CPSES-200500454, Relief Requests B-12, B-13, B-14 and C-8 to the Unit 2 Inservice Inspection from 1986 Edition of ASME Code, Section XI

Relief Requests B-12, B-13, B-14 and C-8 to the Unit 2 Inservice Inspection from 1986 Edition of ASME Code,Section XI

ML050800247
Person / Time
Site:	Comanche Peak
Issue date:	03/10/2005
From:	Blevins M TXU Generation Co, LP, TXU Power
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
CPSES-200500454
Download: ML050800247 (40)

Text

TXUw o

"v9,C~ Power TXU Power Mike Blevins Comanche Peak Steam Senior Vice President &

Electric Station Chief Nuclear Officer P.O. Box 1002 (EO1)

Glen Rose, TX 76043 Tel: 254 897 5209 Ref: 10 CFR 50.55a(g)(5)(iii)

Fax: 254 897 6652 mike.blevinsetxu.com CPSES-200500454 Log # TXX-05006 File# 10010 March 10, 2005 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555

SUBJECT:

COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)

DOCKET NO. 50-446 RELIEF REQUESTS B-12, B-13, B-14 and C-8 TO THE UNIT 2 INSERVICE INSPECTION (ISI) FROM 1986 EDITION OF ASME CODE, SECTION XI, NO ADDENDA (INTERVAL END DATE: AUGUST 2,2004, FIRST INTERVAL)

REF: TXU Power Letter logged TXX-04133 dated August 2, 2004, from Mike Blevins to the NRC TXU Generation Company LP (hereafter TXU Power) has determined that certain inspection requirements of ASME Section XI are impractical due to physical interferences and is requesting relief pursuant to 10 CFR 50.55a(g)(5)(iii).

TXU Power requests approval of the proposed Relief Requests (RRs) by the NRC staff. TXU Power has informed the NRC that the current Code of Record for CPSES is now the 1998 Edition of the ASME Code,Section XI, 1999 and 2000 Addenda, per the referenced letter. The attached RRs are for components that did not meet the examination criteria of ASME Subsection IWB-2500, IWC-2500, and Code Case N-460. TXU Power ascertained that, based on the high percentage of examination volume completed and the lack of any recordable indications, there is a high level of confidence in the continued structural integrity of the components.

A member of the STARS (Strategic Teaming and Resource Sharing) Alliance C)q Callaway

• Comanche Peak

• Diablo Canyon . Palo Verde ,-Couth Texas Project . Wolf Creek

TXX-05006 Page 2 of 2 This communication contains no new licensing basis commitments regarding Comanche Peak Steam Electric Station (CPSES) Unit 2.

If you have any questions or need additional information regarding this matter, please feel free to contact Jack Hicks at (254) 897-6725.

Sincerely, TXU Generation Company LP By: TXU Generation Management Company LLC Its General Partner Mike Blevins By::(A9~ (VI Rafael F res Vice President, Nuclear Operations JCH Attachments c- B. S. Mallet, Region IV W. D. Johnson, Region IV M. C. Thadani, NRR Resident Inspectors, CPSES T. Parks, Chief Inspector, TDLR to TXX-05006 Page 1 of 9 TXU Power Comanche Peak Steam Electric Station (CPSES), Unit 2 First 10-Year Interval Request for Relief No. B-12 Proposed Alternative in Accordance with 10 CFR 50.55a(g)(5)(iii)

Inservice Inspection Impracticality I. System/Component for Which Relief is Reauested:

Residual Heat Exchanger (2-01) Head to Shell Weld (TCX-2-1120-1-1)

Residual Heat Exchanger (2-01) Shell to Flange Weld (TCX-2-1120-1-2)

II. Code Requirement for Which Relief is Requested:

At the time of the inspection CPSES Unit 2 was required to perform inservice examinations of selected welds in accordance with the requirements of 10 CFR 50.55a, and the 1986 Edition, no Addenda, of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code,Section XI, Rules for Inservice Inspection of Nuclear Power Plant Components. The Code invokes the examination volume requirements of Figure IWC-2500-1.

Weld No. TCX-2-1120-1-1 Table IWC-2500-1. Examination Category C-A, Code Item No. C1.20, Figure IWC 2500-1. The subject weld is a full penetration weld and requires 100%

volumetric examination of the head to shell weld as defined in Figure IWC-2500-1.

Weld No. TCX-2-1120-1-2 Table IWC-2500-1. Examination Category C-A, Code Item No. Cl .10, Figure IWC-2500-1. The subject weld is a full penetration weld and requires 100%

volumetric examination of the shell to flange weld. as defined in Figure IWC-2500-1.

III. Impracticality of Compliance:

The examination coverage is limited by physical interferences from the RHR heat exchanger flange, flange bolts, and welded supports. (Refer to the attached sketches on pages 8 and 9.) Therefore, pursuant to the requirements of 10 CFR 50.55a(g)(5)(iii) relief is requested from performing 100% volumetric examination requirements per Figure IWC-2500-1.

to TXX-05006 Page 2 of 9 TXU Power Comanche Peak Steam Electric Station (CPSES), Unit 2 First 10-Year Interval Request for Relief No. B-12 (Continued)

Proposed Alternative in Accordance with 10 CFR 50.55a(g)(5)(iii)

Inservice Inspection Impracticality IV. Burden Caused by Compliance:

The examination coverage is limited by physical interferences from the RHR heat exchanger flange, flange bolts, and welded supports, as indicated in the attached pages. These conditions make 100% examination coverage impractical for these welds. In order to gain access to these welds for examination purposes, the RHR heat exchanger would require a design modification. Imposition of this requirement would be a significant burden to TXU Power.

V. Proposed Alternative and Basis for Use:

There are no proposed alternatives. TXU Power has examined a significant portion of these welds, obtaining approximately 80% coverage for weld TCX 1120-1-1 and 63% coverage for weld TCX-2-1120-1-2.

The subject welds were examined to the maximum extent possible. Welded supports limit the axial and circumferential scans in both directions for TCX 1120-1-1, with approximately 20% of the code volume not examined. Flange, flange bolting, and welded supports limit the access for the single sided axial scans, done using three different angles, for TCX-2-1120-1-2. Full circumferential scans for weld-2 were obtained. Approximately 37% of the code volume for weld-2 was not examined. Refer to pages 3 through 9 for the weld locations, data, profiles, and sketches. There were no recordable indications identified by these best effort examinations.

Based on the high percentage of the examination volume completed, and the lack of any reportable indications, there is a high level of confidence in the continued structural integrity of the welds. There is no anticipated impact upon the overall plant quality and safety, and the granting of the relief should not jeopardize the health and safety of the public.

VI. Duration of Proposed Alternative:

The relief is requested for Comanche Peak Steam Electric Station Unit 2, third period, second outage, of the first 10-year interval.

VII Precedent:

I) Comanche Peak (Reference SER dated November 24, 1994, TAC No.

M83125.

