ML20095K809

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Forwards Facility Tube Pull ECT Indication Sizing Results Summary & Facility Tube Pull ECT Indication Profiles from Fall 1995 Outage
ML20095K809
Person / Time
Site: Byron 
Issue date: 12/22/1995
From: Saccomando D
COMMONWEALTH EDISON CO.
To:
NRC (Affiliation Not Assigned), NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9512290274
Download: ML20095K809 (34)
v • d • e


Text

Omimonwrahh Edium Company 1

1 um Opin, l'iare i

D$ wners Gnne. IL 60515 December 22, 1995 U. S. Nuclear Regulatory Commission Office of Nuclear Reactor Regulation Washington, DC 20555 Attn:

Document Control Desk

Subject:

Byron Unit 1 Pull Tube Eddy Current Inspection Results NRC Docket Number 50-454

Reference:

December 20, 1995, Meeting between the Commonwealth Edison Company (Comed) and the Nuclear Regulatory Commission (NRC) l Pertaining to Circumferential Indicaticns at Braidwood Unit 1 and Byron Unit 1 i

During the Reference meeting, the Commonwealth Edison Company (Comed) discussed with the Nuclear Regulatory Commission (NRC) recent results from the Braidwood Unit 1 and Byron Unit 1 1995 Fall outages.

Part of that discussion centered around the Byron tube pull effort. This information along with subsequent submittals will be used as input in determining the appropriate cycle length for Braidwood Unit 1.

Additionally, this information will also be used in the development of the Comed /EPRI Alternate Repair Criteria for circumferential indications which will be submitted to the Staff in the Summer of 1996.

1 Attached is the field eddy current testing (ECT) data of the Byron tube pull available as of December 21, 1996. Specifically enclosed is: : Comed Byron Tube Pull ECT Sizing Results Summary When reviewing Attachment 1, please note that the following table cross references the specific tube and its classification.

C1assification Row Column Largest Amplitude 38 55 Smallest Crack 28 68 Largest + Point W/0 Confirmation 20 85 Shallow Phase 38 44 Deepest In-Service 23 43 (Broken in 2 sections)

Prob. NDD 24 91 0.115" Crack, NDD 0.080" 14 93 Small Amplitude 27 48 Mixed Mode 24 42 (Broken 1 Section)

Largest Circ. Extent 14 37 (Broken 1 section) will be supplemented when the various vendor complete the sizing of indications.

K:nla\\bytwj\\stgen\\ circ 000019 9512290274 951222 ii PDR ADOCK 05000454 I

P PDR I

A 1:nicom company

.NRC Document Control Desk 2-December 22, 1995

. : One set of eddy current profiles For Attachment 2. it should be noted that for that particular vendor, a 25% through wall depth was assigned when depth could not be determined.

The graphic profiles of the individual indications will be maintained at the EPRI NDE Center in Charlotte N.C.

To the best of my knowledge and belief, the statements contained in this document are true and correct.

In some respects these statements are not based on my personal knowledge, but on information furnished by other Comed i

employees, contractor employees, and/or consultants.

Such information has been reviewed in accordance with company practice, and I believe it to be reliable.

If you have any questions concerning this correspondence please contact this office.

Sincerely, f0FIICIAL SEAll S JACQUELINE T EVANSU WO

! EcES'

"^^^^^^^^^^^^^^eYEMN!f Denise M. Saccom ido

^^^^-- --' '

Nuclear Licensing Administrator g/3 Attachment cc:

D. Lynch. Senior Project Manager-NRR G. Dick. Byron Project Manager-NRR H. Peterson Senior Resident Inspector-Byron H. Miller. Regional Administrator-RIII Office of Nuclear Safety-IDNS K:nla\\bytW\\stgen\\ circ

ATTACHMENT 1

\\

Comed Byron Tube Pull ECT Indication Sizing Results Summary 1

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e ATTACHMENT Comed BYRON TUBE PULL ECT SIZING RESULTS

SUMMARY

BTRON PULLED TUBES (12/95)

Probe AnalyzediCalGroup(s)

Plus Point 300 kHz 205,207.209 i

Vendor A

I BrielDecription of Technique Asial scan line fdter phase measurement with fiher applied R0W COL ARC LENGTH (S)

