L-2008-041, Steam Generator Tube Inspection Report

Steam Generator Tube Inspection Report

ML081050248
Person / Time
Site:	Turkey Point
Issue date:	04/03/2008
From:	Jefferson W Florida Power & Light Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
L-2008-041
Download: ML081050248 (17)

Text

0 L-2008-041 IPL.

10 CFR 50.36 POWERING TODAY.

EMPOWERING TOMORROW.

U. S. Nuclear Regulatory Commission APR 0 3 2008 Attn: Document Control Desk Washington, D.C. 20555-00001 Re:

Turkey Point Unit 3 Docket No. 50-250 Steam Generator Tube Inspection Report The attached Turkey Point Unit 3 End of Cycle (EOC) 22 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 to 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, and

h. The effective plugging percentage for all plugging in each SG.

Should there be any questions, please contact Paul Infanger at (305) 246-6632.

Vice resident Turkey Point Nuclear Plant SM Attachment cc:

Regional Administrator, Region II, USNRC.

Senior Resident Inspector, USNRC, Turkey Point Plant 4oo an FPL Group company

L-2008-041 Attachment Turkey Point Unit 3 EOC 22 Steam Generator Tube Inspection Report

Turkey Point Unit 3 EOC 22 Page 1 of 15 Steam Generator Tube Inspection Report Turkey Point Technical Specification 6.9.1.8

a. The scope of inspection performed on each SG Turkey Point Unit 3 has three Westinghouse Model 44F replacement steam generators that were installed in 1982. The EOC 22 examination was the fourteenth scheduled in-service examination of the replacement steam generators, and completes fifteen plant cycles since replacement. The tube inspection was completed between September 12 and September 19, 2007. The initial entry in to Mode 4 was on October 9, 2007. The eddy current examination completed during the EOC 22 refueling outage consisted of:

Bobbin coil examination Full length examination of all active tubes in Rows 3 and greater.

Examination of the cold and hot leg straight lengths of tubes in Rows 1 and 2 from the tubesheet entry to the highest support plate.

Screening of 100% of dings < 5 volts in the straight sections.

Plus Point probe (+PointTM ) examination Hot leg tube expansion transitions - Examination of 100% of active hot leg tube expansion transitions over the extent of 17 inches below to 3 inches above the secondary face of the tubesheet. Included within this population was one tube in SG "3A", two tubes in SG "3B" and five tubes in SG "3C" identified with previous NTE indications (No Tube Expansion) that required a full tubesheet inspection from TEH to TSH +3.0 inches.

Cold Leg Expansion Transitions - All cold leg tube expansion transitions in peripheral high flow regions were examined for foreign object wear +3/-2 inches as referenced from the top of tubesheet.

Peripheral high flow regions are defined as the two outermost tubes exposed to the annulus, and row 1 and 2 tubes in columns 1-10 and in columns 83-92. In addition to the high flow regions, the balance of the open row 1 and 2 tubes was examined to complete the periphery examination.

Cold leg inspections included one tube in SG "3B" with a previous NTE (No Tube Expansion) that required a full tubesheet inspection from TEC to TSC +3.0 inches. (No tubes were identified with C/L NTE in SGs "3A" or "3C")

Examination of 50% minimum of the active Row 1 and 2 u-bend regions from the hot leg upper support plate to the cold leg upper support plate was required. All row 1 and 2 u-bend regions not examined at TP3-21 were included.

Examination of 50% minimum of all hot leg freespan dents/dings > 5 volts between TSH and 06H

+1.0" was required. All hot leg freespan dents/dings > 5 volts between TSH and 06H +1.0" not examined during TP3-21 were included.

Examination of 50% minimum of all u-bend dents/dings (not just Row I and 2) was required. All u-bend dents/dings not examined during TP3-21 were included.

Examination of 50% minimum of all hot leg dents/dings at structures was required. All hot leg dents/dings at structures not examined during TP3-21 were included.

Diagnostic examinations (Special Interest, SI) were completed as required based on the results from the bobbin coil test.

Visual examination was completed for 100% of tube plug locations.

Secondary side visual inspection of steam generator "3B" upper internals was completed.

Secondary Side upper bundle flush, sludge lancing and FOSAR (foreign object search and retrieval) in all three steam generators (SGs) was completed.

Turkey Point Unit 3 EOC 22 Steam Generator Tube Inspection Report Turkey Point Technical Specification 6.9.1.8 Page 2 of 15

b. Active degradation mechanism found The EOC 22 examination results for Turkey Point Unit 3 identified wear degradation at broached tube supports, Anti Vibration Bars (AVB), baffle plates, and suspected foreign objects locations as detailed below.

The wear degradation at the various tube support structures is not active based on industry guidance. The volumetric wear due to foreign objects is also not active because the foreign objects are no longer present based on secondary side visual examinations.

S 0

0 0

S Wear at anti-vibration bar tube contacts Wear at tube broached support plate tube contacts Wear at flow baffle plate tube contacts Wear indication at cold leg broached support plate [suspected foreign object, ECT shows Possible Loose Part (PLP)]

Volumetric indication at cold leg top of tubesheet (suspected foreign object no longer present)

Single Volumetric indication (SVI) within hot leg tubesheet (degradation mechanism unknown)

The volumetric indications associated with suspected foreign objects were detected as a result of improved analysis methods. For consistency, the foreign object wear indications were sized using the same qualified technique used during the EOC-20 examinations.