Attachment I to TXX-05006, Page 3 of 9 Ils CtASS 3 SHE.tSIDE t2'I NLET i2 OUTLET 12 INLET I1 OUTLET 2?s IutIKTnATlS' I"mY NOTES: HEAT EXCHANGER No. PRECEDES EXAU AREA DESCRIPTION: RHR HXs 1 & 2 IDENTIFICATION. VESSEL IS 1.00 (SA-240).

NOZZLES ARE 12'SCH 80S WITH INTERNAL TU ELECTRIC REINFORCING PAD. CPSES UN IT 2 INSERVICE INSPECTION LOCATION ISOMETRIC APPROVAL: ag 4v g1116* f. FLOW: TCX-2-1120 REV. I 030194 TCXZI 1201.1SI tr

Attachment I to TXX-05006 Page 4 of 9 PDI Calibration Data Sheet Plant/Unit CC)MANCHE UNIT 2 Data Sheet # 27UT04 I I I I I Company Comp/System WESDYNE RHR HX 2-01 Page /ofC Lit V I I

I I111k 1 II Procedure No. TX-ISI-214 Cal. Checks Time I I I Rev/Chng. No. 2/0 Initial Callb. 0820 I I I .T Cal. Block No. TBX-30 Initial Calib. Date 9/18/03 Cal. Block Temp. 74" Comp.Temp. 91.2 Intermediate 0930 II I 0.3 Ir ~~I I 211--

Therm S/N TU-2 296 Intermediate 9118/03 ISTITI -

1 #2I I Size FLAT Sch. 1. 1. .r Final Calib. 1145 Ferritic Each Major CRT Div. -

FXAustenitic 1"

Final Calib. Date 9/18/03 Search Unit #1 ISearch I1:IUnit _

Cal. Direction: Axia I X Circ. Both Couplant Manufacturer KBA IManufacturer KBA Scan Area: l to Weld Type: ULTRAGEL II Serial No.: OOcI OX , 2.25MHz Serial No.: 002MB6 / 2.25 MHz xn to Weld Batch: 01225 Size: 0.50" Shape: ROUND Size: 0.50" Shape: ROUND Exam Angle: 450 Model: MSWQC IExam Angle: 600 Model: ISWQC Re'cordableMeasured Angle: 450 IMeasured Angle: 600 I

Access Indications Exam Sens. Wedge Style: MSW QC Wedge Style: MSW QC Examination Area/Weld Yes INoI Geom . Search Unit Cable TCXl2-1120-7 1.1 2 sided X NO j 30.5dB__ Type: RG 174 Type: RG 174 TCX-2-1120-Z 1 I sided NO Length: 12' No. 1 Length: 12' No. I Instrument Settings Instrument Settings

=___Make/Model: KBAIUSN 52R Make/Model: KBANUSN 52R Remarks/Reasons for incomplete Scan(s) Serial No: 101940 Serial No: 101940 Welded supports limits the 2 scan on weld #2. Delay: 5.023 Range: 5.0" Delay: 5.023 Range: 5.0" Flange and bolting limits the 5 scan on weld #2. M'tl CaV~el: .1210 ps Pulser SINGLE M'tI CalVel: .1252 ps Pulser SINGLE Welded supports limit the 2,5,7. &8 scans on weld #1 Damping: 1000 n Reject: 0% Damping: 1000 f) Reject: 0%

See attached limitation sheets for welds 1 and 2. Rep. Rate: HIGH Freq.: 2-8 MHz Rep. Rate: HIGH Freq.: 2-8 MHz 20% of weld I not examined. 37% of weld 2 not exam ned. Filter: FIXED Mode: P/E Filter: FIXED Mode: PIE Examiners: Larry M. Musgrave Level II Date 9/18/03 Reference Sensitivity (Sens.) Reference Sensitivity (Sens.)

,M Axial: 16.5dB Circ. 16.5dB Axial: 34.5dB Circ. 34.5dB

$IA Level AV Date . I* SDH Sensitivity: m%@SWP 0.5.28.5dB SDH Sensitivity: 78% @SWP 1, 29.5dB Reviewer. Date I Us on Further Evaluation Required? Yes 9

_r

'fli Electric Rvile Iv Date TU Electric Level III Review/ IDate ANI[Review/Date fu J2l&76 I/a//l/ 3 A ap to,//oS

Attachment I to TXX-05006 Page 5 of 9 PDI Calibration Data Sheet Plant/Unit COMANCHE UNIT 2 Data Sheet # 27UT04A Company Comp/System Procedure No.

WESDYNE RHR HX 2-01 TX-ISI-214 Page .a of 6 C_____

- I I I I Cal. Checks Time RevlChng. No. 2/0 Initial Calib. 0815 I II Cal. Block No. TBX-30 Initial Calib. Date 9/18103 Cal. Block Temp. 74' Comp.Temp. 91.2- Intermediate 0930 Therm S/N Size FLAT Sch.

TU-2296 1 T Intermediate Final Calib.

9/18/03 1145 I II- I -

Ferritic EX Austenitic Final Calib. Date 9/18103 Each Major CRT Div. = 1" Search Unit #1 Cal. Direction: Axial X Circ. Both Couplant Manufacturer RTD Scan Area: l to Weld Type: ULTRAGEL II Serial No.: 01-1195/2MHz to Weld Batch: 01225 Size: 2(lOX18)yShape: RECT

_ Exam Angle: 600 Model: TRL REecordable Measured Angle: 62° Access Indications Exam Sens. Wedge Style: FIXED Examination Area/Weld Yes I No I Geom Search Unit Cable TCX-2-1120-2 1 sided ix NO 130.5/48.5 13Type: RG 174 Length: 6' No. 2 L

__ _ Instrument Settings Make/Model: KBA I USN 52R M Remarks/Reasons for incomplete Scan(s) Serial No: 101940 S Flange and bolting restrict the 5 scan. Delay: -9.094 Range: 5.0" C Welded supports limit the 2 scan. Mtl CaV~el:.2361 Ps Pulser: PIC DUAL M See attached limitation sheet for weld 2. Damping: 1000 O Reject: 0% D 37% of weld 2 not examined. Rep. Rate: HIGH Freq.: 2-8 MHz R Filter FIXED Mode: P/C F Examiners: Larry M. Musgrave Level II Date 9/18/03 Reference Sensitivity (Sens.) R li-r Axial: 60.7dB Circ. 60.7dB A

& -_ _ Level /U/ Date XC d SDH Sensitivity: 78% 3.6SWP 52.7dB IS Reviewer: ________Date .Xs o, FurtherEvaluation Required? Yes 7N TU Electric Revien /Date TU Electric Level 1Il Review)I Date ANIIReview/Date %,L LA:>6,_

of e)°7 I c//i/c 3 -~ t le 5/F/~ _0 C. ID/2 31 03

Attachment I to TXX-05006 Page 6 of 9 PROFILE OF THE EXAMINATION REPORT NO. 27UT04 STATION COMANCHE PEAK UNIT 2 PAGE 3 OF SYSTEM RHR COMPONENT HX2-01 DRAWING NO. TCX-2-1120 IDENT NO.

