Text

Steam Generator (#22) & Pressurizer Flaw Evaluations
	ML031040109
Person / Time
Site:	Prairie Island
Issue date:	04/04/2003
From:	Solymossy J; Nuclear Management Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	L-PI-3-030 2002U010
	Download: ML031040109 (135)
	v • d • e

N Exc e Praire Island Nuclear Generating Plant Operated by Nuclear Management Company, LLC Committed to Nuclear L-PI-03-030 April 4, 2003 10CFR50.55a U S Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555 PRAIRIE ISLAND NUCLEAR GENERATING PLANT DOCKET NOS. 50-282 AND 50-306 LICENSE NOS. DPR-42 AND DPR-60 UNIT 2 STEAM GENERATOR (#22) AND PRESSURIZER FLAW EVALUATIONS During the Unit 2 refueling outage in February-March 2002, ultrasonic examinations of steam generator #22 and the pressurizer were performed in accordance with American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code Section Xl.

The third interval plan for Prairie Island was written to conform examination of Class 1, 2, and 3 components to the 1989 edition, no addenda, of ASME Section Xl.

For steam generator #22, third period, third interval examinations were done to satisfy the follow-up requirements according to IWB-2420 for flaws identified during the first period, third interval and submitted for NRC review on May 6, 1997 and during the second period, third interval and submitted for NRC review on May 13, 1999. During the follow-up examinations, sixteen flaws identified in the tubesheet to channel head weld region exceeded the allowable flaw size when evaluated against the standards provided in ASME Section XI, IWB-3500. Accordingly, we performed analytical evaluations of these flaws per ASME Section Xi, IWB-361 0. These flaws were found acceptable per these analyses. Attached for your review are the results of these evaluations.

For the pressurizer, examinations were done to satisfy the base examination requirements for the third period of the third interval. During the examination, one indication was identified in the bottom head to shell weld region which exceeded the allowable flaw size when evaluated against the standards provided in ASME Section Xl, IWB-3500. Accordingly, we performed an analytical evaluation of this flaw per ASME Section XI, IWB-3610. This flaw was found acceptable per this analysis. Attached for your review are the results of this evaluation.

The procedure used for these evaluations is contained in WCAP-14166, which was approved by the NRC by letter dated September 6, 1995, addressed to Mr. Roger 0. Anderson, Northern States Power Company.

1717 Wakonade Drive East

Welch, Minnesota 55089-9642 Telephone: 651.388.1121 . j

USNRC NUCLEAR MANAGEMENT COMPANY, LLC L-PI-03-030 Page 2 This letter contains no new commitments and no revisions to existing commitments.

Please contact Jack Leveille (651-388-1121) if you have any questions related to this letter.

Joseph M. Solymossy Site Vice President, Prairie Island Nuclear Generating Plant CC Regional Administrator, USNRC, Region III Project Manager, Prairie Island Nuclear Generating Plant, USNRC, NRR NRC Resident Inspector - Prairie Island Nuclear Generating Plant Attachments:

1. UT Vessel Examination, Outage No: Pl2RF2002, Report No: 2002U010

2. UT Vessel Examination, Outage No: P12RF2002, Report No: 2002U021 1717 Wakonade Drive East

Welch, Minnesota 55089-9642 Telephone: 651.388.1121

ATTACHMENT I NUCLEAR MANAGEMENT COMPANY, LLC PRAIRIE ISLAND NUCLEAR GENERATING PLANT, UNIT 2 DOCKET NO. 50-306 LICENSE NO. DPR-60 LETTER NO. L-PI-03-030 UT Vessel Examination, Outage No: P12RF2002, Report No: 2002U010 121 pages follow

PAGE -XI OF -1S2 WARD UT Vessel Examination REPORT#

Site/Unit: NIMC I P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 Summary No.: 502618 Procedure Revision/FC: 9 I Report No.: 2002U010 Workscope: IsI Work Order No.: 0106946 Page: 1 of 7 Code: 1989 Code Cat.: B-B Location: SG 22 Drawing No.: 2-ISI- 37B

Description:

Tube Sheet to Head System ID: SG Component ID: W-A Size/Length: 426" Thickness/Diameter 5.50" / 135.67" Limitations: Welded 2" x 2" pads and Insulation rings. Start Time:

Finish Time:

Examination Surface: Inside f1 Outside RI Surface Condition: Ground Flush Lo Location: Centerline of Hot Leg Wo Location: Centerline of Weld Couplant: Sonotrace 40 Batch No.. #001 43 Temp. Tool Mfg.: Telatemp Serial No.: NSP 179 Surface Temp.: 87 OF Cal. Sheet No.: 2002CA005, 2002CA006. 2002CA010 Angle Used 0 1 45 1 45T l 60 1 60T l Scanning dB 37.0 53.0 53.0 64.9 64.9 1 1 Indication(s): Yes0 No°l Scan Coverage: Upstream i Downstream 1A CW I CCWW Comments:

See previous datasheets for scan limitations.

0 Degree and 45 degree exam performed on 2/0512002, 1300 to 1600. 60 Degree exam performed on 210612002, 1245 to 1640.

Results: NAD E IND W GEO El Percent Of Coverage Obtained > 90%: Yes Reviewed Previous Data: Yes Examiner Level II Signature Date Reviewer Ad1 Signature Date Thomas, Travis / ~ 21612002 Clay, Sean P. I 'jcgeatu 4V IT-Examiner Level I Signatur Date Site Review Signature Date Knott, Brian j,?

K 216/2002 Wren, Jerry P. /r - 4- 2-/ oz Other Level Signature Date ANII Review C i nature Date NIA I Clow, Ron / C og/ /,/

PAGE of- OF 1a}

Ultrasonic Indication Report PEP(OPTH

_wb Outage No.: P12RF2002 Site/Unit: NMC P12 Procedure: ISI-UT-3 Summary No.: 50:2618 Procedure Revision/FC: 9 I Report No.: 2002U010 Workscope: ISI Work Order No.: 0106946 Page: 2 of 7 Search Unit Angle: 45 & 60 Degree a o Piping Welds Wo Location: Centerline of Weld (3 Ferritic Vessels > 2"T

- a_ + en. -A8 LI-&.. I LU LWUOLIVII.: %IUEIIlIIIUVInVL LegM

-l ( ) Other _

MP Metal Path Wmax Distance From Wo To S.U. At Maximum Response RBR Remaining Back Reflection W1 Distance From Wo At 20% Of Max (Forward)

L Distance From Datum W2 Distance From Wo At 20% Of Max (Forward)

Comments: None Scan Indication % W Forward Backward LI L L2 RBR Remarks No. Of Max Of Max Of Max Of Max Of Amp.

DAC W MP WI MP W2 MP Max Max 45 DEGREE SCAN 4 1 28% 95.0 1.918 94.2 1.413 95.7 2.372 .75 1.0 1.2 N/A Skewed towards head side approximately 20 degrees.

4 2 45% 111.1 3.633 110.6 3.178 112.1 4.291 .4 .9 1.2 N/A Skewed towards head side approximately 20 degrees.

4 3 80% 179.0 6.368 178.3 6.064 179.3 6.756 .4 .5 .95 N/A Tube Sheet Side 3 4 55% 212.0 4.688 205.4 4.240 204.03 5.090 2.3 2.9 3.6 N/A Head Side 3 5 50% 235.5 4.442 236.4 3.939 234.8 4.949 2.4 3.0 3.5 N/A Head Side 3 6 68% 329.9 3.888 330.9 2.827 328.9 4.344 2.4 2.6 3.6 N/A Head Side 4 7 26% 351.5 2.120 351.1 1.918 351.9 2.474 1.5 2.3 2.5 N/A Head Side 3 8 85% 360.05 4.894 361.0 4.591 359.5 5.505 2.2 2.4 3.0 N/A Skewed towards head side approximately 20 degrees.

Examiner Level 1I Signature Date Reviewer k Signature Date Thom262002 Clay, Sean P. / 4,, . 7 2 5j; Examiner Level Signature Date Site Review Signature Date Knott,2Br6an /2612002Wren, Jerry P. IG 6 -l Other Level NA Signature Date ANII Review ) Signature Date N/A Clow, Ron Gr'/2,/a 0

PAGE 3 OF 1,1 I Pu Supplemental Report ?, I -) _T_ _

Report No.: 2002U010 Page: 3 of 7 Summary No.: 502618 .

Examiner: Thomas, Travis .

Level: II Reviewer: Clay, Sean P. Date: I-Examiner: Knott, Brian Level: II Site Review: Wren, Jerry P. Date: _ _- _ _-

Other NIA Level: NIA ANII Review: Clow, Ron Date: _____ilo__

Comments. See previous data sheets 97-0136R2,97-0135R1 and 97-0136R2 for scan limitations.

Sketch or Photo: G UDDEAL50\P12RF02002\SUPPLEMENTAL UT\2002uO1O_1.bmp STrfti GiRbAirP_ \ #- aL IN5 RlaG ft~

cI . 4 IN ar CL4 t6 0 Lc J

MZEL CILN7.LLIN6--

A ' LA 3

1PJ I, , t e--

I 1t i ).

1, A R P,

MNS. ?RVOG

PAGE I OF 1L.1 Determination of Percent Coverage for REPORT#

4&7 UT Examinations - Vessels Site/Unit: NMC I P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 Summary No.: 502618 Procedure Revision/FC: 9 l Report No.: 2002U010 Workscope: ISI Work Order No.: 0106946 -

Page: 4 of 7 0 dea Planar Scan 100.000 % Length X 95.600 % volume of length/ 100 = 95.600 % total for 0 deg 45 dea Scan 1 100.000 % Length X 98.400 % volume of length 1100 = 98.400 % total for Scan I Scan 2 100.000 % Length X 97.600 %volume of length 1100 = 97.600 % total for Scan 2 Scan 3 100.000 % LengthX 100.000 %volumeoflength/100= 100.000 °%totalforScan3 Scan 4 100.000 % Length X 100.000 %volume of length /100 = 100.000 %total for Scan 4 Add totals and divide by # scans = 99.000 % total for 45 dog Other dea 60 Scan 1 100.000 % Length X 98.400 % volume of length I100 = 98A400 % total for Scan 1 Scan 2 100.000 % Length X 86.700 %volume of length 1 100 = 86.700 % total for Scan 2 Scan 3 100.000 % Length X 100.000 %volume of length /100 = 100.000 % total for Scan 3 Scan4 100.000 % LengthX 100.000 %volumeoflength/ 100= 100.000 %total for Scan4 Add totals and divide by # scans = 96.275 % total for 60 deg Percent complete coverage Add totals for each angle and scan required and divide by # of angles to determine; 96.958 % Total for complete exam Note:

Supplemental coverage may be achieved by use of other angles / methods. When used, the coverage for volume not obtained with angles as noted above shall be calculated and added to the total to provide the percent total for the complete examination.

Site Field Supervisor: Jerry Wren n7 Lg /xatiI Date: d-/$ %'-C"7

PAGE 5- OF la)

REPORT_

ISI Flaw Sizing Worksheet pig P12 Procedure: ISI-UT-3 Outage No.: Pi2RF2002 Sitel'Unit: NMC I 502618 Procedure Revision/FC: 9 1 Report No.: 2002U010 Summary No.:

tM-6r n-4-r Kj - lilAQAA Page: 5 of 7 Workscope: __I_"a_ I V___U_____U . .. _____

1) Flaw Number See Attached 3) ISI Interval 3rd Interval 0 OK Reviewer B2.40 4) Code Edition &Addenda 89 no addenda 0 OK Reviewer

2) Item Number

5) Method UT

6) Flaw Sketch (See Below) 0 OK Reviewer Flaw View

7) Calculations 0 OK Reviewer _

Show determination of Surface or Subsurface See Attached Sheets for Indications 45 Deg. 1 through 13 and 60 Deg. 1 through 13.

Show determination of type of "a' to use See Attached Sheets for Indications 45 Deg. I through 13 and 60 Deg. I through 13.

0 Yes Preparer o OK Reviewer -

8) ISI-FE-1 Paragraph 7.0 - "Rounding-off Method' was used

9) Code Flaw Dimensions 0 OK Reviewer _

It moasurod " = "S. = ~ W. = ~

l"I= - "a" = - t nominal I =

10) Flaw Type 0 OK Reviewer Subsurface Planar (UT/RTI

11) Flaw Characterization Figure 0 OK Reviewer

12) Flaw Characterization Figure Number

13) Was IWA-3300 Flaw Characterization followed? i Yes 0 No If no, why?

_ _K Reiee 0 Yes Preparer U) OK Reviewer .

14) The correct Code Edition and Addenda was available and used.

15) Prepared by and date 16) Review by and date Sean P. Clay Jerry P. Wren The review assures that the results are correct and the The results are correct and the methodology used is in accordance with applicable codes, standards, specifications and methodology used is in accordance with applicable codes, standards, specifications and procedures.

procedures.

PAGE k .OF 11a)

,Mj ~ ISI Flaw Disposition Worksheet RE_ _

_-'_,RT _._.

Site/Unit: NMC I P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 Summary No: 502618 Procedure RevisionlFC- 9 1 - Report No.: 2002U010 -!RL Workscope: IMI IS, Work Order No.: 0106946 Page: 6 of ...A*.

0-I5s0

1) Flaw Number Ho 3) ISI Interval 3rd Interval 0 OK Reviewer

2) Item Number B2.40 4) Code Edition & Addenda 89 no addenda 0 OK Reviewer _ _

5) Acceptance Standard 0 OK Reviewer

6) Calculations (See Below) 0 OK Reviewer _ _

See attached sheets for flaw dispositions on 45 dog. Indications I through 13 and 60 deg. I through 13.

7) Results 0 OK Reviewer Code allowable alt% = Calculated a/tt% = Laminar flaw surface area: (0.75 l w) = -

al =

8) Table used for analysis 0 OK Reviewer _ _

9) Was linear interpolation used? (3 Yes 0 No If no, why?

10) Was IWA-3200 Significant Digits For Limiting Values followed? G Yes 0 No If no, why?

11) The correct Code Edition and Addenda was available and used. 0 Yes Prep arer )0OK Reviewer

12) Statement of acceptability or rejectability with basis. 0 OK Reviewer Accept 0 Reject o (aft) Code allowable > (alt) calculated o OEM flaw evaluation handbook (see attached analysis) o (alt) Code allowable < (alt) calculated

13) Prepared by and date 14) Engineeriinig review by and date The results are correct and the methodology used is in accordance This review, assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology ( used is in accordance with applicable codes, standards, specifications and procedures

15) Approved by and date the This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity that the results and methodology are correct and in accordance with applicable codes, standards, specifications and procedures.

PAGE 7 OF 121l OW > Ultrasonic Indication Report Continuation Site/Unit: NMVC I P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 Summary No.: 502618 Procedure Revislon/FC: 9 1 _. Report No.: 2002U010 Workscope: ISI Work Order No.: 0106946 Page: 7 of 7 I I F F I I T F Scan Indication w Forward Backward Li L L2 RBR Remarks No. Of Max Of Max Of Max Max Amp.

Of Of DAC w MP I WI MP I W2 l MP Max Max 3 9 28% 364.6 2.976 364.9 2.776 364.4 3.178 1.5 1.7 1.9 N/A Skewed towards head side approximately 20 degrees.

3 10 25% 365.0 1.967 365.4 1.816 364.4 2.372 1.0 1.3 1.8 N/A Head Side 4 11 28% 389.3 7.079 389.0 6.860 389.8 7.434 3.3 3.6 4.2 NIA Head Side 3 12 30% 390.0 5.903 390.5 5.605 387.5 6.786 1.7 2.5 2.7 N/A Head Side 3 13 60% 388.0 7.222 388.4 7.023 387.5 7.725 2.4 2.5 3.5 N/A Skewed towards head side approximately 20 degrees.

2 14 100%+ 8.3 7.932 6.9 7.864 10.5 9.850 N/A Tube sheet geometry 360 degrees Intermittent.

60 DEGREE SCAN 4 1 118% 95.75 2.16 95.00 1.75 96.07 3.08 1.9 2.2 2.7 N/A 4 2 40% 118.0 5.07 117.7 4.58 119.1 5.41 3.0 3.3 3.8 N/A 3 3 38% 139.2 6.74 140.2 5.91 138.0 7.65 .2 0.0 .2 N/A 3 4 68% 136.5 5.08 137.2 4.50 136.2 5.41 3.6 4.0 4.5 N/A 4 5 40% 213.5 2.83 213.0 2.33 214.7 3.99 2.2 2.4 3.2 N/A 4 6 25% 308.4 4.49 307.7 3.99 309.5 5.50 2.1 2.3 2.9 N/A 3 7 31% 328.0 5.24 328.5 4.74 327.1 5.80 2.3 2.5 3.2 N/A 3 8 25% 344.1 7.08 346.1 6.66 342.0 8.99 1.8 2.0 2.2 N/A 3 9 92% 2.90 6.74 2.10 5.66 4.00 7.57 364.5 365.2 365.8 N/A 4 10 45% 364.4 4.25 363.8 3.83 364.9 4.83 .9 1.3 1.9 N/A 4 11 65% 390.5 9.24 390.1 9.04 390.9 9.83 1.8 22 2.4 N/A 3 12 53% 385.0 10.65 385.4 10.31 384.07 10.97 2.0 2.2 2.4 N/A 4 13 50% 395.6 1.75 394.5 .99 396.0 2.41 .08 1.1 1.3 N/A 4 14 25% 387.6 6.66 _ 1.0 . N/A Spot Indication Examiner Level 11 ,Signature Date Reviewer V Signature Date Thomas, Travis / 2/6/2002 Clay, Sean P. _ 4 _' T I*IAZ Examiner Level 1 . Signature Date Site Review ( _ Sigpature Date Knott, Brian I tCGC*? 4-<5-z 2/6/2002 Wren, Jerry P. / 2 -4a -cr z..

Other Level N/A Signature Date ANII Review Signature Date N/A I Clow, Ron / 6 PAGE 1_ _OF ISI Flaw Sizing Worksheet

$isD r'!n4',Tq

/ P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 Site/Unit: NMC 502618 Procedure Revision/FC: 9 / _ Report No.: 2002U010 Summary No.:

let Wnrlt Arrfor MN - 0106946 Page: - of workscope: aul . _ -..

3) ISI Interval 3rd Interval Z OK Reviewer

1) Flaw Number B2 40 4) Code Edition & Addenda 89 no addenda ) OK Reviewer vL _ ..

2) Item Number

5) Method UT v61

6) Flaw Sketch (See Below) ZL OK Reviewer Flaw View 93.6" p CL 1.2" Lid -67 Tube Sheet .75' Head "L"= .45" End View Side View Of Tube Sheet Weld CL IN

7) Calculations (3 OK Reviewer p Head Show determinabon of Surface or Subsurface Ton View See attached sheets focalculations.

Show determination of type of 'a' to use See attached sheets fokcalculatlons.

5t-y (X OK Reviewer 2t

8) ISI-FE-1 Paraqraph.-e- "Roundinq-off Method" was used (3 Yes Preparer

9) Code Flaw Dimensions 03) OK Reviewer NIA 5.5 Is' = .9O W=

_7 a" a' = It nominal = NIA It measured"

10) Flaw Type V OK Reviewer -Subsurface PlanarQAET!

11) Flaw Characterization Figure q OK Reviewer I/WA-3320-1

12) Flaw Characterization Fiqure Number E__Aix)

13) Was IWA-3300 Flaw Charactenzation followed? 0 Yes 0 No If no, why?

OK Reviewer Preparer St () OK Reviewer !76

14) The correct Code Edition and Addenda was available and used. (i Yes 16ang31f) >

15) Prepared by and date

5PQv'A Y. CL.AU -- ___

The review assures that the results are correct and the The results are correct and the methodology used is in methodology used is in accordance with applicable codes, accordance with applicable codes, standards. specifications and standards, specfications and procedures.

procedures.

PAGE 9 OF I9(

ISI Flaw Disposition Worksheet NFOD Procedure: 7E-5 -edd 3 Outage No: ?"c2 , F 2 .?

Site/Unit: t'61 i l 2 9 No:

ReportNo: V2Goc1l C Summary No.: < 6 6/8' Pr 'ocedure RevisionlFC: I Workscope: Z5 Work Order No.: O/o6 9q;V Page: of

3) ISI Interval _ _,_/ (/"'OK Reviewer

1) Flaw Number A0/ _

4) Code Edition & Addenda /, ; 9 A,. , ;' OK Reviewer fM4.

2) Item Number ,-,; i3 ,Z .M4a

5) Acceptance Standard : ' - (Y OK Reviewer Q .JO1

.Z= .70; Z =- -.

Q'OK Reviewer A3;

6) Calculatons (See Below) at :- .3~3.5 5 -7. St>v 3!d/ae f4d-rf7-V~f .,-4-3 -,

-45, ,)a

-0"'v 4V - el' = 7

-e--

ap i, = 7 c-Y

,5 f ,04' / e11 e, = G.5/

-eT. ~;

c;6 70 b> a/2ll ,

decoy0

7) Results G'OK Reviewer all = _2' Code allowable a/t% = 7, , ': Calculated a/t% = G ft Laminarflawsurfacearea:(0.75 l w)=_ovum

8) Table used for analysis G'OK Reviewer rec.L3 - ^-A Ho

9) Was linear interpolation used? 0 Yes (k No If no, why?

10) Was IWA-3200 Significant Digits For Umiting Values followed? @ Yes 0 No If no, why?

tYes Preparer do (3 OK Reviewer

11) The correct Code Edition and Addenda was available and used.

12)Statementofacceptabilityorrejectabilitywithbasis. (B3OKReviewer 0 Accept 0 Reject

(aft) Code allowable > (alt) calculated o OEM flaw evaluation handbook (see attached analysis) o (aft) Code allowable < (alt) calculated

13) Preparedby and date 14) Egineeri ie by and date

_____/ a?2/, '/ E-/- _______;13CZ The results are correct and the methodology used is in accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used is in accordance with applicable codes, standards, specifications and procedures.

15) Approved by and date that the results and the This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity and procedures.

methodology are correct and in accordance with applicable codes, standards, specifications

Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented in plane normal to pressure retaining surface ASME SECT Xl 1989 WI NO ADDENDA SPC INITIAL TO VERIFY ISI Report # 2002U010 Evaluation Performed By: S. Cay Date:02110/02 Flaw # #1 Reviewed By: J. Wren S),)Put) Date:02110102 Lenath Length of the flaw Tr is determined by finding the difference between Li and L2 for perpendicular scans, W1 and W2 for parallel scans.

L and W values are from page 2 of the UT report.

1= .75" (L2) - 1.20" (L1) = -.45" inches.

Thickness Thickness of the component at the location of the flaw, using r nom wall (circle one).

This value is from page 1 of the UT report.

"t" = 5.50 inches Calibration The measured angle in the calibration block was 460 degrees Calculations using metal path From page 2 of the UT report, Scan # 4 The flaw exhibited 20% DAC at 1.413 and 2.372 inches MP. Max amplitude is 1.918 inches MP with the transducer exit point at 1.0 inches from the centerline of the weld and 95.0 inches from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)

) Determine correction factor due to curvature.

Radius = 67.94" (R). Surface distance to max amp point = 1.38" ( C). CIR = .0203 TAN.

INVTAN= 1.164 .COS= .999 .(R/COS)-R= .068" correction factor.

1) Determine the upper depth of the flaw from the exam surface.

1.413" (metal path at 20% upper)

COS of the measured angle 460 = .981" - .068" correction factor = .913 inches depth.

2) Determine the lower depth of the flaw from the exam surface.

2.372" (metal path at 20% lower)

COS of the measured angle 460 = 1.648" - .068" correction factor = 1.580 inches depth.

3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.

1.918" (metal path at maximum amplitude point)

COS of the measured angle 46 = 1.332"

- .068" correction factor = 1.264 inches depth.

4) Determine the distance from 0" reference to the maximum amplitude point of the flaw.

(a2) 1.918" (metal path at maximum amplitude point) squared = 3.679 2

1.332" (depth at maximum amplitude point, before correction) squared = 1.77 (b )

4 a _b = 1.380 inches of surface distance to the flaw from the transducer exit point.

2 2 95.0 (Lmax) + or - 1.38" (surf dist) = 93.62 inches from 0" reference.

( + or - based on scan direction)

5) Determine S by picking the smaller of the following; S = .913" (result of 1) = distance between exam surface and the upper flaw tip

>> OR c<

S = 5.50" (part 't") - 1.580" (result of 2) = 3.920" distance between the side opposite exam surface and the lower flaw tip

6) Determine 2d in though wall thickness.

1.580" (from step 2) - .913" (from step 1)= .667 inches.

PAGE i. OF J2t REPORTH

Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented in plane normal to pressure retaining surface Determination of surface or subsurface 0.4d = (2d / 2)

0.4 = .133" Compare to S (from step 5)

If S is less than 0.4d, the flaw is surface. a = 2d + S = N/A inches.

If S is greater than or equal to OAa the flaw is sub-surface. a = 2a 12 = .334 inches.

I= .70" (for aA > 0.5, l = 2a) t= 5.5" (part thickness) a= .35" (surf or( @ circle one) S= .90" PAGE - Il OF 12 L

EPO RTY __

PAGE I2_ -OF_ _ _

WD ISI Flaw Sizing Worksheet REPORTH Site/Unit: NMC I P12 Procedure. ISI.UT-3 Outage No.: P12RF2002 Summary No.: 502618 Procedure Revision/FC: 9 1 - Report No.: 2002U010 AMnrerenna-I k-l%

Jc. *_-

Work wea Order No-:

0106946 Page: _

of 1

1) Flaw Number 3) ISI Interval 3rd Interval 9 OK Reviewer :K.)

2) Item Number B2.40 4) Code Edition & Addenda 89 no addenda (iROK Reviewer ZJ

5) Method UT

6) Flaw Sketch (See Below) q OK Reviewer W V-Flaw View 108.49" CL 1.2" L 2.10" Tube Sheet Head M .73"

'.4-L = .80" End View Side View Oe Tube Sheet II

-1 108.49" Weld CL ------- f----------------------=------------------------------

11

7) Calculations ($ OK Reviewer 9phW Head Show determination of Surface or Subsurface Top View See attached sheets fo calculations.

Show determination of type of 'a' to use See attached sheets fo calculations.

8) ISI-FE-1 ParaqraphW- Roundinq-off Method' was used i) Yes Preparer Si, & OK Reviewer _____

9) Code Flaw Dimensions OK Reviewer 2L._

.S.= ?.Iit. W = N/A or= 1) Ca,= . LID 4 tfnominal, = N/A - tmeasured' = 5.5

10) Flaw Type $ OK Reviewer He'd Subsurface Planar 6fRn

11) Flaw Charactenzation Fiqure { OK Reviewer [WA-3320X1

12) Flaw Charactenzation Fiqure Number -LAWA X I

13) Was IWA-3300 Flaw Characterization followed? Yes 0 No If no, why?

14) The correct Code Edition and Addenda was available and used. O Yes Preparer S& POK Reviewer

15) Prepared by and date V 16) Rey ew by and date J -- 1A0 - C'o ! 2 Ad aZ-/t-*?

epa\& . Ciggt4 -

The results are correct andkhe methodology used is in The review assures that the results are correct and the accordance with applicable codes, standards, specifications and methodology used is in accordance with applicable codes, procedures. standards, specifications and procedures.

PAGE 13 OF ta1 ISI Flaw Disposition Worksheet REP°RT _

Site/Unit: /Ywe- I 2- 2 Procedure: 7sr-t~r-3 Outage No.: j Summary No.: 5e%9- 6 / Procedure RevisionlFC: 9 1 Report No.: DWOO2 ec/),1 Workscooe: rSZ-5 Work Order No.: 9 9/o 9YY Page: _ of

1) Flaw Number _ _ _ _ _ 3) ISI Interval 3 /. (VOK Reviewer AI -, .. . (3/OK Reviewer , W

2) Item Number B-A3' ,B .- V6 4) Code Edition & Addenda /19*'8

5) Acceptance Standard GAB0z0 - 3'cf/0 (3/OK Reviewer _____

6) Calculabons (See Below) (G-OK Reviewer gaze

/, , I -Do aY1 1Z- 716YII

, ,,,/, le-, A -

= 7 6 Z1 And YVC'-

e/ _ -a

.56

-=. 73

<£4<4;;0

7) Results eOK Reviewer a/l = . ,t> Code allowable a/t% = b Calculated alt% =7 Laminar flaw surface area: (0.75 l w) =*-4

8) Table used for analysis 0 OK Reviewer eB- 15Zp /{

9) Was linear interpolation used? 0 Yes t No If no. why?

1,0)Was zWcA-20nfca Di Fr Limiti -n V

10) Was IWA-3200 Significant Digits For Limiting Values followed? ;9 Yes 0 No If no, why?

I11) The correct Code Edition and Addenda was available and used. i) Yes Preparer , (U OK Reviewer Lve

12) Statement of acceptability or rejectability with basis. Q'OK Reviewer 90 Accept 0 Reject

(alt) Code allowable > (aft) calculated o OEM flaw evaluation handbook (see attached analysis) o (aft) Code allowable < (alt) calculated

13) Prepared by and date 14) Engineering review by and date w_ L' ____ _

The results are correct and the methodology used is in accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used is in accordance with applicable codes, standards, specifications and procedures.

15) Approved by and date and the This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity that the results methodology are correct and in accordance with applicable codes, standards, specifications and procedures.

Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented in plane normal to pressure retaining surface ASME SECT XI 1989 WI NO ADDENDA SPC INITIAL TO VERIFY ISI Report# 2002U010 Evaluation Performed By: S. Clay Date:02110I02 Flaw# #2 Reviewed By: J. Wren : Pld Date-: 2-/o-o 2-Length Length of the flaw "' is determined by finding the difference between LI and L2 for perpendicular scans, WI and W2 for parallel scans.

L and W values are from page 2 of the UT report.

l = .40" (L2) - 1.20" (LI) = -.80" inches.

Thickness Thickness of the component at the location of the flaw, usinjbr nom wall (circle one).

This value is from page I of the UT report.

