ML101250532

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Steam Generator Tube Inpsection Report.Turkey Point Unit 4, Steam Generator Tube Inspection Report
ML101250532
Person / Time
Site: Turkey Point NextEra Energy icon.png
Issue date: 04/21/2010
From: Kiley M
Florida Power & Light Co
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
L-2010-075
Download: ML101250532 (23)
v • d • e


Text

APR 2 1 2010 SFPL.POWERING TODAY.EMPOWERING TOMORROW.0 L-201 0-075 10 CFR 50.36 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555-00001 Re: Turkey Point Unit 4 Docket No. 50-251 Steam Generator Tube Inspection Report The attached Turkey Point Unit 4 End of Cycle (EOC) 24 Steam Generator Tube Inspection Report is submitted to NRC in accordance with Turkey Point Technical Specification 6.9.1.8, and within 180 days after the initial entry to MODE 4 following completion of the inspections performed in accordance with Technical Specification 6.8.4.j, Steam Generator (SG) Program.The report includes the following:

a. The scope of inspections performed on each SG, b. Active degradation mechanisms found, c. Nondestructive examination techniques utilized for each degradation mechanism, d. Location, orientation (if linear), and measured sizes (if available) of service induced indications, e. Number of tubes plugged during the inspection outage for each active degradation mechanism, f. Total number and percentage of tubes plugged to date, g. The results of condition monitoring, including the results of tube pulls and in-situ testing, h. The effective plugging percentage for all plugging in each SG, i. The primary to secondary leakage rate observed in each SG during the cycle preceding the inspection which is the subject of the report, j. The calculated accident induced leakage rate from the portion of the tubes below 17.28 inches from the top of the tubesheet for the most limiting accident in the most limiting SG, and k. The results of monitoring for tube axial displacement (slippage).

,4o0(an FPL Group company L-2010-075 Page 2 of 2 Should there be any questions, please contact Robert Tomonto at (305) 246-7327.Sincerely, Michael Kiley Vice President Turkey Point Nuclear Plant Enclosure Attachments cc: Regional Administrator, Region II, USNRC.Senior Resident Inspector, USNRC, Turkey Point Plant L-2010-075 Enclosure 1 Turkey Point Unit 4 Steam Generator Tube Inspection Report Page 1 of 11 Background This report is provided in accordance with Turkey Point Unit 4 Technical Specification 6.9.1.8,"Steam Generator Tube Inspection Report" for the inspection conducted November 5-13, 2009, during the End of Cycle (EOC) 24 refueling outage. The EOC 24 refueling outage was the second refueling outage in the third inspection period (60 EFPM) of the Westinghouse model 44F steam generators (SGs) replaced in April, 1983. The SGs had accumulated 20.37 Effective Full Power Years (EFPY) of operation at the EOC 24. The Steam Generator Tubing Inspection performed during the EOC 24 refueling outage is the only inspection scheduled in the first half of the third inspection period.Following the EOC 24 refueling outage, Turkey Point Unit 4 initially entered HOT SHUTDOWN (Mode 4) on November 24, 2009. Pursuant to Turkey Point Unit 4 Technical Specification 6.9.1.8, this report is required to be submitted to the NRC 180 days after initial entry into MODE 4, or by May 24, 2010.The EOC 24 SG tube inspections were conducted in all three SGs (4A, 4B, & 4C) as described below.a. The scope of inspection performed on each steam generator The scope of this examination is summarized in Table 1 below and is established to meet the following requirements:

a. Technical Specification 6.8.4.j "Steam Generator (SG) Program" b. Steam Generator Management Program: Pressurized Water Reactor Steam Generator Examination Guidelines:

Revision 7. EPRI, Palo Alto, CA: 2007. 1013706.The basis for bobbin and +PointTM tube examinations is given in Table 1.

L-2010-075 Enclosure 1 Turkey Point Unit 4 Steam Generator Tube Inspection Report Page 2 of 11 TABLE 1 BASIS FOR TUBE EXAMINATION SAMPLES Technique Examination Sample Required or Basis Potential Supplemental J Degradation 100% full length in rows 3 and higher. Row 1 & 2 examinations were limited to the hot leg Required(')

Degradation Assessment Wear/and cold leg straight sections.

ODSCC Bobbin Screening of 100% of dings < 5 volts in straight sections (verticals)

Required(')

Degradation Assessment ODSCC This included tubes with low-voltage u-bend offset tubes.100% of the hot leg tubesheet to the extent of TTS + 3.00" to -17.28". Required(')

ENG CSI-2.2, Rev. 31, Foreign Object The hot leg full depth tubesheet examination included two unexpanded tubes in S/G Checklist item 1.D, and the Wear"A" and five unexpanded tubes in S/G "B" identified with previous NTE indications (No Degradation Assessment.

Tube Expansion). (No tubes were identified with NTE indications in S/G "C".)Note: Unexpanded tubes were plugged in accordance with commitments made for license PWSCC amendment 236 (Ref. 1). ODSCC Cold Leg Periphery Expansion Transitions

-+3"/-2" from top of tubesheet.