There were no indications of degradation in the examination of the U-bends or dings/dents and there was no evidence of corrosion-related degradation.

c. Nondestructive examination techniques utilized for each degradation mechanism Table 1 - Turkey Point Unit 3 Examination Techniques for EOC 22 (September 2007)

Industrv Damage Demontrated Extended Depth Sizing Site-Specific Review Technique Qualifica'ion Mechanism Applicability Applicability Technique Deemed Acceptable Q iciApplied Detection Sizing Bobbin 96001.1 T

n Topo"Tubeee A

.veTube:h.et Differontial M Ye, For Ino.ratn.ion Remistin 10 and TSP Phase.Analty 96004.1 AVBs TSPi PP Wear Differential Mix For Seacice*

2 Bobin ~

V~s SP.PLP ear Antptiruie An.alysts Yea AB ny 2

Bobbin R-sioa 9 Wear Diagonal and Vertical Strap!

(Detection)

(lit.ti Veantalysie)

(AVB Only) 96004.2 A,\\3 TSP:.

PAbsolhre Mix 3

Bobbin 900.

AVs TSPI PLP Wear

.piiude Anal,'+/-

Yes

-or Innoer'Mation Revision 9 Diagonal and "Vertical Strap-,

(Detection) i;Ver-ax) 4 Bobbin 96005.2 P; -

Free-pan t the Pres*etce of Sludre Pile Not Sired with Bobbin ye5 For tfomnadcn Revision g Copper 5

Bobbin 96007.1 eGAODSCC Non-Detd D.illed TSPs Free:-parr. Sludge Pile No! Sized with Bobbin Ye-.

For Infolario::.

Revision 10________

6 Bobbin 9600S.l ODSCC Sludge Pile Free:pan Not Sired with Bobbin Yes For ln:ormuation Revi-.in 13

(&Non-Dented Ecrte:.,

7 Bobbin 21013ODSCC Freepan Dig: <500 Volt.

None Not Sized with Bobbin Ye:

For Infrrnatio=

Re-vision 1 s

_Poin'T 965111,"2 DWSVC'C Low Row U-bead Notre Single Fiequncs's Ye:

For IM.fornration Reviisac 15 llha-e Arra!?'*:

20510 1 siDent.

Dines, Non-Single FeQanC' Ye 9

--Po:

ic PWSCC Expai Taiion D

ed SFppor Ye:

or i'.=hrmation Revision I S-_tcw',res, TubPesbeet 10

-Point" 2051.11on-Dented Stppn Single Freqency Revision 7 Axial PWSCC Expausi on Transision Satucn.D'*e Tublereet SPha.Ar lyFie.,

Yes Fot Izcutnatiot.I 1 !

-PoiuTMn 96703.1 i

S NoR-Dented Suppor:

Single FteqT..rc Ye:-

For tnforniaron I

girt evision 16 AxaIP'C etS'a'ursu,-

Tule~heet Phase.Anatysil Tubesheet. Expansion Singl Pje Foancy 12 22401.1 Axial ODSCC Dented Suvport Structures Trean.ion De--,s "Ye_-

For e:

,a'tron Re.ision 3 Dings, Non-dented TSP hase.- talyi-.

13

-Poinfv 96910.1 Wear Broached TSP AVB, Bathe Plate and Ditferenti Balt Yes For Set-ice PLP Wear (Usinz Ve-Mot 29.1Single F~req,*ncy, Fe"r enice o-J."

14

+PoinTM Re2 8.1 Volumetric Freespan None Amplitude Analysi Yes "F

S only (Using Peak-Peak) in nou-V otio 15 iii" 22 n423 Circ Supp-N Length Sizing Yes for Infoation Revi3iou4 Oi Dent S

None Pramv'o

_e____o__!______

"Btnohed TSP W.e~,

Baot.e Plate wear, and PLP wear shotuld be sized with Techniqtte 13.

Turkey Point Unit 3 EOC 22 Steam Generator Tube Inspection Report Turkey Point Technical Specification 6.9.1.8 Page 3 of 15 Table 1 (Cont') - Turkey Point Unit 3 Examination Techniques for EOC 22 (September 2007)

Industry Damage Demonstrated Extended Depth Sizing Site-Specific Review, Technique Qualificaton hani pplicbili" Applicability Technique Deemed Acceptable Applied Detection Detection Tubesbeet, 0.-rpoc Amp: (C EOG SiiZue)

S21409.1 S~upport Stirurure, Transation & U-beud Fiv.span Suppot..

A6

-iPoinc,

..i4 9 4

Ail ODSCC Freeipata. Sl*d*e Pile.

