ULNRC-05183, Requests for Relief from ASME Section XI Code Inservice Examination Requirements

Requests for Relief from ASME Section XI Code Inservice Examination Requirements

ML063190472
Person / Time
Site:	Callaway
Issue date:	10/25/2006
From:	Keith Young AmerenUE
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
ULNRC-05183
Download: ML063190472 (105)

Text

AmerenUE PO Box 620 Callaway Plant Fulton, MO 65251 October 25, 2006 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Mail Stop P1-137 Washington, DC 20555-0001 Ladies and Gentlemen: ULNRC-05183 10 CFR 50.55a WAmeren DOCKET NUMBER 50-483 UNION ELECTRIC COMPANY CALLAWAY PLANT REQUESTS FOR RELIEF FROM ASME SECTION XI CODE INSERVICE EXAMINATION REOUIREMENTS Pursuant to 10 CFR 50.55a(g)(5)(iii) and/or 10 CFR 50.55a(a)(3), Union Electric Company (AmerenUE) hereby requests NRC approval of the attached relief requests (i.e., 10 CFR 50.55a requests) for the second 10-year interval of Callaway's Inservice Inspection (ISI) Program, which ended on December 18, 2005. The Code Edition(s) and Addenda applicable to Callaway's second 10-year ISI interval are ASME Section XI, "Rules for Inservice Inspection of Nuclear Power Plant Components," 1989 Edition, with no Addenda (and 1995 Edition with 1996 Addenda, as applicable).

The relief requests (identified as ISI-34, -35, -36, -37, -38, -39, -40, and -41) are provided as attachments to this letter. Each relief request constitutes an attachment except that ISI-36, -37, -38 and -39 are combined within one attachment using a tabular format due to the repetitive nature of these requests, in accordance with industry guidance (i.e., Nuclear Energy Institute white paper dated October 15, 2002, "Standard Format for Requests Pursuant to 10 CFR 50.55a").

The relief requests pertain to implementation of ASME Section XI examination requirements for welds ultrasonically examined during the latter part of the second 10-year interval. (Most of the relief requests are for examinations performed during Refuel 13 which was conducted during the spring of 2004. ISI-40 and -41 are for welds examined during Refuel 14 which was conducted during the fall of 2005.) In each case, the requested relief primarily concerns the inability to obtain complete coverage of the applicable weld(s) in strict compliance with applicable requirements, as summarily explained below.

a subsidiary of Ameren Corporation

ULNRC-05183 October 25, 2006 Page 2 ISI-34 concerns examination of identified Class 1 piping welds from the outside/accessible surface of each weld. For these examinations, in lieu of strictly conforming with the requirements of 10 CFR 50.55a(b)(2)(xv)(A) and 10 CFR 50.55a(b)(2)(xvi)(B), AmerenUE requests the use of best available techniques, as qualified through the industry's Performance Demonstration Initiative (PDI), with demonstrated best effort for such single-side examinations, when applied from the accessible side of the weld.

A similar request is being made for ISI-35 and ISI-40. ISI-35 concerns examination of a Class 2 flange-to-channel weld where the flange configuration necessitated a single-side examination, and ISI-40 is for austenitic pipe-to-valve and pipe-to-flange welds associated with the emergency core cooling system accumulators such that only single-side (50%) coverage could be attained for these welds as well. Best available techniques that have been demonstrated through PDI (for ASME Section XI, Appendix VIII, Supplement 2) are requested to be used from the accessible side of each weld.

Relief requests ISI-36, ISI-37, ISI-38 and ISI-39 address examination of reactor vessel pressure (RPV) and/or RPV nozzle welds, for which 100% examination coverage could not be obtained in accordance with IWB-2500 (for the 1989 Edition of the Code, with no Addenda) due to obstructions and/or configuration restrictions.

AmerenUE proposes to accept the percent coverage attained for these welds. Relief request ISI-41 is a similar request except that it applies to two nozzle welds associated with the reactor coolant system pressurizer.

Supporting information and justification for each request is provided in each of the applicable attachments. It may be noted that no new regulatory commitments have been made or identified pursuant to this letter and its attachments.

Please contact us for any questions you may have regarding these relief requests.

Sincerely,

-,* Keith D. Young Manager - Regulatory Affairs TBE/jdg

ULNRC-05183 October 25, 2006 Page 3 Attachments: 10 CFR50.55a Request ISI-34 10 CFR50.55a Request ISI-35 10 CFR50.55a Requests ISI-36, ISI-37, ISI-38, and ISI-39 10 CFR 50.55a Request ISI-40 10 CFR 50.55a Request ISI-41

ULNRC-05183 October 25, 2006 Page 4 cc: U.S. Nuclear Regulatory Commission (Original and 1 copy)

Attn: Document Control Desk Mail Stop P1-137 Washington, DC 20555-0001 Mr. Bruce S. Mallett Regional Administrator U.S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-4005 Senior Resident Inspector Callaway Resident Office U.S. Nuclear Regulatory Commission 8201 NRC Road Steedman, MO 65077 Mr. Jack N. Donohew (2 copies)

