Text

Third Supplement to Response to Second Request for Additional Information Regarding License Amendment Request to Revise Selected Permanently Defueled Technical Specifications to Support Repairing of Steam Generator Tubes by Sleeving
	ML25280A083
Person / Time
Site:	Palisades
Issue date:	10/07/2025
From:	Fleming J; Holtec Palisades
To:	; Office of Nuclear Reactor Regulation, Document Control Desk
Shared Package
ML25280A082	List: ML25280A086; ML25280A092; PNP 2025-071, Third Supplement to Response to Second Request for Additional Information Regarding License Amendment Request to Revise Selected Permanently Defueled Technical Specifications to Support Repairing of Steam Generator Tubes by Sleeving;
References
	PNP 2025-071
	Download: ML25280A083 (1)
	v • d • e

HOLTEC PALISADES PNP 2025-071 October 7, 2025 ATTN : Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 Palisades Nuclear Plant NRC Docket No. 50-255 27780 Blue Star Highway, Covert, Ml 49043 10 CFR 50.90 Renewed Facility Operating License No. DPR-20

Subject:

Third Supplement to Response to Second Request for Additional Information Regarding License Amendment Request to Revise Selected Permanently Defueled Technical Specifications to Support Repairing of Steam Generator Tubes by Sleeving By letter dated February 11, 2025 (Reference 1 ), Holtec Palisades, LLC (Holtec Palisades) requested U.S. Nuclear Regulatory Commission (NRC) review and approval of a license amendment request (LAR) to revise the Palisades Nuclear Plant (PNP) Permanently Defueled Technical Specifications (POTS) to allow use of Framatome Alloy 690 sleeves to repair defective steam generator (SG) tubes as an alternative to removing the tubes from service by plugging.

By electronic mail (email) received on April 14, 2025, the NRC forwarded a draft request for additional information (RAI) regarding the LAR. A clarification call with the NRC reviewers was held on April 29, 2025 to discuss the LAR, and the NRC provided the final RAI in an email dated May 7, 2025 (Reference 2). Holtec Palisades provided the responses to the RAI in a letter dated May 29, 2025 (Reference 3).

By email received on June 30, 2025, the NRC provided a second RAI regarding the LAR (Reference 4). Holtec Palisades provided the responses to the second RAI in a letter dated July 30, 2025 (Reference 5). On August 14, 2025, NRC staff representatives and representatives from Holtec Palisades and Framatome participated in a conference call to discuss the PNP SG tube inspections. Included in the discussion topics was an NRC request to clarify the response in to Question 19 in the second RAI regarding the SG inspection frequency.

In a letter dated August 29, 2025 (Reference 6), Holtec Palisades provided a supplement to the second RAI response (Reference 5) that revised the response to RAI Question 19 to address the NRC's request for clarification of the response. The supplement letter included two new commitments pertaining to the post-restart scope and frequency of the PNP SG inspections as agreed during the August 14, 2025 conference call.

PNP 2025-071 Page 2 of 3 By email dated September 8, 2025, the NRC requested two additional Framatome documents regarding the following subjects: Probe Performance Comparison +Point Sleeve Probe vs Standard +Point probe and Site Qualification Performance Verification ODSCC flaw detection at sleeved 05H TSP in SGA. These two documents were consolidated into Framatome document 51 -9397841 -000, Consolidated White Paper: +Point Probe Performance Evaluation - Palisades Sleeve Project, and provided to the NRC as a proprietary document in the second supplement to the second RAI response letter dated September 23, 2025 (Reference 7).

The purpose of this third supplement to the second RAI response is to submit Framatome documents 51-9382488-002, Palisades Steam Generator Condition Monitoring for 1R28, and 51-9394013-002, Palisades Steam Generator Operational Assessment for Cycle 29, (collectively referred to as the Condition Monitoring and Operational Assessment (CMOA)) for PNP SG Restart Inspection 1 D28, which was requested by the NRC in the Reference 4 RAI.

Note that the PNP outage designations 1 D28 and 1 R28 both refer to the Cycle 28 outage (i.e.,

Cycle 28 decommissioning/refueling outage). The CMOA documents are provided in the attachments to this letter.

The CMOA documents provided in this third supplement to the Reference 5 second RAI response do not alter the no significant hazards consideration contained in the Reference 1 LAR.

In accordance with 10 CFR 50.91 (b), State consultation, Holtec Palisades is notifying the State of Michigan of this third supplement to the Reference 5 second RAI response by transmitting a copy of this letter, with attachments, to the designated State of Michigan official.

If you have any questions regarding this submittal, please contact Kami Miller, Regulatory Assurance Manager, at (269) 764-2375.

This letter contains no new regulatory commitments and no revisions to existing regulatory commitments.

I declare under penalty of perjury that the foregoing is true and correct. Executed on October 7, 2025.

Respectfully, Jean A.

Fleming Digitally signed by Jean A. Fleming ON: cn=Jean A. Fleming, c=US, o=Holtec Decommissioning International, LLC, ou=Regulatory and Environmental Affairs, email=J.Fleming@Holtec.com Date: 2025.10.0710:30:11-04'00' Jean A. Fleming Vice President, Licensing and Regulatory Assurance Holtec International

References:

1.

Holtec Palisades, LLC (Holtec Palisades) letter to U.S. Nuclear Regulatory Commission (NRC), License Amendment Request to Revise Selected Permanently Oefueled Technical Specifications to Support Repairing of Steam Generator Tubes by Sleeving, dated February 11, 2025 (ADAMS Accession Nos. ML25042A692 and ML25043A348)

PNP 2025-071 Page 3 of 3 Attachments:

2.

NRC email to Holtec Palisades, Request for Additional Information RE:

Steam Generator Tube Sleeving Amendment (L-2025-LLA-0036), dated May 7, 2025 (ADAMS Accession No. ML25128A171)

3.

Holtec Palisades letter to NRC, Response to Request for Additional Information Regarding License Amendment Request to Revise Selected Permanently Defueled Technical Specifications to Support Repairing of Steam Generator Tubes by Sleeving, dated May 29, 2025 (ADAMS Accession No. ML25149A013)

4.

NRC email to Holtec Palisades, Request for Additional Information RE:

Steam Generator Repair by Sleeving Amendment (L-2025-LLA-0036), dated June 30, 2025 (ADAMS Accession No. ML25182A275)

5.

Holtec Palisades letter to NRC, Response to Second Request for Additional Information Regarding License Amendment Request to Revise Selected Permanently Defueled Technical Specifications to Support Repairing of Steam Generator Tubes by Sleeving, dated July 30, 2025 (ADAMS Accession No. ML25211A324)

6.

Holtec Palisades letter to NRC, Supplement to Response to Second Request for Additional Information Regarding License Amendment Request to Revise Selected Permanently Defueled Technical Specifications to Support Repairing of Steam Generator Tubes by Sleeving, dated August 29, 2025 (ADAMS Accession No. ML25241A042)

7.

Holtec Palisades letter to NRC, Second Supplement to Response to Second Request for Additional Information Regarding License Amendment Request to Revise Selected Permanently Defueled Technical Specifications to Support Repairing of Steam Generator Tubes by Sleeving, dated September 23, 2025 (ADAMS Accession Nos. ML25266A097 and ML25266A098)

1.

Framatome Document 51-9382488-002, Palisades Steam Generator Condition Monitoring for 1 R28

2.

Framatome Document 51-9394013-002, Palisades Steam Generator Operational Assessment for Cycle 29 cc:

NRC Region Ill Regional Administrator NRC Senior Resident Inspector-Palisades Nuclear Plant NRC Project Manager - Palisades Nuclear Plant Designated Michigan State Official

PNP 2025-071 Third Supplement to Response to Second Request for Additional Information Framatome Document 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 R28 (144 Pages Follow)

framatome 20004-028 (03/26/2024)

Framatome Inc.

Engineering Information Record Document No.:

51 9382488 -

002 Palisades Steam Generator Condition Monitoring for 1 D28 Page 1 of 144

framatome 20004-028 (03/26/2024)

Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 Safety Related?

~YES No Does this document establish design or technical requirements?

Does this document contain assumptions requiring verification?

Does this document contain Customer Required Format?

Signature Block Name and Title Signature and Date Role Craig Kelley CJ KELLEY LP Supervisory Engineer 10/5/2025 Chirs Guynn CL GUYNN LR Engineer IV 10/6/2025 Wayne Belden WDBELDEN A

Performance Engineering Manager 10/6/2025 Scott Rector TSRECTOR PM Project Manager 10/6/2025 Role Definitions:

P/R/A designates Preparer (P), Reviewer (R), Approver (A);

LP/LR designates Lead Preparer (LP), Lead Reviewer (LR);

M designates Mentor (M);

PM designates Project Manager (PM)

YES ~NO YES ~NO YES ~NO Scope/Comments All All All All Page 2

framatome 20004-028 (03/26/2024)

Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 Record of Revision Revision Pages/Sections/

No.

Paragraphs Changed Brief Description / Change Authorization 000 All Initial Revision.

001 All The purpose of Revision 001 is to incorporate customer comments.

See revision bars in left hand margin for specific changes made.

002 All The purpose of Revision 002 is administrative only to:

1.

Remove the Export Control Information on page 1.

2.

Clarify the outage designation as 1D28 in the title and on the column headings in Table 8-11.

3.

Update the revision level of Reference 9.g to the latest version.

Page 3

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 Table of Contents Page SIGNATURE BLOCK............................................................................................................................. 2 RECORD OF REVISION....................................................................................................................... 3 LIST OF TABLES.................................................................................................................................. 6 LIST OF FIGURES................................................................................................................................ 7 1.0 EXECUTIVE

SUMMARY

............................................................................................................ 9 2.0 PURPOSE................................................................................................................................. 9 3.0 SCOPE...................................................................................................................................... 9 4.0 ASSUMPTIONS......................................................................................................................... 9

5.0 BACKGROUND

......................................................................................................................... 9 6.0 PERFORMANCE CRITERIA.................................................................................................... 11 7.0 INSPECTION SCOPE.............................................................................................................. 12 7.1 Tubes in service at 1 D28.................................................................................................. 12 7.2 Tubes De-plugged for inspection at 1D28.......................................................................... 13 7.3 Tubes that were sleeved at 1D28....................................................................................... 13 7.4 Scope Expansions........................................................................................................... 13 7.5 Primary Side Visual Inspections (Both SGs)................................................................. 14 7.6 Secondary Side Scope (Both SGs)............................................................................... 14 8.0 INSPECTION RES UL TS.......................................................................................................... 16 8.1 Tube Degradation Identified.......................................................................................... 16 8.1.1 Tube Plugging and Stabilization..................................................................... 16 8.1.2 ECT Results................................................................................................... 16 8.1.3 1 D28R De-plug Inspection and Return to Service.......................................... 17 8.2 Primary Channel Head Visual Examination Results...................................................... 24 8.3 Tube Slippage Monitoring............................................................................................. 25 8.4 Secondary Side Examinations...................................................................................... 25 8.4.1 Results of Foreign Object and PLP Inspections.............................................. 25 8.4.2 Steam Drum Inspections................................................................................ 25 8.4.3 Deposit Mapping............................................................................................ 26 8.5 1 D28 Tube Repair Required......................................................................................... 28 9.0 CONDITION MONITORING..................................................................................................... 38 9.1 Input Parameters.......................................................................................................... 38 9.2 Evaluation of Structural Integrity................................................................................... 39 9.2.1 Tube Support Wear........................................................................................ 39 9.2.2 Foreign Object Wear...................................................................................... 40 9.2.3 Axial ODSCC................................................................................................. 40 Page 4

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 Table of Contents (continued)

Page 9.2.4 Circumferential ODSCC................................................................................. 41 9.2.5 Axial PWSCC................................................................................................. 41 9.2.6 Circumferential PWSCC................................................................................. 42 9.3 Evaluation of Accident Induced Leakage Integrity......................................................... 42 9.3.1 Wear.............................................................................................................. 42 9.3.2 ODSCC.......................................................................................................... 42 9.3.3 PWSCC.......................................................................................................... 43 9.3.4 Circumferential PWSCC TS leakage evaluation............................................. 45 9.4 1028 In Situ Pressure Testing...................................................................................... 85 9.4.1 SGA In Situ Pressure Testing......................................................................... 85 9.4.2 SGB In Situ Pressure Testing......................................................................... 85 10.0 NOISE MONITORING.............................................................................................................. 88 11.0 COMPUTER FILES.................................................................................................................. 95

12.0 REFERENCES

......................................................................................................................... 96 APPENDIX A :

SGA 1028 ODSCC AND PWSCC INDICATIONS.................................................. A-1 APPENDIX B:

SGB 1028 ODSCC AND PWSCC INDICATIONS.................................................. 8-1 Page 5

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 List of Tables Page Table 7-1 : 1028 Eddy Current Inspection Scope Summary................................................................ 15 Table 8-1: 1028 Indication Totals by Degradation Mechanism........................................................... 18 Table 8-2: 1028 Diagonal Bar Wear................................................................................................... 19 Table 8-3: 1028 Vertical Strap Wear.................................................................................................. 19 Table 8-4: 1028 Eggcrate Wear......................................................................................................... 19 Table 8-5: 1028 Wear Indication Repair............................................................................................. 19 Table 8-6: 1028 Foreign Object Wear Indications (VOL/SVl)(Sorted by % TW)................................... 20 Table 8-7: 1028 Ghent Exams............................................................................................................ 22 Table 8-8: Framatome Steam Drum Condition Reports...................................................................... 26 Table 8-9: 1028 SGA FOSAR Summary............................................................................................ 29 Table 8-10: 1D28 SGB FOSAR Summary.......................................................................................... 34 Table 8-11 : 1 D28 Foreign Object Wear Summary.............................................................................. 37 Table 9-1: Palisades Unit 1 Steam Generator Input Values................................................................ 39 Table 9-2: EPRI TR-107197 P1 Figure 5-63 Regression Parameters................................................. 41 Table 9-3: SGA Circumferential ODSS at TTS In Situ Screening Results........................................... 43 Table 9-4: SGA Circumferential PWSCC at TTS In Situ Screening Results........................................ 44 Table 9-5: Leakage Evaluation of Circumferential Indications in the Tubesheet.................................. 45 Table 11-1 : Computer Files................................................................................................................. 95 Table A-1: SGA Axial ODSCC Indications@ TTS.............................................................................. A-1 Table A-2: SGA Axial OOSCC Indications@ TSP............................................................................. A-2 Table A-3: SGA Circ OOSCC Indications @TTS............................................................................... A-27 Table A-4: SGA Axial PWSCC Indications@ TTS............................................................................ A-29 Table A-5: SGA Axial PWSCC Indications@ TSP............................................................................ A-31 Table A-6: SGA Circ PWSCC Indications @TTS............................................................................. A-31 Table B-1: SGB Axial ODSCC Indications@ TTS.............................................................................. B-1 Table B-2: SGB Axial ODSCC Indications @ TSP.............................................................................. B-2 Table B-3: SGB Circ OOSCC Indications @TTS............................................................................... B-11 Table B-4: SGB Axial PWSCC Indications@ TTS............................................................................ B-12 Table B-5: SGB Circ PWSCC lndications@TTS.............................................................................. B-12 Page 6

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 List of Figures Page Figure 5-1: Palisades CE Model 2530 Steam Generators................................................................... 11 Figure 8-1: 1 D28 Bobbin % TW Wear Distributions............................................................................. 21 Figure 8-2: 1 D28 Tube Support Wear Growth Rate Distributions........................................................ 22 Figure 8-3: FOTS 496 SGA Bowl FME............................................................................................... 25 Figure 8-4: Palisades SG A Tube OD Deposit Loading 20.0 mils and thicker..................................... 27 Figure 8-5: Palisades SG B Tube OD Deposit Loading 20.0 mils and thicker..................................... 28 Figure 9-1: SGA Support Wear........................................................................................................... 46 Figure 9-2: SGB Support Wear........................................................................................................... 4 7 Figure 9-3: SGA/SGB Axial Foreign Object Wear Voltage Screening................................................. 48 Figure 9-4: CM for Foreign Object Wear (ETSS H-21998.1) Both SGs............................................... 49 Figure 9-5: CM for Foreign Object Wear (ETSS H-27901.1) Both SGs............................................... 50 Figure 9-6: SGA-CM for Axial ODSCC at Top of Tubesheet Locations (Before LxL Sizing)............. 51 Figure 9-7: SGA-CM for Axial ODSCC at Top of Tubesheet Locations (After LxL Sizing)................ 52 Figure 9-8: SGB - CM for Axial ODSCC at Top of Tubesheet Locations (Before LxL Sizing)............. 53 Figure 9-9: SGB - CM for Axial ODSCC at Top of Tubesheet Locations (After LxL Sizing)................ 54 Figure 9-10: SGA-CM for Axial ODSCC at TSP Locations (Before LxL Sizing)................................ 55 Figure 9-11: SGA-CM for Axial ODSCC at TSP Locations (After LxL Sizing)................................... 56 Figure 9-12: SGB-CM for Axial ODSCC at TSP Locations (Before LxL Sizing)................................ 57 Figure 9-13: SGB - CM for Axial ODSCC at TSP Locations (After LxL Sizing)................................... 58 Figure 9-14: SGA Axial ODSCC TTS Voltage Screening.................................................................... 59 Figure 9-15: SGB Axial ODS CC TTS Voltage Screening.................................................................... 60 Figure 9-16: SGA Axial ODSCC TSP Voltage Screening.................................................................... 61 Figure 9-17: SGB Axial ODSCC TSP Voltage Screening.................................................................... 62 Figure 9-18: SGB 73-94 01 H ODSCC ISPTGL Figure 4-2 Screening................................................. 63 Figure 9-19: SGA CM for Circ ODSCC TTS (After LxL)...................................................................... 64 Figure 9-20: SGB CM for Circ ODS CC TTS (After LxL)...................................................................... 65 Figure 9-21: SGA Circumferential ODSCC TTSH Voltage Screening................................................. 66 Figure 9-22: SGA 103-66 TSH ISPTGL Figure 4-2 Screening............................................................ 67 Figure 9-23: SGA 103-70 TSH ISPTGL Figure 4-2 Screening............................................................ 68 Figure 9-24: SGB Circumferential ODS CC TSP Voltage Screening.................................................... 69 Page 7

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 Figure 9-25: SGA-CM for Axial PWSCC TTS...................................................................................... 70 Figure 9-26: SGB-CM for Axial PWSCC TTS...................................................................................... 71 Figure 9-27: SGA Axial PWSCC TTS Voltage Screening.................................................................... 72 Figure 9-28: SGA 107-80 TSH PWSCC ISPTGL Figure 4-2 Screening.............................................. 73 Figure 9-29: SGA 107-66 TSH PWSCC ISPTGL Figure 4-2 Screening.............................................. 74 Figure 9-30: SGB Axial PWSCC TTS Voltage Screening.................................................................... 75 Figure 9-31: SGB 42-103 TSH PWSCC ISPTGL Figure 4-2 Screening.............................................. 76 Figure 9-32: SGA-CM for Circumferential PWSCC TTS...................................................................... 77 Figure 9-33: SGB-CM for Circumferential PWSCC TTS...................................................................... 78 Figure 9-34: SGA Circumferential PWSCC TTS Voltage Screening.................................................... 79 Figure 9-35: SGA 24-139 TSH -8.04 Circ PWSCC TTS ISPTGL Figure 4-2 Screening...................... 80 Figure 9-36: SGA 48-61 TSH -7.84 Circ PWSCC TTS ISPTGL Figure 4-2 Screening........................ 81 Figure 9-37: SGB Circumferential PWSCC TTS Voltage Screening.................................................... 82 Figure 9-38: SGA-CM for Axial PWSCC at VS Dent........................................................................... 83 Figure 9-39: SGA Axial PWSCC at VS Dent Voltage Screening......................................................... 84 Figure 9-40: SGA In Situ Testing List p.1/2......................................................................................... 86 Figure 9-41: SGA In Situ Testing List p.2/2......................................................................................... 86 Figure 9-42: SGB In Situ Testing List.................................................................................................. 87 Figure 10-1 : Eggcrate Bobbin Noise Comparison - 2014 through 2024 (Both SGs)........................... 89 Figure 10-2: Free Span Bobbin Noise Comparison - 2014 through 2024 (Both SGs)......................... 90 Figure 10-3: Vertical Strap Bobbin Noise Comparison - 2014 through 2024 (Both SGs).................... 91 Figure 10-4: TTS +Point' Noise Comparison -2014 through 2024 (Both SGs)................................ 92 Figure 10-5: Dent +Point' Noise Comparison - 2010 through 2024 (both SGs)................................ 93 Figure 10-6: U-bend +Point' Noise Comparison - 2010 through 2020 (Both SGs)........................... 94 Figure 10-7: ETSS 111524 to 2024 TTS Noise Comparison (Both SGs)............................................. 95 Page 8

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 1.0 EXECUTIVE

SUMMARY

During the 1D28 outage all in-service tubes in SGA and SGB were inspected with ECT. In addition, visual inspections were performed on the primary side bowl, installed plugs, the tubesheet and steam drums in both generators. All tubes satisfied performance criteria for Condition monitoring either analytically or through In Situ pressure testing. 17 tubes in SGA and 8 tubes in SGB were In Situ pressure tested with no tube failures or leakage recorded. 712 tubes in SGA and 261 tubes in SGB had indications that required either plugging or sleeve repairs to return-to-service these tubes. As part of the repair efforts a population of tubes were de-plugged for inspection for potential return to service. These tubes were not reviewed against condition monitoring limits as they were not in service at 1D28. Further details of final repairs are contained in the separate Operational Assessment Document

[9.g] and the de-plugging analysis document [10.k]. Primary side visuals performed identified no concerns. The results of the secondary side inspections were the removal of 16 objects from the SG tubesheet, and some minor issues found in the Steam Drum which were addressed with repairs as needed and documented in Section 8.3.2.

2.0 PURPOSE This report documents that Palisades steam generator performance criteria relating to tube integrity were met for operating cycle 28, for a total length of 1.57 effective full power years (EFPY). The performance criteria are based on NEI 97-06 [1] and summarized in Section 5.0.

In accordance with the EPRI Steam Generator Integrity Assessment Guidelines [2.a], a condition monitoring (CM) assessment must be performed at the conclusion of each steam generator eddy current examination. This process is described as "backward-looking," since its purpose is to confirm that adequate steam generator (SG) integrity was maintained during the most recent operating period. It involves an evaluation of the as-found conditions of the steam generator relative to established performance criteria for structural and leakage integrity. During the 1D28 outage, Framatome performed the CM assessment through primary side eddy current testing (ECT) inspections, primary side visual inspections, and secondary side visual inspections, which are described in the degradation assessment [8.g].

Inspection results are documented in the Framatome data management system (FDMS),

Framatome foreign object tracking system (POTS) and other examination records.

In addition to the CM assessment, an operational assessment (OA) must also be performed to ensure that steam generator tubing will meet the technical specification performance criteria throughout the upcoming operating cycle. In this case, the OA is a separate document. The OA document addresses projecting and evaluating steam generator tube degradation mechanisms that were identified during the 1D28 outage as well as those identified during prior inspections but not during 1D28.

3.0 SCOPE This evaluation pertains to the Palisades Unit 1 replacement steam generators (CE Model 2530), which are reactor coolant system components. In accordance with [2.a], the CM assessment documented in this report is required to be completed prior to plant entry into Mode 4 during start up following the SG inspection.

4.0 ASSUMPTIONS This evaluation contains no assumptions requiring verification.

5.0 BACKGROUND

Palisades Unit 1 is a 2-loop (4 primary coolant pumps, 2 SGs) Combustion Engineering (CE) PWR. The original SGs were replaced with CE Model 2530 SGs in 1991 due to accelerated tube degradation. The current SGs each contain 8219 mill annealed Inconel Alloy 600 tubes with a nominal outer diameter (OD) of 0. 75 inches and nominal wall thickness of 0.042 inches. The tubes are arranged in a I-inch triangular-pitch pattern comprised of 138 rows and 165 columns and were explosively expanded throughout the full tubesheet depth. Tube supports include Page 9

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 horizontal eggcrate supports in the straight section of the tubes, and diagonal bars and vertical strap supports in the upper portion of the tube bundle. All support structures are stainless steel. The general tube support layout is illustrated in Figure 5-1.

In 2022, Palisades was shut down by the owner, Entergy, with the intention of decommissioning. The plant was taken over by Holtec Incorporated with the intention of restarting. Consequently, the plant has been shut down for an extended period. This inspection is being referred to as "1D28", where "D" indicates "defueled". 1D28 work was performed in the fall of 2024, and consisted entirely of inspections, after which equipment and personnel were demobilized. Work resumed in the spring of 2025, focused mainly on tube re-activation (plug removal) and tube repairs (plugging and sleeving). To recover heat transfer area from plugged tubes, certain previously-plugged tubes were de-plugged, and, in most cases, returned to service. This is discussed in more detail below. Work in 2025 was referred to as "1D28R", with R indicating "repairs". Additionally, in-situ pressure testing was performed during 1D28R.

Page 10

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 Figure 5-1: Palisades CE Model 2530 Steam Generators DBH DBC 06H 08C 28.50

O7H 07C 06H 06C 28.50" 05H 05C 39.75

04H 04C 38.75" O3H 03C 39.75" O2H 02C 38.75" O1 H 01C 28.00" TSH TSC 20.75" TEC TEH 6.0 PERFORMANCE CRITERIA The steam generator tubes constitute a substantial portion of the reactor coolant pressure boundary, and as such, they are an important barrier to the release of radioactive material to the environment during all plant operating conditions. In addition, the ability of the SGs to remove heat from the primary system is relied upon during certain analyzed events. The Palisades technical specifications [5.a] require the integrity of the SG tubes to be monitored at each refueling outage against the following performance criteria:

Page 11

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 Structural Integrity Performance Criterion (SIPC):

All in-service steam generator tubes shall retain structural integrity over the full range of normal operating conditions (including startup, operation in the power range, hot standby, and cooldown, and all anticipated transients included in the design specification) and design basis accidents. This includes retaining a safety factor of 3.0 against burst under normal steady state full power operation primary-to-secondary pressure differential and a safety factor of 1.4 against burst applied to the design basis accident primary-to-secondary pressure differentials. Apart from the above requirements, additional loading conditions associated with the design basis accidents, or combination of accidents in accordance with the design and licensing basis, shall also be evaluated to determine if the associated loads contribute significantly to burst or collapse. In the assessment of tube integrity, those loads that do significantly affect burst or collapse shall be determined and assessed in combination with the loads due to pressure with a safety factor of 1.2 on the combined primary loads and 1.0 on axial secondary loads.

Accident Induced Leakage Performance Criterion (AILPC):

The primary to secondary accident induced leakage rate for the limiting design basis accident, other than a SG tube rupture, shall not exceed the leakage rate assumed in the accident analysis in terms of total leakage rate for all SGs and leakage rate for an individual SG. In the Palisades Unit 1 SGs, for all types of degradation, leakage is not to exceed 0.3 gpm per SG. In addition, the C* alternate inspection and repair criterion (hot and cold legs) reserves 0.1 gpm for each leg for hypothetical defects deep within the tubesheet; hence the net leakage limit is 0.1 gpm.

Operational Leakage Performance Criterion (OLPC):

The RCS operational primary-to-secondary leakage through any one steam generator shall be limited to 150 gallons per day (0.104 gpm). Palisades has implemented an additional administrative operational leakage limit of 0.05 gpm (72 gpd) [5.a].

7.0 INSPECTION SCOPE The 1D28 work scope included eddy current (ECT) inspections, primary side visual inspections, and secondary side visual inspections in each of the two Palisades replacement steam generators (SGA and SGB). These inspection activities are further defined in the degradation assessment [8.g], ECT inspection plan [1 0.b ], secondary side inspection plan [ 1 0.a], and primary side visual inspection procedures [ 1 0.e, 1 0.f]. A detailed summary of the ECT inspections performed on the in-service tubes is provided in Table 7-1. All ECT techniques are justified for use through the ECT site-validation document [ 1 0.c].

There were three groups of tubes inspected at 1D28: tubes in service at the beginning of 1D28, tubes out of service at the beginning of 1D28, and tubes that required sleeves at 1D28. This third population was comprised of tubes from the first two populations.

7.1 Tubes in service at 1D28

a.

Bobbin Probe

i. Full length ECT bobbin coil examination of all in-service tubes ( except row 1, 2, and 3 U-bends) in both SGs.

b. ECT +Point' coil examinations (both SGs):

1.

100% of rows 1, 2, and 3 U-bends.

11.

100% of hot leg from TTS + 4" to a minimum of 13.5" below the bottom of the expansion transition.

111.

100% of free span dings >5V between TSH and TSC.

1v.

100% of>2V dents at eggcrate, diagonal bar, and vertical strap intersections between TSH and TSC.

Page 12

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

v. 50% of historical %TW calls at diagonal bars and vertical straps The original scope was 25% of historical calls which was expanded upon confirmation of crack like indications at vertical straps. Since historical % TW calls have only been inspected once every 4 inspections, separated into 4 populations of 25%, the expansion was to the next 25% population (i.e., indications that were last inspected 3 outages ago). The results of the expanded scope were all NDF therefore no further expansion was needed.

v1.