A-ýo extended for pitn lute Pile Re-ion

'et For Iformation Tuhesheet Crevice at e-,p. ansition and Plase:

in sludge pile TubeL-eetlUbend TSP, Free n.1 Sludge

~ +POSSI

~

21 410 It Pile. Tsabesheet, De=ts Sinzi~e Frequency Ye Fo nnatn I

+Point-Cur ODSCC Expamiou Tra.mition e,

aeAna For Information Reviaion 4 DEIPaeAayi U-bead

+-Poirnt 99997.14.2 Low Row U-beni

.n S

Frequency Na, (HF Probe)

Revisioa 9 Phase A.alysis

m. umatio Si*gle Freqnency 96701.1 Dtncs. Drigs Amplitude Anialysi S9

--Po.4 Renslo* I I Circ PRCC Ex'pasion Transition T(Ming Peak-Peak)

YeI For Information

-sheet

.rBased on Isx Depth Phase 20 11 p~cae 14 1 A LSw ile *Frecu encv

+Porarf*

1 24dI 1 Locations eare p:

Ninci" "Freane

.'oencftyn 20

. 15 Parake e,.

A~.

.ial ODSCC bed.

E..,one Phase A.e is ve

or Iriformano ptimary d~etection 21

.115 P*ancae 21402.1 Cuir ODSCC Expa*n*io Transition Slude Pile Smngle Freme2ac coil For nformation Phase Anav-u's 22

.115 Pancake 11503.1 Axial PWSCC Expaasion Transition Siudze Pile age Freqoency Iformaion 23

.115 Pancake Stl Fresen, oao 23.

15 Pncake P.aiion 2 Ciii: P"NI'V Ex.panson Tr*ansition Sludze Pile dhs 4na'*i etection Fci lcformatioo P~aseron2 "as coil Info onaY:

2 115P e 99998I Freespa in the Presece of Pe Sigle Frevaeac_

Use 24

.115 Pncake Coppr Pit.gS e Pile Amplitude Aualsis'

.6005.2 for For lnformation

.vision 4 Ces (Usiang Peak-Peak) pits in the sludge pile 25

.115PanIAbsotn.lte Ma 25

.115 Pancake P~-n Wear Broached TSP PLP Wear Amplitude An*yss, Poar.

For Service (Us iriz Ven-M!aL)

,e 2

M

.00019 21505.1

,SSiPzle Frecueac, prvaW or Informatiot Pancake Aison 2

P CC E#Basn Transition Shudee P

.ri.e 7nal's-as detecnon 2?

MO 19 2!106 1 Circ P"WýSCC Expawsion Transition Sludge Pile Single Freqzeiacy coil Pancake

-evision 2

Plse.AlySis T' he iziag= parameters in EPRI ETSS 21410.1 ae equivalent to thome hated in EPRI Repoit TR 107197-Pi.

Turkey Point Unit 3 EOC 22 Steam Generator Tube Inspection Report Turkey Point Technical Specification 6.9.1.8 Page 4 of 15

d. Location orientation (if linear) and measured sizes (if available) of service induced indications.

Turkey Point SG 3A EOC 22 AVB Wear (Note: There are no AVB wear indications >40% or PIT, VOL in SG 3A)

Tubes with Bobbin 1-19% TWD Indications ROW COL VOLTS 9

22 24 24 25 28 30 31 31 31 32 33 33 34 34 38 62 44 10 40 67 59 52 13 41 44 42 15 43 31 46 65 0.36 0.31 0.27 0.24 0.28 0.35 0.64 0.30 0.87 0.24 0.31 0.76 0.31 0.32 0.35 0.26 0.37 0.38 0.59 DEG 80 70 144 103 98 102 62 95 104 47 82 114 50 119 158 105 74 37 53 CHN IND P2 TWD P2 TWD P2 TWD P2 TWD P2 TWD P2 TWD P2 TWD P2 TWD P2 TWD P2 TWO P2 TWD P2 TWD P2 TWD P2 TWD P2 TWD P2 TWD P2 TWD P2 TWD P2 TWD

%TW LOCATION 12 AV4

+0.00 11 AV4

-0.11 8

AV4

-0.17 9

AV2

-0.32 10 AV2

-0.24 12 AV4

-0.06 19 AV3

-0.17 11 AVI

-0.23 19 AV3

-0.02 7

AVI

+0.24 9

AV4

+0.00 19 AV3

+0.34 9

AV3

-0.45 11 AV3

-0.30 10 AV3

-0.34 9

AV2

-0.24 12 AV2

+0.00 11 AV3

+0.68 18 AV3

+0.04 EXT EXT TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC UTIL 1 UTIL 2

TWR CAL # LEG 10 COLD 8

COLD 1

COLD 5

COLD 14 COLD 14 COLD 14 COLD 14 COLD 11 COLD 1

COLD 6

COLD 7

COLD 7

COLD 8

COLD 1

COLD 8

COLD 5

COLD 7

COLD 14 COLD PROBE 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL Total Tubes

16 Total Records:

19 Note:

TWR designates that a separate review was completed to evaluate for potential Tube to Tube wear. No intertube wear was reported.