Required ENG CSI-2.2, Rev. 31, Foreign Object Checklist item 1.D., and the Wear Two outermost peripheral tubes exposed to the annulus, and all open row 1 and 2 tubes in Degradation Assessment.

columns 1-92 completed the periphery examination.

CL full depth tubesheet Required ENG CSI-2.2, Rev. 31, PWSCC One unexpanded tube in S/G "A" and one unexpanded tube in S/G "B" identified with Checklist item 1.D., and the ODSCC previous NTE indications (No Tube Expansion) required a full tubesheet inspection. (No Degradation Assessment.

.+PointTM tubes were identified with NTE indications in S/G "C"). Note: Unexpanded tubes were plugged in accordance with commitments made for license amendment 236 (Ref. 1)., Tight radius u-bends -100% of row 1 and 2 Required(1) Degradation Assessment.

PWSCC ODSCC 100% of hot leg freespan dings > 5 volts between TSH and 06H +1.00". Required(1') Degradation Assessment.

PWSCC ODSCC 100% of u-bend dings Required'1) Degradation Assessment.

PWSCC ODSCC 100% of hot leg dents/dings at structures.

Required(1' Degradation Assessment.

PWSCC ODSCC 1. A 100% sample size is supplemental.

The minimum sample size required by the SG Program is 50%.

L-2010-075 Enclosure 1 Turkey Point Unit 4 Steam Generator Tube Inspection Report Page 3 of 11 b. Active degradation mechanism found The EOC 24 bobbin and +PointTM examination results for Turkey Point Unit 4 identified mechanical wear as an existing degradation mechanism at the following locations:

  • Anti-vibration bar (AVB) contact points in the u-bends" Broached tube support contact points* Flow Baffle Plates No other degradation mechanisms were identified in this inspection.
c. Nondestructive examination techniques utilized for each degradation mechanism TABLE 2 -Turkey Point Unit 4 Examination Techniques for EOC 24 (October 2009)Industry Damage Demonstrated Extended Depth Sizing Site-Specific Review Technique Qualification Mechanism Applicability Applicability Technique Deemed Acceptable Applied Detection Sizing I Bobbin R`vs i1 Thinning Top of Tubesheet Above Tubesheet Differential Mix Yes For Informabon evision 1 and TSP Phase Analysis 96004.1 AV ~s TSPs Differential Mix D oba er Wear None Amplitude Analysis Yes For Service 2 obn Revision 12 Diagonal anclVertical Straps (Using Vert-M~ax) 96004.2 AVBs TSPs Absolute Mix 3 Bobbin Revision 12 Wear Diagonal and Verical Strips None Amplitudte Analysis Yes For Information DS (Using Vert-Max)4 Bobbin 96005.2 Freespan in the Presence of Stuoge Pile Not Sized wito Bobbin Yes For Information Sobbin Revision .Pitting Cooper S gPeN idto n Y Fo__Inormation 24013.5 Bobbin Re4siion 2 ODSCC Dings 5 00 Volts None Not Sized with Bobbin Yes For informarion I.-2bbn Axial ODSC-C Drilled TSP Wit! /Without None Not Sized v.itr Bobbin Yes For Information

__Bobbin Revision 2 Dents < 2.0 Volts 7 Bobbin 1-2B412 Axial ODSCC Freespan None Not Sized sih Bobbin Yes For Information

___________

Revision 2 1-28413 Axial ODSCC Broached TSP, Sludge Pile None Not Sized vitfh Bobbin Yes For Information 8 Bobbin Revision 2 9 Bobbin 27091.2 PLP Wear PLP Wear Part Present NIA Yes N/A Revision 0 Ppart not present)10 +Point" 96511.1V.

2 Revision '/SCC Low Row U-bend None Single Frequency Phase Yes For Informahon 16 Analysis Yes ForInfor__tio Dent, Drngs, Non-Dented Single Frequency Phase I1 +Point- Revision 7 Circ INVSCC Expansion Transition Supporte Structures, Analysis For Inomation___________Tubenfleef nlyi 12 +Point" 2 ri 1i. i Axial PWSCC Expansion Transition Non-Dented Support Single Frequency Phase For Information 12 __Point_ _Revision 8 Structures, Tubesheel Analysis Yes Fo__Information 13 +Point" %,7103.1 Axial PIWSCC Dent Non-Dented Support Single Frequency Phase Yes For Informaton Revision 17 Structures.

Tubesheet Analysis Id 22401.1 Axial ODSCC Dented Support Structures None Single Frequency Phase Yes For Inforration 1 +__Point" Revision 4 Analysis Yes_ _ Fo__nrrntion