"t"= 5.50 inches Calibration The measured angle in the calibration block was 46' degrees Calculations using metal path From page 2 of the UT report, Scan # 4 The flaw exhibited 20% DAC at 3.178 and 4.291 inches MP. Max amplitude is 3.633 inches MP with the transducer exit point at 0.9 inches from the centerline of the weld and 111.1 inches from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)

) Determine correction factor due to curvature.

Radius = 67.94" (R). Surface distance to max amp point = 2.613" ( C). C/R = .038 TAN.

INV TAN = 2.176 . COS = .999 . ( R/ COS ) - R= .068" correction factor.

1) Determine the upper depth of the flaw from the exam surface.

3.178" (metal path at 20% upper)

COS of the measured angle 460 = 2.208" - .068" correction factor = 2.140 inches depth.

2) Determine the lower depth of the flaw from the exam surface.

4.291" (metal path at 20% lower)

COS of the measured angle 460 = 2.981" - .068" correction factor = 2.913 inches depth.

3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.

3.633" (metal path at maximum amplitude point)' COS of the measured angle 460 = 2.524"

- .068" correction factor = 2.456 inches depth.

4) Determine the distance from 0" reference to the maximum amplitude point of2the flaw.

3.633" (metal path at maximum amplitude point) squared = 13.199 (a )

2.524" (depth at maximum amplitude point, before correction) squared = 6.371 (W2) 2 4 a -b = 2.613 inches of surface 2 distance to the flaw from the transducer exit point.

111.1 (Lmax) + or- 2.613" (surf dist) = 108.487 inches from 0" reference.

( + or - based on scan direction)

5) Determine S by picking the smaller of the following; S = 2.140" (result of 1) = distance between exam surface and the upper flaw tip

>> OR <<

S = 5.5 (part 't) - 2.913 (result of 2) = 2.587 distance between the side opposite exam surface and the lower flaw tip

6) Determine 2d in though wall thickness.

2.913" (from step 2)- 2.140" (from step 1) = .773 inches.

REPORT# _

Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented in plane normal to pressure retaining surface Determination of surface or subsurface 0.4d = (2d1 2)

0.4 = .155" Compare to S (from step 5)

If S is less than 0.4d, the flaw is surface. a = 2d + S = NIA inches.

If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a /2 = .386 inches.

C= .80" (for a/l > 0.5 = 2a) t= 5.50" (part thickness) a= .40" (surf o x circle one) S= 2.1"

PAGE -o or la I WD_ ISI Flaw Sizing Worksheet Site/Unit: NMC I P12 Procedure: ISI-JT-3 Outage No.: P12RF2002 Summary No.: 502618 Procedure Revision/FC: 9 1 - Report No.: 2002U010 AA1t-A WVl%-

- - t11 Wnrle I.----

Order No.

0if0646d __ . Page: of

1) Flaw Number #3 q50 3) ISI Interval 3rd Interval & OK Reviewer 'fl.

2) Item Number B2.40 4) Code Edition & Addenda 89 no addenda ( OK Reviewer

5) Method UT

6) Flaw Sketch (See Below) q OK Reviewer ,

Flaw View L" = .55" 174.42" I1 CL Tube Sheet .95" Head j -. 48" .4

+.94 End View Side View O- Tube Sheet I

%-I 174.42"

,M Weld CL _ - - _ - _- 1. - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --

_-_-_-_ -_ - _ I

7) Calculations ( OK Reviewer J Head Show determination of Surface or Subsurface Top View See attached sheets fo calculations.

Show determination of type of 'a' to use See attached sheets fo calculations.

8) ISI-FE-1 Paraqraph 7.e-"Roundinq-off Method" was used ( Yes Preparer () OK Reviewer 306J

9) Code Flaw Dimensions @59 OK Reviewer ,

Aim = E9i w = N/A O" = ..

jaw= . 5 -t nominal = N/A Itmeasured" = 5.5

10) Flaw Type ($ OK Reviewer J.t. Subsurface Planar

11) Flaw Characterization Fiqure OK Reviewer / IWA-3320-1

12) Flaw Characterization Fiqure Number FLAW'it

2

13) Was IWA-3300 Flaw Charactenzation followed? ( Yes 0 No If no, why?

. l

14) The correct Code Edi on and Addenda was available and used. ( Yes Preparer 5;t (P OK Reviewer :t

15) Prepared by and date s 161Rcview by and datq 27-l -G62

_5bAn 2 ICJ __-_ 9. w- -

The results are correct and r methodology used is in The review assures that the results are correct and the accordance with applicable codes, standards, specifications and methodology used is in accordance with applicable codes, procedures. standards, specifications and procedures.

PArCE 17 OF al RLE R 0OT _

NijD ISI Flaw Disposition Worksheet SitelUnit: A'4'Me/ iV Procedure: ;ZSZ-ur -3 .

Outage No.: P'i- -2 Sey,J rAL)

Summary No.: 54.2 4'/8 Procedure RevisionlFC. 9 I .

Report No.: ,;7o, £>;?

Workscope: >:zZ Work Order No.: C?/O9 996g Page: of

1) Flaw Number #3 3) ISI Interval _ _2_ _ _ _ - rOK Reviewer i-B 3.2.4/0 4) Code Edition & Addenda /19f< d - (9/OK Reviewer ALx-

2) Item Number e2.

5) Acceptance Standard _ c5 - 3570 ( OK Reviewer 4;W

.t q;S. ad

6) Calculations (See Below) C OK Reviewer

,, .2s-

'5= :- IV -

r16. . "'k--'e' ,5J.2i ,'5 Ki - e. 7Z/EM F = / twos~ raWzzf 35/0 /

a _ Ft , . I/ /

'a/z- =- u2- x loo a 4 4 Z. 5.50

% %> / '/. 7 9, > //. 5-9.

7) Results CROK Reviewer 7 an = , tl,5- Code allowable a/t% = C.-7 Calculated a/t% C

= - Laminarflawsurfacearea:(0.75 I w)=**Z

8) Table used for analysis WOK Reviewer ;Z@,3- i-/O_-

9) Was linear interpolation used? 0 Yes (a No If no, why?

10) Was IWA-3200 Significant Digits For Limiting Values followed? 4 Yes 0 No If no, why?

11) The correct Code Edition and Addenda was available and used. 0 Yes Preparer cc/ GOK Reviewer

12) Statement of acceptability or rejectability with basis. OK Reviewer .@,i. 4 Accept 0 Reject

(alt) Code allowable > (alt) calculated o OEM flaw evaluation handbook (see attached analysis) o (alt) Code allowable < (aft) calculated

13) Prepared by and date 14) En ineering r vie by and date

?-~93- .2 0'2-6y- ,- =E 7 The results are correct and the methodology used is in accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used is in accordance with applicable codes, standards, specifications and procedures.

15) Approved by and d t the results and the This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity that methodology are correct and in accordance with applicable codes, standards, specifications and procedures.

Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface ASME SECT Xi 1989 WI NO ADDENDA SPC INITIAL TO VERIFY ISI Report # 2002U010 Evaluation Performed By: S. Clay Date:02I10102 Flaw # #3 Reviewed By: - J. Wren -) Date:02I10102 Length Length of the flaw ' is determined by finding the difference between LI and L2 for perpendicular scans, W1 and W2 for parallel scans.

L and W values are from page 2 of the UT report.

l= .40" (L2) - 0.95" (LI) = -.55" inches.

Thickness Thickness of the component at the location of the flaw, usinS5or nom wall (circle one).

This value is from page 1 of the UT report.

"t" = 5.50 inches Calibration The measured angle in the calibration block was 460 degrees Calculations using metal path From page 2 of the UT report, Scan # 4 The flaw exhibited 20% DAC at 6.064 and 6.756 inches MP. Max amplitude is 6.368 inches MP with the transducer exit point at 0.5 inches from the centerline of the weld and 179.0 inches from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)

) Determine correction factor due to curvature.

Radius = 67.94" (R). Surface distance to max amp point = .4.581" (C). CIR = .0674 TAN.

INV TAN = 3.857 . COS= .998- . (RI COS ) - R = .136" correction factor.

1) Determine the upper depth of the flaw from the exam surface.

6.064" (metal path at 20% upper)

COS of the measured angle 460 = 4.212" - .136" correction factor = 4.076 inches depth.

2) Determine the lower depth of the flaw from the exam surface.

6.756" (metal path at 20% lower)

COS of the measured angle 46° = 4.693" .136" correction factor = 4.557 inches depth.

3) Determine the depth of the flaw from the exahi surface at the maximum amplitude point.

6.368" (metal path at maximum amplitude point)

COS of the measured angle 460 = 4.424"

- .136" correction factor = 4.288 inches depth.

4) Determine the distance from 0 reference to the maximum amplitude point of2the flaw.

6.368" (metal path at maximum amplitude point) squared = 40.551 (a ) 2 4.424" (depth at maximum amplitude point, before correction) squared = 19.572 (b )

2 va - = 4.580 inches of surface distance to the flaw from the transducer exit point.

179.0 (Lmax) + or - 4.580" (surf dist) = 174.420 inches from 0" reference.

( + or - based on scan direction)

5) Determine S by picking the smaller of the following; S = 4.076" (result of 1) = distance between exam surface and the upper flaw tip

>> OR <<

S = 5.50 (part t) - 4.557 (result of 2) = .943" distance between the side opposite exam surface and the lower flaw tip

6) Determine 2d in though wall thickness.

4.557" (from step 2) - 4.076" (from step 1) = .481 inches.

PU'^ _________

Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface Determination of surface or subsurface 0.4d = (2d 12)

0.4= .096" Compare to S (from step 5)

If S is less than 0.4d, the flaw is surface. a = 2d + S = N/A inches.

If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a /2 = .241 inches.

I = .55" (for a/l > 0.5, 1= 2a) t= 5.50" (part thickness) a= .25" (surf or A, circle one) S= .95" I

rAGE -2q. OF 1l21 ISI Flaw Sizing Worksheet WD Site/Unit: NMC I P12 Procedure: ISI.UT-3 Outage No.: P12RF2002 Summary No: 502618 Procedure Revision/FC: 9 I _ Report No.: 2002U010 Workscope: _SI Work Order No.: 0106946 Page: of 1)Flaw Number ." 'I Lq5 3) ISI Interval 3rd Interval 9 OK Reviewer 9PtW/

2) Item Number B2.40 4) Code Edition &Addenda 89 no addenda (k OK Reviewer 5 J

5) Method UT

6) Flaw Sketch (See Belc Q6OK Reviewer Flaw View _L = 1.3" 215.37" CL

- . I _________________________________________________________

! 3 6" aI .59" Tube Sheet Head 2.3" 2.01" End View Side View O- Tube Sheet 215.37" W eld CL ---------------- -------------- -------------- -------- _-_-_.

7) Calculations 5) OK Reviewer au) I Head Show determination of Surface or Subsurface See attached sheets fo calculations. Top View Show determination of type of "a' to use See attached sheets fo calculations.

8)1SI-FE-1 Paracraph - "Roundinq-off Method was used i Yes Preparer 7V OK Reviewer 9)Code Flaw Dimensions t OK Reviewer Spy ItmeasuredI = 5.5 .s' = g2. 00 Rw = NIA "l = 1,3 it -a = .. 3.L at nominal- = NIA

10) Fiaw Type 6 OK Reviewer 2eJ Subsurface Planar 0S1iRTn

11) Flaw Charactenzation Figure ) OK Reviewer SF IWA-3320-1

12) Flaw Characterization Fiqure Number ULA\)3 a

13) Was IWA-3300 Flaw Characterization followed? 0 Yes 0 No If no, why?

I OK Reviewer

14) The correct Code Edition and Addenda was available and used. (0 Yes Preparer ., A2 OK Reviewer W

15) Prepared and date (.k. 6 16)\Review by and date The results are correct and the methodology used is in The review assures that the results are correct and the accordance with applicable codes, standards, specifications and methodology used is In accordance with applicable codes, procedures standards, specifications and procedures.

PAGE 21 OF 0 a -

Nub ISI Flaw Disposition Worksheet R ?3 RT) _R___

Site/Unit. AlAe, I gc2 Procedure: z1- .3e7-- Outage No.: g ??/o22 Summary No.: 5od~e.° Procedure Revision/FC: '? I- _ Report No.: '7m4RdCAV6 Wnrkqnone: Work Order No.: o,:,, / -7 </ Page: of

1) Flaw Number F f 3) ISI Interval 30-°. (3/OK Reviewer ______

2) Item Number -a 32 ye L} 4) Code Edition & Addenda /'h9 XI, A4-4,-A ("OK Reviewer A L Al 5) Acceptance Standard Age-'?- 2? . /e> (<OK Reviewer 1gX e= S5)-D

6) Calculations (See Below) G"IOK Reviewer U.,

c5; -, ?I) 5-*Z. 6

,3 a/ Ao =4/ -7;_

ItX Ho0" - . 1?3 01 /.'" .,~5/ -~.o=.

L" ~ )

3 V

-.Z',3_ 310 / /?2 .*. 3.

6- '6 (3ASA (2,)t^3-..J) 33

( .73 -

,a= 6- - - - - -

. ,- (- '0 3X 3 4-~Y Z

~azjo zf.23 A.'/r,- A OVee !t/2t ' ,-k BYEI'll Act 4,2

7) Results ( OK Reviewer 4 an =

o1 3 Code allowable alt% = 3, 4 Ca Iculated alt% = 5. 5 Laminar flaw surface area: (0.75 l w) = PI

8) Table used for analysis (/OK Reviewer 8 -/ !/O- /

9) Was linear interpolation used? t Yes 0 No If no, why?

10) Was IWA-3200 Significant Digits For Limiting Values followed? @&Yes 0 No If no. why?

11) The correct Code Edition and Addenda was available and used. 0 Yes Preparer VGOK Reviewer Age

12) Statement of acceptability or rejectability with basis. eOK Reviewer At f( Accept 0 Reject o (alt) Code allowable > (alt) calculated

OEM flaw evaluation handbook (see attached analysis) v (alt) Code allowable < (aft) calculated FIO7e As ,f 1e.6/ x A-2

,11 Prannrntl bv anri dante - 14) Engineering review by and date lmC;;,2-j1.2 -';ZEk L_ 4C'C 2- - /i-I '-1 -Z-The results are correct and the methodology used is in accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used is in accordance with applicable codes, standards, specifications and procedures.

15) A wed by and date

-cu'c ,'t --1 / -

This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity that the results and the methodology are correct and in accordance with applicable codes, standards, specifications and procedures.

f',r 2. 1 QF-0, 002 a= .a0I W 0. 6 0 2. G '8C e = .5 . S0II 1

C

-F 2-.OF GLI QLcz)or OLLA F Cak -o .. AO'O Surface/Embedded Flaw Demarkatlon Une C 0.13 trnb! ddW Fla- FLAWS WITH nit ABOVE THIS UNE ARE 0.12 . . . . . .. . . . . .

NOT ALLOWABLE 0.11 . .. . .. . .. .

. . . . . . . . .. . 10, 20, 30 yrs.

0.1 . . . . .. . . . . .

0.09 . .. . .. . . . . . . . .

4- . . . . . . . . . . .

c 0.08 .. . . . . . . . . .. .

LL 0.07 D-0 M

- 0.06 Surfm*

Flaw$

C0

_ 0.05 I i iN i i i f, 0.04 . . . . . . . . . .

ALL EMBEDDED FLAWS (ON THIS SIDE OF

..30 ' 0.03 DEMARKATION LINE) ji?-, 0.- I4 ARE ACCEPTABLE PER CRITERIA OF IWB 3600

1 .0 , 0.02 AS LONG AS 2AS0.25 0.01 z ( . 3O) zC.

++

.:0.1.J e:

0 25 5--SZ 0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 0.2 0.225 0.11 Distance from Surface (6/t)

_ Z °0 " .30 2 .3 * -a

-5" S SS yo ,-/0,f~ l I Head unctio Figure A-2.4 Flaw Evaluation Chart for the Tubesheet-Cha el Head Junction for F Prairie Island Units I and 2

- V I-. C nwi x Inside Surface Surtace Flaw r .- , _ -

A LCirc 4...4 ufer - ntiaLcFlw Embedded Flaw X Circumferential Flaw

(. x outside Surface 1299w.wpf: lb/011995A2- A2-7

Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface ASME SECT Xl 1989 WI NO ADDENDA SPC INITIAL TO VERIFY ISI Report # 2002U010 Evaluation Performed By: S. Gky Date:02I10102 Flaw # #4 Reviewed By: J. Wren 9 Date:02112102 Lenath Length of the flaw "' is determined by finding the difference between LI and L2 for perpendicular scans, WI and W2 for parallel scans.

L and W values are from page 2 of the UT report.

t= 2.3" (1L2) - 3.6" (L1) = -1.3" inches.

Thickness Thickness of the component at the location of the flaw, using Or nom wall (circle one).

This value is from page I of the UT report.

"t"= 5.50 inches Calibration The measured angle in the calibration block was 460 degrees Calculations using metal Path From page 2 of the UT report. Scan # 3 The flaw exhibited 20% DAC at 4.240 and' 5.090 inches MP. Max amplitude is 4.688 inches MP with the transducer exit point at 2.90 inches from the centerline of the weld and 212.00 inches from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)

) Determine correction factor due to curvature.

Radius = 67.94" (R). Surface distance to max amp point = 3.372" ( C). C/R = .048 TAN.

INV TAN = 2.744 . COS = .999 . ( R I COS ) - R = .068" correction factor.

1) Determine the upper depth of the flaw from the exam surface.

4.240" (metal path at 20% upper) ' COS of the measured angle 460 = 2.945" - .068" correction factor = 2.877 inches depth.

2) Determine the lower depth of the flaw from the exam surface.

5.090" (metal path at 20% lower) ^ COS of the measured angle 46° = 3.536" - .068" correction factor = 3.468 inches depth.

3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.

4.688" (metal path at maximum amplitude point)' COS of the measured angle 460 = 3.257"

- .068" correction factor = 3.189 inches depth.

4) Determine the distance from 0" reference to the maximum amplitude point of the flaw.

4.688" (metal path at maximum amplitude point) squared = 21.977 (a2 )

3.257" (depth at maximum amplitude point, before correction) squared = 10.608 (b2) 2 4a -b2 = 3.372 inches of surface distance to the flaw from the transducer exit point.

212.0 (Lmax) + or- 3.372" (surf dist) = 215.372 inches from 0" reference.

( + or - based on scan direction)

5) Determine S by picking the smaller of the following; S = 2.877" (result of 1) = distance between exam surface and the upper flaw tip

>> OR <<

S = 5.50 (part St") - 3.486 (result of 2) = 2.014" distance between the side opposite exam surface and the lower flaw tip

6) Determine 2d In though wall thickness.

3.468" (from step 2) - 2.877" (from step 1) = .591 inches.

e 2 2

Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface Determination of surface or subsurface 0.4d=(2d12)*0.4= .118" Compare to S (from step 5)

If S is less than 0.4d, the flaw is surface. a = 2d + S NIA inches.

If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a /2 = .296 inches.

l = 1.3" (for a/i> 0 5 t = 2a) t= 5.50" (part thickness) a= .30" (surf orb circle one) S= 2.0" r r L/'I 2 i

FAGE OF 1J2 1 ARj> ISI Flaw Sizing Worksheet RE-PORCT -_,,

NMC I P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 SitelUnit:

502618 Procedure Revision/FC: Q I - Report No.: 2002U010 Summary No.:

ICI WrAr n5'or M, - fl10Rq4f Page: of Wnricmmpn: f'I.'.,"IVVI S0*

*I . -

45* #5 3) ISI Interval 3rd Interval 6 OK Reviewer SPY

1) Flaw Number

4) Code Edition & Addenda 89 no addenda q OK Reviewer SPI

2) Item Number B2.40

5) Method UT

6) Flaw Sketch (See Below) cYOK Reviewer Flaw View 238.7" "L2 = 1.1" I CL 3.5" I -. 7" Tube Sheet Head 2.4" 1 2.13" End View Side View 0* Tube Sheet Weld CL

7) Calculations $ OK Reviewer LP/

Show determination of Surface or Subsurface See attached sheets fo calculations. I Head Show determination of type of 'a' to use I op View See attached sheets fo calculations.

OK Reviewer J

8) 1SI-FE-1 Paraqraph.->- "Roundinq-off Method' was used G Yes Preparer

9) Code Flaw Dimensions 0 Of Reviewer Six 55 s" = 2 . "w = NIA T= li. 'a' -35 "t nominal- = NIA Ftmeasured =

10) Flaw Type - OK Reviewer k67 Subsurface Planar ART1

11) Flaw Characterization Figure 0 OK Reviewer CVJ- IWA.3320-1

12) Flaw Characterization Figure Number VLk..3 r'J.

13) Was IWA-3300 Flaw Characterization followed? G Yes 0 No If no, why?

(C' Yes Preparer i," ( OK Reviewer ck

14) The correct Code Edition and Addenda was available and used.

attgve gob , 7_'q-0Z

15) Prepared bandd

~) - 6- b\ _

The Hiew assures that the results are correct and the The results are correct and the methodology used is in methodology used Is in accordance with applicable codes, accordance with applicable codes, standards. specifications and standards, specifications and procedures.

procedures.

I' LE Cf lIPAl kw>, ISI Flaw Disposition Worksheet PrDUPFJT_______

Procedure r-- -,1- .7 Outage No.: ?XZCEQu 2 Site/Unit: ,YA-6 I AZ Procedure RevisionlFC: e2 I - Report No.: ,ZL S4a6 Summary No.: 5SD2 : I2LL .

WrarksconnA: -, 7 Work Order No.: />/G6 9 t6 Page: of w wU

ho W FZW

In. _} - -

1) Flaw Number _ _ _ _ _ 3) ISI Interval 3 ("OK Reviewer

2) Item Number 13-8--- 52 1

o 4) Code Edition & Addenda /9 , 4s , (3OK Reviewer

5) Acceptance Standard 27 R -- .. G

('/OK Reviewer IA*Lk

6) Calculations (See Below) CYOK Reviewer 44;L

'e /. / e t- ASH- /'

IC<Ad /= 6 a-= ~33

/a 5 - 2./ a t , O ak/ , 35 = ,2 va , ,. :

e 3j 0--

"- 2..% -354 3/4,0t,5; .3, 4, =: dv-64 ZL /' ,

db, =4"YZ -'*/-ZTw-$G X-C. 41Z 7" 7-,-6t w'3

&V -7 ;L f1i71-,f

,,r StfrsL

_5V 4 orr /w,55;- .~ C4z- A,

.~r5C_, _ y.S w/o sWAct erv'

/r ^ . -- de-& -

7) Results O/OK Reviewer /

Calculated alt% = C / Laminar flaw surface area: (0.75 l w)== A a/l= 3,2- Codeallowableaa/t% = zCtp

8) Table used for analysis (3/OK Reviewer * . :Z~v/3- 3;/p - /

9) Was linear interpolation used? (3 Yes 0 No If no. why?

10) Was IWA-3200 Significant Digits For Limiting Values followed? 0 Yes 0 No It no, why?

11) The correct Code Edition and Addenda was available and used. 0Yes Preparer 5Vr G'OK Reviewer AX>

12) Statement of acceptability or rejectability with basis. V/OK Reviewer ^6 Accept 0 Reject 0 (aft) Code allowable > (aft) calculated 41-~ 1-~em/ef1 /e.6y l pA-C /'//5 4b 5,,-./, v f4 -2.

O OEM flaw evaluation handbook (see attached analysis) 0 (aft) Code allowable < (aft) calculated dH

13) Prepared b andldae 14) Egineerin I vevi ~ w by and date .2-1y-oa Sze,- 'b ,,2-1V--;o,-2_

This review assures that the results are correct and the The results are correct and the methodology used is in accordance methodology used Is in accordance with applicable codes, with applicable codes, standards, specifications and procedures.

standards, specifications and procedures.

15) Ap~roved by ,d te that the results and the This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity methodology are correct and in accordance with applicable codes, standards, specifications and procedures.

2- oe- p r 7 007 S"

oC - %-~'1c3 ;Or r--lt(,41, -,; .& S No 5 , C.z-0o (q(. i ;

- Pjz"eC"t 2U00 F,Lrare-,%, . _

Os - ,

6> S:1 1-

-' zA'I =5,zA1s f" S~5' S 5 Surface/Embedded Flaw Domarkatlon Une C.- 0.13 El!!bliZd ii - FLAWS WITH It Conflqumtjan :i4 ABOVE THIS LINE ARE

$011MR!

0.12 NOT ALLOWABLE 0.11 i HHH!

TTTI I . . . . I.

. . . . .. T

. . . . . .. . . . -10,20,30 yrs.

0.1 . . . .. . .. . . . . .

0.09 o-

~ 0.08 . . . . . . . . . .

- 'C, )

LL 0.07 0 Rogl co . . . . .. .

s 0.06 Su

.. . .. .. . . . . . . 1q

= 0.05 1i . . . . 1 11 1 hpi i t 0.04 ALL EMBEDDED FLAWS (ON THIS SIDE OF 0.03 DEMARKATION UNE)

ARE ACCEPTABLE PER CRITERIA OF IWB 3600 0.02 if, i I it t

. . . . . . .. . . . . AS LONG AS 2at:s 0.25 0.01 3*'.1O ..C)SuC A

\1 11.e= I0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 0.2 O."5 O.,'.25 ,

Distance from Surface (6/t) -- < s-S, 3

-r ff Si/ -2.4, it

_r P0 .. ,

AA' 1, t?- .efr for t3X Figure A-2.4 Flaw Evaluation Chart for the Tubesheet-Channel Head Junction I, Prairie Island Units 1 and 2 Inside Surface Surface Flaw X Longitudinal Flaw x X Circumferential Flaw x Outside Surface X Embedded Flaw (5

1299w.wpf:lb/01199 5 A2-7

Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented in plane normal to pressure retaining surface ASME SECT Xl 1989 W/ NO ADDENDA SPC INITIAL TO VERIFY ISI Report # 2002U010 Evaluation Performed By. S. Clay Date:02110102 Flaw # #5 Reviewed By: J. Wren _i)L UA t Date:02113102 Lenath Length of the flaw "a is determined by finding the difference between I1 and L2 for perpendicular scans, W1 and W2 for parallel scans.

L and W values are from page 2_. of the UT report.

l= 2.4" (L2) - 3.5" (L1) = -1.1" inches.

Thickness Thickness of the component at the location of the flaw, usingor nom wall (circle one).

This value isfrom page I of the UT report.

't" = 5.50 inches Calibration The measured angle in the calibration block was 46° degrees Calculations using metal path From page 2 of the UT report, Scan # 3 The flaw exhibited 20% DAC at 3.939 and 4.949 inches MP. Max amplitude is 4.442 inches MP with the transducer exit point at 3.0 inches from the centerline of the weld and 235.50 inches from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)

) Determine correction factor due to curvature.

Radius = 67.94" (R). Surface distance to max amp point = 3.195" ( C). C/R = .047 TAN.

INV TAN = 2.693 . COS = 999 ( R /COS ) - R = .068" correction factor.

1) Determine the upper depth of the flaw from the exam surface.

3.939" (metal path at 20% upper)

COS of the measured angle 46° = 2.736" - .068" correction factor = 2.668 inches depth.

2) Determine the lower depth of the flaw from the exam surface.

4.949" (metal path at 20% lower)

COS of the measured angle 460 = 3.438" - .068" correction factor= 3.370 inches depth.

3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.

4.442" (metal path at maximum amplitude point)

COS of the measured angle 46° = 3.086"

- .068" correction factor = 3.018 inches depth.

4) Determine the distance from 0" reference to the maximum amplitude point of2the flaw.

4.442" (metal path at maximum amplitude point) squared = 19.731 (a ) 2 3.086" (depth at maximum amplitude point, before correction) squared = 9.523 (b )

q a2 - b2 = 3.195 inches of surface distance to the flaw from the transducer exit point.

235.5 (Lmax) + or - 3.195" (surf dist) = 238.695 inches from 0" reference.

( + or - based on scan direction)

5) Determine S by picking the smaller of the following; S = 2.668" (result of 1) = distance between exam surface and the upper flaw tip

>> OR <<

S = 5.50 (part 't") - 3.370 (result of 2) = 2.130" distance between the side opposite exam surface and the lower flaw tip

6) Determine 2d in though wall thickness. , _____

3.370" (from step 2)- 2.668" (from step 1) = .702 inches. id 1la..

Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented in plane normal to pressure retaining surface Determination of surface or subsurface 0.4d=(2d/2)*0.4= .140" Compare to S (from step 5)

If S is less than 0.4d, the flaw is surface. a = 2d + S = N/A inches.

If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a /2 = .351 inches.

I = 1.1" (fora/C>0.5,(=2a) t= 5.50" (part thickness) a= .35" (surf o x) circle one) S= 2.1" p}<.A aeAA l

FAu E r30 Of 12 l QD_ ISI Flaw Sizing Worksheet Site/Unit: NMC / P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 Summary No.: 502618 Procedure Revision/FC: 9 / _ Report No.: 2002U010 let MWrAr (rH4r Kin linAPQ4R Pate:. of VVurKs5Gp:t% II I - 1- *w... -U-. V -V

1) Flaw Number 2 450 3) ISI Interval 3rd Interval X OK Reviewer

2) Item Number 82 40 4) Code Edition & Addenda 89 no addenda (I OK Reviewer a

5) Method UT

6) Flaw Sketch (See Below) ) OK Reviewer S(7 Flaw View Alu = 1.2" 332.70" I PI CL l1.05" 3 6" Tube Sheet Head 2.4"0 End View Side View 0- Tube Sheet I

AlI

-I 1

332.70" Weld CL _ - _ - _ - . ---

7) Calculations X OK Reviewer OD" Head Show determination of Surface or Subsurface I See attached sheets fo calculations. Top View Show determination of type of 'a' to use See attached sheets fo calculations.