PROFILE SECTION DIAMETER '/S.zS WELD LENGTH /1/2.o0 CROWN WIDTH " CROWN HEIGHT 11ubA LONG SEAM LOCATION(S)N SP5 LL'

• Io 8Xx 5S~dle 2S

\\\ )s 9 7Lo 1a4:o-C?/8qqz 0. q a9p 0.6^ 90 cof 0 -e4erene. relk-en h O Xnlc+ Nn+zzile.

PROFILE EXAM COMMENTS PROFILE TAKEN AT TDC 8 COVERAGE ACHIEVED SECTION Xi RISK INFORMED AUGMENTED PREVIOUS DATA REVIEWED 'k TYPE U EXAMINER Larry M. Musurave4P. DATE 9118103 EXAMINER 24. DATE,6 REVIEWER i f ° DATE JoI/p/#; REVIEWER *O DATE Elo/6/&

ANII REVIEW VDATE 1ol3o

Attachment I to TXX-05006 Page 7 of 9 PROFILE OF THE EXAMINATION REPORT NO. 27UT04 STATION COMANCHE PEAK UNIT 2 PAGE OF 6 SYSTEM RHR COMPONENT HX 2-01 DRAWING NO. TCX-2-1120 IDENT NO. 2 PROFILE SECTION DIAMETER q2. z.- WELD LENGTH / Of2.'" CROWN WIDTH /. S' CROWN HEIGHT k/uj LONG SEAM LOCATION(S) Nl SA 4ero' a0 '

o BercecQ 7;kenret Aon ° PROFILE EXAM COMMENTS PROFILE TAKEN AT TMC COVERAGE ACHIEVED SECTION Xl X(. RISK INFORMED AUGMENTED PREVIOUS DATA REVIEWED Ycts TYPE CLIT EXAMINER Lar .Msrv .. AI-DATE 9115103 EXAMINER A-'

COE G DATE By ACIEE REVIEWER _________________ DATE /e)/1h7E REVIEWER \ P iDATE______C!

ANIPREVIEW T DATE

Attachment l-to TXX-05006. - Page 8 of 9 REPORT NO. 27UT-02 WESTINGHOUSE NUCLEAR SERVICES DIVISION PAGE OF LIMITATION TO EXAMINATION TXu PLANT COMANCHE PEAK UNIT 2 SKETCH TCX-2-1 120 SYSTICOMP RHR HX 2-01 PROCEDURE TX-ISI-2 14. R. 2 EXAMINER Larrv M. Museravc 4101.& 4, LEVEL 11 DATE 9118/03 EXAMINER A.- ,4 LEVEL DATE _ _ _/__

COMPONENT ID 1 & 2 RELATED TO PD D D VT PROVIDE SUFFICIENT INFORMATION TO DESCRIBE SIZE. LOCATION AND TYPE OF LIMITATION.

rnMMFNTr I ',KFTrW I nFTAIl N t(Ua((C(aa((aCx (ttCC Cr(( (Ct1t~t((r((C.((~(4L . z.

ITI p~i TUALECTRIC VIEW DATE JU ELECTRIC LEVEL III REVIEW IDATE ANII REVIEW IDATE IU2 L-2I1.

rl 4/

t'Attachment 1-to6'TXX-05006f:

I V

[

I to TXX-05006 Page 1 of 10 TXU Power Comanche Peak Steam Electric Station (CPSES), Unit 2 First 10-year Interval Request for Relief No. B-13 Proposed Alternative in Accordance with 10 CFR 50.55a(g)(5)(iii)

Inservice Inspection Impracticality I. SvstemlComponent for Which Relief is Requested:

Residual Heat Exchanger (2-01) Inlet Nozzle to Shell Weld (TCX-2-1120-1-3)

Residual Heat Exchanger (2-01) Outlet Nozzle to Shell Weld (TCX-2-1120-1-4)

II. Code Requirement for Which Relief is Requested:

At the time of the inspection CPSES Unit 2 was required to perform examinations of selected welds in accordance with the requirements of 10 CFR 50.55a, and the 1986 Edition, no Addenda, of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code,Section XI, Rules for Inservice Inspection of Nuclear Power Plant Components. The Code invokes the examination requirements of Figure IWC-2500-4(b).

Weld Numbers TCX-2-1120-1-3 and TCX-2-1120-14 Table IWC-2500-1. Examination Category C-B, Code Item No. C2.21, Figure IWC-25004(b). The subject welds are full penetration welds, with each weld requiring 100% volumetric examination of the nozzle to shell weld, as defined in Figure IWC-2500-4(b).

III. Impracticality of Compliance:

The examination coverage is limited by physical interferences from the RHR heat exchanger. (Refer to attached sketches on pages 6 and 7.) Therefore, pursuant to the requirements of 10 CFR 50.55a(g)(5)(iii) relief is requested from performing 100% volumetric examination requirements per figure IWC-25004(b).

to TXX-05006 Page 2 of 10 TXU Power Comanche Peak Steam Electric Station (CPSES), Unit 2 First 10-year Interval Request for Relief No. B-13 (Continued)

Proposed Alternative in Accordance with 10 CFR 50.55a(g)(5)(iii)

Inservice Inspection Impracticality IV. Burden Caused by Compliance:

The examination coverage is limited by physical interferences from the RHR heat exchanger. These conditions make 100% examination coverage impractical for these welds. In order to gain access to these welds for examination purposes, the RHR heat exchanger would require a design modification. Imposition of this requirement would be a significant burden to TXU Power.

V. Proposed Alternative and Basis for Use:

There are no proposed alternatives. TXU Power has examined a significant portion of these welds, obtaining approximately 67% coverage for welds TCX 1120-1-3 and TCX-2-1120-1-4.

The subject welds were examined to the maximum extent possible. The design of the RHR heat exchanger to these welded nozzle configurations limits the axial scans in both directions to approximately 16% of the code volume not being examined. The circumferential scan is limited to one side only, with 100 %

examined. Thus, a limitation of approximately 33% of the code volume was not examined in both directions for the axial and circumferential scans. Refer to pages 3 through 10 for the weld locations, data, profiles, and sketches. There were no recordable indications identified by these best effort examinations.

Based on the high percentage of the examination volume completed, and lack of any reportable indications, there is a high level of confidence in the structural integrity of the welds. There is no anticipated impact upon the overall plant quality and safety, and the granting of the relief should not jeopardize the health and safety of the public.

VI. Duration of Proposed Alternative:

The relief is requested for Comanche Peak Steam Electric Station Unit 2, third period, second outage, of the first 10-year interval.

VII. Precedent:

1) Comanche Peak (Reference SER dated November 24, 1994, TAC No.

M83125.

to TXX-05006 Page 3 of 10 LPD1 Calibration Data Sheet Plant/Unit Company Co MANCHE UNIT 2 WESDYNE Data Sheet #

Page 1 27UT01 of 9_ IIIL I I Comp/System RHR HX 2-01 - . .

Procedure No.

Rev/Chng. No.