,6910.1 Ditferential MiX Amplitude 15 +Point91 Revision 10 Wear Broached TSP None Analysis Yes For Service 15 +Point- Revision 10 (Using, Vertnfax)21998 1 Single Frequency For Service only it 16 +Point Revision 4 Volumetric Freespan None Amplitude Analysis Yes non-corrosion Revision 4_ (Using Peak-Peak) 22042. CircLength Sizing axing 2284273 05rc Dented Support Structures None Len sing Yes For Information 17 +Point"M Revision 5 ODSCC Frorn'To TSP. Freespan, Sludge f8 +Point 21410R V Crc ODSCC Expansion transition Pile. Tubesheet, Dents. Single Frequency Phase Yes For Information Revision 5 Dings, U-bend Analsis Axial / Circ " _ I III'The sizing parameters in EPRI ETSS 21410.1 are equivalent to those listed in EPRI Report TR 107197-PI L-2010-075 Enclosure 1 Turkey Point Unit 4 Steam Generator Tube Inspection Report Page 4 of 11 Table 2 continued Industry Damage Demonstrated Extended Depth Sizing Site-Specific Review Technique Qualification Mechanism Applicability Applicability Technique Deemed Acceptable Applied Detection Sizing Single Frequency 19 9601 1Amplitude Analysis 96PoIn0 Revision 12 Circ PiJvSCC Expansion Trarnion Dents, Dings. Tubesheet Ampitude Bases Yes For Information 19 +ointM Reisio 12 Using Peak-Peak)

Based on _,ix Depth Phase 27901.1 27902.1 27903.1t 27904. PLP Wear Morphology PLP Wear Morphology 20 Pxinf' 279041 PLP Wear Dependent None Dependent Yes For Service 27906.1 (part not present) (pam not present)27907.1 Revision 0 I-28424 21 4Point Revision 2 Axial ODSCC Sludge Pile None Not qualified Yes No 1-28425 Axial ODSCC Freespan, Broached TSP None Not qualified Yes No 22 +Pit" Revision 2 1-28431 None Single Frequency 23 +Point_ _ Revision I Axial ODSCC Sludge Pile Amplitude Analysis No For Information 24-242 Axial ODSCC reespan, Broached TSP None Single Frequency No For Infomatin Revision I Amplitude Analysis No ForInformaton 25 .115 Pancake 21401.1 Axial ODSCC Al Locations except Ubends, None Single Frequency Phase +Point" For Infonrnation Revision 5 Dents, Expansions Analysis Is tte primary delection coil 21402.1 Single Frequency Phase 26 .115 Pancake Revision 5 Circ ODSCC Expansion Transdiion Sludge Pile AnaNsis For Information 27 .115 Pancake 21503.t Axial FWSCC Expanon Transition Sludge Pile Single Frequency Phase +Point", For Information Revision 4 Anaipolsis is the pnrmary 28 .115 Pancake 21504.1 Circ VSCC Expansion Transition Sludge Pile Pha detection coil For Information Revision 4 Analysis 9Freespan in the Presence o Single Frequency In9o only: Use 2- .1r15 Pancake Pitting None Amplitude Analysis 96005.2 for For Informxion Revision 5 Copper (Using Peak-Peak) slude inte 96911.1 Absolute Mix 30 .115 Pancake Wear Broached TSP PLP Wear Amplitude Analysis For Service Revision 9 (Using Vert-Max)*Poinfl'.080 HF 21505. t Single Frequency Phase .+onT 31 .ac0 HFv2sion.

Axial PWSCC Expansion Transition Sludge Pile e na yPhs e is the primary For Information Pancake Revision 3 Anah'sis detection coil 32 .080 HF 21506.1 Single Frequency Phase For Information Pancake Revision 4 Circ AWSCC Expansion Transiton Sludge Pile rnalysis 21409.1 support structures.

Expansion Transition Single Frequency Phase 33visionr4 Axial ODSCC Freespan regionsludge pil e xiansirci S ngl i Yes For Information Revision 4 and tubesheet crevice Axial /Circ" Anal,sis The sizing parameters in EPRI ETSS 21410.1 are equivalent to those listed in EPRI Report TR 107197-P1.

L-2010-075 Enclosure 1 Turkey Point Unit 4 Steam Generator Tube Inspection Report Page 5 of 11 d. Location orientation (if linear) and measured sizes (if available) of service induced indications Please see Attachments 1, 2 & 3 for indication listings for SG 4A, 4B and 4C respectively.

All wear indications are on the outer surface of the tubing and the predominant orientation is axial.e. Number of tubes plugged during the inspection foreach nonconforming condition Table 3 -Turkey point Unit 4 Tube Plug ing EOC 24 Condition SG 4A SG 4B SG 4C Total No Tube Expansion (NTE) for H* 3 6 0 9 criteria (1)Bottom Expansion Transition (BET) 0 1 0 1 for H* criteria (2)Preventative Tube Plug (PTP) for 0 Indication with no qualified sizing technique (3)Total 0 11 (1) Tubes with no tube expansion were determined to represent significant deviations in the location of the bottom of the expansion transition (BET) in accordance with commitment

  1. 2 in FPL letter L-2009-209 dated September 30, 2009 (Ref. 1).(2) SG B R24C1 9 hot leg BET was located 1.07" below the top of tubesheet.

This BET variation was not considered significant, but was conservatively removed from service.(3) Row 33 column 78 in SG 4A was preventively plugged due to the presence of a wear indication associated with the AV3 structure and a coincident dent signal. No qualified sizing technique was available to allow the tube to remain in service.f. Total number and percentage of tubes plugged to date Table 4 Turkey Point Unit 4 Steam Generator Cumulative Tube Plugging Summary EOC 24 SG # Plugged % Plugged 4A 33 1.03%4B 20 0.62%4C 11 0.34%

L-2010-075 Enclosure 1 Turkey Point Unit 4 Steam Generator Tube Inspection Report Page 6 of 11 g. The results of condition monitoring including the results of the tube pulls and in-situ testing All tubes inspected met the tube integrity performance criteria in TS 6.8.4.j.b and condition monitoring requirements.