Method' was used G Yes Preparer 5 go OK Reviewer

8) ISI-FE-I Paraqraph - "Roundinq-off

9) Code Flaw Dimensions i OK Reviewer !

fly= liat

- aw=

a. 5 "t nominal = N/A t measured = 5.5 Asp = q "w= N/A

10) Flaw Type @ OK Reviewer %92.L. Subsurface PlanarOR-n

11) Flaw Characterization Figure C OK Reviewer 7.

e gI-2" 5=/9' , :5- T e/
, 5-.5 I -C>
z -iMIl
, Co f a 7 6; --4*/.;.( if sA. '-
Y)97 A, * - xt 4~y xwa, 3.
I tib-.
ra g , SI' 4'f, e 7/b ct giddy ezV'Z as4 e 0 a,2
~- e-le' '
,= /0. o c>,,,,,,:{Az6 f<'97 A~Cce4-'
iz'- /7-^r'
7) Results (GrOK Reviewer _ _
Code allowable a/t% = 4 -9 Calculated a/t% = /lo* 6 Laminar flaw surface area: (0 75 I w)= AIA all = . C/
8)Table used for analysis & OK Reviewer j 2"':3- 35 /Q/-l
9) Was linear interpolation used? Q' Yes 0 No If no, why?
10) Was IWA-3200 Significant Digits For Limiting Values followed? @ Yes 0 No If no, why?
PYes Preparer (?'OK Reviewer
11) The correct Code Edition and Addenda was available and used.
12) Statement of acceptability or rejectability with basis. (OK Reviewer Q) Accept 0 Reject i11.
o (alt) Code allowable > (a/t) calculated a A^fceod 14&6;t &A,,6p ,I//6 6 t
OEM flaw evaluation handbook (see attached analysis) P :-4/kA 2gu-e F x' A X-7
} (alt) Code allowable < (alt) calculated
13) Prepared by and date, 14) Engneering review by and date OX. ,/ 2_ey 2x The results are correct and the methodology used is in accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used is in accordance with applicable codes, standards, specifications and procedures.
15) Ap~oved by and dte Staxr, iUi .17//&07 of the necessity that the results and the This approval assures that all involved with this flaw sizing and flaw disposition were aware and procedures.
methodology are correct and in accordance with applicable codes, standards, specifications
0 KD0 L,%1-Cn pr'
- PIrzou-)- KA ilQ- 1J21 F~A'u d6 - I q /'
a. s ,, .5 IAq t ,-I.S ? s .
ZM5,5-.S O- Surface/Emnbedded Flaw Demarkatlon Una C 0.13 it mbeididet XXX Fle I FLAWS NOT A LLOWIHaft 0.12 LL 3OWA0S.L 0.11 10 20, 30 yrs.
0.1 I D.I 0.09 4-:
0.08 LL 0.07 I .1I :
s 0.06
. . . . .A .C S.
= 0.05 0.04 MBEDDED FLAWS HIS SIDE OF 0.03 kRKAflON UNE) 01/I s LCCEPTABLE PER
/ Z- s-s I ERIA OF IWB 3600 0.02 ING AS 2a/ts0.25 g __ - W lF i ; CRET 0.01
. 0 0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 0.2 0.225 0.25
,W Distance from Surface (c/t)
-: . 9- c/ C.,C-I1n S I S W C A P; /5//6 C, Fi r 5 5ec t,4j n A9-? At /k177 Figure A-2. 4 Flaw Evaluation Chart for the Tubesheet-Channel Head Junction for Prairie Island Units I and 2 X Longitudinal Flaw X Inside Surface Surface Flaw Embedded Flaw X Circumferential Flaw C. X Outside Surface X a~zm.,.7j'd04P 6,~ _ ,4 ~
1299w.wpf:lb/011995 A2-7
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented in plane normal to pressure retaining surface ASME SECT Xl 1989 WI NO ADDENDA SPC INITIAL TO VERIFY ISI Report # 2002U010 Evaluation Performed By: S. CM Date:02/10102 Flaw# #6 Reviewed By: J. Wren Date:02113102 Lenath Length of the flaw "' is determined by finding the difference between LI and L2 for perpendicular scans, WI and W2 for parallel scans.
L and W values are from page 2 of the UT report.
1= 2.4" (L2) - 3.6" (LI) = -1.2" inches.
Thickness Thickness of the component at the location of the flaw, usingjT or nom wall (circle one).
This value is from page I of the UT report "t" = 5.50 inches Calibration The measured angle in the calibration block was 460 degrees Calculations using metal Path From page 2 of the UT report, Scan # 3 The flaw exhibited 20% DAC at 2.827 and 4.344 inches MP. Max amplitude is 3.888 inches MP with the transducer exit point at 2.60 inches from the centerline of the weld and 329.90 inches from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
^) Determine correction factor due to curvature.
Radius = 67.94" (R). Surface distance to max amp point = 2.797" ( C). C/R = 041 TAN.
INV TAN = 2.357 . COS = .999 . (R /COS ) - R .068" correction factor.
1) Determine the upper depth of the flaw from the exam surface.
2.827" (metal path at 20% upper)
COS of the measured angle 460 = 1.964" - .068" correction factor = 1.896 inches depth.
2) Determine the lower depth of the flaw from the exam surface.
4.344" (metal path at 20% lower)' COS of the measured angle 460 = 3.018" - .068" correction factor = 2.950 inches depth.
3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
3.888" (metal path at maximum amplitude point)' COS of the measured angle 46° = 2.701"
- .068" correction factor = 2.633 inches depth.
4) Determine the distance from O' reference to the maximum amplitude point of the flaw.
2 3.888" (metal path at maximum amplitude point) squared = 15.117 (a )
2.701 " (depth at maximum amplitude point, before correction) squared = 7.295 (b2) 2 2 v a - b = 2.797 inches of surface distance to the flaw from the transducer exit point.
329.90 (Lmax) + or - 2.797" (surf dist) = 332.697 inches from 0" reference.
( + or - based on scan direction)
5) Determine S by picking the smaller of the following; S = 1.896" (result of 1) = distance between exam surface and the upper flaw tip
>> OR <<
S = 5.50 (part "r) - 2.950 (result of 2) = 2.550" distance between the side opposite exam surface and the lower flaw tip
6) Determine 2d in though wall thickness.
2.950" (from step 2) - 1.896" (from step 1) = 1.054 inches.
. 33-.:I--,i p1r r r r -
I _ I
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented in plane normal to pressure retaining surface Determination of surface or subsurface 0.4d=(2d/2)*0.4= .211" Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = N/A inches.
If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a /2 = .527 inches.
I = 1.2" (for ay> 0.5, L= 2a) t = 5.50" (part thickness) a= .55" (surf oru circle one) S = 1.9" v I _ _ _ _1 _
C.. f c -,,
ISI Flaw Sizing Worksheet QD)
I P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 Site/Unit: NMC 502618 Procedure Revision/FC 9 / Report No.: 2002U010 Summary No.:
IF.I Work Order No: 0106946 Page: of WnAleA-nn- V11 VVVIMQVp-3rd Interval 0 OK Reviewer 2RL.
1)Flaw Number .7t45 f 3) ISI Interval
4) Code Edition & Addenda 89 no addenda (P OK Reviewer q
2) Item Number B2.40
5) Method UT
6) Flaw Sketch (See Below) > OK Reviewer Flaw View ul = 1.0" 349.85" 1.33" CL 2.5" Tube Sheet 11.5" Head i
i End View Sid-eiVew 00 Tube Sheet W eld C L - - --------------------------------
349.85" ,
7) Calculabons V OK Reviewer Cog I Head Show determination of Surface or Subsurface See attached sheets fo calculations. TopView Show determinaton of type of 'a' to use See attached sheets fo calculations.
(b OK Reviewer
8) ISI-FE-1 Paraqraph7G- "Roundinq-off Method' was used G Yes Preparer SW
9) Code Flaw Dimensions OK Reviewer % )
O1
.s.*= w'=
'. NIA TI= .. wa" = I-t nominal I NIA It measured" = 5.5
10) Flaw Type f! OK Reviewer P Subsurface Planaria 1)Flaw Characterization Figure ( OK Reviewer 9 IWA-3320-1
12) Flaw Characterization Fiqure Number AL )
13) Was IWA-3300 Flaw Charactenzabon followed? (3 Yes 0 No If no, why?
_'_ a . I
,47>
- CV D--orW(> SEW
14) The correct Code Ed tion and Addenda was available and used. (3 Yes Preparer I- %JF% f-fl
15) Preparedband dat 0 d Z -I9-O Z
_____1-02
!5OA7P The review assures that the results are correct and uie The results are correct and the methodology used is in methodology used is in accordance with applicable codes, accordance with applicable codes, standards, specifications and standards, specifications and procedures.
procedures.
S6_% 1i21 I
ISI Flaw Disposition Worksheet . - -
WD SitelUnit: niC/ PLrz Procedure: - U -~ - '3 Outage No.: IQ F 2co Summary No.: 5 (a GIB Procedure Revision/FC: 9 Report No.: ZcCi (a t° Workscope: _5rs Work Order No.: C) 1iQ(L 0t 9 (,o Page: of
1) Flaw Number 7 7 3)) ISI Interval 3 I A 1 OK Reviewer
2) Item Number i32.9 V0 4J) Code Edition & Addenda i9 88 i k te d ... 0.. OK Reviewer t,_ 5:
Acceptance Standard - ., ?j - 3 9 OK Reviewer
) Calculations (See Below) (3 OK Reviewer I.
Y J A/,': ') = G.5 "
/GC,76 ::' -%. L 70 ; ,.)Y I CA/A 1/d
-Z ^, - 33) C fa/6L :gx- 3a DuO {50-I Ac -
F/ Alxit *.j2 teX6fSBL3 't~e"Y .35ur1.
Z,'Vxte~9b1 510uG 7° (-
P- ee e'Y/6s -
RL-ALJ AFees Ysw 4dt4 e_'A J-(,A-Pr1J " A " D B3C)".-
7) Results 3 OK Reviewer Ie~ i/
al = I,) a Code allowable alt% = 3. 3 Calculated a/t% = Laminar flaw surface area: (0.75 l w)= I)J
8) Table used for analysis '9 OK Reviewer £274'7 ZA 3 - 37o - /
9) Was linear interpolation used? 0 Yes eNo If no, why?
0)ail s eLrrT E
10) Was IWA-3200 Significant Digits For Limiting Values followed? S'Yes 0 No If no, why?
11) The correct Code Edition and Addenda was available and used. G(Yes Preparer Gt4 3 OK Reviewer
12) Statement of acceptability or rejectability with basis. i OK Reviewer (V'Accept
& 0 Reject o (alt) Code allowable > (alt) calculated zLrA.L to ACcee6 " e b6 !2 CAP, Y/'
OEM flaw evaluation handbook (see attached analysis) A
(alt) Code allowable < (a/t) calculated A2
13) Prepared by and date 14) Engineerinnrevigw by and date A________ 2-/V o __OZ._ _/__
The results are correct and the methodology used Isin accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used is in accordance with applicable codes, standards, specifications and procedures.
15) Ap"ved by anddt_
the This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity that the results and methodology are correct and in accordance with applicable codes, standards, specifications and procedures.
j'tLz-p-C 2o0C, L t St-^ If'-t 50CXCi8 rl1A cJ (.rq
,-S "P ~C67
-3T-- - Iat 4 9/9ll wL0 fZLw . 7
-J 1.J.0 Surface) 'Embodedd Flaw Dei rmarkatlon 1.3 i- . ZO . 1 Une C. 0.13 F
6 - FLAWS WITH a:t ABOVE THIS LINE ARE 0.12
\
NOT ALLOWABLE 0.11 .
-1 0, 20, 30 yrs.
0.1 . . . . . . . . . . .. . .. .. . . . . . . . .
( ,ri,? 7 ,)
0.09 4t-
~ 0.08 Ll 0.07 Fin" In this . . . . . . .. .. . . . . . . -2 z ('. z1b)"
Region Must . . . . .. . .. . o7 Considered 0.06 Surb oo 51 F]" m . . . . . . . . .. . . . .
!- 0.05 0.04 ALL EMBEDDED FLAWS S-I {ON THIS SIDE OF rC o/IC 0.03 DEMARKATION UNE)
ARE ACCEPTABLE PER CRITERIA OF IWB 3600 0.02 . . . . . . . .. .. . . . . . . . . . . . . AS LONG AS 2as0.25 0.01 0
0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 0.2 0.225 0.25
/ .5 Distance from Surface (6/t) re (4 cU.Ae ,I7 4fei +1' /a-2 Figure A-2.4 Flaw Evaluation Chart for the Tubesheet-Channel Head Junction for Prairie Island Units I and 2 X Inside Surface Surface Flaw X Longitudinal Flaw
(. X Outside Surface X Embedded Flaw X Circumferential Flaw
~&,t~// L 1299w.wpf:lb/011995 A2-7 7-
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface ASME SECT XI 1989 W/ NO ADDENDA SPC INITIAL TO VERIFY ISI Report # 2002U010 Evaluation Performed By: S. Clay , Date:02I10102 Flaw # #7 Reviewed By. J. Wren CA ) Date:02J13/02 Length Length of the flaw T' is determined by finding the difference between LI and L2 for perpendicular scans, W1 and W2 for parallel scans.
L and W values are from page 2 of the UT report.
I= 1.5" (L2) - 2.5" (LI) = -1.0" inches.
Thickness Thickness of the component at the location of the flaw, usinyr nom wall (circle one).
This value is from page 1 of the UT report.
661 = 5.50 inches Calibration The measured angle in the calibration block was 460 degrees Calculations usina metal Dath From page 2 of the UT report, Scan # 4 The flaw exhibited 20% DAC at 1.918 and 2.474 inches MP. Max amplitude is 2.120 inches-MP with the transducer exit point at 2.30 inches from the centerline of the weld and 351.50 inches from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
) Determine correction factor due to curvature.
Radius = 67.94" (R). Surface distance to max amp point = 1.525" (C). C/R = .022 TAN.
INV TAN = 1.286 . COS = 1.000 . ( R /COS ) - R = .000" correction factor.
I) Determine the upper depth of the flaw from the exam surface.
1.918" (metal path at 20% upper)
COS of the measured angle 460 = 1.332" - .000" correction factor = 1.332 inches depth.
2) Determine the lower depth of the flaw from the exam surface.
2.474" (metal path at 20% lower) COS of the measured angle 460 = 1.719" - .000" correction factor = 1.719 inches depth.
3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
2.120" (metal path at maximum amplitude point)
COS of the measured angle 460 = 1.473"
- .000" correction factor = 1.473 inches depth.
4) Determine the distance from 0" reference to the maximum amplitude point 2of the flaw.
2.120" (metal path at maximum amplitude point) squared = 4.494 (a ) 2 1.332" (depth at maximum amplitude point, before correction) squared = 1.774 (b )
a2 - b2 = 1.649 inches of surface distance to the flaw from the transducer exit point.
351.50 (Lmax) + or - 1.649" (surf dist) = 349.851 inches from 0" reference.
( + or - based on scan direction)
5) Determine S by picking the smaller of the following; S = 1.332" (result of 1) = distance between exam surface and the upper flaw tip
>> OR <
S = 5.50 (part "t") - 1.719 (result of 2) = 3.781" distance between the side opposite exam surface and the lower flaw tip
6) Determine 2d in though wall thickness.
1.719" (from step 2)- 1.332" (from step 1) = .387 inches. . - J
. C ,
L *.-7
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface Determination of surface or subsurface 0.4d = (2d / 2) - 0.4 = .077" Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = NIA inches.
If S is greater than or equal to 0.4a the flaw is sub-surface a = 2a /2 = .194 inches.
I= 1.0" (for a/l > 0.5, L= 2a) t= 5.50" (part thickness) a= .20" (surf or I circle one) S= 1.3"
3c .A I
n*f t _ zip_-Z/ 1.2 9k7> ISI Flaw Sizing Worksheet Site/Unit: NMC I P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 502618 Procedure Revision/FC: - Report No.: 2002U010 Summary No.:
lce Worl, nr41- -, Mn - nli nAQAR Page: of VVnrKscnn2: Sol '.'1 .xu . __
1) Flaw Number 3) ISI Interval 3rd Interval '0 OK Reviewer 9W B2.40 4) Code Edition & Addenda 89 no addenda 9 OK Reviewer 9FJ
2) Item Number
5) Method UT
6) Flaw Sketch (See Below) e OK Reviewer k1 Flaw View "L" = 0.8" 363.57" CL Tube Sheet 1.8" Head
.64 'I -0, 1.74" End View Side View 0* Tube Sheet 363.57" _ _ _ _ _- _ _ _ _ _ _ _ _ _ _ _.--
Weld CL ------- _ _ _ _ _ _ _ _ _ _ _
. 00,
7) Calculations OK Reviewer <7 I Show determination of Surface or ace Head See attached sheets fo calculations. i Show determination of type of 'a' to use Top View See attached sheets fo calculations.
8) ISI-FE-1 ParaqraphX-"Rounding-off Method"was used (3 Yes Preparer 5FC 0 OK Reviewer
9) Code Flaw Dimensions X OK Reviewer 9 It measured = 5.5 I = I,7 W= NIA 7"= -ROL 'a"= 301 "t nommal" = NIA
10) Flaw Type 5 OK Reviewer I Subsurface Planar 67
11) Flaw Charactenzation Fiqure Jk OK Reviewer rW IWA-3320-1
12) Flaw Characterization Fiqure Number FLAW) c2
13) Was IWA-3300 Flaw Characterization followed? G Yes 0 No If no, why?
14) The correct Code Edion and Addenda was available and used. (G Yes Preparer I (P OK Reviewer @) r and da te._ 16)e byandJd: A,?
15) Prepared b__ _
I loO r /-~
- '. .2 The results are correct and the methodology used is in The rMew assures that the results are correct and the methodology used is in accordance with applicable codes, accordance with applicable codes, standards, specifications and procedures. standards, specifications and procedures.
I' /. 'I 7FA ISI Flaw Disposition Worksheet , A ,. .
Site/Unit: "mC I PI 2.. Procedure: X Sr - (AT- - 3 Outage No.: e2 e Ig 2.o .z Cj~ Report No.: ZccZc J O i C!
Summary No.: 5 (. 18 Procedure Revision/FC:
Workscope: IS Z WorkOrderNo.: Oi OjCt 9 A/C, Page: of
1) Flaw Number g8 3) ISI Interval 3__
_____ OK Reviewer J
2) Item Number >-j {3 2. 5O 4) Code Edition & Addenda iq K3J S J1 z,- .. @ OK Reviewer Heoe
5) Acceptance Standard I 6 1 10 OK Reviewer rLIr- U3 IS 5 LiFF"~- @ OK Reviewer H
6) Calculations (See Below)
'ZI 3c- 30', 3-.7 r 33LC LUS /,
CI'-
SI X -S*IY . G3 ( so Y) _ S/, sSy o8 5Gx - 0 .391
, S *8y 0 -Il CG S.atyrS.,y " La;y +. )Siy -Os, x -- T. S L P X _o/bA¢a Z-z$~
q/a; s 7)Results
OK Reviewer 65rztc al = 3& Code allowable a/t% = 5' Calculated a/t% = S' 5c o'S^5) Laminar flaw surface area: (0.75 l w)=
8) Table used for analysis 0 OK Reviewer V4&,' -3q/o - /
9) Was linear interpolation used? (2Yes 0 No If no, why?
10) Was IWA-3200 Significant Digits For Limiting Values followed? V Yes 0 No If no, why?
VYes Preparer / r OK Reviewer .- Ox ,s
11) The correct Code Edition and Addenda was available and used.
12) Statement of acceptability or rejectability with basis. (8 OK Reviewer ad'-" o Accept 0 Reject d (a/t) Code allowable > (a/t) calculated o OEM flaw evaluation handbook (see attached analysis) o (alt) Code allowable < (alt) calculated
13) Prep red by and date 14) Engineering review by and date
,v v./~47 z 4n -///-- -a z-f_
The results are correct and the methodology used IsIn accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used is in accordance with applicable codes, standards, specifications and procedures.
15) App ved by and dete I that the results and the This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity methodology are correct and in accordance with applicable codes, standards, specifications and procedures.
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" surface For surface and subsurface single planar flaws oriented in plane normal to pressure retaining ASMESECTWX1989WINOADDENDA SPC INITIAL TO VERIFY ISI Report# 2002U010 Evaluation Performed By: S. CAY Date:02110102 Flaw # #8 Reviewed By: J. Wren Date02110102 Length perpendicular scans, Length of the flaw T is determined by finding the difference between Li and L2 for W1 and W2 for parallel scans.
L and W values are from page 2 of the UT report.
t= 2.2" (12) - 3.0" (L1) = -0.8" inches.
Thickness Thickness of the component at the location of the flaw, using abr nom wall (circle one).
This value is from page I of the UT report.
"t" = 5.50 inches Calibration The measured angle in the calibration block was 460 degrees Calculations using metal oath From page 2 of the UT report. Scan # 3 The flaw exhibited 20% DAC at 4.591 and 5.505 inches MP. Max amplitude is 4.894 inches 360.05 inches MP with the transducer exit point at 2.40 inches from the centerline of the weld and vs. 50% max amp for indications > 100% DAC is conservative.)
from the 0 reference. (Use of 20% DAC
) Determine correction factor due to curvature.
Radius = 67.94" (R). Surface distance to max amp point = 3.520" ( C). C/R = .Q52 TAN.
INV TAN = 2.966 . COS = .999 . ( R I COS ) - R = ..068" correction factor.
1) Determine the upper depth of the flaw from the exam surface.
460 = 3.189" - .068" 4.591" (metal path at 20% upper)
COS of the measured angle correction factor = 3.121 inches depth.
2) Determine the lower depth of the flaw from the exam surface 460 = 3.824" - .068" 5.505" (metal path at 20% lower)
COS of the measured angle correction factor = 3.756 inches depth.
point.
3) Determine the depth of the flaw from the exam surface at the maximum amplitude
= 3.400" 4.894" (metal path at maximum amplitude point)
COS of the measured angle 460
- .068" correction factor = 3.332 inches depth.
4) Determine the distance from O"reference to the maximum amplitude point of2 the flaw.
4.894" (metal path at maximum amplitude point) squared = 23.951 (a )
(b2) 3.400" (depth at maximum amplitude point, before correction) squared = 11.560 point.
4 a - b2 = 3.520 inches of surface distance to the flaw from the transducer exit 360.05 (Lmax) + or - 3.520" (surf dist) = 363.570 inches from 0" reference.
( + or - based on scan direction)
5) Determine S by picking the smaller of the following; S = 3.121" (result of 1) = distance between exam surface and the upper flaw tip
>> OR <
S = 5.50 (part t) - 3.756 (result of 2) = 1.744" distance between the side opposite exam surface and the lower flaw tip
6) Determine 2d in though wall thickness.
3.756" (from step 2) - 3.121" (from step 1) = .635 inches. , , ;f
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented in plane normal to pressure retaining surface Determination of surface or subsurface 0.4d=(2d/2)*0.4= .127" Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = N!A inches.
If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a /2 = .318 inches.
f= .80" (for at > 0.5. l = 2a) t = 5.50" (part thickness) a= .30" (surf or s ucircIe one) S = 1.7" I
i 44
/. / . jZ ISI Flaw Sizing Worksheet 99D ISI-UT-3 Outage No.: P12RF2002 Site/Unit. NMC I P12 Procedure:
Summary No: 502618 Procedure Revision/FC: 9 - -- Report No.: 2002U010 Wnrkscone: ISI Work Order No.: 0106946 Page: of
., _ . .. _wr_. ,
1) Flaw Number 4 Also 10 3) SI Interval 3rd Interval OK Reviewer k B2.40 4) Code Edition & Addenda 89 no addenda S OK Reviewer SjtJ
2) Item Number
5) Method UT
6) Flaw Sketch (See Below) A OK Reviewer Flaw View Ir~r 7A" I "L" = 0.9" O4 1.26" CL I'...
.L95" n! u,1P.9E Tube Sheet Head I
End View Side View 0O Tube Sheet 366.74" _ _ _ _ _ -_ - _ - -_ - _ - -_.---
Weld CL ------- . _--. _ _ _ _ _ _ . _ _ _ _ _ _ _ _
F h#10
'U Ls
7) Calculations OK Reviewer 2
#9 Head Show determination of Surface or Subsurface See attached sheets fo calculatIons. Top View Show determination of type of 'a' to use See attached sheets fo calculations.
W.%K X OK Reviewer DJ
8) ISI-FE-1 Paraqraph i.- "Roundinq-off Method' was used ( Yes Preparer
9) Code Flaw Dimensions (29 OK Reviewer g NIA * ,measured" = 5.5 .s"= 1 w=
W N/A WI"= .A wax= .at6 It nominal =
10) Flaw Type ( OK Reviewer Ž. Subsurface Planar JaRTl
11) Flaw Charactenzation Figure A OK Reviewer A IWA-3320-1
12) Flaw Characterization Fiqure Number iLAtAW i I
13) Was IWA-3300 Flaw Characterization followed? G) Yes 0 No If no, why?
14) The correct Code Edition and Addenda was available and used. (3 Yes Preparer ) I OK Reviewer 5
15) Prepared by and datek I1 by an C gp,4 Z-1_9_-_O_2-SenPui ____a _-lo-o__A }_ _
The results are correct and the methodology used is in The rview assures that the results are correct and the accordance with applicable codes, standards, specifications and methodology used is in accordance with applicable codes, procedures. standards, specifications and procedures.
Y51 I. . 12A-ISI Flaw Disposition Worksheet wmtD Site/Unit: WcnCI PIZ- Procedure IS tT - 3 Outage No.: '1l2. R F 20c2z Summary No.: 50 .2f Procedure Revision/FC: 9 I Report No.: 2002U 0/0 Workscope: -ST Work Order No.: n /j-) ,Q VIA Page: of
1) Flaw Number - / 3)1SI Interval 2 -/ OK Reviewer 06r'
2) Item Number z- ' ?2.Y0 4) Code Edition &Addenda I 2 ?YtJv Atc4,1W-dc.. & OK Reviewer p
5) Acceptance Standard U B 5o q OK Reviewer rL7AW IS SL. 63Lr< FA C 6) Calculations (See Below) ( OK Reviewer oxnJ' d s:. 5 0/.Y I/ If 0..l r,'- j, 3 ,1
,'/* /1
/A = c,=, S "-CA eV /0
,- 4//C0"Z ")?
l/fK . ,e6 I/ - 13
-l/e,< =. 7, (,Y cf/6f -.,
a/i r - -I 'C 11,6 Z ,;) V, E
c- k -,\ z-e 'e ce < \ -" U"' c-~"' _ -46See >
7) Results OK Reviewer s AO all = i__ /I Code allowable a/t% = I. ( ?c Calculated a/t% = ?-) % Laminar flaw surface area: (0.75 1 w) = Ai___
8) Table used for analysis Q OK Reviewer 0 6Y--- c 3zT1/0 -/
9) Was linear interpolation used? 0 Yes (3 No If no, why?
OA.' 7^6ZC e,
10) Was IWA-3200 Significant Digits For Limiting Values followed? @ Yes 0 No If no, why?
Pre; parer jj~ 0 OK Reviewer ,0 I1) The correct Code Edition and Addenda was available and used. 0 Yes
12) Statement of acceptability or rejectability with basis. ( OK Reviewer , . ( Accept 0 Reject 0 (alt) Code allowable > (a/t) calculated P~4kf*5i' t6'/i cG OEM flaw evaluation handbook (see attached analysis) 4dd~/q/& 6/zs-:,J 7-O (alt) Code allowable < (a/t) calculated
13) Pre red by and#at, 14) Engineerinc review by and date
_______ _ .2-A't- 2oe 2 The results are correct and the methodology used is in accordance This review asssures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology u.5ed is in accordance with applicable codes, standards, spec cifications and procedures.
15 )A ovedbya de This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity that the results and the methodology are correct and in accordance with applicable codes, standards, specifications and procedures.
C) U - ?r T 9A2?-7OL2-7 0"I
.C - ' ' ,'P -,-I I Surface/Embodded Flaw Demarkatlon Une C. 0.13 ad
- FLAWS WIT aft 41; ABOVE THIS UINE ARE 0.12 NOT ALLOWABLE 0.11
' 10,20,30 yrs.
0.1 0.09 0.08 I)(3)-c, °i)
LL 0.07 Flaw In this Rog )n Must Can rod
