dustin Mallet Inspectors Signature

? Commissions 15196; AI, IS, I, N, R SC 363 National Board, State, Province, and Endorsements Date 07/21/2021

Catawba Nuclear Unit 2 Form OAR-1 Owners Activity Report Table 1 Items with Flaws or Relevant Conditions that Required Evaluation for Continued Service Examination Category and Item Description Evaluation Description Item Number No ASME Section XI Category B-Q Acceptance Requirement Steam Generator Tubing in U-Tube Design B16.20 Exceeded (Reference Attached Inspection Report)

Catawba Nuclear Unit 2 Form OAR-1 Owners Activity Report Table 2 Abstract of Repair/Replacement Activities Required for Continued Service Code Repair / Replacement Item Description Description of Work Date Completed Class Plan Number Plugged and stabilized 7 tubes Steam Generator 2B 1 via rolled plug and wire rope 4/14/2021 20415442-05 (2 NC HX B) stabilizer Plugged and stabilized 2 tubes Steam Generator 2C 1 via rolled plug and wire rope 4/13/2021 20415443-05 (2 NC HX C) stabilizer Plugged and stabilized 7 tubes Steam Generator 2D 1 via rolled plug and wire rope 4/14/2021 20415445-05 (2 NC HX D) stabilizer

Catawba 2 EOC24 Steam Generator Tube Inspection Report (reference Catawba technical Specification 5.6.8)

Summary of inspections and inspection results:

a) The scope of inspections performed on each SG The inspection scope for all four steam generators was as follows:

Bobbin / Array Inspection

  • 100% full length (except Row 1-6 U-bend region)
  • Row 1-6 hot leg (HL) and cold leg (CL) straight section Array Inspection
  • 100% Row 1- 6 U-bend Pre-planned Array Special Interest
  • 100% ofDNT?.2.0V
  • 100% of DNT at top TSP (08H, 09C +/- 1.25 inch)
  • Confirmed tubesheet array indications fr om2EOC23
  • TSP indications sized with bobbin or array from 2EOC23
  • Confirmed PLP from 2EOC23
  • New high stress tubes New Array Special Interest
  • Possible loose part (PLP) calls with a one tube box-in of target tube
  • Two tube box-in of target tube of known foreign object location
  • New wear indications
  • All bobbin I-codes
  • New dent calls Visual Inspection
  • Previously installed plugs
  • Bowl cladding (NSAL-12-1) inspection
  • Entire channel head surface
  • Area of missing stainless steel clad in 2DHL
  • Tube slippage monitoring (based on bobbin results)
  • Foreign object search and retrieval (FOSAR) of the tubesheet and preheater in all 4 steam generators .

Miscellaneous

  • Tube slippage monitoring (based on bobbin results)
  • +POINT and/or Ghent probe on any crack-like indication detected (aside from
  • those exempted by H*)
  • +POINT and/or Ghent probe on loose part TSP wear indications (as needed)
b. Degradation mechanisms found Degradation found included wear at support structures, wear from foreign objects, and crack-like indications near the tube ends
c. Non-destructive examination techniques utilized for each degradation mechanism The bobbin / array combo probe was utilized for the detection wear at support structures, and wear from foreign objects The array probe was used for detection of crack-like indications near the tube ends The bobbin probe was used to size wear at support structures. The array probe was used to size the foreign object wear
d. Location, orientation (if linear), and measured sizes (if available) of service induced indications.

The complete listing for service induced indications is attached Tubes with anti-vibration bar (AVB) wear indications SG2 A - 84 tubes/159 indications SG 2B - 23 tubes/35 indications SG2 C - 49 tubes/74 indications SG2 D - 76 tubes/109 indications Total - 232 tubes/3 77 indications The 95th percentile growth rate for AVB wear is 2. 05% TW/EFPY Tubes with tube support plate wear indications SG2 A - 2 tubes/2 indications SG2 B - 12 tubes/12 indications SG2 C - 4 tubes/4 indications SG2 D - 5 tubes/5 indications Total - 23 tubes/23 indications 21 broached TSP wear-2 baffle plate (drilled) wear The maximum growth observed in single flaw for TSP wear is 3.4% TW/EFPY.

Tubes with tube presumed foreign object wear indications SG2 A - 12 tubes/ 12 indications SG2 B - 24 tubes/25 indications SG2 C - 7 tubes/7 indications SG2 D - 11 tubes/13 indications Total - 44 tubes/47 indications Tubes with crack like indications within the tubesheet at the tube end SG2 A - 18 tubes/19 indications SG2 B - 213 tubes/222 indications SG2 C - 24 tubes/24 indications SG2 D - 41 tubes/46 indications Total - 296 tubes/311 indications

e. Number of tubes plugged during the inspection outage for each degradation mechanism Steam Generator 2A:

There were no tubes to plug.

Steam Generator 2 B:

There were seven (7) tubes plugged Six (6) were for new high stress tubes. One (1) tube was plugged due to wear from a foreign object that was still present The tubes plugged were as follows:

SG 2B Count Row Tube Reason 1 12 75 FOwearat 3H 2 36 99 New High Stress Tube 3 37 52 New High Stress Tube 4 37 64 New High Stress Tube 5 37 66 New High Stress Tube 6 37 98 New High Stress Tube 7 37 99 New High Stress Tube Steam Generator 2 C:

There were two (2) tubes plugged. Both were for new high stress tubes. The tubes plugged were as follows:

SG 2C Count Row Tube Reason 1 36 92 New High Stress Tube 2 36 97 New High Stress Tube Steam Generator 2 D There were seven (7) tubes plugged Six (6) were for new high stress tubes. One (1) tube was plugged due to wear from a foreign object The tubes plugged were as follows:

SG 2D Count Row Tube Reason 1 17 26 New High Stress Tube 2 44 78 New High Stress Tube 3 48 81 New High Stress Tube 4 49 54 New High Stress Tube 5 49 55 New High Stress Tube 6 49 76 New High Stress Tube 7 36 100 FO wear at AVE 3 at 43 %TW

f. The number and percentage of tubes plugged to date, and the effective plugging percentage in each steam generator.

Steam Generator1 2A 2B 2C 2D Total Prior to EOC-24 88 133 77 108 407 EOC2 - 4 0 7 2 7 16 Total 88 141 79 1 15 423

% Plugged 1. 93 3.09 1.73 2.52 2.31 1= There are 4578 tubes per steam generator

g. The results of condition monitoring, including the results of tube pulls and in-situ testing.

The EFPYfor EOC-24 was 1.46 EFPY. The cumulative EFPYfor EOC-21 was 25.67 and EOC-23 was 27.10 and EOC-23 was 28.51 and EOC-24 was 29.97. The EFPY for EOC-1 was 0.92 Condition monitoring was met for all degradation. All structural and leakage performance criteria were met for wear with more than adequate margin An NDE maximum depth of55.5%TW or less for AVB wear is sufficient to demonstrate a minimum degraded tube burst pressure of 3L1P, 4392 psi, at 0.95 probability with 50%

co,ifidence. The worst-case depth for A VB wear observed during the inspection was an NDE depth of 36%TW.

An NDE maximum depth call of 50.1%TW or less for broached TSP wear is sufficient to demonstrate a minimum degraded tube burst pressure of 3L1P, 4392 psi, at 0.95 probability with 50% co,ifidence. The worst-case depth for broached TSP wear observed during the inspection was an NDE depth of 34%TW.

An NDE maximum depth call of 51.2%TW or less for drilled TSP wear is sufficient to demonstrate a minimum degraded tube burst pressure of 3L1P, 4392 psi, at 0.95 probability with 50% co,ifidence. The worst-case depth for drilled TSP wear observed during the inspection was an NDE depth of 11%TW.

An NDE maximum depth call of 53%TW or less for foreign object wear is sufficient to demonstrate a minimum degraded tube burst pressure of 3L1P, 4392 psi, at 0.95 probability with 50% confidence. The worst-case depth for foreign object wear observed during the inspection was an NDE depth of 43%TW.

No degradation was detected in the plug visual Bowl cladding inspections at EOC-21 did identify an area of missing stainless-steel cladding in the Catawba Unit 2 SG D hot leg channel head The area of missing stainless-steel cladding was inspected at EOC2 - 4 no changes were noted There was no degradation detected in any of the other bowl cladding inspections.

No in-situ tests or tube pulls were performed.

Foreign, Object Search and Retrieval (FOSAR) was performed in areas ofknown foreign, object accumulation or where indicated by eddy current examination. FOSAR was performed at the top of tube sheet and the waterbox/preheater section. Eight metallic objects were found in either the TTS or waterbox/preheater section Two objects were removed and the remaining six were evaluated for continued operation as is for three cycles An upper bundle visual inspection was performed in the steam generator 2A, no degradation was detected The broached blockage was much improved over the previous inspection. No foreign, objects were found in either the upper bundle of the 2A SG.

A top of tubesheet sludge lancing was performed in all four steam generators during EOC-24. There were 67 pounds removed from the A SG, 54.5 pounds removed from the B SG, 72 pounds removed from the C SG and 76 pounds removed from the DSG. The total deposits removed was 269.5 pounds.

A DMT was performed approximately 5375 pounds ofdeposit were removed No other secondary side work was performed

h. For Unit 2, the primary to secondary LEAKAGE rate observed in each SG (if it is not practical to assign leakage to an individual SG, the entire primary to secondary LEAKAGE should be conservatively assumed to be from one SG) during the cycle preceding the inspection which is the subject of the report.