No tubes required in-situ pressure testing. No tube removal was required.h. The effective plugging percentage for all plugging in each steam generator No tube repair methods (i.e. sleeving) are approved for Turkey Point Unit 4 that would have an effect on the effective plugging percentages.

Therefore, the effective plugging percentage is synonymous with the % Plugged in item f. above.Note: Report items i, j, and k. are applicable following completion of inspections performed through Refueling Outage 25 [EOC 24] at Unit 4 (and any inspections performed in the subsequent operating cycles until the next scheduled inspection).

i. The primary to secondary leakage rate in each SG (if it is not practical to assign the leakage to an individual SG, the entire primary to secondary leakage should be conservatively assumed to be from one SG) during the cycle preceding the inspection which is subject to the report.No primary to secondary leakage was reported during the preceding cycle of operation.
j. The calculated accident induced leakage rate from the portion of the tubes below 17.28 inches from the top of the tubesheet for the most limiting accident in the most limiting SG.In addition, if the calculated accident induced leakage rate from the most limiting SG is less than 1.82 times the maximum operational primary to secondary leakage rate, the report should describe how it was determined, and The accident induced leakage rate from the portion of the tubes below 17.28 inches from the top of the tubesheet is calculated as a ratio of observed normal operating leakage that cannot be attributed to a source other than the tubesheet expansion region. For the operating period preceding the EOC 24 inspection, no operational primary-to-secondary leakage has been observed.

Further, there are no degradation mechanisms that have the potential for leakage.For Turkey Point Unit 4, the maximum operational primary to secondary leakage rate from the portion of the tubes below 17.28 inches from the top of the tubesheet is multiplied by a factor of 1.82 to determine the accident induced leakage. Since no operational primary-to-secondary leakage has been observed, the calculated accident induced leakage rate the portion of the tubes below 17.28 inches from the top of the tubesheet is zero.Therefore, neither the normal operating leakage limit nor the accident induced leakage limits will be challenged during the next operating period.

L-2010-075 Enclosure 1 Turkey Point Unit 4 Steam Generator Tube Inspection Report Page 7 of 11 k. The results of monitoring for tube axial displacement (slippage).

If slippage is discovered, the implications of the discovery and corrective action shall be provided.Monitoring for tube slippage was completed in accordance with commitment

  1. 1 in Ref. 1. No tube slippage was discovered based on the results of the EOC 24 SG inspections.

References

1. FPL Letter L-2009-209 to the US NRC, dated September 30, 2009 "Turkey Points Unit 3 and 4, Docket Nos. 50-250 and 50-251, Response to Request for Additional Information, License Amendment Request for H*: Alternate Repair Criteria for Steam Generator Tubesheet Expansion Region".Abbreviations CSI -Component Support and Inspections SG -Steam Generator ISI -In-service Inspection ECT -Eddy Current Testing NEI -Nuclear Energy Institute EPRI -Electric Power Research Institute Acronyms H/L -Hot Leg C/L -Cold Leg VOL -Volumetric Indication SVI -Single Volumetric Indication PIT -Pit Indication PLP -Possible Loose Part WAR -Mechanical Wear TWD -Through Wall Depth TSH -Tubesheet Hot Leg TEH -Tube End Hot Leg TSC -Tubesheet Cold Leg TEC -Tube End Cold PTP -Preventative Tube Plug L-2010-075 Enclosure 1 Turkey Point Unit 4 Steam Generator Tube Inspection Report Page 8 of 11 ADDITIONAL INFORMATION The following information is included to assist the staff in their review of the information provided in this report. Secondary side maintenance activity information is not required by TS Section 6.9.1.8.However, this information is being provided based on NRC requests for additional information regarding previous reports submitted by FPL in accordance with this specification.

Secondary Side Maintenance Activities Secondary Side Maintenance Activities during the EOC 24 refueling outage include the following:

  • Upper Bundle Flush* Sludge Lance* FOSAR (Foreign Object Search and Retrieval)
  • Upper Bundle and Top Down Inspection in SG 4C Upper bundle flush and sludge lancing was completed in all three steam generators.

The processes recovered 26.5 lbs of sludge from SG 4A, 24.5 lbs from SG 4B and 17.0 lbs from SG 4C. Pre and post bundle flush upper bundle and top down inspections were completed in SG 4C. These inspections showed that the steam generators remain relatively clean with no significant buildup of deposits, and that the support flow holes remain open.Post sludge-lancing FOSAR was performed on all three steam generators.

Foreign objects actively tracked are included in Table 5. Several of the objects in Table 5 are sludge scale or hardened sludge fragments, which are not considered a credible threat to tube integrity, but were investigated and are documented here for completeness.

The objects in Table 5 were evaluated for potential impact on plant operation and tube integrity and were determined to be acceptable for the planned operating period. Foreign objects removed during EOC 24 refueling outage and thus not actively tracked are included in Table 6. No tube degradation was associated with any of the objects in Table 5 and 6.