Licensing Project Manager, Callaway Plant Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Mail Stop 7E1 Washington, DC 20555-2738 Missouri Public Service Commission Governor Office Building 200 Madison Street PO Box 360 Jefferson City, MO 65102-0360

10 CFR 50.55a Request Number ISI-34 Proposed Alternative In Accordance with 10 CFR 50.55a(g)(5)(iii)

--Inservice Inspection Impracticality--

1. ASME Code Component(s) Affected  : I I* ..

Class 1 Pressure Retaining Piping Welds examined from the outside surface of Pressurized Water Reactors using procedures, personnel, and equipment qualified to American Society of Mechanical Engineers (ASME)Section XI, Rules for Inservice Inspection of Nuclear Power Plant Components, Appendix VIII, Supplement 2 criteria.

CODE CATEGORY B-J and C-F-1 PIPING WELDS Code Code Category Item Description Weld No.

B-J B9.11 4" Pipe to BBPCV0455B Weld 2-BB-04-F004 B-J B9.21 3" Pipe to valve PCV-456A 2-BB-02-F019 B-J B9.21 2" Pipe to pup-piece weld 2-BG-24-FW061 B-J B9.21 2" Pup-piece to pipe weld 2-BG-24-FW062 B-J B9.21 2" X2" x 3/" Tee to 2" Pipe 2-BG-24-FW067 C-F-1 C5.21 4" Straight Tee to 4" Pipe 2-BG-02-S046-A C-F-1 C5.21 4" Pipe to 4" Straight Tee 2-BG-02-S046-C Table 1, Listing of welds Note that although the welds are listed as Examination Category B-J and C-F-I in the Callaway database (as shown above), this is for administrative reasons only. In fact, the Code Item for all 8 welds is R-A, in accordance with the RI-ISI program.

2. Applicable Code Edition and Addenda

0 ASME Section XI, 1989 Edition, with no Addenda.

0 ASME Section XI, 1995 Edition 1996 Addenda.

3. Applicable Code Requirement

These welds were selected for the Risk-Informed Inservice Inspection (RI-ISI) Program

[References 8.1 and 8.2]. The specific locations selected were based upon the Degradation Mechanism (DM) evaluation, Consequence Evaluation and Expert Panel insights (Element Selection). A volumetric ultrasonic examination (UT) is the prescribed examination method.

The Revised Risk-Informed Inservice Inspection Evaluation Procedure [Reference 8.3]

Page 1 of 7

10 CFR 50.55a Request Number iSI-34 provides examination volumes based upon specific degradation mechanisms. For cases where no degradation mechanism was identified, the&thermal fatigue examination volume is chosen as a default volume. The thermal fatigue examination volume applies to all of the welds as shown in Table 2.

Weld No. Degradation Mechanism 2-BB-04-F004 NONE 2-BB-02-F019 THERMAL FATIGUE 2-BG-24-FW061 THERMAL FATIGUE 2-BG-24-FW062 THERMAL FATIGUE 2-BG-24-FW067 NONE 2-BG-02-S046-A NONE 2-BG-02-S046-C NONE Table 2, Weld list showing degradation mechanism Appendix VIII, Supplement 2 applies to Wrought Austenitic Piping Welds. 10 CFR 50.55a(b)(2)(xv)(A), requires the following examination coverage when applying Supplement 2 to Appendix VIII:

(1) Piping must be examined in two axial directions and when examination in the circumferential direction is required, the circumferential examination must be performed in two directions, provided access is available.

(2) Where examination from both sides is not possible, full coverage credit may be claimed from a single side for ferritic welds. Where examination from both sides is not possible on austenitic welds, full coverage credit from a single side may be claimed only after completing a successful single sided Appendix VIII demonstration using flaws on the opposite side of the weld.

10 CFR 50.55a(b)(2)(xvi)(B), requires that examinations performed from one side of a ferritic or stainless steel pipe weld must be conducted with equipment, procedures, and personnel that have demonstrated proficiency with single-side examinations. To demonstrate equivalency to two sided examinations, the demonstration must be performed to the requirements of Appendix VIII as modified by this paragraph and 10 CFR 50.55a(b)(2)(xv)(A).

4. Impracticality of Compliance The Final Rule requires that if access is available, the weld shall be scanned in each of the four directions (parallel and perpendicular to the weld); where scanning from one side is impractical, coverage credit may be taken for single side exams on ferritic piping.

However, for austenitic piping, a procedure must be qualified with flaws on the Page 2 of 7

10 CFR 50.55a Request Number ISI-34 inaccessible side of the weld. There are currently no qualified single side examination procedures that demonstrate equivalency to two-sided examination procedures on austenitic piping welds. Current technology is not capable of reliably detecting or sizing flaws on the far side of an austenitic weld for configurations common to US nuclear applications.

The PDI Program conforms with the Final Rule regarding single-side access for piping.