There was no primary to secondary leakage above detection limits during the preceding cycle 24 operation.

i. For Unit 2, the calculated leakage rate from the portion of the tubes below 14.01 inches from the top of the tubesheet for the most limiting accident in the most limiting SG. In addition, if the calculated accident leakage rate from the most limiting accident is less than 3.27 times the maximum primary to secondary LEAKAGE rate, the report shall describe how it was determined.

There was no calculated leakage from the portion of the tubes more than 14.01 inches from the top of the tubesheet, for the most lim iting accident in the most limiting SG.

j. For Unit 2, the results of monitoring for tube axial displacement (slippage). If slippage is discovered, the implications of the discovery and corrective action shall be provided.

No indications of slippage were detected

List of Service Induced Indications Catawba 2, EOC-24

SG - 2A Attachment 1 - Service Induced Indications Catawba Nuclear Station 2 2EOC24 DDP 20210401 05/18/2021 13:46:39

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l 32 12 .31 152 PCT 8 P4 AV3 .12 WAR TEC TEH .610 ZBAXB 30 H 40l l l l 30 13 .63 133 PCT 14 P4 AV3 .30 WAR TEC TEH .610 ZBAXB 60 H 157l l l l 32 15 .26 43 PCT 7 P4 AV2 -.14 WAR TEC TEH .610 ZBAXB 28 H 53l l l l 33 15 .24 143 PCT 7 P4 AV3 -.03 WAR TEC TEH .610 ZBAXB 28 H 56l l l l 32 16 .20 68 PCT 6 P4 AV2 .00 WAR TEC TEH .610 ZBAXB 28 H 54l l l l 35 16 .51 61 PCT 12 P4 AV2 -.02 WAR TEC TEH .610 ZBAXB 28 H 49l l 35 16 1.02 119 PCT 20 P4 AV3 .16 WAR TEC TEH .610 ZBAXB 28 H 49l l l l 36 17 .47 156 PCT 11 P4 AV1 -.09 WAR TEC TEH .610 ZBAXB 30 H 29l l 36 17 .43 158 PCT 10 P4 AV2 -.09 WAR TEC TEH .610 ZBAXB 30 H 29l l 36 17 .70 14 PCT 15 P4 AV3 .02 WAR TEC TEH .610 ZBAXB 30 H 29l l l l 37 17 .31 154 PCT 8 P4 AV2 -.09 WAR TEC TEH .610 ZBAXB 30 H 32l l 37 17 .72 70 PCT 15 P4 AV3 .00 WAR TEC TEH .610 ZBAXB 30 H 32l l l l 38 17 .53 72 PCT 12 P4 AV1 -.14 WAR TEC TEH .610 ZBAXB 30 H 34l l 38 17 .94 69 PCT 18 P4 AV3 .00 WAR TEC TEH .610 ZBAXB 30 H 34l l 38 17 .44 35 PCT 10 P4 AV4 .03 WAR TEC TEH .610 ZBAXB 30 H 34l l l l 36 18 .16 143 PCT 5 P4 AV3 .17 WAR TEC TEH .610 ZBAXB 28 H 33l l l l 40 18 .39 34 PCT 10 P4 AV1 -.09 WAR TEC TEH .610 ZBAXB 28 H 42l l 40 18 .31 133 PCT 8 P4 AV2 -.21 WAR TEC TEH .610 ZBAXB 28 H 42l l 40 18 1.53 87 PCT 25 P4 AV3 .00 WAR TEC TEH .610 ZBAXB 28 H 42l l l l 38 19 .32 80 PCT 8 P4 AV1 -.21 WAR TEC TEH .610 ZBAXB 28 H 38l l l l 37 21 .29 160 PCT 8 P4 AV3 .14 WAR TEC TEH .610 ZBAXB 28 H 37l l l l 38 21 .79 76 PCT 16 P4 AV2 -.14 WAR TEC TEH .610 ZBAXB 30 H 31l l 38 21 .33 154 PCT 8 P4 AV4 .00 WAR TEC TEH .610 ZBAXB 30 H 31l l l l 39 21 .56 152 PCT 12 P4 AV1 -.02 WAR TEC TEH .610 ZBAXB 30 H 33l l 39 21 .47 115 PCT 11 P4 AV2 -.02 WAR TEC TEH .610 ZBAXB 30 H 33l l 39 21 .44 155 PCT 10 P4 AV3 .05 WAR TEC TEH .610 ZBAXB 30 H 33l l l l 38 22 .68 105 PCT 14 P4 AV2 -.23 WAR TEC TEH .610 ZBAXB 30 H 8l l 38 22 .37 33 PCT 9 P4 AV3 -.03 WAR TEC TEH .610 ZBAXB 30 H 8l l l l 30 23 .22 79 PCT 6 P4 AV2 .02 WAR TEC TEH .610 ZBAXB 60 H 132l l l l 33 23 .45 152 PCT 10 P4 AV2 -.07 WAR TEC TEH .610 ZBAXB 30 H 17l l 33 23 .23 120 PCT 6 P4 AV3 -.08 WAR TEC TEH .610 ZBAXB 30 H 17l l l

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

1 ST Max

SG - 2A Attachment 1 - Service Induced Indications Catawba Nuclear Station 2 2EOC24 DDP 20210401 05/18/2021 13:46:39

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l 38 23 .60 160 PCT 13 P4 AV2 -.05 WAR TEC TEH .610 ZBAXB 30 H 10l l l l 43 23 .37 32 PCT 9 P4 AV1 .00 WAR TEC TEH .610 ZBAXB 26 H 168l l 43 23 .73 142 PCT 15 P4 AV2 -.02 WAR TEC TEH .610 ZBAXB 26 H 168l l 43 23 .31 29 PCT 8 P4 AV3 .10 WAR TEC TEH .610 ZBAXB 26 H 168l l l l 44 23 .57 161 PCT 12 P4 AV1 -.07 WAR TEC TEH .610 ZBAXB 26 H 169l l 44 23 1.42 100 PCT 23 P4 AV2 -.23 WAR TEC TEH .610 ZBAXB 26 H 169l l 44 23 3.65 89 PCT 36 P4 AV3 -.17 WAR TEC TEH .610 ZBAXB 26 H 169l l 44 23 1.02 110 PCT 19 P4 AV4 .19 WAR TEC TEH .610 ZBAXB 26 H 169l l l l 42 24 .59 38 PCT 14 P4 AV2 -.09 WAR TEC TEH .610 ZBAXB 24 H 174l l 42 24 .48 20 PCT 12 P4 AV3 .05 WAR TEC TEH .610 ZBAXB 24 H 174l l l l 31 25 .57 286 PCT 7 P3 02H -.59 WAR TEC TEH .610 ZBAXB 62 H 105l l l l 38 25 .42 100 PCT 10 P4 AV3 -.12 WAR TEC TEH .610 ZBAXB 28 H 9l l l l 44 25 .32 37 PCT 8 P4 AV1 -.12 WAR TEC TEH .610 ZBAXB 24 H 180l l 44 25 .72 106 PCT 16 P4 AV2 -.23 WAR TEC TEH .610 ZBAXB 24 H 180l l 44 25 .51 102 PCT 12 P4 AV3 .05 WAR TEC TEH .610 ZBAXB 24 H 180l l l l 18 26 .70 121 PCT 17 207 14C .39 17902.1 NA .20 .37 TEC TEH .610 ZYAXP 65 H 46l l l l 45 26 1.01 103 PCT 20 22 15C .53 17902.1 NA .16 .29 TEC TEH .610 ZYAXP 25 H 153l l 45 26 .68 127 PCT 14 P4 AV2 -.18 WAR TEC TEH .610 ZBAXB 26 H 153l l 45 26 1.63 84 PCT 25 P4 AV3 .20 WAR TEC TEH .610 ZBAXB 26 H 153l l l l 37 27 .66 146 PCT 14 P4 AV2 -.14 WAR TEC TEH .610 ZBAXB 26 H 123l l l l 43 27 .57 130 PCT 11 P2 15C .74 WAR TEC TEH .610 ZBAXB 26 H 138l l l l 47 27 .86 137 PCT 17 P4 AV2 -.20 WAR TEC TEH .610 ZBAXB 26 H 150l l 47 27 2.52 92 PCT 31 P4 AV3 .22 WAR TEC TEH .610 ZBAXB 26 H 150l l 47 27 .35 60 PCT 8 P4 AV4 .12 WAR TEC TEH .610 ZBAXB 26 H 150l l l l 35 28 .41 161 PCT 10 P4 AV2 -.02 WAR TEC TEH .610 ZBAXB 26 H 119l l 35 28 1.02 114 PCT 19 P4 AV3 -.10 WAR TEC TEH .610 ZBAXB 26 H 119l l l l 41 30 .39 109 PCT 10 P4 AV2 .07 WAR TEC TEH .610 ZBAXB 24 H 146l l l l 23 31 .36 98 PCT 12 190 03H -.77 17902.1 NA .30 .29 TEC TEH .610 ZYAXP 63 H 26l l l l 44 31 .47 148 PCT 11 P4 AV1 .00 WAR TEC TEH .610 ZBAXB 26 H 137l l 44 31 .49 42 PCT 11 P4 AV2 .00 WAR TEC TEH .610 ZBAXB 26 H 137l l l l 24 33 .47 113 PCT 14 42 02H -.96 17902.1 NA .32 .29 TEC TEH .610 ZYAXP 65 H 27l l l l 36 33 .35 131 PCT 8 P4 AV4 .05 WAR TEC TEH .610 ZBAXB 26 H 93l

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

2 ST Max

SG - 2A Attachment 1 - Service Induced Indications Catawba Nuclear Station 2 2EOC24 DDP 20210401 05/18/2021 13:46:39