L-2010-075 Enclosure 1 Turkey Point Unit 4 Steam Generator Tube Inspection Report Page 9 of 11 Table 5 Turkey Point Unit 4 SG Secondary Side Foreign Objects Summary Table (Actively Tracked)Status as of EOC 24 Refueling Outage TP4-23 Location TP4-24 Initial Location Location & TP4-25 Location Item S/G Description And Basis & Basis Basis & Basis 11/09 (11/2006)

(4/20/08)ECT PLP Object Seen by embedded In FOSAR 04/08 Based on 12/09 1/16' x 2" H/L R22/23 046 hard sludge tretrieval review of video, Wire retrieval attempted object not seen.unsuccessful locatin location ECT PLP Object Located in Wire bristle 1/32" x 1" H/L R12/13 C36 embedded In hard sludge imbedded in hard 2. 4A wire coil Previously C38 hard sludge on pile region, no deposit seen by ECT PLP at C36 tube retrieval retrieval FOSAR unsuccessful attempted 11/10/09 Seen by Seen by FOSAR H/L R1 0/11 Seen by FOSAR FOSAR 04/08, 11/10/09 no 3. 4A 1/16" x 2" C76/77 SSI 11/06 Retrieval no retrieval retrieval Weld Rod Report shows attempts attempted, attempted, C75/76 unsuccessful fixed in remains fixed in location location 0.4"dia by Seen by FOSAR 0.13" 11/10/09 4. 4A Metal snap C45/46 N/A N/A Wedged tightly.shaped Retrieval object Unsuccessful PLP Small hard Visual confirmed 5. 4A Sal H/L R20 C36 N/A N/A 11/09. Retrieval pile not possible.Long rod PLP shaped Visual confirmed 6. 4A 1 "x 0.1" H/L R22 C44 N/A N/A 11/09. Retrieval-2" above not possible.tubesheet PLP Adhered Visual confirmed 7. 4A Ahrd H/L R34 C62 N/A N/A Vsa ofre tube scale 11/09. Retrieval not possible.

L-2010-075 Enclosure 1 Turkey Point Unit 4 Steam Generator Tube Inspection Report Page 10 of 11 Table 5 (continued)

Turkey Point Unit 4 SG Secondary Side Foreign Objects Summary Table (Actively Tracked)Status as of EOC 24 Refueling Outage TP4-23 Location TP4-24 Item SG Descript Initial Location Basis Location & TP4-25 Location And Basis &1Basis)Basis

& Basis 11/09 (11/2006)

(4/20/08)-0.25" PLP irregular Visual confirmed 8. 4B round H/L R13 C76 N/A N/A 11/09. Retrieval Sludge not possible.Rock Hard H/L R1 7 PLP 9. 4B Hard H/l R 7 N/A N/A Visual confirmed sludge pile C 42-58 11/09.PLP-0.5 x -Visual confirmed 10. 4B 0.25 H/L R23 C 58 N/A N/A 11/09 object rectangular wedged tightly.sludge rock Retrieval unsuccessful.

0.1" x 0. 15" PLP x 0.5" ECT verified Visual confirmed x 0.5" 11. 4C oblong H/L R 20/21 presence ECT Skip 11/09 object metallic C 47 Based on look Cycle wedged tightly.object back Retrieval obect_ _unsuccessful.

PLP Wedge Visual confirmed shaped 1/9ojc 12. 4C sludge rock H/L R24 C33 N/A N/A 11/09 object 0.1 x0.3 xwedged tightly.0.1 x 0.3 x Retrieval 1.5"____ ____ _________

____________

_____________unsuccessful.

L-2010-075 Enclosure 1 Turkey Point Unit 4 Steam Generator Tube Inspection Report Page 11 of 11 Table 6 Turkey Point Unit 4 SG Secondary Side Foreign Objects Removed during EOC 24 Refueling Outage Initial Location TP4-25 Location & Basis Item S/G Description And Basis 11/09 3"x .03" dia. H/L Annulus Seen by FOSAR 11/10/09 wire Around R 45 Retrieved H/L Annulus Seen by FOSAR 11/10/09 Around R 45 Retrieved 0.150" by 0.010" C/L Annulus Seen by FOSAR 11/10/09 3 4A by 3" Retrieved Flex Gasket-4" x -.125" dia. Seen by FOSAR 11/10/09 4 4B Non ferretic steel H/L Annulus Retrieved rod, possibly Around R 45 tooling steel-1.25" x Seen by FOSAR 11/10/09 5 4B 0.0625"dia.