Tubes with Bobbin 20-39% TWD Indications ROW COL VOLTS 28 59 0.95 37 47 1.45 DEG CHN IND %TW LOCATION 86 P2 TWD 25 AV2

-.0.24 85 P2 TWD 30 AV3

+0.09 EXT EXT UTIL 1

UTIL 2

CAL # LEG TEN TEC 14 COLD TEH TEC 8

COLD PROBE D

720UL D

720UL Total Tubes

2 Total Records: 2 Wear at Broached Tube Supports Tubes with Bobbin DSI confirmed as WAR with +Point' rotating probe ROW COL VOLTS 12 19 0.23 0.37 DEG CHN IND 122 P1 DSI 92 P5 WAR

%TW LOCATION EXT EXT UTIL I

03H

-0.77 TEH TEC 03H

-0.67 03H 03H 15 UTIL 2

CAL #

3 96910.1 37 LEG COLD HOT PROBE 720UL 680PP Total Tubes

1 Total Records: 2 Notes:

1)

DSI designates a distorted tube support signal reported by bobbin coil probe.

2)

The Utill field shows the estimated depth using qualified rotating +PointT sizing which confirms the presence of wear (WAR)

Turkey Point Unit 3 EOC 22 Steam Generator Tube Inspection Report Turkey Point Technical Specification 6.9.1.8 Page 5 of 15 Turkey Point SG 3A EOC 22 Volumetric Wear Indications Associated with Suspected Loose Parts Tube with Bobbin NQI confirmed as WAR with the +PointfM rotating probe at Cold Leg Tubesheet ROW COL VOLTS DEG CHN IND %TW LOCATION EXT EXT UTIL 1

UTIL 2

CAL # LEG PROBE 1

5 0.11 58 P5 WAR 0.41 70 5

NQI TSC

+3.11 TSC

+3.11 TSC TSC 7

06C TEC 96910.1 44 22 COLD 680PP COLD 720UL Total Tubes

1 Total Records: 2 Note:

1)

This indication was detected with the bobbin coil probe and confirmed with rotating +PointTM to be a small wear indication attributed to a foreign object which was no longer present. The indication was sized using 96910.1 to be consistent with the sizing technique used in EOC-20.

2)

The Util I field shows the estimated depth using qualified rotating +PointTM sizing which confirms the presence of wear (WAR)

END SG 3A DATA Turkey Point SG 3B EOC 22 AVB Wear (Note: There are no AVB wear indications >40% or PIT, VOL in SG 3B)

Tubes with Bobbin 1 to 19% TWD Indications ROW COL VOLTS DEG CHN IND %TW LOCATION EXT EXT UTIL 1

UTIL 2

CAL # LEG 17 31 0.33 0.19 26 20 0.48 26 50 0.41 30 42 0.51 32 27 0.41 34 20 0.54 34 31 0.51 0.73 0.31 34 33 0.52 34 52 0.44 34 53 0.56 34 59 0.60 0.43 34 73 0.38 35 48 0.75 0.84 40 47 0.47 41 34 0.37 42 53 0.37 0.49 0.37 44 37 0.27 45 46 0.56 45 49 0.28 135 130 149 153 52 48 26 83 87 83 48 72 115 55 73 79 68 107 119 40 50 46 101 105 83 169 P2 P2 P2 P2 P2 P2 P2 P2 P2 P2 P2 P2 P2 P2 P2 P2 P2 P2 P2 P2 P2 P2 P2 P2 P2 P2 TWD TWD TWD TWD TWD TWD TWD TWD TWD TWD TWD TWD TWD TWD TWD TWD TWD TWD TWD TWD TWD TWD TWD TWD TWD TWD 12 8

12 12 12 10 13 13 17 8

17 13 15 16 12 11 17 19 12 10 11 14 11 9

16 9

AV3 AV4 AV4 AV4 AVI AV2 AV3 AV2 AV3 AV4 AV3 AV4 AV3 AV2 AV4 AV2 AV2 AV3 AV3 AV2 AV3 AV3 AV4 AV4 AV2 AV4

-0.49

-0.15

+0.09

-0.02

+0.00

+0.02

-0.52

+0.00

+0.00

+0.00

+0.09

+0.04

-0.21

-0.02

-0.09

-0.10

+0.00

+0.04

-0.11

+0.00

-0.04

+0.41

-0.04

+0.21

+0.00

+0.13 TEH TEH TEH TEH TEH TEH TEH TEH TEH TEH 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 TEC TEC TEC TEC TEC TEC TEC TEC TEC TEC 20 20 5

12 9

5 5

7 7

7 8

12 12 12 12 16 9

9 9

7 12 12 12 10 10 12 COLD COLD 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 720UL 720UL Total Tubes

19 Total Records:

26

Turkey Point Unit 3 EOC 22 Steam Generator Tube Inspection Report Turkey Point Technical Specification 6.9.1.8 Page 6 of 15 Turkey Point SG 3B EOC 22 AVB Wear Tubes with Bobbin 20 to 39% TWD Indications ROW COL VOLTS DEG CHN IND %TW LOCATION EXT EXT UTIL 1

UTIL 2

CAL # LEG 30 42 0.92 1.20 0.93 34 53 1.08 1.22 60 P2 TWD 20 AV2 115 P2 TWD 24 AV3 92 P2 TWD 20 AV4 99 P2 TWD 25 AVI 101 P2 TWD 27 AV2