100% of historical trackable (TRA) indications VII. The outer 3 peripheral tubes at the cold leg from TTS+4" to TTS-2" for detection of possible loose parts or wear signals. The periphery region is defined to be the outer three (3) tubes exposed to the annulus, all tubes in rows 1 through 4, and the inner three (3) tubes around the stay cylinder region.

c.

Special interest examinations (+Point' coil):

1. All current outage bobbin I-code signals

11. All eggcrate bobbin % TW s called during the current outage 111. All wear scars 2: 40%TW by bobbin IV. All new %TWs indications regardless of location

v. The hot leg square bend region of tubes surrounding SGB tube R99-C140 v1. All bobbin foreign object and foreign object wear indications v11. Bounding of foreign object signals (new in 1D28 and RPC-confirmed PLPs from 1R27) and foreign object wear at all elevations. These bounding exams continued until a one tube deep perimeter has been examined in which no PLP or foreign object wear indication is identified.

v111. Bounding of locations in tubes recently plugged that had PLP indication or foreign object wear near the TTS.

IX. All tube regions unable to be examined effectively with bobbin probe due to data quality concerns.

d.

Special interest examinations (Ghent probe):

1. Sample of locations in SGA (60 tubes) to confirm +Point' SAi and SCI indications This was not a planned scope and was added to address the large number of crack-like indications identified at 1D28 7.2 Tubes De-plugged for inspection at 1D28

a. All de-plugged tubes were inspected with the same scopes as the in-service tubes at 1D28 (except for the C/L de-plugged tubes that had pre-service CE Rolled plugs removed - these were all inspected at C/L TSC with +Point because they had never been inspected with ECT before).

7.3 Tubes that were sleeved at 1D28

a.

Bobbin Probe

i. All installed sleeves were inspected for position verification

b. +Point' coil

i. All sleeves were inspected for baseline data.

7.4 Scope Expansions The scopes/results discussed above address 100% of the population of interest except for items 1. b. v and 1.d where the following scope expansions were performed in 1D28:

Page 13

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 Expansion of the +Point' inspections for the historical % TW indications at vertical straps and diagonal bars from 25% to 50% to address the crack like indications identified in the initial 25% population (Item 1.b.v above). There were no crack like indications identified in the expanded scope therefore no further expansion was needed.

Expansion of using the Ghent probe in SGA as additional confirmation of crack like indications identified in 1D28 (item 1.d above) 7.5 Primary Side Visual Inspections (Both SGs)

The primary side work activities included visual examination of the primary channel head and all installed tube plugs. The purpose of the as-found and as-left visual examination of the primary channel heads (both H/L and C/L) is to assess general material condition, to identify and remove foreign objects, if any and to complete the cladding inspection in accordance with the Framatome procedure for bowl inspections to address Nuclear Safety Advisory Letter NSAL-12-1 [10.fJ. The visual examination of all installed tube plugs was performed in accordance with Sections 3.5.3 and 6.9 of the EPRI PWR Steam Generator Examination Guidelines [2.b] using the Framatome plug inspection procedure [ 1 0.e].

7.6 Secondary Side Scope (Both SGs)

The secondary side work activities included visual inspection and foreign object search and retrieval (FOSAR) at the TTS in the tube-to-shell annulus and divider lane. All visually accessible passages between tubes were viewed from the tube bundle periphery on each leg. All findings were documented in the Framatome foreign object tracking system (POTS). Steam drum inspections were performed in both Steam Drums.

Page 14

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 Table 7-1: 1D28 Eddy Current Inspection Scope Summary Pa lisada1; Llt1it 1 11 D28 08f2i024 SG EC Status R~pol't

.$(G A

A A

B El B

B 8

B*

8

!'l B

8 B

El a 191h b- - HIL S:lraigh:s R Oln'II -6 obb -

i'L...

lghts

-3 Bo'bb- - C,'L CanayCart.e Rows '1-6, RPC HI Toi;i of Tt1!Je5,hee C C/1-op of ub st1 ul RIPC PLPJSSIIFOSAR Addi o,i;a6aris R C Row U-8e11d CSI IL Total Tests All Pfcgrams IL L

L

'L C HIL Top of Tubesheel R C Ci' Top of Tu!le!ihee C L.i' SIi OSA Addi oc:atlon~

RIPC R C Bmt 1;! 9~

C 2*138 (00 Rf'C tio; s C

ooatl s

F:IPC OF)' LOCi1!ioJi(;

otal Tests All P'rngramsi

4. (071i-V 2)

G ~)

Exams.

IPla __ e 7212 3

29.,

00 52 1 1 17~19 35, 72 7719

, 87 3B

n.

3 1

2 73

-178 12 Exa nns Aeq L d 7212 341 1 1 17D 7553

'953 2s, 171 6

52 1211 17919 351 172 17'9 7 "19

'9.7 38 172 3

1 52,

2.

731 7812 EX:i!IITISJ v:i lti;'.lt <!

721 2 34'1 1 1 170 755..1 9-3 29 171 56 52 1"11

,ccm1pl-:t~

100,00%

100.00%

100.0 %

1 0, G..'.l"/i

100.0,.*w 100.0*'1/4 100,00%

100.0. ~-

100.00%

7919 100.00%

5 351 172 179 n m 9 _7 38

'112 3

1 52 2

731 100.0 o/,

100.00%

100.IJO3/4 100.0 %

100.00%

100.am 100.00%

100.00%

100.0,;w 100.IJ0%

100.00%

100.0 o/

100.00%

7812 100.(!0°,t, Sp,eci.all lnlier,esti+IPoint Diaanoslfo Exams A

RflC HI SI A

CCfL SI A

C LU:le:nd SI A

RPC end SI p~nston A

ot.il ~slss All SI Pr~r-arns B

C HI SI B

Rf'C CJ'L SI 8,

RPC l,.U:le:nd $ I B,

PC U-d I Exp nsl n Total Tesl>s All SI Plll!!;lrams Ex.am,,

EXams Ex&tl1:5l IPla

!icl Ac IMcl ~va ltiatod,Cl)llill)IOl:u 15-8 600 1581 1.s 1 100.0,:w 600 100.00%

158 100,00'l'

20_9_* ---1 100.0 !;lo/

2548 100.00'1/4 254S 2.548

'I 100.00%

575 575

575, 100.00%

97 97 97

'100.0()0/

___ 2 __ 14 _______

2 __ 14 _______ 2 __

. 4........... 100.00%

1003 1 Ill 16sa

1 o.00%

ADDITION INFO'RMATION A

/1, 13 8

IL Plugs Visu' s'

~ VI s Visual Exam Plu g,s Pl 119s Plarmed l!1!ipe-e ed 600 6.,

493 493 100.00'!-'.

Page 15

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 8.0 INSPECTION RESULTS 8.1 Tube Degradation Identified The following tube degradation mechanisms were identified during the 1D28 steam generator eddy current inspections:

Diagonal bar (DB) support wear Vertical strap (VS) support wear Eggcrate (EC) support wear Foreign object (FO) wear (historical)

Axial outer diameter stress corrosion cracking (ODSCC) at hot leg eggcrate intersections Axial ODSCC at a dented vertical strap intersection Axial ODSCC at hot leg top-of-tubesheet (TTS) locations Circumferential ODSCC at hot leg top-of-tubesheet (TTS) locations Axial primary water stress corrosion cracking (PWSCC) within the hot leg tubesheet Axial primary water stress corrosion cracking (PWSCC) at a dented vertical strap intersection These degradation mechanisms are a subset of the mechanisms that have been previously identified in the Palisades SGs during past inspections and illustrated in Table 8-1. Table 8-1 also identifies the number of indications detected for each mechanism.

8.1.1 Tube Plugging and Stabilization Tube plugging, stabilization and sleeving is discussed in reference [9.g].

8.1.2 ECT Results Table 8-2 through Table 8-4 summarize the reported DB wear, VS wear, and EC wear percent through-wall (%TW) depth statistics for outage 1D28.

Figure 8-2 illustrates the combined (i.e., DB, VS, and EC) percent through-wall growth of support wear during cycle 28 for each SG.

In SGA five (5) bobbin Support wear calls were 2:40%TW. Four of the five calls were confirmed by RPC to be axial crack-like indications. All five tubes will be either plugged or sleeved depending on flaw location. In SGB three (3) bobbin Support wear calls were 2:40%TW. All three calls were confirmed by RPC to support wear. All three tubes will be either plugged or sleeved depending on flaw location. Table 8-5 includes the final disposition for tubes with 2:40% TW wear.

Table 8-6 provides details of the historical foreign object (FO) wear. Details of SCC Indications in SGA both ODSCC and PWSCC are provided in Appendix A. Details of SCC Indications in SGB both ODSCC and PWSCC are provided in Appendix B.

For the axial ODSCC indications identified in Appendix A and Appendix B, the NDE maximum depth (% TW) is calculated using Appendix 128431 (TTS) or Appendix 128432 (Eggcrate/ freespan) regression statistics, where the through-wall depth is calculated as a function of NDE voltage. The depth values shown in the table reflect the 11 % TW reduction in the calculated depth as specified in Reference [ 5.e]. The structural length and structural depth values provided in Appendix A and Appendix B correspond to the structurally equivalent dimensions for the indications whose axial depth profiles were measured (i.e., "line by line" measurements).

The structurally Page 16

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 equivalent dimensions correspond to a rectangular flaw, which would burst at the same pressure as a flaw with the measured axial depth profile. These dimensions were determined using the methods described in Section 5.1.5 of reference [2.d]. For the remaining indications that were not profiled, the maximum depth and length measurements were used as the dimensions of the evaluated rectangular flaw, a conservative measure.

8.1.3 1 D28R De-plug Inspection and Return to Service Due to the step change in pluggable indications at 1D28 and the corresponding loss of heat transfer area, all previously-plugged tubes were reviewed to determine the potential to be returned to service with no repair or with repair (sleeving) to restore available plugging margin for the steam generators at Palisades [10.i]. Additionally, a strategy was developed that identified sleeving criteria to be used on these de-plugged tubes (if needed) as well as tubes with pluggable indications identified at 1D28 [ 10.1]. As mentioned in Section 5.0 all de-plugging and sleeving activities were performed in 2025, referred to as 1D28R, and implemented in accordance with a separate inspection plan [10.j]. The results of all repair and ECT activities performed on de-plugged tubes is summarized in reference

[10.k] and will be discussed in the separate Operational Assessment Document [9.g].

Page 17

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 Table 8-1: 1 D28 Indication Totals by Degradation Mechanism Indications Degradation Mechanism SGA SGB Total OD Axial at Support 900 313 1213 OD Axial at Dented Support 1

0 1

OD Axial at TSH Transition / Sludge Pile 14 10 24 OD Axial in Freespan (no ding) 2 1

3 OD Axial in Freespan Ding 0

0 0

OD Axial at Ding in Square Bend 0

0 0

OD Circ in TSH Expansion Transition 52 9

61 OD Circ in Non-Expanded Tubesheet (Note 1) 21 9

30 ID Axial at Support at Dent 1

0 1

ID Axial in TSH Expanded Region 15 8

23 ID Axial in TSH Expansion Transition 36 2

38 ID Axial Near Tube End (Note 2) 0 0

0 ID Axial in U-bend 0

0 0

ID Circ in TSH Expanded Region 29 1

30 Foreign Object Wear 24 7

31 Wear at Support (Note 3) 1749 1686 3435 Wear at Dented Support 1

1 2

Tube-to-Tube Wear 0

0 0

No Tubesheet Expansion 0

0 0

Obstructed 0

1 1

Other 0

0 0

Total 2823 2039 4862 Notes

1.

Per the degradation assessment [8.g, Section 5.1] All tubes with non-expanded regions were previously preventatively plugged.

2.

Per degradation assessment [8.g, Section 4.5] Tubes are only inspected to the full C* depth on the HL and TSC-2" on the CL. Area near the tube end was not inspected in 1D28.

3.

These do not include any Bobbin wear indications that were classified as non-wear by RPC (e.g., NDF, SAI)

Page 18

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 Table 8-2: 1 D28 Diagonal Bar Wear Number of New Depths Repeat Depths Growth Rate of Repeats Indications (3/4TW)

(3/4TW)

(3/4TW/EFPY)

SG New Repeat Average Upper Maximum Average Upper Maximum Average Upper Maximum 95th 95th 95th A

18 112 13.9 18.6 22 15.7 27.0 41.0 0.05 4.11 5.73 B

8 95 16.8 23.0 24.0 17.3 28.0 31.0 1.0 4.01 9.55 A&B 26 207 14.8 21.8 24 16.4 27.0 41.0 0.48 4.27 9.55 Table 8-3: 1 D28 Vertical Strap Wear Number of New Depths Repeat Depths Growth Rate of Repeats Indications (3/4TW)

(3/4TW)

(3/4TW/EFPY)

SG New Repeat Average Upper Maximum Average Upper Maximum Average Upper Maximum 95th 95th 95th A

22 600 15.2 23.0 28.0 18.3 32.0 39.0 0.61 3.82 7.64 B

19 673 14.8 20.6 26.0 19.9 33.0 44.0 0.33 3.19 7.64 A&B 41 1273 15.1 23.0 28.0 19.1 32.0 44.0 0.46 3.19 7.64 Table 8-4: 1 D28 Eggcrate Wear Number of New Depths Repeat Depths Growth Rate of Repeats Indications (3/4TW)

(3/4TW)

(3/4TW/EFPY)

SG New Repeat Average Upper Maximum Average Upper Maximum Average Upper Maximum 95th 95th 95th A

139 834 14.7 20.0 27.0 15.4 23.0 35.0 0.36 2.55 5.10 B

66 817 16.7 24.0 27.0 15.8 23.0 37.0 0.25 2.55 5.73 A&B 205 1651 15.3 22.8 27.0 15.6 23.0 37.0 0.30 2.55 5.73 Table 8-5: 1 D28 Wear Indication Repair SG Row Col o/oTW(Bobbin) 1D28 Disposition A

54 83 41 Tube Plugged A

91 120 40 Tube Plugged A

115 76 40 Tube Repaired with Sleeve B

48 9

44 Tube Plugged B

44 103 41 Tube Plugged B

109 52 41 Tube Plugged Page 19

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 Table 8-6: 1 D28 Foreign Object Wear Indications (VOL/SVl)(Sorted by% TW)

Depth Axial Circ.

SG Row Col Elev Offset Ind ETSS Extent Extent

(%TW)

(in.)

B 127 62 TSH 0.19 SVI 49 27901.1 0.21 0.40 A

126 105 TSH 0.29 SVI 46 27901.1 0.27 0.40 A

134 93 TSH 0.08 SVI 40 27901.1 0.24 0.30 A

133 64 TSH 0.08 VOL 36 21998.1 0.24 0.43 A

132 93 TSH 0.03 VOL 35 21998.1 0.29 0.35 B

129 62 TSH 0

SVI 34 27901.1 0.24 0.35 A

131 64 TSH 0.24 VOL 33 21998.1 0.29 0.43 A

137 90 06H 11.2 VOL 33 21998.1 0.32 0.15 A

33 138 02H 0.05 VOL 31 21998.1 0.40 0.33 A

35 138 02H

-3.2 VOL 31 21998.1 0.27 0.33 A

96 33 TSH 0.24 VOL 31 21998.1 0.27 0.30 A

33 138 01H 5.68 VOL 30 21998.1 0.51 0.35 A

115 64 TSH 2.99 VOL 30 21998.1 0.43 0.50 A

114 125 TSH 0.12 SVI 28 27901.1 0.18 0.34 A

117 58 VS7 4.76 VOL 28 21988.1 0.23 0.30 A

33 138 02H

-10.35 VOL 26 21998.1 0.29 0.25 A

127 106 TSH 0.05 VOL 26 21998.1 0.32 0.43 A

33 138 02H

-6.48 VOL 25 21998.1 0.27 0.43 A

52 59 TSH 0.21 VOL 25 21998.1 0.24 0.45 B

137 92 TSH 10.45 VOL 25 21998.1 0.27 0.30 B

137 92 TSH 12 VOL 24 21998.1 0.27 0.30 A

20 117 TSH 0.19 VOL 23 21998.1 0.32 0.35 B

65 110 TSH 0.29 VOL 23 21998.1 0.32 0.30 B

115 74 06H

-0.75 VOL 22 21998.1 0.27 0.30 A

130 63 TSH 1.47 VOL 21 21998.1 0.37 0.35 A

92 29 TSH 0.24 VOL 20 21998.1 0.29 0.33 A

103 122 TSH 0.64 VOL 19 21998.1 0.43 0.35 A

118 125 TSH 0.16 VOL 16 21998.1 0.29 0.40 B

55 82 TSH 4.91 VOL 16 21998.1 0.27 0.35 A

104 127 TSH 0.56 VOL 15 21998.1 0.27 0.35 A

104 121 TSH 0.53 VOL 14 21998.1 0.27 0.35 Page 20

framatome Document No.: 51-9382488-002 350 300 Ill 250 C:

0 co 200 "C

0...

150 Cl)

..c E

J z 100 50 0

>=2 >=4

<2 to <4 to <6 SGA 0 0

0 CJSGB 0

0

>=6 to <8 21 6

Palisades Steam Generator Condition Monitoring for 1 D28 Figure 8-1: 1 D28 Bobbin % TW Wear Distributions

>=8 to

<10 78 32 Palisades 1 D28 Bobbin % TW Distributions - August 2024 l* S~ DSG,

>=10 >=1 2 >=14 >=16 >=18 >=20 >=22 >=24 >=26 >=28 >=30 >=32 >=34 >=36 >=38

~

~ >~O

<12 <14 <16 <18

<20

<22 <24

<26

<28

<30 <32

<34

<36

<38 <40 173 326 326 243 177 125 81 42 39 21 28 15 10 12 7

115 236 318 27 5 206 134 119 77 60 30 27 13 10 9

7 3

Measured Wear Depth (% TW)

Page 21

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 Figure 8-2: 1 D28 Tube Support Wear Growth Rate Distributions SGA and 5GB Tube Support Wear Growth - 1 D28 1.0 0.9 0.8 0.7 z,

I --- SGA -

sGs I

5 0.6

.Q e

'; 0.5

~

I

~ 0.4 u

0.3 0.2 0.1 0.0

-8

-6

-4

-2 0

2 4

6 8

10 12 Growth Rate (% TW/EFPY)

Table 8-7: 1 D28 Ghent Exams SG Tube(R-C)

Elev RPC Offset Ghent Offset Ghent IND RPC IND A

6-55 TSH

-0.18

-0.16 SAi SAi A

8-57 TSH

-0.09

-0.19 SAi SAi A

21-124 TSH

-0.09

-0.03 SCI SCI A

24-111 TSH

-0.13

-0.15 SAi SAi A

25-42 TSH

-0.07

-0.13 SAi SAi A

28-121 TSH

-0.02

-0.03 SCI SCI A

28-121 TSH 0.04 0.09 SCI SCI Page 22

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 SG Tube(R-C)

Elev RPC Offset Ghent Offset Ghent IND RPC IND A

32-115 TSH 0.4 0.42 SCI SCI A

32-115 TSH 0.56 0.57 SAi SAi A

32-115 TSH 1.09 1.08 SAi SAi A

36-123 TSH

-0.33

-0.27 SAi SAi A

60-95 02H 0.53 0.91 SAi SAi A

60-97 01H

-0.53

-0.56 SAi SAi A

61-106 02H 0.56 0.51 SAi SAi A

65-114 02H 0.13 0.11 SAi SAi A

67-96 01H

-0.13

-0.19 SAi SAi A

68-89 01H

-0.64

-0.77 SAi SAi A

68-89 03H

-0.4

-0.43 SAi SAi A

68-97 TSH 0.51 0.45 SAi SAi A

70-91 01H

-0.62

-0.51 SAi SAi A

70-105 TSH 0.22 0.23 SCI SCI A

70-105 TSH 0.33

-0.03 SCI SCI A

70-111 01H

-0.13

-0.11 SAi SAi A

70-111 01H 0.98 0.24 SAi SAi A

70-111 02H 0.9 0.93 SAi SAi A

73-98 TSH 0.67 0.59 SAi SAi A

74-95 01H 0.69 0.8 SAi SAi A

74-99 TSH 0.71 0.67 SAi SAi A

80-85 TSH 0.44 0.43 SAi SAi A

81-118 TSH

-0.11

-0.09 SCI SCI A

82-97 02H

-0.53

-0.61 SAi SAi A

82-97 03H 0.6 0.88 SAi SAi A

83-102 01H

-0.11

-0.08 SAi SAi A

83-102 01H 0.51 0.56 SAi SAi A

83-102 01H 0.69 0.69 SAi SAi A

85-92 TSH

-0.16

-0.13 SCI SCI A

86-91 01H 0.2 0.05 SAi SAi A

86-93 01H

-0.56

-0.53 SAi SAi A

88-89 TSH

-0.07

-0.11 SAi SAi A

90-97 TSH

-0.04

-0.11 SAi SAi A

90-125 01H

-0.8

-0.96 SAi SAi A

91-110 TSH

-0.16

-0.21 SAi SAi A

91-120 02H 0.93 0.83 SAi SAi A

91-120 TSH

-0.16

-0.03 SCI SCI A

91-120 TSH

-0.13

-0.06 SCI SCI A

92-107 01H

-0.71

-0.75 SAi SAi Page 23

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 SG Tube(R-C)

Elev RPC Offset Ghent Offset Ghent IND RPC IND A

92-119 TSH

-0.27

-0.24 SCI SCI A

92-119 TSH

-0.18

-0.15 SAi SAi A

94-89 TSH

-0.09

-0.19 SAi SAi A

95-102 TSH

-0.13

-0.14 SAi SAi A

96-99 01H

-0.78

-0.83 SAi SAi A

96-99 02H 0.71 0.56 SAi SAi A

96-103 01H

-0.67

-0.72 SAi SAi A

97-102 TSH 0.22 0.2 SAi SAi A

99-114 02H 0.75 0.64 SAi SAi A

99-114 03H 0.64 0.77 SAi SAi A

101-94 01H 0.76 0.83 SAi SAi A

101-96 TSH

-0.02 0.06 SCI SCI A

102-85 TSH

-0.07

-0.16 SAi SAi A

104-97 TSH

-0.13

-0.06 SCI SCI A

104-97 TSH 0.04 0.11 SCI SCI A

105-92 TSH

-0.13

-0.11 SCI SCI A

106-95 TSH

-0.11

-0.03 SCI SCI A

106-99 TSH

-0.07 0

SCI SCI A

106-135 03H

-0.78

-0.77 SAi SAi A

107-66 TSH 0

-0.08 SAi SAi A

107-80 TSH

-0.09

-0.16 SAi SAi A

107-108 01H

-0.42

-0.43 SAi SAi A

107-108 02H 0.29 0.03 SAi SAi A

107-108 05H 0.64 0.8 SAi SAi A

108-103 TSH

-0.2

-0.14 SCI SCI A

109-102 TSH

-0.16

-0.06 SCI SCI A

110-101 TSH

-0.16

-0.09 SCI SCI A

110-103 01H 0.49 0.59 SAi SAi A

113-104 01H

-0.4

-0.45 SAi SAi A

121-74 TSH

-0.31

-0.37 SAi SAi A

70-153 01H 0.91 0.91 NDF SAi A

70-105 TSH 0.42 SAi A

74-99 TSH 0.58 SAi A

81-118 TSH 0.04 SCI A

81-118 TSH 0.09 SCI 8.2 Primary Channel Head Visual Examination Results Remote visual examinations of the four primary channel heads (hot leg and cold leg in each SG) were performed. No degradation of the cladding, welds, or structures was identified within the channel heads. All previously installed plugs in both channel heads of both SGs were visually examined. No plug deficiencies were identified.

Page 24

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 One metallic piece (FOTS 496) was found in the SGA Bowl. The foreign object was documented in Framatome CR 2024-2207. Part was retrieved from bowl by site RP. A photograph of part is shown below in Figure 8-3. The foreign object is boxed in red in Figure 8-3.

Figure 8-3: FOTS 496 SGA Bowl FME 8.3 Tube Slippage Monitoring Tube slippage was evaluated through the bobbin probe auto-analysis process. No tube slippage within the tubesheet was detected during the bobbin probe examinations.

8.4 Secondary Side Examinations In accordance with Section 10 of EPRI Integrity Assessment Guidelines [2.a], secondary side integrity must be evaluated as part of the CM and OA. A strategy that includes periodic TTS water lancing and secondary side visual inspections has been incorporated into the Palisades Unit 1 SG integrity plan. The 1D28 degradation assessment, reference [8.g], and Framatome secondary side inspection plan, reference [ 1 0.a ], provide the details of the secondary side work-scope during 1D28 (see Section 7.6).

8.4.1 Results of Foreign Object and PLP Inspections The bobbin coil and rotating coil data was reviewed for possible loose part and related wear indications. Based on the periphery inspection, PLP indications found in the 1D28 ECT data, and historical items from previous outages, Table 8-9 and Table 8-10 were developed to document inspection results on SGA and SGB respectively. These tables only include items that have the possibility to affect tube integrity. Sludge rocks, non-metallic items, and other items that are benign to tubes were not included in the summary tables.

8.4.2 Steam Drum Inspections The following items/areas were inspected in the steam drums of both SGs:

underside surface of the dryer deck moisture separator can deck and hatch selected steam separator cans Page 25

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 area above the dryer deck steam deflector and steam outlet nozzle entire length of feedwater ring and aux feed water piping feedwater distribution box and supports feedring supports and U-bolts j-nozzles (external) selected I-nozzles (internal) u-bend/top of bundle area In SGA the following items were reported: foreign material, loose separator can, loose dryer hardware, and excessive sludge loading.

In SGB the following items were reported: loose bolting, foreign material, and excessive sludge loading.

Further discussion and details of resolutions can be found in the individual condition reports below:

Table 8-8: Framatome Steam Drum Condition Reports Framatome Palisades Description CR No.

CR No.

2025-2107 25010705 FM Identified & Removed from SGA Steam Drum Palisades 2025-2109 25010704 Loose primary separator identified during Palisades Steam Drum Inspection 2025-2113 25010706 Loose Dryer Hardware Identified "A" SG Palisades 2025-2118 25010710 FM Identified Inside Bravo Steam Drum Palisades 2025-2136 25010782 Loose Dryer Bolting Identified Bravo SG Palisades Steam Drum 2025-2137 25010814 Excessive Sludge Loading Steam Drums Palisades 2025-2143 25010778 SG A Chevron fastener damage 8.4.3 Deposit Mapping Framatome performed a Deposit Mapping analysis on the bobbin ECT data to quantify the tube OD deposit loading of both SGs. The analysis calculated the following values for tube OD deposit loading:

SG A: 2206 lb SG B: 2220 lb The deposit mapping indicates that, in both SGs, the heaviest deposits are in the elevations between the second and eighth tube support plates on the hot leg side of the steam generator. The tube support analysis revealed the presence of Page 26

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 deposition immediately below, immediately above, or within the tube support intersections for most of the intersections of the steam generator. References [10.m] and [10.n] contain detailed discussion of the analysis. Notably, Figure 8-4 and Figure 8-5 show depictions of the areas of highest deposition, which is quite similar in both SGs.

Figure 8-4: Palisades SG A Tube OD Deposit Loading 20.0 mils and thicker I

CFD-VIEW:-C:\\Depo<it_

Functions Gizmos

--* rsPo7

TSP06

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1------,i------- TSP 02 TSP 01 All 300000 27.0000 24.0000 21.0000 180000 15.0000 12 0000 90000 6.0000 30000 0.0000 ttj:;~::r u -s1Jr f c:J Objects :

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c Page 27

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 Figure 8-5: Palisades SG B Tube OD Deposit Loading 20.0 mils and thicker I

CFD*VIEW:* C:\\Deposit_Ma isacles_u1_sg1B_2024_CFD_Files\\ALLPFG

!_ile _!di t

!_iew

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~~illQ~I Colonnap SUrface Pr:inary Secondary Vector]

I Ready.

8.5 1 D28 Tube Repair Required TSP07 TSP06 TSP OS TSP 04 TSP 03 TSP 02 TSP 01 All 300000 27.0000 24 0000 21 0000 18 0000 150000 12 0000 90000 60000 30000 0.0000 l~0.0132 Zone :

1 lil=D

., ~ Cri:>~C During 1D28 973 (SGA: 712, SGB: 261) tubes were found with indications that required evaluation for either plugging to remove from service or sleeving to return to service. Final tube plugging and repair documentation is contained in the separate Operational Assessment Document [9.g].

Page 28

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 Table 8-9: 1D28 SGA FOSAR Summary FOTS Type Location Affected Description 1D28 Disposition Remaining in Recommended Future SSI ID Tubes SG Inspection Action 106 Legacy TSC

+0.00 132-65 HIST-Small Historical Metallic Foreign Object 134-65 diameter wire confirmed at 1 D28. Retrieved in 1 D28. Also found as FOTS #495.