H/L R36 C51 Retrieved magnetic rod shaped object L-2010-075 Attachment 1 to Enclosure 1 Turkey Point Unit 4 Steam Generator 4A Tube Inspection Report Page 1 of 3 SG 4A Indication Listings Listing Description Page No.Tubes Plugged Listing 2 Bobbin WEAR at AVB locations 20-1 00%TWD 2 Bobbin WEAR at AVB locations 1-19% TVVD 2 WEAR (WAR) sized by +PointTM probe 1-100% (Broach/Baffle) 3 WEAR (WAR) sized by +PointTM probe 1-100% (AVB) 3 L-2010-075 Attachment 1 to Enclosure 1 Turkey Point Unit 4 Steam Generator 4A Tube Inspection Report Turkey Point Unit 4 (EOC-24)SG 4A Tubes Plugged Listing 11/09 -EOC24 EOC24 ECT Results for Tubes Repaired by Plugging Page 2 of 3 ROW COL VOLTS DEG CHN IND %TW LOCATION EXT EXT UTIL 1 UTIL 2 CAL # LEG PROBE 5 4 PTP 2.99 26 2 NTE TEH TEC TEH TEC 2 COLD 720UL 2 COLD 720UL TSC +0.00 18 44 PTP TEH TEC 3 COLD 720UL 2.63 38 2 NTE TSH +0.00 TEH TEC 3 COLD 720UL 23 62 3.74 219 2 NTE TSH +0.00 TEH TEC 12 COLD 720UL PTP TEH TEC 12 COLD 720UL 33 78 0.62 123 P5 WAR AV3 +0.05 AV3 AV3 34 96910.1 57 HOT 6801P 0 P5 CLP AV3 +0.05 AV3 AV3 0.48 0.46 57 HOT 6801P 0.73 149 P1 DSI AV3 -0.02 TEH TEC LAR 11 COLD 720UL PTP TEH TEC 11 COLD 720UL 2.52 177 P1 DNG AV3 -0.15 TEH TEC 11 COLD 720UL Total Tubes : 4 Note: Tubes with No Tube Expansion (NTE) were plugged in accordance with commitments made for license amendment 226. For tubes identified with "WAR" in the "IND" column, the %TW depth is identified in the Util 1 field.Turkey Point Unit 4 (EOC-24)SG 4A 11/09 -EOC24 Bobbin WAR at AVB's 20-100%TWD ROW COL VOLTS DEG CHN IND %TW LOCATION EXT EXT UTIL 1 UTIL 2 CAL # LEG PROBE Total Tubes : 0 Total Records: 0 No indications reported in this range Turkey Point Unit 4 (EOC-24)SG 4A 11/09 -EOC24 Bobbin WAR at AVB's 1-19%TWD ROW COL VOLTS DEG CHN IND %TW LOCATION EXT EXT UTIL 1 UTIL 2 CAL # LEG 26 20 0.22 32 74 0.39 0.38 33 72 0.59 35 67 0.37 37 65 0.63 0.48 0.73 Total Tubes : 5 Total Records: 8 94 112 26 68 104 58 116 70 P2 P2 P2 P2 P2 P2 P2 P2 TWD TWD TWD TWD TWD TWD TWD TWD 10 14 13 18 10 15 12 17 AVl AVl AV2 AVl AV4 AV2 AV3 AV4+0.37+0.08+0.06+0.08-0.19+0.06+0.32-0.06 TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC 6 12 12 12 11 11 11 11 COLD COLD COLD COLD COLD COLD COLD COLD PROBE 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL L-2010-075 Attachment 1 to Enclosure 1 Turkey Point Unit 4 Steam Generator 4A Tube Inspection Report Page 3 of 3 Turkey Point Unit 4 (EOC-24)SG 4A 11/09 -EOC24+PointTM WAR at Supports (Broach supports and Baffle plates)ROW 4 13 39 COL VOLTS DEG CHN IND %TW LOCATION 58 0.20 112 P5 WAR 02H +0.47 4 0.35 90 P5 WAR BAH -0.27 28 0.12 105 P5 WAR BAH +0.12 EXT EXT UTIL 1 UTIL 2 CAL # LEG 02H 02H 12 96910.1 44 HOT BAH BAH 18 96910.1 44 HOT BAH BAH 8 96910.1 44 HOT PROBE 680PP 680PP 680PP Total Tubes : 3 Total Records: 3 Notes: The qualified EPRI sizing technique used for depth estimates is identified in the Util 2 field.For tubes identified with "WAR" in the "IND" column, the %TW depth is identified in the Util 1 field.11/09 -EOC24+PointTM WAR at AVI~s ROW COL VOLTS DEG CHN IND %TW LOCATION EXT EXT UTIL 1 UTIL 2 CAL # LEG PROBE 6801P 33 78 0.62 123 P5 WAR AV3 +0.05 AV3 AV3 34 96910.1 57 HOT Total Tubes : 1 Total Records: 1 Notes: The qualified EPRI sizing technique used for depth estimates is identified in the Util 2 field.For tubes identified with "WAR" in the "IND" column, the %TW depth is identified in the Util 1 field.Tube R33 C78 was repaired because the indication was coincident with a ding.