-0.09

-0.32

-0.19

+0.11

+0.02 TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC 9

9 9

12 12 COLD COLD COLD COLD COLD PROBE 720UL 720UL 720UL 720UL 720UL Total Tubes

2 Total Records:

5 Wear at Broached Tube Supports Tubes with Bobbin DSI confirmed as WAR with +PointT' rotating probe ROW COL VOLTS DEG CHN IND %TW LOCATION EXT EXT UTIL 1

UTIL 2

CAL # LEG PROBE 7

45 0.31 0.84 0.41 33 73 0.12 0.22 109 P5 WAR 02C 101 P1 DSI 02C 87 7

PLP 02C 126 P5 WAR 02H 115 P1 DSI 02H

+0.67 02C 02C 12 96910.1 36 COLD 680PP

+0.62 TEH TEC 23 COLD 720UL

+0.66 02C 02C LAR 36 COLD 680PP

-0.69 02H 02H 5

96910.1 37 HOT 680PP

-0.67 TEH TEC 15 COLD 720UL Total Tubes

2 Total Records:

4 Note:

1) The +PointrM rotating probe also identified the presence of a possible loose part (PLP) at the 2"d cold leg broached support location (02C)

2)

The Util 1 field shows the estimated depth using qualified rotating +PointTM sizing which confirms the presence of wear (WAR)

Wear at Flow Baffle Plate Tubes with Bobbin DSI confirmed as WAR with +Point TM rotating probe ROW COL VOLTS DEG CHN IND %TW LOCATION EXT EXT UTIL 1

UTIL 2

CAL # LEG PROBE 31 77 0.99 48 P1 DSI BAH

+0.37 TEH TEC 17 COLD 720UL 0.13 126 P5 WAR BAH

+0.53 BAH BAH 5

96910.1 41 HOT 680PP 39 64 0.42 112 P5 WAR BAH

-0.38 BAH BAH 16 96910.1 41 HOT 680PP 0.45 86 P1 DSI BAH

-0.27 TEH TEC 11 COLD 720UL 43 45 0.22 119 P5 WAR BAH

-0.41 BAH BAH 9

96910.1 41 HOT 680PP 0.40 89 P1 DSI BAH

-0.29 TEH TEC TWR 9

COLD 720UL Total Tubes

3 Total Records: 6 Notes:

I)

DSI designates a distorted tube support signal reported by bobbin coil probe.

2)

The Util 1 field shows the estimated depth using qualified rotating +PointTM sizing which confirms the presence of wear (WAR)

END SG 3B DATA

Turkey Point Unit 3 EOC 22 Steam Generator Tube Inspection Report Turkey Point Technical Specification 6.9.1.8 Turkey Point SG 3C EOC 22 Page 7 of 15 AVB Wear (Note: There are no AVB wear indications >40% or PIT, VOL in SG 3C)

Tubes with Bobbin 1-19% TWD Indications ROW COL VOLTS DEG CHN IND %TW LOCATION EXT EXT UTIL 1

UTIL 2

CAL # LEG PROBE 18 26 0.23 20 37 0.29 21 38 0.36 21 62 0.30 0.28 23 45 0.46 24 11 0.29 24 43 0.19 24 57 0.32 24 59 0.44 0.32 0.24 24 63 0.47 26 49 0.22 26 58 0.36 28 60 0.28 30 18 0.42 30 30 0.36 0.28 0.30 30 45 0.22 30 51 0.20 30 60 0.22 30 61 0.24 31 15 0.37 33 31 0.26 33 32 0.45 0.52 0.28 33 38 0.30 33 45 0.28 33 46 0.30 33 55 0.37 34 32 0.25 34 45 0.23 34 52 0.26 34 56 0.24 35 35 0.53 35 49 0.30 35 51 0.40 35 52 0.44 35 54 0.30 35 57 0.28 36 56 0.20 37 26 0.29 38 25 0.32 38 61 0.41 38 63 0.42 38 65 0.41 38 66 0.30 39 28 0.20 39 54 0.31 0.45 39 55 0.47 40 44 0.34 0.32 40 46 0.28 40 55 0.50 0.32 42 43 0.36 43 33 0.41 43 35 0.31 43 60 0.12 45 52 0.20 36 P2 93 P2 113 P2 67 P2 46 P2 144 P2 95 P2 134 P2 45 P2 101 P2 26 P2 109 P2 26 P2 111 P2 67 P2 64 P2 125 P2 53 P2 140 P2 146 P2 41 P2 108 P2 29 P2 21 P2 76 P2 101 P2 127 P2 109 P2 56 P2 81 P2 98 P2 39 P2 110 P2 93 P2 27 P2 137 P2 145 P2 78 P2 54 P2 122 P2 117 P2 68 P2 33 P2 41 P2 58 P2 47 P2 134 P2 38 P2 133 P2 100 P2 31 P2 98 P2 76 P2 48 P2 79 P2 68 P2 5.0 P2 66 P2 47 P2 33 P2 53 P2 51 P2 168 P2 166 P2 TWD 11 AV2