TX-ISI-214 2/0 Cal. Checks Initial Calib.

Time I 0650

-I~~~ F I I-I - - -I I-Cal. Block No. TBX-51 Initial Calib. Date 9118/03 Cal. Block Temp. 74' C,omp.Temp. 91X. Intermediate 0935 Therm SIN TU-22'96 I TU2282 Intermediate Size Ferritic 12" Sch. .5" T" Final Calib. 1130 II LXJ Austenitic Final Calib. Date 9118103 Each Major CRT Div. = .328 1.2439 Search Unit #1 Search Unit #2 Cal. Direction: Axial Circ. Both X Couplant Manufacturer KBA Manufacturer KBA Scan Area: lIl to Weld Type: ULTRAGEL II Serial No.: 00MXCK I 2.25 MHz Si erial No.: OOYH8X 2.25 MHz ia1o to Weld Batch: 01225 Size: .375 Shape: ROUND Siize: 0.375 Shape: ROUND ExamAngle: 450 Model: BCHMK E xram Angle: 600 Model: MSWQC Recordable 1 Measured Angle: 440 M easured Angle: 580 Access Indications sExam Sens. Wedge Style: MSW QC Vedge Style: MSW QC Examination Area/Weld Yes INoI (Geom Search Unit Cable Search Unit Cable TCX-2-1120-Z I- - UPSTRM _ X 1NO 35dB Type: RG 174 ype: RG 174 TCX-2-1120#-, DNSTRM = X NO 35dB Length: 12' No. 1 Lf.ength: 12 No. 1

=I = Instrument Settings Instrument Settings

_J Make/Model: KBA - USN 52R Make/Model: KBA - USN52R Remarks/Reasons for Incomplete Scan(s) Serial No: 101865 Sierial No: 101865 Delay: 3.781 Range: 3.289 D elay: 5.641 Range: 2.439 450 SHEAR PRIMARY ANGLE SINGLE SID EOEXAM. Mtl CaWel:.1215 Ps Pulser. SINGLE M'iUCaU~el: .1229 pIs Pulser: SINGLE 600 SHEAR FOR EVALUATION SCAN PER FORMED SINGLE SIDE. Damping: 1000 n Reject: 0 D amping: 1000 0 ReJect: 0 (SEE ATTACHED LIMITATION SKETCH) Rep. Rate: HIGH Freq.: 2-8MHz Rep. Rate: HIGH Freq.: 2-8 MHz A TOTAL OF 33.5% NOT EXAMINED.

Filter N/A Mode: FULLWAVE Fiilter N/A Mode: FULLWAVE Examiners: Norman P. Siniaho Level III Date 9/18/03 Reference Sensitivity (Sens.) R eference Sensitivity (Sens.)

Axial: 21dB Circ. 26dB A:Kial: 33dB Circ. NIA Level m Date A/d SDH Sensitivity: 40% @+6dB Si DH Sensitivity: e@ 65% REFd Reviewer: Date £.fy.ot Further Evaluation Required? Yes CO Iciel III Reilew/ Date l iiia t 7 TI I Electric TII Review I Date Electric IteifrwI Date T11 EIctdc I TII Hectrielevel III Review I Date ANI I Revirw / Date IF &-&,->

coj 9-? C. N to/Z310-3

6. 1 C/>/ 61D-to TXX-05006 Page 4 of IO PDI Calibration Data Sheet Plant/Unit COMANCHE UNIT 2 Data Sheet # 27UT01A I I I --I Company WESDYNE Page a of a T I 1-1 Comp/System RHR HX 2-01 I -I I A Procedure No. TX-ISI-214 Cal. Checks Tme -I I 1-1 Rev/Chng. No. 210 Initial Calib. 0655 I I I I Cal. Block No. TBX-30 Initial Calib. Date 09/18/03 I I I Cal. Block Temp 74, Comp.Temp. 91. Intermediate 0930 I I I Therm SIN TU-2296 I TU2282 Intermediate I Size FLAT Sch. 1" T Final Calib. I1130 Ferritic ff Austenitic Final Calib. Date I09118l03 Each Major CRT Div. = .55B Cal. Direction: Axial X Circ. Both Couplant Manufacturer KBA Scan Area: I to Weld Type: ULTRAGEL II Serial No.: 00M5LKI2.25MHz to Weld Batch: 01225 Size: 0.5" Shape: ROUND Exam Angle: 450 Model: MSWQC Recordable Measured Angle: 440 Measured Angle: 0 Access Indications Exam Sens. Wedge Style: MSW QC Wedge Style:

Examination Area/Weld Yes No Geomr Search Unit Cable Search Unit eable TCX-2-1120-7 I/- VESSEL X NO 30dB Type: RG 174 Type: /

TCX-2-11204IJ- VESSEL X NO 30dB Length: 12' No. 1 Length: N/A No.

WVa - ;V

-~ Instrument Settings Instrumnt Settings

- Make/Model: KBA - USN 52R Make/Model: /

RemarkstReasons for incomplete Scan(s) Serial No: 101865 Serial No: I Delay: .047 Range: 5.582 Delay: Range:

SCAN PERFORMED FROM VESSLEL SIDE TO INCREASE COVERAGE Mdtt CaWel: 1191 Pas Pulser: SINGLE MtI Calel: is Pulser:

Damping: 1000 fl Reject: 0 Damping: £2Reject:

(SEE ATTACHED LIMITATION SKETCH) Rep. Rate: HIGH Freq.: 2-8 Rep. R e: Freq.: MHz Filter NIA Mode: FULLWAVE Filter: Mode:

Examiners: Norman P. Siniaho Level Ill Date 9118/03 Reference Sensitivity (Sens.) Ref!ence Sensitivity (Sens.)

Axial: 16dB Circ. NIA A I: dB Circ. dB Level 1 Date A4Z' SDH Sensitivity: _ 40%i 4+10dB H Sensitivity: dB Reviewer: _ _ _ _ _ Date f."-f O Further Evaluation Required? Yes <

TU Elecrc Reiew/ Date TU Electric Letvet III Review/I Dale ANIIReview/Dale -W 4--,-,CVJ Eyt--

0/7 r lo-/+-o 3 v,5;Z CoX6~ /o&0 - C--4x^ to/7-J10-7 to TXX-05006 Page 5of 10 PDI Calibration Data Sheet Plant/Unit COMANCHE UNIT 2 Data Sheet# 27UTO1B 11 I I I Company WESDYNE Page 3 of 8 Comp/System RHR HX 2-01 Procedure No. TX-ISI-214 Cal. Checks Time Rev/Chng. No. 2 /0 Initial Calib. 0700 _--I-L -L--

Cal. Block No. TBX-51 Initial Calib. Date 9118/03 __ __ _ - .- .- I I I I I Cal. Block Temp. 74* Comp.Temp. 91.20 Intermediate 0935 Therm SIN TU-2296 ITU-2282 Intermediate Size 12" Sch. .5" T. Final Calib. 1130 Ferritic SJ Austenitic Final Calib. Date 9118/03 Each Major CRT Div. = .25" Search Unit #1 search unit 0z /