PDI Performance Demonstration Qualification Summary (PDQS) certificates for austenitic piping list the limitation that single-side examination is performed on a best; effort basis. The best effort qualification is provided in place of a complete single-ide qualification to demonstrate that the examiners qualification and the subsequent weld examination is based on application of the best available technology.

When the examination area is limited to one side of an austenitic weld, examination coverage does not comply with 10 CFR 50.55a(b)(2)(xv)(A) and proficiency demonstrations do not comply with 10 CFR 50.55a(b)(2)(xvi)(B) and full coverage credit may not be claimed.

Description of Coverage Limitations Weld No. Coverage Achieved Limitation 2-BB-04-F004 50% Pipe to valve weld with limited access to the valve side. The weld configuration obstructs 100% of one circ and one axial scan.

2-BB-02-F019 50% Pipe to valve weld with limited access to the valve side. The weld configuration obstructs 100% of one circ and one axial scan.

2-BG-24-FW061 50% The examination is limited to one side due to OD configuration. The pipe and the pup piece are of different thickness.

The circ and axial scan are 100%

obstructed from one side.

2-BG-24-FW062 83.5% Weld is obstructed on one side due to lift off in crotch area of tee. The length of the obstruction is 2.5" and obstructs 33%

of the axial scan and 33% of the circ scan on one side of the weld. All other scans are complete.

Page 3 of 7

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10 CFR 50.55a Request Number ISI-34 Weld No. Coverage Achieved Limitation 2-BG-24-FW067 83.5% Weld is obstructed on one side due to lift off in crotch area of tee. The length of the obstruction is 2.5" and obstructs 33%

of the axial scan and 33% of the circ scan on one side of the weld. All other scans are complete.

2-BG-02-S046-A 50% Pipe to Tee weld. Considered 50%

coverage due to geometry of tee.

Performed best effort examination of both sides of weld.

2-BG-02-S046-C 50% Tee to Pipe weld. Considered 50%

coverage due to geometry of tee.

Performed best effort examination of both sides of weld.

In all the examinations, a best effort examination using all available ultrasonic techniques of the obstructed portions of the weld was performed. Coverage was not claimed, however, for any portion of any examination that did not meet with Appendix VIII, PDI, and 10 CFR 50.55a requirements.

For 2-BG-24-FW062 and 2-BG-24-FW067, the examination coverage reports are attached to show how 83.5% coverage was obtained. For the remaining welds listed, single-sided access resulted in 50% coverage being obtained (i.e., the examination could claim coverage of only one side, therefore only 2 of the required 4 scan paths could be claimed for 50% total coverage.).

5. Burden Caused by Compliance There are currently no qualified single side examination procedures that demonstrate equivalency to two-sided examination procedures on austenitic piping welds. Current technology is not capable of reliably detecting or sizing flaws on the far side of an austenitic weld for configurations common to US nuclear applications.

The locations chosen for the RI-ISI program were based upon sound engineering judgment. Component-to-pipe welds were preferentially chosen because at those locations, the worse case thermal fatigue conditions exist for that pipe segment. It was known at the time of selection that a conflict existed between the required weld volume and ultrasonic inspection qualification (PDI rules). Callaway chose these locations, based upon degradation mechanism issues because it was believed that these were the right locations to examine.

Degradation Mechanism Assessment of Examination Coverage Limitation:

Currently, ASME Section XI is developing a Code Case to address issues relating to coverage of RI-ISI selected welds. The Code Case number is N-711 and is entitled Page 4 of 7

10 CFR 50.55a Request Number ISI-34 "Alternative Examination Coverage Requirements for Examination Category B-F, B-J, C-F-I, C-F-2, and R-A Piping Welds." The purpose of Code Case N-711 is to provide examination coverage requirements that are consistent with the degradation mechanism area of interest.

N-7 11, as currently written, requires the Owner to determine the damage mechanism associated with the weld. From this damage mechanism assessment an acceptable alternative extent of examination coverage is determined. The diagram on the next page (page 6) shows the areas of interest for Pipe to Component Welds which have been identified with either Thermal Fatigue (TT or TASCS) or NONE as a degradation mechanism. This diagram was developed based upon Table 2 of Code Case N-711.

Using the degradation mechanism insight of Code Case N-711 and its associated white paper, Callaway Plant could take credit for examining 100% of the area of interest for the subject welds.

Consequence Assessment of Coverage Limitation:

As an independent assessment of the impact of the examination coverage limitations on the Inservice Inspection program, Callaway Plant performed a risk impact analysis per the requirements of Section 3.7 of EPRI TR-1 12657. The calculations are based on the conservative assumption that no coverage was achieved even though, as described above, the volumes of interest for the appropriate degradation mechanism were examined. The results of the delta risk calculation are shown in the table below.

The net change in CDF and LERF as a result of removing these locations from the examination program was determined to be 1.8E-9 and 2.3E-10, respectively. This result demonstrates that the impact of not examining these locations is insignificant. Again, it should be noted that the areas of interest were examined and therefore the risk impact is in reality, orders of magnitude less than these already insignificant values.