- 0.06 Surface 7 jL5 Flaws 2-2k .
I.
=- 0.05 5sV 0.04 ALL EMBEDDED FLAWS (ON THIS SIDE OF 0.03 DEMARKATION UNE)
ARE ACCEPTABLE PER CRITERIA OF IWB 30 0.02 AS LONG AS 2aAs 025 0.01 C __
0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 0.2 0.225 0.25 (6/t) e.
_ ifa Distance from S urface FLP4 S L-'F Fl iC I
C...4
~C C)
I "IS ll -~ . ;s ~ ~ CPq C- AJ5 cp 2 s1. t for Figure A-2.4 Flaw Evaluation Chart for the Tubesheet-Channel Head Junction Prairie Island Units 1 and 2 X Longitudinal Flaw x Inside Surface Surface Flaw X Circumferential Flaw C. X Outside Surface X Embedded Flaw
' > p/4 / L--
1299w.wpf:lIb/011995 A2-7
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface ASME SECT Xl 1989 W/ NO ADDENDA SPC INITIAL TO VERIFY ISI Report# 2002U010 Evaluation Performed By: S. Cl Date:02110102 Flaw # #9 & #10 Reviewed By: J. Wren CeJ Date:02I13102 Lenath Length of the flaw "r is determined by finding the difference between Li and L2 for perpendicular scans, WI and W2 for parallel scans.
L and W values are from page 2 of the UT report.
l= 1.0" (L2) - 1.9"(L1) = -. 9 inches.
Thickness Thickness of the component at the location of the flaw, using &r nom wall (circle one).
This value is from page 1 of the UT report.
"t" = 5.50 inches Calibration The measured angle in the calibration block was 460 degrees Calculations using metal path From page f of the UT report, Scan # 3 The flaw exhibited 20% DAC at 1.816 and 3.178 inches MP. Max amplitude is 2.976 inches MP with the transducer exit point at 1.70 inches from the centerline of the weld and 364.60 Inches from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
) Determine correction factor due to curvature.
Radius = 67.94" (R). Surface distance to max amp point = 2.141" (C). C/R = .032 TAN.
INVTAN = 1.805 . COS = 1.000 . ( R/COS )-R= .000" correction factor.
1) Determine the upper depth of the flaw from the exam surface.
1.816" (metal path at 20% upper)
COS of the measured angle 460 = 1.261" - .000" correction factor = 1.261 inches depth.
2) Determine the lower depth of the flaw from the exam surface.
3.178" (metal path at 20% lower) " COS of the measured angle 460 = 2.208" - .000" correction factor = 2.208 inches depth.
3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
2.976" (metal path at maximum amplitude point) ^ COS of the measured angle 46° = 2.067"
- .000" correction factor = 2.067 inches depth.
4) Determine the distance from 0" reference to the maximum amplitude point of the flaw.
2 2.976" (metal path at maximum amplitude point) squared = 8.857 (a )
2.067" (depth at maximum amplitude point, before correction) squared = 4.274 (b2) v a2 b1= 2.141 inches of surface distance to the flaw from the transducer exit point.
364.60 (Lmax) + or - 2.141" (surf dist) = 366.741 inches from 0" reference.
( + or - based on scan direction)
5) Determine S by picking the smaller of the following; S= 1.261 " (result of 1) = distance between exam surface and the upper flaw tip
>> OR c<
S = 5.50 (part tr) - 2.208 (result of 2) = 3.292" distance between the side opposite exam surface and the lower flaw tip
6) Determine 2d in though wall thickness.
2.208" (from step 2)- 1.261" (from step 1)= .947 inches. . . ,
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface Determination of surface or subsurface 0.4d=(2d12) 0.4= .189" Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = NIA inches.
If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a 1 2 = .474 inches.
I= .9" (for a/1 > 0.5, 1= 2a) t= 5.50" (part thickness) a= .45" (surf or sub su circle one) S= 1.3" I.
'/94 ! 1 Cj,'r, WD- ISI Flaw Sizing Worksheet Site/Unit: NMC I P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 Summary No.: 502618 Procedure RevisionlFC: q l/ - Report No.: 2002U010 let MlAr- Cr.rfr N , 01 06946 Page: of VVNrKSCUUU. 1o1 I.-
I.--
.UII'V.G ...
1)Flaw Number
II 5° 3) ISI Interval 3rd Interval - OK Reviewer
2) Item Number B2.40 4) Code Edition & Addenda 89 no addenda 4B OK Reviewer
5) Method UT
6) Flaw Sketch (See Below) `l OK Reviewer -
Flaw View 384.21" L = 0.9" I _1 CL 4.2" 3*13 Tube Sheet !3.3" Head 0.54" End View Side View O- Tube Sheet Weld CL -----------------------------------------
384.21" I
7) Calculations V OK Reviewer'i~49%
Show determination of Surface or Subsurface I Head See attached sheets fo calculations. Top View Show determination of type of 'a' to use See attached sheets fo calculations.
l OK Reviewer - 1
8) ISI-FE-1 Paraqraph;- "Rounding-off Method" was used (3 Yes Preparer i
9) Code Flaw Dimensions (9 OK Reviewer <
.90I
=
ADI 'a'=
Q0 tnomial" =
Itnominal' NIA NI ta"=
"tmeasured" = 5.5 Is. = "w5 v = NIA
10) Flaw Type q OK Reviewer .?b Subsurface Planar OT)R
11) Flaw Characterization Fiqure I OK Reviewer IWA-3320-1
12) Flaw Charactenzation Fiqure Number VL kw i 2
13) Was IWA-3300 Flaw Charactenzation followed? (3 Yes 0 No If no. why?
14) The correct Code Edition and Addenda was available and used. (i Yes Preparer i A OK ReviewerrP
15) Prepared by and date _ 16)Jy and dLe n9C:LAL 4-)) P/' t-l/--
The results are correct and the methodology used is in The reAew assures that the results are correct and the accordance with applicable codes, standards, specifications and methodology used is in accordance with applicable codes, procedures. standards, specifications and prmcedures.
.' -,- -J90L ISI Flaw Disposition Worksheet : I- -. " r, -
kmt!
SitelUnit: tj YY C , f 2L Procedure: i akN - 3 Outage No.: _ __ _PZ_-2_
Summary No.: !50,41, 1I Procedure RevisionlFC C / Report No.: ZcPO2_ LA o I 0 Workscope: 2.-S T Work Order No.: 5 t L, 9 L, -
Page: _ of 1)Flaw Number l1 3) ISI Interval 3 - e' OK Reviewer 0
2) Item Number - ?DZ. L () 4) Code Edition & Addenda I 'i 85 M N - AdCeldc e OK Reviewer 0,O"
5) Acceptance Standard L - ?, S C) T OK Reviewer Aft-'
CA k )IS I .- -._ 6) Calculations (See Below) (i OK Reviewer -
I 'I, ce -- , So ,5- '
e&_ -
, C0
=
I z
, .7
'C>le x /0C'";"': - /S.S -, 0&(o;x/0CL' 3 G 0,7t,"' _.:: . 7S, 11-1/6 'U-r , t_ A, A\ \
C> 3L3V9'> ° .- v p tsr
,, la3.8Y 0 tS>3 50 7
.4 SY2c.
7) Results @ OK Reviewer , trfPLL i f.tIC*.'
a/ll . Code allowable a/t% = 3S Calculated a/t% = .3 a Laminar flaw surface area: (0.75 l w)= i/I
8) Table used for analysis (0 OK Reviewer d :z '8 - .5/ -/
9) Was linear interpolation used? OYes 0 No If no, why?
10) Was IWA-3200 Significant Digits For Limiting Values followed? ErYes 0 No If no, why?
11) The correct Code Edition and Addenda was available and used. VYes Preparer 4
-6 i OK Reviewer ,
12) Statement of acceptability or rejectability with basis.
OK Reviewer ' ~(?Accept 0 Reject 0 (aft) Code allowable > (alt) calculated /o 4s// 'o OEM flaw evaluation handbook (see attached analysis) o6, jA /'/i6t; I' -1 A- 2 2 d (alt) Code allowable < (alt) calculated s S'
13) Prenared by anp day 14) Engineering review by and date The results are correct and the methodology used is in accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used is in accordance with applicable codes, standards, specifications and procedures.
15) Apoved by and dte qut "t &Y Sk &1&2-/
This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity that the results and the methodology are correct and in accordance with applicable codes, standards, specifications and procedures.
r- tk
%--6--- L~S6NA YIB 5-1 s-,
a tt2!.
(~' Lx.V-,Cii" (4; krL.ALO~D LA Surface/Embedded CA 17.
, 90 It S :: ' - Flaw Demarkatlon
-- Ds:
5 ; 4 , '20:. 75 Une C 0.13 F-mboddod - FLAWESWAT an co ABOVE'ElTHIS LINE ARE 0.12 NOT A 3LLOWABLE 0.11 10, "20, 30 yrs.
0.1 0.09 c 0.08 co LL 0.07
('-)'y':)
n this Roo
= 0.06 Cons S U F
h. 0.05 co Ir '.,,
0.04 ALL EEMBEDDED FLAWS
CIA,
-:1 *7-5 S6
-0if 0.03 (ON l THIS SIDE OF DEM. %RKATION LINE)
AREAACCEPTABLE PER CRITI RIA OF IWB 3o 0.02 AS LCONG AS 2RASOf25
- . 03G
-1 .
0.01 0
0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 0.2 0.225 0.25 S61.i/ /, .C" tlhe z- b Distance from Surface (6/t) ,-izA -1 wt I 0
S gcf
- - -2 h~ A2-7 -
Figure A-2.4 Flaw Evaluation Chart for the Tubesheet-Channel Head Junction for Prairie Island Units 1 and-2 X Inside Surface Surface Flaw X Longitudinal Flaw x Embedded Flaw X Circumferential Flaw C. X Outside Surface
/ " " / ,&) J, 1299w.wpf:lb/0119 95 A2-A2-7
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface ASME SECT Xl 1989 WI NO ADDENDA SPC INITIAL TO VERIFY ISI Report# 2002U010 Evaluation Performed By: S. Cla Date:02/11102 Flaw # #11 Reviewed By: J. Wren CIJA - Date:02113/02 Lenath Length of the flaw "I' is determined by finding the difference between LI and L2 for perpendicular scans, WI and W2 for parallel scans.
L and W values are from page 2 of the UT report.
I= 3.3" (1-2) - 4.2" (LI) = - 0.9" inches.
Thickness Thickness of the component at the location of the flaw, usingor nom wall (circle one).
This value is from page 1 of the UT report.
"t"= 5.50 inches Calibration The measured angle in the calibration block was 46°. degrees Calculations usina metal path From page ..- of the UT report, Scan # 4 The flaw exhibited 20% DAC at 6.860 and 7.434 inches MP. Max amplitude is 7.079 inches MP with the transducer exit point at 3.60 inches from the centerline of the weld and 389.30 inches from the 0 reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
) Determine correction factor due to curvature.
Radius = 67.94" (R). Surface distance to max amp point = 5.092" ( C). C/R = .075_TAN.
INV TAN = 4.286 . COS = .997 . ( R I COS ) - R = .204" correction factor.
1) Determine the upper depth of the flaw from the exam surface.
6.860" (metal path at 20% upper)
COS of the measured angle 460 = 4.765" - .204" correction factor = 4.561 inches depth.
2) Determine the lower depth of the flaw from the exam surface.
7A34" (metal path at 20% lower)
COS of the measured angle 460 = 5.164" - .204" correction factor = 4.960. inches depth.
3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
7.079" (metal path at maximum amplitude point)
COS of the measured angle 460 = 4.917"
- .204" correction factor = 4.713 Inches depth.
4) Determine the distance from 0" reference to the maximum amplitude point of2the flaw.
7.079" (metal path at maximum amplitude point) squared = 50.112 (a ) 2 4.917" (depth at maximum amplitude point, before correction) squared = 24.177 (b )
2 2
va - b = 5.093 inches of surface distance to the flaw from the transducer exit point.
389.30 (Lmax) + or - 5.093" (surf dist) = 384.207 inches from 0" reference.
( + or - based on scan direction)
5) Determine S by picking the smaller of the following; S = 4.561" (result of 1) = distance between exam surface and the upper flaw tip
>> OR <<
S = 5.50 (part t) - 4.960 (result of 2) = 0.540" distance between the side opposite exam surface and the lower flaw tip
6) Determine 2d in though wall thickness.
4.960" (from step 2)- 4.561" (from step I) = .399 inches. 1.21
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented in plane normal to pressure retaining surface Determination of surface or subsurface 0.4d = (2d / 2)
0.4 = .080" Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = NIA inches.
If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a /2 = .200 inches.
I= .90" (for a/t> 0.5. 1= 2a) ti= 5.50" (part thickness) a= .20" (surf or@, circle one) S= .55" 53 . }21 I
-,11 4, -. ' I-I-I
-G -.r I; I ISI Flaw Sizing Worksheet NWDs I P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 SitelUnit: NMC Procedure Revision/FC: 9 l Report No.: 2002U010 Summary No.: 502618 1AIM,1 ^-4-e KM - 01 n69AR Pace: of Workscope: _ I__ _ vvuriKJ1uVu. 5......- -
1)Flaw Number *Ba .450 3) ISI Interval 3rd Interval 0 OK Reviewer ! u B2.40 4) Code Edition & Addenda 89 no addenda IF OK Reviewer
2) Item Number UTV
5) Method UT
6) Flaw Sketch (See Below) SKOK Reviewer -!
= .0 Flaw View "L" = 1.0" 394.25" CL 2.r Tube Sheet !1.7"t Head
.82"
'r 0.)to End View s ii/oz. Side View 0O Tube Sheet 394.25" Weld CL ------- ------------------------
7) Calculations 7) OK Reviewer Head Show determination of Surface or Subsurface See attached sheets fo calculations. Top View Show determination of type of 'a' to use See attached sheets fo calculations.
@Yes Preparer % OK Reviewer (;Q
8) ISI-FE-I ParaqraPh4- "Roundinq-off Method' was used
9) Code Flaw Dimensions S OK Reviewer s- = .qO owe = NIA L..Q. a-= A 0" it nominal = NIA It measured" = 5.5
"=
10) Flaw Type q OK Reviewer $ Subsurface Planara TRTn
11) Flaw Characterization Fiqure () OK Reviewer 9WA-3320-i
12) Flaw Characterization Fiqure Number - L I 2.
13) Was IWA-3300 Flaw Characterization followed? () Yes 0 No If no, why?
14) The correct Code Edition and Addenda was available and used. (i Yes Preparer i - K OK Reviewer °W 16)%ew.s b a Ii
15) Prepared b and date\ Z___ 2_
4 dnDB e0 _______
The review assures that the results are correct and the The results are corri3mnd the methodology used is in methodology used is in accordance with applicable codes, accordance with applicable codes, standards. specifications and standards, specifications and procedures.
procedures.
sI 5 ISI Flaw Disposition Worksheet SX-W
- -?> Outage No.: eP-2. FP2'oo SitelUnit. Io MC P1-.Z Procedure:
SO.l0(I1 3 Procedure Revision/FC: ReportNo.: aoeC Zu O iO Summary No.:
Workscope: _z Work Order No.: O I ) (,9 y L_ Page: of
1) Flaw Number '4 / Z 3) ISI Interval -3 ) OK Reviewer AHo.)
0-cl
2) Item Number j3 6 B z.yo 4) Code Edition & Addenda I e ' No Aldel-4'.. Q OK Reviewer H
> S L%q3 s f: -ArC 5) Acceptance Standard 0-0 6- ?3*i/ D ( OK Reviewer AWW-)
I * -r- S . - 6) Calculations (See Below) ( OK Reviewer egzk-'
S.3 = .Q°O IfI - _ ' S/o - if In -
. , So Is I-
- it ',D , /aOc,- , . ,-
n/R T- ,I/. - yo ) e ffi G<-Z~ OO; y =. I g.Fy ::5
~g f2at-r T'A -Zc-rj '3S-'V -/
CA11A _J---
/ 'ii - 7 32 O/'6., Ye _: S -3 20 l-AL GL a J"H
-v -HA ii~ +K 9 tE tic- L>, Cr\P 11 l L, (p - rL NU.)
F-J~ %. oLk RV -17 en, HAv-3D e, r
7) Results 0 OK Reviewer cat a/l = J0. Code allowable alt% = 5, X 2 Calculated all% = 7 3??. Laminar flaw surface area: (0.75 X w) = /61L
8) Table used for analysis 0 OK Reviewer 1O S .C 3 3S-10 -/
9) Was linear interpolation used? 0 Yes O No If no, why?
(P/Yes 0 No If no, why?
10) Was IWA-3200 Significant Digits For Limiting Values followed?
G( es Preparer 4 0 OK Reviewer ,
11) The correct Code Editon and Addenda was available and used.
,2! z Accept 0 Reject
12) Statement of acceptability or rejectability with basis. (a OK Reviewer 0 (aft) Code allowable> (aft) calculated flaw evaluation handbook (see attached analysis) rLAaJ Ac CieerA t3LC b x _CC N iL a f
{OEM V (a/t) Code allowable < (alt) calculated 5 A -2. PHer A 2- 7,
13) Prepared by and date /,-/f-. 7,a2
,<-H fi;1 This review assures that the results are correct and the The results are correct and the methodology used is in accordance methodology used is in accordance with applicable codes, with applicable codes, standards, specifications and procedures.
standards, specifications and procedures.
15) Appyved byand e the results and the This approval assures that all Involved with this flaw sizing and flaw disposition were aware of the necessity that and in accordance with applicable codes, standards, specifications and procedures.
methodology are correct
t-' -', .c a I~
I. -, 4? ~AI2PI
-'& :;. CC t-_ i CA. -= .HOi Af
~:
~*-.. c.~c)
Surface/Emboddad Flaw Demarkatlon Une C. 0.13 F1 - FLAWS WITH dA ABOVE THIS LINE ARE 0.12 NOT ALLOWABLE 0.11
' 10, 20, 30 yrs.
0.1 0.09 M Ir1 3)
0.08 41 LL 0.07 Flaws In this Region Mue 0.0 Considered
= 0,06 Surface Flaws
. 0.05 a,.0' CZl CA _TL5 i I 0.04 ALL EMBEDDED FLAWS (ON THIS SIDE OF 0.03 DEMARKATION UNE)
ARE ACCEPTABLE PER CRrTERIA OF IWB 360 0.02 AS LONG AS 2aUtsO.25 0.01
&~ :5- -
aI 0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 02 0.225 0.25 Distance from Surface (6/t) e I -_ , , .,IY-cd i 0 2'-I Figure A-2.4 Flaw Evaluation Chart for the Tubesheet-Channel Head Junction for Prairie Island Units I and 2 X Inside Surface Surface Flaw X Longitudinal Flaw X Outside Surface X Embedded Flaw X n _ ..__.... _ ._.. . Flaw Circumferential C.
16 a-2/Y- c 2-1299w.wp~: lb/011995 A2-7
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented in plane normal to pressure retaining surface ASME SECT Xl 1989 WI NO ADDENDA SPC INITIAL TO VERIFY ISI Report# 2002U010 Evaluation Performed By: S. Cla Date:02111102 Flaw # #12 Reviewed By: J. Wren Date:02113102 Lenath Length of the flaw 'r is determined by finding the difference between Li and L2 for perpendicular scans, WI and W2 for parallel scans.
L and W values are from page 2 of the UT report.
I= 1.7" (L2) - 2.7" (L1) = - 1.0" inches.
Thickness Thickness of the component at the location of the flaw, usinqg or nom wall (circle one).
This value is from page I of the UT report.
t = 5.50 inches Calibration The measured angle in the calibration block was 460 degrees S el-,-*Z Calculations using metal path From page .j. of the UT report, Scan # 3 The flaw exhibited 20% DAC at 5.605 and 6.786 inches MP. Max amplitude is 5.903 inches MP with the transducer exit point at 2.5 inches from the centerline of the weld and 390.00 inches from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
) Determine correction factor due to curvature.
Radius = 67.94" (R). Surface distance to max amp point = 4.246" ( C). CR = .03TAN.
INV TAN = 3.576 . COS = .998L . (RI COS ) - R = .1 36" correction factor.
1) Determine the upper depth of the flaw from the exam surface.
5.605" (metal path at 20% upper)
COS of the measured angle 46°. = 3.894" - .136" correction factor = 3.758 inches depth.
2) Determine the lower depth of the flaw from the exam surface.
6.786" (metal path at 20% lower)
COS of the measured angle 46° = 4.714" - .136" correction factor = 4.578 inches depth.
3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
5.903" (metal path at maximum amplitude point)
COS of the measured angle 46° = 4.101"
- .136" correction factor = 3.965 inches depth.
4) Determine the distance from 0 reference to the maximum amplitude point of the flaw.
2 5.903" (metal path at maximum amplitude point) squared = 34.845 (8 ) 2 4.101" (depth at maximum amplitude point, before correction) squared = 16.818 (b )
4 a2 - b2 = 4.246 inches of surface distance to the flaw from the transducer exit point.
390.00 (Lmax) + or - 4.246" (surf dist) = 394.246 inches from 0" reference.
( + or - based on scan direction)
5) Determine S by picking the smaller of the following; S = 3.758" (result of 1) = distance between exam surface and the upper flaw tip
>> OR "
S = 5.50 (partt) - 4.578 (result of 2) = 0.922" distance between the side opposite exam surface and the lower flaw tip
6) Determine 2d in though wall thickness.
4.578" (from step 2) - 3.758" (from step 1) = .820 inches.
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface Determination of surface or subsurface 0.4d = (2d 12)
0.4 = .164" Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = N/A inches.
IfS is greater than or equal to O.4a the flaw is sub-surface. a =2a /2 = .410 inches.
= 1.0" (for a/t> 0.5. L= 2a) t= 5.5" (part thickness) a= .40" (surf o xtu, circle one) So .0 l
159 - IJ-10j ISI Flaw Sizing Worksheet WD Site/Unit: NMC I P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 Summary No.: 502618 Procedure Revision/FC: 9 I Report No.: 2002U010 WnrkzrnnP. 'SI Work Order No: 0106946 Page: of
1) Flaw Number B0135c 3) ISI Interval 3rd Interval la OK Reviewer 82.40 4) Code Edition & Addenda 89 no addenda ( OK Reviewer
2) Item Number
5) Method UT OKeer (j; OK Reviewer_____
6) Flaw Sketch (See Below)
Flaw View L' = 1.1" I 393.20" I CL 3.5" Tube Sheet 2.4" Head Bj .49-
.34' End View Side View 0 Tube Sheet 393.20" Weld CL -------- ------- ---- _- --- --- -- -- _ -- --- --
7) Calculations FM OK Reviewer 4f a Head Show determination of Surface or Subsurface See attached sheets fo calculations.
Top View Show determination of type of "a" to use See attached sheets fo calculations.
G Yes Preparer 2 - Ad OK Reviewer A 8)1Si-FE-1 Paraqraph-JWe"Roundinq-off Method" was used
9) Code Flaw Dimensions Pt OK Reviewer4-62Z 5.5 .sW = 3 3.,' wn = NIA "I" = . . "a" = "t nominal = NIA t measured' =
10) Flaw Type LOOK Reviewer 9 Subsurface Planar'NRT)
11) Flaw Characterization Fiqure ( OK Reviewer WA-3320-1
12) Flaw Characterization Fiqure Number FLAk .) j
13) Was IWA-3300 Flaw Characterization followed? i Yes 0 No If no, why?
viewer (i Yes Preparer 6FC...(. OK R,reviewer --'(t
14) The correct Code Edition and Addenda was available and used.
15) Prepared b and date \ 16) Review by and date 2-1-ti .Z 4,e.Qr -, FL Ju y Os-11-0, ~ CI/{q ,%
The Cview assures that the results are correct and the The results are correct and the methodology used is in methodology used is in accordance with applicable codes, accordance with applicable codes, standards, specifications and procedures. standards, specafications and procedures.
I,.] 0 dF A2_L T, ISI Flaw Disposition Worksheet fRPORTI_
Site/Unit: IVAdc! /PT 2 Procedure: _________ Outage No.: A4f:Z i>/~
Summary No.: 5A04 6 i Procedure Revision/FC: 9 / Report No.: o7evolo Workscope: Zr$r Work Order No.: Z> /SOD 5/V 6 Page: of
1) Flaw Number _ 3 3) ISI Interval _ _ _ _ _ (3 OK Reviewer 44 ;Wkl4e & OK Reviewer J
2) Item Number - .2. 5 4) Code Edition & Addenda ,9.,
5) Acceptance Standard ./I1*?3- 3 /D1 ( OK Reviewer
6) Calculations (See Below) Q'OK Reviewer a,1 a4= ,) 5/r i_~~. /
'." , ,, 35 4/00 .. :. 4Y.- /
'/g; - ' dn,, 3 .a I
75;`'
-,, z g Pa 3 I /L ,
e" t' __3 7rayL; , ZC83- 3 3 -C-/,corsz yf!J e ;j be - //= 4
7) Results W3'OK Reviewer a Laminar flaw surface area: (0.75 l w)=
all =
u3 Code allowable a/t% = 3 .- Calculated a/t% = 5/
8) Table used for analysis ( OK Reviewer X , 3 - -
9) Was linear interpolation used? @ Yes 0 No If no, why?
10) Was IWA-3200 Significant Digits For Umiting Values followed? 6 Yes 0 No If no, why?
11) The correct Code Edition and Addenda was available and used. @Yes Preparer A dz'-1 0 OK Reviewer ;6
12) Statement of acceptability or rejectability with basis. ( OK Reviewer AJAX 0 Accept 0 Reject o (a/t) Code allowable> (a/t) calculated AcI,? ,; c£e73-
OEM flaw evaluation handbook (see attached analysis) e V-/4/c 6 5 t (aft) Code allowable < (alt) calculated A t 2 _-7
14) Engeering re and date
13) Prepared b and ate
--2W /Y-t -- o h s- /Y °tI The results are correct and the methodology used is in accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used is in accordance with applicable codes, standards, specifications and procedures.
15) Approed by and /af and the This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity that the results methodology are correct and in accordance with applicable codes, standards, specifications and procedures.
e.'5f41~,kP2?.l 6s-0,2e 2 PAGE 4L OF l2aL Al, 2.%( 10 1, REPORT# ______
~ZZ // -, 53 = 35 Surface/Embedded Flaw Demarkatlon Une
('I 0.13 bedded Flaw
-FLAWS WITH a/t ABOVE THIS LINE ARE 0.12 NOT ALLOWABLE 0.11 10, 20, 30 yrs.
0.1 0.09 c 0.08 LL 0.07 Region Must Considered
= 0.06 Surbee Flaws 4- 0.05 co 0.04 ALL EMBEDDED FLAWS (ON THIS SIDE OF "5
P 0.03 DEMARKATION LINE) a-,/-_ ,,z ARE ACCEPTABLE PER 5 7; 0.02 CRITERIA OF IWB 3600 AS LONG AS 2att0.25 j' 0!5 0.01 0o2a I
0 0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 0.2 0. 225 0.25 Distance from Surface (6/t) c, <Z e,.Orlwr S _* _55 _ ,& =, _
_C 5-.-7V 5- po~0 - e/ 6/
Figure A-2. '4 Flaw Evaluation Chart for the Tubesheet-Channel Head Junction for Prairie Island Units 1 and 2 Y ,& ,
Inside Surface Surface Flaw X Longitudinal Flaw x X Circumferential Flaw
(. x Outside Surface X Embedded Flaw 1299w.wpf:lb/011995A2- A2-7
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented in plane normal to pressure retaining surface ASME SECT Xi 1989 WI NO ADDENDA SPC INITIAL TO VERIFY ISI Report # 2002U010 Evaluation Performed By: S. Clay Date:02/11/02 Flaw# #13 Reviewed By: J. Wren C Date:02/13/02 Lenath Length of the flaw "C'is determined by finding the difference between LI and L2 for perpendicular scans, WI and W2 for parallel scans.
L and W values are from page 2 of the UT report.
I= 2.4" (L2) - 3.5" (Li) = - 1.1" inches.
Thickness Thickness of the component at the location of the flaw, using UT or nom wall (circle one).
This value is from page I of the UT report.