L-2010-075 Attachment 2 to Enclosure 1 Turkey Point Unit 4 Steam Generator 4B Tube Inspection Report Page 1 of 4 SG 4B Indication Listings Listing Description Page No.Tubes Plugged Listing 2 Bobbin WEAR at AVB locations 20-100%TWD 2 Bobbin WEAR at AVB locations 1-19% TWD 3 WEAR (WAR) sized by +PointTM probe 1-100% (Broach/Baffle) 3 WEAR (WAR) sized by +PointTM probe 1-100% (AVB) 4 L-2010-075 Attachment 2 to Enclosure 1 Turkey Point Unit 4 Steam Generator 4B Tube Inspection Report~, Page 2 of 4;2~4-.7~Turkey Point Unit 4 (EOC-24)SG 4B Tubes Plugged Listing 11/09 -EOC24 EOC24 ECT Results for Tubes Repaired by Plugging ROW COL VOLTS DEG CHN IN]D %TW LOCATION 5 66 3.39 230 2 NTE PTP TSH +0.00 EXT EXT TEH TEC TEH TEC UTIL 1 UTIL 2 CAL # LEG 17 COLD 17 COLD PROBE 720UL 720UL 9 12 7.38 199 2 NTE TSH +0.00 TEH TEC 9 COLD 720UL PTP TEH TEC 9 COLD 720UL 10 67 4.27 217 2 NTE PTP 12 39 5.10 224 2 NTE PTP TSH +0.00 TEH TEC 17 COLD 720UL TEH TEC 17 COLD 720UL TSH +0.00 TEH TEC TEH TEC 23 12 3.24 24 2 NTE TSC +0.00 TEH TEC PTP TEH TEC PTP TEH TEC 2 PID TEH +1.00 TO+21.79 TEH TEC HI 27 COLD 720UL 27 COLD 720UL 1 COLD 720UL 1 COLD 720UL 2 COLD 720UL 2 COLD 720UL 24 19 55.38 191 31 37 3.74 219 2 NTE PTP TSH +0.00 TEN TEC 8 COLD 720UL TEH TEC 8 COLD 720UL Total Tubes : 7 Note: Tube R24 C19 was preventively plugged due to the presence of a larger than optimum crevice of 1.07" (Bottom of Expansion Transition, BET). Tubes with No Tube Expansion (NTE) were plugged in accordance with commitments made for license amendment 226.Turkey Point Unit 4 (EOC-24)SG 4B 11/09 -EOC24 Bobbin WAR at AVB's 20-100%TWD ROW COL VOLTS DEG CHN IND %TW LOCATION EXT EXT UTIL 1 UTIL 2 CAL # LEG PROBE Total Tubes : 0 Total Records: 0 No indications were reported in this range.

L-2010-075 Attachment 2 to Enclosure 1 Turkey Point Unit.4 Steam Generator 4B Tube Inspection Report Z, -Turkey Point Unit 4 (EOC-24)SG 4B 1 3" 11/09 -EOC24 Bobbin WAR at AVB's 1-19%TWD Page 3 of 4 ROW COL VOLTS DEG CHN IND %TW LOCATION EXT EXT UTIL 21 6 0.34 57 P2 TWD 23 50 0.31 54 P2 TWD 27 72 0.44 69 P2 TWD 0.40 102 P2 TWD 27 82 0.33 62 P2 TWD 30 65 0.53 108 P2 TWD 30 73 0.44 98 P2 TWO 0.35 122 P2 TWO 0.35 79 P2 TWD 31 13 0.35 99 P2 TWD 33 16 0.36 118 P2 TWD 33 62 0.36 121 P2 TWD 34 46 0.52 121 P2 TWD 0.40 30 P2 TWD 35 54 0.51 72 P2 TWD 38 58 0.40 117 P2 TWD 9 9 12 11 10 14 12 10 10 9 10 11 13 11 14 11 AV3 AV3 AV2 AVI AV4 AV2 AV4 AV3 AV2 AV4 AV4 AV2 AV2 AV2 AV3 AV3+0.00-0.09+0.11+0.00+0.17+0.39-0.15+0.02+0.00+0.02+0.00-0.30-0.43+0.64+0.24+0.32 TEH TEH TEH TEH TEH TEH TEH TEH TEH TEH TEH TEH TEH TEH TEH TEH TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC I UTIL 2 CAL #1 12 16 16 16 14 16 16 16 1 1 14 9 9 12 14 LEG COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD PROBE 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL Total Tubes : 12 Total Records: 16 Turkey Point Unit 4 (EOC-24)SG 4B 11/09 -EOC24+PointTM WAR at Supports (Broached support and Baffle Plates)ROW COL VOLTS 5 31 35 40 44 12 60 70 26 38 0.31 0.46 0.26 0.14 0.20 0.32 DEG 65 125 103 96 88 99 CHN IND %TW LOCATION P5 WAR 04H +0.50 P5 WAR 02H -0.27 P5 WAR BAH -0.36 P5 WAR BAH +0.02 P5 WAR BAH -0.31 P5 WAR 04C +0.58 04H 02H TSH TSH TSH 04C EXT EXT UTIL 04H 02H BAH 01H 01H 04C 10 16 10 6 8 14 1 UTIL 2 96910.1 96910.1 96910.1 96910.1 96910.1 96910.1 CAL # LEG 53 HOT 53 HOT 53 HOT 53 HOT 53 HOT 58 COLD PROBE 680PP 680PP 680PP 680PP 680PP 680PP Total Tubes : 5 Total Records: 6 Note: The qualified EPRI sizing technique used for depth estimates is identified in the Util 2 field. For tubes identified with "WAR" in the "IND" column, the %TW depth is identified in the Util 1 field.