6. Proposed Alternative and Basis for Use The best available techniques, as qualified through the Performance Demonstration Initiative for Supplement 2 with demonstrated best effort for single-side examination, are used from the accessible side of the weld.

7. Duration of Proposed Alternative Callaway Plant requests that the proposed alternative be approved for the remainder of the Second Inservice Inspection Interval.

Page 5 of 7

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10 CFR 50.55a Request Number ISI-34 Damage Mechanisms: TASCS, TT, and NONE Component Configuration:

Pipe to Component 1/4 1/4" Coverage B1 Coverage B2 Risk Addilional Informed Jinit Volume

• ~twa1~na possible Page 6 of 7

10 CFR 50.55a Request Number ISI-34

8. References 8.1 ULNRC-4392, "Callaway Plant Relief Request for Application of an Alternative to the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code Section XI Examination Requirements for Class 1 and 2 Piping Welds", dated February 16, 2001.

8.2 NRC Letter dated January 30, 2002. "Approval of Relief Request for Application of Risk-Informed Inservice Inspection Program for American Society of Mechanical Engineers Boiler and Pressure Vessel Code Class 1 and 2 Piping for Callaway Plant, Unit 1 (Callaway)."

8.3 Electric Power Research Institute (EPRI) Topical Report TR-1 12657, Revision B-A, "Revised Risk-Informed Inservice Inspection Evaluation Procedure."

Page 7 of 7

ISI DATA REVIEW COVER SHEET DATA SHEET NUMBER: zgz4 -o '--*5o S 6 pyi 7-Y EXAMINATION (CIRCLE ONE): MT PT .".

SYSTEM COMPONENT IDENT**ICATION 2) 3)

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ROUTE:

VENDOR SITE SUPERVISOR OR UE NDE EXAMINER (signature) (date)

ISI ENGINEER (sV~rature)/L (date)

ANII (sign-ature) (date)

FINAL DISTRIBUTION:

ORIGINAL - QA RECORD FILE E170.0100 COPY - ISI ENGINEER CA0493 02/05/97 Page 1 of 1 0(-?,-. EDP-ZZ-01003r,

S'SCIENTECH Exam Item: DAT,A SHEET NO.: 6226-04-30 pA(:.

2-BG-24-FW062 E: .L OFFa ISO/Drawing: ULTRASONIC CALIBRATION PRO C. NO.: 83A6226 BG-05-24 SHT. 1 REV.1 DATA SHEET REV.: 9 CHANGE NO.: N/A INSTRUMENT. SEAFtCH UNIT CALIBRATION BLOCK DAC PLOT Make: Staveley Make: KBA Type: MSEB4E No.: Component Model: Sonic 136 Serial No. 57463-1611 Tr'0.54 Dia. 2" Serial No 136-876K Size: 3.5mm X 10rnm Temperature:81 0 F Daily Linearity- Yes Frequency: 4 MHz Thermometer S/N : 230999 VEL: 228 nrdts Delay: 1.02.in. Mode: Long.

Range: 1.0 in. Rep. Rate: 4KHZ Nom. Angle: 0 Pulser/Damping:126 nS / 5000 Measured Angle: N/A CALIBRATION Freq.: 5 MHz Filter. 1 - Cable Type: RG-1 74/u 0° X Axial Circ. Q Mode: P/E Reject: OFF Cable Length: 6' Ref. Sensitivity: *dB Wedge: N/A Metal Path 0 Depth 0 Dynamic Cal. Verified: N/A Remarks: N/A Remarks: maintained BR @ 80% FSH Each Major Screen Div. .10" Remarks: Component ID 5.4 SD On component COLJPLANT Remarks: N/A Brand: Ultragel II Batch No.: 96125 Cal. Checks Time INITIAL CAL.: 1030 INTERMEDIATE: N/A INTERMEDIATE: N/A INTERMEDIATE: 1600 FINAL CAL.:

ADDITIONAL COMMENTS None EXAM 1; WINE EL: , 11. DATE: 4/23/04 1: .V W

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LEVEL: ZxrZ DATE: V-0 2: 60" LEVEL: DATE: 2: LEVEL:_ DATE:

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[CALIBRATION No.: SS-56 BLOCK DAC PLOT Model: Sonic 136 Serial No.: 24716 "T" .344" Dia. 2.0' Serial No.: 136 - 876K . Size: 0.25" Temperature: 73°F Daily Lineaity, Yes Frequency: 2.25 MHz Thermometer S/N : 230999 VEL: 0.125;niijs . Delay:ý.0..314in Mode: Shear Range: 1.0in Rep. Rate: 4Khz Nom. Angle: 450 Pulser/Damping: 222 nS / 500 Measured Angle: 450 CALIBRATION Freq.: 2.25 MHz Filter: 1 Cable Type: RG-174/u 0. 0 Axial [ Circ. 0 Mode: P/E Reject: OFF Cable Length: 6' Ref. Sensitivity: 39.0 dB Wedge: MSWQC Metal Path [ Depth 0 Dynamic Cal. Verified: N/A Remarks: N/A Remarks: N/A Each Major Screen Div. = 0.10" Remarks: ID Notch 4.2 SD at 80%