No Preform Visual Inspection 131-64 108 Legacy TSH 77-16 Wire Historical Metallic Foreign Object.

75-16 Part Removed at 1 D28.

74-15 72-15 76-15 73-14 70-15 No None 71 -16 69-16 73-16 71 -14 68-15 67-16 111 Legacy TSH

+0.00 133-62 Flex/Flat Metal Tube Historic Metallic Foreign object.

132-61 130-63 @TSH.

1 D28 SSI attempted retrieval but found object firmly fixed in place.

Yes Preform Visual Inspection 131-62 Tubes in the area of the FO are pluaaed.

112 Legacy TSH

+0.00 130-109 Metallic (maybe flex)

Historic Metallic Foreign object.

129-110 Tube 130-109 @TSH 1 D28 SSI confirmed object firmly Yes Preform Visual Inspection fixed in place.

127-110 116 Legacy TSH

+0.00 134-75 Metal flat object Tube 1028 No part located in area 136-71 134-75 @TSH during SSI inspection.

No None 137-74 Page 29

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 FOTS Type Location Affected Description 1D28 Disposition Remaining in Recommended Future SSI ID Tubes SG Inspection Action 138-75 153 Legacy TSH +0.39 129-68 Flat Metal Object Historic Metallic Foreign object.

130-67 Tube 129-68 @ TSH 1 D28 SSI confirmed object firmly fixed in place.

128-69 Yes Preform Visual Inspection 130-69 131-68 187 Legacy TSH

+0.00 119-46 Possible weld slag 1028 No part located in area 118-45 Tube 119-46 @TSH during SSI inspection.

No None 120-45 190 Legacy TSH

+0.00 33-162 Metal Object Tube 1028 Legacy foreign object 31-162 33-162 @TSH retrieved during outage.32-161 No None 34-161 36-161 331 Legacy TSH +1.19 125-56 Flat Metallic Object Historic Metallic Foreign object.

126-55 Tube 125-56 @ TSH 1 D28 SSI confirmed object firmly fixed in place.

Yes Preform Visual Inspection 126-57 128-55 387 Legacy TSH

+0.00 50-153 Flat Metallic Object 1028 No part located in area 49-154 Tube 50-153 @TSH during SSI inspection.

No None 51-154 388 Legacy TSH +0.12 49-156 Flat Metallic Object 1028 No part located in area 48-155 Tube 49-156 @TSH during SSI inspection.51-156 47-154 No None 49-154 52-155 48-153 Page 30

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 FOTS Type Location Affected Description 1D28 Disposition Remaining in Recommended Future SSI ID Tubes SG Inspection Action 50-153 51-154 53-154 428 Legacy TSH +0.41 109-122 Metal Object - ECT 1028 No part located in area 110-121 PLP/LAR @ TSH during SSI inspection.

111-122 No None 108-121 456 Legacy TSH

+11.7 61-156 Flat Object near ECT 1028 No part located in area 59-156 PLP/HR@TSH during SSI inspection.

No None 467 Legacy TSH 0

117-126 FLAT Historic Metallic Foreign object.

115-126 1 D28 SSI confirmed object firmly fixed in place.

116-125 Yes Preform Visual Inspection 116-127 114-125 468 Current TSH 0.00 66-149 SMALL Wire Small metallic wire, located and 64-149 removed in 1 D28.65-148 No None 63-148 469 Current TSH 0.00 70-149 SMALL Object located and confirmed fixed 68-149 REFLECTIVE in place at 1 D28.

OBJECT Yes Perfom Visual Inspection 69-148 470 Current TSH 0.00 80-143 BRISTLES Bristles located on periphery 78-143 inspection. FOSAR did not see the object in the area when inspected.

No None 82-143 81-142 471 Current TSH 0.00 96-139 Small diameter wire Small wire located in 1 D28 and 95-138 removed.

No None Page 31

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 FOTS Type Location Affected Description 1D28 Disposition Remaining in Recommended Future SSI ID Tubes SG Inspection Action 97-138 96-137 472 Current TSH 0.00 97-1 36 BRISTLES Object located in 1028 and 95-136 removed.96-135 No None 94-1 35 473 Current TSH

+1.00 126-77 SMALL DIAMETER Part located in area and removed 127-78 WIRE from area found in 1 D28. Part lost in annulus on removal from Yes Perform Visual Inspection 129-78 generator.

131-78 475 Current TSH 0.00 96-25 METALLIC PIECE Part located in 1 D28 and removed 97-26 No None 477 Current TSC 0.00 124-103 BRISTLE Part located in 1 D28. Lost during 125-102 retrieval attempt.

Yes Perform Visual Inspection 478 Current TSC 0.00 132-61 BRISTLE Part located in 1 D28 and removed 133-60 No None 480 Current TSC 0.00 87-20 METALLIC FLAKE Part located in 1 D28 and removed 85-20 No None 481 Current TSC 0.00 123-46 FLEX GASKET Part located in 1 D28 and removed 122-45 No None 124-47 487 Current TSC 0.00 1-116 FLEX Part located in 1 D28 and removed No None 488 Current TSH 0.00 3-140 Bristle Part located in 1D28. Unable to Yes Perform Visual Inspection retrieve.

491 Current TSH 0.00 13-62 NAIL-LIKE OBJECT Part located in 1D28. Unable to retrieve. Part is not in contact with 12-61 tubes and is in low flow region.

Yes Perform Visual Inspection 14-61 517 Current TSH +1.03 126-103 Metallic Object Yes Perform Visual Inspection Page 32

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 FOTS Type Location Affected Description 1D28 Disposition Remaining in Recommended Future SSI ID Tubes SG Inspection Action 127-102 127-104 Part found at 1 D28. Removal was unsuccessful as part was firmly 128-103 fixed in place. 126-105 and 127-126-105 106 were added to plug list to address VOL with wear present.

540 Current TSH 0.00 134-63 Wire Part located in 1 D28 and removed 133-64 132-63 131-64 130-63 No None 129-64 128-63 127-62 543 Current TSH

+0.00 129-64 Metallic Object.

Part located in 1D28. Retrieval 128-63 attempts were unsuccessful. Part is fixed in place.

Yes Perform Visual Inspection 127-62 547 Current TSH +0.13 90-31 ECT PLP/LAR Tube Part located in 1 D28 but unable to 91 -30 90-31 @TSH access with retrieval tooling.

Yes Perform Visual Inspection 89-30 Page 33

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 Table 8-10: 1 D28 SGB FOSAR Summary FOTS Type Location Affected Description 1D28 Disposition Remaining in the Recommended Future SSI Action ID Tubes SG 48 Legacy TSC 108-35 Metal Like Object Historic object. Verified fixed in

+0.00 111-36 Tube 108-35 at TSC place at 1 D28.

110-35 Yes Perform Visual Inspection 109-36 49 Legacy TSH 70-151 Metallic object Historic object. Verified fixed in

+0.00 69-150 place at 1 D28.68-151 67-152 66-153 Yes Perform Visual Inspection 68-153 64-153 69-152 67-154 51 Legacy TSH 103-30 Possible Metal Historic object. Verified fixed in

+0.00 102-29 Object. Tube 103-30 place at 1 D28.

@TSH Yes Perform Visual Inspection 101-30 79 Legacy TSC 117-126 Metal Object Historic object. Verified fixed in

+0.00 118-125 Tube 117-126@TSC place at 1 D28.

Yes Perform Visual Inspection 116-125 130 Legacy TSH +0.20 3-14 Object Historic object. Verified location in 1 D28. Area is inaccessible for Yes Perform Visual Inspection retrieval.

133 Legacy Hot leg 133-104 Rock Historic object. Verified fixed in 132-105 place at 1 D28.

Yes Perform Visual Inspection 223 Legacy TSH +0.25 86-143 HIST Item 50 ECT Historic object. Verified fixed in 87-142 PLP/HR@TSH place at 1 D28.

Yes Perform Visual Inspection 88-143 Page 34

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 FOTS Type Location Affected Description 1D28 Disposition Remaining in the Recommended Future SSI Action ID Tubes SG 85-142 225 Legacy TSH 49-124 FLEX Historic object. Retrieval not

+0.50 48-125 possible due to location.47-124 51-124 53-124 55-124 Yes Perform Visual Inspection 57-124 56-125 54-125 52-125 50-125 226 Current TSC 1-60 FLEX Object located in 1 D28. Area is 0.00 inaccessible for SSI retrieval.

Yes Perform Visual Inspection 227 Current TSC 4-57 Bristle Object located in 1 D28. Area is 0.00 3-58 inaccessible for SSI retrieval.

Yes Perform Visual Inspection 229 Current NTL 1-160 Wire/ Flex Fixed to Object located in 1 D28. Object Yes Perform Visual Inspection TTS at NTL confirmed fixed in place.

231 Current TSH 130-63 WIRE Object located in 1 D28. Retrieval

+1.00 128-63 attempted but was unsuccessful.

Bounding tubes of part were 127-62 plugged as disposition of foreign 129-62 object.

131-62 Yes Perform Visual Inspection 132-63 133-62 134-63 232 Current 102-37 No None Page 35

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 FOTS Type Location Affected Description 1D28 Disposition Remaining in the Recommended Future SSI Action ID Tubes SG 101-36 TSH 100-37 SMALL DIAMETER Object located in 1 D28. Object 0.00 WIRE removed 1 D28.

101-38 234 Current TSC 18-161 Bristle bundle Object located in 1 D28. Object 0.00 19-162 removed 1 D28.17-162 No None 18-163 249 Current TSH 123-94 WIRE Object located in 1 D28. Object

+0.25 124-93 removed 1 D28.

122-93 No None 125-94 265 Current TSC 108-33 WIRE Object located in 1 D28. Object 0.00 107-32 removed 1 D28.

107-34 No None 106-33 Page 36

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 Table 8-11: 1 D28 Foreign Object Wear Summary SG Row Col Elev Offset Ind Depth ETSS Tube Plugged at Tube Stabilized Historical or

(%TW) 1D28 at 1D28 New Wear A

20 117 TSH 0.19 VOL 23 21998.1 No No New A

33 138 02H 0.05 VOL 31 21998.1 No No New A

33 138 01H 5.68 VOL 30 21998.1 No No New A

33 138 02H

-10.35 VOL 26 21998.1 No No New A

33 138 02H

-6.48 VOL 25 21998.1 No No New A

35 138 02H

-3.2 VOL 31 21998.1 No No Historical A

52 59 TSH 0.21 VOL 25 21998.1 No No New A

92 29 TSH 0.24 VOL 20 21998.1 No No New A

96 33 TSH 0.24 VOL 31 21998.1 No No New A

103 122 TSH 0.64 VOL 19 21998.1 No No New A

104 121 TSH 0.53 VOL 14 21998.1 No No New A

104 127 TSH 0.56 VOL 15 21998.1 No No New A

114 125 TSH 0.12 SVI 28 27901.1 Yes Yes New A

115 64 TSH 2.99 VOL 30 21998.1 No No New A

117 58 VS?

4.76 VOL 28 21988.1 No No New A

118 125 TSH 0.16 VOL 16 21998.1 No No New A

126 105 TSH 0.29 SVI 46 27901.1 Yes Yes New A

127 106 TSH 0.05 VOL 26 21998.1 Yes Yes New A

130 63 TSH 1.47 VOL 21 21998.1 No No Historical A

131 64 TSH 0.24 VOL 33 21998.1 No No Historical A

132 93 TSH 0.03 VOL 35 21998.1 No No Historical A

133 64 TSH 0.08 VOL 36 21998.1 No No Historical A

134 93 TSH 0.08 SVI 40 27901.1 Yes No New A

137 90 06H 11.2 VOL 33 21998.1 No No New B

55 82 TSH 4.91 VOL 16 21998.1 No No Historical B

65 110 TSH 0.29 VOL 23 21998.1 No No New B

115 74 06H

-0.75 VOL 22 21998.1 No No New B

127 62 TSH 0.19 SVI 49 27901.1 Yes Yes Historical B

129 62 TSH 0

SVI 34 27901.1 Yes Yes New B

137 92 TSH 10.45 VOL 25 21998.1 No No Historical B

137 92 TSH 12 VOL 24 21998.1 No No Historical Page 37

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 9.0 CONDITION MONITORING To satisfy condition monitoring requirements, all degradation mechanisms detected during the 1D28 outage must meet the structural and leakage performance criteria described in Section 6.0. Satisfaction of the CM criteria can be demonstrated either analytically or through in-situ pressure testing. Structural and accident induced leakage integrity are evaluated analytically based on the degradation mechanism's characteristics, including circumferential extent, axial length, and percent through-wall depth. Operational leakage integrity is monitored via leakage detection systems and procedures during plant operation.

Consistent with the structural integrity criteria described in Section 6.0, the limiting pressure loading occurs at a value of three times the normal operating differential pressure. For Palisades, a bounding value of 3960 psid is used

[8.g]. In addition to pressure loads, the CM must also consider the impact of non-pressure accident loads if they could have a significant effect on the burst pressure of the degraded tubes. A review of the screening guidance in Section 3.7.2 of the integrity guidelines, [2.a] (and the degradation assessment, [8.g]) provides the basis for concluding that non-pressure accident loads are not limiting for any of the degradation types identified in the Palisades SG tubes.

For a degraded tube to be returned to service, the degradation must be measurable using a qualified ECT sizing technique, and the degradation must be evaluated as acceptable for continued operation (a.k.a. repair on sizing).

Each of the Palisades wear mechanisms was evaluated in this manner. Additionally, all tubes with crack-like indications located outside the hot and cold leg C* tube-end exclusion region are required to be plugged upon detection. The sizing techniques qualified for use at Palisades are identified in the degradation assessment [8.g]

and detailed in the ECT technique site validation document [ 1 0.c].

9.1 Input Parameters Table 9-1 identifies the input parameters used to perform the condition monitoring assessment. Sizing uncertainty and probability of detection characteristics for each technique utilized is provided in the degradation assessment,

[8.g]. These inputs were used within Framatome's software implementation of the SG Flaw Handbook equations

[15], in order to generate the structural limit curves discussed in [8.g] and presented below. The 3960 psid 3~P value is based on a conservative assessment of the Palisades secondary side steam pressure as measured during cycle 28 and the 1.4 *accident pressure differential of 2600 psid is based off the main steam line break. It is also expected to conservatively represent the operating pressure differential (with 3x margin) during the next fuel cycle.

Page 38

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 Table 9-1: Palisades Unit 1 Steam Generator Input Values Parameter Value, [8.g]

Desired probability of meeting burst pressure limit 0.95 Tubing wall thickness 0.042 inch Tubing outer diameter 0.750 inch Mean of the sum of yield and ultimate strengths adjusted to 141.02 ksi [8.g]

operating conditions of 650°F Standard deviation of the sum of yield and ultimate 6.604 ksi strengths adjusted to operating conditions of 650°F Mean of the yield strength adjusted to operating conditions 33.102 ksi (Note 1) at 650°F Normal Operating Pressure Differential (i.e., NOPD) 1320 psid 3 x Normal Operating Pressure Differential (i.e., 3L'lP) 3960 psid Main Steam Line Break Pressure Differential 2600 psid Cycle 28 EFPY 1.57 EFPY Notes:

1.

The mean yield strength is taken as the minimum of all Alloy 600MA CE SGs with 0.042" wall thickness (40.27 ksi) and adjusted using the minimum ratio of hot/RT for Alloy 600MA tubing (0.822) from Tables 4-l and 4-2 of the Flaw Handbook [2.d].

9.2 Evaluation of Structural Integrity 9.2.1 Tube Support Wear All tube support wear identified during the 1D28 outage was evaluated using the flaw model described in the Flaw Handbook as "axial part-throughwall degradation < 135° in circumferential extent."

Since the maximum circumferential extent of a single 100% TW wear scar formed by a long flat bar positioned tangentially to the tube surface (i.e., VS, DB, and EC wear) is 55°, the < 135° model remains bounding. Even for two wear flaws in the same axial plane, the total circumferential extent would be well below the 135° limit established by this model; and this assumes no circumferential separation between the flaws. In reality, since multiple support flaws occur in the same axial plane the model adequately separates circumferentially to enable flaws to be evaluated independently.

Hence, this flaw model is appropriate for the evaluation of support wear.

The bobbin probe was used to measure the depth of tube support wear through the application of ETSS 96004.1.

CM limit curves applicable to VS, DB, and EC support wear, provided for SGA and SGB in Figure 9-1 and Figure 9-2, respectively. These figures also include the percent through-wall depth of each indication reported, plotted at an assumed axial flaw length of 4 inches. This length is judged to bound the length of all potential support wear.

Since all support wear flaws plot below the CM limit curves, it is concluded that the structural integrity performance Page 39

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 criterion was satisfied with respect to this degradation mechanism during the operating period preceding the 1D28 outage.

9.2.2 Foreign Object Wear Foreign object wear indications were detected during 1D28 as detailed in Table 8-11. All flaws were screened for +Point voltage as shown in Figure 9-3 and satisfied V-THR criterion.

Based on lead analyst discretion, flaws were sized with ETSS 21988.1 and categorized as VOL or ETSS 27901.1 and categorized as SVIs. This is detailed in Table 8-11. In addition to satisfying V-THR, the flaws were evaluated using the burst pressure model for part-through-wall degradation <135° circumferential extent (with finite axial length) discussed earlier.

The overall measured length and maximum depth of each of these foreign object wear flaws is plotted with the CM Limit on Figure 9-4 and Figure 9-5.

Since all flaws plot below the CM limit curves, it is concluded that the structural integrity performance criterion was satisfied with respect to foreign object wear during the operating period preceding the 1D28 outage.

9.2.3 Axial ODSCC During 1D28, axial ODSCC indications were detected at the top of tubesheet, freespan and eggcrate intersections on the hot leg side of both SGs.

Additionally, one indication was detected at a dented vertical strap indication in SGA (17-52 VS4-0.02) where the dent had a bobbin voltage of 1.81 volts.

Quantities of Axial ODSCC in each area of the SGs is shown in Table 8-1.

Appendices A.1.1, A.1.2, B.1.1, and B.1.2 provides a listing of all axial ODSCC indications reported during 1 D28.

This degradation mechanism was evaluated using the "part-through-wall axial cracking" degradation model as described in Section 5.1.4 of the Flaw Handbook [2.d]. The maximum depth and overall length of axial cracks located in the freespan and at egg crates were determined using +Point ETSS 128432. Those located at the TTS were evaluated using +Point ETSS 128431. These techniques were also used to measure the axial depth profile of the deeper and longer ODSCC indications. The profile data was used to determine the structurally significant dimensions of those flaws based on the methods described in Section 5.1.5 ofreference [2.d]. The sizing regressions provided in the EPRI ETSS documentation for these techniques overestimate the depth of ODSCC in CE SG tubing

( e.g., Palisades) by 11 % TW [ 5.e]. As such, an 11 % correction is subtracted as detailed in reference [ 5.e]

9.2.3.1 Axial ODSCC at TTS Axial ODSCC at TTS was found at the 1D28 Inspection. Quantities of indications in each generator are shown in Table 8-1. The dimensions of each axial ODSCC indication at TTS are plotted along with the CM limit curves in Figure 9-6 through Figure 9-9.

Figure 9-6 and Figure 9-8 show indications prior to line-by-line sizing being performed compared to the CM limit developed for 1D28. Figure 9-7 and Figure 9-9 show indications after line-by-line sizing was performed to develop structurally equivalent flaws for flaws that initially failed CM.

One indication in SGA and one indication in SGB exceeded the condition monitoring limit and were in situ pressure tested to verify structural integrity. Results of In Situ Pressure Testing are discussed in Section 9.4. All other indications of Axial ODSCC at TTS were below the condition monitoring limit, therefore structural integrity was satisfied for the previous cycle.

Page 40

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 9.2.3.2 Axial ODSCC at TSP During the 1D28 inspection Axial ODSCC indications at TSPs were found in both generators. Quantities of indications in each generator are shown in Table 8-1 The dimensions of each axial ODSCC indication at TSP are plotted along with the CM limit curves in Figure 9-10 through Figure 9-13. Figure 9-10 and Figure 9-12 show indications prior to line-by-line sizing being performed for 1D28 for SGA and SGB respectively. Figure 9-11 and Figure 9-13 show indications after line-by-line sizing was performed to develop structurally equivalent flaws for flaws which failed to meet CM for 1D28.

Six indications in SGA and three indications in SGB exceeded the condition monitoring limit and were in situ pressure tested to verify structural integrity. Results of In Situ Pressure Testing are discussed in Section 9.4 All other indications of Axial ODSCC at TSP were below the condition monitoring limit therefore structural integrity was satisfied for the previous cycle.

9.2.4 Circumferential ODSCC Circumferential ODSCC indications were detected at the hot leg TTS in both SGs during the 1D28 outage (Appendix A.1.3, Appendix B.1.3). Quantities of indications are shown in Table 8-1. These indications were evaluated with the flaw model described as "circumferential cracking under pressure loading with restricted lateral motion," (Section 5.2.1 of the Flaw Handbook, [2.c]). +Point technique ETSS 21410.1 provided the dimensional information for the flaws. Based on industry guidance in Reference [2.h], Figure 5-63 regression parameters were used with Section 5.2.1 of the Flaw Handbook to develop a CM limit. These regression parameters are shown in Table 9-2.

The indications are plotted along with the CM limit curve in Figure 9-19 and Figure 9-20. Since the largest indication (39.47 PDA) would burst at a pressure greater than the 3960 burst pressure limit, it is concluded that all the flaws satisfied the structural integrity performance criterion throughout the operating period preceding 1D28.

9.2.5 9.2.5.1 Table 9-2: EPRI TR-107197 P1 Figure 5-63 Regression Parameters Parameter Value Slope 1

Intercept 0

STEyx 13.8 Axial PWSCC Axial PWSCC at TTS During the 1D28 Inspection axial PWSCC indications were detected in the hot leg tubesheet regions of SGA and SGB. Quantities of indications are shown in Table 8-1. These flaws were sized with ETSS H-20511.1 and are plotted along with the Condition Monitoring limit for 1D28 on Figure 9-25 and Figure 9-26 for SGA and SGB respectively. As shown on Figure 9-25 and Figure 9-26 several indications were measured above the condition monitoring curve. These indications were evaluated against the Lstr value calculated for Palisades using guidance in reference [2.d] of 0.41 inches. The maximum axial extent calculated for a flaw of Axial PWSCC at TTS for 1D28 was 0.37 inches. Per Reference [2.c, Section 4.5.2.1.c], If axial lengths measured are less than or equal to Lstr, condition monitoring is met for structural integrity. Since all axial PWSCC flaws at TTS were bounded by Lstr, condition monitoring for structural integrity for 1D28 was met.

9.2.5.2 Axial PWSCC at Dent During the 1D28 Inspection one axial PWSCC indication was detected in a VS of SGA at a dent. This flaw was sized with ETSS H-96703.1 and is plotted along with the Condition Monitoring limit for 1D28 on Figure 9-38. As shown in Figure 9-38 that indication measured above the condition monitoring curve. This indication was evaluated Page 41

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 against the Lstr value calculated for Palisades using guidance in reference [2.d] of 0.41 inches. The axial extent calculated for this instance of Axial PWSCC at VS at dent for 1D28 was 0.27 inches. Per Reference [2.c, Section 4.5.2.1.c] If axial lengths measured are less than or equal to Lstr (0.411 in.) condition monitoring is met for structural integrity. This single instance of Axial PWSCC at a dented VS is bounded by Lstr, thus condition monitoring for structural integrity for 1D28 was met.

9.2.6 Circumferential PWSCC During the 1D28 Inspection circumferential PWSCC indications were detected in the hot leg tubesheet regions of SGA and SGB. Quantities of indications for this mechanism are shown in Table 8-1. These flaws were sized with ETSS H-96701.1 and are plotted along with the Condition Monitoring limit for 1D28 on Figure 9-32 and Figure 9-33 for SGA and SGB respectively. None of the circumferential PWSCC indications exceeded the PDA limit of 54 developed for the 1D28 inspections. Structural integrity was met for the 1D28 inspection for these indications.

9.3 Evaluation of Accident Induced Leakage Integrity 9.3.1 Wear Volumetric degradation that is predominantly axial in orientation, and is at least 0.25 inches long, will leak and burst at essentially the same pressure [2.a]. The Palisades 1D28 support wear and foreign object wear flaws meet this description. The evaluations in Sections 8.2.1 and 8.2.2 demonstrated that the Palisades wear identified during the 1D28 outage satisfied the burst integrity criteria at a pressure of 3960 psi. Consequently, the leakage integrity of tubes with support wear and foreign object wear at the much lower SLB (Steam Line Break) pressure differential of 2600 psi is also demonstrated by that evaluation.

In addition, indication signal amplitude screening limits have been established which may be used to evaluate the accident leakage integrity of identified SG tube flaws [2.c], and the values applicable to Palisades SG tubes are identified in the degradation assessment [8.g]. Signal amplitudes that are less than the listed threshold values are sufficient to demonstrate leakage integrity at the SLB pressure differential.

The +Point probe signal amplitudes for foreign object wear flaws (VOL/SVI) identified during 1D28 are plotted on Figure 9-3. Since all the foreign object wear voltage values lie below the 1.6V V-THR-L value in Table 4-1 of Reference [2.c], it is demonstrated that these flaws satisfied the accident induced leakage performance criteria.

Thus, it is concluded that all the tubes with wear flaws satisfied the Palisades accident induced leakage performance criteria during the operating period prior to 1D28.

9.3.2 ODS CC The accident induced leakage integrity of tubes with axial and circumferential ODSCC is evaluated by comparing the limiting reported +Point probe signal amplitude with the leakage threshold screening limits from Reference [2.c]

and documented in Reference [8.g] for the 1D28 inspection.

9.3.2.1 Axial ODSCC at TTS All Axial ODSCC flaws in the TTS region are shown for SGA and SGB on Figure 9-14 and Figure 9-15. The Figures also include threshold and critical voltage limits for the damage mechanism as discussed above. One flaw in SGA,32-115 TSH, exceeded the critical voltage limit and was screened in for In Situ Pressure Testing. Results are discussed in Section 9.4. One flaw in SGB, 30-51 TSH, exceeded the threshold voltage screening criteria and screened in for In Situ Pressure Testing. Results are discussed in Section 9.4. All other Axial ODSCC at TTS flaws were less than the voltage threshold screening value.

Page 42

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 9.3.2.2 Axial ODSCC at TSP All Axial ODSCC flaws in the TSP region are shown for SGA and SGB on Figure 9-16 and Figure 9-17. The Figures also include threshold and critical voltage limits for the damage mechanism as discussed above. Two flaws in SGA,15-122 0lH and 31-58 05H, exceeded the threshold voltage limit and were screened in for In Situ Pressure Testing and determined testing was required. Results are discussed in Section 9.4. One flaw in SGB, 73-94 0lH, exceeded the threshold voltage screening criteria and was also screened in for In Situ Pressure Testing. As shown on Figure 9-18 this flaw exceeded the MD-THRL(Maximum depth threshold for leakage testing) limit for less than 0.1 in., therefore In Situ Pressure testing to verify AILPC was not required per Reference [2.c].

9.3.2.3 Circumferential ODSCC at TTS All Circumferential ODSCC flaws in the TSP region are shown for SGA and SGB on Figure 9-21 and Figure 9-24.

The Figures also include threshold and critical voltage limits for the damage mechanism as discussed above.

In SGA, one flaw, 109-102 TSH, exceeded the critical voltage and multiple flaws exceeded the threshold voltage.

These flaws along with In Situ pressure test screening results are shown in Table 9-3. All flaws that exceeded the threshold voltage were in situ pressure tested except 103-66 @TSH and 103-70 @TSH. 103-66 @TSH passed the last check of the leakage screening guidelines with a crack angle of less than 20 degrees as shown on Figure 9-22 and did not require In Situ pressure testing. 103-70 @TSH passed the last check of the leakage screening guidelines with a crack angle ofless than 20 degrees as shown on Figure 9-23 and did not require In Situ pressure testing.

Table 9-3: SGA Circumferential ODSS at TTS In Situ Screening Results SG Tube Location Ind Volts IPTGL Screening Results A

109-102 TSH -0.06 SCI 4.45 In Situ Tested 1D28R A

110-101 TSH -0.09 SCI 2.13 In Situ Tested 1D28R A

30-55 TSH -0.14 SCI 1.66 In Situ Tested 1D28R A

103-66 TSH -0.13 SCI 1.49 In Situ Test Not Required A

103-98 TSH 0.03 SCI 1.46 In Situ Tested 1D28R A

21-124 TSH -0.03 SCI 1.45 In Situ Tested 1D28R A

100-103 TSH 0 SCI 1.42 In Situ Tested 1D28R A

104-97 TSH -0.06 SCI 1.4 In Situ Tested 1D28R A

92-119 TSH -0.24 SCI 1.36 In Situ Tested 1D28R A

32-115 TSH 0.42 SCI 1.27 In Situ Tested 1D28R A

103-70 TSH 0 SCI 1.19 In Situ Test Not Required A

107-100 TSH -0.03 SCI 1.13 In Situ Tested 1D28R A

100-103 TSH 0 SCI 1.1 In Situ Tested 1D28R A

107-102 TSH 0.09 SCI 1.03 In Situ Tested 1D28R In SGB, one flaw, 30-51 TSH, exceeded the threshold voltage. Based on screening, this indication required In Situ Pressure Testing. Results ofln Situ Pressure Testing are discussed in Section 9.4 9.3.3 PWSCC The accident-induced leakage integrity of tubes with axial and circumferential PWSCC is evaluated by comparing the limiting reported +Point probe signal amplitude with the leakage threshold screening limits from Reference [2.c]

and documented in Reference [8.g] for the 1D28 inspection.