"t" = 5.50 inches Calibration The measured angle in the calibration block was 460 degrees Calculations using metal path From page do of the UT report, Scan # 3 The flaw exhibited 20% DAC at 7.023 and 7.725 inches MP. Max amplitude is 7.222 inches MP with the transducer exit point at 2.5 inches from the centerline of the weld and 388.00 inches from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
) Determine correction factor due to curvature.
Radius = 67.94" (R). Surface distance to max amp point = 5.195" (C). C/R = .076 TAN.
INV TAN = 4.373 . COS = .997.. ( R / COS ) - R = .204" correction factor.
1) Determine the upper depth of the flaw from the exam surface.
7.023" (metal path at 20% upper)
COS of the measured angle 460 = 4.879" - .204" correction factor = 4.675 inches depth.
2) Determine the lower depth of the flaw from the exam surface.
7.725" (metal path at 20% lower)
COS of the measured angle 460 = 5.366" - .204" correction factor = 5.162 inches depth.
3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
7.222"' (metal path at maximum amplitude point)
COS of the measured angle 460 = 5.017"
- .204" correction factor = 4.813 inches depth.
4) Determine the distance from 0" reference to the maximum amplitude point of the flaw.
7.222" (metal path at maximum amplitude point) squared = 52.157 (a,)
2 5.107" (depth at maximum amplitude point, before correction) squared = 25.170 (b )
a - b = 5.195 inches of surface distance to the flaw from the transducer exit point.
2 2 388.00 (Lmax) + or- 5.195" (surf dist) = 393.195 inches from 0" reference.
( + or - based on scan direction)
5) Determine S by picking the smaller of the following; S = 4.675" (result of 1) = distance between exam surface and the upper flaw tip
>>> OR cc S = 5.50 (part r) - 5.162 (result of 2) = 0.338" distance between the side opposite exam surface and the lower flaw tip
6) Determine 2d in though wall thickness.
5.162" (from step 2) - 4.675" (from step 1) = .487 inches.
1,:' " " R'?,
1. I -- --.
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface Determination of surface or subsurface 0.4d = (2d /2)
0.4 = .097" Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = N1A inches.
If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a /2 = .244 inches.
C= 1.1" (for a/l> 0.5 = 2a) t= 5.5" (part thickness) a= .25" (surf orb4 ~ cirde one) S= .35"
i%.S; t:EVil OF atL Q ISI Flaw Sizing Worksheet Site/Unit: NMC I P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 Summary No.: 502618 Procedure RevisionIFC: 9 1 - Report No.: 2002U010 W-And4e V I U I Na w on H U .
Isl Work Order No.: 0106946 Page: of 60 #1 3) ISI Interval 3rd Interval (1 OK Reviewer 9
1) Flaw Number B2.40 4) Code Edition & Addenda 89 no addenda A OK Reviewer c
2) Item Number
5) Method UIT
6) Flaw Sketch (See Below) (&OK Reviewer - J Flaw View 00 93.83" .79" C 27L" = 0.8"
_60" 1.9" Tube Sheet Head End View Side View 0* Tube Sheet I
1 92.83"
- I Weld CL _ - - -
I
7) Calculations ED OK Reviewer)L iI Show determination of Surface or Subsurface Head See attached sheets fo calculations.
Top View Show determination of type of 'a' to use See attached sheets fo calculations.
(3 Yes Preparer @ OK Reviewer 5pRW
8) ISI-FE-1 Paraqraph3..8- 'Roundinq-off Method" was used
9) Code Flaw Dimensions to) OK Reviewer
s. = . W v= NIA
'r= A), a"= .3SD It nominal, = N/A Itmeasured' = 55
10) Flaw Type (?OK Reviewer - Subsurface PlanariaRT)
11) Flaw Characterization Fiqure (C OK Reviewer .SZ WA-3320-1
12) Flaw Characterization Fiqure Number FLA -S) I
13) Was IWA-3300 Flaw Charactenzation followed? (3 Yes 0 No If no. why?
Al! _ ev i w. 01 (i) Yes Preparer . tZ urK Reviewer e-
14) The correct Code Edition and Addenda was available and used.
15) Prepared by ar~d date rd~ fIWOoYiw hv aind daite r 6eA LAI- 11> g_02 -o - 3E _-fi_ _- 2 - I'l -e) L The results are correct and thrmethodology used is in The rAvdw assures that the results are correct and the accordance with applicable codes, standards. specifications and methodology used is in accordance with applicable codes, standards, specifications and procedures.
procedures.
ISI Flaw Disposition Worksheet ,r~e y_ ; I; Wc" Site/Unit: 4'A 1 ce I PZ2_ Procedure: :7$.-f7-3 Outage No.: ,RF:2iZR4, 2 Summary No.: 5-2 , Ail Procedure RevisionlFC 9 I Report No.: Sco/C Workscope: -i495Y Work Order No.: G/614 sVV6 Page: of
1) Flaw Number 66) '/ 3) ISI Interval ?W,/ COOK Reviewer
2) Item Number -2 £,2.tc) 4) Code Edition & Addenda A dz 1/4g9,4e, G'OK Reviewer 8e /
5) Acceptance Standard Z~c)&- ?:,7/e (QOK Reviewer A:
6) Calculations (See Below) G©OK Reviewer j/= , '
Z = 6.5 "
- I-0 a 3 S- r '3 <E/ 6LI7 00 o -=4;-. 139 iPrv JD 7.
5-A, -;5 I/ 6/'0/.= - i; If 71hge-f 3SS10 - / co ?/ _ /
alkb _ DI
@ d. ;a_ - a-, 9
6) , MD/c 7 ( .C'.g)
5-. 63 -:F, I ( . '3 0 -, 3 3) + -5"I = --- + .5%1 t- 5-,52
'05,
qc. - .-3 7 AEl' ,' 5..:5-, qv, /" = "-1*%
eatV , - ' 4Z&4 god11V 3-B 3?S'/
7) Results i) OK Reviewer L 'Ax 5%s.
a/l= ,39 Code allowable at% = 65, 5< Calculated a/t% = t;> Laminar flaw surface area: (0.75 l w)= A/?
8) Table used for analysis 6 OK Reviewer MAR ;Z 2 3 3 /O -/
9) Was linear interpolation used? 0 Yes 0 No If no. why?
10) Was IWA-3200 Significant Digits For Limiting Values followed? i Yes 0 No If no, why?
11) The correct Code Edition and Addenda was available and used. 0"Yes Preparer adz Q OK Reviewer AdL
12) Statement of acceptability or rejectability with basis. e OK Reviewer /
Accept 0 Reject
(alt) Code allowable > (alt) calculated o OEM flaw evaluation handbook (see attached analysis) o (alt) Code allowable < (a/t) calculated
3) Prepared by and date 14) Engineering review and date g -/
IV, V Ma.g . C;L o The results are correct and the methodology used is in accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used is in accordance with applicable codes, standards, specifications and procedures.
15)A Aqroved by and ate
_______ SE //fi0 This approval assures that all Involved with this flaw sizing and flaw disposition were aware of the necessity that the results and the methodology are correct and in accordance with applicable codes, standards, specifications and procedures.
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface ASME SECT Xl 1989 WI NO ADDENDA SPC INITIAL TO VERIFY ISI Report # 2002U010 Evaluation Performed By: S. Clay I Date:02111/02 Flaw # 600#1 Reviewed By: J. Wren ,v-.----- Date:02/14/02 Length Length of the flaw Tr is determined by finding the difference between LI and L2 for perpendicular scans, WI and W2 for parallel scans.
L and W values are from page 5 of the UT report.
I= 1.9" (12) - 2.7" (LI) = - 0.8" inches.
Thickness Thickness of the component at the location of the flaw, usinT r nom wall (drcle one).
This value is from page 1 of the UT report.
"t" = 5.50 inches Calibration The measured angle in the calibration block was 630 degrees Calculations using metal path From page 5 of the UT report, Scan # 4 The flaw exhibited 20% DAC at 1.750 and 3.080 inches MP. Max amplitude is 2.160 inches MP with the transducer exit point at 2.2 inches from the centerline of the weld and 95.75 inches from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
) Determine correction factor due to curvature.
Radius = 67.94" (R). Surface distance to max amp point = 1.925" ( C). CIR = .028 TAN.
INV TAN = 1.623 . COS = 1.000 . (R /COS ) - R = .000" correction factor.
1) Determine the upper depth of the flaw from the exam surface.
1.750" (metal path at 20% upper)
COS of the measured angle 63° = .794" - .000" correction factor = .794 inches depth.
2) Determine the lower depth of the flaw from the exam surface.
3.080" (metal path at 20% lower)
COS of the measured angle 630 = 1.398" - .000" correction factor = 1.398 inches depth.
3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
2.160" (metal path at maximum amplitude point)
COS of the measured angle 630 = -
.000" correction factor = .981 inches depth.
4) Determine the distance from 0" reference to the maximum amplitude point of the flaw.
2 2.160" (metal path at maximum amplitude point) squared = 4.666 (a )
.981" (depth at maximum amplitude point, before correction) squared = .962 (b2) v2 - b2 = 1.924 inches of surface distance to the flaw from the transducer exit point.
95.75 (Lmax) + or - 1.924" (surf dist) = 93.826 inches from 0 reference.
( + or - based on scan direction)
5) Determine S by picking the smaller of the following; S = .794" (result of 1) = distance between exam surface and the upper flaw tip
>> OR <<
S = 5.50 (part gf) - 1,398 (result of 2) = 4.102" distance between the side opposite exam surface and the lower flaw Up
6) Determine 2d in though wall thickness.
1.398" (from step 2)- .794" (from step 1) = .604 inches. : 12 1
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface Determination of surface or subsurface 0.4d=(2d/2)O0.4= .121" Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = NIA inches.
If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a /2 = .302 inches.
I = .80" (for af > 0.5,1 = 2a) t = 5.5" (part thickness) a= .30" (surf orb circle one) S = .80" rr - .
IS! Flaw Sizing Worksheet I,, e_ - _
WiD NMC I P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 Site/Unit:
502618 Procedure Revision/FC: 9 / - Report No.: 2002U010 Summary No.:
AlAr>PP^nCO-
... . . _ _ _ _ . Illc I3l W-1, Cirrior Kno.
lfulUIr VIUWI *V.. _ _ _
0106946 Page: of yvUI ,W r, .-
1)Flaw Number 49 0 3) ISI Interval 3rd Interval g OK Reviewer <NIlw B2.40 4) Code Edition & Addenda 89 no addenda WOK Reviewer
2) Item Number
5) Method UT
6) Flaw Sketch (See Below) VOK Reviewer Flaw View 113.48" l 1.94" IL" = 0.8" C 3.8" 1
,: .8 30 Head Tube Sheet ; 3.0" End View Side View 0* Tube Sheet 11 3.48" Weld CL ------ 4I --- _ _ _ _ _ _ _ _ _ _ -- 1 --
7) Calculations A OK Reviewer _ il Head Show determination of Surface or Subsurface See attached sheets fo calculations. Top View Show determination of type of 'a' to use See attached sheets fo calculations.
S, fT OK Reviewer<Z"
8) ISI-FE-1 Paraqraph>- 'Roundinq-off Method' was used ( Yes Preparer
9) Code Flaw Dimensions Q5 OK Reviewer Ash= .. "wn = NIA NIA tmeasuredw = 5.5 r=
I.I2QaI aR= t nominal =
10) Flaw Type T OK Reviewer 5 Subsurface PIanardaRnl
11) Flaw Characterization Figure ,& OK Reviewer <ifJ lWA-3320-1
12) Flaw Characterization Figure Number P4ALJ .1
13) Was IWA-3300 Flaw Characterization followed? i Yes 0 No If no. why?
AJ
14) The correct Code Edition and Addenda was available and used. (3 Yes Preparer : 6D.OK RE vIwI Ins,;ounr
.ele1 SoJ
&u -
16 d
15) Prepared by and date 1'- I q s 7L 4?r1,2 .2 .
The review assures that the results are correct and the The results are correct and the methodology used is in methodology used is in accordance with applicable codes, accordance with applicable codes, standards, specifications and standards, specifications and procedures.
procedures.
FA6E _ __ OF ..21_
ISI Flaw Disposition Worksheet 4N40 fREPORF t Site/Unit: Aim)) C. I p1- Procedure: AS-r -X i* - 3 Outage No.: e 1 2- .RaZ.c, Z Summary No.: 5 SO ( I 8 Procedure Revision/FC: 9 / Report No.: ZeC0L (A - i 0 Workscope: Is k Work Order No.: 0 I () eIt I- Page: of 1)Flaw Number F -2 AO 3) ISI Interval 0 OK Revi!ewer HUGE 2)Item Number 'A -(3 z ,o 4) Code Edition & Addenda 19 e 9 AJk AL4&tI4. _ 0 OK Revi[ewer _____
.t.L - 35'o 0 OK Rev! Fewer S ,. 5) Acce ptan ce Stand ard".A I I VI %'41%UlaUU~ll k.tlv: Dt:IuWJ ( OK ReviFewer A S; /.
a-, _Z c E3 y = /Ge, "I ~ e76__3 Lko? G2 - 1.9" 2.
g * £Zt k2 E4 ,J 7-I
' viy=
i-a IS FAct CALC 11" : 3.?y
7) Results -' OK Reviewer ,
all = . GaS Code allowable a/t% = 3. 5 - Calculated a/t% = 3. (o37. Laminar flaw surface area: (0.75 l w) = AJI
8) Table used for analysis 0 OK Reviewer _ brL1 : i- - 5 Vo- Ia
9) Was linear interpolation used? 0 Yes 0@iNo If no. why?
0 W-30 cL F
10) Was IWA-3200 Significant Digits For Umniting Values followed? 0Yes 0 No If no. why?
0 Yes Preparer < 0 OK FReviewer ,2nc.
11) The correct Code Edition and Addenda was available and used.
12) Statement of acceptability or rejectability with basis. 0 OK Reviewer so-ccept (DIA 0 Reject i(alt) Code allowable > (a/t) calculated o OEM flaw evaluation handbook (see attached analysis) o (a/t) Code allowable < (aft) calculated
13) Prep red by and date , 14) Engineeringg rev ew by and date
,j:z/&O L The results are correct and the methodology used is in accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used Is In accordance with applicable codes, standards, specifications and procedures.
15) Ap ved by and date This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity that the results and the methodology are correct and in accordance with applicable codes, standards, specifications and procedures.
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface ASME SECT Xl 1989 W/ NO ADDENDA SPC INITIAL TO VERIFY ISI Report # 2002U010 Evaluation Performed By: S. Clay Date:02112/02 Flaw # 600#2 Reviewed By: J. Wren G Date:02112102 Lenath Length of the flaw "r is determined by finding the difference between Li and L2 for perpendicular scans, WI and W2 for parallel scans.
L and W values are from page 5 of the UT report.
I= 3.0" (L2) - 3.8" (L1) = - 0.8" inches.
Thickness Thickness of the component at the location of the flaw, using J or nom wall (circle one).
This value is from page I of the UT report.
"t" = 5.50 inches Calibration The measured angle in the calibration block was 630 degrees Calculations using metal path From page 5 of the UT report, Scan # 4 The flaw exhibited 20% DAC at 4.580 and 5.410 inches MP. Max amplitude is 5.070 inches MP with the transducer exit point at 3.3 inches from the centerline of the weld and 118.00 inches from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
) Determine correction factor due to curvature.
Radius = 67.94" (R). Surface distance to max amp point = 4.517" ( C). CIR =.066 TAN.
INV TAN = 3.804 . COS = .998 . ( R /COS ) - R = .136" correction factor.
1) Determine the upper depth of the flaw from the exam surface.
4.580" (metal path at 20% upper)
COS of the measured angle 630 = 2.079" - .136" correction factor = 1.943 inches depth.
2) Determine the lower depth of the flaw from the exam surface.
5.410" (metal path at 20% lower) COS of the measured angle 63° = 2.456" - .136" correction factor = 2.320 inches depth.
3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
5.070" (metal path at maximum amplitude point)
COS of the measured angle 630 = 2.302"
- .136" correction factor = 2.166 inches depth.
4) Determine the distance from 0" reference to the maximum amplitude point of2 the flaw.
5.070" (metal path at maximum amplitude point) squared = 25.705 (a ) 2 2.302" (depth at maximum amplitude point, before correction) squared = 5.299 (b )
2 va - b =
2 4.517 inches of surface distance to the flaw from the transducer exit point.
118.00 (Lmax) + or - 4.517" (surf dist) = 113.483 inches from 0" reference.
(+ or - based on scan direction)
5) Determine S by picking the smaller of the following; S = 1.943" (result of 1) = distance between exam surface and the upper flaw tip
>> OR <<
S = 5.50 (part t) - 2.320 (result of 2) = 3.180" distance between the side opposite exam surface and the lower flaw tip
6) Determine 2d in though wall thickness.
2.320" (from step 2) - 1.943" (from step 1) = .377 inches.
r,- '~4-
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface Determination of surface or subsurface 0.4d = (2d / 2)
0.4 = .076" Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = N/A inches.
If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a /2 = .189 inches.
f = .80" (for a/C > 0.5, t = 2a) t= 5.5" (part thickness) a= .20" (surf or 9 , circle one) S= 1.9"
_7( 121
I., , -- ijr 12(
QD ISI Flaw Sizing Worksheet . 11 ,, -
Site/Unit NMC P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 Summary No.: 502618 Procedure RevisionlFC: 9 1 _ Report No.: 2002U010 MI1 Weri Ordecr No. 0106946 Pace: -
of -
YYU[Ksi. Pe:. -,' --- , ... ..
1) Flaw Number :*-3 6(0 3) IS Interval 3rd Interval K OK Reviewer lz>
62.40 4) Code Edition & Addenda 89 no addenda (X OK Reviewer 4=rA1.1
2) Item Number 0,
5) Method UT
6) Flaw Sketch (See Below) (3 OK Reviewer Flaw View 145.2" I "..L" = 0.4" CL
,=.!
.79" 0.2" Head Tube Sheet 2.3" End View Side View 0* Tube Sheet 145.2" Weld CL ------- F---------------------i--------------------------
7) Calculabons OK Reviewers. Head Show determination of Surface or Subsurface See attached sheets fo calculations. Top View Show determination of type of 'a' to use See attached sheets fo calculations.
G( Yes Preparer @ OK Reviewer wUw
8) ISI-FE-1 Paraqraph ;-e- 'Roundinq-off Method' was used
9) Code Flaw Dimensions ( OK Reviewer ne = 0?. so w = NIA I1"
= *RbL wag = .IP -t nominal = NIA "tmeasured = 5.5
10) Flaw Type OK Reviewer _ Subsurface PlanargART,
11) Flaw Characterization Fiqure (WOK Reviewer IWA-3320-1
12) Flaw Charactenzation Fiqure Number kLfd t c (3 Yes 0 No If no, why?
13) Was IWA-3300 Flaw Charactenzation followed?
14) The correct Code Edition and Addenda was available and used.
15) Prepared by, and date 1 (3 Yes 16)
Preparer 'W ,. Q-OK Reviewer F Z...P myv., -:~.
C JAA IL _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
The review assures that the results are correct and the The results are correct and the methodology used is in methodology used is in accordance with applicable codes, accordance with applicable codes, standards, specifications and procedures. standards, specifications and procedures.
I . 73 i..
ISI Flaw Disposition Worksheet . , ~t - _
f iMOD Site/Unit: Procedure: ADZ?-- 3 Outage No: Z 70er26 2L Summary No.: e 5j,2/1_ Procedure RevisionlFC: 9 / Report No: co'zy Ovoi,)
Workscope: ZSX Work Order No.: OIA1 254 Page: of
1) Flaw Number 1O "3 3) ISI Interval 3 /. te OK Reviewer /'J/
2) ItemrNumber ?-S 8o?, 4) Code Edition & Addenda 11£09t, 1W°, O/OK Reviewer . d/&
5) Acceptance Standard 'k-3.$7C) Q/OK Reviewer IzY
6) Calculations (See Below) (>OK Reviewer fwz/,$
5/ #zaed ..*1 7 ,3 %
I,/, 1I . e D3
Y t' Z'
.0 Co-/
49= -1V4, 'I 5
= 1.5d-D Zw,3 3/v- /
7) Results Q) OK Reviewer / <
a/l = .50 Code allowable alt% = 27 6 Calculated a/t% = Laminar flaw surface area: (0.75 l w)= 1UJg
8) Table used for analysis P OK Reviewer A ;.kf - 3S7e - /
9) Was linear interpolation used? () Yes FNo If no, why?
10) Was IWA-3200 Significant Digits For Limiting Values followed?
Yes 0 No If no, why?
11) The correct Code Edition and Addenda was available and used. 0 Yes Preparerosj.a- e OK Reviewer Ad
12) Statement of acceptability or rejectability with basis. 0 OK Reviewer (O Accept 0 Reject 0 (a/t) Code allowable > (alt) calculated o OEM flaw evaluation handbook (see attached analysis) o (a/l) Code allowable < (alt) calculated
13) Prepared b and date 14) i reby and date The results are correct and the methodology used is in accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used is in accordance with applicable codes, standards, specifications and procedures.
15) Aproved by ano date This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity that the results and the methodology are correct and In accordance with applicable codes, standards, specifications and procedures.
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface ASME SECT Xl 1989 W/ NO ADDENDA SPC INITIAL TO VERIFY ISI Report # 2002U010 Evaluation Performed By: S. Clay Date:02112/02 Flaw # 60°#3 Reviewed By: J. Wren C Date:_2--I3-'<Z Lenath Length of the flaw "r is determined by finding the difference between Li and L2 for perpendicular scans, WI and W2 for parallel scans.
L and W values are from page 5 of the UT report.
I= -0.2" (L2) - + 0.2" (L1) = - 0.4" inches.
Thickness Thickness of the component at the location of the flaw, using OThr nom wall (circle one).
This value is from page 1 of the UT report.
"t" = 5.50 inches Calibration The measured angle in the calibration block was 630 degrees Calculations using metal Dath From page 5 of the UT report, Scan # 3 The flaw exhibited 20% DAC at 5.910 and 7.650 inches MP. Max amplitude is 6.740 inches MP with the transducer exit point at 0.0 inches from the centerline of the weld and 139.20 inches from the O" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
) Determine correction factor due to curvature.
Radius = 67.94" (R). Surface distance to max amp point = 6.005" ( C). ClR = .088_TAN.
INV TAN = 5.029 . COS = .996 . ( R/ COS ) - R = .273 correction factor.
1) Determine the upper depth of the flaw from the exam surface.
5.910" (metal path at 20% upper) *COS of the measured angle 630 = 2.683" - .273 correction factor = 2.410 inches depth.
2) Determine the lower depth of the flaw from the exam surface.
7.650" (metal path at 20% lower)
COS of the measured angle 63° = 3.473" - .273" correction factor = 3.200 inches depth.
3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
6.740" (metal path at maximum amplitude point) ' COS of the measured angle 630 = 3.060"
- .273" correction factor = 2.787 inches depth.
4) Determine the distance from 0" reference to the maximum amplitude point of2 the flaw.
6.740" (metal path at maximum amplitude point) squared = 45.428 (a ) 2 3.060" (depth at maximum amplitude point, before correction) squared = 9.364 (b )
a2 - b2 = 6.005 inches of surface distance to the flaw from the transducer exit point.
139.20 (Lmax) + or - 6.005" (surf dist) = 145.205 inches from 0" reference.
( + or - based on scan direction)
5) Determine S by picking the smaller of the following; S = 2.410" (result of 1) = distance between exam surface and the upper flaw tip
>> OR <<
S = 5.50 (part st") - 3.200 (result of 2) = 2.300" distance between the side opposite exam surface and the lower flaw tip
6) Determine 2d in though wall thickness.
3.200" (from step 2)- 2.410" (from step 1)= .790 inches. 12
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface Determination of surface or subsurface 0.4d=(2d/2)*0.4= .158" Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = N/A inches.
If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a /2 = .395 inches.
I = .80" (for alL> 0.5. I = 2a) t= 5.5" (part thickness) a= .40" (surf op circle one) S= 2.3"
. 74P '! h!21 WD ISI Flaw Sizing Worksheet Site/Unit: NMC / P12 Procedure, ISI-UT-3 Outage No.: P12RF2002 Summary No.: 502618 Procedure RevisionlFC: 9 1 - Report No.: 2002U010
\A .I..ecmn VVVumQWP. V.-. IQ? Work (Irder
-.-. Nno.
r.
0106946 Page: _ of
1) Flaw Number (o40 3) ISI Interval 3rd Interval (a OK Reviewer 9
2) Item Number B240_ __ 4) Code Edition & Addenda 89 no addenda ( OK Reviewer
5) Method UT
6) Flaw Sketch (See Below) V OK Reviewer Flaw View 141.03" Al 1.91" `Lo = 0.9" CLI ______________________________________________________
4.5" 41" Tube Sheet 3.6" Head End View Side View 0* Tube Sheet 141.03" Weld CL
7) Calculations (P OK Reviewer 4?bJ Head Show determination of Surface or Subsurface See attached sheets fo calculations.
Show determination of type of 'a' to use See attached sheets fo calculations.
G( Yes Preparer (I OK Reviewer CJ
8) ISI-FE-1 Paraqraph) - 'Roundinq-off Method' was used
9) Code Flaw Dimensions t9 OK Reviewer ____
Is- = _V& " - = N/A-
= . a'= . "t It nominal = NIA tmeasured = 5.5
10) Flaw Type @ OK Reviewer 9 Subsurface Planar (UTIRT)
11) Flaw Characterization Figure (9 OK Reviewer IWA-3320-1
12) Flaw Characterization Fiqure Number 9-AC w I.
13) Was IWA-3300 Flaw Charactenzation followed? G Yes 0 No If no, why?
14) The correct Code Edition and Addenda was available and used. 03 Yes Preparer C ( OK Reviewer c
15) Preparod by and d 1w6 y and dab
-1~ a&
-4,en t-C2 ~P n 07-Z
k,-° The results are correct ane methodology used is in The rei assures that the results are correct and the accordance with applicable codes, standards. specifications and methodology used is in accordance with applicable codes, procedures. standards, specifications and procedures.
17 7 1.2I-ISI Flaw Disposition Worksheet WD Site/Unit: frn C1 P19 ; Procedure: tLS-S -rC- A - ~ OutageNo.: e2zR2c2t Summary No.: F L i;1 A Procedure Revision/FC: Report No.: i.OO2AA C) IC)
Workscope: S- S : Work Order No.: p i C ('J 9 , Page: of
1) Flaw Number - v tO ' 3)1SI Interval 3 t OK Reviewer DAW
2) Item Number A m isna. .A 4) Code Edition & Addenda 1 9 e,' IcJMc Acd.eid-.¢ ) OK Reviewer <a,
5) Acceptance Standard - JiZ % -7AS (a OK Reviewer 044-'
'j LAuj I S Sgk6St-R >cC Q OK Reviewer
6) Calculations (See Below)
I =. ,0 I 8 ,
'ot-- .lo" el S- . } C)" StO - (. Y 'I9 t 4/Al 1 70 7 - c-_G Ah/00
'vI _ Z. 0/I '=, 22 ,
I,-"/, _. -y'r
e Ci .I 1