Cal. Direction: Axial X Circ. Both Couplant Manufacturer MEGASONIC Manufacturer Scan Area: I to Weld Type: ULTRAGEL II Serial No.: G0121 I 4 MHz Serial No.:

to Weld Batch: 01225 Size: 2).14X.3 Shape: RECT Size: _ _Shape:

Exam Angle: 600 Model: CGD Exam Angle: ° Model:

Recordable ] Measured Angle: 62° Measured Angle: /

Access Indications Exam Sens. Wedge Style: NIA Wedge Style: _

Examination Area/Weld Yes I No l ;eom I Search Unit Cable Search Unit Cable TCX-2-1i20-_ /- UPSTRM _ X l NO j 59dB IType: RG 174 Type: .N/A TCX-2-1120-Y I-f jDNSTRM = X l NO 59dB Length: 6' No. 2

. IInstrument Settings i Make/Model: KBA-USN 52R Remarks/Reasons for Incomplete Scan(s) Serial No: 101865 I SINGLE SIDE ACCESS LIMITS SCAN 1.o ONE DIRECTION. Delay: 3.781 Range: 2.5 SCAN OF WELD VOLUME 100% FRON 1ONE SIDE ONLY. M'tl Cal/el: .2605 pis Pulser DUAL (SEE ATTACHED LIMITATION SKETCl-d) Damping: 1000 n Reject: 0%

Rep. Rate: HIGH Freq.: 2-8 MHz Filter: N/A Mode: FULLWAVE Examiners: Norman P. Siniahg Level Ill Date 9/18/03 Reference Sensitivity (Sens.)

/...-6_ Axial: 59dB Circ. N/A I

Level ,&Date z S SDH Sensitivity: 59 @90%PSH Reviewer: - A, Date < f Further Evaluation Required? Yes c TU Electric Reici, I I/ate TU Electric eiI III R lew I latfe ANII Itelev /IhDthe (J(#C 4 V /;b (5y7` "7 lo -3 ,n 1oy/°1 lltq.D QtC

Attachment 2 to TXX-05006 Page 6 of 10 PROFILE OF THE EXAMINATION REPORT NO. 27UT01 STATION COMANCHE PEAK UNIT 2 PAGE OF SYSTEM RHR COMPONENT HX 2-01 DRAWING NO. TCX-2-1120 IDENT NO. 3 PROFILE SECTION DIAMETER I WELD LENGTH CROWN WIDTH . SS' CROWN HEIGHT A1/4 LONG SEAM LOCATION(S) W/4 i  ??o'VILFE TAh geKs 1eOA ?Relt4o'Sa LAIR Sy .91 PROFILE EXAM COMMENTS PROFILE TAKEN AT TDC COVERAGE ACHIEVED SECTION Xi JSe5 SRUT RISK INFORMED ous AUGMENTED PREVIOUS DATA REVIEWED Ysy TYE r TYPE_

EXAMINER Norman P.Slnlaho DATE 9118/03 EXAMINER DATE REVIEWER p DATE Id.l'1 REVIEWER DATE lc+/-4 ANII REVIEW _ __ DATE [

to TXX-05006 Page 7 of 10 PROFILE OF THE EXAMINATION REPORT NO. 27UT01 STATION COMANCHE PEAK UNIT 2 PAGE 5 OF S SYSTEM RHR _ COMPONENT HX 2.01 DRAWING NO. TCX-2.1120 IDENT NO. 4 PROFILE SECTION DIAMETER 12 WELD LENGTH 37¢tR CROWN WIDTH SS" CROWN HEIGHT NfI/ LONG SEAM LOCATION(S)O

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REVIEWER Pc -"p7 6 Y- DATE Io$ i+-03 REVIEWER DATEJl4*~L3 ANII REVIEW -DATE f 1~o

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EXAMINER Norman P. Siniaho , LEVEL III DATE 9'18/03 EXAMINER /J ,4 LEVEL A26 DATE A/tA COMPONENT ID TCX.2-1120- 3 AND 4 RELATED TOF RA MT D PT FY

[2jUT D VT PROVIDE SUFFICIENT INFORMATION TO DESCRIBE SIZE. LOCATION AND TYPE OF LIMITATION.

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-rv to TXX-05006 Page 1 of 12 TXU Power Comanche Peak Steam Electric Station (CPSES), Unit 2 First 10-year Interval Request for Relief No. B-14 Proposed Alternative in Accordance with 10 CFR 50.55a(g)(5)(iii)

Inservice Inspection Impracticality I. System/Component for Which Relief is Requested:

Steam Generator (2-03) Channel Head to Tubesheet Weld (TCX-1-3100-3-1)

Steam Generator (2-04) Channel Head to Tubesheet Weld (TCX-1-3100-4-1)

II. Code Requirement for Which Relief is Requested:

At the time of the inspection CPSES Unit 2 was required to perform examinations of selected welds in accordance with the requirements of 10 CFR 50.55a, and the 1986 Edition, no Addenda, of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code,Section XI, Rules for Inservice Inspection of Nuclear Power Plant Components. The Code invokes the examination requirements of Figure IWB-2500-6.

Weld Numbers TCX-1-3100-3-1 and TCX-1-3100-4-1 Table IWB-2500-1. Examination Category B-B, Code Item No. B2.40, Figure IWB-2500-6. The subject welds are full penetration welds, with each weld requiring 100% volumetric examination of the channel head to tubesheet welds, as defined in Figure IWB-2500-6.

III. Impracticality of Compliance:

The examination coverage is limited by interferences from the steam generator tubesheet flange, steam generator supports, and welded insulation support pads.

(Refer to the attached sketches on pages 7 and 8.) Therefore, pursuant to the requirements of 10 CFR 50.55a(g)(5)(iii) relief is requested from performing 100% volumetric examination requirements per Figure IWB-2500-6.

to TXX-05006 Page2of 12 TXU Power Comanche Peak Steam Electric Station (CPSES), Unit 2 First 10-year Interval Request for Relief No. B-14 (continued)

Proposed Alternative in Accordance with 10 CFR 50.55a(g)(5)(iii)

Inservice Inspection Impracticality IV. Burden Caused by Compliance:

The examination coverage is limited by physical interferences from the configuration of the steam generator tubesheet flange, the steam generator supports, and insulation support pads. These conditions make 100% examination coverage impractical for these welds. In order to gain access to these welds for examination purposes, the steam generator and its supports would require a design modification. Imposition of this requirement would be a significant burden to TXU Power.

V. Proposed Alternative and Basis for Use:

There are no proposed alternatives. TXU Power has examined a significant portion of these welds, obtaining approximately 78% coverage for welds TCX 3100-3-1 and TCX-1-3100-4-1.

The subject welds were examined to the maximum extent possible. Steam generator tubesheet flange, steam generator supports, and insulation support pads limited the axial and circumferential scans in both directions, with approximately 22% of the code volume for each weld not examined. Refer to pages 3 through 12 for the weld locations, data, profiles, and sketches. There were no recordable indications identified by these best effort examinations.