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l l l 41 36 .54 103 PCT 13 P4 AV3 .00 WAR TEC TEH .610 ZBAXB 24 H 91l l 41 36 .20 147 PCT 6 P4 AV4 .07 WAR TEC TEH .610 ZBAXB 24 H 91l l l l 42 38 2.07 85 PCT 28 207 05H .98 17902.1 25 .32 .37 TEC TEH .610 ZYAXP 25 H 51l l l l 37 39 .36 95 PCT 9 P4 AV2 .02 WAR TEC TEH .610 ZBAXB 24 H 40l l l l 41 44 1.80 91 PCT 26 P4 AV1 -.05 WAR TEC TEH .610 ZBAXB 22 H 63l l 41 44 1.24 47 PCT 21 P4 AV2 .15 WAR TEC TEH .610 ZBAXB 22 H 63l l 41 44 .93 156 PCT 18 P4 AV3 .02 WAR TEC TEH .610 ZBAXB 22 H 63l l l l 28 48 .57 86 PCT 21 2 18C .63 17902.3 22 .20 .44 TEC TEH .610 ZYAXP 59 H 57l l l l 37 51 1.08 87 PCT 21 207 05H .89 17902.1 NA .32 .29 TEC TEH .610 ZYAXP 17 H 43l l l l 21 57 .61 90 PCT 16 186 05H -.63 17902.1 NA .32 .29 TEC TEH .610 ZYAXP 55 H 138l l l l 40 70 .29 141 PCT 8 P4 AV2 -.16 WAR TEC TEH .610 ZBAXB 14 H 26l l l l 48 70 .41 158 PCT 11 P4 AV1 .05 WAR TEC TEH .610 ZBAXB 12 H 105l l l l 49 70 .38 135 PCT 10 P4 AV1 -.05 WAR TEC TEH .610 ZBAXB 12 H 106l l 49 70 .32 170 PCT 9 P4 AV3 .00 WAR TEC TEH .610 ZBAXB 12 H 106l l l l 4 72 1.07 110 PCT 29 203 04H -.72 17902.3 .23 .37 08H TEH .610 ZYAXP 85 H 25l l l l 24 73 .48 246 PCT 14 207 10C -.67 17902.1 NA .39 .22 TEC TEH .610 ZYAXP 49 H 34l l l l 49 73 .38 119 PCT 10 P4 AV3 .00 WAR TEC TEH .610 ZBAXB 12 H 99l l l l 24 74 .35 115 PCT 12 207 10C -.70 17902.1 NA .18 .29 TEC TEH .610 ZYAXP 49 H 33l l l l 40 74 .83 269 PCT 18 22 04H .40 17902.1 NA .39 .22 TEC TEH .610 ZYAXP 9 H 113l l l l 41 75 .48 122 PCT 12 P4 AV2 .07 WAR TEC TEH .610 ZBAXB 10 H 117l l l l 37 77 .59 61 PCT 14 P4 AV2 -.07 WAR TEC TEH .610 ZBAXB 12 H 71l l 37 77 .80 112 PCT 18 P4 AV3 .13 WAR TEC TEH .610 ZBAXB 12 H 71l l 37 77 .39 140 PCT 10 P4 AV4 .02 WAR TEC TEH .610 ZBAXB 12 H 71l l l l 41 77 .35 113 PCT 10 P4 AV2 .13 WAR TEC TEH .610 ZBAXB 12 H 80l l l l 41 81 2.03 85 PCT 30 P4 AV2 .00 WAR TEC TEH .610 ZBAXB 12 H 44l l 41 81 .94 55 PCT 20 P4 AV3 .05 WAR TEC TEH .610 ZBAXB 12 H 44l l 41 81 .38 42 PCT 10 P4 AV4 .00 WAR TEC TEH .610 ZBAXB 12 H 44l l l l 42 81 .56 130 PCT 14 P4 AV2 -.07 WAR TEC TEH .610 ZBAXB 12 H 23l l 42 81 .24 136 PCT 7 P4 AV3 .03 WAR TEC TEH .610 ZBAXB 12 H 23l

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

3 ST Max

SG - 2A Attachment 1 - Service Induced Indications Catawba Nuclear Station 2 2EOC24 DDP 20210401 05/18/2021 13:46:39

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l 42 81 .32 137 PCT 9 P4 AV4 .02 WAR TEC TEH .610 ZBAXB 12 H 23l l l l 41 83 .62 99 PCT 14 P4 AV2 -.05 WAR TEC TEH .610 ZBAXB 10 H 79l l 41 83 .64 129 PCT 14 P4 AV3 .02 WAR TEC TEH .610 ZBAXB 10 H 79l l 41 83 .29 143 PCT 8 P4 AV4 .16 WAR TEC TEH .610 ZBAXB 10 H 79l l l l 49 83 .30 219 PCT 8 P4 AV1 -.24 WAR TEC TEH .610 ZBAXB 12 H 17l l l l 41 85 .21 138 PCT 6 P4 AV2 .17 WAR TEC TEH .610 ZBAXB 10 H 42l l 41 85 .89 135 PCT 18 P4 AV3 .36 WAR TEC TEH .610 ZBAXB 10 H 42l l 41 85 .24 128 PCT 6 P4 AV4 -.17 WAR TEC TEH .610 ZBAXB 10 H 42l l l l 42 85 1.64 115 PCT 26 P4 AV2 -.07 WAR TEC TEH .610 ZBAXB 6 H 38l l 42 85 .51 146 PCT 12 P4 AV3 .15 WAR TEC TEH .610 ZBAXB 6 H 38l l l l 48 85 .18 141 PCT 5 P4 AV3 -.02 WAR TEC TEH .610 ZBAXB 6 H 31l l 48 85 .24 157 PCT 6 P4 AV4 .18 WAR TEC TEH .610 ZBAXB 6 H 31l l l l 39 86 .33 142 PCT 9 P4 AV3 .03 WAR TEC TEH .610 ZBAXB 12 H 9l l 39 86 .47 53 PCT 12 P4 AV4 -.02 WAR TEC TEH .610 ZBAXB 12 H 9l l l l 48 86 .29 50 PCT 7 P4 AV3 .03 WAR TEC TEH .610 ZBAXB 6 H 35l l 48 86 .29 158 PCT 7 P4 AV4 .07 WAR TEC TEH .610 ZBAXB 6 H 35l l l l 46 88 .22 73 PCT 6 P4 AV2 -.05 WAR TEC TEH .610 ZBAXB 6 H 51l l 46 88 .29 115 PCT 7 P4 AV3 .02 WAR TEC TEH .610 ZBAXB 6 H 51l l l l 38 89 .42 138 PCT 10 P4 AV2 -.17 WAR TEC TEH .610 ZBAXB 2 H 95l l 38 89 .31 18 PCT 8 P4 AV3 .05 WAR TEC TEH .610 ZBAXB 2 H 95l l l l 31 90 .24 29 PCT 6 P4 AV2 -.12 WAR TEC TEH .610 ZBAXB 32 H 144l l l l 41 90 .21 132 PCT 6 P4 AV2 -.10 WAR TEC TEH .610 ZBAXB 2 H 104l l 41 90 .41 128 PCT 10 P4 AV3 .02 WAR TEC TEH .610 ZBAXB 2 H 104l l l l 42 90 .35 78 PCT 9 P4 AV3 .05 WAR TEC TEH .610 ZBAXB 8 H 8l l l l 44 90 .25 112 PCT 7 P4 AV3 .00 WAR TEC TEH .610 ZBAXB 6 H 15l l l l 45 90 .18 150 PCT 5 P4 AV2 .05 WAR TEC TEH .610 ZBAXB 6 H 23l l 45 90 .52 100 PCT 12 P4 AV3 -.02 WAR TEC TEH .610 ZBAXB 6 H 23l l l l 38 91 .55 130 PCT 13 P4 AV2 -.15 WAR TEC TEH .610 ZBAXB 4 H 83l l 38 91 .25 157 PCT 7 P4 AV3 -.29 WAR TEC TEH .610 ZBAXB 4 H 83l l 38 91 .47 107 PCT 11 P4 AV4 .00 WAR TEC TEH .610 ZBAXB 4 H 83l l l l 42 91 .54 84 PCT 12 P4 AV3 .05 WAR TEC TEH .610 ZBAXB 6 H 9l l 42 91 .30 113 PCT 8 P4 AV4 .07 WAR TEC TEH .610 ZBAXB 6 H 9l l l

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

4 ST Max

SG - 2A Attachment 1 - Service Induced Indications Catawba Nuclear Station 2 2EOC24 DDP 20210401 05/18/2021 13:46:39