5 a/ rJ A. A cj, 6 Ve Z' 2-- I Z. -L -- Z- ( 3 di8 I/ 3.3Y) ` >X -3 ? Y
. _0 x 20 C'a S" w c3-/ Bus\ =~ x Ax
7) Results 0 OK Reviewer A anl = Code allowable a/t% = 3 Calculated alt% = 3 . Laminar flaw surface area: (0.75 I w) = A. Il
8) Table used for analysis 0 OK Reviewer :g : W Q3> - °a I
9) Was linear interpolation used? (i) Yes 0 No If no, why?
10) Was IWA-3200 Significant Digits For Limiting Values followed? (; Yes 0 No If no, why?
11) The correct Code Edition and Addenda was available and used. Yes Preparer , 0 OK Reviewer ,
12) Statement of acceptability or rejectability with basis. 0 OK Reviewer , OE 0 Accept 0 Reject 0 (a/t) Code allowable>(alt) calculated EXAC A (i'v;O' ti ,
'f 6y OEMflaw evaluation handbook (see attached analysis) e / 4 G -a 1cA a b Z 1 W (a/t) Code allowable < (a/t) calculated
13) Prep red by any d5ate 14) Engineering review by and date
______ ..,/ -I -0Z The results are correct and the methodology used is in accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used is in accordance with applicable codes.
standards, specifications and procedures.
15) App ved by and date
-~~.x 1),
This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity that the results and the methodology are correct and in accordance with applicable codes, standards, specifications and procedures.
SC.-e
'A 0 2-(
1c/oL.'71/4I Ic8 ,,"C,-~is:
, 12I 5: I, .; -,
CL,
-- . Lo '
Surtaco/Embodded
1. 9 II.#. , 20, i- 1. 1,1 Flaw Demarkation Une C. 0.13 p ~.,
J!liiiililII i} FLAWS WITH at
....^W i*... i^ Embedded Fl 0.12 0.11 10 20,ta30 yrs.
0.1 NOTO l i X _l e ALLOWABLE 0.09 4-:
~ 0.08 LL 0.07 0
0.06
- 0.05 0.04 I,
~~. Distance fromSurace.61t q2-0 Y6/ ; 0.03 Z423~,o 0.02 .A ... .... LON AS 0.2 0.01 SL ~ ~ ~ ~ ~ O ThpIS, SID SGteobe OFc 0I Head Junction for Figure A-2. R4 Flaw Evaluation Chart forb . Tubesheet-Chanfel Prairie Island Units 1 and 2 Surface Flaw X Longitudinal Flaw xx Inside Surface. Circumferential Flaw
( Outside Surface X Embedded Flaw X 1299w.wpf:lb/011995 129 w~wpf:lb/?01199 29-7 - 5A7 z 1 ' O /~/ 4 -
z - /Y-Co Z.
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented in plane normal to pressure retaining surface ASME SECT Xl 1989 WI NO ADDENDA SPC INITIAL TO VERIFY ISI Report# 2002U010 Evaluation Performed By: S. Clay Date:02112102 Flaw# 60°#4 Reviewed By: J.Wren 9 ). Date: 2-e/4-Cz Lenath Length of the flaw "Cis determined by finding the difference between LI and L2 for perpendicular scans, WI and W2 for parallel scans.
L and W values are from page 5 of the UT report.
I= 3.6 (12) - 4.5 (LI) = - 0.9" inches.
Thickness Thickness of the component at the location of the flaw, usingef or nom wall (circle one).
This value is from page 1 of the UT report.
"t" = 5.50 inches Calibration The measured angle in the calibration block was 63° degrees Calculations usina metal path From page 5 of the UT report, Scan # 3 The flaw exhibited 20% DAC at 4.500 and 5.410 inches MP. Max amplitude is 5.080 inches MP with the transducer exit point at 4.0 inches from the centerlitne of the weld and 136.50 inches from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
) Determine correction factor due to curvature.
Radius = .67.94" (R). Surface distance to max amp point = 4.526" ( C). C/R = .0_67 TAN.
INV TAN = 3.833 . COS = .998 . ( R I COS ) - R = .136 correction factor.
1) Determine the upper depth of the flaw from the exam surface.
4.500" (metal path at 20% upper)
COS of the measured angle 630 = 2.043" - .136 correction factor = 1.907 inches depth.
2) Determine the lower depth of the flaw from the exam surface.
5.410" (metal path at 20% lower)
COS of the measured angle 630 = 2.456" - .136" correction factor = 2.320 inches depth.
3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
5.080" (metal path at maximum amplitude point)
COS of the measured angle 630 = 2.306"
- .136" correction factor = 2.170 inches depth.
4) Determine the distance from 0" reference to the maximum amplitude point of2 the flaw.
5.080" (metal path at maximum amplitude point) squared = 25.806 (a ) 2 2.306" (depth at maximum amplitude point, before correction) squared = 5.317 (b )
a2 - b2 = 4.526 inches of surface distance to the flaw from the transducer exit point.
136.50 (Lmax) + or- 4.526" (surf dist) = 141.026 inches from 0" reference.
( + or - based on scan direction)
5) Determine S by picking the smaller of the following; S = 1.907" (result of 1) = distance between exam surface and the upper flaw tip
>> OR <<
S = 5.50 (part 't) - 2.320 (result of 2) = 3.180" distance between the side opposite exam surface and the lower flaw tip
6) Determine 2d in though wall thickness.
2.320" (from step 2)- 1.907" (from step 1) = .413 inches.
. _- 2 L.
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface Determination of surface or subsurface 0.4d = (2d / 2)
0.4 = .083" Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = N/A inches.
If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a /2 = .207 inches.
I = .90" (for a/t > 0.5, C= 2a) t = 5.5" (part thickness) a= .20" (surf or circle one) S = 1.9"
God a/ . .!2j;1 W ISI Flaw Sizing Worksheet NMC P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 Site/Unit:
Procedure Revision/FC: 9 1 - Report No.: 2002U010 Summary No: 502618 W-UnA-, MrerN - 0106946 Page: - of lAn
. r~VcrfnfO II VYUIf v.... *..-
1)Flaw Number _P 5 6.00 3) ISI Interval 3rd Interval X OK Reviewer Cy w B2.40 4) Code Edition &Addenda 89 no addenda { OK Reviewer E
2) Item Number
5) Method UT
6) Flaw Sketch (See Below) f OK Reviewer I>)
Flaw View 210.98" 0.99" 1.1" = 1.0" CL ay75" 3.2" Tube Sheet 2.2" Head End View Side View O0 Tube Sheet 210.98" Weld CL - - - _-_- _ _-_--
7) Calculations sROKeReviewer Show determination of Surface or Subsurface I Head See attached sheets fo calculations. ToD View Show determination of tvpe of 'a' to use See attached sheets fo calculations.
' OK Reviewer-
8) ISI-FE-1 ParaqraohlZ- 'Roundinq-off Method' was used () Yes Preparer 9)Code Flaw Dimensions ;&OK Reviewer NIA It measured = 5.5 "s"= 1 0 w v= NIA
= I aI = ,LI.
"aw "t nominal =
10) Flaw Type i OK Reviewer H e Subsurface Planar (UTIRT) 11)FlawCharactenzationFigure @9OKReviewer IWA-3320-1
12) Flaw Characterization Fiqure Number FLAW
1
13) Was IWA-3300 Flaw Charactenzation followed? ( Yes 0 No If no, why?
(3)Yes Preparer Z_-,l XOK Reviewer
14) The correct Code Editon and Addenda was available and used.
and da >
15) Prep A4nf u d by and dat~ s The results are correct and the methodology used is in 16
_-_2-ba_
The review assures that the results are correct and the Gl 2I
-_-Z methodology used is in accordance with applicable codes, accordance with applicable codes, standards, specifications and standards. specifications and procedures.
procedures.
ISI Flaw Disposition Worksheet M-R>
SiteAUnit: /V62Ce ' P>2 Procedure: Za5g-4A7- 3 )utage No.: 13'F2AVXWOD2-G /6 Procedure Revision/FC: -' I Report No.: . 1-0/6 Summary No.: 5it's; Workscope: -;52 Work Order No.: a/Os 2'/ Page: of
1) Flaw Number _ 60 _ _ 3) ISI Interval ;3~/ eOOK Reviewer __y
2) Item Number ,S-,, &? s/o 4) Code Edition &Addenda 7g-3>11. A/e4SA
/fb9AA OK Reviewer A?
5) Acceptance Standard 0' OK Reviewer
6) Calculations (See Below) 0'OK Reviewer
- , 4/" A Z = 5-. 5" ea/ toe Z- ,+ -. 7,3 %
P. A 0 .. - '. 0 eaz ~ 5 -1 a '/0
, /VO _, a C'.S/
/ D
@) ,Bv-Q
- 0 L,)-7 1' L4ee e
d ~ -/ e7"S4-t
'L~ 4/-7 3:
7) Results ( OK Reviewer 42 Code allowable a/t% = :j ?t Calculated a/t% = 7 i Laminar flaw surface area: (0.75 l w)= A'.
all = . D
8) Table used for analysis E OK Reviewer Azii§ --83 5716-
9) Was linear interpolation used? 0 Yes No ll If no, why?
@ Yes 0 No If no, why?
10) Was IWA-3200 Significant Digits For Limiting Values followed?
11) The correct Code Edition and Addenda was available and used. N Yes Preparer 0V54X Q OK Reviewer ,5^
12) Statement of acceptability or rejectability with basis. QD OK Reviewer o 0 Accept 0 Reject o (a/t) Code allowable> (a/t) calculated r w 5 z4-e-0 l OEM flaw evaluation handbook (see attached analysis) is/it I - -5 .
(a/t) Code allowable < (a/t) calculated 13Prepared Engineering review by and date The results are correct and the methodology used is in accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used is in accordance with applicable codes, standards, specifications and procedures.
15) Aftroved by addt that the results and the This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity specifications and procedures.
methodology are correct and in accordance with applicable codes, standards,
0c4-/ 4?;?F11o y
A'- 5-v24 A4 493- J; -La A,)C-'. l7.e1
/' 2o2-z 4tboie6 ea V .- >;- Surface/Embedded Flaw Demarkatlon 5 =/ / Une 0.13 i i i iIF Embedded FIA -FLAWS W'ITH 0.
ABOVE THIS UNE ARE 0.12 NOT ALLOWABLE 0.11
. . . . .. .. . . . . 10, 20, 30 yrs.
0.1 0.09 4.-~
- 0.08 7/ C7 6^7 3) 3:
urfmm ...... ....
LL 0.07 Flaws In this Region Mug Considered
> 0.06 Surface 3.t H4 Flava
, ,~ 0.05
.: /,C - nn ALL EMBEDDED FLAWS (ON THIS SIDE OF 0.03 DEMARKATION UNE)
ARE ACCEPTABLE PER C>r I- C CRrTERIAOFPB 360O
=/ .d 0.02 As LONG AS 2aU0.25
-o:7 6 0.01 -OYI-0 0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 0.2 0.225 0.25 /5 / " 11 4,-
Distance from Surface (6/t)
C , eCI<+ e I liz> 4-. 41 ,f, 5 ;II
- - ~, ,.~* .-. -*-------- , --
/t Figure A-2.4 Flaw Evaluation Chart for the Tubesheet-Channel Head Junction for Prairie Island Units I and 2 x Inside Sui rface Surface Flaw X Longitudinal Flaw -
x Outside Siirface X Embedded Flaw X Circumferential Flaw 1>
1299w.wpf: lb/011995 A2-7
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface ASME SECT Xi 1989 W/ NO ADDENDA SPC INITIAL TO VERIFY ISI Report# 2002U010 Evaluation Performed By: S. Clay Date:02112/02 Flaw# 600#5 Reviewed By: J. Wren ' Date:.ZiL*2 Lenath Length of the flaw Tr is determined by finding the difference between LI and L2 for perpendicular scans, W1 and W2 for parallel scans.
L and W values are from page 5 of the UT report.
1= -2.2 (12) - 3.2 (L1) = - 1.0" inches.
Thickness Thickness of the component at the location of the flaw, using ir nom wall (circle one).
This value is from page I of the UT report.
"t" = 5.50 inches Calibration The measured angle in the calibration block was 630 degrees Calculations using metal path From page 5 of the UT report, Scan # 4 The flaw exhibited 20% DAC at 2.330 and 3.990 inches MP. Max amplitude is 2.830 inches MP with the transducer exit point at 2.4 inches from the centerline of the weld and 213.50 inches from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
) Determine correction factor due to curvature.
Radius = 67.94" (R). Surface distance to max amp point = 2.522" ( C). C/R = .037 TAN.
INV TAN = 2.119 .COS= .999 .(RCOS)-R= .068 correction factor.
1) Determine the upper depth of the flaw from the exam surface.
2.330" (metal path at 20% upper) *COS of the measured angle 63° = 1.058" - .068 correction factor = 0.990 inches depth.
2) Determine the lower depth of the flaw from the exam surface.
3.990" (metal path at 20% lower)
COS of the measured angle 630 = 1.811" - .068" correction factor = 1.743 inches depth.
3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
2.830" (metal path at maximum amplitude point)
COS of the measured angle 63° = 1.285"
- .068" correction factor = 1.217 Inches depth.
4) Determine the distance from 0" reference to the maximum amplitude point of the flaw.
2 2.830" (metal path at maximum amplitude point) squared = 8.009 (a )
1.285" (depth at maximum amplitude point, before correction) squared = 1.651 (b2 )
a2 - b2 = 2.522 inches of surface distance to the flaw from the transducer exit point.
213.50 (Lmax) + or - 2.522" (surf dist) = 210.978 inches from 0" reference.
( + or - based on scan direction)
5) Determine S by picking the smaller of the following; S = 0.990" (result of 1) = distance between exam surface and the upper flaw tip
>> OR <
S = 5.50 (part t'1)- 1.743 (result of 2) = 3.757" distance between the side opposite exam surface and the lower flaw tip
6) Determine 2d in though wall thickness.
1.743" (from step 2) - 0.990" (from step 1) = .753 inches.
BY )21
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented Inplane normal to pressure retaining surface Determination of surface or subsurface 0.4d=(2d/2)O0.4= .151" Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = NIA inches.
If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a / 2 = .377 inches.
I = 1.0" (for alt> 0.5,1 = 2a) t = 5.5" (part thickness) a= .40" (surf o x circle one) S = 1.0"
'a1 ISI Flaw Sizing Worksheet WD NMC I P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 SitelUnit:
502618 Procedure Revision/FC: 9 1 -_ Report No.: 2002U010 Summary No.:
MWn~rknna- mSl Work Order No.: 0106946 Page: of 2.4 0" . 3) ISI Interval 3rd Interval X OK Reviewer 2O
1) Flaw Number 4
2) Item Number B2.40 4) Code Edition & Addenda 89 no addenda F OK Reviewer 96 .
5) Method UT
6) Flaw Sketch (See Below) P OK Reviewer Flaw View 304.40" 1.67" .IL,= 0.8" CL
.69" lImS 2.9" Tube Sheet 2.1" Head End View Side View D' Tube Sheet 304.40" Weld CL ------- ._------------------,_--_-_-_, _,_,_-_-_-_-_-_-_-_-_-_-
7) Calculations (7 OK Reviewer 9a0 I Head Show determination of Surface or Subsurface See attached sheets fo calculations. Top View Show determination of type of 'a' to use See attached sheets fo calculations.
8) 1SI-FE-1 Paraqraph i- 'Roundinq-off Method' was used ( Yes Preparer s { OK Reviewer !
9) Code Flaw Dimensions 9 OK Reviewer < t 5.5 ls = ID"( w = NIA 1-= ) . Cad= I3t nominal" = NIA Itrneasured =
10) Flaw Type 3 OK Reviewer Subsurface Plana( /R-n
11) Flaw Charactenzation Fiqure i OK Reviewer IWA-3320-1
12) Flaw Characterization Ficure Number QA) A..
13) Was IWA-3300 Flaw Characterization followed? (3 Yes 0 No If no. why?
(i Yes Preparer 'OK Reviewer'*
14) The correct Code Edition and Addenda was available and used. <
and ,_ .- -
15) Prepared by and d at1 I
I,-
The review assures that the results are correct and the The results are correct and the methodology used is in methodology used is in accordance with applicable codes, accordance with applicable codes, standards, specifications and standards, specifications and procedures.
procedures.
Ial Ad ISI Flaw Disposition Worksheet Site/Unit: Alkl; I P 2. Procedure: ;r;Z7-6e 7T- 3 _ Outage No.: <2/ Z>) 2-Summary No.: Procedure Revision/FC: 9' Report No.:,,2,~ 2.U6,,6 Workscope: .:7:52- Work Order No.: 6/aG 9y2G Page: of
1) Flaw Number Go o 3) ISI Interval _ _ _/_ 0 OK Reviewer
2) Item Number ,R-13 B2-. VO 4) Code Edition & Addenda ________________ o OK Reviewer _
o OK Reviewer ___
VIS _,, 5) Acceptance Standard Z46-Y-3'> -
-' =, g- )5. "6) Calculations (See Below) o OK Reviewer a= '35*- 1'
/704 Y1 - '-' -,AAlJ >6 "o&'To ")&
x 5,:
.5- . ..
I4/v Z t,- - G Z 'Z el-z %Z (P. 4:5
'. 7-6. Y ( , -Vq - -qo-'L t;-. y = , ? e. 0q) 4 5.16' 4/ _
t ;;-- -1110 .&Y (pRqYl
7) Results 0 OK Reviewer J Calculated alt% = 1.34 Laminar flaw surface area: (0.75 l w) = ,4-a/l = A/V'Y Code allowable a/t% = /-
8) Table used for analysis A OK Reviewer . 4 L- as20L- 3,'1 -y
9) Was linear interpolation used? e Yes 0 No If no, why?
10) Was IWA-3200 Significant Digits For Umiting Values followed? @ Yes 0 No If no, why?
86Yes Preparer 0 < OK Reviewer gl/
11) The correct Code Edition and Addenda was available and used.
12) Statement of acceptability or rejectability with basis. (D OK Reviewer A1. ' Accept 0 Reject 0 (a/t) Code allowable > (alt) calculated o OEM flaw evaluation handbook (see attached analysis)
O (alt) Code allowable < (alt) calculated
13) Prepared b and date 14) Engineering review by and date The results are correct and the methodology used is in accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used is in accordance with applicable codes, standards, specifications and procedures.
15) A4roved by and bale Cgh4UIA_/, --- __
the This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity that the results and methodology are correct and In accordance with applicable codes, standards, specifications and procedures.
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface ASME SECT Xl 1989 W/ NO ADDENDA SPC INITIAL TO VERIFY ISI Report# 2002U010 Evaluation Performed By: S. Cla Date:02/14102 Flaw# 60°#6 Reviewed By: J. Wren 'i--f Date: d-I:Z-Lenath Length of the flaw "r is determined by finding the difference between LI and L2 for perpendicular scans, Wi and W2 for parallel scans.
L and W values are from page 5 of the UT report.
t= -2.1 (L2) - 2.9 (L1) = - 0.8" inches.
Thickness Thickness of the component at the location of the flaw, using &r nom wall (circle one).
This value is from page 1 of the UT report.
"t" = 5.50 inches Calibration The measured angle in the calibration block was 630 degrees Calculations usina metal Path From page 5 of the UT report, Scan # 4 The flaw exhibited 20% DAC at 3.990 and 5.500 inches MP. Max amplitude is 4.490 inches MP with the transducer exit point at 2.3 inches from the centerline of the weld and 308.40 inches from the 0" reference. (Use of 20% DAC vs. 60% max amp for indications > 100% DAC is conservative.)
') Determine correction factor due to curvature.
Radius = 67.94" (R). Surface distance to max amp point = 4.001" (C). CIR =059 TAN.
INV TAN = 3.377 COS = .998 . ( R/ COS ) - R = .136 correction factor.
1) Determine the upper depth of the flaw from the exam surface.
3.990" (metal path at 20% upper)
COS of the measured angle 630 = 1.811" - .136 correction factor = 1.675 inches depth.
2) Determine the lower depth of the flaw from the exam surface.
5.500" (metal path at 20% lower)
COS of the measured angle 630 = 2.497" - .136" correction factor = 2.361 inches depth.
3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
4.490" (metal path at maximum amplitude point)' COS of the measured angle 630 = 2.038"
- .136" correction factor = 1.902 inches depth.
4) Determine the distance from 0" reference to the maximum amplitude point of the flaw.
2 4.490" (metal path at maximum amplitude point) squared = 20.160 (a ) 2 2.038" (depth at maximum amplitude point, before correction) squared = 4.153 (b )
2 va - b =
2 4.001 Inches of surface distance to the flaw from the transducer exit point.
308.40 (Lmax) + or - 4.001" (surf dist) = 304.399 inches from 0" reference.
( + or - based on scan direction)
5) Determine S by picking the smaller of the following; S = 1.675" (result of 1) = distance between exam surface and the upper flaw tip
>;OR <<
S = 5.50 (part "t") - 2.361 (result of 2) 3.139" distance between the side opposite exam surface and the lower flaw tip
6) Determine 2d in though wall thickness.
2.361" (from step 2)- 1.675" (from step 1) .686 inches.
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface Determination of surface or subsurface 0.4d = (2d /2)
0.4 = .137" Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = NIA inches.
If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a /2 = .343 inches.
I = 0.8" (for a/A > 0.5 = 2a) t= 5.5" (part thickness) a= .35" (surf or circle one) S= 1.6" Aq 121
I ;21L ISI Flaw Sizing Worksheet QD SitelUnit NMC I P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 Summary No.: 502618 Procedure Revision/FC: 9 / - _ Report No.: 2002U010 Wnrkqc~ne:
wsww rssMw [SI Work Order No.: 0106946 Page: of
<n0(Aj 1)Flaw Number SO' 3) ISI Interval 3rd Interval ;f OK Reviewer HZ
2) Item Number B2.40 4) Code Edition & Addenda 89 no addenda P OK Reviewer Zl
UT 17'
5) Method
6) Flaw Sketch (See Below) (OK Reviewer Ei2LJ L.-,
Flaw View 332.67" 2.02" ""= 0.91 I 3.2"
.48" Tube Sheet Head End View Side View 0o Tube Sheet 332.67" Weld CL _--- _- ---------------------- _ ------------------------------- _-_-
7) Calculations 9@ OK Reviewer -v-J I Head Show determinabon of Surface or Subsurface See attached sheets fo calculations. Top View Show determination of type of 'a' to use See attached sheets fo calculations.
0 - "Roundinq-off Method' was used G Yes Preparer & OK Reviewer C2t
8) 1SI-FE-1 Paraqraph
9) Code Flaw Dimensions X OK Reviewer C 5 T= -"a"= -"t nominal = NIA ttmeasured = 5.5 -"s = 2.0 " W= N/A
10) Flaw Type F OK Reviewer - Subsurface Planar
11) Flaw Characterization Fiqure (/ OK Reviewer tWA-3320-1
12) Flaw Characterization Fiqure Number 'CLAWJ i .1
13) Was IWA-3300 Flaw Characterization followed? (3 Yes 0 No If no. why?
14) The correct Code Edition and Addenda was available and used. (3 Yes Preparer _ VOK RieviewerW--L&
15) Prepared by and date t eiy nd izte, l U lc
',Mni ? , l-k4iLI "_2_
The results are correct andte-methodology used is in The regew assures that the results are correct and the accordance with applicable codes, standards, specifications and methodology used is in accordance with applicable codes.
procedures. standards, specifications and procedures.
l 12 Ni"9 ISI Flaw Disposition Worksheet Site/Unit: y(C I Pry A\j . Procedure: I SE - a I-- 3 Outage No.: r0i: -L 4? Zlo( Z Summary No.: Z c ,) (, 1,.9 Procedure Revision/FC: 9 / Report No.: -, OV 0o Workscope: 1.Z.5 r Work Order No.: O/ 0p 7AY6, Page: of
1) Flaw Number 6 OC vi 7 3) ISI Interval (3-OK Reviewer __,__ -
2)ltemNumber (6- d;2. C/o 4) Code Edition & Addenda WOK Reviewer 4l14 FLA ., Sz~b5;,ac 5) Acceptance Standard aLWu13 - 0Si ( OK Reviewer ______
6) Calculations (See Below) Q OK Reviewer e-.2: c, itId g 5- S "I A~ -= , x50 S -- ) . 0 1-112.9 I s-i
.1t , 2-S- t
= V- Y 7v 1007e=--A-C7 A
'-/5 0*
= 011661"i s.1 i . i- I oeg-f K ,, Te LC xr E3 S3/C - I C) ;D9 3 0) QG'z°;T)4Y~ Y- X8G C) el y - 04 ~s c( y c 9. -i y ,' _4 ey
3G y
y -X
7) Results ?OK Reviewer a/l = ,A) Code allowable a/t% = 4,/6 X Calculated a/t% = .C70 Laminar L flaw surface area: (0.75 I w) =
8) Table used for analysis 0 OK Reviewer gra
-r- - 3 to - /
9) Was linear interpolation used? A Yes 0 No If no. why?
10) Was IWA-3200 Significant Digits For Limiting Values followed? @!Yes 0 No If no, why?
11) The correct Code Edition and Addenda was available and used. a)Yes Preparer jtar{ Q OK Reviewer A'74
12) Statement of acceptability or rejectability with basis. 0 OK Reviewer _ Accept O Reject AeIk 166, 0 (a/t)Codeallowable>(alt) calculated /SLA .qcC-cj+r bIe. bit XCAP OEM flaw evaluation handbook (see attached analysis) , S ,q ,2
( (aft) Code allowable < (a/t) calculated t A 2.
13) Pre red by agd date 14) Engineering review by and date The results are correct and the methodology used is in accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used is in accordance with applicable codes, standards, specifications and procedures.
15 ) roved by and at This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity that the results and the methodology are correct and in accordance with applicable codes, standards, specifications and procedures.
4 rz 2 9 F'.;?0C-C)
S (-, eV-% ry't -el U 5-(-) .2 (v I 00 is SU..6SIUAerALC_
Cl--) 0 e of C) (. 9 q(.
9', 2
-- _I F,IC_ _'z -A C,01 c '-"- 7 y -'=0 C, 6 -;; S_. 5- ,
1//
C"'; : ; 5 5 _). L) #01 Surface/Embedded S, '= ': A.-C' =-,-). 0 I 14 "_ )Y- Flaw DemarkatIon Une 0.13 Embodded Fla FLAWS WITH alt ABOVE THIS UNE ARE 0.12 NOT ALLOWABLE 0.11
-10, 20, 30yrs.
0.1 0.09 1 0.08 LL 0.07 0 Reglo . ..... .
Conol
- 0.06 Surfaco Fla"
, 4s)
- 0.05 ('YI/
co 0.04
& 'I ALL EMBEDDED FLAWS (ON THIS SIDE OF 0.03 DEMARKATION UNE)
ARE ACCEPTABLE PER
___ t0°-~ 0.02 CRITERIA OF IWB 3800 AS LONG AS 2afsO.25 0.01 o7 (..s)
!5=
jg 0
0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 0.2 0.225 0.25 nictnnern frnm qi rftnnR (AIA
i. rwi, dO0 0 d 7 's
- w 9 b \/
vC,,5Se , qI ?0 4r2 --7
,-//(,
A ('
5' .5 Figure A-2.4 Flaw Evaluation Chart for the Tubesheet-Channel Head Junction for Prairie Island Units 1 and 2 X Inside Surface Surface Flaw X Longitudinal Flaw X Outside Surface X Embedded Flaw X Circumferential Flaw A-A2-7 ~2 1299w.wpf:lb/011995
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented in plane normal to pressure retaining surface ASME SECT Xl 1989 WI NO ADDENDA SPC INITIAL TO VERIFY ISI Report # 2002U010 Evaluation Performed By Ia Date:02/14/02 Flaw# 600#7 Reviewed By: J. Wreh4l Date: 7-'fZ.
Lencith Length of the flaw "Cis determined by finding the difference between Li and L2 for perpendicular scans, WI and W2 for parallel scans.
L and W values are from page 5 of the UT report.
1= -2.3 (12) - 3.2 (LI) = - 0.9" inches.
Thickness Thickness of the component at the location of the flaw, using UT or nom wall (circle one).
This value is from page 1 of the UT report.
It"= 5.50 inches Calibration The measured angle in the calibration block was 630 degrees Calculations using metal path From page 5 of the UT report, Scan # 3 The flaw exhibited 20% DAC at 4.740 and 5.800 inches MP. Max amplitude is 5.240 inches MP with the transducer exit point at 2.5 inches from the centerline of the weld and 328.00 inches from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
) Determine correction factor due to curvature.
Radius = 67.94" (R). Surface distance to max amp point = 4.669" ( C). CIR = .069 TAN.
INV TAN = 3.947 . COS = .998 . ( R /COS ) - R = .136 correction factor.
1) Determine the upper depth of the flaw from the exam surface.
4.740" (metal path at 20% upper)
COS of the measured angle 630 = 2.152" - .136 correction factor = 2.016 inches depth.
2) Determine the lower depth of the flaw from the exam surface.
5.800" (metal path at 20% lower)
COS of the measured angle 630 = 2.633" - .136" correction factor = 2.497 inches depth.
3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
5.240" (metal path at maximum amplitude point)
COS of the measured angle 630 = 2.379"
- .136" correction factor = 2.243 inches depth.
4) Determine the distance from 0" reference to the maximum amplitude point of the flaw.
2 5.240" (metal path at maximum amplitude point) squared = 27.458 (a )
2 2.379" (depth at maximum amplitude point, before correction) squared = 5.660 (b )
2 2 va - b = 4.669 inches of surface distance to the flaw from the transducer exit point.
328.00 (Lmax) + or - 4.827" (surf dist) = 332.669 inches from 0" reference.
( + or - based on scan direction)
5) Determine S by picking the smaller of the following; S = 2.016" (result of 1) = distance between exam surface and the upper flaw tip
>> OR cc S = 5.50 (part 't") - 2.497 (result of 2) = 3.003" distance between the side opposite exam surface and the lower flaw tip
6) Determine 2d in though wall thickness.
2.497 (fromstep2)- 2.016" (fromstep1)= .481 inches. l I r '-)1)(
I, tI. . tS - -
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface Determination of surface or subsurface 0.4d = (2d 12) 0.4 = .096" Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = NIA inches If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a /2 = .241 inches.
I = 0.9" (for a/ > 0.5, 1 = 2a) t= 5.5" (part thickness) a = .25" (surf oss circle one) S= 2.0"
! 6. , ! l;,2 QD- ISI Flaw Sizing Worksheet Site/Unit: NMC I P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 Summary No.: 502618 Procedure Revision/FC: 9 / - Report No.: 2002U0l0 MI. Wnrk Oirdpr Nno: -
0106946 Page: _ of vvulm-Pu. -
1) Flaw Number *W &0 3) ISI Interval 3rd Interval `OK Reviewer C119 L^j
2) Item Number B2.40 4) Code Edition & Addenda 89 no addenda V OK Reviewer
5) Method UT
6) Flaw Sketch (See Below) *OK Reviewer 9611v-
"M.-
Flaw View 350.41" I "L"' = 0.4" CL
_________________________________ I.
Tube Sheet I; 2.2" Head UV 1.06" 1.69"V 1.8" End View Side View
,0 C Tube Sheet 350.41" Weld CL---- I----------------------n_-_._._.----------------------
7) Calculations 6 OK Reviewer <C~
Head Show determination of Surface or Subsurface See attached sheets fo calculations. Top View Show determination of type of 'a' to use See attached sheets fo calculations.
A OK Reviewer <(or
8) ISI-FE-1 Paraqraph 7- 'Roundinq-off Method' was used ( Yes Preparer
9) Code Flaw Dimensions %1OK Reviewer J.L a"= , -at nominal, = NIA 'tmeasured" = 5.5 %!"= , 7. wo = NIA
10) Flaw Type OK Reviewer 9G70 Subsurface Planar&RT)
11) Flaw Charactenzation Fiqure (; OK Reviewer [WA-3320-1
12) Flaw Characterization Fiqure Number rlAWJ v
13) Was IWA-3300 Flaw Characterization followed? (3 Yes 0 No If no. why?
14) The correct Code Edition and Addenda was available and used. i Yes Preparer Reviewer Z"OK
15) Prepared by and date V _ and d__ \
--PA >C~ 2-f 4 - t ,(j (L -ZS' 11 -6z 0 z-The results are correct andthe methodology used is in The Miew assures that the results are correct and the accordance with applicable codes, standards, specifications and methodology used is in accordance with applicable codes, procedures. standards, specifications and procedures.