COUPLANT Remarks: N/A Brand: Ultrarel If Batch No.: 96125 Cal. Checks Time INITIAL CAL.: 1020 INTERMEDIATE: N/A INTERMEDIATE: N/A INTERMEDIATE: N/A FINAL CAL.: 1610 ADDITIONAL COMMENTS None EXA 1: LEVEL: 11 DATE: 4/23/04 LEVEL:____ DATE:______

2: LEVEL: DATE: 2: LEVEL:_ DATE:____

3: LEVEL: DATE:

-SCIENTECH Exam Item: DATA SHEET NO.: 6226-04-30 2-BG-24-FW062 PAGE: L OF f, ISO/Drawing: ULTRASONIC CALIBRATION PROC. NO.: 83A6226 BG-05-24 SHT. 1 REV.1 REV.: 9 DATA SHEET CHANGE NO.: N/A INSTRUMENT. SEARCH UNIT CALIBRATION BLOCK flAC~ Pt OT Make: Staveley Make: KBA Type: Gamma No.: SS-14 Model: Sonic 136 Serial No.: 24716 T".531 " Dia. 3.0" Serial No.: 136 - 876K Size: 0.25" Temperature: 731F Daily Linearity: Yes Frequency: 2.25 MHz Thermometer S/N : 230999 VEL: 0.1251n/Us Delay- 0..314in Mode: Shear Range: 1.5 in Rep. Rate: 4Khz Nom. Angle: 45 Pulser/Damping: 222 nS / 500 Q Measured Angle: 450 CALIBRATION Freq.: 2.25 MHz Filter. 1 Cable Type: RG-174/u 0. 0 Axial 0 Circ. C Mode: P/E Reject: 'OFF Cable Length: 6' Ref. Sensitivity: 39.6 dB Wedge: MSWQC Metal Path 0 Depth C Dynamic Cal. Verified: N/A Remarks: N/A Remarks: N/A Each Major Screen Div. = 0.15" Remarks: ID Notch 4.6 SD at 80%

COUPLANT Remarks: N/A Brand: Ultragel II Batch No.: 96125 Cal. Checks Time INITIAL CAL.: 1020 INTERMEDiATE: N/A INTERMEDIATE: N/A INTERMEDIATE: N/A FINAL CAL: 1610 ADDITIONAL COMMENTS None RE W LEVEL: -71 DATE: 2!0y' 2: LEVEL: DATE:_____

3: LEVEL: DATE:

SSCIENTECH Exam Item: DATA SHEET NO.: 6226-04-30 2-BG-24-FW062 PAGE: _OF ISO/Drawing: ULTRASONIC CALIBRATION PROC. Ne.: 83A6226 BG-05-24 SHT. 1 REV.1 REV.: 9 DATA SHEET CHANGE NO.: N/A INSTRUMENT SEARCH UNIT CALIBRATION BLOCK DAC PLOT Make: Staveley Make: KBA Type: Comp G No.: SS-56 Model: Sonic 136 Serial No.: 0OWFNK T" .344" Die. 2.0" Serial No.: 136 - 876K Size: 0.25" Temperature: 73°F Daily Unearity Yes Frequency: 2.25 MHz Thermometer S/N : 230999 VEL: 0.123/n/is Delay: 0.413in Mode: Shear Range: 2.5in Rep. Rate: 4Khz Nom. Angle: 70 Pulser/Damping: 222 nS /500 0 Measured Angle: 690 CALIBRATION Freq.: 2.25 MHz Filter: 1 -- Cable Type: RG-174/u 0o El Axial, 0 Circ. El Mode: P/E Reject: OFF Cable Length: 6' Ref. Sensitivity: 54.0 dB - Wedge: MSWQC Metal Path 0 Depth El Dynamic Cal. Verified: N/A Remarks: N/A Remarks: N/A Each Major Screen Div. = 0.25" Remarks: ID Notch 5.8 SD at 80%

COUPLANT Remarks: N/A Brand: Ultragel II Batch No.: 96125 Cal. Checks Time INITIAL CAL.: .- 1035 INTERMEDIATE: N/A INTERMEDIATE: N/A INTERMEDIATE: N/A FINAL CAL.: 1620 ADDITIONAL COMMENTS None EXAMIN~*/~ RE EW 8 1 N* LEVEL: 11 DATE: 4/23/04 LEVEL: .7 DATE: E 2: -*,.,/ LEVEL:

DATE: 2: LEVEL: DATE:

3: LEVEL:

LSCIENTECH INCOMPLETE EXAMINATION REPORT REPORT NO: 2.-0 -o PAGES OF PROCEDURE: h A" -Z REVISION:_

Plant Unit: Ca 4 t2aiatI WeldNo.: 2e '-t~ System: B Component Material:..S Calibration Blk. -5U/'