Page 43

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 9.3.3.1 Axial PWSCC at TTS All Axial ODSCC flaws in the TTS region are shown for SGA and SGB on Figure 9-27 and Figure 9-30. The Figures also include threshold and critical voltage limits for the damage mechanism as discussed above. Two flaws in SGA, 107-80 TSH and 107-66 TSH, exceeded the critical voltage limit and were screened in for In Situ Pressure Testing. As shown on Figure 9-28 and Figure 9-29 these flaws exceeded the MD-THRL limit for less than 0.1 in.

therefore In Situ Pressure testing to verify AILPC was not required per Reference [2.c].

One flaw in SGB,42-103 TSH, exceeded the threshold voltage screening criteria and was also screened for In Situ Pressure Testing. As shown on Figure 9-31 this flaw exceeded the MD-THRL limit for less than 0.1 in. therefore In Situ Pressure testing to verify AILPC was not required per Reference [2.c].

All other Axial PWSCC at TTS flaws were less than the voltage threshold screening value for SGA and SGB.

9.3.3.2 Axial PWSCC at VS Dent All Axial PWSCC flaws in the VS at a dent are shown for SGA on Figure 9-39. The Figure also includes threshold and critical voltage limits for the damage mechanism as discussed above.

All Axial PWSCC at VS Dent flaws were less than the voltage threshold screening value therefore leakage integrity is confirmed for the 1D28 inspection.

9.3.3.3 Circumferential PWSCC at TTS All Circumferential PWSCC flaws in the TTS region are shown for SGA and SGB on Figure 9-34 and Figure 9-37.

The Figures also include threshold and critical voltage limits for the damage mechanism as discussed above.

All flaws that exceeded the voltage threshold for SGA are shown in Table 9-4. Three flaws met criteria in ISPTGL to not require testing to verify leakage integrity. The evaluation of 24-139 @TSH -8.04 is shown in Figure 9-35.

The evaluation of 48-61 @TSH -7.84 is shown in Figure 9-36.

As shown in Table 9-4, several indications were determined to be exempt from In Situ Testing. Per Reference [2.c ],

"For circumferential cracks within the tubesheet, it is doubtful that in situ testing of tubes with full-depth expansions would lead to meaningful results, even if the cracks were located very near the top of the tubesheet." The indications in Table 9-4 meet this criterion due to the indications being in the tube sheet. Further discussion of evaluation of leakage criteria for these indications is discussed below.

Table 9-4: SGA Circumferential PWSCC at TTS In Situ Screening Results SG Tube Location Ind Volts IPTGL Screening Results A

36-23 TSH -11.04 SCI 5.47 Exempt from In Situ Testing A

36-23 TSH -10.61 SCI 5.18 Exempt from In Situ Testing A

36-23 TSH -7.79 SCI 3.82 Exempt from In Situ Testing A

48-67 TSH -11.63 SCI 3.73 Exempt from In Situ Testing A

36-23 TSH -6.13 SCI 3.07 Exempt from In Situ Testing A

24-13 TSH -1.2 SCI 2.43 Exempt from In Situ Testing A

24-139 TSH -8.04 SCI 2.21 In Situ Test Not Required A

36-23 TSH -8.24 SCI 2

Exempt from In Situ Testing A

48-61 TSH -7.84 SCI 1.53 In Situ Test Not Required A

24-13 TSH -10.91 SCI 1.48 Exempt from In Situ Testing A

24-13 TSH -4.53 SCI 1.26 Exempt from In Situ Testing Page 44

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 For SGB, as shown in Figure 9-37 all flaws were under the voltage threshold and further screening was not required.

9.3.4 Circumferential PWSCC TS leakage evaluation Nine circumferential PWSCC indications among three separate tubes were identified and subsequently failed analytical condition monitoring and in-situ pressure test screening criteria for accident-induced leakage. As discussed above, EPRI In Situ Pressure Test Guidelines [2.c] Section D.2.2 specifically exempts these indications from testing, as testing provides no meaningful results because of the combination of the presence of the tubesheet and non-accident conditions when performing tests. The guidelines further state that "Technically justified leakage models may be used to assign leak rates to indications within the tubesheet". Based on this, a conservative analytic calculation based on the method detailed in the IAGL [2.a] Section 9.4 was performed to assess the potential accident-induced leakage from these indications.

The evaluation used two conservative assumptions that the indications were, 1) all 100% deep notch-type flaws and 2) 100% deep for the full circumferential extent of the measured NDE extent of the indication. Leak rates for each flaw were calculated in accordance with the IAGL Section 9.4 equations based on these conservative assumptions as if the flaws were not constrained by the presence of the tubesheet.

Separately, an analysis was performed that used the IAGL Section 9.4 equations to determine the leak rate of a hypothetical flaw through varying thicknesses up to 12.5" (the hot leg C* depth). The differences in leak rates as a function of leak path thickness from this study were used to create a nondimensional throttling coefficient that was used to adjust the unconstrained leak rate to a leak rate corresponding to that from each flaw at its respective depth in the tubesheet. This coefficient was applied to the unconstrained leakrate detailed in the paragraph above.

The indications and their individual and collective leakage contributions are tabulated in Table 8 5. The total calculated accident-induced leakage for these nine indications is 0.00239 gpm.

As a check, the analytical C* leakage contribution of a single tube was calculated. Implementation of the C* ARC required assuming a 0.1 gpm accident-induced leakage in each leg. Palisades SGs have 8219 tubes. Dividing 0.1 gpm by 8219 yields a single-tube C* leakage of 0.000122 gpm. The flaws addressed here that lie below -10" from the top of tubesheet were calculated to leak between 0.0000373 and 0.000213 gpm. The largest leakage of these is almost twice that of a single-tube C* leakage, validating a conservative approach to the calculation method.

Table 9-5: Leakage Evaluation of Circumferential Indications in the Tubesheet ROW COL VOLTS IND Location Calculated leak rate (gpm) 24 13 1.48 SCI TSH -10.91 0.0000373 24 13 1.26 SCI TSH-4.53 0.0000363 24 13 2.43 SCI TSH -1.2 0.000865 36 23 3.07 SCI TSH -6.13 0.000152 36 23 5.47 SCI TSH-11.04 0.000628 36 23 5.18 SCI TSH -10.61 0.0000644 36 23 2

SCI TSH-8.24 0.000128 36 23 3.82 SCI TSH-7.79 0.000263 48 67 3.73 SCI TSH -11.63 0.000213 Sum:

0.0023869 Page 45

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framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 Figure 9-5: CM for Foreign Object Wear (ETSS H-27901.1) Both SGs

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Condition Monitoring Limit Flaws x/Dev-Before Lxl Sizing Page 55

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 Figure 9-11: SGA - CM for Axial ODSCC at TSP Locations (After Lxl Sizing)

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framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 Figure 9-12: SGB-CM for Axial ODSCC at TSP Locations (Before Lxl Sizing)

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framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 Figure 9-13: SGB-CM for Axial ODSCC at TSP Locations (After Lxl Sizing)

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framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 Figure 9-16: SGA Axial ODSCC TSP Voltage Screening

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framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 Figure 9-17: SGB Axial ODSCC TSP Voltage Screening

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framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 Figure 9-19: SGA CM for Circ ODSCC TTS (After Lxl)

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+Point Probe, ETSS H-20511.1 Document No.: 51-9382488-002 0.30 I

0.411 in.

I Lstr (Ref. 2.c,2.d) 0.55 NDE Length (Inches)

Series1 Flaws-after Lxl Sizing Lstr (5.1.1) 0.80 Page 70

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0.05 Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 0.30 Figure 9-26: SGB-CM for Axial PWSCC TTS

+Point Probe, ETSS H-20511.1 I

0.411 in. I Lstr(Ref 2.c,2.d) 0.55 NDE Length (Inches)

Series1 Flaws-after Lxl Sizing -- Lstr (5.1.1) 0.80 Page 71

framatome Document No.: 51-9382488-002 a:

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Palisades Steam Generator Condition Monitoring for 1028 Figure 9-27: SGA Axial PWSCC TTS Voltage Screening

+Point Probe, ETSS H-20511.1 4~-------------------------------------

3 2

107-80 TSH (0.19, 2.65) 1111

~,...

I 0 +------.......-----.......-----.......-----.......-----.......-----.......-----.......-----'

0 0.2 0.4 0.6 0.8 1.2 1.4 Axial Length (Inches)

- - - V-CRIT

- - -V-THR Flaws I

Page 72

framatome 100 90 80 70 60

§:

50 0

~

.c 40 C.

Cl) 0 30 20 10 0

0 0.02 Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 Figure 9-28: SGA 107-80 TSH PWSCC ISPTGL Figure 4-2 Screening 0.04 0.06 I

I I

- 7 I

Length does not exceed MDTHR-L for greater than 0.1 inch therefore leakage integrity is satisfied and In Situ Pressure Testing is not required per ISPTGL Rev.5 Figure 4-2.

0.08 Length (in.)

0.1 0.12 0.14 0.16

- MDTHR-L:ETSS 20511.1

~

SGA-R107-C80-TSH -0.16

L-Min=0.1 inch Page 73

framatome 100 90 80 70 60

~ 50

~

.c 40 C.

Cl) 0 30 20 10 0

0 0.02 Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 Figure 9-29: SGA 107-66 TSH PWSCC ISPTGL Figure 4-2 Screening 0.04 I

I

------~-----------

0.06 I

I I

I Length does not exceed MDTHR-L for greater than 0.1 inch therefore leakage integrity is satisfied and In Situ Pressure Testing is not required per ISPTGL Rev.5 Figure 4-2.

0.08 Length (in.)

0.1 0.12 0.14 0.16

- MDTHR-L:ETSS 20511.1

_...._ SGA-R107-C66-TSH -0.08

* L-Min=0.1 inch Page 74

framatome Document No.: 51-9382488-002

0.

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Palisades Steam Generator Condition Monitoring for 1028 Figure 9-30: SGB Axial PWSCC TTS Voltage Screening

+Point Probe, ETSS H-20511.1 4-.-----------------------------------------,

3 2

42-103 TSH I (0.37, 2.47) 0----------------------------------------'

0 0.2 0.4 0.6 0.8 1.2 1.4 Axial Length (Inches)

- - - V-CRIT

- - -V-THR Flaws I Page 75

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 Figure 9-31: 5GB 42-103 TSH PWSCC ISPTGL Figure 4-2 Screening 100 ----.-----------. -------------------------------.

90 80 70 60 50

-S 40 C.

a, C

30 20 10 1

I

i----

Length does not exceed MDTHR-L for greater than 0.1 inch therefore leakage integrity is satisfied and In Situ Pressure Testing is not required per ISPTGL Rev.5 Figure 4-2.

0- ----------------------------------------------

0 0.05 0.1 0.15 0.2 Length (in.)

0.25 0.3

- MDTHR-L:ETSS 20511.1

~

SGB-R42-C103-TSH -1.7

L-Min=0.1 inch 0.35 0.4 Page 76

framatome Document No.: 51-9382488-002 "iii C. -

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i al Palisades Steam Generator Condition Monitoring for 1028 Figure 9-32: SGA-CM for Circumferential PWSCC TTS

+Point Probe, ETSS H-96701.1 8000 ----------------------------------------------------,

7000 6000 5000 4000 ------: 3960 PSI:------------------'- !'----------------------

3000 2000 1000 I 54 PDAI 0 +-----.-------,------,------,------,-------.-----....-----'.....,...-----,--------1 3960 0

10 20 30 40 50 60 70 80 90 100 NDE Percent Degraded Area

Condition Monitoring Limit

-- 3*NOPD PDA Limit Flaws after Lxl Sizing Page 77

framatome Document No.: 51-9382488-002 "iii E:

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Palisades Steam Generator Condition Monitoring for 1028 Figure 9-33: SGB-CM for Circumferential PWSCC TTS

+Point Probe, ETSS H-96701.1 8000 -----------------------------------------------------,

7000 6000 5000 4000 --------c: 3960 PSI:------------------'..,-----------------------

3000 2000 1000 I 54 PDAI 0 +-----........ ----........ -----,-----....,....----.....,...----........ ----........ -----'......-----........ -----1 0

10 20 30 40 50 60 70 80 90 100 NDE Percent Degraded Area

Condition Monitoring Limit

-- 3*NOPD PDA Limit Flaws after Lxl Sizing Page 78

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 Figure 9-34: SGA Circumferential PWSCC TTS Voltage Screening

+Point Probe, ETSS H-96701.1 6 ~-----------------------;:::.-=..-=..-::...-::...-:::....-_-_-_-_-~--------~

5 a:

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2 36-23 TSH -7.79 (0.43, 3.82) 36-23 TSH -10.61 (0.50, 5.18) 36-23 TSH -11.04 (0.60, 5.47) 48-67 TSH-11.63 (0.45, 3.73) 36-23 TSH -6.13 (0.33, 3.07) 36-23 TSH -8.24 (0.30, 2.00) 24-13 TSH -10.91 (0.25, 1.48) 48-61 TSH -7.84 (0.28, 1.53) 24-13 TSH -4.53 (0.23, 1.26)

I :

0 +--------,------,----.......-------,------,----.......-------,,------,----.......------4 0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Circ Extent (Inches)

- - - V-CRIT

- - -V-THR Flaws I Page 79

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 Figure 9-35: SGA 24-139 TSH -8.04 Circ PWSCC TTS ISPTGL Figure 4-2 Screening 100 90 80 70 60

~ 50

~

.c 40 C.

QI C

30 20 10 0

0 5

10 I

I I

~-------------

I Crack Angle does not exceed MDrHR-L for greater than 20 degrees therefore leakage integrity is satisfied and In Situ Pressure Testing is not required per ISPTGL Rev.5 Figure 4-2.

15 Circumferential Length (Degrees) 20 25

- MDTHR-L:ETSS 96701.1

~

SGA-R24-C139-TSH

CAMIN = 20 Degrees 30 Page 80

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 Figure 9-36: SGA 48-61 TSH -7.84 Circ PWSCC TTS ISPTGL Figure 4-2 Screening 100 90 80 70 60

~ 50

~

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Cl) 0 30 20 10 0

0 5

I I

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10 15 20 Crack Angle does not exceed MDrHR-L for greater than 20 degrees therefore leakage integrity is satisfied and In Situ Pressure Testing is not required per ISPTGL Rev.5 Figure 4-2.

25 30 35 40 Circumferential Length (Degrees)

- MDTHR-L:ETSS 96701.1

SGA-R48-C61-TSH-7.84

*GAMIN= 20 Degrees 45 Page 81

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Palisades Steam Generator Condition Monitoring for 1028 Figure 9-37: 5GB Circumferential PWSCC TTS Voltage Screening

+Point Probe, ETSS H-96701.1 4~------------------------------------

3 ---------------------------------------------------

2 0 --------,-----,----....--------,-----,----....--------,-----,----....--------1 0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Circ Extent (Inches)

- - - V-CRIT

- - -V-THR Flaws I

Page 82

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 Figure 9-38: SGA-CM for Axial PWSCC at VS Dent

+Point Probe, ETSS H-96703.1 100 --------------------------------------------

90 80 J:

c..

60 Q)

C

§ 50 E

x cu

~ 40 w

C z 30 20 10

--- ----- ~------ -------------------------

I 0.411in. I Lstr(Ref.2.c,2.d) 0+------------..------',...._--------.--------------.--------'

0.10 0.35 0.60 NDE Length (Inches)

Condition Monitoring Limit Flaws-after Lxl Sizing Lstr 0.85 Page 83

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1028 Figure 9-39: SGA Axial PWSCC at VS Dent Voltage Screening

+Point Probe, ETSS H-96703.1 6~-------------------------------------

5 a:

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0 +---------,-----,------,----.......----.------,------,-----.-----,-----

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Axial Extent (Inches)

- - - V-CRIT

- - -V-THR Flaws I

Page 84

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 9.4 1 D28 In Situ Pressure Testing 9.4.1 SGA In Situ Pressure Testing Flaws listed on Figure 9-40 and Figure 9-41 were tested with In Situ Pressure Testing after being reviewed against the screening criteria in Reference [2.c]. Based on a review of the In Situ Pressure Test results there were no tube ruptures or leakage. Based on the guidance in Reference [2.c] structural and leakage integrity for the flaws was met for 1D28.

Detailed discussions ofln Situ Pressure testing set up and procedure are provided in Reference [ 1 O.h].

9.4.2 SGB In Situ Pressure Testing Flaws listed on Figure 9-42 were tested with In Situ Pressure Testing after being reviewed against the screening criteria in Reference [2.c]. Based on a review of the In Situ Pressure Test results there were no tube ruptures or leakage. Based on the guidance in Reference [2.c] structural and leakage integrity for the flaws was met for 1D28.

Detailed discussions ofln Situ Pressure testing set up and procedure are provided in Reference [ 1 O.h].

Page 85

framatome Document No.: 51-9382488-002 framatome S/G Row Col Location SAi @ TSH+0.57 A

32 115 SCI @ TSH+0.42 A

31 58 SAi @ OSH+0.72 A

82 37 SAi @ 02H+0.88 A

15 122 SAi @ 01H+0.8 A

68 89 SAi@ 01H -0.77 A

70 91 SAi @ OlH -0.51 A

95 88 SAi @ 01H -0.53 A

21 124 SCI @ TSH -O.D3 A

30 55 SCI @ TSH -0.14 A

92 119 SCI @ TSH -0.24 A

100 103 SCI @TSH+O A

103 98 SCI @ TSH+0.03 A

104 97 SCI @ TSH -0.06 A

107 100 SCI @ TSH -0.03 A

107 102 SCI @ TSH+0.09 A

109 102 SCI @ TSH -0.06 A

110 101 SCI @ TSH -0.09 Notes (Rev. 0):

Palisades Steam Generator Condition Monitoring for 1 D28 Figure 9-40: SGA In Situ Testing List p.1/2 Palisades Unit 1 - 1 D28 - SIG 1 A IN SITU LIST (Rev. 0)

EPRI ETSS Max

%TWD NDE Extent (in.)

Test Requirements l-28431(5AI) 78 0.4S(Ax), 0.61(Ci)

Proof and Leak Test Required 21410.l(SCI) 75 0.33(Ax), 0.69(Ci) 1-28432 62 1.04(Ax), 0.28(Ci)

Proof and Leak Test Required 1-28432 46 1.04(Ax]. 0.40 (Ci)

Proof and Leak Test Required 1-28432 76 0.77(Ax), O.SS(Ci)

Proof and Leak Test Required 1-28432 51 1.79(Ax), 0.35 (Ci)

Proof and Leak Test Required 1-28432 so

0. 72(Ax), 0.30{Ci)

Proof and Leak Test Required 1-28432 49 0.9l (Ax), 0.28(Ci]

Proof and Leak Test Required 21410.1 92 0.42(Ax), 0.42(Ci)

Leak Test Required, Proof if leakage occurs 21410.1 80 0.37(Ax), 0.42(Ci)

Leak Test Required, Proof if leakage occurs 21410.1 92 0.33(Ax), 0.22(Ci)

Leak Test Required, Proof if leakage occurs 21410.1 96 0.37(Ax), 0.25(Ci)

Leak Test Required, Proof if leakage occurs 21410.1 68 0.34(Ax], 0.86(Ci)

Leak Test Required, Proof if leakage occurs 21410.1 86 0.26(Ax), 0.29(Ci)

Leak Test Required, Proof if leakage occurs 21410.1 93 0.29(Axt, 0.29(Ci)

Leak Test Required, Proof if leakage occurs 21410.1 91 0.32(AX), 0.66(Ci)

Leak Test Required, Proof if leakage occurs 21410.1 90 0.49(Ax), 1.03(Ci)

Leak Test Required, Proof if leakage occurs 21410.1 97 D.34(Ax), 0.44(Ci)

Leak Test Required, Proof if leakage occurs Indications Ind Qty.

2 1

1 1

I 1

1 1

18

1. The indications on the above list have been screened against the in situ screening criteria and have been determined to require in situ testing.

2. Verify with Framatome Data Management that no ECT exams on target tubes planned in advance of the In Situ Test are Incomplete.

3. The maximum ECT probe size used in the tubes on t he above list is 0.610" in diameter.

Rev.

0 0

0

4. All tubes have been reviewed for dents, bulges, obstructions, ski p rolls, overexpansions or other indications that could interfere with insertion of the tooling or ability to seal. No such indications have been identified.

5. Tube end repair, to aid in tool insertion and sealing, may be performed at the t ask coordinat or's discretion.

6. Tube cleaning, to aid in tool insertion and sealing, may be performed at t he task coordinator's discretion.

7. Post In Situ ECT will be performed in the tubes on the above list including full length wit h Bobbin (TEC to TEH) and +Point sizing of the flaws specified on th is list.

framatome Framatclme lnti0tiEnglneering

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Figure 9-41: SGA In Situ Testing List p.2/2 Palisades Unit 1 -1D28 - S/G 1A IN SITU LIST (Rev. 0) clic,w 1.<psc.,a,-,t ~

4 /13/J_,-

1ndependent QDA

_;-[fl,JL i/>sfa";,..s Framato Page 86

framatome Document No.: 51-9382488-002 framatome 5/G Row Col Location B

3 58 OBS @ DSC -9.94 B

30 51 SAi@ TSH+0.75 B

1 44 SAi @ DBH+0.64 B

24 115 SAi @ 01H+0.53 B

75 92 SAi @ OlH+0.19 Notes (Rev. 0):

Palisades Steam Generator Condition Monitoring for 1028 Figure 9-42: 5GB In Situ Testing List

?alisades Unit 1 -1 028 - SfG 1B IN SITU LIST (Rev. 0)

EPRI ETSS Max

%TWO NDE Extent (in,.)

Test Requirements N/A N/A N/A Proof and Leak Test Required 1-28431 91 0.60(Ax), D.56(Ci}

Proof,md Leak Test Required 1*28432 93 l.89(Ax), O.ZS(Ci)

Proof and Leak Test Required 1-28432 53 O.93(Axl, O.40(Ci)

Proof and Leak Test Required 1-28432 55 1.25(Ax), 0.33(0]

Pmofand Leak rest Required lndkations Ind Qty.

1 1

1 s

1. The iridicatioris on the above list have been sc.reened against the in situ screening cr[teria and have been determined to require in situ t e ting.

. Verify with Framatome Data Management that no ECT exams on target tubes planned in advance of the fn Sit u Test are Incomplete.

3. The maximum ECT probe size used: Tubes 30-51,24-115, and 75-92 (0.610"), Tube 1-44 (0_560"), Tube 3-58 (Obstructed).

Rev..

0 0

0

4. All rubes have been reviewed for dents, bulges, obstructions, skip roll5, overexpansions or other indications that could interfere with insertion of the tooling or ability to seal. No such indications have been identified.

5. Tube E!nd repair, to aid in tool insertion and sealing, may be performed at t he task coordln11tor's discretfon.

6. Tube deaning, to aid in tool insertion and sealing, may be performed at the task coordinator's dlscretion.

7. Post In Situ ECT will be performed in tubes 30-51,24-115 and 75-92 including f ull length with Bobbin (TEC to 1 EH) and ;-Point sizing of the fla\\'VS specified on this fist.

8. Post tn itu ECT will be performed in t ube 1-44 including +Point sizing of the flaw specified on this list.

9. Post tn Sitl..i ECT is not required in tube 3-S8.

Framii!tOll)e Data M anagement J<--+-1 { -

...,-,s___r Framatom P.ige 1 of 1 Page 87

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 10.0 NOISE MONITORING In accordance with EPRI guideline recommendations [2.b, Appendix NJ, noise monitoring was performed through measurement comparisons of multiple past inspections and the 1D28 inspection from Palisades eddy current data at various Regions oflnterest (ROI) for Bobbin (Eggcrate, Freespan, and Vertical Strap locations), and +Point (top-of-tubesheet (TTS), dent/ ding, and u-bend locations) as identified in the degradation assessment [8.g]. These comparisons are to determine if the Palisades SG noise remains relatively unchanged from previous inspections and whether model assisted probability of detection (MAPOD) needs to be performed using Palisades-specific noise for any of the 1D28 OA evaluations.

As Figure 9-1 through Figure 10-6 demonstrate, the noise levels (as measured by eddy current inspection) are similar between the past several inspections with a slight increase seen in 1D28.

1R23 was the first outage at Palisades where ETSS 111524 (Appendix I technique for detection of circumferential PWSCC at TTS) was used, and as illustrated in Figure 10-7 the ETSS 111524 noise levels are bounding for the Palisades TTS noise measurements. Bobbin probe ETSS 1-28413 is the principal detection technique for axial ODSCC in the tube frees pan and supports (i.e. eggcrate and vertical strap) which can be adjusted using Palisades noise at each ROI to generate various POD distributions as is done in the Degradation Assessment which determined the bounding POD used in the operational assessment [8.g, Section 12.0 and Figure 12-3].

Review of the Palisades noise in 1D28 showed a small change in noise has occurred since 2014. POD assumptions for the OA for 1D28 will be adjusted accordingly using ROI specific bounding noise from 1D28 as required.

Page 88

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 Figure 10-1: Eggcrate Bobbin Noise Comparison - 2014 through 2024 (Both SGs) 1.00 0.95 0.90 0.85 0.80 0.75 0.70 0.65

>, = 0.60 ii ctl

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0.300 0.400 0.500 0.600 0.700 0.800 0.900 Voltage Vvm (Volts) 1.000 Page 89

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 Figure 10-2: Free Span Bobbin Noise Comparison - 2014 through 2024 (Both SGs) 1.00 0.95 0.90 0.85 0.80 ;vr -

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~ 0.60 ii 0.55 (ti

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~2020 FS_Auto f 2024 FS_Auto 0.300 0.400 0.500 0.600 0.700 0.800 0.900 1.000 Voltage Vvm (Volts)

Page 90

framatome Document No.: 51-9382488-002

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Palisades Steam Generator Condition Monitoring for 1 D28 Figure 10-3: Vertical Strap Bobbin Noise Comparison - 2014 through 2024 (Both SGs) 1.00

.,A 0.95

;:;,~

0.90 0.85 0.80 0.75 0.70 0.65 0.60 0.55 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00

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-- 2014 VS_Auto

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-- 2024 VS_Auto f---

0.500 Voltage Vvm (Volts) 0.600

- ~~JCA-A ~

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framatome Document No.: 51-9382488-002

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Palisades Steam Generator Condition Monitoring for 1 D28 Figure 10-4: TTS +Point' Noise Comparison - 2014 through 2024 (Both SGs) 1.00 0.95 0.90 0.85 0.80 0.75 0.70 0.65 0.60 0.55 0.50 0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 )1 0.00 0.000

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framatome Document No.: 51-9382488-002 1.00 0.95 0.90 0.85 0.80 0.75 0.70 0.65

~ 0.60

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0.35 0.30 0.25 0.20 0.15 0.10 Palisades Steam Generator Condition Monitoring for 1 D28 Figure 10-5: Dent +Point' Noise Comparison - 2010 through 2024 (both SGs)

+-

0.100 0.200 0.300 0.500 Voltage Vvm (Volts)

--2010DENT

2012 DENT

2014 DENT

~

2015 DENT

~

2017DENT

~

2018 DENT

~2020DENT 2024DENT 0.600 0.700 0.800 0.900 1.000 Page 93

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 Figure 10-6: U-bend +Point' Noise Comparison - 2010 through 2020 (Both SGs) 1.00 r---~---r---------::--~rn'.:P-""":::= =,---

==r=---,1 __ ___

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0.80 I -+----,'

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0.10 0.05 2014 Auto Ubend t--

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2018 Auto Ubend 11----+----t-----1---

-- 2020 Auto Ubend 2024 Auto Ubend t-0.00 ~ :.;.....e:;=---+------r---r-------r----+------r----.-----r------l 0.000 0.100 0.200 0.300 0.400 0.500 0.600 0.700 0.800 0.900 1.000 Voltage Vvm (Volts)

Page 94

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 Figure 10-7: ETSS 111524 to 2024 TTS Noise Comparison (Both SGs) 1 0.9 0.8 0.7 0.6

.... 8 0.5 0.4 0.3 0.2 0.1 0

0 I

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I 0.1 0.2 11.0 COMPUTER FILES 2024 TTS Mix_Auto

-ETSS 111524 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Voltage Vvm (Volts)

Table 11-1: Computer Files lists all computer files used in the development of this document.