Based on the high percentage of the examination volume completed, and the lack of any reportable conditions, there is a high level of confidence in the continued structural integrity of the welds. There is no anticipated impact upon the overall plant quality and safety, and the granting of the relief should not jeopardize the health and safety of the public.

VI. Duration of Proposed Alternative:

The relief is requested for Comanche Peak Steam Electric Station Unit 2, third period, second outage, of the first 10-year interval.

VIII. Precedent:

1) Comanche Peak (Reference SER dated December 28, 1995, TAC Nos.

M93333 and M93334.

to TXX-05006 Page 3 of 12

'EL0 2 1..2-13OOi 9.1"

=L MANWAtT- ROLTrNG WNSWD!P4033S 1 -- ~

3.i WioTSWC I-0I TO 1-816 IA COLOStDE I-BIT TO 1-332 is 2 2-t tbOtSIOE 2-BI TO 2-tl6 2* -otCAi IO TO tuSHEEfr WELO COLDSIDE 2-8lt TO 2-832 2B 1-1.2-1.3-1 a 4-1 3 3-I ttOTStOE 3-SI TO 3-el6 3A COLDS IOE 3-SIT TO 3-632 38 4 4-t uOtSIDE 4-83 TO 44-tl 4A COt.OSIDE 4-8Bt tO 4-832 4t NOZZLE INSIDE-POltlu NOTES; DESCRIPTION: STEAU GENERATORS 1. 2. 3 & 4 T IECTRItCv S tTUBES ICE) 5.3/SA-508 (HEAOS IDEt 5.3-/SA-216 I EL ECTR I C tBOLTING) 1.875 DIA./I6.1i LENGTH CPSES UNIT 2 INSERVICE INSPECTION LOCATION ISOMETRIC APPROVAL, R aR '.P.(

S_ TCX-1-3100 lREV. I I 09-09-94

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to TXX-05006 Page 4 of 12 PDI Calibration Data Sheet Plant/Unit COMANCHE UNIT 2 Data Sheet # 27UT29 Company WESDYNE Page / of -

Comp/System STEAM GENERATOR XI Ll Il I I I Procedure No. TX-ISI-210 Cal. Checks Time Rev/Chng. No. 4/0 Initial Calib. 0930 I I I I I Cal. Block No.

Cal. Block Temp Therm S/N 7ib' TBX-28 90° Comp.Temp. 10?

Ti2297 S- y /-4./ ;

Initial Calib. Date 10/10/03 Intermediate Intermediate N/A N/A I- I1 Size N/A Sch. 5.45" IT Final Calib. 1505 I77Ferritic J Austenitic Final Callb. Date 10/10/03 Each Major CRT Div. = .90" Search Unit #1 Search Uni #2 Cal. Direction: Axial X Circ. Both Couplant Manufacturer KBA Manufacturer /

Scan Area: I to Weld Type: ULTRAGEL II Serial No.: D1554212.25 MHz Serial No.:

11 to Weld Batch: 01225 Size: .5 X 1.0" Shape: RECT Size: _ Shape:

Exam Angle: 450 Model: GAMMA Exam Angle: 0 Model:

lRi ecordable e Measured Angle: 440 Measured Angle:

Access Inidications Exam Sens. Wedge Style: MSW Wedge Style:

Examination Area/Weld Yes l No I Geom Search Unit Cable Search Unit Caf TCX-1-3100-3-1 2-SIDEDl [ X 54 dB l .ype: RG-174 TCX-1-3100-4-1 2-SIDED TX 54 dB LLength: 15' No.of connecters:

Instrument Settings 0

Type:

Length: No.of cphnecters InstrumerrSettings I I I I I_ Make/Model: KBA / USN52R Make/Model: I Remarks/Reasons for Incomplete Scan(s) Serial No: SAP102352 Serial No: /

Delay: 12.143" Range: 12.35" Delay: I Range:

SEE LIMITATION SHEET Mtl CaWel: .1283 us Pulser SINGLE M tl Cat el: 7 s Pulser 22.5% NOT EXAMINED Damping: 1000 U1 Reject: 0% Damping: / Reject:

Rep. Rate: HIGH Freq.: 2-8 MHz Rep. Rat Freq.:

_ Filter FIXED Mode: FULLWAVE Filler: /tMode:

Examiners: ALAN KELLY 48ypLevel I II Date 10/10/03 Reference Sensitivity (Sens.) Refle nee Sensitivity (Sens.)

Axial: 36.5 dB Circ. 36.5dB Axi : dB Circ.

_ __ _ _Level/vA Date SDH Sensilivity: 609% REF S Sensitivity:

P4a

-C Reviewer: (%.L._ A/x§L4Q DateIo-gZ-o3 FurtherEvaluationRequired7 Yes I TV' Electric Reifrw I Daute TU Ebctr Lve Il/evewI at ANI trilUnw/ IDate I

~?4>P to TXX-05006 Page 5 of 12 PDI Calibration Data Sheet Plant/Unit COMANCHE UNIT 2 Data Sheet # 27UT29A I I I I I I Company WESDYNE Page . of I I I I I I Comp/System STEAM GENERATOR -- I I I Procedure No. TX-ISI-210 Cal. Checks Time I 2 1111 1 1 I I Rev/Chng. No. 4 /0 Initial Calib. 0935 TlTi1 1 1 1 1-1 I I Cal. Block No. TBX-28 Initial Calib. Date 10/10/03 I I Cal. Block Temp 900 Comp.Temp. 102 Intermediate N/A Therm S/N 77'jW'2297 *W /4 ,P df' Intermediate NIA Size N/A Sch. 5.45" T Final Calib. 1310 I I I I I wFerritic U Austenitic Final Calib. Date 10110/03 I I I I I Each Major CRT Div. = 0.7 Search Unit #1 Search Unit #2

/I Cal. Direction: Axial X Circ. Both Couplant Manufacturer KBA Manufacturer Scan Area: I to Weld Type: ULTRAGEL II Serial No.: C26671 /2.25 MHz Serial No.:

11 to Weld Batch: 01225 Size: 1.0" Shape: ROUND Size: Shape:

Exam Angle: 00 Model: GAMMA Exam Angle: 0 Model:

Recordable Measured Angle: NIA Measured Angle:

Access Indications Exam Sens. Wedge Style: N/A Wedge Style:

Examination Area/Weld Yes No l Geom Search Unit Cable Search Unit Ct l' TCX-1-3100-3-1 2-SIDED X 41 dB Type: RG-174 Type: NIA TCX-1-310WA-1 2-SIDED. X 41 dB Length: 15' No.of connecters: 0 Length: No.of cfnnecte

= Instrument Settings Instrume Setting Make/Model: KBA I USN52R Make/Model:

Remarks/Reasons for Incomplete Scan(s) Serial No: SAP101938 Serial No:

Delay: .696" Range: 7.U Delay: / Range:

SEE LIMITATION SHEET Mti Ca/Vel: .2330 Its Pulser. SINGLE M't CaWel: / Pulser:

22.5% NOT EXAMINED Damping: 1000 El Reject: 0% Damping: 7 S Reject:

Rep. Rate: HIGH Freq.: 2-8 MHz Rep. Rat. Freq.: MHz

_ Filter: N/A Mode: FULLWAVE Filter: __ Mode:

Examiners: ALAN KELLY L 1evel 11 Date 10/10/03 Reference Sensitivity (Sens.) Refer nce Sensitivity (Sens.)