L-20, Turkey Point OUi Turkey Point Unit 4 (EOC-24). , 4 SG 4B 11/09 -EOC24 ire 1 ispection Report Page 4 of 4:w~w,~4 ~2,. ~+PointTM WAR at AVBs ROW COL VOLTS DEG CHN IND1 %TW LOCATION EXT EXT UTIL 1 UTIL 2 CAL # LEG PROBE Total Tubes : 0 Total Records: 0 No wear indications were reported at the Anti-vibration Bars with +Point T M Turkey Point closure 1 ul:e Inspection Report Page 1 of 3 SG 4C Indication Listings Listing Description Page No.Tubes Plugged Listing 2 Bobbin WEAR at AVB locations 20-1 00%TWD 2 Bobbin WEAR at AVB locations 1-19% TWD 2 WEAR (WAR) sized by +PointTM probe 1-100% (Broach/Baffle) 3 WEAR (WAR) sized by +PointTM probe 1-100% (AVB) 3 Turkey Point,!Turkey Point Unit 4 (EOC-24)SG 4C Tubes Plugged Listing losure 1 ie[nspection Report Page 2 of 3 No tubes were plugged in SG 4C Turkey Point Unit 4 (EOC-24)SG 4C 11/09 -EOC24 Bobbin WAR at AVB's 20-100%TWD ROW COL VOLTS 32 70 0.70 35 31 0.77 DEG CHN IND %TW LOCATION 112 P2 TWD 22 AVI +0.28 103 P2 TWD 22 AV2 +0.32 EXT EXT UTIL 1 TEH TEC TEH TEC UTIL 2 CAL # LEG PROBE 16 COLD 720UL 3 COLD 720UL Total Tubes : 2 Total Records: 2 Turkey Point Unit 4 (EOC-24)SG 4C 11/09 -EOC24 Bobbin WAR at AVB's 1-19%TWD ROW 12 13 22 22 22 24 26 27 27 30 30 31 32 32 33 34 34 34 36 37 37 39 40 COL 4 4 7 82 83 12 82 80 81 15 75 80 16 70 76 17 53 75 74 71 73 69 68 VOLTS DEG CHN IND 0.24 62 P2 TWD 0.34 130 P2 TWD 0.30 140 P2 TWD 0.22 107 P2 TWD 0.25 93 P2 TWD 0.31 76 P2 TWD 0.31 20 P2 TWD 0.30 98 P2 TWD 0.28 107 P2 TWD 0.31 94 P2 TWD 0.29 132 P2 TWD 0.25 103 P2 TWD 0.29 17 P2 TWD 0.47 46 P2 TWD 0.40 134 P2 TWD 0.28 76 P2 TWD 0.31 59 P2 TWD 0.25 148 P2 TWD 0.31 105 P2 TWD 0.20 21 P2 TWD 0.19 120 P2 TWD 0.23 90 P2 TWD 0.24 49 P2 TWD 0.14 51 P2 TWD%TW 10 15 12 9 9 14 12 12 11 12 13 12 11 19 14 13 11 11 14 8 8 9 10 6 LOCATION AV4 AV4 AV2 AVI AV4 AV4 AVI AV3 AVI AV4 AVI AV2 AV3 AV2 AV3 AVl AVI AV1 AV4 AV3 AVl AV3 AV2 AV2+0.13+0.17+0.02+0.30-0.08+0.00+0.15-0.11+0.17+0.00+0.00+0.41+0.17+0.09-0.06+0.17-0.08-0.17+0.00-0.02+0.13-0.30-0.11-0.26 EXT TEN TEH TEH TEH TEH TEH TEH TEH TEH TEH TEH TEH TEH TEH TEH TEH TEH TEH TEH TEH TEH TEH TEH TEH EXT UTIL 1 TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC UTIL 2 CAL #1 2 1 16 18 2 16 16 16 16 2 15 14 2 16 15 3 13 15 14 16 14 16 16 LEG COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD PROBE 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL Total Tubes : 23 Total Records: 24 Turkey P " i 4 Sta G...Turkey Point Unit 4 (EOC-24)4 ..SG 4C 11/09 -EOC24+PointTM WAR at Supports (Broach support and Baffle Plate)Report Page 3 of 3~p -p~u~.ROW COL VOLTS DEG CHN IND %TW LOCATION 35 75 0.23 99 P5 WAR 06H +0.23 EXT EXT UTIL 1 UTIL 2 CAL # LEG 06H 06H 10 96910.1 55 HOT PROBE 680PP Total Tubes : 1 Total Records: 1 Note: The qualified EPRI sizing technique used for depth estimates is identified in the Util 2 field. For tubes identified with 'WAR" in the "IND" column, the %TW depth is identified in the Util 1 field.Turkey Point Unit 4 (EOC-24)SG 4C 11/09 -EOC24+Point" WAR at AVBs ROW COL VOLTS DEG CHN IND %TW LOCATION EXT EXT UTIL 1 UTIL 2 CAL # LEG PROBE Total Tubes : 0 Total Records: 0 No wear indications were reported at the Anti-vibration Bars with +PointTM

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