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l 43 91 .35 94 PCT 9 P4 AV1 -.02 WAR TEC TEH .610 ZBAXB 6 H 12l l 43 91 .61 101 PCT 13 P4 AV2 .12 WAR TEC TEH .610 ZBAXB 6 H 12l l 43 91 .51 111 PCT 12 P4 AV3 .02 WAR TEC TEH .610 ZBAXB 6 H 12l l 43 91 .81 118 PCT 17 P4 AV4 -.02 WAR TEC TEH .610 ZBAXB 6 H 12l l l l 45 91 .27 148 PCT 7 P4 AV1 -.07 WAR TEC TEH .610 ZBAXB 6 H 24l l 45 91 .72 125 PCT 15 P4 AV2 .00 WAR TEC TEH .610 ZBAXB 6 H 24l l 45 91 .54 114 PCT 12 P4 AV3 .05 WAR TEC TEH .610 ZBAXB 6 H 24l l 45 91 1.09 102 PCT 20 P4 AV4 .02 WAR TEC TEH .610 ZBAXB 6 H 24l l l l 41 92 .92 118 PCT 19 P4 AV3 .00 WAR TEC TEH .610 ZBAXB 4 H 56l l 41 92 .42 71 PCT 11 P4 AV4 .10 WAR TEC TEH .610 ZBAXB 4 H 56l l l l 44 92 .43 60 PCT 10 P4 AV3 .05 WAR TEC TEH .610 ZBAXB 6 H 20l l 44 92 .37 96 PCT 9 P4 AV4 .05 WAR TEC TEH .610 ZBAXB 6 H 20l l l l 33 93 .51 129 PCT 12 P4 AV2 -.10 WAR TEC TEH .610 ZBAXB 2 H 84l l l l 37 93 .29 25 PCT 8 P4 AV4 .02 WAR TEC TEH .610 ZBAXB 4 H 50l l l l 38 93 .56 131 PCT 13 P4 AV2 -.22 WAR TEC TEH .610 ZBAXB 2 H 105l l 38 93 .38 125 PCT 10 P4 AV3 .02 WAR TEC TEH .610 ZBAXB 2 H 105l l l l 41 93 .54 111 PCT 13 P4 AV3 .03 WAR TEC TEH .610 ZBAXB 4 H 57l l 41 93 .25 126 PCT 7 P4 AV4 .02 WAR TEC TEH .610 ZBAXB 4 H 57l l l l 43 93 .31 96 PCT 8 P4 AV3 .02 WAR TEC TEH .610 ZBAXB 6 H 19l l 43 93 .34 24 PCT 8 P4 AV4 -.26 WAR TEC TEH .610 ZBAXB 6 H 19l l l l 38 94 .28 54 PCT 7 P4 AV2 -.12 WAR TEC TEH .610 ZBAXB 2 H 58l l l l 40 94 1.34 100 PCT 23 P4 AV2 -.24 WAR TEC TEH .610 ZBAXB 2 H 62l l 40 94 .23 65 PCT 6 P4 AV4 -.02 WAR TEC TEH .610 ZBAXB 2 H 62l l l l 41 94 .93 103 PCT 19 P4 AV2 -.24 WAR TEC TEH .610 ZBAXB 2 H 64l l 41 94 1.73 96 PCT 27 P4 AV3 .00 WAR TEC TEH .610 ZBAXB 2 H 64l l 41 94 .31 68 PCT 8 P4 AV4 .02 WAR TEC TEH .610 ZBAXB 2 H 64l l l l 40 95 1.19 115 PCT 22 P4 AV2 -.24 WAR TEC TEH .610 ZBAXB 2 H 63l l 40 95 .61 110 PCT 14 P4 AV4 .02 WAR TEC TEH .610 ZBAXB 2 H 63l l l l 38 96 2.67 104 PCT 33 P4 AV2 -.26 WAR TEC TEH .610 ZBAXB 4 H 51l l 38 96 .62 78 PCT 14 P4 AV3 .00 WAR TEC TEH .610 ZBAXB 4 H 51l l 38 96 .44 122 PCT 11 P4 AV4 -.02 WAR TEC TEH .610 ZBAXB 4 H 51l l l l 39 96 .27 101 PCT 7 P4 AV3 .18 WAR TEC TEH .610 ZBAXB 4 H 53l l l l 38 97 3.51 98 PCT 36 P4 AV2 -.31 WAR TEC TEH .610 ZBAXB 4 H 52l l 38 97 1.15 120 PCT 22 P4 AV3 .05 WAR TEC TEH .610 ZBAXB 4 H 52l

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

5 ST Max

SG - 2A Attachment 1 - Service Induced Indications Catawba Nuclear Station 2 2EOC24 DDP 20210401 05/18/2021 13:46:39

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l 38 97 .78 112 PCT 17 P4 AV4 .00 WAR TEC TEH .610 ZBAXB 4 H 52l l l l 33 98 .38 127 PCT 10 P4 AV2 -.05 WAR TEC TEH .610 ZBAXB 2 H 78l l l l 36 98 .22 137 PCT 6 P4 AV4 .00 WAR TEC TEH .610 ZBAXB 2 H 51l l l l 38 98 .62 99 PCT 14 P4 AV2 -.22 WAR TEC TEH .610 ZBAXB 2 H 65l l 38 98 .33 73 PCT 9 P4 AV3 .05 WAR TEC TEH .610 ZBAXB 2 H 65l l 38 98 .27 147 PCT 7 P4 AV4 .10 WAR TEC TEH .610 ZBAXB 2 H 65l l l l 33 99 .33 142 PCT 9 P4 AV2 -.10 WAR TEC TEH .610 ZBAXB 2 H 43l l l l 34 99 .23 95 PCT 6 P4 AV3 .09 WAR TEC TEH .610 ZBAXB 2 H 45l l 34 99 .25 105 PCT 7 P4 AV4 -.05 WAR TEC TEH .610 ZBAXB 2 H 45l l l l 33 100 .50 142 PCT 12 P4 AV3 .16 WAR TEC TEH .610 ZBAXB 2 H 44l l l l 31 102 .40 148 PCT 10 P4 AV2 -.22 WAR TEC TEH .610 ZBAXB 32 H 13l l 31 102 .33 145 PCT 8 P4 AV4 .05 WAR TEC TEH .610 ZBAXB 32 H 13l l l l 31 103 1.02 92 PCT 20 P4 AV2 -.20 WAR TEC TEH .610 ZBAXB 32 H 25l l 31 103 .41 31 PCT 10 P4 AV3 .04 WAR TEC TEH .610 ZBAXB 32 H 25l l l l 26 106 .54 138 PCT 12 P4 AV3 .10 WAR TEC TEH .610 ZBAXB 30 H 114l

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

Tubes: 97 Records: 173 6 ST Max

SG - 2B Attachment 1 - Service Induced Indications Catawba Nuclear Station 2 2EOC24 DDP 20210401 05/18/2021 13:46:38

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l 11 2 .17 145 PCT 3 P3 05H -.65 WAR TEC TEH .610 ZBAXB 32 H 85l l l l 9 10 .38 159 PCT 5 P3 11C -.55 WAR TEC TEH .610 ZBAXB 76 H 48l l l l 12 19 .48 269 PCT 14 207 05H 1.17 17902.3 .25 2.36 TEC TEH .610 ZYAXP 39 H 113l l l l 23 23 .22 110 PCT 3 P3 10C -.84 WAR TEC TEH .610 ZBAXB 36 H 72l l l l 45 24 .39 38 PCT 9 P4 AV4 .03 WAR TEC TEH .610 ZBAXB 4 H 52l l l l 21 25 1.13 71 PCT 21 207 06H 1.33 17902.1 .27 .29 TEC TEH .610 ZYAXP 39 H 44l l l l 47 27 .29 48 PCT 6 P4 AV2 -.07 WAR TEC TEH .610 ZBAXB 8 H 68l l 47 27 .87 108 PCT 15 P4 AV3 .00 WAR TEC TEH .610 ZBAXB 8 H 68l l 47 27 .60 135 PCT 12 P4 AV4 .08 WAR TEC TEH .610 ZBAXB 8 H 68l l l l 9 34 .46 141 PCT 6 P3 11C -.51 WAR TEC TEH .610 ZBAXB 74 H 125l l l l 35 34 .37 113 PCT 12 94 04H 1.73 17902.1 13 .27 .29 TEC TEH .610 ZYAXP 7 H 113l l l l 4 40 .77 110 PCT 18 138 14C 1.05 17902.1 NA .36 .37 09C TEC .610 ZYAXP 15 C 80l l l l 18 40 1.13 110 PCT 21 207 14C .37 17902.1 .23 .29 TEC TEH .610 ZYAXP 53 H 71l l l l 9 42 .60 130 PCT 8 P3 11C -.44 WAR TEC TEH .610 ZBAXB 72 H 118l l l l 41 45 .23 264 PCT 3 P3 03H -.63 WAR TEC TEH .610 ZBAXB 10 H 37l l l l 1 46 .58 117 PCT 21 203 05H -.74 17902.3 .23 .29 08H TEH .610 ZYAXP 87 H 19l l l l 34 46 .65 120 PCT 22 170 06H .75 17902.3 NA .18 .29 TEC TEH .610 ZYAXP 9 H 53l l l l 20 47 1.11 81 PCT 21 18 18C .42 17902.1 .27 .44 TEC TEH .610 ZYAXP 51 H 76l l l l 21 48 .66 98 PCT 22 203 18C .51 17902.3 18 .16 .44 TEC TEH .610 ZYAXP 51 H 79l l l l 45 50 .30 141 PCT 7 P2 18C -.19 WAR TEC TEH .610 ZBAXB 12 H 81l l l l 27 52 .71 270 PCT 17 207 09C -.75 17902.3 .27 .37 TEC TEH .610 ZYAXP 49 H 32l l l l 25 53 .16 257 PCT 2 P3 10C -.72 WAR TEC TEH .610 ZBAXB 50 H 33l l l l 47 54 .25 126 PCT 10 90 01H .49 17902.1 NA .18 .29 TEC TEH .610 ZYAXP 9 H 97l l l l 44 55 .43 251 PCT 13 207 06H -.68 17902.1 NA .18 .29 TEC TEH .610 ZYAXP 11 H 100l l l l 15 56 .64 118 PCT 13 P4 AV4 -.38 WAR TEC TEH .610 ZBAXB 56 H 20l l l l 35 56 .23 167 PCT 5 P4 AV2 .14 WAR TEC TEH .610 ZBAXB 16 H 10l