.fY-/5 / Component Thickness 0,5*7 Configuration: P,19 *'.hti ASME Code Class: /

Examination Conditions: Qelgj is Ot2 Lf' Interfering Conditions: 433%/,Js

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Partial Examination Done: Yes No Examination Angle Affected:

100° WRV iW';ý0 Axial RýOther 7'001e o 00 Base Material 0 450 Circ o Other Alternate Method Recommended: Yes_ _ _ No Explain: U 7~5"ti'r WA-&Ie Wits ogecr-re~rl (>o-y PA P42 Prepared By: Date:_________________

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2 LEVEL DATE REVIEWERS 1 LEVEL DATE 2 LEVEL DATE 3 LEVEL DATE

ISI DATA REVIEW COVER SHEET DATA SHEET NUMBER: 6 -zz -oy,-w, S 6tt474' EXAMINATION (CIRCLE ONE): MT PT SYSTEM COMPONENT IDENTIFICATION

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VENDOR SITE SUPERVISOR OR UE NDE EXAMINER (signature) (date)

ISI ENGINEER aonature)r/)/J ANII (date)

(signature)

FINAL DISTRIBUTION:

ORIGINAL - QA RECORD FILE E170.0100 COPY - ISI ENGINEER CA0493 02/05/97 Page 1 of 1 EDP-ZZ-01003/

OSCIENTECH Exam Item: DATA SHEET NO.: 6226-04-31 2-BG-24-FW067 PAGE: L OF ISO/Drawing: ULTRASONIC CALIBRATION PROC. NO.: 83A6226 BG-05-24 SHT, 1 REV.,1 REV.: 9 DATA SHEET CHANGE NO.: N/A INSTRUMENT SEARCH UNIT CALIBRATION BLOCK DAC PLOT Make: Staveley Make: KBA Type: MSEB4E No.: Component Model: Sonic 136 Serial No. 57463161.1 '17,54 Dia,2" Serial No 136-876K Size: 3.5mm X 10mm Temperature:81 OF Daily Linearity: Yes Frequency: 4 MHz Thermometer S/N : 230999 VEL: 228 In/ps Delay: 1.02 in. Mode: LONGITUDINAL Range: 1.0 In. Rep. Rate: 4KHZ Nom. Angle: 0 0 Pulser/Damping:126 nS / 5000 Measured Angle: N/A CALIBRATION Freq.: 5 MHz Filter 1 - Cable Type: RG-174/u 0° X Axial Circ. 0 Mode: P/E Reject: OFF Cable Length: 6' Ref. Sensitivity: 46 dB Wedge: N/A Metal Path 0 Depth 0 Dynamic Cal. Verified: N/A Remarks: N/A Remarks: N/A Each Major Screen Div. .10" Remarks: Component ID 5.4 SD @ 80%

COUPLANT Remarks: N/A Brand: Ultragel II Batch No.: 96125 Cal. Checks Time INITIAL CAL.: 1030 INTERMEDIATE: N/A INTERMEDIATE: N/A INTERMEDIATE: 1600 FINAL CAL.:

ADDITIONAL COMMENTS None 1: LEVEL'.1 DATE: 4/23/04 R LEVEL:_____ DATE: /e-/.

2:____ LEVEL:______ DATE:_ 2: LEVEL: DATE:

3: LEVEL: DATE:

SSCIENTECH Exam Item: DATA SHEET NO.: 6226-04-30 2-BG-24-FW067 PAGE: Z OF C.

ISO/Drawing: ULTRASONIC CALIBRATION PROC. NO.: 83A6226 BG-05-24 SHT. 1 REV.1 REV.: 9 DATA SHEET CHANGE NO.: N/A INSTRUMENT SEARCH UNIT CALIBRATION BLOCK DAC PLOT Make: Staveley Make: KBA Type: Gamma No.: SS-56 Model: Sonic 136 Serial No.: 24716 1" .344" Die. 2.0" Serial No.: 136 - 876K Size: 0.25" Temperature: 73°F Daily Linearity: Yes Frequency: 2.25 MHz Thermometer S/N : 230999 VEL: 0.125 in/ps Delay: 0.314 in Mode: Shear Range: 1.0in Rep. Rate: 4Khz Nom. Angle: 45 Pulser/Damping: 222 nS / 500 0 Measured Angle: 450 CALIBRATION Freq.: 2.25 MHz Filter: 1 Cable Type: RG-174/u 0° [3 Axial 10 Circ. 0 Mode: P/E Reject OFF Cable Length: 6' Ref. Sensitivity: 39.0 dB Wedge: MSWQC Metal Path 0 Depth 0 Dynamic Cal. Verified: N/A Remarks: N/A Remarks: N/A Each Major Screen Div. = 0.10" Remarks: ID Notch 4.2 SD at 80%