MAX DEPTH AV3. DEPTH %

AXIAL INDIC ATION AXIAL INDIC ATION COMMENTS Degrees OVER 380 DEPTH %

LENGTH (inches) 24 91 82 40 8.8 Best Effort on Depth 28 88 28 78 4.7 40 0.18 20 85 158i20l5 89 24.3 08 44 70 40 7.8 Best Effort on Depth 23 43 87l59122 f 39 88 28 24 42 145 99 35.8 74 0.18 14 93 251 83 41.8 98/99188

.25 l.25 l.20 27 48 58 40 8.4 Best Effort on Depth 38 55 310 88 43.9 l

14 37 310 99 81.1 8YRON PULLED TUBES (12195)

Probe AnalyredlCalGroup(s)

Plus Pt. Gimbaled 300 kHz 187 j

Vendor A

Bnef Dscnpten of Technique Asial scan line filter applied (Length measurement only)

ROW COL ARC LENGTH (S)

MAX DEPTH AVG. DEPTH %

AXIAL INDIC ATION AXIAL INDIC ATION COMMENTS Degrees OVER 380 DEPTH %

LENGTH linches) 24 91 187 40 18.77 28 88 41 40 4.89 52 0.33 20 85 293 67 32.92 38 44 44 40 3.71 23 43 97,174 100,96 55.07 24 42 177 89 33.07 80 0.19 14 93 288 88 43.94 27 48 232 51 23.72 38 55 316 41 25.24 14 37 304 98 48.77 Pe081

4 BYRON PULLED TU8ES(12l95)

Probe AnalpedlColGroup(s) 205,207,200 0.000 pencake Vender B

Brief Oscription of Technsue 0.080 nw pencake vsmg exial average fdier R0W COL ARC LENGTHIS)

MAX DEPTH AVG. DEPTH %

AXIAllNDIC ATION AXIALINDICATION COMMENTS Degrees OVER 380 DEPTH %

LENGTH (inches) 24 91 0

0 0

28 68 40 84 8.22 20 85 0

0 0

38 44 0

0 0

23 43 70.00 85.100 -

18.94 24 42 80.90 95,99 20.64 14 93 120 100 15.84 27 48 0

0 0

38 55 120 99 22.08 14 37 220 99 27.33 BYRON PULLED TUBES (12/95)

Probe AnalpedlCalGroup(s) 207.205.209 Vender B

Brief Decnption of Technique

.115 pancake using enial everage filter R0W COL ARC LENGTH (S)

MAX DEPTH AVG. DEPTH %

AXIAL IN0lC ATION AXIAL INDICATION COMMENTS Degree OVER 380 DEPTH %

LENGTH linches) 24 91 0

0 0

28 88 40 20 1.87 20 85 40 99 8.19 38 44 40 20 1.87 23 43 100.180 99,92 39.08 24 42 80.90 98,99 33.97 14 93 130 79 11.31

)

27 48 40 95 8.31 I

38 55 40,140 52.90 27.08 14 37 140,70.30.20 98.99.34.20 25.89 l

1 i

Page 2

.s j

Y BYRON PULLED TUBES (12l95)

Probe Analyzed lColGroup(s) 205,207.209 Vender B

Brief Decription of Technique Piva point using oxieleverage fdier R0W COL ARC LENGTHIS)

MAX DEPTH AVG. DEPTH %

AXlAL INDIC ATION AXIALINDIC ATION COMMENTS Degrees DVER 360 DEPTH %

LENGTH (inches) 24 91 80 98 10 28 88 40 45 2.38 20 85 30,20 90.88 7.10 38 44 30 80 3.83 23 43 70,40,40.80.20 99,98,89,98,70 38.80 24 42 170 98 34.44 14 93 100 91 18.44 27 48 90 89 18.5

- 38 55 80.120,40 95,98,99 40.58 14 37 40,80,40,20 78,84,75.88 20.03 BYRON PULLED TUBES (12195)

Probe AnotyisdlColGroup(s) 205,207,209 Vender C

Brief Discription of Technique Cross Correlaten Fdtering R0W COL ARC LENGTHtS)

