L-2010-075, Steam Generator Tube Inpsection Report.Turkey Point Unit 4, Steam Generator Tube Inspection Report

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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 1 Required' ) Degradation Assessment. PWSCC ODSCC 100% of hot leg dents/dings at structures. 1 Required( ' 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 IBobbin R`vs i1 Thinning Top of Tubesheet Above Tubesheet Differential Mix Yes ForInformabon evision 1 and TSP Phase Analysis 2 obn 96004.112 Revision Wear AV D obaanclVertical Diagonal

~s TSPs er Straps None Differential Mix Amplitude Analysis Yes For Service (Using Vert-M~ax) 96004.212 AVBs TSPs Absolute Mix 3 Bobbin Revision 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 NotSizedwitoBobbin Yes ForInformation Sobbin Revision . Pitting Cooper S gPeN idto n Y Fo__Inormation 24013.

5 Bobbin Re4siion 2 ODSCC Frees*nn Dings 5 00 Volts None Not Sized withBobbin Yes For informarion I.-2bbn AxialODSC-C DrilledTSP Wit! /Without None Not Sized v.itr Bobbin Yes For Information

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

___________ Revision 2 8 Bobbin 1-28413 2 Revision AxialODSCC Broached TSP, Sludge Pile None Not Sized vitfhBobbin Yes For Information 9 Bobbin 27091.2 PLP Wear PLP Wear Part Present NIA Yes N/A Revision 0 Ppart not present) 10 +Point"'/SCC 96511.1V.2 Revision Low Row U-bend None Single Frequency Phase Yes ForInformahon 16 Analysis Yes ForInfor__tio Dent, Drngs, Non-Dented Single Frequency Phase I1 +Point- Revision 7 CircINVSCC Expansion Transition Supporte Structures, Analysis For Inomation

___________Tubenfleef nlyi 2

12 12__Point_

+Point" ri 1i.

i 8 AxialPWSCC Expansion Transition Non-Dented Support Single Frequency Phase For Information

_Revision Structures, Tubesheel Analysis Yes Fo__Information 13 +Point"  %,7103.1 AxialPIWSCC Dent Non-Dented Support Single Frequency Phase Yes For Informaton Revision 17 Structures. Tubesheet Analysis Id 22401.1 AxialODSCC Dented Support Structures None Single Frequency Phase Yes ForInforration 1 +__Point" Revision 4 Analysis Yes_ _ Fo__nrrntion

,6910.1 Ditferential MiXAmplitude 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 17 +Point"M 2284273 5 Revision 05rc ODSCC Dented Support Structures None LenFrorn'Tosing Yes For Information TSP. Freespan, Sludge f8 +Point 21410R Revision V5 Crc ODSCC Expansion transition Pile. Dings, Tubesheet, Dents.

U-bend Single Frequency Analsis Phase Yes For Information 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 19 1Amplitude 9601 Single Frequency Analysis Revision 96PoIn0 12 19 +ointM 12 ReisioCirc PiJvSCC Expansion Trarnion Dents, Dings. Tubesheet Ampitude Using Peak-Peak) Based Bases Yes For Information 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 AxialODSCC Sludge Pile None Not qualified Yes No 22 +Pit" 1-28425 2 Revision Axial ODSCC Freespan, Broached TSP None Not qualified Yes No 23 +Point_ _

1-28431 Revision I AxialODSCC Sludge Pile None Single Frequency Amplitude Analysis No For Information 24-242 Revision I Axial ODSCC reespan, Broached TSP None Single Frequency Amplitude Analysis No No For Infomatin ForInformaton 25 .115 Pancake 21401.1 Axial ODSCC Al Locations except Ubends, None Single Frequency Phase +Point" For Infonrnation Revision 5 Dents, Expansions Analysis Istte 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 inthe Presence o Single Frequency In9o only: Use 2- .1r15Pancake Pitting None Amplitude Analysis 96005.2 for ForInformxion 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' t Single Frequency Phase .+onT 31 .080

.ac0 HFv2sion. 21505.