ISI Flaw Disposition Worksheet NM>
f1f2-. Procedure: I -, - A -3 Outage No.: 19/2 ,ZFzooZ Site/Unit: GYP C'
'C / Report No.: 2c90 Z.t 0 IC SummaryNo.: 50gop l5 Procedure RevisionlFC:
.T S -Z Work Order No.: 0 / 067 9& Page: _ of Workscope:
1) Flaw Number G( 0 i- 3) ISI Interval 3.rV- C' (io OK Reviewer -
2) Item Number8~ B '-t 0 4) Code Edition & Addenda I 9 ?' S Vd/W'1- (i OK Reviewer HAS
)I e - 36T/ 0 OK Reviewer Cog
r. Li,,,oS.Ltje(-AtC 5)AcceptanceStandard OK Reviewer ,
a .V s S 6)Calculations (See Below) 41 1,7' o CVk _ . -- zI Cy, :
)
D~-s,1-,
I' fn1 ,- /0o5
_= 3. i .=/
I .'
,cAt
-Lo I - - 3S /° 0/7,: ) -71. (,Y - -/. " ""
)sL LALACo.')I
_ 9e / C/ 61 , 'A, rD s o3
7) Results 0 OK Reviewer a/l = . - Code allowable alt% = 7, C X Calculated alt% = /0. 0 Z Laminar flaw surface area: (0.75 l w)
8) Table used for analysis OK Reviewer A x 1 - 3 ;slo -
9) Was linear interpolation used? 0 Yes 0 No If no, why?
0 A) T tOL C
10) Was IWA-3200 Significant Digits For Limiting Values followed? O Yes 0 No If no, why?
Yes Preparer.l( J s OK Reviewer
11) The correct Code Edition and Addenda was available and used. I
12) Statement of acceptability or rejectability with basis. (*) OK Reviewer *
Accept 0 Reject 0 (alt) Code allowable > (aft) calculated FLAc AC '1 e6A Bu 0L6 Yx C ta
9) OEM flaw evaluation handbook (see attached analysis) 5 rC a -Z A 7.
0D (a/t) Code allowable < (alt) calculatedI
13) Pr pared by and date 14) Engineering review by and date Axn . - by -02 O7 S_7- V0 2L The results are correct and the methodology used is in accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used is in accordance with applicable codes, standards, specifications and procedures.
15) Apqroved by and dat that the results and the This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity methodology are correct and in accordance with applicable codes, standards, specifications and procedures.
() 'A"e- p C) - P-1: -2 P- F z C) C-) -2 Al- 50,2(, /SI IS Sue s 7)-~,
s tX 4yN rn 0, -- Fi LAW
, .1 N0- o I C)(,o9 q L a(C o g,-8 I I, a FL-A& jL, ef -. S, C, =
S-G- I '7. 5o= ZZ
,xI= I e Surface/Embodded Flaw Demarkatlon Une .q 4 7 ,, p I 0.13
... Ernb4kid
-FLAWS WITH af nflgumtlo
ABOVE THIS LINE ARE 0.12 NOT ALLOWABLE 0.11 10, 20, 30 yrs.
0.1 0.09 r 0.08 urface ......
L1- 0.07 Fla" In this 0 Region Must
= 0.06 Conal4srod Surface 0- 0.05 0.04 ALL EMBEDDED FLAWS (ON THIS SIDE OF 0.03 DEMARKATION UNE)
ARE ACCEPTABLE PER CRITERIA OF IW8 3800 0.02 AS LONG AS 2atSO.25 aI, IJ 0.01 t *s. )~
0 0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 0.2 0.225 0.25 Distance from Surface (61t) i- t(-Ie to-\%
2
0. Li55/:pt %°l e IX6 5eef& R-?-
Figure A-2.4 Flaw Evaluation Chart for the Tubesheet-Channel Head Junction for Prairie Island Units 1 and 2 X Inside Surface Surface Flaw X Longitudinal Flaw X Outside Surface X Embedded Flaw X Circumferential Flaw
&;4' '
1-1-~h7,re {, g L 1299w.wpf:lb/011995 A2-7
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented in plane normal to pressure retaining surface ASME SECT Xl 1989 Wi NO ADDENDA SPC INITIAL TO VERIFY ISI Report # 2002U010 Evaluation Performed By: S. Clay Date:02I14102 Flaw# 60°#8 Reviewed By: J.Wren Date:..LZ el. ?.-
Lenath Length of the flaw C is determined by finding the difference between L1 and L2 for perpendicular scans, W1 and W2 for parallel scans.
L and W values are from page 5 of the UT report.
I= -1.8 (12) - 2.2 (-L1) = - 0.4" inches.
Thickness Thickness of the component at the location of the flaw, using(qUr nom wall (circle one).
This value is from page 1 of the UT report.
"t" = 5.50 inches Calibration The measured angle in the calibration block was 630 degrees Calculations using metal path From page 5 of the UT report, Scan # 3 The flaw exhibited 20% DAC at 6.660 and 8.990 inches MP. Max amplitude is 7.080 inches MP with the transducer exit point at 2.0 inches from the centerline of the weld and 344.10 inches from the 0 reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
) Determine correction factor due to curvature.
Radius = 67.94" (R). Surface distance to max amp point = 6.308" ( C). CIR = ..0933 TAN.
INV TAN = 5.313 --- . COS = .996 . ( R / COS ) - R = .273 correction factor.
1) Determine the upper depth of the flaw from the exam surface.
6.660" (metal path at 20% upper)
COS of the measured angle 630 = 3.024" - .273 correction factor = 2.751 inches depth.
2) Determine the lower depth of the flaw from the exam surface.
8.990" (metal path at 20% lower)
COS of the measured angle 630 = 4.081" - .273" correction factor = 3.808 inches depth.
3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
7.080" (metal path at maximum amplitude point) " COS of the measured angle 630 = 3.214"
- .273" correction factor = 2.941 inches depth.
4) Determine the distance from 0 reference to the maximum amplitude point of2 the flaw.
7.080" (metal path at maximum amplitude point) squared = 50.126 (a ) 2 3.214" (depth at maximum amplitude point, before correction) squared = 10.330 (b )
a2 - b2 = 6.308 inches of surface distance to the flaw from the transducer exit point.
344.10 (Lmax) + or- 6.308" (surf dist) = 350.408 inches from 0" reference.
( + or - based on scan direction)
5) Determine S by picking the smaller of the following; S = 2.751 " (result of 1) = distance between exam surface and the upper flaw tip
>> OR <<
S = 5.50 (part t') - 3.808 (result of 2) = 1.692" distance between the side opposite exam surface and the lower flaw tip
6) Determine 2d in though wall thickness. toe 3.808" (from step 2) - 2.751 " (from step 1) = 1.057 inches. 7 IC
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface Determination of surface or subsurface 0.4d = (2d12) - 0.4 = .212" Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = NIA inches.
If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a /2 = .529 inches.
t = 1.1" (for a/1> 0.5, t = 2a) t= 5.5" (part thickness) a= .55" (surf or e circle one) S= 1.7"
,4C
)i1
r-yrF 10O i, Ija ISI Flaw Sizing Worksheet WD NMC I P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 SitemUnit:
502618 Procedure RevisionlFC: 9 , _ Report No.: 2002U010 Summnary No.:
1AI-4,H, No4 -f 0106946A PanAe of Workscope: UIi are l.;,... v_
__oq 0' 3) ISI Interval 3rd Interval ; OK Reviewer
1) Flaw Number 82.40 4) Code Edition & Addenda 89 no addenda OK Reviewer
2) Item Number
5) Method UT
6) Flaw Sketch (See Below) 10~K Reviewer -2k-Flaw View 365.20" I CL 3.1" Tube Sheet ! Head
.43" !
2.06" End View Side View O- Tube Sheet Weld CL ------- ----
364.5"
7) Calculations OK Reviewer a s Head Show determination of Surface or Subsurface See attached sheets fo calculations. Top View Show determination of type of 'a to use See attached sheets fo calculations.
X OK Reviewer
8) ISI-FE-I Paraqraph 7V- Roundinq-off Method' was used ( Yes Preparer
9) Code Flaw Dimensions ti OK Reviewer 5.5 .S. = . 0 )lv = N/A
'a'= 4a_= It nominal = NJA Itmeasured =
10) Flaw Type (P OK Reviewer - Subsurface Plana ~T)
11) Flaw Characterization Figure (6 OK Reviewer IWA-3320-1
12) Flaw Characterization Ficure Number F-,LAu J&
13) Was IWA-3300 Flaw Characterization followed? (3 Yes 0 No If no, why?
f-h UK eviewer
- a_. -Ct A..A - I
]~U
14) The correct Code Edition and Addenda was available and used. Yes Preparer il lo OK Reviewer evwc
15) Prepared by and dat SPeAn-:?. God0M H i - -M o methodology used is in The assures that the results are correct and the The results are correct an the applicable codes, standards, specifications and methodology used is in accordance with applicable codes, accordance with standards, specifications and procedures.
procedures.
PORC, Ml. o JR1 -
pi A'ISI Flaw Disposition Worksheet (REPOR2T1 -- --.-
) 1 / ° Procedure: Csr Em- , Outage No.: f' z ,e rZocZ Site/Unit:P.mc Summary No.: 50 @,/ Procedure Revision/FC: 9l ReportNo.: ZrO2.LA4C) i Workscope: _ _ __ _ Work Order No.: klo (49 q - Page: _ of _
1) Flaw Number G0 a
_ _ 9_ 3) ISI Interval 3, ct 0 OK Reviewer 3-B6 d6 .' Co 4) Code Edition &Addenda I9 g 1J, _Acddo, @)OK Reviewer
2) Item Number
5) Acceptance Standard -. ,,6 - 3.-co i OK Reviewer
. - C" fSSta 5 -lC
6) Calculations (See Below) 0 OK Reviewer i_- / Ad e -- 5-. Y "
Sac XCr),7, A, -; F,,;217, Y. / = .Y a, xr /CJ -) .
/>_old IS /. ,,
I/ e A i 7e
,-,v, '6 6
-- aa V
anS-/ - X c/Z ° ., l - /7
- OtAyll PeCAv
/7,4bA '5 ,uor ACC5PTA16L.t5 TeK6L* r Wt" a, 3 3570 - / COLJT / FJ FLAWq A/JtALYS/'5 P& R >,CAIVI/c/& (a rLAW L = L CAATI HV/-tJ ID 00 f
7) Results @ OK Reviewer Go=
an= 0 ,35 Codeallowable5alt% = / Calculated alt% = 6' a Laminar flaw surface area (0.75 l w).= /tA
8) Table used for analysis e OK Reviewer , s .
C Li AStU / I
9) Was linear interpolation used? 0 Yes () No If no, why?
OI TA 13LC
10) Was IWA-3200 Significant Digits For Umiting Values followed? 6 Yes 0 No If no. why?
6) Yes Preparer A @ OK Reviewer
11) The correct Code Edition and Addenda was available and used.
(W Accept 0 Reject
12) Statement of acceptability or rejectability with basis. W OK Reviewer g%-'
0 (aft) Code allowable > (alt) calculated F( a wcAeI/qiG(,
@ OEM flaw evaluation handbook (see attached analysis) ,) A Ž.
6 (aft) Code allowable < (aft) calculated eL A7
13) Prep red by and dat 14) Engineering review by an date The results are correct and the methodology used is In accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used is in accordance with applicable codes, standards, specifications and procedures.
15) Aproved by and date necessity that the results and the This approval assures that all involved with this flaw sizing and flaw disposition were aware of the and procedures.
methodology are correct and in accordance with applicable codes, standards, specifications
bcJo el -L A F 2- cYŽ-,?
SuenLar 'p'VIN r-z-/4coA ( S c6,gCAP-FACe6~
.'i. t.JC. JOA-A2L r&,0 AA 0 / ( If,'
r'. ' , i:I; -----
ri- w 66 01-'I '
Surface/Embedded Flaw Demarkalton Une ss S+ ~,- 2, ". cl-0.13 Embedded Flall - FLAWS WITH alt ABOVE THIS LINE ARE 0.12 NOT ALLOWABLE 0.11 10, 20, 30 yrs.
0.1 0.09 4- , vSt °'°8)
~ 0.08 L- 0.07 w-0 Region Must Considered 0.06 Surface V
t- 0.05 I
0.04 ALL EMBEDDED FLAWS (ON THIS SIDE OF 0.03 DEMARKATION LINE)
ARE ACCEPTABLE PER CRrrERIA OF IW9 3800
-q O-. 0.02 AS LONG AS 2aASO.2s
,C~S 0.01 2- (-DI 46 0
0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 0.2 0.225 0.25 .:: . / (a Distance from Surface (6/t)
Revsi I 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface ASME SECT XI 1989 WI NO ADDENDA SPC INITIAL TO VERIFY ISI Report # 2002U010 Evaluation Performed By: Sean Clay Date: 2114/02 Flaw# 600#9 Reviewed By: Jerry Wren _ Date: Z...
Lencth Length of the flaw r is determined by finding the difference between Li and L2 for perpendicular scans, W1 and W2 for parallel scans.
L and W values are from page 5 of the UT report.
l= 365.8" (L2) - 364.5" (L1) = 1.30 inches.
Thickness Thickness of the component at the location of the flaw, using@) or nom wall (circle one).
This value is from page 1 of the UT report.
t = 5.50 inches Calibration The measured angle in the calibration block was 63 degrees Calculations usina metal Path From page 5 of the UT report, Scan # 2 The flaw exhibited 20% DAC at 5.660 and 7.570 inches MP. Max amplitude is 6.740 inches MP with the transducer exit point at 2.90 inches (W) from the centerline of the weld and 365.20 inches (L) from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
1) Determine the upper depth of the flaw from the exam surface.
5.660 (metal path at 20% upper)
COS of the measured angle 630 = 2.570 inches depth.
2) Determine the tower depth of the flaw from the exam surface.
7.570 (metal path at 20% lower)
COS of the measured angle 630 = 3.437 inches depth.
3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
6.740 (metal path at maximum amplitude point)
COS of the measured angle 630 = 3.060 inches depth.
4) Determine the distance from the center line of the weld to the maximum amplitude point of the flaw.
2 6.740 (metal path at maximum amplitude point) squared = 45.428 (a )
2 3.060 (depth at maximum amplitude point) squared = 9.364 (b )
v a - b = 6.005 inches of surface distance to the flaw from the transducer exit point.
2 2 2.900 (Wmax) - 6.005 (surf dist) = - 3.105 inches to the centerline of the weld.
5) Determine S by picking the smaller of the following; S = 2.570 (result of 1) = distance between exam surface and the upper flaw tip
>> OR <<
S = 5.50 (part 't) - 3.437 (result of 2) = 2.063 distance between the side opposite exam surface and the lower flaw tip
6) Determine 2d in though wall thickness.
3.437 (from step 2) - 2.570 (from step 1)= .867 inches.
Determination of surface or subsurface 0.4d=(2d/2)*0.4= .173 Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = NIA inches.
If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a / 2 = .433 inches.
,t = 1.3 (for a/C > 0.5, C= 2a) t = 5.5 (part thickness) a= .45 (surf orb circle one) S = 2.0 .}3 1
- .10 'Ljr1-ISI Flaw Sizing Worksheet 19 NMC / P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 Site/Unit:
502618 Procedure Revision/FC: 9 l - Report No.: 2002U010 Summary No.:
IAI-,I nrdA- Kn - 10i6qAA Pnioe: of Workscope: izi vvvuNlrsu-..- -- - -. - -J
1) Flaw Number 4t:W 60° 3) ISI Interval 3rd Interval 9 OK Reviewer .
89 no addenda OK Reviewer (7W
2) Item Number B2.40 4) Code Edition & Addenda UT
5) Method UT
6) Flaw Sketch (See Below) 0 OK Reviewer Flaw View 360.61" I1.6 "L = 1.0" CL l.45' - 11.9" Tube Sheet .9 Head End View Side View 0O Tube Sheet Weld CL
7) Calculations i9 OK Reviewer =-
Show determination of Surface or Subsurface See attached sheets fo calculations. Top View Show determination of type of "a' to use See attached sheets fo calculations.
8) ISi-FE-1 Paragraph Z- 'Rounding-off Method' was used (3 Yes Preparer P OK Reviewer 2L d
9) Code Flaw Dimensions t9 OK Reviewer CZL Itmeasured = 5.5 .s- = I. - (a v = N/A r= 1 Ca"= .I.!5 "t nominal, = NIA
10) Flaw Type @ OK Reviewer . A; Subsurface Planar (UTIRT) 11)Flaw Characterization Figure ( OK Reviewer [WA-3320-1
12) Flaw Characterization Figure Number FLAWJ v L
13) Was IWA-3300 Flaw Characterization followed? G( Yes 0 No If no, why?
(3 Yes Preparer OK Reviewer 0I1. -
14) The correct Code Edition and Addenda was available and used.
15) Prepared by and dat .F- Ir4 p- j. LIyanddZ 2 -L~" . -o The review assures that the results are correct and the The results are correct and the methodology used is in methodology used is in accordance with applicable codes, accordance with applicable codes, standards, specifications and standards, specifications and procedures.
procedures.
.- 105- '-
ISI Flaw Disposition Worksheet NMC Site/Unit: i ex 1 Procedure: -S S5 - LA..T -z Outage No.:
- Carc I Ra Procedure RevisionlFC 3 I Report No.: Zoo2 L 6 1O cf Summary No.:
-f- 15 r of Workscope: WorkOrderNo.: 0CI Ot 9 toQ Page:
1)Flaw Number _ V__ __ _6 _ 3) ISI Interval Reviewer A3_eiOK
2) Item Number 3-i6r da v 4) Code Edition & Addenda l ' ' I\J,) A d,4 4
Q OK Reviewer evcl
5) Acceptance Standard R5C6e OK Reviewer A5.'
jCi 3L SfX rC.
6) Calculations (See Below) (3 OK Reviewerv CIt
,e ,O t-Ds5,
'4 X )/a 0 a5 IS S, I (J . Y/
C-'
--, X'oz Y; /14 3 g y 3 go SA TAet &wSC~t-
, 7 J-lcv n37 YS-- 3,~A> SS rcCCt-0E HOT 3 P3t - Pe GE Ace -r Co iSo-t tZJ 6 / 'zo. Lou sa S DB
7) Results Q OK Reviewer 0 5 all= Code allowable alto = 3 Calculated alt% = /S. Y ? Laminar flaw surface area: (0.75 } w)= AJA
8) Table used for analysis ( OK Reviewer ,;:. XHo w) - I
9) Was linear interpolation used? 0 Yes
No If no, why?
C),-a -ETr\ 3 L
10) Was IWA-3200 Significant Digits For Limiting Values followed? & Yes 0 No If no, why?
11) The correct Code Edition and Addenda was available and used. Q Yes Preparer &,l i OK Reviewer ,v4--'-
12) Statement of acceptability or rejectability with basis. G OK Reviewer O i ( Accept 0 Reject 0 (a/t) Code allowable > (alt) calculated 0 OEM flaw evaluation handbook (see attached analysis) Go AL,-, AC-C-OF( 5 LcAc - aPy A -7
@ (a/t) Code allowable < (a/t) calculated L (ZAC A 1'J I tC(.
13) Pregared by a date 2 14) Engineering review, by anddate The results are correct and the methodology used is in accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used is in accordance with applicable codes, standards, specifications and procedures.
15
) App7gved by and dtat and the This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity that the results methodology are correct and In accordance with applicable codes, standards, specifications and procedures.
C) V.A O)to Prz p- ,Zec)2L S (k rn CAC gr- IRL- AUj IS Aiz S L~k.-f7AC-.C I0104 wo0d OJ(a C 9 C,4I -
121 Ar / L.)
riZ-AW Cj Xl* 0
- 1,.0C)"j t-
) 'I.
Surface/Embedded Flaw Demarkatlon
': J. Fs fi Une 0.13 IE U
I; \
C^ *E 11111!1lqlCon~onw \ABOVE TIS UN 0.12 NOT ALLOWABL E 0.11 0.1 U ......... ....j'10, 20, 30 yr,S.
0.09 Flw Inlll thl 1 111
.......,,I l~l I ...... 1 ....... 11 IIis x 0.08 co 0.07 Li.
.4-0 Regi SM utstl ......................... . . . . . . . . . .
.i.iiiiii Con sidered . .1l.~l.llE~ l~llh 0.06 Su fa e ......... 11. .... .. :1~,l,,,,,
l~ :1 w- 0.05 . . . . . .. . .
. i . . . .. . .. .. . . .. . . . . .; . .1.i.
IIIIII.lllIIIllllllIII~i
.lllll
. . . . . . . . . .. . . . . II....~ IIII
.m IIIII. .I I
0.04
. .lllii . . .. . . . . . .. . .. . ALL EMBEDDED 1ll!1 FLAWS
.. ....... .... ... l .... lli~lii
.~lll~'llii
.ll (ON THISSIDE C)F iiliiii.
0.03 i ..........11 ......
..llglliiil m m DMARKATION UNE) g6fs" .l.ll.il.il. . l . . ., i.,,,,,, CR ITER IAOF ll~
LE PER
llIWPB l+liiilF li~3800 0.02 .... Mllliillllllllliuillii~iillllll
.... ........ ... ... AS LONG AS S0.25 C2,CoLi . illllllil;illllllll~lillll!III .l~
.....c 0.01 . . . .. . . . . . . . . . 'I 0
0 0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 0.2 0.225 0.25 =--0 O'
,, Distance from Surface (6/t)
//b ,° z q 3, 7L P,LO 1S Al C-c_ l- L-
- -I.
S _t 4-, a-1 (-J A 2- -7 Figure A-2.4 Flaw Evaluation Chart for the Tubesheet-Channel Head Junction for Prairie Island Units 1 and 2 X Inside Surface Surface Flaw X Longitudinal Flaw X Outside Surface X Embedded Flaw X Circumferential Flaw jt-' ,'IaelzC 1-z 1299w.wpf:lb/011995 A2-7 6- s ty
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface ASME SECT Xi 1989 WI NO ADDENDA SPC INITIAL TO VERIFY ISI Report# 2002U010 Evaluation Performed By: S. Clay Date:02/14102 Flaw# 600#10 Reviewed By: J. Wren Cal Date: 2-/-c)Z LenAth Length of the flaw "r is determined by finding the difference between Li and L2 for perpendicular scans, WI and W2 for parallel scans.
L and W values are from page 5 of the UT report.
1= -0.9 (L2) - 1.9 (L1) = - 1.0" inches.
Thickness Thickness of the component at the location of the flaw, using UT or nom wall (circle one).
This value is from page I of the UT report.
"t" = 5.50 inches Calibration The measured angle in the calibration block was 630 degrees Calculations using metal path From page 5 of the UT report, Scan # 4 The flaw exhibited 20% DAC at 3.830 and 4.830 inches MP. Max amplitude is 4.250 inches MP with the transducer exit point at 1.3 inches from the centerline of the weld and 364.40 inches from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
) Determine correction factor due to curvature.
Radius = 67.94" (R). Surface distance to max amp point = 3.787" ( C). C/R = .056 TAN.
INV TAN = 3.205 . COS = .998 . (R I COS )- R = ,136 correction factor.
1) Determine the upper depth of the flaw from the exam surface.
3.830" (metal path at 20% upper)
COS of the measured angle 63° = 1.739" - .136 correction factor = 1.603 inches depth.
2) Determine the lower depth of the flaw from the exam surface.
4.830" (metal path at 20% lower)' COS of the measured angle 63°. = 2.193" - .136" correction factor = 2.057 inches depth.
3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
4.250" (metal path at maximum amplitude point)
COS of the measured angle 630 = 1.929"
- .136" correction factor = 1.793 inches depth.
4) Determine the distance from O reference to the maximum amplitude point of the flaw.
2 4.250" (metal path at maximum amplitude point) squared = 18.062 (a )
1.929" (depth at maximum amplitude point, before correction) squared = 3.721 (b2 )
-4a2 -b 2 = 3.787 inches of surface distance to the flaw from the transducer exit point.
364.40 (Lmax) + or - 3.787" (surf dist) = 360.613 inches from 0" reference.
( + or - based on scan direction)
5) Determine S by picking the smaller of the following; S = 1.603" (result of 1) = distance between exam surface and the upper flaw tip
>> OR cc S = 5.50 (part St") - 2.057 (result of 2) = 3.443" distance between the side opposite exam surface and the lower flaw tip
6) Determine 2d in though wall thickness.
2.057" (from step 2) - 1.603" (from step 1) = .454 inches.
- 07 -12
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface Determination of surface or subsurface 0.4d=(2d/2) 0.4= .091" Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = NIA inches.
If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a /2 = .227 inches.
I= 1.0" (for a/L> a) t = 5.5" (part thickness) a= .25" (surf sircle one) S = 1.6" 108 - I Il
"D ISI Flaw Sizing Worksheet Site/Unit: NMC I P12 Procedure: ISI UT-3 Outage No.: P12RF2002 Summary No.: 502618 Procedure Revision/FC: 9 1 -- Report No.: 2002Uo0o Wnrrk-crnnp IS' Work Order No.: 0106946 Page: of
1) Flaw Number -*II aDO 3) ISI Interval 3rd Interval (i OK Reviewer <D
2) Item Number B2.40 4) Code Edition & Addenda 89 no addenda P OK Reviewer
5) Method UIT
6) Flaw Sketch (See Below) P OK Reviewer Flaw View 382.27" "L" = 0.6" CL 2.4" Tube Sheet Head 1.52" IV 36 1.8" End View Side View 0* Tube Sheet 382.27" Weld CL - -- -L-- -- --- -- -- --- -- --- -- -- --- -- -- - -- - -
7) Calculations Hi OK Reviewer-N Show determination of Surface or Subsurfac. Head See attached sheets fo calculations.
Top View Show determination of type of 'a' to use See attached sheets fo calculations.
8) ISI-FE-1 Paraqraph ;-'"Roundinq-off Method"was used (3 Yes Preparer 5 { OK Reviewer '--
9) Code Flaw Dimensions ,S OK Reviewer fflJ 1' = o IOa- = .2D" t nominal " = NIA It measured = 5.5 Is"= I tb 'w'= NIA
10) Flaw T ype ! OK Reviewer Subsurface Planarl)
11) Flaw Characterization Fiqure (' OK Reviewer 7 IWA-3320-i
12) Flaw Characterization Fiqure Number GAA) d o?
13) Was IWA-3300 Flaw Characterization followed? (@)Yes 0 No If no, why?
14) The correct Code Editbn and Addenda was available and used. GYes Preparer GG 4OK Riteviewer-,-(-l_
15) Prepare by and date K {Z 16 byb and dat ,
' PI_-_ _____I________ Z~r-Iq 2-The results are correct andgmethodology used is in The review assures that the results are correct and the accordance with applicable codes, standards, specifications and methodology used is in accordance with applicable codes, procedures. standards, specifications and procedures.
1ID -. 121 .
ISI Flaw Disposition Worksheet PAA Site/Unit " M C_ / thy Zi Procedure. 5s2 (AT- 3 Outage No.: IZ frg ZOZ Summary No.: SOS /g L Procedure Revision/FC: 9 I Report No.: pcXa S A c) I o Workscope: lcQC Work Order No.: Page: of
1) Flaw Number (a a "'1 / 3) ISI Interval 3 R it ( OK Reviewer ,a&ee
2) Item INumber 13- 3 ,,. ' 0 4) Code Edition &Addenda I 9 s 9 AJd t)A41el-, - OK Reviewer A-"
l_% S (L3 S(A te sC r-! A 5) Acceptance Standard Z-t;(Z -3 SY O ( OK Reviewer
, Zoo f( 6 - S. Se" 6) Calculations (See Below) 0) OK Reviewer o OL =
,,AdO t 5 -- /5 , n "' r 1 t; 17- Y- S/a _,, -) 7.
a/ ! 2<co = ---- ,
ia **=> I .s tr ' "
1'2 ., O(' .33 :C y_ i i pf\3LC XL 93- 3 7O- I . C y -<.C F- (Zc, fv-% -T (C). , 33______ _a ( !5 . \ y - q{ Li
') -J '3 0. 30 )
Xy - Jr In (J O.-3 6
-. 18 C-*
a -9t- (.,, \/) + q -q y --
C). '5 or '05 '/' FA y = 0/6 'ez"i "
7) Results 0 OK Reviewer 4 a/= C).3'3 Code allowable a/t% = Li q 1c Calculated alt% = 3 Laminar flaw surface area: (0.75 1 w) = /A 6
8) Table used for analysis i OK Reviewer Ca .fCJ C i; 3 /
--1C}
9) Was linear interpolation used? (I Yes 0 No If no, why?
10) Was IWA-3200 Significant Digits For Limiting Values followed? AYes 0 No If no, why?
11) The correct Code Edition and Addenda was available and used. 0 Yes Preparer A 0 OK Reviewer
12) Statement of acceptability or rejectability with basis.
OK Reviewer 9 h Accept 0 Reject
0) (a/t) Code allowable > (a/t) calculated
° OEM flaw evaluation handbook (see attached analysis) 0 (alt) Code allowable < (a/t) calculated
13) Prepared by and ate- 14) Engineering reviewby and date
______ 2 /S-aZc 2.
The results are correct and the methodology used is in accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used is in accordance with applicable codes, standards, specifications and procedures.
15 ) Appoved by andd,7/ /d/
!1RIMPAm al, / LO/§ R This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity that the results and the methodology are correct and In accordance with applicable codes, standards, specifications and procedures.
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface ASME SECT Xi 1989 WI NO ADDENDA SPC INITIAL TO VERIFY ISI Report# 2002U010 Evaluation Performed By: S. Cla Date:02/14102 Flaw # 600#11 Reviewed By: J. Wren G Date:_3 dc'-d Z Length Length of the flaw TLis determined by finding the difference between Li and L2 for perpendicular scans, W1 and W2 for parallel scans.
L and W values are from page 5 of the UT report.
I= -1.8 (L2) - 2.4 (-L1) = - 0.6" inches.
Thickness Thickness of the component at the location of the flaw, usin or nom wall (circle one).
This value is from page 1 of the UT report.
"t" = 5.50 inches Calibration The measured angle in the calibration block was 630 degrees Calculations usina metal path From page 5 of the UT report, Scan # 4 The flaw exhibited 20% DAC at 9.040 and 9.830 inches MP. Max amplitude is 9.240 inches MP with the transducer exit point at 2.2 inches from the centerline of the weld and 390.50 inches from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
) Determine correction factor due to curvature.
Radius = 67.94" (R). Surface distance to max amp point = 8.233" ( C). CIR = .121 TAN.
INV TAN = 6.899 . COS = .993 . ( R I COS ) - R = .479 correction factor.
1) Determine the upper depth of the flaw from the exam surface.
9.040" (metal path at 20% upper)
COS of the measured angle 630 = 4.104" - .479" correction factor = 3.625 inches depth.
2) Determine the lower depth of the flaw from the exam surface.
9.830" (metal path at 20% lower)
COS of the measured angle 630 = 4.463" - .479" correction factor = 3.984 inches depth
3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
9.240" (metal path at maximum amplitude point)
COS of the measured angle 630 = 4.195"
- .479" correction factor = 3.716 inches depth.
4) Determine the distance from 0" reference to the maximum amplitude point of2 the flaw.
9.240" (metal path at maximum amplitude point) squared = 85.378 (a )
4.195" (depth at maximum amplitude point, before correction) squared = 17.598 (b2) a2 - b2 = 8.233 inches of surface distance to the flaw from the transducer exit point.
390.50 (Lmax) + or - 8.233" (surf dist) = 382.267 inches from 0 reference.
( + or - based on scan direction)
5) Determine S by picking the smaller of the following; S = 3.625" (result of 1) = distance between exam surface and the upper flaw tip
>> OR <<
S = 5.50 (part r)- 3.984 (result of 2) = 1.516" distance between the side opposite exam surface and the lower flaw tip
6) Determine 2d in though wall thickness.
3.984" (from step 2)- 3.625" (from step 1) = .359 inches. j . 2
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface Determination of surface or subsurface 0.4d = (2d /2) - 0.4 = .072" Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = NIA inches.
If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a / 2 = .179 inches.
I= .60" (for a/t> a) t = 5.5" (part thickness) a= .20" (surf o surf, ircle one) S = 1.5"
rrj ll.J2 1
la]J -
ISI Flaw Sizing Worksheet QD Site/Unit: NMC / P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 Summary No.: 502618 Procedure Revision/FC: 9 1 _ Report No.: 2002U010 Workscope: ISI Work Order No.: 0106946 Page: of
1) Flaw Number 4*t 60° o 3) IS[ Interval 3rd Interval to OK Reviewer
2) item Number B2.40 4) Code Edition &Addenda 89 no addenda A OK Reviewer
5) Method -
U1T
6) Flaw Sketch (See Below) OK Reviewer 7 -
Flaw View 394.49,' "L- = 0.4" CL I