+0.11 TWD 14 AV3

-0.15 TWD 16 AV3

+0.00 TWD 13 AV2

+0.00 TWD 12 AVI

+0.09 TWD 18 AV3

+0.00 TWD 14 AV4

-0.15 TWD 10 AV2

+0.07 TWD 14 AV2

-0.09 TWD 17 AVI

+0.09 TWD 13 AV2

+0.04 TWD 11 AV3

-0.09 TWD 19 AV2

+0.00 TWD 12 AV3

-0.02 TWD 15 AV3

-0.32 TWD 13 AV2

+0.00 TWD 16 AVI

-0.36 TWD 16 AVI

+0.11 TWD 14 AV2

+0.15 TWD 14 AV3

-0.02 TWD 12 AV2

+0.04 TWD 10 AV2

+0.00 TWD 11 AV2

+0.00 TWD 12 AV4

+0.00 TWD 13 AVI

+0.17 TWD 11 AV2

+0.00 TWD 15 AV2

+0.19 TWD 17 AV3

+0.24 TWD 10 AV4

+0.04 TWD 13 AV3

+0.00 TWD 13 AV2

+0.00 TWD 14 AV3

+0.00 TWD 16 AV3

+0.00 TWD 12 AV3

-0.30 TWD 12 AV2

+0.06 TWD 13 AV3

+0.00 TWD 11 AV3

-0.04 TWD 17 AV3

+0.11 TWD 13 AV3

+0.00 TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC TEH TEC 19 19 7

10 10 7

3 8

10 10 10 10 9

8 10 9

2 5

5 5

8 7

9 9

4 6

6 6

6 7

7 7

9 5

8 8

10 6

7 8

7 9

9 10 5

5 9

9 10 11 6

9 9

9 7

7 8

10 10 7

6 6

9 8

COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD.

720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL

.COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL COLD 720UL TWD 18 TWD 18 TWD 14 TWD 13 TWD 9 TWD 14 TWD 15 TWD 18 TWD 18 TWD 16 TWD 13 TWD 9 TWD 14 TWD 19 TWD 19 TWD 15 TWD 14 TWD 14 TWD 19 TWD 14 TWD 15 TWD 16 TWD 11 TWD 6 TWD 11 AV2 AV3 AVI AV2 AV3 AV4 AV3 AV2 AV2 AV3 AV3 AV4 AV4 AV3 AV2 AV3 AV4 AV4 AV3 AV4 AVI AV3 AV3 AV2 AV4

-0.02

+0.00

+0.00

+0.00

+0.15

+0.06

-0.09

+0.00

+0.00

+0.06

+0.28

-0.02

+0.00

+0.00

+0.00

+0.00

+0.00

-0.11

+0.07

-0.11

+0.00

-0.13

+0.04

+0.11

+0.20 COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD COLD 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 72 0UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL 720UL TWR TWR Total Tubes: 54 Total Records:

64 Note:

TWR designates that a separate review was completed to evaluate for potential Tube to Tube wear. No intertube wear was reported.

Turkey Point Unit 3 EOC 22 Page 8 of 15 Steam Generator Tube Inspection Report Turkey Point Technical Specification 6.9.1.8 Turkey Point SG 3C EOC 22 AVB Wear Tubes with Bobbin 20-39% TWD Indications ROW COL VOLTS DEG CHN IND %TW LOCATION EXT EXT UTIL 1