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

1 ST Max

SG - 2B Attachment 1 - Service Induced Indications Catawba Nuclear Station 2 2EOC24 DDP 20210401 05/18/2021 13:46:38

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l l l 45 56 1.32 72 PCT 33 182 06H -.78 17902.3 33 .27 .37 TEC TEH .610 ZYAXP 15 H 16l l l l 11 58 .28 212 PCT 4 P3 04H -.59 WAR TEC TEH .610 ZBAXB 56 H 27l l l l 21 58 1.22 86 PCT 32 14 05H -.80 17902.3 32 .34 .52 TEC TEH .610 ZYAXP 55 H 147l l l l 21 59 .63 282 PCT 22 26 05H -1.07 17902.3 19 .25 .52 TEC TEH .610 ZYAXP 55 H 148l l 21 59 .71 281 PCT 23 86 05H -.75 17902.3 22 .25 .52 TEC TEH .610 ZYAXP 55 H 148l l l l 36 59 .61 271 PCT 8 P3 06H -.52 WAR TEC TEH .610 ZBAXB 16 H 29l l l l 39 59 .32 141 PCT 7 P4 AV4 .13 WAR TEC TEH .610 ZBAXB 14 H 29l l l l 49 63 .43 115 PCT 9 P4 AV1 -.03 WAR TEC TEH .610 ZBAXB 14 H 60l l l l 40 69 .30 103 PCT 7 P4 AV2 -.10 WAR TEC TEH .610 ZBAXB 14 H 128l l l l 36 71 .27 80 PCT 10 82 05H 1.22 17902.1 15 .30 .29 TEC TEH .610 ZYAXP 13 H 119l l l l 12 75 1.28 60 PCT 22 30 03H -.84 17902.1 NA .32 .29 TEC TEH .610 ZYAXP 55 H 70l l 12 75 1.28 60 SVI 30 03H -.84 LPI LAR TEC TEH .610 ZYAXP 55 H 70l l l l 29 75 .84 114 PCT 18 207 05H 3.86 17902.1 17 .32 .29 TEC TEH .610 ZYAXP 61 H 40l l l l 38 75 .38 116 PCT 8 P4 AV2 -.07 WAR TEC TEH .610 ZBAXB 18 H 26l l l l 49 76 .40 159 PCT 9 P4 AV1 .05 WAR TEC TEH .610 ZBAXB 22 H 32l l l l 40 84 .29 92 PCT 7 P4 AV2 -.12 WAR TEC TEH .610 ZBAXB 24 H 56l l l l 12 85 .76 84 PCT 24 74 03H -.61 17902.3 23 .32 .44 TEC TEH .610 ZYAXP 67 H 138l l l l 33 85 .43 148 PCT 6 P3 09C -.35 WAR TEC TEH .610 ZBAXB 22 H 92l l l l 38 85 .43 34 PCT 9 P4 AV3 .18 WAR TEC TEH .610 ZBAXB 24 H 51l l l l 47 88 .47 166 PCT 10 P4 AV2 -.15 WAR TEC TEH .610 ZBAXB 24 H 111l l 47 88 .42 136 PCT 9 P4 AV4 .02 WAR TEC TEH .610 ZBAXB 24 H 111l l l l 33 90 .53 111 PCT 20 2 05H .97 17902.3 .23 .37 TEC TEH .610 ZYAXP 23 H 76l l l l 44 91 .77 73 PCT 14 P4 AV2 -.03 WAR TEC TEH .610 ZBAXB 22 H 135l l 44 91 .20 16 PCT 5 P4 AV3 .02 WAR TEC TEH .610 ZBAXB 22 H 135l l 44 91 .26 164 PCT 6 P4 AV4 .02 WAR TEC TEH .610 ZBAXB 22 H 135l l l l 37 95 .31 31 PCT 7 P4 AV2 -.05 WAR TEC TEH .610 ZBAXB 24 H 114l l l l 35 96 .33 111 PCT 7 P4 AV2 -.21 WAR TEC TEH .610 ZBAXB 28 H 26l

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

2 ST Max

SG - 2B Attachment 1 - Service Induced Indications Catawba Nuclear Station 2 2EOC24 DDP 20210401 05/18/2021 13:46:38

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l 35 96 .39 47 PCT 8 P4 AV3 .11 WAR TEC TEH .610 ZBAXB 28 H 26l l l l 38 96 .24 117 PCT 4 P3 05H -.75 WAR TEC TEH .610 ZBAXB 26 H 32l l l l 40 96 .25 86 PCT 6 P4 AV2 -.08 WAR TEC TEH .610 ZBAXB 28 H 42l l l l 36 98 .49 89 PCT 10 P4 AV4 -.15 WAR TEC TEH .610 ZBAXB 28 H 30l l l l 37 98 .58 154 PCT 10 P4 AV2 -.13 WAR TEC TEH .610 ZBAXB 26 H 28l l 37 98 .44 91 PCT 8 P4 AV3 .04 WAR TEC TEH .610 ZBAXB 26 H 28l l l l 36 99 .47 97 PCT 9 P4 AV4 -.09 WAR TEC TEH .610 ZBAXB 28 H 43l l l l 37 99 .76 146 PCT 14 P4 AV4 -.15 WAR TEC TEH .610 ZBAXB 28 H 32l l l l 3 102 .28 80 PCT 14 203 05H 1.63 17902.3 13 08H TEH .610 ZYAXP 97 H 32l l l l 32 102 .33 155 PCT 6 P4 AV1 -.02 WAR TEC TEH .610 ZBAXB 26 H 44l l l l 32 103 .57 142 PCT 11 P4 AV2 -.16 WAR TEC TEH .610 ZBAXB 28 H 44l l 32 103 .44 48 PCT 9 P4 AV3 .02 WAR TEC TEH .610 ZBAXB 28 H 44l l 32 103 .49 107 PCT 10 P4 AV4 -.09 WAR TEC TEH .610 ZBAXB 28 H 44l l l l 30 104 .38 134 PCT 8 P4 AV1 -.09 WAR TEC TEH .610 ZBAXB 62 H 145l l 30 104 .21 162 PCT 5 P4 AV2 .04 WAR TEC TEH .610 ZBAXB 62 H 145l l 30 104 .46 148 PCT 10 P4 AV3 -.02 WAR TEC TEH .610 ZBAXB 62 H 145l l 30 104 .26 18 PCT 6 P4 AV4 .29 WAR TEC TEH .610 ZBAXB 62 H 145l l l l 7 109 .47 106 PCT 14 207 18C .55 17902.1 NA .25 .37 TEC TEH .610 ZYAXP 71 H 84l l l l 7 110 .28 102 PCT 11 207 18C .55 17902.1 NA .27 .37 TEC TEH .610 ZYAXP 71 H 85l l l l 4 111 .46 87 PCT 14 18 04H -.88 17902.1 NA .36 .37 08H TEH .610 ZYAXP 99 H 119l

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

Tubes: 59 Records: 73 3 ST Max

SG - 2C Attachment 1 - Service Induced Indications Catawba Nuclear Station 2 2EOC24 DDP 20210401 05/18/2021 13:46:39

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l 27 9 1.73 120 PCT 27 P4 AV2 -.31 WAR TEC TEH .610 ZBAXB 66 H 26l l l l 28 10 .62 72 PCT 15 P4 AV2 -.26 WAR TEC TEH .610 ZBAXB 66 H 37l l l l 29 10 .27 58 PCT 8 P4 AV2 -.26 WAR TEC TEH .610 ZBAXB 66 H 41l l 29 10 .48 98 PCT 12 P4 AV3 .18 WAR TEC TEH .610 ZBAXB 66 H 41l l l l 28 11 .31 135 PCT 8 P4 AV2 -.02 WAR TEC TEH .610 ZBAXB 62 H 55l l l l 29 12 .45 130 PCT 11 P4 AV2 -.24 WAR TEC TEH .610 ZBAXB 62 H 67l l 29 12 .28 139 PCT 7 P4 AV3 .09 WAR TEC TEH .610 ZBAXB 62 H 67l l l l 31 12 .93 78 PCT 20 P4 AV3 .00 WAR TEC TEH .610 ZBAXB 66 H 95l l l l 33 12 .73 161 PCT 16 P4 AV1 -.18 WAR TEC TEH .610 ZBAXB 56 H 138l l 33 12 .67 34 PCT 15 P4 AV2 -.23 WAR TEC TEH .610 ZBAXB 56 H 138l l l l 29 14 .25 130 PCT 7 P4 AV3 .16 WAR TEC TEH .610 ZBAXB 66 H 44l l l l 33 14 .87 124 PCT 20 P4 AV2 -.26 WAR TEC TEH .610 ZBAXB 54 H 159l l 33 14 .51 132 PCT 14 P4 AV3 .18 WAR TEC TEH .610 ZBAXB 54 H 159l l l l 30 15 .55 106 PCT 14 P4 AV4 -.10 WAR TEC TEH .610 ZBAXB 66 H 88l l l l 31 15 .31 166 PCT 9 P4 AV2 -.14 WAR TEC TEH .610 ZBAXB 66 H 90l l l l 38 17 .24 22 PCT 7 P4 AV1 -.02 WAR TEC TEH .610 ZBAXB 56 H 127l l 38 17 1.07 121 PCT 21 P4 AV2 -.26 WAR TEC TEH .610 ZBAXB 56 H 127l l 38 17 .40 152 PCT 10 P4 AV4 .02 WAR TEC TEH .610 ZBAXB 56 H 127l l l l 39 17 .25 137 PCT 7 P4 AV1 .07 WAR TEC TEH .610 ZBAXB 56 H 129l l l l 38 18 .37 24 PCT 10 P4 AV2 -.19 WAR TEC TEH .610 ZBAXB 56 H 128l l 38 18 .34 15 PCT 9 P4 AV3 .07 WAR TEC TEH .610 ZBAXB 56 H 128l l l l 39 18 .18 148 PCT 6 P4 AV1 -.14 WAR TEC TEH .610 ZBAXB 54 H 146l l 39 18 .44 146 PCT 13 P4 AV2 -.14 WAR TEC TEH .610 ZBAXB 54 H 146l l l l 40 20 .79 70 PCT 19 P4 AV2 -.24 WAR TEC TEH .610 ZBAXB 54 H 147l l l l 41 20 .35 167 PCT 10 P4 AV1 .05 WAR TEC TEH .610 ZBAXB 54 H 149l l 41 20 .30 145 PCT 9 P4 AV2 -.19 WAR TEC TEH .610 ZBAXB 54 H 149l l 41 20 .26 171 PCT 8 P4 AV3 -.19 WAR TEC TEH .610 ZBAXB 54 H 149l l l l 35 21 .23 49 PCT 7 P4 AV3 .02 WAR TEC TEH .610 ZBAXB 56 H 117l l 35 21 .22 62 PCT 6 P4 AV4 .02 WAR TEC TEH .610 ZBAXB 56 H 117l l l l 42 21 .35 156 PCT 11 P4 AV2 -.17 WAR TEC TEH .610 ZBAXB 54 H 151l l l