All files were transferred to the following Framatome ColdStor directory:

\\cold\\General-Access\\51 \\51-9382488-001 \\official Table 11-1: Computer Files File Name Description Modified Date / Time Files used for Condition 1 D28-CM-Spreadsheets-Rev00 I.zip Monitoring Evaluations 2025/10/01 10:23 at 1D28 Eddy Current Testing In-Situ-ECT-Images.zip Graphics for In Situ 2025/04/03 11 :52 Candidates TS-CIRC-PWSCC-LeakRate.xlsx Supporting Calculations 2025/09/02 15:36 for CM 1

Page 95

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

12.0 REFERENCES

References identified with an(*) are maintained within [Palisades] Records System and are not retrievable from Framatome Records Management. These are acceptable references per Framatome Administrative Procedure 0402-01, Attachment 7. See page [2] for Project Manager Approval of customer references.

1. Nuclear Energy Institute Document NEI 97-06, "Steam Generator Program Guidelines", Revision 3, January 2011

2. EPRI Steam Generator Guidelines

a.

EPRI Report 3002020909, "Steam Generator Management Program: Steam Generator Integrity Assessment Guidelines, Revision 5," December 2021

b. EPRI Report 3002007572, "Steam Generator Management Program: Pressurized Water Reactor Steam Generator Examination Guidelines: Revision 8", June 2016 (Includes Interim Guidance SGMP-19-01 incorporated April 2019 (SGMP-19-01) and September 2021 (SGMP-21-02)

c.

EPRI Report 3002007856, "Steam Generator In-situ Pressure Test Guidelines, Revision 5",

November 2016

d. Report 3002005426, "Steam Generator Management Project: Steam Generator Degradation Specific Management Flaw Handbook, Revision 2", October 2015

e.

EPRI Report 3002010645, "PWR Secondary Water Chemistry Guidelines, Revision 8". September 2017

f.

EPRI Report 3002000505, "PWR Primary Water Chemistry Guidelines: Volume 1 and Volume 2, Revision 7", April 2014

g. EPRI Report 1013706, "Steam Generator Management Program: Pressurized Water Reactor Steam Generator Examination Guidelines, Revision 7"

h. EPRI Report TR-107197-Pl, "Depth Based Structural Analysis Methods for SG Circumferential Indications, Interim Report, December 1997"

3.

Westinghouse Reports

a.

SG-SGMP-10-22, "Palisades Nuclear Plant 1R21 Steam Generator Degradation Assessment",

October 2010

b.

SG-SGMP-10-24, "Palisades Nuclear Plant 1R21 Outage Steam Generator Condition Monitoring Report", October 2010

c.

SG-SGMP-11-1, "Palisades Nuclear Plant Cycle 22 Steam Generator Operational Assessment Report", January 2011

d.

WCAP-16208-P NDE Inspection Length for CE Steam Generator Tubesheet Region Explosive Expansions, October 2004

e.

MRS-TRC-1708, "Bobbin Detection of Wear at Dented Vertical Straps and Diagonal Bars,"

Revision 0, December 2005

4.

Palisades Tube Inspection Reports

a.

EC28228, "Steam Generator Tube Inspection for the 2010 Refueling Outage, 1R21" Page 96

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

b. No ID, "Steam Generator Tube Inspection Report for the 2009 Refueling Outage", TS 5.6.8

c. No ID, "Steam Generator Tube Inspection Report for the 2007 Refueling Outage", TS 5.6.8

d. No ID, "Steam Generator Tube Surveillance Report for the 2006 Refueling Outage", TS 5.6.8

e.

No ID, "Steam Generator Tube Surveillance Report for the 2004 Refueling Outage", TS 5.6.8

f. No ID, "Steam Generator Tube Integrity Assessment 2003 Refueling Outage", TS 5.6.8

g. No ID, "Steam Generator Tube Integrity Assessment 2001 Refueling Outage", TS 5.6.8

h. No ID, "Steam Generator Tube Integrity Assessment for Oct-Nov 1999", TS 5.6.8

1.

EC39067, "Steam Generator Tube Inspection for the 2012 Refueling Outage, 1R22" J.

Entergy Letter PNP 2016-038 from Jeffery A. Hardy to USNRC, "Response to Request for Additional Information - Palisades Nuclear Plant 2015 Steam Generator Tube Inspection Report (CAC No. MF7554)" Dated June 17, 2016

5.

Palisades Specific Documents

a.

Palisades Technical Specification (Administrative Controls), 5.5.8, "Steam Generator (SG)

Program" (Includes Amendment No 225 and 261 to Renewed Facility Operating License No.

DPR-20)

b. Palisades Nuclear Plant Abnormal Operating Procedure AOP-24, Revision 2 "Steam Generator Tube Leak"

c.

Palisades Final Safety Analysis Report (FSAR) Revision 35 "Chapter 4 - Primary Coolant System"

d. Palisades Engineering Assistance Request, EAR-2004-0191 "SG Design Limit for Tube Plugging"

e.

Entergy Letter, "Notification of Deviation from EPRI SGMP: PWR SG Examination Guidelines:

Revision 7," PNP 2012-021, April 5, 2012

6.

Palisades Loose Part Evaluations

a.

Palisades Report EC-25487, "Palisades 1R2 l Steam Generator Potential Loose Parts Evaluation"

b. Palisades Report EC-36775, "Palisades 1R22 Steam Generator Potential Loose Parts Evaluation"

c.

Palisades Report EC-48813, "Palisades 1R23 Steam Generator Potential Loose Parts Evaluation"

7. Framatome Plug and Stabilizer Documents

a.

Framatome Document 51-9206178-000, "50.59 Evaluation for Stabilization of SG Tubes at Palisades (CE 2530)"

b. Framatome Document 08-9175539-001 "Equipment Specification for Mechanical Tube Plugging of CE SG 3/4-inch OD Tubes (applicable to Palisades)"

c.

Framatome Document 51-1177797-012 "0.750 Mechanical Rolled Plug Design Verification Report - Alloy 690"

d. Framatome Document 33-9177192-003 "Stress Report for Mechanical Roll Plug for CE 2530 Alloy 600 RSG Tubes (3/4" OD X 0.042")"

8. Framatome Degradation Assessments Page 97

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

a.

Framatome Document 51-9179646-001 "Steam Generator Degradation Assessment for Palisades 1R22 Inspection, Spring 2012"

b. Framatome Document 51-9198800-001 "Steam Generator Degradation Assessment for Palisades 1R23 Inspection, Spring 2014"

c.

Framatome Document 51-9243395-001 "Steam Generator Degradation Assessment for Palisades 1R24 Inspection, Fall 2015"

d. Framatome Document 51-9267304-000, "Steam Generator Degradation Assessment for Palisades 1R25 Inspection, Spring 2017"

e.

Framatome Document 51-9285559-001, "Steam Generator Degradation Assessment for Palisades 1R26 Inspection, Fall 2018"

f.

Framatome Document 51-9311865-001, "Steam Generator Degradation Assessment for Palisades 1R27 Inspection, Fall 2020"

g. Framatome Document 51-9378492-000, "Steam Generator Degradation Assessment for Palisades 1D28 Defuel Inspection, Fall 2024" and Document Amendment 159-9385366-000 (NOPD update)

9. Framatome Final CMOA Documents

a.

Framatome Document 51-9187110-000, "Palisades Steam Generator Condition Monitoring for 1R22 and Final Operational Assessment for Cycle 23"

b. Framatome Document 51-9223728-000, "Palisades Steam Generator Condition Monitoring for 1R23 and Final Operational Assessment for Cycle 24"

c.

Framatome Document 51-9248748-001, Palisades Steam Generator Condition Monitoring for 1R24 and Final Operational Assessment for Cycle 25"

d. Framatome Document 51-9273700-000, Palisades Steam Generator Condition Monitoring for 1R25 and Final Operational Assessment for Cycle 26"

e.

Framatome Document 51-9294 708-000, Palisades Steam Generator Condition Monitoring for 1R26 and Final Operational Assessment for Cycle 27"

f.

Framatome Document 51-9321652-000, Palisades Steam Generator Condition Monitoring for 1R27 and Final Operational Assessment for Cycle 28"

g. Framatome Document 51-9394013-002, Palisades Steam Generator Operational Assessment for Cycle 29"

10. 1D28 Inspection Documents

a.

Framatome Document 03-9379706-000, "Secondary Side Visual Inspection Plan for Palisades 1D28"

b. Framatome Document 51-9379741-000, "Palisades Unit 1 Steam Generator ECT Inspection Plan

- 1D28-08/24"

c.

Framatome Document 51-9216023-006, "Qualified Eddy Current Techniques for Palisades Unit l"

d. Framatome Document 03-9175728-006, "Palisades Unit 1 Steam Generator Eddy Current Analysis Guidelines"

e. Framatome Document 03-1246524-019, "Instructions for Plug Visual Inspection" Page 98

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

f.

Framatome Document 03-9203864-008, "Steam Generator Channel Head Inspection Per Nuclear Safety Advisory Letter (NSAL) 12-1 Level 3 - Information Use"

g. Framatome Document 03-9020586-008, "Requirements for the Preparation of Automated Eddy Current Data Analysis Programs - Level 3 - Information Use"

h. Framatome Document 51-9391858-001, "In Situ Test Results for Palisades (Spring 2025)"

1.

Framatome Document 51-9388329-001, "Palisades 1D28 Steam Generator De-plugging Report and De-plugging List" J.

Framatome Document 51-9391295-000, "Palisades 1D28 SG Tube De-plug, Sleeve Repair and Eddy Current Implementation and Inspection Plan"

k. Framatome Document 51-9393800-000, "Palisades Steam Generator De-Plugging Activities Performed at 1D28"

l.

Framatome Document 51-9388851-001, "Palisades 1D28 Steam Generator TSP Sleeving Strategy and List"

m. Framatome Document 51-9387854-001, "Palisades Unit 1, 1D28, SG B, Deposit Mapping Study"

n. Framatome Document 51-9387853-001, "Palisades Unit 1, 1D28, SG A, Deposit Mapping Study"

11. EPRI Appendix H Performance Based Database and Appendix I Database. On EPRI Website http://sgmp.epriq.com/

12. EPRI SG Degradation Database (SGDD). On EPRI Website http://sgdd.epri.com/

13. EPRI Software 3002010334 "Model Assisted Probability of Detection Using R (MAPOD-R) Version

2. l ", September 2017

14. Framatome Document 32-5033045-003, "MathCAD Implementation of SG Flaw Handbook Equations for Integrity Assessment"

15. Framatome Document 51-9125055-002 "EPRI Flaw Handbook Calculator Software Validation"

16. Palisades C* Documentation

a.

NRC ADAMS Accession No. ML060480064 "TAC No. MC5084 - Responses to NRC Requests for Additional Information on WCAP-16208-P, Rev. 0, "NDE Inspection Length for CE Steam Generator Tubesheet Region Explosive Expansions" ", January 23, 2006

b. NRC ADAMS Accession No. ML060790216 "St. Lucie Plant, Unit No. 2 - Issuance of Amendment Regarding Depth of Required Tube Inspections and Plugging Criteria Within the Tubesheet Region of The Original Steam Generators (TAC No. MC5084)", April 11, 2006

c.

NRC ADAMS Accession No. ML061560407 "License Amendment Request Regarding Tubesheet Inspection Depth for Steam Generator Tube Inspections", May 30, 2006

d. NRC ADAMS Accession No. ML071420216 "Palisades Nuclear Plant - Issuance of Amendment RE: Tubesheet Inspection Depth for Steam Generator Tube Inspections (TAC No. MD2125)",

May 31, 2007

e.

NRC ADAMS Accession No. ML16075A103 "License Amendment Request - Revision to the Requirements for Steam Generator Tube Inspections and Repair Criteria in the Cold Leg Tube Sheet Region" March 3, 2016

f.

NRC ADAMS Accession No. ML16159A230 "Response to - Palisades Nuclear Plant - Request for Additional Information Regarding the License Amendment Request for Implementation of an Alternate Repair Criterion on the Steam Generator Tubes (CAC No. MF7435)" June 7, 2016 Page 99

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

g. NRC ADAMS Accession No. ML16300A030 "Palisades Nuclear Plant - Issuance Of Amendment Re: Revision To The Requirements For Steam Generator Tube Inspections And Repair Criteria In The Cold Leg Tube Sheet Region (CAC No.MF7435)", Dec 19, 2016

17. EPRI Report 1022830 "Steam Generator Management Program: Investigation of Steam Generator Secondary Side Degradation", September 2011

18. EPRI Report 1020989 "Steam Generator Management Program: Foreign Object Prioritization Strategy for Triangular Pitch Steam Generators", July 2010

19. Secondary Side Inspection Documents

a.

Framatome Document 51-9250448-000, "Palisades UlR24 Secondary Side Final Report"

b. Framatome Document 51-9271822-000, "Secondary Side Visual Inspection Final Report for Entergy, Palisades 1R25"

c.

Framatome Document 51-9292369-000, "Palisades UlR26 Secondary Side Visual Inspection Final Report"

d. Framatome Document 51-9319743-000, "Palisades UlR27 Secondary Side Visual Inspection Final Report"

20. EPRI Report 3002000473, "Steam Generator Management Program: Steam Generator Channel Head Degradation Failure Modes and Effects Analysis" April 2013

21. EPRI NP-7008, "Strain-Rate Damage Model for Alloy 600 in Primary Water," Electric Power Research Institute, Palo Alto, CA (October 1990).

22. Framatome Letter AREVA-12-03816, from Dr. James Begley and Chuck Martin to John Hager, "

Subject:

Responses to NRC letter dated 7-17-2012 regarding the Palisades Appendix I Deviation", Dated December 20,2012

23. Framatome Document 03-9273948-001, "Noise Monitoring Checkout Procedure - Level 3 Information Use

24. Framatome Document 32-9173409-000, "Validation ofMultiFram on Windows 7

25. Framatome Document 32-9313861-000, "Validation of Multi-Cycle Probabilistic Integrity Assessment Software -MultiCircVl"

26. Framatome Document 51-8164574-001, "Evaluation of Steam Generator Tube Outer Diameter Stress Corrosion Results from 1D28 at the Palisades Nuclear Plant" Page 100

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 APPENDIX A:

SGA 1D28 ODSCC AND PWSCC INDICATIONS A.1 SGA ODSCC Indications A.1.1 Axial ODSCC Indications @ TTS Table A-1: SGA Axial ODSCC Indications @ TTS

+Point NDE NDE Structural Maximum Structural SG Row Col Elev Inch 300 kHz Depth Axial Length Depth Amplitude Length (o/oTW)

(Vpp)

(o/oTW)

(in.)

(Note 1)

A 8

57 TSH

-0.19 0.25 44.0 0.08 A

32 15 TSH

-0.03 0.38 50.9 0.13 A

32 115 TSH 1.08 0.83 63.8 0.18 0.09 56.9 A

97 102 TSH 0.17 0.35 49.5 0.20 A

82 97 TSH 0.43 0.87 64.6 0.21 A

79 94 TSH 0.48 0.4 51.7 0.21 A

38 51 TSH 0

0.88 64.8 0.23 A

29 48 TSH 0.83 0.49 55.1 0.23 A

75 90 TSH 0.91 0.6 58.4 0.24 A

68 97 TSH 0.45 0.95 66.0 0.27 0.16 57.6 A

80 85 TSH 0.43 0.68 60.5 0.27 A

74 99 TSH 0.67 0.37 50.4 0.29 A

73 98 TSH 0.59 0.66 60.0 0.32 A

77 96 TSH 0.56 0.63 59.3 0.32 A

21 48 TSH 0.52 0.29 46.4 0.34 A

32 115 TSH 0.57 4.29 91.0 0.45 0.3 82.1 A

30 49 TSH 0.92 0.38 50.9 0.46 Notes:

1. The NOE maximum depth values were calculated using the Appendix I regression techniques (o/oTW as function of NOE voltage) and then reduced by 11 o/oTW in accordance with Reference [5.e].

Both the NOE maximum depth and structural depth values, shown in this table, reflect the 11 o/oTW reduction.

Page A-1

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 A.1.2 SGA Axial ODSCC Indications @ TSP Table A-2: SGA Axial ODSCC Indications @ TSP

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (in.)

(o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 1

156 02H 0.83 0.31 43.50 0.37 A

1 156 02H 0.93 0.19 33.26 0.16 A

2 33 DBC 0.51 0.34 45.43 0.61 A

2 53 03H 0.93 0.38 47.75 0.59 A

3 114 02H 0.83 0.36 46.62 0.43 A

3 114 02H 0.8 0.18 32.13 0.40 A

4 15 03H 0.21 0.36 46.62 1.12 A

4 25 04H 0.27 0.53 54.71 0.77 0.26 40.6 A

4 33 04H 0.69 0.36 46.62 0.35 A

4 55 01H 0.67 0.47 52.20 0.96 A

4 107 04H

-0.16 0.24 38.15 0.29 A

4 107 04H 0.59 0.23 37.26 0.45 A

4 113 01H 0.85 0.23 37.26 0.40 A

4 117 01H 0.75 0.31 43.50 0.72 A

4 145 05H

-0.27 0.67 59.61 0.96 0.61 52.6 A

4 145 05C

-0.42 0.44 50.82 0.96 A

4 145 03H 0.24 0.28 41.37 0.24 A

4 145 04C 0.93 0.28 41.37 0.42 A

4 145 05H 0.69 0.28 41.37 0.88 A

4 145 05C

-0.78 0.19 33.26 0.96 A

4 147 05C

-0.84 0.17 30.94 0.36 A

4 147 05H 0.03 0.16 29.67 0.67 A

4 155 05H 0.69 0.19 33.26 0.21 A

5 110 03H

-0.19 0.27 40.61 0.43 A

7 56 01H

-0.51 0.41 49.34 0.85 A

7 58 01H

-0.29 0.51 53.90 1.95 0.72 42.5 A

7 58 01H 0.96 0.25 39.00 0.27 A

7 106 03H

-0.8 0.38 47.75 0.29 A

7 112 04H 1.17 0.28 41.37 0.45 A

7 118 01H

-0.11 0.31 43.50 1.47 A

7 118 03H

-0.05 0.30 42.81 1.07 A

7 118 03H 0.69 0.16 29.67 0.16 A

7 122 01H 0.75 0.31 43.50 0.45 A

7 126 04H 0.75 0.17 30.94 0.32 A

7 126 04H

-0.53 0.14 26.88 0.27 Page A-2

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 7

136 04H 0.75 0.40 48.82 0.43 A

7 136 05H 0.88 0.36 46.62 0.16 A

7 136 DBH

-0.77 0.18 32.13 0.16 A

7 136 DBH 0.83 0.17 30.94 0.16 A

7 136 04H 0.72 0.17 30.94 0.85 A

7 148 05H

-0.4 0.27 40.61 0.37 A

7 148 02H 0.56 0.21 35.35 1.31 A

8 13 02H 0.51 0.43 50.34 0.29 A

8 57 01H

-0.83 0.38 47.75 0.75 A

8 107 03H

-0.96 0.27 40.61 0.29 A

8 107 03H 0.59 0.12 23.65 0.51 A

8 109 03H

-0.19 0.47 52.20 1.60 0.64 46.5 A

8 109 01H 0.61 0.42 49.84 0.77 A

8 109 04H 0.72 0.41 49.34 0.56 A

8 109 03H

-0.93 0.13 25.33 0.99 A

8 113 03H

-1.04 0.43 50.34 0.69 A

8 113 04H

-0.48 0.24 38.15 0.48 A

8 117 01H 0.03 0.44 50.82 1.76 0.91 44.6 A

8 121 02H

-0.56 0.40 48.82 0.40 A

9 130 03H 0.72 0.36 46.62 0.32 A

9 130 04H 0.61 0.33 44.80 0.45 A

10 19 03H 0.61 0.63 58.32 1.39 0.48 51.8 A

10 21 05H 1.23 0.29 42.10 0.48 A

10 21 05C 0.9 0.23 37.26 0.36 A

10 33 05H 0.88 0.36 46.62 0.24 A

10 53 01H 0.89 0.49 53.07 1.92 1.6 45.1 A

10 109 05H 0.75 0.16 29.67 0.27 A

10 117 01H 0.88 0.42 49.84 0.59 A

10 117 03H 0.75 0.41 49.34 0.21 A

10 117 02H

-0.11 0.34 45.43 0.35 A

10 117 03H 0.67 0.15 28.32 0.27 A

10 125 01H 0.91 0.31 43.50 0.48 A

10 129 03H 0.56 0.42 49.84 0.59 A

10 131 04H

-0.16 0.19 33.26 0.27 A

10 133 02H

-0.13 0.17 30.94 0.43 A

10 145 05H 0.43 0.18 32.13 0.29 A

10 145 04H 0.4 0.13 25.33 1.07 Page A-3

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 10 153 01H

-0.24 0.23 37.26 0.72 A

10 153 01H 0.51 0.18 32.13 0.32 A

11 12 05H

-0.91 0.21 35.35 0.24 A

11 40 01H

-0.16 0.25 39.00 0.24 A

11 50 01H 0.8 0.36 46.62 0.35 A

11 106 03H

-0.35 0.52 54.31 1.39 1.12 47.8 A

11 106 03H 0.72 0.48 52.64 1.97 0.9 46.7 A

11 106 05H 0.93 0.38 47.75 0.64 A

11 106 05H 0.83 0.33 44.80 0.29 A

11 106 04H 0.93 0.19 33.26 0.35 A

11 106 04H

-0.96 0.09 17.64 0.19 A

11 114 01H 0.67 0.60 57.30 1.47 0.21 50.4 A

11 114 02H

-0.29 0.53 54.71 0.99 0.43 38.4 A

11 114 05H 0.83 0.48 52.64 0.37 A

11 114 02H 0.75 0.45 51.29 0.53 A

11 114 03H

-0.05 0.25 39.00 0.96 A

11 114 03H 0.64 0.18 32.13 0.24 A

11 116 01H 0.91 0.24 38.15 0.32 A

11 118 03H 0.35 0.70 60.52 0.32 0.21 52.1 A

11 118 03H

-0.64 0.26 39.82 0.21 A

11 120 01H 0.61 0.35 46.03 0.48 A

11 120 01H 0.11 0.33 44.80 1.15 A

11 134 01H 0.91 0.15 28.32 0.37 A

11 136 04H 0.83 0.15 28.32 0.27 A

11 144 05H

-0.48 0.32 44.16 0.48 A

11 144 01H

-0.83 0.22 36.33 0.75 A

11 144 02H

-0.83 0.19 33.26 0.16 A

11 146 02H 0.4 0.23 37.26 0.19 A

12 19 03H

-0.29 0.43 50.34 0.56 A

12 111 03H 0.45 0.48 52.64 0.85 A

12 113 02H

-0.32 0.63 58.32 0.64 0.32 49.5 A

12 113 01H 0.75 0.28 41.37 0.61 A

12 127 DBH

-1.12 0.32 44.16 0.96 A

12 131 05H 0.8 0.78 62.78 0.40 0.32 54.6 A

12 131 03H 0.75 0.54 55.10 0.69 0.53 46.3 A

12 131 04H

-0.32 0.40 48.82 0.91 A

12 131 01H 0.03 0.38 47.75 0.51 Page A-4

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 12 131 05H 0.61 0.30 42.81 0.93 A

12 131 02H 0.85 0.16 29.67 0.43 A

12 139 03H 0.93 0.40 48.82 0.29 A

12 139 01H 0.05 0.22 36.33 1.55 A

12 139 05H

-0.8 0.14 26.88 0.51 A

12 143 05H 0.25 0.29 42.10 0.64 A

12 143 05H

-0.22 0.23 37.26 0.16 A

12 155 01H

-0.64 0.46 51.75 0.83 A

13 16 05H 0.77 0.45 51.29 0.32 A

13 36 04H

-0.43 0.30 42.81 1.55 A

13 58 03H

-0.75 0.42 49.84 0.51 A

13 58 01H

-0.85 0.16 29.67 0.37 A

13 124 02H 0.88 0.24 38.15 0.16 A

13 136 05H 0.32 0.19 33.26 0.27 A

13 140 04H 0.85 0.33 44.80 0.64 A

14 5

03H

-0.72 0.22 36.33 0.19 A

14 57 04H

-0.05 0.59 56.95 0.56 0.43 51.2 A

14 57 04H

-0.85 0.11 21.84 0.21 A

14 107 03H 0.91 0.43 50.34 0.32 A

14 117 01H 0.91 0.24 38.15 1.07 A

14 121 02H

-0.24 0.19 33.26 0.51 A

14 121 02H

-0.19 0.13 25.33 0.35 A

14 133 04H

-0.93 0.24 38.15 0.24 A

14 139 03H 0.05 0.39 48.29 1.47 A

14 139 05H 0.43 0.31 43.50 0.40 A

15 48 01H

-0.51 0.25 39.00 1.01 A

15 50 02H

-0.85 0.16 29.67 0.16 A

15 104 03H

-0.69 0.24 38.15 0.53 A

15 110 01H

-0.16 0.19 33.26 0.32 A

15 112 01H 0.75 0.51 53.90 0.56 A

15 112 04H 0.24 0.24 38.15 0.27 A

15 116 03H 0.91 0.46 51.75 0.40 A

15 116 02H 0.51 0.24 38.15 0.21 A

15 116 04H 1.07 0.24 38.15 0.21 A

15 116 01H

-0.19 0.20 34.33 0.40 A

15 116 02H 0.88 0.17 30.94 0.21 A

15 122 01H 0.8 2.26 85.02 0.77 0.27 75.3 Page A-5

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 15 122 01H 0.48 0.24 38.15 0.16 A

15 124 01H 0.61 0.39 48.29 0.99 A

15 128 04H 0.61 0.30 42.81 1.23 A

15 134 04H 0.03 0.16 29.67 1.01 A

15 140 04H

-0.64 0.45 51.29 1.20 A

15 146 05H 0.59 0.56 55.86 0.99 0.35 49.5 A

15 146 02H 0.93 0.14 26.88 0.35 A

15 152 02H 0.35 0.34 45.43 0.32 A

15 158 02H 0.24 0.20 34.33 0.21 A

16 19 04H 0.75 0.63 58.32 1.20 0.4 51.9 A

16 59 05H 0

0.70 60.52 0.75 0.61 54.4 A

16 109 01H 0.72 0.19 33.26 0.40 A

16 109 01H

-0.4 0.10 19.84 0.13 A

16 113 02H

-0.48 0.48 52.64 0.91 A

16 113 03H

-0.16 0.26 39.82 0.83 A

16 113 01H 0.83 0.22 36.33 0.37 A

16 115 01H

-0.24 0.31 43.50 0.43 A

16 129 04H

-0.8 0.32 44.16 0.99 A

16 129 03H 0.8 0.23 37.26 0.45 A

16 163 DBH

-1.71 0.21 35.35 0.29 A

17 44 01H 0.83 0.29 42.10 0.40 A

17 60 04H

-0.45 0.35 46.03 0.48 A

17 106 02H 0.75 0.18 32.13 0.37 A

17 110 01H 0.75 0.29 42.10 0.32 A

17 112 01H

-0.37 0.40 48.82 0.77 A

17 112 01H

-0.51 0.17 30.94 1.73 A

17 114 01H 0.59 0.30 42.81 0.21 A

17 118 02H 0.24 0.45 51.29 1.28 A

17 120 01H 0.67 0.20 34.33 0.29 A

17 120 04H 0.11 0.16 29.67 0.32 A

17 126 01H 0.91 0.19 33.26 0.45 A

17 130 05H 0.96 0.18 32.13 0.16 A

17 132 02H 0.88 0.28 41.37 0.40 A

17 148 04H 0.75 0.36 46.62 0.80 A

17 150 02H 0.72 0.18 32.13 0.21 A

18 37 01H

-0.75 0.26 39.82 1.39 A

18 47 02H 0.85 0.19 33.26 0.35 Page A-6

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 18 49 04H

-0.61 0.29 42.10 0.37 A

18 105 02H 0.91 0.23 37.26 0.59 A

18 105 02H

-0.75 0.11 21.84 0.24 A

18 117 01H 0.67 0.17 30.94 0.29 A

18 121 03H 0.56 0.20 34.33 0.51 A

18 123 01H 0.72 0.32 44.16 0.21 A

18 129 04H

-0.88 0.57 56.23 0.75 0.35 43.8 A

18 129 03H 0.24 0.42 49.84 1.04 A

18 129 02H 0.45 0.38 47.75 0.72 A

18 129 03H 0.64 0.34 45.43 0.80 A

18 129 02H

-0.29 0.23 37.26 0.75 A

18 135 02H

-0.27 0.14 26.88 0.40 A

18 145 04H

-0.08 0.24 38.15 0.24 A

19 44 01H

-0.24 0.25 39.00 0.48 A

19 46 01H

-0.35 0.29 42.10 1.36 A

19 60 05H

-0.21 0.17 30.94 0.48 A

19 62 03H

-0.85 0.24 38.15 0.27 A

19 104 04H 0.93 0.12 23.65 0.35 A

19 106 02H 0.88 0.61 57.65 0.59 0.27 48 A

19 106 02H 0.48 0.29 42.10 0.93 A

19 108 05H

-0.51 0.18 32.13 0.37 A

19 112 01H 0.35 0.34 45.43 1.01 A

19 114 01H 0.61 0.42 49.84 0.67 A

19 114 01H

-0.48 0.37 47.19 0.88 A

19 114 04H 0.56 0.17 30.94 0.56 A

19 120 02H

-0.11 0.30 42.81 0.45 A

19 122 04H 0.8 0.15 28.32 0.19 A

19 126 01H

-0.56 0.23 37.26 0.27 A

19 128 03H 0.77 0.22 36.33 0.40 A

19 138 05H 0.85 0.14 26.88 0.21 A

19 148 02H 0.75 0.54 55.10 0.48 A

20 15 02H 0.8 0.18 32.13 0.29 A

20 47 01H 0.85 0.44 50.82 0.43 A

20 113 05H 1.01 0.24 38.15 0.21 A

20 113 05H 0.85 0.23 37.26 0.27 A

21 36 05H

-0.21 0.19 33.26 0.16 A

21 42 04H 0.88 0.38 47.75 0.27 Page A-7

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 21 56 04H 0.88 0.22 36.33 0.40 A