MAX DEPTH AVG. DEPTH %

AXIAL INDIC ATION AXIAL INDIC ATION COMMENTS Degrees OVER 380 DEPTH %

LENGTH (inches) 24 91 0

0 0

28 88 40 28 1.77 2

20 85 40 42 2.47 38 44 80 69 8

23 43 340 97 27.27 24 42 14 9 88 28.14 80 0.21 i

14 93 300 100 27.87 27 48 150 25 9.64 38 55 290 55 19.11 14 37 340 54 25.89 4

i

?

a 4

1 4

Pege 3

4 BYRON PULLED TUBES (12/95)

Probe AnalyzedlCalGisup(s) 197 Vender C

Brief Discription of Technique Band Pass Fdtering Plus Pt.300 kHz R0W COL ARC LENGTHIS)

MAX DEPTH AVG. DEPTH %

AXIAL INDICATION AXIAL INDICATION COMMENTS Dagrees OVER 360 DEPTH %

LENGTH (inches) 24 91 180 29 11.92 28 88 40 34 1.72 20 85 70 41 3.32 38 44 80 25 2.42 23 43 350 98 43.22 24 42 180 97 34.84 72 0.25 14 93 288 25 17.92 27 48 170 59 12.99 38 55 309 75 25.43 14 37 350 97 39.39 BYRON PULLED TUBES (12/95)

Probe AnalysediCalGroup(si Vander D

Brief Dacription of Technulue

.000 MR 300 kHz conventional analysis (not usmg axialview)

R0W COL ARC LENGTH (S)

MAX DEPTH AVG. DEPTH %

AXIAL IN0lC AT10N AXlAL INDIC ATION COMMENTS Degrees OVER 380 DEPTH %

LENGTH (inches) 24 91 0

0 28 88 0

0 20 85 0

0 38 44 80 0

23 43 380 78 24 42 190 80 86 0.29 14 93 149 0

27 48 0

0 38 55 360 90 14 37 338 70 Page 4

l, 8YRON PULLED TUBES (12!951 Probe AnalyzedlCalGresNs)

Vender D

Brwf Decnption of Technique

.000 MR 300 kHz ED0YNET SOFTWARE R0W COL ARC LENGTH (S)

MAX DEPTH AVG. DEPTH %

AXIALINDIC ATION AXIALINDIC ATION COMMENTS Degrees OVER 380 DEPTH %

LENGTH (mches) 24 91 DATA T00 N0lSY 28 80 20 85 38 44 23

' 43 72,47,58 99 34.1 91 MAX,88 AVG.

0.27 24 42 48,100,72 98 42.5 ElXED MODE IND 14 93 222,28 80 17.3 27 48 38 55 305 88 28.2

' 14 37 250.25 94 41.3 BYRON PULLED TUBES (12/95)

Probe AnalyzedlCalGroups)

Vendar D

Brief Decription of Technique Asial sensitive coil 300 kHz conventional snelys' (not using asial view) s R0W COL ARC LENGTH (S)

MAX DEPTH AVG. DEPTH %

AXIAL INDIC ATION AXIALINDIC ATION COMMENTS Degrees DVER 380 DEPTH %

LENGTH (inches) 24 91 28 88 20 85 Some resWusi 38 44 23 43 Some residual 24 42 81 0.35 Some resdual 14 93 Some resWusi 27 48 38 55 Some msdual 14 37 BYRON PULLED TUBES (12195)

Probe AnalyzedlCalGroup(s)

Vender D

Bruf Decripten of Technxlue Circumferential sensitive coil 300 kH2 conventional analysis (not using asial view)

+

R0W COL ARC LENGTH (S)

M AX DEPTH AVG. DEPTH %

AXIAL INDICATION AXIAL INDIC ATION COMMENTS Degrees OVER 380 DEPTH %

LENGTH (inches) 24 91 0

0 28 88 32 11 20 85 37,78 49,32 Multiple 38 44 34.87 34,42 Multiple 23 43 108,138 88.48 Multiple 24 42 191 79 14 93 119 0

27 48 298 49 38 55 380 81 14 37 303 88 Page5

l.