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

1 ST Max

SG - 2C Attachment 1 - Service Induced Indications Catawba Nuclear Station 2 2EOC24 DDP 20210401 05/18/2021 13:46:39

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l 40 22 .48 75 PCT 13 P4 AV2 -.12 WAR TEC TEH .610 ZBAXB 54 H 93l l l l 43 22 .47 167 PCT 12 P4 AV1 -.02 WAR TEC TEH .610 ZBAXB 56 H 90l l l l 38 23 .43 145 PCT 11 P4 AV2 -.22 WAR TEC TEH .610 ZBAXB 56 H 101l l 38 23 .40 127 PCT 10 P4 AV4 .05 WAR TEC TEH .610 ZBAXB 56 H 101l l l l 44 23 .34 167 PCT 9 P4 AV3 -.07 WAR TEC TEH .610 ZBAXB 56 H 91l l 44 23 .35 162 PCT 9 P4 AV4 .02 WAR TEC TEH .610 ZBAXB 56 H 91l l l l 13 24 .61 78 PCT 16 90 14C .44 17902.1 NA .34 .52 TEC TEH .610 ZYAXP 59 H 64l l l l 13 25 .88 94 PCT 19 207 14C .40 17902.1 16 .23 .29 TEC TEH .610 ZYAXP 59 H 56l l l l 36 25 .38 155 PCT 11 P4 AV2 -.09 WAR TEC TEH .610 ZBAXB 54 H 110l l l l 2 26 .78 64 PCT 10 P3 11C -.07 WAR 09C TEC .610 ZBAXB 16 C 58l l l l 31 27 .40 168 PCT 10 P4 AV1 -.05 WAR TEC TEH .610 ZBAXB 62 H 108l l l l 39 27 .29 121 PCT 8 P4 AV2 .07 WAR TEC TEH .610 ZBAXB 56 H 58l l 39 27 .58 118 PCT 14 P4 AV3 .00 WAR TEC TEH .610 ZBAXB 56 H 58l l l l 40 27 .43 106 PCT 11 P4 AV2 .09 WAR TEC TEH .610 ZBAXB 56 H 60l l l l 16 32 .64 15 PCT 16 207 04H 27.45 17902.3 NA .30 .37 TEC TEH .610 ZYAXP 59 H 42l l l l 36 33 .44 165 PCT 13 P4 AV2 -.07 WAR TEC TEH .610 ZBAXB 54 H 27l l l l 38 34 .59 69 PCT 14 P4 AV2 -.05 WAR TEC TEH .610 ZBAXB 56 H 28l l l l 43 35 .43 92 PCT 18 110 09C -.64 17902.3 19 .25 .44 TEC TEH .610 ZYAXP 55 H 16l l l l 36 37 .20 79 PCT 6 P4 AV2 .07 WAR TEC TEH .610 ZBAXB 52 H 102l l l l 25 40 .88 98 PCT 26 134 02H -.69 17902.3 .23 .29 TEC TEH .610 ZYAXP 67 H 96l l l l 40 47 .27 15 PCT 8 P4 AV2 -.14 WAR TEC TEH .610 ZBAXB 52 H 27l l l l 47 48 .92 142 PCT 11 P3 13C -.37 WAR TEC TEH .610 ZBAXB 52 H 46l l l l 49 60 4.83 110 PCT 34 P3 13C -.03 WAR TEC TEH .610 ZBAXB 20 H 65l l l l 40 62 .44 57 PCT 11 P4 AV2 .48 WAR TEC TEH .610 ZBAXB 18 H 46l l l l 3 78 .50 244 PCT 7 P3 13C .63 WAR 09C TEC .610 ZBAXB 10 C 23l l l l 49 79 .35 171 PCT 9 P4 AV1 -.07 WAR TEC TEH .610 ZBAXB 14 H 46l l l

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

2 ST Max

SG - 2C Attachment 1 - Service Induced Indications Catawba Nuclear Station 2 2EOC24 DDP 20210401 05/18/2021 13:46:39

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l 33 80 .57 105 PCT 21 14 09C -.85 17902.3 19 .23 .37 TEC TEH .610 ZYAXP 13 H 9l l l l 44 81 2.59 116 PCT 32 P4 AV2 .19 WAR TEC TEH .610 ZBAXB 16 H 33l l 44 81 1.20 106 PCT 22 P4 AV3 -.16 WAR TEC TEH .610 ZBAXB 16 H 33l l 44 81 .29 152 PCT 8 P4 AV4 .05 WAR TEC TEH .610 ZBAXB 16 H 33l l l l 49 82 .30 125 PCT 9 P4 AV4 .04 WAR TEC TEH .610 ZBAXB 10 H 7l l l l 48 84 .36 109 PCT 10 P4 AV1 -.02 WAR TEC TEH .610 ZBAXB 10 H 25l l l l 46 88 .25 123 PCT 7 P4 AV2 -.10 WAR TEC TEH .610 ZBAXB 12 H 19l l l l 47 88 .35 129 PCT 10 P4 AV2 -.05 WAR TEC TEH .610 ZBAXB 10 H 27l l l l 42 91 .40 47 PCT 13 207 18C .42 17902.1 13 .20 .37 TEC TEH .610 ZYAXP 7 H 20l l l l 44 92 .40 152 PCT 11 P4 AV3 .11 WAR TEC TEH .610 ZBAXB 8 H 25l l 44 92 .35 129 PCT 9 P4 AV4 .02 WAR TEC TEH .610 ZBAXB 8 H 25l l l l 43 93 .31 64 PCT 9 P4 AV2 -.12 WAR TEC TEH .610 ZBAXB 10 H 21l l 43 93 .38 165 PCT 10 P4 AV3 -.02 WAR TEC TEH .610 ZBAXB 10 H 21l l 43 93 .32 113 PCT 9 P4 AV4 .00 WAR TEC TEH .610 ZBAXB 10 H 21l l l l 38 94 .33 24 PCT 9 P4 AV3 .14 WAR TEC TEH .610 ZBAXB 2 H 31l l l l 39 94 .63 139 PCT 15 P4 AV3 .19 WAR TEC TEH .610 ZBAXB 2 H 33l l l l 38 97 .84 73 PCT 18 P4 AV2 -.23 WAR TEC TEH .610 ZBAXB 2 H 26l l 38 97 .25 167 PCT 7 P4 AV4 -.07 WAR TEC TEH .610 ZBAXB 2 H 26l l l l 39 97 .37 63 PCT 10 P4 AV2 .04 WAR TEC TEH .610 ZBAXB 4 H 43l l 39 97 .31 159 PCT 9 P4 AV3 .13 WAR TEC TEH .610 ZBAXB 4 H 43l l 39 97 .56 123 PCT 14 P4 AV4 -.02 WAR TEC TEH .610 ZBAXB 4 H 43l l l l 38 99 .71 148 PCT 16 P4 AV3 .18 WAR TEC TEH .610 ZBAXB 4 H 33l l 38 99 2.06 121 PCT 29 P4 AV4 -.21 WAR TEC TEH .610 ZBAXB 4 H 33l l l l 33 100 .36 148 PCT 10 P4 AV2 .00 WAR TEC TEH .610 ZBAXB 2 H 14l l l l 33 101 .19 98 PCT 6 P4 AV2 -.18 WAR TEC TEH .610 ZBAXB 4 H 22l l 33 101 .19 159 PCT 6 P4 AV3 .07 WAR TEC TEH .610 ZBAXB 4 H 22l l 33 101 .30 41 PCT 9 P4 AV4 .14 WAR TEC TEH .610 ZBAXB 4 H 22l l l l 33 102 .36 92 PCT 10 P4 AV2 .06 WAR TEC TEH .610 ZBAXB 4 H 25l l l l 28 105 .67 75 PCT 16 P4 AV3 .12 WAR TEC TEH .610 ZBAXB 18 H 151l

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

Tubes: 60 Records: 85 3 ST Max

SG - 2D Attachment 1 - Service Induced Indications Catawba Nuclear Station 2 2EOC24 DDP 20210401 05/18/2021 13:46:39