2.4" Tube Sheet Head I2*1 1.21" 30" ;2.0" End View Side View 0" Tube Sheet 394.49" Weld CL -------- 4 7
7) Calculations JOK Reviewer Show determination of Surface or Subsurface I Head See attached sheets fo calculations. Top View Show determination of type of 'a" to use See attached sheets fo calculations.
( Yes Preparer P OK Reviewer
8) ISI-FE-1 ParaqraphJ.L&--"Rounding-off Method' was used 6
9) Code Flaw Dimensions e OK Reviewer "a"=
'___ .15 It nominal = N/A It measured = 5.5 'so= I.' 'w = NIA W"=
10) Flaw Type OK Reviewer 9. Subsurface Planar4joRT)
11) Flaw Characterization Figure ( OK Reviewer 7 IWA-3320-1
12) Flaw Characterization Fiqure Number fLAre 0Z
13) Was IWA-3300 Flaw Characterization followed? (3 Yes 0 No If no, why?
OKRevie e . I
14) The correct Code Edition and Addenda was available and used. 3 Yes Preparer SC F&OK Reviewer Mer
& . 16QL¶""-byand d e),-d I L
15) Prepared by and da On? . rla (/ -q-b The results are correct and the methodology used is in The rki4wi assures that the results are correct and the accordance with applicable codes, standards, specifications and methodology used is in accordance with applicable codes, procedures. standards, specifications and procedures.
- liq i 'al ISI Flaw Disposition Worksheet PiM-tC Site/Unit: JlC. I ex 2. Procedure. 2 SJr -CA ( - 3 Outage No.: e Z R 2Žc)o 7-Summary No.: 5i0 )L(a / A Procedure Revision/FC: q? I Report No.: ?C. O2 LkO I O Workscope: AIL Work Order No.: 0 I ( C, 9c$a Page: _ of _
1) Flaw Number & 00 e / 72 3) ISI Interval 0 OK Reviewer
2) Item Number i3 - 3 3
( 2 .V5/ 4) Code Edition & Addenda 9 Fc Ah ) /(c/e 3 OK Reviewer
(/- ,
t_ e
() FACeC5) Acceptance Standard :1,WFJ 3-$7 )OK Reviewer ,
6) Calculations (See Below) () OK Reviewer G4o--'
s - IYSll Ie - 5.it /,
,_ //
-a= e -y R/j ,% - 5g 5- ,/,a d -' Z. 7 7 0 Ss x . _ l'Y 3 -,
T P, 6 (' 6- --r(j X - S. I Y c), 3S .) - $70
d. 3'9 xy O~o -)3 u7,y) S y:-X 11 "'l 0 .4 0 -,
7) Results 6@ OK Reviewer £7.-
all = , 39 Code allowable a/t% = (', 5Ae Calculated alt% = a. 7 Zo Laminar flaw surface area: (0.75 I w) = AJ11A
8) Table used for analysis ? OK Reviewer A0e-d .-C Wi3 - 6 I
9) Was linear Interpolation used? Q Yes 0 No If no, why?
10) Was IWA-3200 Significant Digits For Limiting Values followed?
Yes 0 No If no, why?
11) The correct Code Edition and Addenda was available and used. (3 Yes Preparer Ail i} OK Reviewer ,
12) Statement of acceptability or rejectability with basis. () OK Reviewer _, (P Accept 0 Reject 2 (a/t) Code allowable > (a/t) calculated o OEM flaw evaluation handbook (see attached analysis) o (aft) Code allowable < (a/t) calculated
13) Prepred by and date 14) Engineerinngeview by and date
__ _ _ __ Z- r-0o2-The results are correct and the methodology used is in accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used is in accordance with applicable codes, standards, specifications and procedures.
15) App ed byand da t This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity that the results and the methodology are correct and In accordance with applicable codes, standards, specifications and procedures.
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented in plane normal to pressure retaining surface ASME SECT Xl 1989 W/ NO ADDENDA SPC INITIAL TO VERIFY ISI Report# 2002U010 Evaluation Performed By: §Aay Date:02114/02 Flaw # 60°#12 Reviewed By: J. Wren -4 -Date:a284-OZ Lenath Length of the flaw 'C' is determined by finding the difference between LI and L2 for perpendicular scans, WI and W2 for parallel scans.
L and W values are from page 5 of the UT report.
t= -2.0 (L2) - 2.4 (L) - 0.4" inches.
Thickness Thickness of the component at the location of the flaw, usingfbr nom wall (circle one).
This value is from page 1 of the UT report.
,t" = 5.50 inches Calibration The measured angle in the calibration block was 630 degrees Calculations using metal Path From page 5 of the UT report. Scan # 3 The flaw exhibited 20% DAC at 10.310 and 10.970 inches MP. Max amplitude is 10.650 inches MP with the transducer exit point at 2.2 inches from the centerline of the weld and 385.00 inches from the D"reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
) Determine correction factor due to curvature.
Radius = 67.94" (R). Surface distance to max amp point = 9.489" (C). C/R = 140 TAN.
INV TAN = 7.970 . COS = .990 . ( R I COS ) - R = .686 correction factor.
1) Determine the upper depth of the flaw from the exam surface.
10.310" (metal path at 20% upper)
COS of the measured angle 63° = 4.681" - .686" correction factor = 3.995 inches depth.
2) Determine the lower depth of the flaw from the exam surface.
10.970" (metal path at 20% lower)
COS of the measured angle 630 = 4.980" - .686" correction factor = 4.294 inches depth.
3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
10.650" (metal path at maximum amplitude point)
COS of the measured angle 63° = 4.835"
- .686" correction factor = 4.149 inches depth.
4) Determine the distance from 0" reference to the maximum amplitude point of the flaw.
2 10.650" (metal path at maximum amplitude point) squared = 113.422 (a )
4.835" (depth at maximum amplitude point, before correction) squared = 23.377 (b2) 4 a b2 = 9.489 inches of surface distance to the flaw from the transducer exit point.
2 385.00 (Lmax) + or - 9.489" (surf dist) = 394.489 inches from 0" reference.
( + or - based on scan direction)
5) Determine S by picking the smaller of the following; S = 3.995" (result of 1) = distance between exam surface and the upper flaw tip
>> OR <c S = 5.50 (part ty)- 4.294 (result of 2) = 1.206" distance between the side opposite exam surface and the lower flaw tip
6) Determine 2d in though wall thickness.
4.294"1 (from step 2)- 3.995" (from step 1)= .299 inches. 11
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface Determination of surface or subsurface 0.4d = (2d 12) 0.4 = .060" Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = NIA inches.
If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a /2 = .149 inches.
I= .40" (for a/C > 0.;§,8 2a) t= 5.5" (part thickness) a= .15" (surf or suircle one) S= 1.2" 11/4' I1I
. 117 . 12 WD ISI Flaw Sizing Worksheet Site/Unit: NMC / P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 Summary No.: 502618 Procedure RevisionIFC: 9 1 - Report No.: 2002U010 Workscope: ISI Work Order No.: 0106946 Page: of _
1) Flaw Number i13 ,0° 3) ISI Interval 3rd Interval V OK Reviewer
2) Item Number B2.40 4) Code Edition & Addenda 89 no addenda 1 OK Reviewer
5) Method UT
6) Flaw Sketch (See Below) 3 OK Reviewer Flaw View 394.04' l .50" LI= 1.22" Cow_ 1.3"
-- .65-0.08'?
Tube Sheet Head End View Side View 0* Tube Sheet 394.04" Weld CL - - - - - - - - - - - - - - - - - - .- - - - - - - - - - - - - - - - - - - -
I
7) Calculations 'P OK Reviewer Head Show determination of Surface or Subsurface See attached sheets fo calculations. Top View Show determination of type of 'a' to use See attached sheets fo calculations.
OK Reviewer c7 J
8) ISI-FE-1 Paraqraph .7- - 'Roundinq-off Method' was used ( Yes Preparer i9
9) Code Flaw Dimensions ED OK Reviewer 0 sI = -l it W = N/A a= 1.2i bar ,t2 nominal- = NiA Itmeasured" = 5.5
10) Fiaw Type COK Reviewer Subsurface Planar (UTIRT)
11) Flaw Characterization Figure ?OK Reviewer WV- IWA-3320-1
12) Flaw Characterization Fiqure Number Flu\A3 A1
13) Was IWA-3300 Flaw Characterization followed? (3)Yes 0 No If no, why?
14) The correct Code Edition and Addenda was available and used. i Yes Preparer 6k ,XK Reviewer
15) Prepared by( and date\9 1f d de)y Ld j __L Z-
_EArJ ..
_ _- _4_-__ _ -e
_-_5_ __ -_ _
The results are correcdand the methodology used is in The review assures that the results are correct and the accordance with applicable codes, standards. specifications and methodology used is in accordance with applicable codes, procedures. standards, specifications and procedures.
PlI ISI Flaw Disposition Worksheet NQb Site/Unit: AJf1C I PI Z Procedure: lr S r- -CT - Outage No.: iP- z p, 200 2 Summary No.: :Z i I Procedure RevisionlFC: 9' Report No.: 2 oZ Lka 1i Workscope: 4:s 1: Work Order No.: OIo (a 9 46 Page: of 1)Flaw Number 4QW ""t/3 3) ISI Interval _____ _ 3_ _ OK Reviewer 2)Item Number 63(. B22.90 4) Code Edition & Addenda I age ~cger@ OK Reviewer sAld LAL) I s 5Lk6 - 5 AC 5) Acceptance Standard Co3
& - 3 5/0 0 OK Reviewer -
r
6) Calculations (See Below) (4) OK Reviewer A
_I.= 1." e ~5" i1 a =.30 "'
"le . /30
/ =
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O. ?5
'Y X/00 J 7 == ,_oo X/OO7 i/ 7. .'. Y = k J4-83sI -'
acs -T ps BLOC 2L e77 / ::L _
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7) Results 0 OKReviewer 9OW' a/l = V .;LS Code allowable att% = '3- 8 yd Calculated a/t% = 5% 57?- Laminar flaw surface area: (0.75 l w) = __J__
8) Table used for analysis ( OK Reviewer / t L i -3 -/o I
9) Was linear interpolation used? 0 Yes It No If no, why?
1 Ai STP Dt s F
10) Was IWA-3200 Significant Digits For Limiting Values followed? @> Yes 0 No If no, why?
11) The correct Code Edition and Addenda was available and used. ( Yes Pref parer.4 & eOK FReviewer,
12) Statement of acceptability or rejectability with basis. (3 OK Reviewer (1 Accept 0 Reject 0 (a/t) Code allowable > (alt) calculated P LeC £3YWC1'P
6) OEM flaw evaluation handbook (see attached analysis) RLA L A cesA a1 (a/t) Code allowable < (a/t) calculated 14J (o LG SCenc AL - Pc0Z1y 4 - 1.
13) Prepaed by and date 14) Engineeriag revie~v by and date 72 - t2Y J:2 ZCg The results are correct and the methodology used is in accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used is in accordance with applicable codes, standards, specifications and procedures.
15) Apprgyed by and date This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity that the results and the methodology are correct and in accordance with applicable codes, standards, specifications and procedures.
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Figure A-2.4 Flaw Evaluation Chart for the Tubesheet-Channel Head Junction for Prairie Island Units 1 and 2 x Inside Surface Surface Flaw X Longitudinal Flaw X Outside Surface X Embedded Flaw X Circumferential Flaw 1299W.Wpf:lb/011995 A2-7 'a 2-r-5-- 0 'Z
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface ASME SECT Xl 1989 WI NO ADDENDA SPC INITIAL TO VERIFY ISI Report # 2002U010 Evaluation Performed By: *Sly Date:02114/02 Flaw# 600#13 Reviewed By: J. Wren Date Lenath Length of the flaw "v is determined by finding the difference between LI and L2 for perpendicular scans, W1 and W2 for parallel scans.
L and W values are from page 5 of the UT report.
I= -0.08 (12) - 1.3 (L1) = - 1.22" inches.
Thickness Thickness of the component at the location of the flaw, usingE)or nom wall (circle one).
This value is from page 1 of the UT report.
"t" = 5.50 inches Calibration The measured angle in the calibration block was 630 degrees Calculations usina metal Dath From page 5 of the UT report, Scan # 4 The flaw exhibited 20% DAC at .990 and 2.410 inches MP. Max amplitude is 1.750 inches MP with the transducer exit point at 1.1 inches from the centerline of the weld and 395.60 inches from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
) Determine correction factor due to curvature.
Radius = 67.94" (R). Surface distance to max amp point = 1.559" ( C). C/R = .023 TAN.
INV TAN = 1.318 .COS = 1.000 . (R/ COS )- R= .000 correction factor.
1) Determine the upper depth of the flaw from the exam surface.
0.990" (metal path at 20% upper)
COS of the measured angle 630 = 0.449" - .000" correction factor = 0.449 inches depth.
2) Determine the lower depth of the flaw from the exam surface.
2.410" (metal path at 20% lower) COS of the measured angle 630 = 1.094" - .000" correction factor = 1.094 inches depth.
3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
1.750" (metal path at maximum amplitude point)
COS of the measured angle 63° = 0.794"
- .000" correction factor = 0.794 inches depth.
4) Determine the distance from 0" reference to the maximum amplitude point 2of the flaw.
1.750" (metal path at maximum amplitude point) squared = 3.062 (a )
2 0.794" (depth at maximum amplitude point, before correction) squared = .630 (b )
v a2 - b2 = 1.559 inches of surface distance to the flaw from the transducer exit point.
395.60 (Lmax) + or - 1.559" (surf dist) = 394.041 inches from 0" reference.
( + or - based on scan direction)
5) Determine S by picking the smaller of the following; S = 0.449" (result of 1) = distance between exam surface and the upper flaw tip
>> OR <<
S = 5.50 (part 't) - 1.094 (result of 2) = 4.406" distance between the side opposite exam surface and the lower flaw tip
6) Determine 2d in though wall thickness.
1.094" (from step 2) - 0.449" (from step 1) = .645 inches.
I2So_ IOZJ
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented in plane normal to pressure retaining surface Determination of surface or subsurface 0.4d = (2d /2) *0.4 = .129" Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = NIA inches.
If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a /2 = .322 inches.
t = 1.2" (for al > 0.5, 1 = 2a) t= 5.5" (part thickness) a= .30" (surf orcyfx circle one) S= .45"
ATTACHMENT 2 NUCLEAR MANAGEMENT COMPANY, LLC PRAIRIE ISLAND NUCLEAR GENERATING PLANT, UNIT 2 DOCKET NO. 50-306 LICENSE NO. DPR-60 LETTER NO. L-PI-03-030 UT Vessel Examination, Outage No: P12RF2002, Report No: 2002U021 10 pages follow
NW) UT Vessel Examination Site/Unit: NMC / P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 Summary No.: 501558 Procedure Revislon/FC- 9 --- Report No.: 2002U021 Workscope: ISI Work Order No.: 0106946 Page: 1 of -.7- /o a.1' Code- 1989 Code Cat: B-B Location: Containment Drawing No.: 2-1SI- 36
Description:
Bottom Head to Shell System ID: RC Component ID: W- 3 Size/Length: 2.5" 124' Thickness/Diameter 5.585' t7' 6" Limitations: See Comments.
Start Time: 1300 Finish Time; 1642 Examination Surface: Inside I Outside [ Surface Condition: Ground Flush Lo Location: CenterlIne of Manway Wo Location: Centerline of Weld Couplant: Sonotrace 40 Batch No.: #00143 Temp. Tool Mfg.: Telatemp Serial No.: NSP 178 0 Surface Temp.: 90 F Cal. Sheet No.: 2002CA037, 2002CA038, 2002CA039 Angle Used l 0 45 l45Tl 60l 60T Scanning dB 37.0 52.0 52.0 62.5 62.5 Indication(s): Yes0 Nor Scan Coverage: Upstream 97 Downstream ij CWWI CCWE 1 Comments 2.5" x 2.5" Pads at 18' 3 to 18' 2.8". Two (2) 1" Instrumentation lines at 17' 10.5" and 20' 1.3". - Soo attached 45 degree data for ID Geometry.
Results: NAD II IND I GEO 6 _______
Percent Of Coverage Obtained > 90%: Yes Reviewed Previous Data: Yes Examiner Level II Signature Date Reviewer Sgnaturete Knot, Brian , !& 2/10/2002 Clay, Sean P. / 2_2m? 2' 13 Examiner Level II ,Signature Date Site Review Sipaurq Thomas, Travis Date I 2/1012002 Wren, Jerry P. S r trJ . 2D-aI-e Other Level NIA Signature Date ANII Review ,_:z> Signature Date NIA / Clow, Ron I p ; /2,/ 2
Supplemental Report NWID Report No.:
Page: 2 2002U021 of 10 9IQ--
Summary No.: 501558 Examiner Knott, Brian Level: If Reviewer: Clay, Sean P. Date: ,2- )3-oz Examiner: Thomas, Travis Level: II Site Review: Wren, Jerry P. Date: 2-21-e Z Other, N/A Level: NIA ANII Review: Clow. Ron 2 Date: - / Mo0Z Comments: None Sketch or Photo: G:\IDDEAL50\Pl2RF02002\SUPPLEMENTAL UT\2002u021_1 bmp PhsSlIUCAzC MCUt iL i- 5 LTJJc.A`TtW PLOT 6gEE1-Lo hi Tr Weim SPREWAS
% :;'- I I I I I k I I
I Ii _- /
N
/
V ____
1qM1>i Ultrasonic Indication Report Site/Unit: NMC I P12 Procedure: ISI-UT-3 Outage No: P12RF2002 Summary No.: 5011558 Procedure RevisionlFC: 9 1 _ Report No.: 2002U021 Workscope: ISI Work Order No.: 0106946 Page: 3 of /D 97P't, Search Unit Angle: 45 & 60 o Piping Welds Wo Location Centerline of Weld (3 Ferntic Vessels > 2"T Lo Location: Centerllne of Manwav o Other N/A MP Metal Path Wmax Distance From Wo To S U. At Maximum Response RBR Remaining Back Reflection W1 Distance From Wo At Of Max (Forward)
L Distance From Datum W2 Distance From Wo At Of Max (Forward)
Comments: None Scan Indication % W Forward Backward Ll L L RBR Remarks No Of Max Of Max Of Max Of Max Of Amp DAC W MP W1 MP W2 MP Max Max 2 1 40% 4.08 6.165 3.8 6.033 4.5 6.449 17.05 171.1 171.8 45 Degree -ID geometry intermittently from 16 to 24' at varying lower amplitudes.
2 1 30% 3.25 2.981 2.7 2.426 3.7 3.4 270.2 270.6 271.0 60 Degree - Sce attached indication plot sheet.
Examiner Level Io Si nature Date Reviewer ,!Signature Date fKnott,7Brian A 2/1012002 Clay, Sean P. / Air 62Snob Examiner Level i ignature Date Site Review ,o, ignature Date Thomas, Travis 2/10/2002 Wren, Jerry P. cj ^A- / 2 -
Other Level N/A Signature Date ANII Review Signature Date N/A l / Clow, Ron / / Date
Determination of Percent Coverage for UT Examinations - Vessels SitelUnit: NMC / P12 Procedure IS-UT-3 Outage No P12RF2002 Summary No.: 501558 Procedure Revision/FC: 9 1 ._ Report No: 2002U021 J
Workscope: ISI Work Order No 0106946 Page 4 of 1 i 0 dog Planar Scan 100.000 % Length X 94.500 % volume of length / 100 = 94.500 % total for 0 dog 45 deo Scan 1 100.000 % Length X 93.700 % volume of length 1 100 = 93.700 % total for Scan 1 Scan 2 100.000 % Length X 91.300 % volume of length /100 = 91.300 % total for Scan 2 Scan 3 100.000 % Length X 94.500 % volume of length /100 = 94.500 % total for Scan 3 Scan 4 100 000 % Length X 94.500 % volume of length 1100 = 94 500 % total for Scan 4 Add totals and divide by # scans = 93.500 % total for 45 deg Other deg 60 Scan 1 100.000 % Length X 97.700 % volume of length /1 00 = 97.700 % total for Scan 1 Scan 2 100.000 % Length X 96.900 % volume of length / 100 = 96.900 %total for Scan 2 Scan 3 100.000 % Length X 94.500 % volume of length / 100 = 94.500 % total for Scan 3 Scan 4 100.000 % Length X 94.500 % volume of length / 100 = 94.500 % total for Scan 4 Add totals and divide by # scans = 95.900 % total for 60 dog Percent complete coverage Add totals for each angle and scan required and divide by # of angles to determine; 94.633 % Total for complete exam Note:
Supplemental coverage may be achieved by use of other angles / methods When used, the coverage for volume not obtained with angles as noted above shall be calculated and added to the total to provide the percent total for the complete examination.
Site Field Supervisor: sk.X Date, Date 2
______ BlIed Z7
Limitation Record Site/Unit NMC / P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 Summary No. 501558 Procedure Revision/FC: 9 1 .. MUPL.
Pit ~ore LN..ntJUU Pag 11 11U..
5.
4UV of=U~1 ; L4 Workscope: IS' Work Order No.: 0106946 Page- 5 Of 27-Description of Limitation:
2.5" x 2.5" Pads at 18'.3" to 18' 2.8". Two (2) 1" Instrumentation lines at 17' 10.5" and 20'1.3".
Sketch of Limitation: GAIDDEAL50\P12RF02002\SUPPLEMENTAL UT\2002u021_2 bmp O. 5x PADSc0L-O: OJM
.r 9- C A AW; ¶tT1 Vdo L1IES D Lr- Ao'(.3 4o I '2 s fmb 1116. s' 40 lt7' 11.t7 Q<- 5 5 .+0 L 9' Do-JA ¢i2,M (t ents Limitations removal requirements:
N/A Radiation field: NIA Examiner Level 11 w. Signature Date Reviewer Date Knott, Brian 0/7 2 Clay, Sean P.
2/in200 Examiner Level lC Signature/ Date Site Review Signdture Date Thomas, Travis / ~ 211012002 Wren, Jerry P. 1 >_(,.j_ .2-.21-0 7-Other Level N/A Signature Date ANII Review U. S-ature Date N/A Clow, Ron J
NM C- ISI Flaw Sizing Worksheet Site/Unit: NMC / P12 Procedure: ISI-UT-3 Outage No.: P12RF2002 Summary No.: 501558 Procedure RevisionlFC: 9 I Report No.: 2002U021 9r, ,
Workscope: ISI Work Order No.: 0106946 Page: 6 of -to Z-'
1) Flaw Number 1 3) ISI Interval 3rd Interval _ (3 OK Reviewer >@47?iJ
2) Item Number B2 11 4) Code Edition & Addenda 89 no addenda _i) OK RevIewer VA j
5) Method UT
6) Flaw Sketch (See Below) (i) OK Reviewer -
Flaw View G'\IDDEAL50\PI2RFO2002\Flaw Sizing Ufl2001u021-6S-1 JPG 270 G-C.7 1 -------
W.
Shell .eI Side Vl.vV V°etdCL 2.70 7"- .8 W eld C L -.. .. - .. --.
271.0-Head 0 Ct
7) Calculations G3 OK Reviewer _
Show determnination of Surface or Subsurface Seo attached calculation sheet.
Show determination of type of 'a' to use See attached calculation sheet.
8) ISI-FE-1 Paraqraph 7.0 - "Rounding-off Method' was used Yes Preparer SPC (3 OK Reviewer `
9) Code Flaw Dimensions i OK Reviewer '
.80" "a= .25" It nominal' = N.A t measured, = 4.5" "s" = 1.2 "wn = NIA
10) Flaw Type £0 OK Reviewer Q2Z.. Subsurface Plan arI-00
11) Flaw Characterization Fiqure (3 OK Reviewer g IWA-332C)-1
12) Flaw Characterization Figure Number Flaw I
13) Was IWA-3300 Flaw Characterization followed? (3 Yes 0 No If no, why?
14) The correct Code Edition and Addenda was available and used (3 Yes Preparer SPC i OK ReviewerE
15) Prepared by and date 16) Review by an ti Sean P. Clay 4.. /)-1q-02. JeryP, Wren A e_(-J~n1 Z- Z\ -o)f~
The results are correct fdthe methodology used is in The review assures tt the ra sults are correct and the accordance with applica le codes, standards, specifications and methodology used is in accord ance with applicable codes, procedures. standards, specifications and rprocedures.
NM9) ISI Flaw Disposition Worksheet Site/Unit: NMC L P12 Procedure. ISI-UT-3 Outage No. P12RF2002 Summary No: 501558 Procedure Revision/FC 9 1 -- Report No. 2002U021 Workscope: iSI Work Order No.: 01 06946 Page: 7 of 7
1) Flaw Number I 3) ISI Interval 3rd Interval I') OK Reviewer
2) Item Number B-B/B2.1 1 4) Code Edition &Addenda 89 no addenda (3 OK Reviewer
5) Acceptance Standard IWB-3510 ! 3 OK Reviewer
6) Calculations (See Below) f3 OK Reviewer See attached worksheet for calculations and signatures.
7) Results 0 OK Reviewer a/l = .31 Code allowablealt% = 4.5 Calculated alt% = S6 Laminar flaw surface area (0 75 1 w) = N/A
8) Table used for analysis (3 OK Reviewer _ _ IWB-3510-1
9) Was linear interpolation used? ( Yes 0 No If no, why?
10) Was IWA-3200 Significant Digits For Limiting Values followed? 0i Yes 0 No If no, why?
11) The correct Code Edition and Addenda was available and used. 0i Yes Preparer CO) OK Reviewer
12) Statement of acceptability or rejectability with basis. 0i OK Reviewer 0 Accept 0 Reject o (a/t) Code allowable > (a/t) calculated 0( OEM flaw evaluation handbook (see attached analysis)
(3 (a/t) Code allowable < (a/t) calculated
13) Prepared by and date 14) Engineering review by and date Daniel S. Whitcomb 2/15/2002 Karen LeGoullon 211512002 The results are correct and the methodology used is in accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures methodology used is in accordance with applicable codes, standards, specifications and procedures
15) Approved by and date Monica Vik 2/1812002 This approval assures that all Involved with this flaw sizing and flaw disposition were aware of the necessity that the results and the methodology are correct and in accordance with applicable codes, standards, specifications and procedures
Flaw Sizing Calculations Using Metal Path for Vessel Welds > 2" For surface and subsurface single planar flaws oriented In plane normal to pressure retaining surface ASME SECT Xi 1989 WI NO ADDENDA 5 INITIAL TO VERIFY fDQJe- 10 ISI Report # 2002U021 Evaluation Performed By: Jer W*ren i Date:._,XL/YLL_
Flaw # Reviewed By: 6 ieir e~4 Date:e?-I'I-oQ Length Length of the flaw "C'is determined by finding the difference between LI and L2 for perpendicular scans, WI and W2 for parallel scans L and W values are from page 3 of the UT report.
l= 271 (L2) - 270.2 (LI) = .8 inches.
Thickness Thickness of the component at the location of the flaw, using UT or nom wall (circle one).
This value is from page 2 of the UT report.
"t" = 4.5 inches Calibration The measured angle in the calibration block was 60 degrees Calculations usina metal path From page 3 of the UT report, Scan # 2 The flaw exhibited 20% DAC at 2.426 and 3.4 inches MP. Max amplitude is 2.981 inches MP with the transducer exit point at 3.25 inches (W) from the centerline of the weld and 270.6 inches (L) from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
1) Determine the upper depth of the flaw from the exam surface.
2.426 (metal path at 20% upper)
COS of the measured angle .5 = 1.213 inches depth.
2) Determine the lower depth of the flaw from the exam surface.
3.4 (metal path at 20% lower) ' COS of the measured angle .5 = 1.7 inches depth.
3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
2.981 (metal path at maximum amplitude point)
COS of the measured angle .5 = 1.490 inches depth.
4) Determine the distance from the center line of the weld to the maximum amplitude point of the flaw 2.981 (metal path at maximum amplitude point) squared = 8.886 (a2 )
1.490 (depth at maximum amplitude point) squared = 2.222 (b2 )
v a2 - b2 = 2.581 inches of surface distance to the flaw from the transducer exit point.
3.25 (Wmax) - 2.581 (surf dist) = .669 inches to the centerline of the weld.
5) Determine S by picking the smaller of the following; S = 1.213 (result of 1) = distance between exam surface and the upper flaw tip
>> OR c<
S = 4.5 (part "t") - 1.7 (result of 2) = 2 distance between the side opposite exam surface and the lower flaw tip
6) Determine 2d in though wall thickness.
1.7 (from step 2)- 1.213 (from step 1) = .487 inches.
Determination of surface or subsurface 0.4d = (2d /2)
0.4 = .097 Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = NIA inches.
If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a / 2 = .243 inches.
I = .80 (for all > 0.5, l = 2a) t = 4.5 (part thickness) a= .25 (surf or sub surf, circle one) S= 1,2
I s '
ISI Flaw Disposition Worksheet Nme-1 lf-Site/lUnit /- ' s I c Procedure: Outage No.: ,Gocd */2a,2.
Summary No.: 5D /
6-
Procedure Revision/FC: 9 I Report No.: 0?,:70OeC0Q /
Workscope: ,27 Work Order No: O /ox <Y'6 Page: 9 of /I
1) Flaw Number / 3) ISI Interval _ _ _ @ OK Reviewer , c
2) item Number 3- 3 // 4) Code Edition & Addenda /11WtŽe A OK Reviewer
5) Acceptance Standard 72i-3S5/ ' OK Reviewer
6) Calculations (See Below) OK Reviewer le.. 5 " zZ = eP1S-a./XaD Y_ _ -'IZ / -
o,,
Cup 'S ei aS j6-'
f'I0 - M S A _
r,_ ;26- =, 31 WL=N'Y a~a-5 1 As,, _,z7 -,, 5 65, /- a,- 5-6' )-z;, =// -7 41Z (i)
- r7/ j,) 3 '5 _
go ar /Z , /b/ /gw star~
£/O ageTM t( K S "ZV e-(2fh e
7) Results 0 OK Reviewer *9: f a/l = # 31 Code allowable alt% = a/. b Calculated alt% = 6f 6 Laminar flaw surface area (0.75 l w) = ALAS
8) Table used for analysis i OK Reviewer W Z;"3- 3522- /
9) Was linear interpolation used? 0 Yes 0 No If no, why?
10) Was IWA-3200 Significant Digits For Limiting Values followed? P Yes 0 No If no, why?
11) The correct Code Edition and Addenda was available and used. 43Yes Preparer A de. 'Z OK Reviewer 12)Statementofacceptabilityorrejectabilitywithbasis. -OKReviewer A..j 0 Accept OReject 0 (alt) Code allowable> (alt) calculated fe z: /,,/# p> eC-
OEM flaw evaluation handbook (see attached analysis) A Z /4A16 Xz 5 4' '6f
0) (alt) Code allowable < (a/t) calculated DP-4.
A
13) Prepared by and date 14) Engineenng review b and date dS<.e OS-t/i/S-ZOo L _ _ _ _ __ A- /5 0 -2 The results are correct and the methodology used is in accordance This review assures that the results are correct and the with applicable codes, standards, specifications and procedures. methodology used isin accordance with applicable codes, standards, specifications and procedures.
15) roved by and; e This approval assures that all involved with this flaw sizing and flaw disposition were aware of the necessity that the results and the methodology are correct and in accordance with applicable codes, standards, specifications and procedures.
I t .-
-6/ 6-s5-e 02 ID ,~ 10 A-' .261 &e1 -2/
aZ .2 n~ SurfacelEmbedded I A~a. O/'9~. Flaw Domarkatlon llne 0.13 LAWS MTH1I UNE 0.12 - iZ10vt THIS L1NE I ARE OTALLOWABLE 0.11 10, 20, 30 yrs.
0.1 7) 0.09
- 0.08 LL 0.07 Flaws In this C ogion must
$-. 0.06 Considored Surf=*
.563tI , 056e
,tl J =,61 0.05 0.04 ALL EMBEDDED FLAWS 0.03 (ON THIS SIDE OF-DEMARKATION UNE)
ARE ACCEPTABLE PER 0.02 CRITERIA OF IWB 36e AS LONG AS 2afts025 0.01 - ::, , . i/
Zp-0 U U.uz5 U.Ub U.075 0.1 0.125 0.15 0.175 "02 0.225 0.2 Distance from Suiface (6/1) 5aŽ- /A*2/. ? -6 //4 5- 4 o Figure A-15.4 Flaw Evaluation Chart for the Lower Shell Circumfere~tial Welds of the Pressurizer X Inside Surface Surface Flaw Longitudinal Flaw X Outside Surface X Embedded Flayw X Circumferential Flaw 1299w-1:1b/090694 A15-6

ML031040109

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_7 a" a' = It nominal = NIA It measured"

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