HF Axial PWSCC Expansion Transition Sludge Pile e Anah'sis na yPhs e is the primary For Information Pancake Revision 3 detection coil 32 .080 HF Pancake 21506.1 4 Revision Circ Expansion Transiton Sludge Pile Single Frequency rnalysis Phase AWSCC ForInformation 21409.1 support structures. pil e Expansion Transition Single Frequency Phase 33visionr4 Revision 4 Axial ODSCC Freespan regionsludge and tubesheet crevice xiansirci Axial/Circ" S ngl Anal,sisi Yes ForInformation The sizing parameters inEPRI ETSS 21410.1 are equivalent to those listed inEPRI 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 (3) technique 0 11 Total (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 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' Wirex 2" H/L R22/23 046 hard sludge retrieval tretrieval attempted review of video, 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 4A 1/16" x 2" C76/77 SSI 11/06 Retrieval no retrieval retrieval 3.

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 N/A N/A Visual confirmed Vsa ofre

7. 4A Ahrd H/L R34 C62 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.

back Retrieval object 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 Page 2 of 3 Turkey Point Unit 4 (EOC-24)

SG 4A Tubes Plugged Listing 11/09 - EOC24 EOC24 ECT Results for Tubes Repaired by Plugging ROW COL VOLTS DEG CHN IND %TW LOCATION EXT EXT UTIL 1 UTIL 2 CAL # LEG PROBE 5 4 PTP TEH TEC 2 COLD 720UL 2.99 26 2 NTE TSC +0.00 TEH TEC 2 COLD 720UL 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 No indications reported in this range Total Records: 0 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 PROBE 26 20 0.22 94 P2 TWD 10 AVl +0.37 TEH TEC 6 COLD 720UL 32 74 0.39 112 P2 TWD 14 AVl +0.08 TEH TEC 12 COLD 720UL 0.38 26 P2 TWD 13 AV2 +0.06 TEH TEC 12 COLD 720UL 33 72 0.59 68 P2 TWD 18 AVl +0.08 TEH TEC 12 COLD 720UL 35 67 0.37 104 P2 TWD 10 AV4 -0.19 TEH TEC 11 COLD 720UL 37 65 0.63 58 P2 TWD 15 AV2 +0.06 TEH TEC 11 COLD 720UL 0.48 116 P2 TWD 12 AV3 +0.32 TEH TEC 11 COLD 720UL 0.73 70 P2 TWD 17 AV4 -0.06 TEH TEC 11 COLD 720UL Total Tubes  : 5 Total Records: 8

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 COL VOLTS DEG CHN IND %TW LOCATION EXT EXT UTIL 1 UTIL 2 CAL # LEG PROBE 4 58 0.20 112 P5 WAR 02H +0.47 02H 02H 12 96910.1 44 HOT 680PP 13 4 0.35 90 P5 WAR BAH -0.27 BAH BAH 18 96910.1 44 HOT 680PP 39 28 0.12 105 P5 WAR BAH +0.12 BAH BAH 8 96910.1 44 HOT 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 33 78 0.62 123 P5 WAR AV3 +0.05 AV3 AV3 34 96910.1 57 HOT 6801P 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

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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 EXT EXT UTIL 1 UTIL 2 CAL # LEG PROBE 5 66 3.39 230 2 NTE TSH +0.00 TEH TEC 17 COLD 720UL PTP TEH TEC 17 COLD 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 TSH +0.00 TEH TEC 17 COLD 720UL PTP TEH TEC 17 COLD 720UL 12 39 5.10 224 2 NTE TSH +0.00 TEH TEC 27 COLD 720UL PTP TEH TEC 27 COLD 720UL 1 COLD 720UL 23 12 3.24 24 2 NTE TSC +0.00 TEH TEC 1 COLD 720UL PTP TEH TEC 2 COLD 720UL 24 19 PTP TEH TEC 2 COLD 720UL 55.38 191 2 PID TEH +1.00 TO+21.79 TEH TEC HI TEN TEC 8 COLD 720UL 31 37 3.74 219 2 NTE TSH +0.00 TEH TEC 8 COLD 720UL PTP 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 No indications were reported in this range.