COUPLANT Remarks: N/A Brand: Ultragel II Batch No.: 96125 Cal. Checks Time INITIAL CAL.: 1020 INTERMEDIATE: N/A INTERMEDIATE: N/A INTERMEDIATE: N/A FINAL CAL.: 1610 ADDITIONAL COMMENTS None LEVEL: ry- DATE%07-1/-,

2: LEVEL: DATE:

3: LEVEL: DATE:

SSCIENTECH Exam Item: DATA SHEET NO.: 6226-04-30 2-BG-24-FW067 PAGE: 7 OF _ _

ISO/Drawing: ULTRASONIC CALIBRATION PROC. NO: 83A6226 BG-05-24 SHT. 1 REV.1 REV.: 9 DATA SHEET CHANGE NO.: N/A INSTRUMENT SEARCH UNIT CALIBRATION BLOCK DAC PLOT Make: Staveley Make: KBA Type: Gamma No.: SS-14 - - - .4.- .4.-4-4 - 4- -

Model: Sonic 136 Serial No.: 24716 T" .531 " Dia. 3.0" Serial No.: 136 - 876K Size: 0.25" Temperature: 73°F Daily Linearity: Yes Frequency: 2.25 MHz Thermometer S/N : 230999 VEL: 0.125 in/ls Delay: 0.314 in Mode: Shear Range: 1.5 in Rep. Rate: 4Khz Nom. Angle: 45 Pulser/Damping: 222 nS / 500 Q Measured Angle: 45* CALIBRATION Freq.: 2.25 MHz Filter: 1 Cable Type: RG-174/u 0o D Axial J@ Circ. 0]

Mode: P/E Reject: OFF Cable Length: 6' Ref. Sensitivity: 39.6 dB Wedge: MSWQC Metal Path [ Depth El Dynamic Cal. Verified: N/A Remarks: N/A Remarks: N/A Each Major Screen Div. = 0.15" Remarks: ID Notch 4.6 SD at 80%

COUPLANT Remarks: N/A Brand: Ultragel II Batch No.: 96125 Cal. Checks Time INITIAL CAL.: 1025 INTERMEDIATE: N/A INTERMEDIATE: N/A INTERMEDIATE: N/A FINAL CAL.: 1615 ADDITIONAL COMMENTS None REV ER LEVEL: II DATE: 4/23/04 LEVEL:_ _ DATE: Y,1...

2:- ( -/ -LEVEL: DATE: 2: LEVEL: DATE:

3: LEVEL: DATE:

4

SSCIENTECH Exam Item: DATA SHEET NO.: 6226-04-31 2-BG-24-FW067 PAGE: l OF ISO/Drawing: ULTRASONIC CALIBRATION PROC. NO.: 83A6226 BG-05-24 SHT. 1 REV.1 REV.: 9 DATA SHEET CHANGE NO.: N/A INSTRUMENT- SEARCH UNIT CALIBRATION BLOCK DAC PLOT Make: Staveley Make: KBA Type: Comp G No.: SS-56 Model: Sonic 136 Serial No.: OOWFNK -T".344" Dia. 2.0" Serial No.: 136 - 876K Size: 0.25" Temperature: 73°F Daily Linearity: Yes Frequency: 2.25 MHz Thermometer S/N : 230999 VEL: 0.123 In/ps Delay: 0.413 in Mode: Shear Range: 2.5in Rep. Rate: 4Khz-- Nom. Angle: 70 0 Pulser/Damping: 222 nS / 500 Measured Angle: 690 CALIBRATION Freq.: 2.25 MHz Filter: 1 . Cable Type: RG-174/u 0o 0 Axial 0 Circ. 0 Mode: PIE Reject: OFF Cable Length: 6' Ref. Sensitivity: 54.0 dB Wedge: MSWQC Metal Path [ Depth 0 Dynamic Cal. Verified: N/A Remarks: N/A Remarks: N/A Each Major Screen Div. = 0.25" Remarks: ID Notch 5.8 SD at 80%

COUPLANT Remarks: N/A 91 Brand: Ultragel Batch No.: 96125 Cal. Checks Time INITIAL CAL.: 1035 INTERMEDIATE: N/A INTERMEDIATE: N/A INTERMEDIATE: N/A FINAL CAL.: 1620 ADDITIONAL COMMENTS None 1:/'- '-f '-, LEVEL: 11 DATE: 4/23/04 2: LEVEL:____ DATE: z..

2: hh r LEVEL: 11 DATE: 4/23/04 LEVEL: DATE:

3: LEVEL: DATE:

SSCIENTECH INCOMPLETE EXAMINATION REPORT REPORT NO: 72Z6-o '1-3/

PAGE 5- OF 6 PROCEDURE: 6"--2 REVISION:.,

Plant Unit: (2ll2ac

/4 WeldNo.: A-846'2-FY-P*wO7 System: 13 Component Material: .. *S Calibration Blk. 0-5'Z f5$-ly Component Thickness . i5T Configuration: PIP 6 tier ASME Code Class: /

Examination Conditions: LJ'jd i5 a 2' P PL, A* 9-e Interfering Conditions: P./A;J d6 rf,?r/'e ' oj -;- .Stn ao._4 re, OP At,

-71 A &,u O5 CA !33% 0 oqe-A / Sca $'I c".33% o4e ejS £ct# 4 140 &e,.-sc& 'iSa P fkte /- e

• -* , Conele/f:: (ý0o :/100 47167ý)-?*Y -. °.