UTIL 2

CAL # LEG PROBE 21 38 0.56 70 P2 TWD 22 AV2

+0.00 TEH TEC 7

COLD 720UL 24 63 0.74 110 P2 TWD 26 AV3

+0.00 TEH TEC 9

COLD 720UL 25 62 0.67 95 P2 TWD 23 AV3

+0.17 TEH TEC 10 COLD 720UL 0.55 55 P2 TWD 20 AV2

-0.02 TEH TEC 10 COLD 720UL 26 58 0.53 93 P2 TWO 20 AVi

+0.30 TEH TEC 10 COLD 720UL 0.87 82 P2 TWO 27 AV2

+0.02 TEH TEC 10 COLD 720UL 28 48 1.09 85 P2 TWD 31 AV2

+0.26 TEH TEC 8

COLD 720UL 30 30 0.48 78 P2 TWD 20 AV4

-0.06 TEH TEC 5

COLD 720UL 30 31 0.63 74 P2 TWD 24 AVl

-0.23 TEH TEC 5

COLD 720UL 0.65 132 P2 TWO 24 AV2

+0.15 TEH TEC 5

COLD 720UL 0.76 77 P2 TWD 26 AV3

-0.06 TEH TEC 5

COLD 720UL 30 45 0.65 126 P2 TWD 24 AV3

+0.13 TEH TEC 8

COLD 720UL 30 61 0.81 123 P2 TWD 27 AV2

+0.00 TEH TEC 9

COLD 720UL 33 31 0.61 119 P2 TWD 21 AV3

+0.00 TEH TEC 6

COLD 720UL 33 43 0.72 114 P2 TWD 26 AV2

+0.00 TEH TEC 7

COLD 720UL 0.99 62 P2 TWD 31 AV3

+0.00 TEH TEC 7

COLD 720UL 34 31 0.93 101 P2 TWD 30 AV2

+0.11 TEH TEC 5

COLD 720UL 1.33 J103 P2 TWD 35 AV3

-0.02 TEH TEC 5

COLD 720UL 34 41 0.99 101 P2 TWD 30 AV4

-0.02 TEH TEC 8

COLD 720UL 0.96 97 P2 TWO 29 AVl

+0.13 TEH TEC 8

COLD 720UL 1.01 83 P2 TWO 30 AV2

-0.07 TEH TEC 8

COLD 720UL 1.07 90 P2 TWD 31 AV3

-0.04 TEH TEC 8

COLD 720UL 34 44 0.53 96 P2 TWD 21 AV3

-0.09 TEH TEC 8

COLD 720UL 0.52 41 P2 TWD 21 AV4

-0.04 TEH TEC 8

COLD 720UL 35 36 0.65 64 P2 TWD 24 AV2

+0.09 TEH TEC 5

COLD 720UL 0.56 141 P2 TWO 22 AV3

+0.02 TEH TEC 5

COLD 720UL 35 49 0.'72 59 P2 TWD 25 AV4

+0.00 TEH TEC 7

COLD 720UL 35 54 0.48 54 P2 TWD 20 AV2

+0.00 TEH TEC 9

COLD 720UL 37 28 0.58 78 P2 TWD 20 AV4

+0.00 TEH TEC 6

COLD 720UL 38 65 0.76 92 P2 TWD 25 AV4

-0.04 TEH TEC 10 COLD 720UL 0.74 96 P2 TWD 24 AV2

+0.06 TEH TEC 10 COLD 720UL 38 71 0.74 128 P2 TWO 25 AV3

+0.00 TEH TEC 11 COLD 720UL 40 25 0.52 87 P2 TWD 21 AV2

+0.02 TEH TEC 5

COLD 720UL 0.89 91 P2 TWD 29 AV3

-0.02 TEH TEC 5

COLD 720UL 42 31 0.56 47 P2 TWO 22 AV3

-0.02 TEH TEC 5

COLD 720UL Total Tubes

22 Total Records:

35 Wear at Broached Tube Supports Tubes with Bobbin DSI confirmed as WAR with +PointTM rotating probe ROW COL VOLTS DEG CHN IND %TW LOCATION EXT EXT UTIL 1

UTIL 2

CAL # LEG PROBE 5

85 0.14 84 P5 WAR 03H

-0.70 03H 03H 04 96910.1 42 HOT 680PP 0.22 93 P1 DSI 03H

-0.63 TEH TEC 25 COLD 720UL 29 73 0.31 233 P5 WAR 02H

-0.82 02H 02H 10 96910.1 42 HOT 680PP 0.56 119 P1 DSI 02H

-0.73 TEH TEC 12 COLD 720UL 32 19 0.16 53 P5 WAR 03H

-0.61 03H 03H 3

96910.1 42 HOT 680PP 0.17 110 P1 DSI 03H

-0.54 TEH TEC 1

COLD 720UL Total Tubes

3 Total Records:

6 Notes:

1)

DSI designates a distorted tube support signal reported by bobbin coil probe.

2)

The Util I field shows the estimated depth using qualified rotating +PointTM sizing which confirms the presence of wear (WAR)

Turkey Point Unit 3 EOC 22 Steam Generator Tube Inspection Report Turkey Point Technical Specification 6.9.1.8 Page 9 of 15 Turkey Point SG 3C EOC 22 Tubes Plugged Listing ROW COL VOLTS DEG CHN IND %TW LOCATION EXT EXT UTIL 1

UTIL 2

CAL # LEG PROBE 20 67 0.34 265 2 SVI TSH

-6.01 TSH TSH 30 21998.1 30 HOT 720PP Total Tubes

1 Total Records:

1 Note:

1)

SVI is a designation for single volumetric (OD) indication detected with the rotating +PointTM probe while performing the extended hot leg tube sheet examinations of plus 3.0 inches to minus 17.0 inches.

2)

This tube was plugged in accordance with technical specification requirements.

END SG 3C DATA

e. Number of tubes plugged durin$! the inspection outage for each active degradation mechanism Turkey Point Unit 3 Steam Generator Tube Plugging at EOC 22 Degradation Mechanism SG 3A SG 3B SG 3C Total Wear at anti-vibration bar tube contacts 0

0 0

0 Wear at tube support plate tube contacts 0

0 0

0 Wear at flow baffle plate tube contacts 0

0 0

0 Volumetric indication (unknown mechanism inside tubesheet) 0 0

1 1

Totals 0-1 0

1 1

1

f. Total number and percentage of tubes plugged to date Turkey Point Unit 3 Steam Generator Cumulative Tube Plugging Summary SG

1. Plugged

% Plugged 3A 47 1.50 3B 69 2.15 3C 54 1.68

Turkey Point Unit 3 EOC 22 Page 10 of 15 Steam Generator Tube Inspection Report Turkey Point Technical Specification 6.9.1.8

g. The results of condition monitoring including the results of tube pulls and in-situ testing The size of each of the wear indications at AVB, Top of Tube Sheet (TTS), broached Tube Support (TSP) and flow baffle (BAH) locations was evaluated and compared to structural limits. As shown in Figures 1 through 4, the wear indications were shallow in depth and within the calculated structural limits. Therefore, all indications met industry requirements for structural integrity. Leakage potential for the tubes was zero.