Total Records: 0

L-2010-075 Attachment 2 to Enclosure 1 Turkey Point Unit.4 Steam Generator 4B Tube Inspection Report Page 3 of 4 Z, -

Turkey Point Unit 4 (EOC-24)

SG 4B 13" 11/09 - EOC24 Bobbin WAR at AVB's 1-19%TWD ROW COL VOLTS DEG CHN IND %TW LOCATION EXT EXT UTIL I UTIL 2 CAL # LEG PROBE 21 6 0.34 57 P2 TWD 9 AV3 +0.00 TEH TEC 1 COLD 720UL 23 50 0.31 54 P2 TWD 9 AV3 -0.09 TEH TEC 12 COLD 720UL 27 72 0.44 69 P2 TWD 12 AV2 +0.11 TEH TEC 16 COLD 720UL 0.40 102 P2 TWD 11 AVI +0.00 TEH TEC 16 COLD 720UL 27 82 0.33 62 P2 TWD 10 AV4 +0.17 TEH TEC 16 COLD 720UL 30 65 0.53 108 P2 TWD 14 AV2 +0.39 TEH TEC 14 COLD 720UL 30 73 0.44 98 P2 TWO 12 AV4 -0.15 TEH TEC 16 COLD 720UL 0.35 122 P2 TWO 10 AV3 +0.02 TEH TEC 16 COLD 720UL 0.35 79 P2 TWD 10 AV2 +0.00 TEH TEC 16 COLD 720UL 31 13 0.35 99 P2 TWD 9 AV4 +0.02 TEH TEC 1 COLD 720UL 33 16 0.36 118 P2 TWD 10 AV4 +0.00 TEH TEC 1 COLD 720UL 33 62 0.36 121 P2 TWD 11 AV2 -0.30 TEH TEC 14 COLD 720UL 34 46 0.52 121 P2 TWD 13 AV2 -0.43 TEH TEC 9 COLD 720UL 11 AV2 +0.64 TEH TEC 9 COLD 720UL 0.40 30 P2 TWD 35 54 0.51 72 P2 TWD 14 AV3 +0.24 TEH TEC 12 COLD 720UL 38 58 0.40 117 P2 TWD 11 AV3 +0.32 TEH TEC 14 COLD 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 DEG CHN IND %TW LOCATION EXT EXT UTIL 1 UTIL 2 CAL # LEG PROBE 5 12 0.31 65 P5 WAR 04H +0.50 04H 04H 10 96910.1 53 HOT 680PP 31 60 0.46 125 P5 WAR 02H -0.27 02H 02H 16 96910.1 53 HOT 680PP 35 70 0.26 103 P5 WAR BAH -0.36 TSH BAH 10 96910.1 53 HOT 680PP 40 26 0.14 96 P5 WAR BAH +0.02 TSH 01H 6 96910.1 53 HOT 680PP 0.20 88 P5 WAR BAH -0.31 TSH 01H 8 96910.1 53 HOT 680PP 44 38 0.32 99 P5 WAR 04C +0.58 04C 04C 14 96910.1 58 COLD 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, ire 1 Turkey Point OUi ispection Report Page 4 of 4 Turkey Point Unit 4 (EOC-24). ,4 SG 4B :w~w,~ 4 ~

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11/09 - EOC24

+PointTM WAR at AVBs ROW COL VOLTS DEG CHN IND1 %TW LOCATION EXT EXT UTIL 1 UTIL 2 CAL # LEG PROBE TM Total Tubes  : 0 No wear indications were reported at the Anti-vibration Bars with +Point Total Records: 0

closure 1 Turkey Point 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

losure 1 Turkey Point,! ie[nspection Report Page 2 of 3 Turkey Point Unit 4 (EOC-24)