21 102 04H 0.59 0.29 42.10 0.59 A

21 102 01H 0.64 0.27 40.61 0.88 A

21 102 02H 0.85 0.19 33.26 0.43 A

21 104 04H 0.91 0.46 51.75 0.77 A

21 104 02H 0.64 0.38 47.75 0.80 A

21 104 04H

-0.35 0.23 37.26 0.99 A

21 104 03H

-0.83 0.19 33.26 0.24 A

21 104 02H 0.61 0.17 30.94 0.45 A

21 106 04H 0.4 0.44 50.82 0.56 A

21 110 02H 0.53 0.81 63.57 0.83 0.43 52.9 A

21 110 02H

-0.13 0.24 38.15 0.35 A

21 118 01H 0.67 0.55 55.48 0.69 0.29 46.8 A

21 118 01H 0.35 0.40 48.82 0.93 A

21 128 04H 0.83 0.35 46.03 0.48 A

21 156 04H 0.75 0.39 48.29 0.45 A

21 158 VS4

-0.16 0.22 36.33 0.19 A

21 158 04H 0.69 0.18 32.13 0.37 A

21 162 DBH

-1.89 0.18 32.13 0.29 A

22 37 04H

-0.64 0.44 50.82 0.43 A

22 61 04H

-0.45 0.31 43.50 0.85 A

22 61 04H

-0.45 0.28 41.37 0.83 A

22 61 03H 0.4 0.19 33.26 0.40 A

22 105 02H

-0.16 0.24 38.15 0.45 A

22 105 02H 0.4 0.15 28.32 0.64 A

22 107 01H 0.56 0.45 51.29 0.75 A

22 115 05H 0.83 0.30 42.81 0.19 A

23 46 03C 0.75 0.27 40.61 0.63 A

23 50 01H 0.77 0.73 61.40 1.17 0.7 52.9 A

23 58 04H

-0.91 0.22 36.33 0.45 A

23 60 05H

-0.21 0.68 59.92 0.83 0.37 43.6 A

23 60 04H

-0.59 0.51 53.90 0.69 A

23 60 05H

-0.77 0.31 43.50 0.16 A

23 60 05H 0.37 0.29 42.10 0.69 A

23 60 05H

-0.27 0.20 34.33 0.72 A

23 62 05H 0.48 0.15 28.32 0.99 A

23 116 01H 0.67 0.34 45.43 0.56 Page A-8

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 23 122 01H

-0.27 0.18 32.13 0.59 A

23 130 05H 0.56 0.58 56.59 0.21 A

23 132 02H 0.53 0.25 39.00 0.16 A

23 150 02H 0.83 0.26 39.82 0.27 A

24 39 VS4 0.16 0.35 46.03 0.40 A

24 47 01H 0.45 0.39 48.29 0.61 A

24 107 05H

-0.27 0.22 36.33 0.67 A

24 107 04H

-0.11 0.12 23.65 0.19 A

24 111 05H 0.13 0.30 42.81 0.51 A

24 125 04C 0.9 0.30 42.81 0.42 A

24 125 02H 0.45 0.26 39.82 0.27 A

24 125 03H 0.88 0.21 35.35 0.35 A

24 125 02H

-0.29 0.20 34.33 0.48 A

24 133 01H 0.59 0.59 56.95 0.67 0.29 46.2 A

24 137 05H 0.8 0.18 32.13 0.16 A

24 159 02H 0.8 0.26 39.82 0.35 A

25 62 04H 0.99 0.16 29.67 0.29 A

25 102 04H 0.93 0.24 38.15 0.24 A

25 102 04H

-0.88 0.24 38.15 0.51 A

25 102 03H 0.35 0.22 36.33 0.29 A

25 108 04H

-0.59 0.38 47.75 0.67 A

25 108 04H 0.61 0.21 35.35 0.72 A

25 120 04H

-0.43 0.52 54.31 1.71 0.53 48.5 A

25 120 VS4 0.79 0.33 44.80 0.44 A

25 120 02H 0.8 0.20 34.33 0.27 A

25 120 04H 0.11 0.17 30.94 1.17 A

25 124 04H 0.13 0.21 35.35 1.52 A

25 128 02H 0.4 0.26 39.82 1.39 A

25 140 01H 0.8 0.48 52.64 0.64 A

25 146 04H 0.91 0.13 25.33 0.19 A

25 154 02H 0.8 0.16 29.67 0.19 A

25 156 DBH 0.96 0.18 32.13 0.96 A

26 55 05H 0.91 0.50 53.49 0.21 A

26 55 03C

-0.57 0.33 44.80 0.51 A

26 63 04H

-0.05 0.30 42.81 0.85 A

26 111 04H

-0.24 0.21 35.35 0.29 Page A-9

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 26 115 04H

-0.53 0.70 60.52 0.88 0.58 52.1 A

26 115 04H 0.19 0.27 40.61 0.45 A

26 117 01H 0.83 1.18 71.44 0.83 0.56 56.5 A

26 139 01H 0.72 0.48 52.64 0.64 A

26 157 04H

-0.75 0.21 35.35 0.32 A

26 157 04H

-0.4 0.18 32.13 0.11 A

27 46 01H

-0.8 0.19 33.26 0.37 A

27 56 04H 0.8 0.55 55.48 0.51 A

27 56 05H

-0.85 0.22 36.33 0.16 A

27 56 05H

-0.11 0.17 30.94 0.16 A

27 56 05H 0.91 0.13 25.33 0.51 A

27 60 04H

-0.88 0.32 44.16 0.21 A

27 60 05H

-0.24 0.25 39.00 0.21 A

27 62 04H

-0.08 0.51 53.90 1.71 0.48 49.3 A

27 62 03H 0.19 0.32 44.16 0.27 A

27 104 02H 0.75 0.45 51.29 0.45 A

27 104 03H 0.13 0.28 41.37 1.31 A

27 108 04H

-0.13 0.53 54.71 1.39 0.85 46.5 A

27 108 05H

-0.93 0.15 28.32 0.24 A

27 110 04H 0.05 0.46 51.75 0.32 A

27 110 02H 0.45 0.43 50.34 0.99 A

27 114 02H

-0.43 0.34 45.43 0.45 A

27 114 02H 0.96 0.14 26.88 0.35 A

27 124 VS4 0.65 0.40 48.82 0.58 A

27 134 02H 0.16 0.23 37.26 0.29 A

27 134 05H

-0.37 0.20 34.33 0.19 A

27 140 04H 0.67 0.15 28.32 0.35 A

27 148 04H 0.61 0.22 36.33 0.45 A

27 148 04H 0.93 0.10 19.84 0.16 A

27 152 02H 0.45 0.20 34.33 0.43 A

27 156 DBH 0.21 0.28 41.37 1.63 A

27 156 04H 0.77 0.27 40.61 0.45 A

27 158 04H 0.61 0.41 49.34 0.69 A

27 158 04H 0.83 0.25 39.00 0.53 A

28 55 01H

-0.45 0.21 35.35 0.67 A

28 55 01H 0.77 0.15 28.32 0.21 A

28 63 01H

-0.67 0.27 40.61 0.21 Page A-10

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 28 105 01H 0.93 0.20 34.33 0.37 A

28 105 02H

-0.48 0.13 25.33 0.80 A

28 107 05H 0.48 0.75 61.97 0.91 0.64 51.9 A

28 121 01H 0.88 0.17 30.94 0.16 A

29 28 01H 0.45 0.27 40.61 0.64 A

29 52 01H 0.77 0.27 40.61 0.32 A

29 102 02H 0.53 0.51 53.90 1.49 0.48 48.7 A

29 102 03H 0.93 0.22 36.33 0.19 A

29 102 04H

-0.69 0.14 26.88 0.48 A

29 102 03H

-0.96 0.11 21.84 0.16 A

29 104 04H

-0.21 0.49 53.07 1.36 0.37 49.7 A

29 104 01H 0.56 0.26 39.82 0.93 A

29 104 02H

-0.61 0.21 35.35 0.51 A

29 104 02H 0.85 0.10 19.84 0.56 A

29 104 04H 0.05 0.09 17.64 1.33 A

29 106 02H 0.85 0.25 39.00 0.40 A

29 106 02H

-0.56 0.19 33.26 0.27 A

29 130 02H 0.91 0.24 38.15 1.39 A

29 152 02H 0.91 0.25 39.00 0.72 A

29 158 VS4

-0.07 0.22 36.33 0.16 A

30 107 04H

-0.75 0.19 33.26 0.83 A

31 46 05H 0.64 0.32 44.16 0.27 A

31 46 05H 0.72 0.31 43.50 0.59 A

31 54 02H 1.01 0.31 43.50 0.19 A

31 54 05H 0

0.24 38.15 0.96 A

31 58 05H 0.72 1.37 74.56 1.04 0.48 69.3 A

31 58 05H 0.61 0.78 62.78 1.68 0.64 50.1 A

31 58 05C 0.9 0.26 39.82 1.17 A

31 58 05C 0.12 0.22 36.33 2.10 A

32 13 03C 0.9 0.26 39.82 0.30 A

32 55 05H 0.67 0.59 56.95 1.20 0.56 52.5 A

32 103 02H 0.83 0.39 48.29 0.93 A

32 103 01H

-0.77 0.23 37.26 0.43 A

32 103 04H

-0.21 0.21 35.35 0.24 A

32 105 02H 0.24 0.45 51.29 1.41 A

32 105 04H

-0.69 0.24 38.15 0.45 A

32 107 02H

-0.48 0.45 51.29 1.04 Page A-11

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 32 107 01H

-0.35 0.40 48.82 1.25 A

32 107 02H 0.77 0.32 44.16 0.45 A

32 113 01H 0.53 0.36 46.62 0.83 A

32 115 01H 0.77 0.32 44.16 0.40 A

32 119 05H

-0.05 0.21 35.35 0.29 A

32 155 02H 0.91 0.17 30.94 0.32 A

33 16 02H

-0.91 0.21 35.35 0.21 A

33 26 01H 0.67 0.28 41.37 0.88 A

33 36 03C 0.81 0.30 42.81 0.42 A

33 36 01H

-0.29 0.26 39.82 0.37 A

33 54 04H 1.31 0.49 53.07 0.40 A

33 56 05H 0.99 0.37 47.19 0.35 A

33 56 01H

-0.85 0.33 44.80 0.40 A

33 56 01H 0.88 0.20 34.33 0.27 A

33 58 01H 0.88 0.36 46.62 0.19 A

33 58 01H 0.48 0.33 44.80 0.56 A

33 58 01H 0.88 0.30 42.81 0.21 A

33 60 04H 0.64 0.57 56.23 0.27 A

33 60 05H 1.15 0.17 30.94 0.21 A

33 106 03H 0.75 0.56 55.86 0.61 0.45 45.9 A

33 106 02H

-0.61 0.39 48.29 0.75 A

33 106 04H 0.19 0.30 42.81 0.51 A

33 108 01H

-0.4 0.34 45.43 0.72 A

33 110 01H 0.69 0.35 46.03 0.53 A

33 112 03H 0.64 0.41 49.34 0.45 A

33 112 05H 0.72 0.25 39.00 0.27 A

33 112 01H 0.56 0.18 32.13 0.93 A

33 114 05H

-0.48 0.24 38.15 0.51 A

33 136 03C

-0.12 0.29 42.10 0.18 A

33 144 04H 0.85 0.12 23.65 0.24 A

33 146 02H 0.88 0.45 51.29 0.40 A

34 23 02H

-0.88 0.30 42.81 0.29 A

34 59 01H

-0.67 0.78 62.78 0.43 0.21 55.4 A

35 58 02H 0.91 0.11 21.84 0.32 A

35 102 04H 0.29 0.23 37.26 0.51 A

35 102 04H

-0.37 0.22 36.33 0.69 A

35 104 04H

-0.11 0.27 40.61 0.53 Page A-12

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 35 104 05H

-0.64 0.14 26.88 0.35 A

35 106 02H

-0.83 0.19 33.26 0.77 A

35 106 02H 0.77 0.18 32.13 0.69 A

35 150 04H 0.83 0.13 25.33 0.13 A

36 43 04H

-0.4 0.21 35.35 0.40 A

36 47 05H

-0.83 0.21 35.35 0.27 A

36 59 01H 0.08 0.35 46.03 0.53 A

36 103 02H

-0.37 0.26 39.82 1.39 A

36 105 02H

-0.48 0.39 48.29 0.53 A

36 105 02H

-0.77 0.31 43.50 0.85 A

36 111 02H 0.85 0.27 40.61 0.69 A

37 106 02H

-0.24 0.34 45.43 0.21 A

37 106 04H 0.8 0.19 33.26 0.21 A

37 116 02H

-0.77 0.27 40.61 0.64 A

37 126 03C 0.87 0.53 54.71 0.27 A

38 57 01H

-0.93 0.21 35.35 0.40 A

38 109 01H

-0.21 0.40 48.82 0.56 A

38 109 02H 0.8 0.30 42.81 0.61 A

38 109 03H

-0.19 0.16 29.67 0.37 A

38 109 02H

-0.03 0.14 26.88 0.96 A

38 137 02H

-0.29 0.18 32.13 0.24 A

39 60 01H 0.08 0.29 42.10 0.75 A

39 108 02H 0.45 0.31 43.50 1.31 A

39 110 03H

-0.19 0.18 32.13 0.16 A

39 110 01H 0.93 0.18 32.13 0.32 A

39 120 01H

-0.11 0.27 40.61 0.21 A

39 122 02H 0.64 0.52 54.31 0.51 A

39 122 04H 0.83 0.24 38.15 0.19 A

39 122 01H 0.21 0.20 34.33 0.24 A

40 111 05H

-0.32 0.45 51.29 0.64 A

40 111 04H

-0.32 0.24 38.15 0.61 A

40 129 01H 0.69 0.31 43.50 0.69 A

41 108 04H 0.8 0.14 26.88 0.16 A

43 112 02H 0.48 0.44 50.82 0.21 A

43 112 02H 0.88 0.27 40.61 0.37 A

44 59 01H

-0.69 0.14 26.88 0.37 A

44 99 02H

-0.77 0.39 48.29 0.37 Page A-13

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 44 99 02H 0.69 0.32 44.16 0.75 A

44 105 02H

-0.83 0.46 51.75 0.19 A

44 105 03H 0.53 0.34 45.43 1.20 A

45 58 01H

-0.8 0.16 29.67 0.24 A

45 104 02H 0.77 0.18 32.13 0.19 A

45 158 02H 0.77 0.19 33.26 0.16 A

46 35 01H 0.24 0.30 42.81 0.93 A

46 59 01H 0.75 0.24 38.15 1.52 A

46 67 01H 0.88 0.22 36.33 0.35 A

46 67 04H 0.96 0.20 34.33 0.32 A

46 111 04H

-0.43 0.28 41.37 0.91 A

46 111 02H

-0.16 0.18 32.13 0.91 A

46 121 05H

-0.35 0.27 40.61 0.51 A

46 121 02H 0.91 0.21 35.35 0.56 A

46 125 02H 0.85 0.26 39.82 0.75 A

46 145 01H

-0.45 0.35 46.03 0.75 A

46 145 03H 0.64 0.23 37.26 0.40 A

47 48 01H 0.75 0.21 35.35 0.48 A

47 62 01H

-0.91 0.35 46.03 0.21 A

47 108 04H 0.59 0.51 53.90 0.88 0.45 44.8 A

47 108 02H 0.51 0.48 52.64 0.85 A

47 108 02H

-0.13 0.27 40.61 0.32 A

47 126 04H 0.91 0.17 30.94 0.51 A

48 45 01H 0.77 0.23 37.26 0.69 A

48 69 01H 0.83 0.18 32.13 0.21 A

48 105 02H 0.61 0.32 44.16 1.97 A

48 113 01H 0.91 0.33 44.80 0.48 A

49 100 01H 0.45 0.27 40.61 0.53 A

49 102 02H

-0.11 0.46 51.75 0.48 A

49 108 01H 0.59 0.21 35.35 0.35 A

49 110 03H

-0.91 0.22 36.33 0.35 A

50 99 01H 0.24 0.35 46.03 0.29 A

50 99 02H

-0.96 0.23 37.26 0.61 A

50 99 01H 0.53 0.19 33.26 0.61 A

50 101 01H 0.91 0.16 29.67 0.16 A

50 113 02H 0.88 0.27 40.61 0.37 A

52 97 02H 0

0.55 55.48 0.83 0.32 46.2 Page A-14

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 56 85 03H 0.59 0.22 36.33 0.69 A

56 111 02H 0.85 0.18 32.13 0.56 A

57 52 01H 0.64 0.50 53.49 0.77 A

57 68 01H 0.37 0.46 51.75 0.51 A

57 68 01H 0.69 0.29 42.10 0.69 A

57 90 02H 0.51 0.60 57.30 0.61 0.37 49.6 A

57 112 02H 0.72 0.20 34.33 0.51 A

57 134 02H 0.77 0.32 44.16 0.29 A

58 69 01H 0.8 0.40 48.82 0.56 A

58 101 01H

-0.75 0.17 30.94 0.27 A

60 91 02H

-0.53 0.21 35.35 0.56 A

60 93 02H

-0.64 0.34 45.43 0.64 A

60 95 02H 0.91 0.32 44.16 0.48 A

60 97 01H

-0.56 0.74 61.68 0.93 0.59 52.5 A

61 106 02H 0.51 0.12 23.65 0.19 A

61 110 02H

-0.4 0.59 56.95 0.64 0.38 46.2 A

61 118 01H

-0.59 0.20 34.33 0.16 A

63 38 01H

-0.16 0.22 36.33 0.67 A

63 48 01H 0.85 0.31 43.50 1.81 A

63 86 02H 0.59 0.59 56.95 0.37 A

63 90 02H 0.75 0.13 25.33 0.24 A

64 93 02H

-1.17 0.23 37.26 0.53 A

64 93 02H

-1.07 0.21 35.35 0.96 A

64 95 01H

-0.72 0.28 41.37 0.59 A

65 114 02H 0.11 0.10 19.84 0.19 A

66 77 01H 0.72 0.36 46.62 0.16 A

66 95 01H 0.85 0.21 35.35 0.29 A

67 88 01H

-0.85 0.29 42.10 0.19 A

67 96 01H

-0.19 0.33 44.80 0.99 A

68 83 01H 0.75 0.48 52.64 0.45 A

68 83 01H 0.61 0.45 51.29 0.45 A

68 83 01H

-0.43 0.21 35.35 0.56 A

68 89 01H

-0.77 0.90 65.78 1.79 0.75 56.2 A

68 89 03H

-0.43 0.83 64.08 0.35 0.26 54.2 A

68 95 01H

-0.72 0.18 32.13 0.64 A

68 97 01H 0.75 0.41 49.34 0.53 A

68 117 01H 0.61 0.59 56.95 0.77 0.67 45.4 Page A-15

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 69 62 02H 0.75 0.49 53.07 0.24 A

69 78 01H

-0.77 0.60 57.30 0.45 0.19 47.5 A

69 78 02H 0.83 0.36 46.62 0.21 A

69 86 02H 0.37 0.17 30.94 0.27 A

69 88 02H 0.64 0.32 44.16 0.40 A

69 88 01H 0.64 0.15 28.32 0.16 A

69 90 01H

-0.21 0.45 51.29 1.07 A

69 90 02H 0.75 0.18 32.13 0.16 A

69 92 02H 0.91 0.16 29.67 0.32 A

69 94 02H 0.21 0.54 55.10 0.75 0.64 42.6 A

69 94 01H 0.91 0.22 36.33 0.32 A

70 15 03H 0.88 0.15 28.32 0.16 A

70 23 01H 0.4 0.21 35.35 1.41 A

70 87 01H 0.64 0.45 51.29 0.69 A

70 87 01H 0.75 0.26 39.82 0.40 A

70 91 01H

-0.51 1.04 68.80 0.72 0.48 63 A

70 93 01H 0.83 0.20 34.33 0.29 A

70 93 01H

-0.67 0.20 34.33 0.69 A

70 111 02H 0.93 0.22 36.33 0.21 A

70 111 01H 0.24 0.16 29.67 0.91 A

70 111 01H

-0.11 0.09 17.64 0.32 A

70 117 04H

-0.56 0.23 37.26 0.53 A

70 117 02H

-0.91 0.21 35.35 0.16 A

70 131 03H 0.8 0.36 46.62 1.01 A

70 131 05H 0.96 0.17 30.94 0.27 A

70 153 01H 0.91 0.12 23.65 0.13 A

71 48 02H 0.85 0.30 42.81 0.19 A

71 58 04H 0.77 0.23 37.26 0.16 A

71 92 02H 0.77 0.37 47.19 0.64 A

71 92 02H 0.27 0.25 39.00 0.40 A

71 102 01H 0.72 0.42 49.84 0.45 A

71 102 01H 0.35 0.19 33.26 0.32 A

71 110 01H 0.21 0.16 29.67 0.33 A

71 122 04H 0.91 0.19 33.26 0.37 A

72 57 01H

-0.88 0.18 32.13 0.24 A

72 83 01H

-0.67 0.30 42.81 0.64 A

72 85 02H

-0.13 0.54 55.10 1.49 0.7 43.6 Page A-16

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 72 89 01H 0.8 0.37 47.19 0.64 A

72 91 01H 0.8 0.26 39.82 0.37 A

73 58 02H

-0.29 0.35 46.03 0.53 A

73 72 01H 0.85 0.36 46.62 0.56 A

73 78 01H

-0.69 0.57 56.23 0.35 A

73 80 01H

-0.43 0.53 54.71 0.77 0.45 47.7 A

73 86 01H 0.88 0.34 45.43 0.64 A

73 86 01H

-0.11 0.18 32.13 0.43 A

74 85 01H 0.91 0.13 25.33 0.21 A

74 95 01H 0.8 0.32 44.16 0.59 A

74 101 01H 0.53 0.47 52.20 0.85 A

74 105 01H 0.91 0.39 48.29 0.13 A

75 80 02H 0.48 0.31 43.50 0.43 A

75 84 02H 0.77 0.85 64.58 0.48 0.29 58.9 A

75 84 02H 0.32 0.15 28.32 0.32 A

75 90 01H 0.59 0.60 57.30 0.80 0.53 41.6 A

75 92 04H 0.29 0.29 42.10 0.32 A

75 92 02H

-0.21 0.21 35.35 0.29 A

75 94 01H 0.8 0.59 56.95 0.72 0.48 49.8 A

77 54 02H 0.88 0.35 46.03 0.21 A

77 74 04H 0.96 0.28 41.37 0.21 A

77 90 02H 0.51 0.51 53.90 0.99 0.34 44 A

77 124 02H 1.04 0.20 34.33 0.27 A

77 126 02H 0.8 0.26 39.82 0.48 A

78 41 01H

-0.69 0.91 66.01 0.93 0.37 59.7 A

78 73 01H

-0.85 0.72 61.11 0.99 0.62 53.9 A

78 81 01H

-0.8 0.23 37.26 0.24 A

78 87 01H 0.83 0.24 38.15 0.21 A

78 103 01H 0.83 0.17 30.94 0.24 A

78 113 01H

-0.8 0.25 39.00 0.45 A

80 79 01H 0.51 0.32 44.16 0.61 A

80 85 02H 0.83 0.17 30.94 0.32 A

80 99 01H

-0.11 0.53 54.71 1.44 0.64 51.7 A

80 113 01H 0.53 0.16 29.67 0.43 A

81 80 01H 0.35 0.39 48.29 0.85 A

81 80 01H 0.67 0.23 37.26 0.56 A

81 110 02H 0.29 0.25 39.00 0.29 Page A-17

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 82 37 02H 0.88 0.83 64.08 1.04 0.74 56.4 A

82 49 06C 5.97 0.34 45.43 0.33 A

82 87 02H

-0.16 0.32 44.16 0.51 A

82 97 02H

-0.61 0.21 35.35 0.85 A

82 97 03H 0.88 0.10 19.84 0.35 A

82 101 01H 0.83 0.26 39.82 0.77 A

82 101 01H

-0.16 0.14 26.88 0.21 A

82 109 01H

-0.91 0.21 35.35 0.13 A

83 96 02H 0.19 0.34 45.43 0.67 A

83 98 01H 0.67 0.36 46.62 0.53 A

83 102 01H 0.56 0.55 55.48 0.80 0.46 48.5 A

83 102 01H 0.69 0.32 44.16 0.45 A

83 102 01H

-0.08 0.26 39.82 0.29 A

84 59 01H 0.91 0.27 40.61 0.77 A

84 93 02H 0.32 0.35 46.03 0.19 A

85 110 01H

-0.51 0.16 29.67 0.19 A

86 91 01H 0.05 0.32 44.16 0.43 A

86 93 01H

-0.53 0.70 60.52 0.59 0.26 49.5 A

88 47 01H

-0.75 0.18 32.13 0.32 A

88 79 01H

-0.32 0.51 53.90 0.35 A

88 79 01H

-0.77 0.32 44.16 0.96 A

88 83 01H 0.88 0.41 49.34 0.45 A

88 85 01H 0.29 0.39 48.29 0.91 A

88 93 01H 0.61 0.43 50.34 0.93 A

88 97 01H 0.56 0.40 48.82 1.04 A

88 99 01H

-0.91 0.31 43.50 0.40 A

88 105 01H

-0.88 0.41 49.34 0.59 A

88 105 01H 0.24 0.20 34.33 0.29 A

88 107 01H

-0.64 0.17 30.94 0.91 A

88 107 01H

-0.64 0.14 26.88 0.67 A

88 115 02H 0.69 0.20 34.33 0.13 A

88 115 01H

-0.69 0.17 30.94 0.32 A

89 54 02H 0.83 0.45 51.29 0.48 A

89 90 02H 0.77 0.31 43.50 0.91 A

89 96 01H 0.69 0.30 42.81 0.80 A

89 96 01H

-0.24 0.21 35.35 0.99 A

89 98 01H

-0.56 0.46 51.75 0.56 Page A-18

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 89 114 02H

-0.13 0.34 45.43 0.21 A

89 114 02H 0.37 0.30 42.81 0.13 A

90 51 01H 0.8 0.26 39.82 0.51 A

90 59 01H 0.27 0.36 46.62 0.19 A

90 59 01H

-0.83 0.31 43.50 0.40 A

90 89 01H 0.69 0.22 36.33 0.48 A

90 97 03H 0.43 0.50 53.49 0.59 A

90 97 01H

-0.35 0.30 42.81 0.88 A

90 125 01H

-0.96 0.11 21.84 0.32 A

91 64 02H 0.56 0.31 43.50 0.72 A

91 70 02H 0.91 0.18 32.13 0.29 A

91 72 01H 0.85 0.38 47.75 0.32 A

91 78 02H 0.16 0.23 37.26 0.72 A

91 84 01H

-0.4 0.37 47.19 0.59 A

91 88 01H 0.99 0.11 21.84 0.13 A

91 90 02H 0.85 0.22 36.33 0.43 A

91 90 02H

-1.01 0.14 26.88 0.29 A

91 94 01H 0.67 0.39 48.29 0.93 A

91 94 03H 0.83 0.27 40.61 0.45 A

91 94 02H 0.85 0.20 34.33 0.61 A

91 96 01H 0.56 0.54 55.10 0.85 0.4 45.4 A

91 96 01H

-0.64 0.43 50.34 0.88 A

91 98 01H 0.85 0.24 38.15 0.45 A

91 98 01H

-0.37 0.23 37.26 0.19 A

91 100 01H

-0.21 0.40 48.82 0.67 A

91 104 02H 0.75 0.19 33.26 0.27 A

91 120 02H 0.83 1.04 68.80 0.80 0.21 56.1 A

91 124 02H 0.75 0.27 40.61 0.21 A

92 25 01H 0.91 0.18 32.13 0.16 A

92 45 01H 0.48 0.30 42.81 0.27 A

92 95 02H

-0.51 0.39 48.29 1.12 A

92 95 02H 0.8 0.17 30.94 0.61 A

92 97 01H 0.77 0.37 47.19 0.93 A

92 101 01H 0.27 0.47 52.20 0.67 A

92 107 01H

-0.75 0.12 23.65 0.40 A

92 109 01H 0.37 0.19 33.26 0.27 A

92 113 01H 0.53 0.24 38.15 0.53 Page A-19

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 92 113 01H

-0.21 0.16 29.67 0.21 A

92 119 01H

-0.48 0.39 48.29 0.53 A

93 26 01H 0.77 0.36 46.62 0.64 A

93 50 02H 0.53 0.28 41.37 0.32 A

93 68 01H 0.61 0.34 45.43 0.21 A

93 74 01H

-0.83 0.37 47.19 0.27 A

93 74 02H 0.77 0.29 42.10 0.48 A

93 90 01H

-0.29 0.30 42.81 0.61 A

93 100 01H 0.35 0.35 46.03 0.48 A

93 122 02H 0.91 0.39 48.29 0.35 A

94 77 01H

-0.93 0.14 26.88 0.35 A

94 99 01H 0.29 0.26 39.82 0.35 A

94 139 07C 1.59 0.45 51.29 0.36 A

95 72 02H 0.69 0.37 47.19 0.27 A

95 72 02H 0.91 0.22 36.33 0.24 A

95 80 02H 0.43 0.39 48.29 0.91 A

95 80 02H 0.77 0.31 43.50 0.67 A

95 88 01H

-0.53 0.83 64.08 0.91 0.53 59.1 A

95 90 01H

-0.51 0.41 49.34 0.19 A

95 94 02H 0.91 0.35 46.03 0.53 A

95 94 01H 1.01 0.28 41.37 0.91 A

95 94 01H

-0.53 0.20 34.33 0.91 A

95 94 03H 0.35 0.16 29.67 0.53 A

95 96 01H

-0.21 0.58 56.59 1.47 1.02 46.4 A

95 96 01H 0.75 0.38 47.75 1.68 A

96 99 01H

-0.72 0.20 34.33 0.40 A

96 99 01H

-0.83 0.12 23.65 0.27 A

96 99 02H 0.56 0.12 23.65 0.59 A

96 103 01H

-0.72 0.32 44.16 0.53 A

98 53 01H

-0.83 0.21 35.35 0.27 A

99 60 01H

-0.8 0.27 40.61 0.53 A

99 92 02H

-0.21 0.43 50.34 0.21 A

99 92 02H 0.83 0.27 40.61 0.56 A

99 92 02H 0.75 0.20 34.33 0.24 A

99 112 01H

-0.67 0.17 30.94 0.16 A

99 114 02H 0.64 0.33 44.80 0.93 A

99 114 03H 0.77 0.20 34.33 0.32 Page A-20

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 99 128 02H 0.59 0.19 33.26 0.80 A