Therefore, these mechanisms remain within the tube integrity performance criteria. Profile analysis of three baffle plate locations was completed for tubes R31 C77, R39 C64, and R43 C45 in SG 3B. The lowest calculated lower 95% burst pressure, taking into account material strength, sizing, and relational uncertainties, is 7760 psi for R39 C64. This value is significantly greater than three times normal operating pressure differential (4552 psi). Therefore, these indications met the structural and leakage integrity performance criteria and in situ pressure testing was not required The size of the single volumetric indication within the hot leg tubesheet was also compared to the structural limits. This indication (S/G 3C R20 C67) met the initial screening as shown in Figure 5. Subsequent profile analysis and structural evaluations were completed to determine if in situ pressure testing was required. The calculated lower 95% burst pressure, taking into account material strength, sizing, and relational uncertainties, is 6980 psi. This value is significantly greater than three times normal operating pressure differential (4552 psi). Therefore, this indication met the structural and leakage integrity performance criteria and in situ pressure testing was not required Tube R20 C67 in S/G 3C, Condition Report 2007-28662, was plugged for the outside diameter (OD) volumetric indication detected approximately 6 inches below the hot-leg TTS. This indication is within the tubesheet and the tube-to-tubesheet crevice is closed. Therefore, there is no adverse service environment and this indication is considered to most likely be a result of manufacturing or installation and not service induced.

One existing TSP wear indication in S/G 3B, Tube R7 C45 at support location 02C+0.67 inch showed evidence of a PLP which could not be confirmed by visual examination due to restricted access. The wear indication was first seen in 1990 and essentially has not changed in size since that time. The wear depth was shallow (~-13%TW) in 2003 and was sized during the 2007 inspection as 12%TW. The wear rate is low based on tracking data covering 17 years of past operation. All adjacent tubes showed no evidence of wear. Because of the shallow measured depth, long service history without significant change in voltage, as well as the lack of physical evidence of wear to adjacent tubes, the loose part is most likely small and immobile. This tube remains in service and will be tracked during future inspections.

In summary, the structural integrity for all indications met the structural and leakage integrity performance criteria for tube integrity. Therefore, the Turkey Point Unit 3 steam generators satisfy the condition monitoring requirements during the past operating cycle for all detected tube degradation.

h. The effective plugging percentasze for all plugging in each SG No tube repair methods (i.e., sleeving) are approved for Turkey Point Unit 3 that would have an affect on effective plugging percentages. Therefore, the applicable effective plugging percentage for all plugging is shown in "% Plugged" in item f. above.

Turkey Point Unit 3 EOC 22 Steam Generator Tube Inspection Report Turkey Point Technical Specification 6.9.1.8 FIGURE 1 AVB Wear (Bobbin) vs. Structural Limit (All S/G's)

Page 11 of 15 100 90 80 70

~-.

Leak Screening Burst Screening TW Structural Limit SG A Bobbin AVB Wear A

SG B Bobbin AVB Wear

,o SG C Bobbin AVB Wear F-x E

M E

M

.9X 60 50 40 A

30 20 10 0

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Axial Degradation Length, L (in)

Turkey Point Unit 3 EOC 22 Steam Generator Tube Inspection Report Turkey Point Technical Specification 6.9.1.8 Page 12 of 15 FIGURE 2 TTS Wear (+Point TM ) vs. Structural Limit (All S/G's) 100 90 80 70 E

E "C-0."

X a)

E

.E x

60 50 40 30 20 10 0

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Axial Degradation Length, L (in)

Turkey Point Unit 3 EOC 22 Steam Generator Tube Inspection Report Turkey Point Technical Specification 6.9.1.8 FIGURE 3 TSP Wear (+Point TIA) vs. Structural Limit (All SIG's)

Page 13 of 15 100 90 80 701

-~

Leak Screening Burst Screening TW Structural Limit M

SG C <=0.5 Volts SG B <=0.5 Volts A

SG A <=0.5 Volts I--

E E

0a E

x Mo 60 50 40 A

• 1 30 20 10 0

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Axial Degradation Length, L (inches)

Turkey Point Unit 3 EOC 22 Steam Generator Tube Inspection Report Turkey Point Technical Specification 6.9.1.8 Page 14 of 15 FIGURE 4 BAH Wear (+PointTM ) vs. Structural Limit (All S/G's) 100 90 80 70 E

E E

60 50 40 I

I I

I Leak Screening I

• Burst Screening

...... TW Structural Limit

+

SG B <=0.5 Volts 30 20 10 0

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Axial Degradation Length, L (inches) 2.0

Turkey Point Unit 3 EOC 22 Page 15 of 15 Steam Generator Tube Inspection Report Turkey Point Technical Specification 6.9.1.8 FIGURE 5 Tubesheet Volumetric (+Point TM) vs. Structural Limit (All StG's) 100 90 80 70 E

0 E

E X

60 50 40 30 20 10 0

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Axial Degradation Length, L (in)