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l 26 8 .25 54 PCT 6 P4 AV3 -.19 WAR TEC TEH .610 ZBAXB 52 H 39l l l l 28 10 .39 146 PCT 10 P4 AV3 -.28 WAR TEC TEH .610 ZBAXB 50 H 47l l 28 10 .32 51 PCT 8 P4 AV4 .14 WAR TEC TEH .610 ZBAXB 50 H 47l l l l 32 12 .36 160 PCT 8 P4 AV2 -.19 WAR TEC TEH .610 ZBAXB 4 H 7l l l l 33 13 1.22 124 PCT 21 P4 AV2 -.19 WAR TEC TEH .610 ZBAXB 4 H 11l l 33 13 .62 139 PCT 13 P4 AV3 .22 WAR TEC TEH .610 ZBAXB 4 H 11l l 33 13 .29 53 PCT 7 P4 AV4 .07 WAR TEC TEH .610 ZBAXB 4 H 11l l l l 35 14 2.52 105 PCT 31 P4 AV2 -.23 WAR TEC TEH .610 ZBAXB 4 H 14l l 35 14 .34 95 PCT 8 P4 AV4 .17 WAR TEC TEH .610 ZBAXB 4 H 14l l l l 33 15 .36 113 PCT 9 P4 AV4 .10 WAR TEC TEH .610 ZBAXB 2 H 11l l l l 36 16 .43 60 PCT 9 P4 AV1 .05 WAR TEC TEH .610 ZBAXB 4 H 17l l 36 16 2.60 119 PCT 32 P4 AV2 -.28 WAR TEC TEH .610 ZBAXB 4 H 17l l 36 16 .63 125 PCT 13 P4 AV3 .22 WAR TEC TEH .610 ZBAXB 4 H 17l l 36 16 .24 21 PCT 6 P4 AV4 .02 WAR TEC TEH .610 ZBAXB 4 H 17l l l l 37 17 .66 127 PCT 13 P4 AV2 -.02 WAR TEC TEH .610 ZBAXB 4 H 90l l 37 17 .51 121 PCT 11 P4 AV4 -.02 WAR TEC TEH .610 ZBAXB 4 H 90l l l l 38 18 1.02 103 PCT 18 P4 AV2 -.21 WAR TEC TEH .610 ZBAXB 4 H 92l l 38 18 .78 69 PCT 15 P4 AV4 .07 WAR TEC TEH .610 ZBAXB 4 H 92l l l l 38 19 .28 120 PCT 6 P4 AV2 -.16 WAR TEC TEH .610 ZBAXB 4 H 93l l l l 38 20 .64 116 PCT 14 P4 AV2 -.07 WAR TEC TEH .610 ZBAXB 2 H 78l l 38 20 .27 27 PCT 7 P4 AV4 .07 WAR TEC TEH .610 ZBAXB 2 H 78l l l l 41 20 .36 161 PCT 8 P4 AV4 .02 WAR TEC TEH .610 ZBAXB 4 H 98l l l l 38 21 .38 31 PCT 9 P4 AV2 .00 WAR TEC TEH .610 ZBAXB 2 H 79l l l l 43 22 .24 129 PCT 6 P4 AV1 -.05 WAR TEC TEH .610 ZBAXB 4 H 100l l 43 22 .48 85 PCT 10 P4 AV2 -.09 WAR TEC TEH .610 ZBAXB 4 H 100l l 43 22 1.43 118 PCT 23 P4 AV3 .26 WAR TEC TEH .610 ZBAXB 4 H 100l l 43 22 .81 102 PCT 16 P4 AV4 .22 WAR TEC TEH .610 ZBAXB 4 H 100l l l l 42 23 1.02 122 PCT 18 P4 AV2 -.21 WAR TEC TEH .610 ZBAXB 4 H 99l l 42 23 .34 86 PCT 8 P4 AV4 .15 WAR TEC TEH .610 ZBAXB 4 H 99l l l l 44 24 .42 94 PCT 9 P4 AV3 .09 WAR TEC TEH .610 ZBAXB 4 H 102l l l l 38 26 .42 74 PCT 10 P4 AV2 -.02 WAR TEC TEH .610 ZBAXB 2 H 108l l l l 33 28 .26 110 PCT 6 P4 AV2 -.05 WAR TEC TEH .610 ZBAXB 4 H 58l

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

1 ST Max

SG - 2D Attachment 1 - Service Induced Indications Catawba Nuclear Station 2 2EOC24 DDP 20210401 05/18/2021 13:46:39

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l l l 25 29 .40 70 PCT 13 207 09C -.78 17902.1 NA .39 .29 TEC TEH .610 ZYAXP 53 H 53l l l l 43 29 .26 96 PCT 6 P4 AV2 .07 WAR TEC TEH .610 ZBAXB 4 H 133l l l l 42 30 .70 133 PCT 15 P4 AV2 -.02 WAR TEC TEH .610 ZBAXB 2 H 119l l l l 42 32 .51 117 PCT 11 P4 AV2 -.09 WAR TEC TEH .610 ZBAXB 4 H 131l l l l 44 34 .27 135 PCT 6 P4 AV2 .02 WAR TEC TEH .610 ZBAXB 8 H 10l l l l 49 37 .26 143 PCT 6 P4 AV1 -.05 WAR TEC TEH .610 ZBAXB 4 H 149l l l l 29 40 1.35 112 PCT 23 42 05H .98 17902.1 .39 .44 TEC TEH .610 ZYAXP 41 H 138l l l l 44 46 .99 92 PCT 18 P4 AV3 .00 WAR TEC TEH .610 ZBAXB 8 H 90l l l l 24 48 1.00 83 PCT 20 130 07H -.54 17902.1 .23 .22 TEC TEH .610 ZYAXP 41 H 159l l l l 46 56 .24 25 PCT 6 P4 AV4 .29 WAR TEC TEH .610 ZBAXB 12 H 17l l l l 47 56 .69 279 PCT 9 P3 13C -.12 WAR TEC TEH .610 ZBAXB 10 H 54l l l l 44 61 .59 280 PCT 15 207 18C .60 17902.1 NA .23 .38 TEC TEH .610 ZYAXP 13 H 19l l l l 45 61 1.08 272 PCT 21 207 18C .53 17902.1 NA .28 .44 TEC TEH .610 ZYAXP 9 H 57l l l l 48 61 4.11 102 PCT 31 P3 13C .00 WAR TEC TEH .610 ZBAXB 10 H 71l l l l 38 64 .95 95 PCT 18 P4 AV2 -.23 WAR TEC TEH .610 ZBAXB 14 H 60l l l l 45 65 .20 23 PCT 5 P4 AV2 .00 WAR TEC TEH .610 ZBAXB 12 H 48l l l l 49 66 .47 150 PCT 10 P4 AV4 .05 WAR TEC TEH .610 ZBAXB 14 H 90l l l l 32 69 .72 274 PCT 9 P3 09C -.69 WAR TEC TEH .610 ZBAXB 16 H 44l l l l 21 70 .54 96 PCT 15 18 06H 1.52 17902.1 .27 .22 TEC TEH .610 ZYAXP 29 H 140l l l l 12 72 .81 252 PCT 25 2 01H .42 17902.3 .23 .29 TEC TEH .610 ZYAXP 29 H 105l l l l 48 72 1.09 126 PCT 30 203 18C .65 17902.3 25 .30 .44 TEC TEH .610 ZYAXP 15 H 93l l l l 49 74 .24 31 PCT 6 P4 AV4 .02 WAR TEC TEH .610 ZBAXB 14 H 176l l l l 41 77 .74 74 PCT 15 P4 AV2 .35 WAR TEC TEH .610 ZBAXB 16 H 148l l 41 77 .48 134 PCT 11 P4 AV3 -.09 WAR TEC TEH .610 ZBAXB 16 H 148l l l l 24 78 .29 102 PCT 4 P3 10C -.61 WAR TEC TEH .610 ZBAXB 30 H 78l

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

2 ST Max

SG - 2D Attachment 1 - Service Induced Indications Catawba Nuclear Station 2 2EOC24 DDP 20210401 05/18/2021 13:46:39