100 51 02H 0.64 0.21 35.35 1.47 A

100 63 01H

-0.8 0.32 44.16 0.37 A

100 65 01H

-0.72 0.34 45.43 0.27 A

100 91 03H

-0.21 0.43 50.34 1.41 A

100 95 01H 0.88 0.48 52.64 0.19 A

100 97 01H 0.61 0.25 39.00 0.51 A

100 107 01H

-0.8 0.16 29.67 0.21 A

100 111 01H

-0.8 0.48 52.64 0.72 A

100 119 01H

-0.77 0.42 49.84 0.24 A

101 56 02H 0.99 0.25 39.00 0.40 A

101 94 01H 0.83 0.69 60.22 0.32 0.19 47.7 A

101 104 03H 0.77 0.38 47.75 0.37 A

101 104 01H 0.93 0.38 47.75 0.56 A

101 104 03H

-0.08 0.21 35.35 0.69 A

101 118 01H

-0.8 0.24 38.15 0.29 A

102 93 02H 0.8 0.37 47.19 0.67 A

102 93 03H 0.69 0.21 35.35 0.91 A

102 99 01H 0.83 0.39 48.29 0.61 A

102 109 01H

-0.83 0.29 42.10 0.56 A

103 76 02H 0.72 0.43 50.34 0.27 A

103 76 01H

-0.37 0.27 40.61 0.88 A

103 80 06H 0.75 0.25 39.00 0.48 A

103 84 01H

-0.85 0.21 35.35 0.16 A

103 92 01H

-0.29 0.36 46.62 0.37 A

103 92 01H 0.93 0.18 32.13 0.29 A

103 96 01H 0.85 0.43 50.34 0.51 A

103 98 01H

-0.48 0.34 45.43 0.83 A

103 100 01H 0.75 0.24 38.15 0.35 A

103 102 01H

-0.19 0.19 33.26 0.16 A

103 106 03H

-0.91 0.17 30.94 0.83 A

103 110 01H 0.69 0.25 39.00 0.45 A

104 107 03H

-0.8 0.42 49.84 0.67 A

104 107 01H

-0.96 0.31 43.50 0.45 A

104 107 01H

-0.77 0.24 38.15 0.32 A

105 38 VS4

-0.77 0.34 45.43 0.47 A

105 74 02H 0.77 0.35 46.03 0.53 Page A-21

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 105 76 01H 0.85 0.21 35.35 0.35 A

105 112 02H 0.53 0.55 55.48 0.83 0.35 40.7 A

105 112 01H 0.29 0.27 40.61 0.21 A

105 112 01H

-0.88 0.24 38.15 0.32 A

105 124 06C

-0.96 0.27 40.61 0.24 A

105 124 01H 0.29 0.27 40.61 0.64 A

105 124 02H 0.53 0.22 36.33 0.96 A

105 124 06C

-0.96 0.18 32.13 0.24 A

105 124 05H

-0.11 0.14 26.88 0.27 A

106 57 05C

-0.84 0.26 39.82 0.36 A

106 57 02H 0.85 0.24 38.15 0.56 A

106 57 01H

-0.69 0.21 35.35 0.37 A

106 69 01H 0.35 0.30 42.81 0.61 A

106 87 02H

-0.35 0.35 46.03 0.53 A

106 91 01H 0.77 0.49 53.07 0.88 A

106 91 01H

-0.35 0.20 34.33 0.72 A

106 107 02H 0.8 0.23 37.26 0.43 A

106 107 01H 0.16 0.20 34.33 0.72 A

106 135 03H

-0.77 0.10 19.84 0.32 A

107 54 01H 0.75 0.15 28.32 0.85 A

107 60 01H

-0.75 0.28 41.37 0.27 A

107 66 01H

-0.72 0.19 33.26 1.17 A

107 66 01H 0.88 0.17 30.94 0.96 A

107 72 01H

-0.83 0.15 28.32 0.27 A

107 80 04H 0.91 0.45 51.29 0.35 A

107 80 02H 0.11 0.33 44.80 0.48 A

107 80 VS4 0.84 0.26 39.82 0.51 A

107 100 01H

-0.75 0.31 43.50 0.88 A

107 100 03H

-0.64 0.21 35.35 0.51 A

107 108 01H

-0.43 0.35 46.03 1.15 A

107 108 02H 0.03 0.34 45.43 1.55 A

107 108 05H 0.8 0.12 23.65 0.21 A

107 122 02H

-0.67 0.23 37.26 0.29 A

108 71 03H 0.61 0.34 45.43 0.85 A

108 71 01H 0.99 0.30 42.81 0.16 A

109 48 VS2 0.96 0.13 25.33 0.24 A

109 62 02H

-0.48 0.38 47.75 0.88 Page A-22

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 109 68 02H

-0.59 0.42 49.84 0.56 A

109 68 03H

-0.48 0.23 37.26 0.91 A

109 80 01H 0.8 0.24 38.15 0.21 A

109 80 01H 0.75 0.21 35.35 0.88 A

109 80 03H 0.83 0.14 26.88 0.21 A

109 86 02H 0.93 0.41 49.34 0.35 A

109 86 04H

-0.77 0.35 46.03 0.53 A

109 90 01H 0.35 0.47 52.20 0.96 A

109 94 01H 0.88 0.34 45.43 0.69 A

109 94 02H 0.75 0.26 39.82 0.27 A

109 112 01H 0.51 0.62 57.99 1.01 0.77 53.2 A

109 112 07C

-0.9 0.40 48.82 0.33 A

109 112 VS6

-0.79 0.28 41.37 0.26 A

109 112 01H

-0.83 0.21 35.35 0.32 A

109 112 07C

-0.87 0.20 34.33 0.12 A

109 112 VS2

-0.83 0.14 26.88 0.32 A

109 118 02H

-0.59 0.38 47.75 0.32 A

110 45 VS6

-0.65 0.31 43.50 0.16 A

110 61 01H

-0.8 0.32 44.16 0.35 A

110 69 02H

-0.83 0.17 30.94 0.29 A

110 73 07H 0.24 0.31 43.50 0.53 A

110 73 02H

-0.96 0.26 39.82 0.16 A

110 83 01H

-0.75 0.47 52.20 1.12 A

110 83 08C

-0.9 0.35 46.03 0.66 A

110 91 01H

-0.24 0.32 44.16 2.03 A

110 91 02H 0.88 0.27 40.61 0.16 A

110 103 01H 0.59 0.64 58.65 1.15 0.54 49.9 A

110 109 02H

-0.08 0.30 42.81 0.88 A

110 109 01H

-0.13 0.28 41.37 0.93 A

110 109 02H 0.93 0.22 36.33 0.21 A

110 123 03C

-0.84 0.23 37.26 0.27 A

110 131 01H 0.03 0.23 37.26 0.45 A

111 38 03H

-0.93 0.21 35.35 0.24 A

111 62 02H

-0.75 0.24 38.15 0.40 A

111 72 03H 0.8 0.21 35.35 0.45 A

111 90 02H 0.77 0.57 56.23 0.64 0.35 49 A

111 90 01H

-0.32 0.37 47.19 1.01 Page A-23

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 111 94 03H 0.85 0.31 43.50 0.48 A

113 54 03H

-0.93 0.38 47.75 0.21 A

113 66 01H

-0.29 0.27 40.61 0.40 A

113 82 01H

-0.85 0.42 49.84 0.45 A

113 88 01H

-0.64 0.39 48.29 1.17 A

113 90 01H 0.75 0.41 49.34 1.49 A

113 90 01H 0.59 0.33 44.80 0.83 A

113 92 03H 0.59 0.45 51.29 0.77 A

113 92 01H 0.53 0.41 49.34 0.80 A

113 92 02H 0.75 0.33 44.80 0.88 A

113 92 07H

-0.03 0.11 21.84 0.21 A

113 94 01H 0.59 0.59 56.95 1.28 0.53 53.6 A

113 94 02H 0.69 0.47 52.20 0.80 A

113 94 06C 0.78 0.24 38.15 0.45 A

113 94 01H

-0.56 0.22 36.33 0.80 A

113 96 03H

-0.21 0.42 49.84 0.37 A

113 96 03H 0.75 0.42 49.84 0.48 A

113 96 02H 0.96 0.35 46.03 0.43 A

113 98 03H 0.08 0.25 39.00 1.07 A

113 102 02H 0.59 0.42 49.84 1.33 A

113 104 01H

-0.45 0.73 61.40 0.80 0.24 46.4 A

113 114 04C 0.3 0.36 46.62 0.42 A

113 114 04C

-0.48 0.18 32.13 0.39 A

113 118 02H

-0.48 0.27 40.61 0.51 A

114 69 03H

-0.56 0.29 42.10 1.12 A

114 69 01H 0.21 0.25 39.00 0.24 A

114 69 01H 0.83 0.18 32.13 0.24 A

114 73 01H 0.64 0.20 34.33 0.48 A

114 75 02H

-0.37 0.70 60.52 0.51 0.32 49.5 A

114 75 02H 0.75 0.21 35.35 0.77 A

114 91 01H 0.29 0.54 55.10 1.07 0.77 43.4 A

114 91 02H 0.83 0.28 41.37 0.43 A

114 93 02H 0.75 0.47 52.20 0.51 A

114 93 02H

-0.8 0.22 36.33 0.32 A

114 111 02H 0.83 0.31 43.50 0.19 A

115 76 02H 0.32 0.48 52.64 0.77 A

115 88 01H

-0.67 0.21 35.35 1.41 Page A-24

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 115 98 02H 0.83 0.19 33.26 0.56 A

115 104 01H

-0.45 0.32 44.16 0.64 A

115 106 02H 0.61 0.34 45.43 0.67 A

115 108 01H 0

0.31 43.50 0.40 A

115 108 01H

-0.45 0.24 38.15 0.27 A

116 87 02H 0.05 0.66 59.29 1.28 0.58 51.7 A

116 87 02H 0.56 0.50 53.49 0.99 0.53 46.1 A

117 56 03H

-0.96 0.18 32.13 0.27 A

117 98 02H 0.48 0.46 51.75 0.53 A

117 98 VS6

-0.65 0.15 28.32 0.33 A

117 104 01H 0.8 0.44 50.82 0.85 A

119 96 02H 0.8 0.22 36.33 0.32 A

120 51 02H

-0.85 0.20 34.33 0.16 A

120 91 02H 0.91 0.66 59.29 0.75 0.35 50.1 A

120 91 02H

-0.88 0.39 48.29 0.80 A

121 90 01H

-0.88 0.36 46.62 0.59 A

121 90 01H

-0.83 0.32 44.16 1.01 A

121 98 02H 0.8 0.41 49.34 0.56 A

121 102 02H 0.77 0.39 48.29 0.48 A

121 104 02H 0.69 0.44 50.82 0.72 A

121 106 02H 0.64 0.34 45.43 0.24 A

121 106 02H 0.24 0.29 42.10 0.29 A

122 63 01H 0.37 0.26 39.82 0.48 A

122 89 01H

-0.24 0.47 52.20 0.77 A

123 48 03H 0.88 0.19 33.26 0.16 A

123 88 03H 0.88 0.28 41.37 0.40 A

123 94 01H 0.88 0.59 56.95 0.67 0.42 49.6 A

123 94 03H

-0.85 0.35 46.03 0.48 A

123 94 02H 0.21 0.29 42.10 0.29 A

123 94 02H 0.72 0.28 41.37 0.53 A

125 66 02H 0.83 0.33 44.80 0.24 A

125 98 01H

-0.72 0.37 47.19 0.35 A

125 102 02H 0.8 0.53 54.71 0.37 A

127 64 02H 0.67 0.22 36.33 0.27 A

128 71 02H 0.72 0.46 51.75 0.37 A

128 81 02H 0.91 0.35 46.03 0.27 A

128 91 01H

-0.8 0.27 40.61 0.37 Page A-25

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE Maximum NDE Structural Structural SG Row Col Elev Inch kHz Depth Axial Length Depth Amplitude (o/oTW)

Length (o/oTW)

(Vpp)

(Note 1)

(in.)

(Note 1)

A 128 97 01H 0.83 0.23 37.26 0.45 A

129 74 02H 0.8 0.70 60.52 0.21 0.16 47 A

129 90 01H 0.56 0.46 51.75 0.59 A

129 98 02H 0.56 0.21 35.35 0.43 A

130 65 01H

-0.77 0.23 37.26 0.35 A

130 95 01H 0.08 0.38 47.75 1.41 A

130 97 01H

-0.56 0.32 44.16 0.72 A

134 65 04H

-0.96 0.25 39.00 0.32 A

134 99 01H

-0.45 0.32 44.16 1.12 A

136 85 01H

-0.27 0.44 50.82 0.43 A

136 85 VS1 0.83 0.15 28.32 0.37 A

136 87 01H

-0.88 0.28 41.37 0.56 A

136 89 01H 0.29 0.24 38.15 0.37 A

137 84 01H 0.13 0.21 35.35 0.35 A

137 86 05H

-0.88 0.27 40.61 0.32 A

138 89 03H

-0.88 0.30 42.81 0.32 Notes:

1. The NOE maximum depth values were calculated using the Appendix I regression techniques(% TW as function of NOE voltage) and then reduced by 11 o/oTW in accordance with Reference [4.b]. Both the NOE maximum depth and structural depth values, shown in this table, reflect the 11 o/oTW reduction.

Page A-26

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 A.1.3 SGA Circ ODSCC Indications @TTS Table A-3: SGA Circ ODSCC Indications @TTS

+Point 300 kHz Conservative Percent NDE Percent Circumferential SG Row Col Location Amplitude Degraded Area (PDA)

Degraded Area Length (in.)

(Vpp)

(Note 1)

(Note 2)

A 109 102 TSH -0.06 4.45 43.7 25.8 1.03 A

110 101 TSH -0.09 2.13 18.7 12.2 0.44 A

30 55 TSH -0.14 1.66 17.8 12.7 0.42 A

103 66 TSH -0.13 1.49 14.0 0.33 A

103 98 TSH +0.03 1.46 36.5 17.9 0.86 A

21 124 TSH -0.03 1.45 17.8 10.1 0.42 A

100 103 TSH +0.00 1.42 10.6 6.5 0.25 A

104 97 TSH -0.06 1.40 12.3 8.5 0.29 A

92 119 TSH -0.24 1.36 9.3 6.5 0.22 A

32 115 TSH +0.42 1.27 29.3 18.1 0.69 A

103 70 TSH +0.00 1.19 26.7 5.5 0.63 A

107 100 TSH -0.03 1.13 12.3 8.8 0.29 A

100 103 TSH +0.00 1.10 10.6 6.5 0.25 A

107 102 TSH +0.09 1.03 28.0 12.8 0.66 A

106 97 TSH +0.00 0.94 29.3 0.69 A

91 120 TSH -0.03 0.91 12.3 0.29 A

89 120 TSH -0.15 0.81 7.2 0.17 A

93 72 TSH +0.05 0.73 14.9 0.35 A

92 119 TSH -0.15 0.72 11.5 0.27 A

106 95 TSH -0.03 0.67 25.9 0.61 A

28 121 TSH -0.03 0.66 19.9 0.47 A

29 120 TSH +0.15 0.65 15.7 0.37 A

107 94 TSH +0.03 0.65 33.5 0.79 A

77 102 TSH +0.03 0.64 39.5 0.93 A

85 92 TSH -0.13 0.56 12.7 0.30 A

106 99 TSH +0.00 0.56 22.9 0.54 A

97 104 TSH -0.03 0.55 11.5 0.27 A

100 95 TSH +0.03 0.55 19.9 0.47 A

29 114 TSH +0.15 0.54 25.9 0.61 A

81 118 TSH -0.09 0.53 17.8 0.42 A

30 53 TSH -0.03 0.52 18.7 0.44 A

70 71 TSH +0.05 0.49 27.6 0.65 A

93 68 TSH +0.05 0.49 14.9 0.35 A

31 52 TSH +0.29 0.45 12.3 0.29 A

104 97 TSH +0.11 0.45 13.6 0.32 Page A-27

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point 300 kHz Conservative Percent NDE Percent Circumferential SG Row Col Location Amplitude Degraded Area (PDA)

Degraded Area Length (in.)

(Vpp)

(Note 1)

(Note 2)

A 70 105 TSH +0.23 0.44 12.3 0.29 A

86 91 TSH -0.05 0.43 12.7 0.30 A

57 62 TSH +0.00 0.41 10.6 0.25 A

52 55 TSH -0.06 0.39 15.7 0.37 A

106 99 TSH +0.46 0.39 16.6 0.39 A

70 105 TSH -0.03 0.38 9.8 0.23 A

99 60 TSH +0.03 0.38 17.8 0.42 A

103 96 TSH -0.06 0.38 15.7 0.37 A

29 114 TSH +0.24 0.37 22.1 0.52 A

49 56 TSH -0.11 0.37 14.4 0.34 A

54 109 TSH +0.09 0.37 11.5 0.27 A

101 96 TSH +0.06 0.37 12.3 0.29 A

104 105 TSH -0.11 0.36 13.6 0.32 A

28 121 TSH +0.09 0.35 12.3 0.29 A

70 73 TSH +0.03 0.34 34.0 0.80 A

101 98 TSH +0.00 0.34 30.1 0.71 A

101 98 TSH +0.03 0.34 14.4 0.34 A

101 98 TSH +0.03 0.34 10.6 0.25 A

27 54 TSH -0.11 0.33 8.5 0.20 A

27 54 TSH -0.06 0.33 11.5 0.27 A

74 73 TSH -0.05 0.33 8.5 0.20 A

69 76 TSH +0.08 0.31 22.5 0.53 A

76 101 TSH +0.00 0.31 14.9 0.35 A

105 96 TSH +0.03 0.31 12.3 0.29 A

78 81 TSH +0.08 0.29 14.0 0.33 A

108 103 TSH -0.14 0.29 10.6 0.25 A

55 56 TSH -0.06 0.28 8.5 0.20 A

82 79 TSH -0.05 0.28 10.6 0.25 A

37 52 TSH +0.17 0.27 10.6 0.25 A

96 61 TSH +0.08 0.25 14.9 0.35 A

105 94 TSH -0.03 0.25 13.6 0.32 A

68 75 TSH -0.03 0.23 14.0 0.33 A

105 92 TSH -0.11 0.22 8.5 0.20 A

108 95 TSH -0.11 0.22 10.6 0.25 A

71 80 TSH +0.00 0.20 14.0 0.33 A

107 100 TSH -0.03 0.17 8.5 8.8 0.20 A

108 95 TSH -0.06 0.14 10.6 0.25 A

93 68 TSH +0.03 0.12 10.6 0.25 Page A-28

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point 300 kHz Conservative Percent NDE Percent Circumferential SG Row Col Location Amplitude Degraded Area (PDA)

Degraded Area Length (in.)

(Vpp)

(Note 1)

(Note 2)

Notes:

1. Calculated value assuming 100% TW flaw for entire Circ Extent of Flaw.

2. The percent degraded area (PDA) of the circumferential indications was determined using the EPRI Draw Program based on measurements from EPRI ETSS H-21410.1.

A.2 PWSCC Indications A.2.1 SGA Axial PWSCC Indications @ TTS Table A-4: SGA Axial PWSCC Indications @ TTS NDE Structural Structural SG Row Col Location

+Point 300 kHz Maximum NDEAxial Length Depth Amplitude (Vpp)

Depth Length (in.)

(%TW)

(in.)

(%TW)

A 107 80 TSH -0.16 2.65 78 0.19 0.1 78.4 A

107 66 TSH -0.08 2.57 100 0.21 0.1 89.9 A

27 8

TSH -7.17 1.94 88 0.29 0.29 79.9 A

57 56 TSH -0.20 1.81 76 0.34 0.12 81 A

86 61 TSH -15.89 1.69 93 0.27 A

33 58 TSH -3.88 1.68 57 0.26 A

31 58 TSH -0.03 1.67 59 0.11 A

113 66 TSH -0.08 1.46 96 0.16 A

4 121 TSH -0.60 1.44 66 0.17 A

90 51 TSH -0.11 1.36 81 0.17 0.11 65.6 A

18 59 TSH -0.32 1.28 87 0.24 0.21 78.4 A

109 82 TSH -0.19 1.23 98 0.16 0.08 89.3 A

36 123 TSH -0.27 1.22 72 0.21 0.18 68.3 A

92 119 TSH -0.15 1.21 95 0.15 0.09 93.5 A

20 47 TSH -0.52 1.14 57 0.23 A

24 111 TSH -0.15 1.11 63 0.21 A

94 117 TSH -0.15 1.10 95 0.15 0.09 61.8 A

33 126 TSH -10.41 1.09 52 0.18 A

90 97 TSH -0.11 1.08 57 0.11 A

100 51 TSH -0.06 1.06 50 0.17 A

32 55 TSH -0.14 1.06 72 0.20 0.12 85.6 A

85 82 TSH -0.21 1.06 73 0.19 0.13 69.2 A

88 85 TSH -0.13 1.06 99 0.16 0.08 96.4 A

75 80 TSH +0.21 0.95 42 0.16 A

29 128 TSH -0.06 0.94 70 0.15 Page A-29

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 NDE Structural Structural SG Row Col Location

+Point 300 kHz Maximum NDEAxial Length Depth Amplitude (Vpp)

Depth Length (in.)

(%TW)

(in.)

(%TW)

A 102 93 TSH -0.23 0.87 99 0.14 0.09 77.8 A

48 115 TSH-0.45 0.86 68 0.15 A

106 91 TSH -0.11 0.74 70 0.14 A

88 79 TSH -0.13 0.72 100 0.16 A

100 65 TSH -0.21 0.69 79 0.13 0.08 73.2 A

91 112 TSH -0.12 0.67 97 0.18 0.09 76.8 A

93 72 TSH -0.19 0.66 99 0.21 0.08 94.1 A

16 59 TSH -0.11 0.65 77 0.13 A

88 121 TSH -0.09 0.57 77 0.12 A

80 101 TSH -0.21 0.57 89 0.21 A

99 64 TSH -0.21 0.56 69 0.19 A

86 79 TSH -0.08 0.56 98 0.19 0.08 94 A

95 102 TSH -0.14 0.54 100 0.20 A

102 85 TSH -0.16 0.54 26 0.19 A

89 66 TSH -0.08 0.53 79 0.16 0.1 69.6 A

92 71 TSH -0.13 0.52 88 0.11 0.11 62.9 A

93 84 TSH -0.13 0.51 100 0.21 A

94 89 TSH -0.19 0.50 100 0.16 A

33 58 TSH -3.56 0.50 42 0.17 A

7 32 TSH -0.08 0.49 77 0.11 A

91 110 TSH -0.21 0.49 99 0.15 0.09 72.8 A

87 94 TSH -0.19 0.47 87 0.16 0.11 66.4 A

105 64 TSH -0.13 0.45 83 0.16 0.11 66.8 A

88 89 TSH -0.11 0.42 85 0.19 0.08 45.8 A

6 55 TSH -0.16 0.41 99 0.11 0.1 77.2 A

121 74 TSH -0.37 0.40 100 0.24 A

25 42 TSH -0.13 0.36 88 0.11 0.11 68.5 Page A-30

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 A.2.2 Axial PWSCC Indications @ TSP Table A-5: SGA Axial PWSCC Indications @ TSP

+Point NDE Structural Structural SG Row Col Location 300 kHz Maximum NDEAxial Length Depth Amplitude Depth Length (in.)

(Vpp)

(o/oTW)

(in.)

(o/oTW)

A 22 41 VS4+0.93 0.71 78 0.27 A.2.3 Circ PWSCC Indications @TTS Table A-6: SGA Circ PWSCC Indications @TTS

+Point 300 kHz Conservative Percent NDE Percent Circumferential SG Row Col Location Amplitude (Vpp)

Degraded Area (PDA)

Degraded Area Length (in.)

(Note 1)

(Note 2)

A 36 23 TSH -11.04 5.47 25.5 0.60 A

36 23 TSH -10.61 5.18 21.2 0.50 A

36 23 TSH -7.79 3.82 18.2 0.43 A

48 67 TSH -11.63 3.73 19.1 0.45 A

36 23 TSH -6.13 3.07 14.0 0.33 A

24 13 TSH -1.20 2.43 17.0 0.40 A

24 139 TSH -8.04 2.21 13.6 0.32 A

36 23 TSH -8.24 2.00 12.7 0.30 A

48 61 TSH -7.84 1.53 11.9 0.28 A

24 13 TSH -10.91 1.48 10.6 0.25 A

24 13 TSH -4.53 1.26 9.8 0.23 A

43 38 TSH -9.55 1.13 7.6 0.18 A

36 23 TSH -8.61 1.04 8.5 0.20 A

100 63 TSH -0.05 0.96 9.8 7.25 0.23 A

24 13 TSH -6.93 0.81 6.4 0.15 A

100 63 TSH -0.08 0.78 10.6 0.25 A

26 11 TSH -6.03 0.70 8.5 0.20 A

36 23 TSH -11.41 0.69 8.5 0.20 A

24 13 TSH -3.73 0.68 7.6 0.18 A

24 139 TSH -11.91 0.59 6.4 0.15 A

36 23 TSH -7.23 0.59 8.5 0.20 A

24 13 TSH -7.81 0.55 6.4 0.15 A

24 13 TSH -9.57 0.49 6.4 0.15 Page A-31

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point 300 kHz Conservative Percent NDE Percent Circumferential SG Row Col Location Amplitude (Vpp)

Degraded Area (PDA)

Degraded Area Length (in.)

(Note 1)

(Note 2)

A 24 13 TSH -10.16 0.48 6.4 0.15 A

24 13 TSH -5.95 0.48 7.6 0.18 A

36 23 TSH -13.31 0.44 7.6 0.18 A

24 13 TSH -8.56 0.41 6.4 0.15 A

70 69 TSH -0.05 0.32 10.6 0.25 A

100 63 TSH -0.05 0.17 9.8 7.25 0.23 Notes:

1. Calculated value assuming 100% TW flaw for entire Circ Extent of Flaw.

2. The percent degraded area (PDA) of the circumferential indications was determined using the EPRI Draw Program based on measurements from EPRI ETSS 96701.1 Page A-32

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 APPENDIX B:

SGB 1D28 ODSCC AND PWSCC INDICATIONS B.1 SGB ODSCC Indications B.1.1 SGB Axial ODSCC Indications @ TTS Table B-1: SGB Axial ODSCC Indications @ TTS

+Point300 NDE NDE Maximum Structural SG Row Col Location kHz Depth Axial Structural Depth (%TW)

Amplitude

(%TW)

Length Length (in.)