Axial: 23.0 dB Circ. 23.0 Db Axi : dB Circ. dB

> , Level ,/ j Date VO SDH Sensitivity: 18% 0 REF SH Sensitivity: dB Reviewer: C4 4/Xi 6 J"1P1 Date /v-1.-o3 Further Evaluation Required? Yes to

/

T1I~Electric Re%lew I D~ale -- -----

T Jectric Level Ill Review I Otte ANI I R~eviw I Mirn g~ Y7 o- J-- (J 4, -, I -

llz-to TXX-05006 Page 6 of 12 PDI Calibration Data Sheet Plant/Unit COMANCHE UNIT 2 Data Sheet # 27UT29B Company WESDYNE Page :3 of -

Comp/System STEAM GENERATOR II I I-I Procedure No. TX-ISI-210 Cal. Checks Time

_ I,-I I -II Rev/Chng. No.

Cal. Block No.

Cal. Block Temp 900 4/0 TBX-28 Comp.Temp. 102 Initial Calib. 1000 Initial Calib. Date 10/10103 Intermediate N/A

_~~

_~~

_I __lI I _I _1 I- Ii Therm S/N TU 2297 Intermediate N/A -I I I Size NIA Sch. 5.45" T* Final Calib. 1500

-iFerritic U Austenitic Final Calib. Date 10/10/03 Each Major CRT Div. = 90" Search Unit #1 Search Unit #2 /

Cal. Direction: Axial X Circ. Both Couptant Manufacturer. KBA Manufacturer Scan Area: I to Weld Type: ULTRAGEL II Serial No.: B23849 / 2.25MHz Serial No.:

11 to Weld Batch: 01225 Size: .5S X 1.0" Shape: RECT Size: . .Shape:

Exam Anale: 60° Model: SWS Exam Annie Monrfpel Recordable Measured Angle: 600 Measured Angle: 77 Access Iindications Exam Sens. Wedge Style: MSW Wedge Style: /

Examination Area/Weld TCX-1-3100-3-1 TCX-1-3100-4-1 2-SIDED 2-SIDED Yes No I Geom X

XI 77dB 77dB Type:

Length: 15-Search Unit Cable RG-174 No. of Connecters 0 Type:

Length:

Search Unit qble N/A

/_No.

Instrument Settings Instrumft Settings I Make/Model: KBA / USN50 Make/Model:

Remarks/Reasons for incomplete Scan(s) Serial No: 9404 Serial No: I Delay: 14.545S Range: 17.66" Delay: Range:

SEE LIMITATION SHEET Mtl Ca~el: .1231 is Pulser. SINGLE Mti Cale: is Pulser.

22.5% NOT EXAMINED Damping: 1000 El Reject: OFF Damping S2 Reject:

Rep. Rate: HIGH Freq.: 2-8 MHz Rep. Rae: __ Freq.: MHz Filter. FIXED Mode: FULLWAVE Filter Mode:

Examiners: GEOREMlINI Level II Date 10/10/03 Reference Sensitivity (Sens.) Refence Sensitivity (Sens.)

Axial: 53.0 dB Circ. 53.0 dB A ial: dB Circ. dB RveeLevel / Date SDH Sensitivity: H 50% REF DH Sensitivity: dB Reviewer. _a_/ D a te c. Further Evaluation Requiredi Yes No d)IX T' Fledtrie ReIviI Daie IEle lrivel II Relew / Ihte ~AN II RnivIw Date-Wa4t en7;4 0d/J r10 3 I/0O 3 b~~t 491 1'3{°t to WESTINGHOUSE NUCLEAR SERVICES DIVISION RE PT _UT_

Page 7 of 12 LIMITATION TO EXAMINATION 1Au PLANT COMANCHE PEAK UNIT 2 SKETCH TCX-1-3100. REV. 0 SYST/COMP STEAM GENERATOR 3 PROCEDURE TX-.SI-2 IO.R. 2 EXAMINER ALAN KELLY LEVEL 11 DATE IO!10/03 EXAMINER N/A LEVEL N/A DATE NIA COMPONENT ID WELD 3-1 RELATED TO D T PT E UT D VT PROVIDE SUFFICIENT INFORMATION TO DESCRIBE SIZE, LOCATION AND TYPE OF LIMITATION.

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P<¢Pt/,;I 1 k( , - ,Oi,06 to TXX-05006 Page8 of 12 REPORT NO. 27UT29 WESTINGHOUSE NUCLEAR SERVICES DIVISION PAGE 5 LIMITATION TO EXAMINATION TXU PLANT COMANCHE PEAK UNIT 2 SKETCH TCX-1..3 100. REV. 0 SYST/COMP STEAM GENERATOR3 PROCEDURE TX-ISI-210. R. 2 EXAMINER ALAN KELLY l/(1. / LEVEL 11 DATE 10110103 EXAMINER N/A LEVEL N/A DATE N/A COMPONENT ID WELD 4-1 RELATED TO MT PT xIUT VT PROVIDE SUFFICIENT INFORMATION TO DESCRIBE SIZE. LOCATION AND TYPE OF LIMITATION.

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, .4 to TXX-05006 Page 1 of 7 TXU Power Comanche Peak Steam Electric Station (CPSES), Unit 2 First 10-year Interval Request for Relief No. C-8 Proposed Alternative in Accordance with 10 CFR 50.55a(g)(5)(iii)

Inservice Inspection Impracticality I. System/Component for Which Relief is Requested:

Welded Attachment to the Main Steam Piping for Support, TCX-2-2400-H2

11. Code Requirement for Which Relief is Requested:

At the time of the inspection CPSES Unit 2 was required to perform examinations of selected welds in accordance with the requirements of 10 CFR 50.55a, and the 1986 Edition, noAddenda, of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code,Section XI, Rules for Inservice Inspection of Nuclear Power Plant Components. The Code invokes the examination requirements of Figure IWC-2500-5 Welded Attachment for Main Steam Pipe Support, TCX-2-2400-H2 Table IWC-2500-1. Examination Category C-C, Code Item No. C3.20, Figure IWC-2500-5. The weld of the plate to the pipe is a fillet weld, welded all around the pipe, and requires 100% surface examination of the required areas as defined in Figure IWC-2500-5.