BTRON PULLED TUBES {12!95)

Probe AnalyradiCalGroupts) 205,207,209 Vender D

Brief Discription of Technique 115 MR 300 kHz conventional analysis (not uswig suial vies)

R0W COL ARC LENGTH (S)

MAX DEPTH AVG.0EPTH %

AXIAL INDICATION AXIAL INDIC ATION COMMENTS Degrees OVER 360 DEPTH %

LENGTH finches) 24 91 108 0

28 68 51 0

20 85 62,127 0,16 30 44 211 0

23 43 355 76 24 42 186 90 71 0.29 14 93 164 19 27 48 223 0

38 65 225 72 14 37 335 57 BYRON PULLED TUBES (12!95)

Probe AnalyndiCalGroupts) 205,207.209 Vender D

Brief Discr$ tion of Technique Plus Pt. 300 kHz conventional analysis (not using exial wiew)

R0W COL ARC LENGTH (S)

MAX DEPTH AVG, DEPTH %

AXIAL INDICATION AXI AL INDIC ATION COMMENTS Degrees OVER 360 DEPTH %

LENGTH (inches) 24 91 150 0

28 68 67 40 20 85 104.43 44,18 Mult$le 38 44 50,31 13,0 Mult$le 23 43 360 74 24 42 196 82 75 0.2 14 93 300 33

)

27 48 97 38 38 55 353 57 14 37 360 64 1

1 Page6

a BYRON PULLED TU8ES(12/95)

Probe AnalyzedlCalGroup(s) 203 Vender D

Brmf Decription of Technique

.000 HF 300 kHz conventional snehsis (not useg exial view)

R0W COL ARC LINGTHIS)

MAX DEPTH AVG. DEPTH %

AXIALINDICAT10N AXIAL INDIC ATION COMMENTS Degrees OVER 360 DEPTH %

LENGTH (inches) 24 91 98 0

28 68 41 0

20 85 152.38 0,0 Multiple 38 44 192 0

23 43 349 74 24 42 185 84 73 0.28 14 93 152 0

27 48 246 0

38 55 339 69 14 37 295 43 BYRON PULLED TUBES (12195)

Probe AnalyzedlCalGroup(s) 197 Vender D

Brief Discription of Technique GunbaNed Plus Pt. 300 kHz conventional analysis not using axial view R0W COL ARC LINGTHIS)

MAX DEPTH AVG. DEPTH %

AXIAL INDIC ATION AXIAL INDIC ATION COMMENTS Degrees OVER 380 DEPTH %

LENGTH (inches) 24 91 225 62 28 68 39 20 20 85 241 40 38 44 72 25 l

23 43 120.48 89 21.7 24 42 198 98 48.3 87 0.2 14 93 289 0

27 48 201 47 38 55 335 84 14 37 360 70 BYRON PULLED TUBES 112195)

Probe Analyzed Vendor D

Brief Decription of Technique Cerco-5 Compensation Mix R0W COL ARC LENGTHIS)

MAX DEPTH AVG. DEPTH %

AXIAL INDICATION AXIAL INDIC ATION COMMENTS Degrees DVER 380 DEPTH %

LENGTH (inches) 24 91 NDD 0

28 68 NDD 0

20 85 NDD 0

38 44 NDD 0

23 43 45.23 78,58 24 42 45,45 40,20 14 93 45 30 27 48 NDD 0

38 55 90 50 14 37 23 20 Pege 7

l, BYRON PULLED TUBES (1495)

Probe Analyzed Vender 0

Brief Discription of Tecnnique.

UTEC R0W COL ARC LENGTHIS)

MAX DEPTH AVG.0EPTH %

AXIAL INDICATION AXIAL INDIC ATION COMMENTS De9rees OVER 380 DEPTH %

LENGTH (mches) 24 91 N00 28 68 97 30 7.2 Interrmitent 20 85 300 not measurable Intermittent _

38 44 10,10 net measurable 97 includes 2 exially 23 43 97(35.31),42,17 85 12 separated in(

24 42 208 80 28 not measurable 0.25 latermittent 14 93 N00 27 48 N00 Intermittent Ind, belem 38 55 310 not messurable bottom roll trans.

