View source for 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

{{Adams
| number = ML050800247
| issue date = 03/10/2005
| title = 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
| author name = Blevins M
| author affiliation = TXU Generation Co, LP, TXU Power
| addressee name = 
| addressee affiliation = NRC/Document Control Desk, NRC/NRR
| docket = 05000446
| license number = NPF-089
| contact person = 
| case reference number = CPSES-200500454
| document type = Inservice/Preservice Inspection and Test Report, Letter type:CPSES
| page count = 40
| project = 
| stage = Request
}}

=Text=
{{#Wiki_filter: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&deg; 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)&deg;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          &deg;                         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       &deg; 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 &#xa3;.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:             &#xa3;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:            &deg; Model:
Recordable                        ] Measured Angle:                 62&deg;             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/&deg;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&#xa2;tR           CROWN WIDTH         SS"        CROWN HEIGHT          NfI/       LONG SEAM LOCATION(S)O
                                        =  0                                  P}/O~~FiviLE   TA"L   PeF'L      'ea        bwf l                                       Sc          ..              .S   '    .A L PROFILE EXAM COMMENTS PROFILE TAKEN AT TDC COVERAGE ACHIEVED SECTION Xl    'eS        RISK INFORM(ED          A_    AUGMENTED                j        PREVIOUS DATA REVIEWED             YES       TYPE   L1-EXAMINER      Norman P. Slnlaho                        DATE       9/18/03     EXAMINER                    z      4                   DATE       ,!.
REVIEWER    Pc      -"p7 6    Y-                       DATE Io$ i+-03        REVIEWER                                               DATEJl4*~L3 ANII REVIEW     -DATE                                           f  1~o

                                                   .
Attachruent 2 to TXX-05006 .                        .. Pane 8 .of10            ;     .-'.-
REPORTNO. 27UT-01 WESTINGHOUSE NUCLEAR SERVICES DIVISION                                      PAGE       7     OF LIMITATION TO EXAMINATION TXU PLANT          COMANCHE PEAK                                                  UNIT      2             SKETCH     TCX-2-I   120 SYSTICOMP      RHR HX2-01                                                                      PROCEDURE         TX-ISI2-14. R.
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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                                 *      -t%       %e            fiLb     )rw           -S      eAc&..c; TU ELECTRIC REVIEW I DATE                TU ELECTRIC LEVEL I11REVIEW/DATE                               ANII REVIEW / DATE
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Attachnient 2 to TXX-05006                   --Page   9 of 10 REPORT NO. 27UT-01 WESTINGHOUSE NUCLEAR SERVICES DIVISION                           PAGE          OF LIMITATION TO EXAMINATION TXU PLANT        COMANCHE PEAK                                         UNIT    2         SKETCH TCX-2-1120 SYST/COMP RHR HX2-01                                                            PROCEDURE      TX4-SI-214. R. 2 EXAMINER     Norman P. Siniaho             ,        2*             LEVEL   III          DATE   9/18/03 EXAMINER      _                                                    LEVEL                DATE    _         _       _
COMPONENTID        TCX.2.1120-3AND4 RELATED TO        DMT                   D   PT               [IUT                D     VT PROVIDE SUFFICIENT INFORMATION TO DESCRIBE SIZE. LOCATION AND TYPE OF LIMITATION.
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At:tabhrmentt 2 to TXX-05006  Page 10 of 10
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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
                     )2,                ,
_L.     *_ O - I_     I     _ _.__          .     .         .. _._
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&deg; 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&sect;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&deg; 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{&deg;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<&#xa2;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
                                                                       .-     I  - -, -                                                                     T tTDI     CTTY.
                                                                         .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"
'A 0
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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