SG 4C Tubes Plugged Listing 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 DEG CHN IND %TW LOCATION EXT EXT UTIL 1 UTIL 2 CAL # LEG PROBE 32 70 0.70 112 P2 TWD 22 AVI +0.28 TEH TEC 16 COLD 720UL 35 31 0.77 103 P2 TWD 22 AV2 +0.32 TEH TEC 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 COL VOLTS DEG CHN IND %TW LOCATION EXT EXT UTIL 1 UTIL 2 CAL # LEG PROBE 10 AV4 TEN TEC 1 720UL 12 4 0.24 62 P2 TWD +0.13 COLD 13 4 0.34 130 P2 TWD 15 AV4 +0.17 TEH TEC 2 COLD 720UL 22 7 0.30 140 P2 TWD 12 AV2 +0.02 TEH TEC 1 COLD 720UL 22 82 0.22 107 P2 TWD 9 AVI +0.30 TEH TEC 16 COLD 720UL 22 83 0.25 93 P2 TWD 9 AV4 -0.08 TEH TEC 18 COLD 720UL 24 12 0.31 76 P2 TWD 14 AV4 +0.00 TEH TEC 2 COLD 720UL 26 82 0.31 20 P2 TWD 12 AVI +0.15 TEH TEC 16 COLD 720UL 27 80 0.30 98 P2 TWD 12 AV3 -0.11 TEH TEC 16 COLD 720UL 27 81 0.28 107 P2 TWD 11 AVI +0.17 TEH TEC 16 COLD 720UL 0.31 94 P2 TWD 12 AV4 +0.00 TEH TEC 16 COLD 720UL 30 15 0.29 132 P2 TWD 13 AVI +0.00 TEH TEC 2 COLD 720UL 30 75 0.25 103 P2 TWD 12 AV2 +0.41 TEH TEC 15 COLD 720UL 31 80 0.29 17 P2 TWD 11 AV3 +0.17 TEH TEC 14 COLD 720UL 32 16 0.47 46 P2 TWD 19 AV2 +0.09 TEH TEC 2 COLD 720UL 32 70 0.40 134 P2 TWD 14 AV3 -0.06 TEH TEC 16 COLD 720UL 33 76 0.28 76 P2 TWD 13 AVl +0.17 TEH TEC 15 COLD 720UL 34 17 0.31 59 P2 TWD 11 AVI -0.08 TEH TEC 3 COLD 720UL 34 53 0.25 148 P2 TWD 11 AV1 -0.17 TEH TEC 13 COLD 720UL 34 75 0.31 105 P2 TWD 14 AV4 +0.00 TEH TEC 15 COLD 720UL 36 74 0.20 21 P2 TWD 8 AV3 -0.02 TEH TEC 14 COLD 720UL 37 71 0.19 120 P2 TWD 8 AVl +0.13 TEH TEC 16 COLD 720UL 37 73 0.23 90 P2 TWD 9 AV3 -0.30 TEH TEC 14 COLD 720UL 39 69 0.24 49 P2 TWD 10 AV2 -0.11 TEH TEC 16 COLD 720UL 40 68 0.14 51 P2 TWD 6 AV2 -0.26 TEH TEC 16 COLD 720UL Total Tubes  : 23 Total Records: 24

Turkey P " i 4 Sta G... Report Page 3 of 3 Turkey Point Unit 4 (EOC-24) 4 ..

SG 4C ~p -p~u~.

11/09 - EOC24

+PointTM WAR at Supports (Broach support and Baffle Plate)

ROW COL VOLTS DEG CHN IND %TW LOCATION EXT EXT UTIL 1 UTIL 2 CAL # LEG PROBE 35 75 0.23 99 P5 WAR 06H +0.23 06H 06H 10 96910.1 55 HOT 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 No wear indications were reported at the Anti-vibration Bars with +PointTM Total Records: 0

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