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l l l 38 78 .36 80 PCT 8 P4 AV2 .07 WAR TEC TEH .610 ZBAXB 14 H 148l l 38 78 .95 66 PCT 18 P4 AV3 .02 WAR TEC TEH .610 ZBAXB 14 H 148l l l l 43 78 1.22 78 PCT 21 P4 AV2 -.22 WAR TEC TEH .610 ZBAXB 16 H 155l l 43 78 2.44 111 PCT 31 P4 AV3 .23 WAR TEC TEH .610 ZBAXB 16 H 155l l l l 22 79 .29 125 PCT 4 P3 10C -.53 WAR TEC TEH .610 ZBAXB 32 H 64l l l l 33 79 .23 20 PCT 6 P4 AV1 .12 WAR TEC TEH .610 ZBAXB 18 H 27l l 33 79 .30 97 PCT 8 P4 AV2 .28 WAR TEC TEH .610 ZBAXB 18 H 27l l l l 36 79 .32 34 PCT 8 P4 AV1 .09 WAR TEC TEH .610 ZBAXB 18 H 13l l 36 79 .61 39 PCT 14 P4 AV3 .02 WAR TEC TEH .610 ZBAXB 18 H 13l l l l 33 81 .29 43 PCT 8 P4 AV2 .23 WAR TEC TEH .610 ZBAXB 18 H 29l l l l 39 81 .38 104 PCT 8 P4 AV2 .25 WAR TEC TEH .610 ZBAXB 20 H 20l l l l 48 82 .27 124 PCT 6 P4 AV1 -.04 WAR TEC TEH .610 ZBAXB 14 H 189l l l l 49 82 .38 166 PCT 8 P4 AV1 .02 WAR TEC TEH .610 ZBAXB 14 H 192l l l l 48 83 .30 142 PCT 7 P4 AV1 .05 WAR TEC TEH .610 ZBAXB 46 H 73l l l l 49 84 .41 152 PCT 10 P4 AV1 -.13 WAR TEC TEH .610 ZBAXB 18 H 74l l l l 42 85 .84 136 PCT 17 P4 AV2 .00 WAR TEC TEH .610 ZBAXB 16 H 190l l 42 85 .32 25 PCT 8 P4 AV3 .05 WAR TEC TEH .610 ZBAXB 16 H 190l l l l 33 87 .32 137 PCT 7 P4 AV2 .00 WAR TEC TEH .610 ZBAXB 20 H 34l l l l 46 87 .32 143 PCT 7 P4 AV1 -.02 WAR TEC TEH .610 ZBAXB 20 H 65l l l l 47 87 .30 57 PCT 7 P4 AV4 .09 WAR TEC TEH .610 ZBAXB 46 H 74l l l l 18 89 .69 75 PCT 17 34 05H .76 17902.1 NA .50 .29 TEC TEH .610 ZYAXP 21 H 50l l l l 46 89 .21 123 PCT 6 P4 AV1 -.56 WAR TEC TEH .610 ZBAXB 18 H 71l l 46 89 .21 168 PCT 6 P4 AV2 .00 WAR TEC TEH .610 ZBAXB 18 H 71l l l l 38 90 .32 129 PCT 8 P4 AV2 -.17 WAR TEC TEH .610 ZBAXB 18 H 95l l l l 39 90 .48 148 PCT 10 P4 AV2 -.17 WAR TEC TEH .610 ZBAXB 20 H 50l l l l 44 90 .26 155 PCT 6 P4 AV1 -.15 WAR TEC TEH .610 ZBAXB 20 H 61l l l l 44 91 .29 119 PCT 7 P4 AV2 -.14 WAR TEC TEH .610 ZBAXB 18 H 87l l 44 91 .33 167 PCT 8 P4 AV3 .12 WAR TEC TEH .610 ZBAXB 18 H 87l

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

3 ST Max

SG - 2D Attachment 1 - Service Induced Indications Catawba Nuclear Station 2 2EOC24 DDP 20210401 05/18/2021 13:46:39

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l 44 91 .33 167 PCT 8 P4 AV4 -.14 WAR TEC TEH .610 ZBAXB 18 H 87l l l l 45 91 .31 135 PCT 8 P4 AV2 -.05 WAR TEC TEH .610 ZBAXB 18 H 134l l 45 91 .45 152 PCT 11 P4 AV4 -.07 WAR TEC TEH .610 ZBAXB 18 H 134l l l l 42 92 .12 73 PCT 3 P4 AV4 -.12 WAR TEC TEH .610 ZBAXB 20 H 73l l l l 36 93 .65 92 PCT 13 P4 AV2 .00 WAR TEC TEH .610 ZBAXB 20 H 80l l 36 93 .23 132 PCT 5 P4 AV3 .02 WAR TEC TEH .610 ZBAXB 20 H 80l l l l 38 93 1.25 126 PCT 21 P4 AV2 .00 WAR TEC TEH .610 ZBAXB 20 H 85l l 38 93 .38 124 PCT 8 P4 AV3 .12 WAR TEC TEH .610 ZBAXB 20 H 85l l l l 40 93 .14 84 PCT 4 P4 AV1 .00 WAR TEC TEH .610 ZBAXB 18 H 79l l 40 93 .56 73 PCT 13 P4 AV2 -.17 WAR TEC TEH .610 ZBAXB 18 H 79l l l l 36 94 .47 70 PCT 10 P4 AV1 -.27 WAR TEC TEH .610 ZBAXB 20 H 81l l 36 94 .55 138 PCT 11 P4 AV2 .05 WAR TEC TEH .610 ZBAXB 20 H 81l l l l 38 94 .33 154 PCT 8 P4 AV3 -.07 WAR TEC TEH .610 ZBAXB 18 H 122l l l l 40 94 .28 23 PCT 7 P4 AV1 -.47 WAR TEC TEH .610 ZBAXB 18 H 128l l 40 94 .77 152 PCT 16 P4 AV2 .14 WAR TEC TEH .610 ZBAXB 18 H 128l l 40 94 .79 155 PCT 17 P4 AV3 .00 WAR TEC TEH .610 ZBAXB 18 H 128l l l l 32 96 .36 155 PCT 9 P4 AV2 .19 WAR TEC TEH .610 ZBAXB 18 H 109l l l l 35 96 .31 74 PCT 8 P4 AV2 .02 WAR TEC TEH .610 ZBAXB 18 H 116l l l l 36 96 .73 115 PCT 16 P4 AV2 -.14 WAR TEC TEH .610 ZBAXB 18 H 118l l 36 96 .21 130 PCT 6 P4 AV3 .02 WAR TEC TEH .610 ZBAXB 18 H 118l l l l 39 96 .43 116 PCT 10 P4 AV3 .07 WAR TEC TEH .610 ZBAXB 18 H 125l l l l 40 96 .33 22 PCT 8 P4 AV1 .07 WAR TEC TEH .610 ZBAXB 18 H 129l l l l 36 97 .82 101 PCT 15 P4 AV2 -.12 WAR TEC TEH .610 ZBAXB 20 H 103l l l l 34 98 .81 104 PCT 15 P4 AV2 -.30 WAR TEC TEH .610 ZBAXB 20 H 100l l l l 36 98 .63 123 PCT 14 P4 AV3 .22 WAR TEC TEH .610 ZBAXB 18 H 119l l l l 39 98 .43 139 PCT 10 P4 AV1 -.04 WAR TEC TEH .610 ZBAXB 18 H 147l l l l 29 99 .26 52 PCT 6 P4 AV3 .09 WAR TEC TEH .610 ZBAXB 36 H 101l l l l 34 99 .64 146 PCT 14 P4 AV2 -.26 WAR TEC TEH .610 ZBAXB 18 H 135l l l l 34 100 .51 148 PCT 12 P4 AV3 .07 WAR TEC TEH .610 ZBAXB 18 H 143l

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

4 ST Max

SG - 2D Attachment 1 - Service Induced Indications Catawba Nuclear Station 2 2EOC24 DDP 20210401 05/18/2021 13:46:39

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l l l 36 100 1.63 279 PCT 25 58 AV3 -.70 17902.1 26 .32 .29 TEC TEH .610 ZYAXP 17 H 136l l 36 100 1.59 97 SVI 58 AV3 -.46 LPI TEC TEH .610 ZYAXP 17 H 136l l 36 100 4.85 84 PCT 43 18 AV3 -.29 17902.1 35 .34 .37 TEC TEH .610 ZYAXP 17 H 136l l 36 100 4.85 84 SVI 18 AV3 -.29 LPI TEC TEH .610 ZYAXP 17 H 136l l 36 100 2.25 94 PCT 29 114 AV3 .44 17902.1 11 .32 .29 TEC TEH .610 ZYAXP 17 H 136l l 36 100 2.25 94 SVI 114 AV3 .44 LPI TEC TEH .610 ZYAXP 17 H 136l l 36 100 .66 74 SVI 1 AV3 -.59 LPI 08H AV3 .560 ZRUPP 421 H 14l l 36 100 .95 74 SVI 1 AV3 .03 LPI 08H AV3 .560 ZRUPP 421 H 14l l 36 100 .44 78 SVI 1 AV3 .56 LPI 08H AV3 .560 ZRUPP 421 H 14l l l l 32 101 .26 146 PCT 7 P4 AV3 .07 WAR TEC TEH .610 ZBAXB 18 H 140l l l l 30 102 .88 129 PCT 17 P4 AV3 .00 WAR TEC TEH .610 ZBAXB 36 H 46l l l l 27 104 .28 130 PCT 7 P4 AV2 -.07 WAR TEC TEH .610 ZBAXB 34 H 49l l l l 29 104 .35 138 PCT 8 P4 AV2 -.05 WAR TEC TEH .610 ZBAXB 36 H 60l l l l 28 105 .99 141 PCT 19 P4 AV2 .12 WAR TEC TEH .610 ZBAXB 34 H 56l l 28 105 .36 138 PCT 9 P4 AV3 .28 WAR TEC TEH .610 ZBAXB 34 H 56l l l l 25 107 1.10 123 PCT 20 P4 AV2 .00 WAR TEC TEH .610 ZBAXB 36 H 39l l 25 107 .39 72 PCT 9 P4 AV3 .26 WAR TEC TEH .610 ZBAXB 36 H 39l l l l 27 107 .93 153 PCT 19 P4 AV2 .10 WAR TEC TEH .610 ZBAXB 34 H 50l l l l 2 111 .21 316 PCT 9 207 03H -.62 17902.1 NA .23 .29 09C TEH .610 ZYAXP 69 H 62l

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

l ROW COL VOLTS DEG IND PER CHN LOCN INCH1 INCH2 UTIL1 UTIL2 CRLEN CEG CRWID BEGT ENDT PDIA PTYPE CAL L IDXl

+----+----+---------+----+----+----+-----+----+---------+---------+---------+---------+-------+----+-------+----+----+------+------+------+--+-----+

Tubes: 92 Records: 133 5 ST Max

Retrieved from "https://kanterella.com/w/index.php?title=RA-21-0223,_Inservice_Inspection_(ISI)_and_Steam_Generator_Inspection_(SG-ISI)_Report&oldid=3407114"