14 37 380 not measurable intermittent BYRON PULLED TUBES (12'95)

Probe AnalyndlCalGroup(s) 205,207,209 Vender E

Brief Discrvtion of Technique Plus Pt 300 kHz R0W COL ARC LENGTH (S)

MAX DEPTH AVG.0EPTH %

AXIAL INDICATION AXlAL!NDIC ATION COMMENTS Degrees DVER 380 DEPTH %

LENGTH (inches) 24 91 180 80 28 88 145 90 80.80

.17 29 20 85 380 90 38 44 219 90 23 43 380 100 24 42 253 100 100 0.21 14 93 380 90 27 48 304 90 80 0.25 38 55 380 90 14 37 380 100 Page8

I ATTACHMENT 2 T

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Byron Tube Pull ECT Indication Profiles l

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. R24 C99 DEGREES

TW EST! MATE' 030 00 -

0.00

-040:

. 25 250.00 050

25 '

250.00 060-25

-250.00 070

' 25 250.00 000 25 '

250.00 090

'25 250.00 100.

25 250.00 110 25.

250.00

'120 25 250.00 130 25

~250.00 140 25

.250.00-150-25 250.00 160

'25 250.00 170 25' 250.00 180 25

-250.00

-190-25 250.00.

200 29 290.00

'030-00 0.00 Tube Ola. e 0.7500 Well Thickness = 0.0430 Flaw Length Degraded Area = 23.83%

360 Degree Degraded Area = 11.92%

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R28 C68 Plus Point Gimbated Probe 300 kHz Band Pass Filtering (low 17, high 105, 23 coef)

Flaw Length Begraded Area = 15.45%

Length = 040 deg.

Dia. = 0.7500 360 Degree Degraded Area = 1.72%

Max Depth = 34%

' Wall = 0.0430 100--

80 -

60 -

%TW 40 -

go _.

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' R28 C68 i

l ' D80REES TWi ESTIMATE

'250

' 00 0.00' 260 ;

34 340.00-~

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270 26 260.00 279;

' 02 :

18.00' 250.'.

00 :-

0.00

- T h Dia. e 0.7500-i

' Well Thickness = 0.0430

' Flaw Length Degraded Area = 15.45%

' 360 Degree Decreded Area = 1.72%

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R20 C85 Plus Point Gimbated Probe 300 kHz Band Pass Fil e ing (low 17, high 105, 23 coef) 70 Flaw Length Degraded Area = 5.03Z Length =.23E deg.

Dia. = 0.7500 360 Degree Degraded Area = 3.32%

Nax Depth = 41%

Wall = 0.0430 100--

80 -

60 -

%TW 40 -

20 -

d.

90 180 270 360 Circumferential Extent (degrees) 06:07 12/12/95 (ver 01)

n.

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R20 C85-0EGREES' TW ESTIMATE -

035-00,

0.00.

-045 11

.110.00 l055 01

.10.00-

~065

~00 0.00'

'075..16-160.00-085 -

27 -

270.00 095' 00 '

O.00 -

105 00 0.00

-234 00.

0.00 243

~ 21 '

'189.00 254' 08 88.00 263

' 41 -

369.00-035 00 0.00 Tube Dio = 0.7500 Wati Thickness' 0.0430

' Flaw Length Degraded Area = 5.03%

360 Degree Degraded Area = 3.32%

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R38 C44 T

Plus Point Gimbated Probe 300 kHz Band Pass Filtering (low 17, high 105, 23 coef)

Flaw Length Degraded Area = 14.50Z 1.ength = 060 deg.

Dia = 0.7500 360 Degree Begraded Area = 2.42%

Max Depth = 25Z Mall = 0.0430 100--

90 60 -

ZTM 40 -

l 20 -

4 l

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90 180 273 360 Circunferential Extent (degrees) 06:17 12/12/95 (ver 01)

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DEGREES

'TW ESTIMATE

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/ 200..

08-

.80.00 210

= 25 250.00 220

- 25 250.00 230 25.:

250.00 180'_

00

.0.00 Tube Dia. = 0.7500-Well Thickness = 0.0430 s

d ~ Flat' Length Degraded Area = 14.50%

- 360 Degree Degraded Area = 2.42%

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R23 C43 Plus Point Cimbaled Probe 300 kHz Band Pass Filtering (Iow 17, high 105, 23 coef)

Flaw Length Degraded Area = 44.46%

Length = 350 deg.

Dia. = 0.7500 360 Degree Degraded Area = 43.22%

Max Depth = 98%

Wall = 0.0430 100--

80 -

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ZTM 40 -

- = = _

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R23 C43.