(Note 1)

(Vpp)

(Note 1)

(in.)

B 30 51 TSH +0.75 2.22 80 0.60 0.31 72.5 B

76 93 TSH +1.58 0.99 67 0.37 0.32 59.1 B

73 90 TSH +0.52 0.76 62 0.23 B

73 90 TSH +0.69 0.71 61 0.72 0.55 55.6 B

26 117 TSH +0.33 0.60 58 0.33 B

70 97 TSH +0.29 0.52 56 0.52 B

31 50 TSH +0.98 0.50 55 0.29 B

33 52 TSH +0.49 0.45 54 0.34 B

34 51 TSH +0.78 0.33 49 0.11 B

72 101 TSH +1.21 0.26 45 0.20 Notes:

1. The NOE maximum depth values were calculated using the Appendix I regression techniques(% TW as function of NOE voltage) and then reduced by 11 %TW in accordance with Reference [5.e]. Both the NOE maximum depth and structural depth values, shown in this table, reflect the 11 % TW reduction.

Page B-1

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 B.1.2 SGB Axial ODSCC Indications @ TSP Table B-2: SGB Axial ODSCC Indications @ TSP

+Point300 NDE NDE Structural Structural SG Row Col Location kHz Maximum Axial Length Depth (o/oTW)

Amplitude Depth (o/oTW)

Length (Vpp)

(Note 1)

(in.)

(Note 1)

B 73 94 0lH-0.40 1.27 73.0 1.71 0.38 59.4 B

24 115 01H +0.53 1.17 71.3 0.93 0.51 64.7 B

1 44 DBH +0.64 0.95 66.9 1.89 0.59 61.6 B

89 90 01H +0.16 0.95 66.9 1.57 0.98 54 B

89 66 02H +0.59 0.94 66.7 0.56 0.29 47.6 B

75 92 01H +0.19 0.93 66.5 1.25 0.51 58.5 B

75 92 02H +0.72 0.85 64.6 1.84 0.86 49.9 B

80 89 01H +0.85 0.85 64.6 0.69 0.54 54.1 B

31 112 02H -0.21 0.84 64.3 1.84 0.32 55.7 B

33 150 02H +0.80 0.79 63.1 0.35 0.21 53.4 B

91 68 01H +0.24 0.77 62.5 1.95 1.6 50.1 B

31 112 01H +0.88 0.76 62.2 1.20 0.21 53.1 B

85 96 05H +0.59 0.74 61.7 1.31 0.69 45.9 B

89 106 01H -0.43 0.72 61.1 1.60 0.62 52.9 B

34 119 01H +0.32 0.70 60.5 0.91 0.59 50.9 B

80 87 01H -0.64 0.69 60.2 0.67 0.26 51.4 B

89 110 01H +0.56 0.68 59.9 0.67 0.29 50.4 B

2 135 01H -0.11 0.67 59.6 1.87 1.23 47.8 B

106 113 01H -0.32 0.66 59.3 0.85 0.51 45.5 B

23 106 01H +0.64 0.65 59.0 0.93 0.64 50 B

90 119 03H +0.43 0.64 58.6 0.75 0.45 52.8 B

78 99 01H -0.35 0.63 58.3 1.79 0.45 49.8 B

28 103 0lH-0.48 0.62 58.0 0.91 0.51 48.6 B

75 116 01H +0.77 0.62 58.0 1.79 0.35 49.4 B

95 104 01H -0.24 0.62 58.0 1.04 0.45 48 B

41 108 01H +0.56 0.60 57.3 0.45 0.24 43.4 B

79 92 02H -0.53 0.60 57.3 0.72 0.43 50 B

89 102 01H -0.83 0.60 57.3 0.85 1.31 36 B

79 80 01H -0.83 0.59 56.9 0.53 0.38 52 B

23 114 01H +0.80 0.58 56.6 1.23 0.67 51.6 B

80 83 01H -0.27 0.58 56.6 0.43 B

72 79 01H +0.91 0.57 56.2 0.43 B

39 110 01H +0.72 0.56 55.9 0.77 0.69 42.9 B

40 109 02H -0.16 0.54 55.1 1.47 0.62 50.1 Page B-2

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE NDE Structural Structural SG Row Col Location kHz Maximum Axial Length Depth (%TW)

Amplitude Depth (%TW)

Length (Vpp)

(Note 1)

(in.)

(Note 1)

B 73 80 01H +0.77 0.54 55.1 0.59 B

80 79 06H +0.13 0.54 55.1 0.80 0.4 44.5 B

29 102 02H -0.27 0.53 54.7 1.47 0.43 47.8 B

90 103 03H +0.05 0.53 54.7 0.48 B

79 44 06H +0.75 0.52 54.3 0.61 B

80 89 05H-0.45 0.52 54.3 0.88 0.53 47 B

18 57 DBH +2.56 0.51 53.9 0.72 B

32 107 01H -0.56 0.51 53.9 0.59 B

89 98 01H -0.29 0.51 53.9 1.04 0.37 46.5 B

23 114 03H +0.51 0.50 53.5 0.93 0.32 47.5 B

34 111 01H +0.19 0.50 53.5 1.31 0.72 40.9 B

29 112 01H -0.21 0.49 53.1 0.96 0.7 50 B

29 112 03H +0.64 0.49 53.1 0.96 0.78 44.1 B

31 110 02H +0.88 0.49 53.1 0.75 B

33 108 01H +0.77 0.49 53.1 0.24 B

34 103 02H -0.29 0.49 53.1 0.85 B

74 93 02H +0.67 0.49 53.1 0.56 B

85 74 VS6 +0.99 0.49 53.1 0.30 B

4 107 03H +0.48 0.48 52.6 0.72 B

23 138 01H +0.88 0.48 52.6 0.13 B

28 107 02H +0.85 0.48 52.6 0.48 B

74 93 01H +0.16 0.48 52.6 1.44 0.48 43.7 B

79 98 06H +0.99 0.48 52.6 0.80 B

80 89 02H +0.85 0.48 52.6 0.24 B

34 111 01H +0.43 0.47 52.2 0.93 B

19 104 04H +0.80 0.46 51.7 0.61 B

23 50 01H +0.75 0.46 51.7 0.37 B

27 118 01H -0.59 0.46 51.7 0.61 B

62 71 VS5 +3.55 0.46 51.7 0.25 B

75 116 VS4+0.86 0.46 51.7 0.38 B

79 112 03H-0.64 0.46 51.7 0.37 B

28 103 0lH-0.48 0.45 51.3 0.85 0.51 48.6 B

32 107 02H +0.16 0.45 51.3 1.55 0.56 40.3 B

73 80 01H +0.29 0.45 51.3 0.45 B

79 92 01H -0.83 0.45 51.3 0.61 B

110 91 02H +0.53 0.45 51.3 0.83 B

24 115 01H -0.32 0.44 50.8 0.64 Page B-3

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE NDE Structural Structural SG Row Col Location kHz Maximum Axial Length Depth (%TW)

Amplitude Depth (%TW)

Length (Vpp)

(Note 1)

(in.)

(Note 1)

B 104 93 02H +0.67 0.44 50.8 0.67 B

85 94 0lH-0.40 0.43 50.3 1.76 1.09 46.5 B

29 118 01H +0.83 0.41 49.3 0.37 B

64 95 01H +0.75 0.41 49.3 0.48 B

5 134 01H +0.64 0.40 48.8 0.56 B

21 104 04H-0.83 0.40 48.8 0.35 B

53 126 01H +0.83 0.40 48.8 0.32 B

67 92 01H -0.32 0.40 48.8 0.88 B

23 120 02H +0.27 0.39 48.3 0.69 B

75 86 02H +0.83 0.39 48.3 0.43 B

76 115 06H +0.13 0.39 48.3 1.01 B

79 94 01H +0.80 0.39 48.3 0.37 B

80 35 06C-0.85 0.39 48.3 0.37 B

80 93 02H -0.11 0.39 48.3 1.81 B

104 99 01H +0.83 0.39 48.3 0.29 B

23 118 03H +0.83 0.38 47.8 0.29 B

23 126 01H -0.85 0.38 47.8 0.64 B

28 103 04H-0.53 0.38 47.8 0.19 B

28 111 01H -0.61 0.38 47.8 0.59 B

51 106 02H -0.59 0.38 47.8 0.43 B

80 63 02H +0.40 0.38 47.8 1.28 B

89 76 02H +0.16 0.38 47.8 0.27 B

89 90 01H +0.32 0.38 47.8 0.96 B

90 97 02H +0.85 0.38 47.8 0.43 B

1 28 05H +0.16 0.37 47.2 0.48 B

74 85 02H +0.80 0.37 47.2 0.56 B

75 92 01H -0.99 0.37 47.2 0.48 B

80 101 01H +0.45 0.37 47.2 0.77 B

89 102 01H -0.35 0.37 47.2 1.49 B

37 104 01H -0.35 0.36 46.6 0.16 B

61 88 02H +0.75 0.36 46.6 0.51 B

65 92 01H +0.61 0.36 46.6 0.40 B

80 67 02H -0.11 0.36 46.6 0.67 B

80 87 01H +0.13 0.36 46.6 0.45 B

85 94 01H +0.08 0.36 46.6 1.44 B

90 97 01H +0.27 0.36 46.6 0.37 B

1 164 DBH -0.88 0.35 46.0 0.37 Page B-4

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE NDE Structural Structural SG Row Col Location kHz Maximum Axial Length Depth (%TW)

Amplitude Depth (%TW)

Length (Vpp)

(Note 1)

(in.)

(Note 1)

B 2

159 DBH -0.24 0.35 46.0 1.39 B

3 12 05H -0.88 0.35 46.0 0.77 B

29 112 01H +0.21 0.35 46.0 0.40 B

73 122 01H +0.72 0.35 46.0 0.29 B

88 45 07H-0.77 0.35 46.0 0.19 B

99 94 01H +0.75 0.35 46.0 0.35 B

100 89 0lH-0.72 0.35 46.0 1.04 B

4 153 01H +0.80 0.34 45.4 0.37 B

19 110 04H +0.91 0.34 45.4 0.24 B

76 79 01H -0.03 0.34 45.4 0.64 B

79 100 01H +0.51 0.34 45.4 0.69 B

90 65 02H +0.19 0.34 45.4 1.04 B

28 115 02H +0.80 0.33 44.8 0.59 B

29 114 04H-0.03 0.33 44.8 0.24 B

75 30 04H-0.45 0.33 44.8 0.45 B

75 32 04H -0.16 0.33 44.8 0.27 B

76 93 02H +0.72 0.33 44.8 0.53 B

88 81 02H -0.69 0.33 44.8 0.51 B

91 88 01H +0.69 0.33 44.8 0.19 B

1 52 04C +0.85 0.32 44.2 0.35 B

4 109 01H +0.51 0.32 44.2 0.59 B

24 111 04H-0.64 0.32 44.2 0.91 B

33 108 05H +0.45 0.32 44.2 0.72 B

45 106 01H +0.32 0.32 44.2 0.67 B

75 90 02H +0.83 0.32 44.2 0.35 B

79 92 07H -0.19 0.32 44.2 0.51 B

79 112 02H +0.85 0.32 44.2 0.80 B

88 93 01H +0.75 0.32 44.2 0.96 B

1 164 04C-0.80 0.31 43.5 0.27 B

72 133 01H +0.77 0.31 43.5 0.96 B

73 124 02H -0.96 0.31 43.5 0.93 B

79 100 03C +0.85 0.31 43.5 0.21 B

80 101 01H +0.75 0.31 43.5 0.40 B

85 94 03H-0.24 0.31 43.5 0.69 B

89 82 02H -0.16 0.31 43.5 1.63 B

98 61 02H +0.32 0.31 43.5 0.37 B

2 7

05C +0.24 0.30 42.8 0.45 Page B-5

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE NDE Structural Structural SG Row Col Location kHz Maximum Axial Length Depth (%TW)

Amplitude Depth (%TW)

Length (Vpp)

(Note 1)

(in.)

(Note 1)

B 19 102 02H -0.56 0.30 42.8 0.37 B

25 124 02H +0.77 0.30 42.8 0.45 B

28 109 01H +0.48 0.30 42.8 0.67 B

28 113 01H +0.75 0.30 42.8 1.39 B

33 104 04H-0.67 0.30 42.8 0.11 B

74 85 01H +0.11 0.30 42.8 0.51 B

79 100 01H -0.64 0.30 42.8 0.61 B

1 24 05H-0.40 0.29 42.1 0.16 B

3 12 05H +0.19 0.29 42.1 0.48 B

23 62 04H +0.77 0.29 42.1 0.21 B

69 96 01H +0.45 0.29 42.1 0.43 B

74 85 VS5-0.73 0.29 42.1 0.25 B

75 58 02H -0.80 0.29 42.1 0.21 B

75 62 VS4 +0.79 0.29 42.1 0.10 B

75 92 02H-0.64 0.29 42.1 0.85 B

79 44 07C +0.93 0.29 42.1 0.80 B

85 32 05H -0.69 0.29 42.1 0.85 B

89 76 02H +0.72 0.29 42.1 0.43 B

90 65 01H -0.35 0.29 42.1 0.67 B

90 77 02H +0.45 0.29 42.1 1.33 B

91 88 01H +0.21 0.29 42.1 0.19 B

2 131 05H +0.37 0.28 41.4 0.19 B

2 135 05H +0.51 0.28 41.4 0.83 B

28 25 01H +0.85 0.28 41.4 0.45 B

31 102 01H -0.51 0.28 41.4 0.59 B

67 90 01H -0.11 0.28 41.4 0.67 B

80 35 07C +0.96 0.28 41.4 0.24 B

85 96 06C-0.96 0.28 41.4 0.51 B

90 99 02H +0.88 0.28 41.4 0.32 B

4 159 02H +0.37 0.27 40.6 0.19 B

15 110 03H-0.64 0.27 40.6 0.35 B

21 160 03C-0.19 0.27 40.6 0.29 B

23 124 01H -0.56 0.27 40.6 0.35 B

28 113 02H-0.48 0.27 40.6 1.79 B

29 154 02H +0.85 0.27 40.6 0.24 B

66 77 01H +0.53 0.27 40.6 0.53 B

75 82 01H +0.72 0.27 40.6 0.67 Page B-6

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE NDE Structural Structural SG Row Col Location kHz Maximum Axial Length Depth (%TW)

Amplitude Depth (%TW)

Length (Vpp)

(Note 1)

(in.)

(Note 1)

B 88 93 01H +0.37 0.27 40.6 0.45 B

90 83 02H +0.43 0.27 40.6 0.93 B

109 100 02H +0.75 0.27 40.6 0.35 B

27 102 01H -0.19 0.26 39.8 0.29 B

34 25 01H +0.88 0.26 39.8 0.24 B

39 116 02H +0.77 0.26 39.8 0.16 B

63 76 01H +0.61 0.26 39.8 1.23 B

67 88 01H +0.61 0.26 39.8 0.48 B

80 45 07H -0.99 0.26 39.8 0.19 B

80 89 03H -0.21 0.26 39.8 0.35 B

85 98 02H +0.77 0.26 39.8 0.40 B

94 73 0lH-0.45 0.26 39.8 0.85 B

1 2

01H +0.91 0.25 39.0 0.29 B

1 140 01H +0.13 0.25 39.0 0.16 B

4 139 01H -0.21 0.25 39.0 0.75 B

23 50 01H +0.83 0.25 39.0 0.43 B

24 111 04H -0.61 0.25 39.0 0.61 B

31 46 01H +0.80 0.25 39.0 0.61 B

43 112 02H +0.64 0.25 39.0 0.35 B

63 76 06H-0.37 0.25 39.0 1.36 B

75 84 04H +0.67 0.25 39.0 0.21 B

80 79 01H -0.16 0.25 39.0 0.59 B

80 103 05H +0.91 0.25 39.0 0.19 B

87 98 03H +0.40 0.25 39.0 0.40 B

89 92 02H-0.64 0.25 39.0 0.91 B

90 53 02H +0.93 0.25 39.0 0.40 B

1 22 03H -0.80 0.24 38.1 0.21 B

19 118 03H +0.85 0.24 38.1 0.37 B

24 63 04H -1.01 0.24 38.1 0.11 B

31 102 01H +0.21 0.24 38.1 0.24 B

43 112 02H -0.16 0.24 38.1 0.51 B

66 95 01H +0.16 0.24 38.1 1.01 B

72 133 02H +0.85 0.24 38.1 0.32 B

75 30 02H +0.80 0.24 38.1 0.43 B

80 63 02H -0.19 0.24 38.1 0.35 B

80 63 06H +0.85 0.24 38.1 0.19 B

89 94 03H-0.77 0.24 38.1 0.67 Page B-7

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE NDE Structural Structural SG Row Col Location kHz Maximum Axial Length Depth (%TW)

Amplitude Depth (%TW)

Length (Vpp)

(Note 1)

(in.)

(Note 1)

B 96 111 07H +0.88 0.24 38.1 0.16 B

98 39 VS6 +0.71 0.24 38.1 0.33 B

1 112 03H -0.96 0.23 37.3 0.19 B

20 105 04H-0.32 0.23 37.3 0.29 B

51 110 01H +0.77 0.23 37.3 0.19 B

79 44 07C +0.11 0.23 37.3 0.40 B

1 22 05H -0.88 0.22 36.3 0.24 B

29 110 02H +0.69 0.22 36.3 0.32 B

31 140 02H +0.91 0.22 36.3 0.45 B

74 85 02H +0.69 0.22 36.3 0.59 B

80 89 01H +0.11 0.22 36.3 0.27 B

80 103 01H -0.24 0.22 36.3 0.59 B

85 82 0lH-0.72 0.22 36.3 0.69 B

98 95 01H +0.51 0.22 36.3 0.75 B

19 110 03H +0.67 0.21 35.4 0.37 B

19 110 03H +0.75 0.21 35.4 0.35 B

20 121 01H +0.64 0.21 35.4 1.09 B

31 112 02H -0.99 0.21 35.4 0.16 B

31 130 01H +0.61 0.21 35.4 0.45 B

33 108 01H -0.85 0.21 35.4 0.32 B

61 76 01H -0.80 0.21 35.4 0.16 B

75 62 VS4-0.15 0.21 35.4 0.23 B

80 53 05C +0.85 0.21 35.4 0.27 B

80 103 01H -0.80 0.21 35.4 0.32 B

89 100 01H +0.19 0.21 35.4 0.32 B

97 94 0lH-0.72 0.21 35.4 0.27 B

113 104 01H +0.24 0.21 35.4 0.85 B

118 75 01H +0.72 0.21 35.4 0.69 B

23 106 05H +0.88 0.20 34.3 0.13 B

27 52 01H +0.75 0.20 34.3 0.32 B

28 37 01H +0.61 0.20 34.3 0.43 B

48 109 01H +0.51 0.20 34.3 0.35 B

76 79 01H -0.83 0.20 34.3 0.51 B

80 21 04H-0.83 0.20 34.3 0.16 B

80 79 01H -0.83 0.20 34.3 0.37 B

24 117 01H +0.85 0.19 33.3 0.24 B

28 107 02H -0.67 0.19 33.3 0.40 Page B-8

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE NDE Structural Structural SG Row Col Location kHz Maximum Axial Length Depth (%TW)

Amplitude Depth (%TW)

Length (Vpp)

(Note 1)

(in.)

(Note 1)

B 28 111 02H +0.29 0.19 33.3 1.09 B

28 127 01H -0.80 0.19 33.3 0.32 B

29 134 01H -0.85 0.19 33.3 0.24 B

31 104 04H +1.28 0.19 33.3 0.43 B

33 108 02H +0.75 0.19 33.3 0.67 B

34 103 02H +0.53 0.19 33.3 0.53 B

41 144 04H +0.85 0.19 33.3 0.21 B

53 84 02H +0.85 0.19 33.3 0.21 B

73 124 04H -0.91 0.19 33.3 0.27 B

89 62 01H +0.11 0.19 33.3 1.81 B

89 82 VS6 +0.86 0.19 33.3 0.20 B

89 104 01H -0.11 0.19 33.3 0.24 B

23 130 01H -0.96 0.18 32.1 0.11 B

33 118 01H +0.77 0.18 32.1 0.37 B

34 129 01H +0.48 0.18 32.1 0.24 B

53 126 01H +0.72 0.18 32.1 0.27 B

75 90 03H +0.83 0.18 32.1 0.37 B

75 118 01H -0.24 0.18 32.1 0.53 B

81 74 02H +0.67 0.18 32.1 0.56 B

91 94 02H +0.75 0.18 32.1 0.32 B

91 94 03H +0.61 0.18 32.1 0.32 B

23 132 01H +0.83 0.17 30.9 0.21 B

27 116 02H +0.80 0.17 30.9 0.16 B

33 112 01H -0.35 0.17 30.9 0.80 B

34 107 02H +0.85 0.17 30.9 0.21 B

53 126 01H -0.19 0.17 30.9 0.13 B

75 90 03H +0.61 0.17 30.9 0.48 B

94 105 0lH-0.45 0.17 30.9 0.45 B

95 142 01H +0.83 0.17 30.9 0.21 B

27 154 04H +0.91 0.16 29.7 0.16 B

28 115 02H -0.83 0.16 29.7 0.48 B

29 112 01H +0.88 0.16 29.7 0.29 B

34 129 01H +0.72 0.16 29.7 0.29 B

74 69 01H -0.19 0.16 29.7 0.32 B

75 88 01H -0.80 0.16 29.7 0.45 B

79 106 02H +0.96 0.16 29.7 0.21 B

80 67 01H -0.93 0.16 29.7 0.21 Page B-9

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28

+Point300 NDE NDE Structural Structural SG Row Col Location kHz Maximum Axial Length Depth (%TW)

Amplitude Depth (%TW)

Length (Vpp)

(Note 1)

(in.)

(Note 1)

B 89 82 02H +0.64 0.16 29.7 0.45 B

20 109 02H +0.91 0.15 28.3 0.16 B

21 104 05H +0.37 0.15 28.3 0.40 B

21 104 05H +0.91 0.15 28.3 0.16 B

27 52 01H +0.75 0.15 28.3 0.19 B

28 111 02H +0.96 0.15 28.3 0.29 B

29 130 01H -0.83 0.15 28.3 0.32 B

29 140 04H +0.88 0.15 28.3 0.21 B

66 91 02H +0.77 0.15 28.3 0.43 B

72 133 02H +0.83 0.15 28.3 0.24 B

109 106 01H -0.75 0.15 28.3 0.40 B

113 106 01H -0.61 0.15 28.3 0.29 B

1 140 01H -0.67 0.14 26.9 0.69 B

27 102 01H +0.91 0.14 26.9 0.77 B

28 103 02H +0.91 0.14 26.9 0.59 B

31 18 01H -0.19 0.14 26.9 0.19 B

108 109 01H +0.21 0.14 26.9 0.27 B

21 16 01H +0.88 0.13 25.3 0.16 B

28 109 01H +0.45 0.13 25.3 0.16 B

33 108 05H -0.11 0.13 25.3 0.43 B

80 127 01H -0.83 0.13 25.3 0.11 Notes:

1. The NOE maximum depth values were calculated using the Appendix I regression techniques (o/oTW as function of NOE voltage) and then reduced by 11 o/oTW in accordance with Reference [5.e]. Both the NOE maximum depth and structural depth values, shown in this table, reflect the 11 o/oTW reduction.

Page B-10

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 B.1.3 SGB Circ ODSCC Indications @TTS Table B-3: SGB Circ ODSCC Indications @TTS

+Point Conservative NDE Percent 300 kHz Percent Degraded Circumferential SG Row Col Location Degraded Amplitude Area {PDA)

Area Length {in.)

(Vpp)

(Note 1)

(Note 2)

B 24 51 TSH -0.03 0.51 14.4 0.34 B

24 121 TSH+0.03 0.98 16.6 0.39 B

29 46 TSH+0.09 0.71 11.5 0.27 B

34 49 TSH+0.32 0.31 11.5 0.27 B

40 51 TSH+0.00 0.45 18.7 0.44 B

40 53 TSH+0.14 0.37 22.9 0.54 B

40 53 TSH+0.14 0.58 11.5 0.27 B

45 52 TSH -0.03 1.69 15.7 6.11 0.37 B

46 53 TSH+0.00 0.45 8.5 0.20 B

60 107 TSH+0.11 0.4 13.6 0.32 B

69 68 TSH+0.06 0.46 20.8 0.49 B

73 74 TSH+0.03 0.37 14.4 0.34 B

73 74 TSH+0.14 0.37 10.6 0.25 B

73 74 TSH -0.17 0.27 8.5 0.20 B

79 80 TSH+0.03 0.43 22.5 0.53 B

79 100 TSH -0.06 0.34 12.3 0.29 B

80 93 TSH+0.17 0.44 11.5 0.27 B

96 73 TSH -0.06 0.56 28.0 0.66 Notes:

1. Calculated value assuming 100% TW flaw for entire Circ Extent of Flaw.

2. The percent degraded area (PDA) of the circumferential indications was determined using the EPRI Draw Program based on measurements from EPRI ETSS H-21410.1.

Page B-11

framatome Document No.: 51-9382488-002 Palisades Steam Generator Condition Monitoring for 1 D28 8.2 SGB PWSCC Indications B.2.1 SGB Axial PWSCC Indications @ TTS Table B-4: SGB Axial PWSCC lndications@TTS

+Point300 NDE NDEAxial Structural SG Row Col Location kHz Maximum Length Structural Depth Amplitude Length (in.)

(Vpp)

Depth (o/oTW)

(in.)

(o/oTW)

B 3

108 TSH -0.32 1.66 99 0.32 0.20 87.3 B

3 136 TSH -0.34 0.46 65 0.14 B

19 54 TSH -0.37 1.33 95 0.17 0.12 79.6 B

25 106 TSH -2.13 1.26 56 0.14 B

36 105 TSH -0.34 1.39 79 0.29 B

42 103 TSH -1.70 2.47 76 0.37 B

56 9

TSH -9.37 0.83 23 0.17 B

76 115 TSH -0.09 0.42 10 0.21 B

88 45 TSH -0.06 0.66 83 0.14 B

98 89 TSH -0.14 0.50 50 0.17 B.2.2 SGB Circ PWSCC Indications @TTS Table B-5: SGB Circ PWSCC Indications @TTS

+Point Conservative NDE 300 kHz Percent Percent Circumferential SG Row Col Location Amplitude Degraded Degraded Length (in.)

(Vpp)

Area (PDA)

Area (Note 1)

(PDA)

B 54 25 TSH -11.82 0.89 9

0.22 Notes:

1. Calculated value assuming 100% TW flaw for entire Circ Extent of Flaw.

Page B-12

PNP 2025-071 Third Supplement to Response to Second Request for Additional Information Framatome Document 51-9394013-002 Palisades Steam Generator Operational Assessment for Cycle 29 304 Pages Follow

framatome 20004-028 (03/26/2024)

Framatome Inc.

Engineering Information Record Document No.:

51 9394013 -

002 Palisades Steam Generator Operational Assessment for Cycle 29 Page 1 of 304

framatome 20004-028 (03/26/2024)

Document No.: 51-9394013-002 Palisades Steam Generator Operational Assessment for Cycle 29 Safety Related?

~YES No Does this document establish design or technical requirements?

Does this document contain assumptions requiring verification?

Does this document contain Customer Required Format?

Signature Block Name and Title Signature and Date Role Craig Kelley CJ KELLEY LP Supervisory Engineer 10/6/2025 Chris Guynn CL GUYNN LR Engineer IV 10/6/2025 Wayne Belden WDBELDEN A

Performance Engineering Manager 1 n1~.1?n?c:.

TS-RECTOR -

Scott Rector PM Project Manager 10/6/2025 Role Definitions:

P/R/A designates Preparer (P), Reviewer (R), Approver (A);

LP/LR designates Lead Preparer (LP), Lead Reviewer (LR);

M designates Mentor (M);

PM designates Project Manager (PM)

YES ~NO YES ~NO YES ~NO Scope/Comments All All All Customer Supplied References in Section 9.0.

Page 2

v t e Letter Sequence Supplement
EPID:L-2025-LLA-0036, (Open)
Initiation Request, Request Acceptance Supplement Administration Questions 7 May 2025 30 June 2025 Answers Results Approval, Approval Other: ASLBP 25-988-01-LA-BD01, Notification of Significant Licensing Action, ML25070A153
MONTHYEAR2025-10-07 [Table View]

PNP 2025-071, Third Supplement to Response to Second Request for Additional Information Regarding License Amendment Request to Revise Selected Permanently Defueled Technical Specifications to Support Repairing of Steam Generator Tubes by Sleeving

Text

Subject:

References:

SUMMARY

5.0 BACKGROUND

12.0 REFERENCES

SUMMARY

5.0 BACKGROUND

12.0 REFERENCES

Subject:

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