III. Impracticality of Compliance:

The examination area of the welded attachment to the pipe is limited by physical interferences from pipe whip restraint, MS-2-004-906-C67W. (Refer to pages 6 and 7). Therefore, pursuant to the requirements of I OCFR 50.55a(g)(5)(iii) relief is requested from performing 100% surface examination requirements per Figure IWC-2500-5.

to TXX-05006 Page 2 of 7 TXU Power Comanche Peak Steam Electric Station (CPSES), Unit 2 First 10-year Interval Request for Relief No. C-8 (continued)

Proposed Alternative in Accordance with 10 CFR 50.55a(g)(5)(iii)

Inservice Inspection Impracticality IV. Burden Caused by Compliance:

The examination area is limited by physical interferences from pipe whip restraint MS-2-004-906-C67W. This condition makes 100% examination coverage impractical for this weld. In order to gain access to this weld for examination purposes, the pipe whip restraint would require a design modification. Imposition of this requirement would be a significant burden to TXU Power.

V. Proposed Alternative and Basis for Use:

There are no proposed alternatives. TXU Power has examined a significant portion of the welds, obtaining approximately 75% coverage for the welded attachment to the main steam piping for support TCX-2-2400-H2.

The subject welds were examined to the maximum extent possible. The pressure boundary for the welded attachment consisted of two, 20"x 21 "x 1.5" thick bent plates welded all around to the 32" main steam line. The closeness of pipe whip restraint MS-2-004-906-C67W limited the access to the welds, with a total code weld area of approximately 25% not examined. Refer to pages 3 through 7 for the support location, support drawing, surface examination data. There were no recordable indications identified by this best effort examination.

Based on the high percentage of the examination area completed, and the lack of any reportable conditions, there is a high level of confidence in the continued structural integrity of the welds. There is no impact upon the overall plant quality and safety, and granting of the relief should not jeopardize the health and safety of the public.

VI. Duration of Proposed Alternative:.

The relief is requested for Comanche Peak Steam Electric Station Unit 2, third period, second outage, of the first 10-year interval.

VII. Precedents:

None.

to TXX-05006 Page 3 of 7 3249S-2-004 -

II1 t12 1-0004 IHI1 MS-2-004-407-CT2K 112) uS-2-004-409-C72T H3 uS-2-004-401-CTZS 6 ITYPI H4 I MS-2-004-404-C?2K H5 I US-2-004-402-CflS H6 . uS-2-004-405-C72K "I . uS-2-004-406-CZK H1S US-2-004-408-C72t 149 MS-2-004-405-C72s H10 t US-2-004-416-5?2R W11 US-2-004-4j5-S72R

12. US-2-004-412-STZR H13 US-2-274-401.ST2K 114 S-.2-274-402-S7TK NOTES: LONDITfLOINAL WELDS: DESCRIPTIONs MAINSTEAU IL. 2L. 3L, 41 5L. 6L. 7L. 8L, 9L. IOL. IIL, 12L. 13L. 14L. 151L 16L. 17L. 19L. 25L. 26L T/SCH: 13211.25VMIN. WALL. t24'11.531V/IO. (2411.219O/80. TU ELECTRIC (81.719'/160. (81).500V/80 (61).719V/160 CPSES UNIT 2 BRP: MS-2-RB-024. US-2-RB-028. MS-2-SB-020.

INSERV ICE INSPECT ION MS-2-SB-055 LOCATION ISOMETRIC FLOW: M2-0202 TCX-2-2400 - IREV. 3 1 09-01-94

Attachment 4 to TXX-05006 Page 4 of 7

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.0. I IE@D. MATERIAL DESCRIPTION WdATERIAL DESIC.

T 2 I112' THK PL 2O'x2P (BEND TO SUIT) SA36 5 2 ISMA-35-SO SNUBBER 7 2 SMRB-35 REAR BRACKET 8 2 SSC-24-160,M-141 (TYPE C) SPECIAL SUPER STIFF CLAMP E:t15W-3-. TI:3'. G:2.2',

U-BOLT DIA:IW/9'.PIN DIA: IJY, 9 2 16' 5/80 PIPE (CUT TO SUIT) SAsR 10 2 1'THK PL 17'x17' IT 1 1 2' THK PL (SEE SECTION C-CI)sis C*

12 1 2' THt PL (SEE SECTION 0-0) ',s, co *5 32-MS-2-004-1303-2 13 16 I'DIAxI5'LG SUPER HILTI KWIK BOLT (W/8'/ 2"UIN EUB)

NOTE:

TORQUE LOAD NUT FOR ITEM 8 TO 1000 FT-LBS ('10%)TOLERANCE SNUBBER MVT (EAST) SNUBBER MVT (WEST)

N/0 MV'T = 0.564' EXT N/O MV'T - 0.238' EXT NORTH j4~t MAX MOVEMENTS MAX MOVEMENTS PLAN ,I X 0-323'

_ 1.391' 1.386' 0.158-X 0.303-Y 1.146' 1.368-0.129-Z 0.297- 0.742- Z 0.178' 0.94 I 2 AGANI1ATICin" PIPE- PECIEWERS I I NITIALS I DETAIL I CLASS I ag~sAFrfYtLA>,

ans o a.,,

Cs5z tT I ,.I "I-mPSla O. o IIII8 pvvt~sa CO.4 I*C"

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11 TU ELECTRIC CPSES VN SECTION B-B DETAIL 1 GLEN ROSE, TEXAS SU or10 LOCATION PLAN LARGE BORE PIPE SUPPORT ss "ovum 4OI 0S0A t"t Sn L

I 1IS DRAWINCCPEAIFC LECTROUICAUYI -"' -2 A kA A A b - v I

,VIp-eu,,u.-ULn I* - C LrZ MS2CL0045.CPI FINAL PRINT to TXX-05006 Page 5 of 7 to TXX-05006 Page 6of7. .

WESTINGHOUSE NUCLEAR SERVICES DIVISION REPORT NO. 27MT-04 INSPECTION SERVICES PAGE I F Jk TXU SURFACE EXAMINATION DATA - -

PLANT COMANCHE PEAK UNIT 2 SKETCH TCX-2-2400 SYSTICOMP MAIN STEAM , PROCEDURE TX-ISI-70. Rev. 6 EXAMINER HARRY ACKERM EVEL 11 DATE 10115/03 EXAMINER N/A LEVEL N/A DATE NIA PT BATCH NUMBERS MT CLEANER N/A YOKE IC-8384 COIL N/A PENETRANT N/A EXAM MEDIUM ARDROX MAGNE TECH RED DEVELOPER N/A BLACK-LIGHT N/A REMOVER N/A CHECK TIME N/A SURFACE THERMOMETER N/A SURFACE THERMOMETER TU-2282 COMPONENT ID RESULTS REMARKS LIMITATON TEMP. *F 1H2 N1 DOUBLE WELDED ATTACHMENT. EXAMINED ALL SEE 806 F ACCESSIBLE AREAS. 25% NOT EXAMINED ATTACHED TU ELECTRIC REVIEW/ DATE TU ELECTRIC LEVEL III REVIEW/ DATE ANII Review / Date lyJ / t 4t1 0 ;2 Isf,

At tac'.mnent 4, to ;oTXX--05006 Page 0

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