DEGREES -

TW-EST! MATE 008

' 00 -

0.00 '

018 79 790.00-028-53 530.00 038 80

'800.00 048 66 660.00 l

058 66 660.00 068 76 760.00

.079 '

65 715.00 3

088~

-15 135.00-

' 098 25 250.00 108 25 250.00 118 25 250.00

.128 25 250.00 138 38-380.00 148.

25 250.00 158 25.

250.00.

168 76 760.00

'178 58 580.00 i

188 98 -

980.00-

198-32 320.00

. 208 -

28 280.00-218 25 250.00 228 97 970.00 238' 25 250.00 248 29 270.00

'258 96 960.00 268 01 10.00 278 25 250.00

- 288 92 920.00

'298 81 810.00 1

308 25 250.00 318 00 0.00 328 25 250.00

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338 25 250.00 348 25 250.00 008 00 0.00 Tube Dia. = 0.7500 Wet L Thickness = 0.0430 -

Flow Length Degraded Area = 44.46%

_ 360 Degree Degraded Area = 43.22%

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R24 C42 Plus Point Cimbated Probe 300 kitt Band Pass Filtering (Iow 17, high 105, 23 coef)

Flaw Length Degraded Area = 69.28%

Length = 180 deg.

Dia. = 0.To00 360 Degree Degraded Area = 34.64%

Nax Depth = 97%

Wall = 0.0430 100--

80 -

60 -

ZTW 40 -

20 -

_l.

90 180 270 360 Circumferential Extent (degrees) 06:21 12/12/95 (ver 01)

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'DEttets TW EST! MATE 105 00 0.00 115-25 250.00 125 75 750.00 135:

75

.750.00

-145

' 78.

780.00 155 81 -

810.00 165-58 580.00 175 62 620.00 185 86 860.00 i

195 79

'790.00

.205 71 710.00' 215 90 -

900.00 225 '

67 670.00 235 72 -

720.00 245 70 :

.700.00 255 79 790.00 265

' 97 ~

~970.00 275 82 -

820.00

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00 0.00 Tube Die

  • 0.7500 Wall Thickness = 0.0430

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Flaw Length Degraded Area = 69.28%

360 Degree Degraded Area = 34.64%

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R24 C42 (Intersect cire. at 270 des)

Plus Point Cimbated Probe 300 kHz Band Pass Filtering (lov 17, high 105, 23 coef)

Flav Length Degraded Area = 47.41%

Nax Depth = 72Z 14all = 0.0430 100.

80 -

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60 -

25 l

40 -

t l

20 l

l l

l l

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-0.00

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-0.20 0.00 0.20 0.40 0.60 0.80 Axial Extent (inches) 06:23 12/12/95 (ver 01) i I

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R24 C42 (Intersect cire, et 270 dog)-

4 c-LOCATION 2 TW ESTIMATE 000 00-0.00-1 000

-72 2.16 000

'53 2.12 000 60 1.80 000 52 2.08' 000 51 1,53 000 47 1.88' 000 41 1.23 l

000

' 00

-0.00 1

Wall Thickness = 0.0430 Flow Length Degraded Area a 47.41%.

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R14 C93 Plus Point Gisbaled Probe 300 kHz Band Pass Filtering (lov 17, high 105, 23 coef)

Flaw Length Degraded kea = 24.07%

Length = 268 deg.

Dia. = 0.7500 l

360 Degree W aded Area = 17.922 Hax Depth : 25Z Liall = 0.0430~

100--

80 -

L 60 -

ITW 40 -

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-A14 C93-DEGREES TW ESTIMATE 000 00

' 0.00 008-25 200.00.

018

- 25 250.00 028.

25 250.00 a

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. 25

.250.00 048 25 250.00 l'

! 058 25 250.00

,068 25 250.00

~ 068 25 0.00' 078

- 25 250.00 078 25

-0.00 f ' 088 25 250.00 008 25 0.00

- 096 25 250.00 2

108 25 250.00' 118-25 250.00 128

- 25.

250.00 138

'25 250.00 i 1148 25 250.00 t

158-

- 25 250.00

168

~ 25 '

'250.00 178 25

-250.00 187 25 225.00 1.

188 25 25.00 198 25 250.00 4

3 208 25 250.00 218

- 25 250.00 228 25 250.00 238 25 250.00 248 25 250.00 258.

25 250.00 000 00 0,00 3T @e Ole, e 0.7500 lWell Thickness = 0.0430 t

{FlowLen8thDegradedArea=24.07%

360 Degree Degraded Area = 17.92%

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R27 C48 Plus Point Cimbaled Probe 300 Hiz Band Pass Filtering (low 17, high 105, 23 coef)

Flaw Length Degraded Area = 27.50%

Length = 170 deg.

Dia. = 0.7500 360 Degree Deyaded Area = 12.99%

Nax Depth = 53Z Wall = 0.0430 100--

80 -

60 -

ZTM 40 -

\\_____

20 -

f 90 180 270 360 Circunferential Extent (degrees) 06:12 12/12/95 (ver 01)

R27 C48

' DEGREES'

- TW EST! MATE 055 00 0.00 065 25 250.00 075-25 250.00 085 25 250.00 095 10 100.00 105-25 250.00 115

. 25 250.00 125 25 250.00 135 28 280.00 147 59 708.00 156 59 531.00 165 34 306.00

-175 25 250.00 185' 25 250.00 195-

,25 250.00 205 25 250.00

'215' 25 250.00-l 055 00 0.00 Tube Dio. = 0.7500.

. Watt Thickness = 0.0430 Flaw Lanoth Degraded Area = 27.50%

, 360 Degree Degraded Area = 12.99%

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R38 C55 Plus Point Gimbaled Probe 300 k &

Band Pass Filtering (low 17, high 105, 23 coef)

Flaw Length Degraded Area = 29.63%

Length = 309 deg.

Dia. = 0.7500 360 Degree Defaded Area = 25.43%

Max Depth = 75%

Wall = 0.0430 100--

80 -

60 -

ZTM 40 -

I I

20 -

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l -

b 90 180 270 360 Circumferential Extent (degrees) 06:15 12/12/95 (ver 01)

~

.. _ ~

R38 C55 DEGREES TW ESTIMATE 008 00 0.00 018 25 250.00 028 -

25 250.00 034 25

'250.00 047.

25 225.00 057 25 250.00 067 25 250.00 076 33 297.00 087 25 275.00 097 25 250.00 107 25 250.00 117 11 110.00

.128 25 275.00 138 25 250.00 148 25 250.00 158 23 230.00 168 08 80.00 178 43 430.00 4

188

-49 490.00 198.

48 480.00 208 45-450.00 218-54 540.00 a

228 22 220.00 237 25 225.00-247 25 250.00 257 44

.- 440,00 3

266 25 225.00 278 00 -

0.00 287 27 243.00 297 67 670.00 307 75 750.00 008 00 0.00 Tube Dio. = 0.7500 Wall Thickness = 0.0430 fles Length Degraded Area = 29.63%

360 Degree Degraded Area = 25.43%

R14 C37

~

Plus Point Cimbated Probe 300 kHz Band Pass Filtering (low 17, high 105, 23 coef)

Flaw Length Degraded Area = 40.51%

Length = 350 deg.

Dia. = 0.7500 360 Degree Degraded Area = 33.33%

Hax Depth = 97%

Wall = 0.0430 100--

l l 80 -

60 -

%TW 40 l

l l

l 90 180 270 360 Circumferential Extent (degrees) 06:26 12/12/95 (ver 01)

W

1 R14 C37-OfgAEES '

TW

' ESTIMATE

-000-87 870.00 010 25 250.00 020 25 250.00

- 030

~ 25 250.00 040 66 660.00 050 46 460.00 060 57 570.00 070 45 450.00 000 19 190.00 090

-47 470.00

.100 82 820.00 110 73 730.00

-120 25 250.00

.130 42 420.00 140 23 230.00 150 25 250.00 160 74 740.00 170

- 97

.970.00 180 84' 840.00 190 l 25 250.00 200 25 250.00 210 25 250.00 220' 16 160.00 230 25 250.00 250 25 250.00 250 25-250.00 260 25 250.00 1

270 25 250.00 280 25

'250.00

-290 18 180.00 I

300 25 250.00 310 25 250.00 320 25 250.00 330 25 250.00 340 18 '

180.00 000 87 740.00 tube Die. = 0.7500 Wall Thickness = 0.0430 Flaw Length Degraded Area = 40.51%

360 Degree Degraded Area = 39.39%

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