Sketch Attached: Yes_ _ No Estimate of total % completed: *, 5" %

Partial Examination Done: Yes ' No Examination Angle Affected:

o 00 WRV O-C50 Axial O-Other 'SO 0-0-'-

o30* Base Material 3 45* Circ 0 Other Alternate Method Recommended: Yes_ _ No 9

Explain: 6 7t 54a, w4L e w4S log e- C Ra AAP 01 et Prepared By: )4y~,g(Date: Y12710Y Reviewed By: Date: 3-5

"OSCIENTECH DATA SHEET: *2-0_ oY-I3 PAGE:_j OF EXAM ITEM:F4_----*-' O4 7 ISOMWG. NO: _._y- 06,-.zY FLOW' "*

• ~

Iv

• SL .5* " , .'p" .35" 3* . 36".3 EXAMINERS 1 Z LEVEL LEVEL DATE DATE REVIEWERS I LEVEL DATE v'a-lw 2 ___________________ DATE LEVEL 3 DATE

10 CFR 50.55a Request Number ISI-35 Proposed Alternative In Accordance with 10 CFR 50.55a(g)(5)(iii)

--Inservice Inspection Impracticality--

1. ASME Code Component(s) Affected Class 2 Pressure Retaining Welds in Pressure Vessels examined from the outside surface.

CODE CATEGORY C-A PRESSURE RETAINING WELDS IN VESSELS Code Description Weld No.

Item C1.10 RHR Heat Exchanger A Bonnet Flange 2-EEJO0A-SEAM-1-W to Channel Weld

2. Applicable Code Edition and Addenda

• ASME Section XI, "Rules for Inservice Inspection of Nuclear Power Plant Components," 1989 Edition, with no Addenda.

3. Applicable Code Requirement

100% weld coverage in accordance with Figure No. IWC-2500-1.

4. Impracticality of Compliance The stainless steel flange configuration caused the examination to be single-sided. The examination was further obstructed by flange bolting. An additional 45-degree full-vee shear wave examination and a 45-degree half-vee longitudinal wave examination were performed to address the flange side of the weld. Conservatively, however, no credit was taken for the flange side of the weld because single-sided examinations of austenitic welds have not been adequately demonstrated in accordance with the requirements of ASME Section XI Appendix VIII. A copy of the examination report for the weld is attached.

5. Burden Caused by Compliance There are currently no qualified single-side examination procedures that demonstrate equivalency to two-sided examination procedures on austenitic welds. Current technology is not capable of reliably detecting or sizing flaws on the far side of an Page 1 of 2

10 CFR 50.55a Request Number ISI-35 austenitic weld for configurations common to US nuclear applications.

Plant modifications or replacement with components designed to allow for complete coverage would be needed to meet the ASME Code requirements. This would impose a considerable burden to Callaway Plant.

6. Proposed Alternative and Basis for Use The best available techniques, similar to those qualified through the industry's Performance Demonstration Initiative for Supplement 2 with a demonstrated best effort for single-side examination, are used from the accessible side of the weld.

7. Duration of Proposed Alternative Callaway Plant requests that the proposed alternative be approved for the remainder of the Second Inservice Inspection Interval.

Page 2 of 2

SCIENTECH INCOMPLETE EXAMINATION REPORT REPORT NO: ,2Z6 -o Y-/o PAGE 5* OF /0 PROCEDURE: k-3,4 2z-REVISION: P ,!-_/

PlantUnit: ________ Weld No.: 2 "*6ToI,,-S, 1 9f i, System: E.r Component Material: .r. . Calibration Blk. SY- 7,2. Component Thickness o.RS":

Configuration: the, _ '.Ve//

el o ,AD re &ed ASME Code Class: 2 Examiunation Conditions: Ytfq "le/ 4 5A,,414Z t/ j' ,-&If tJe .STiO /0 TO a& Z,/ ~~4e Interfering Conditions: F.nK,, !r i4" J TA/,'*,

. dhe 'I&&A*,/tatq eamQR k,-3A,,,,. t, e/ /i Sketch Attached: Yes_ _ No Estimate of total % completed: 0Y"/.

Partial Examination Done: Yes_____ No Examination Angle Affected:

o 00 WRV 0 Axial 0 Other o 00 Base Material MIS* Circ 0 Other Alternate Method Recommended: Yes &" No Explain: e3;3 t eGA-ft -- A-a-.. oAie F2cr s 1lpl epý We/sý iv, s-0 C Y9- - 9 Reviewed By: -ate ISl 35 Attachment 1 Page 1 of 6

wAmwren IIE Exam Item: Incomplete Exam Calculation Sheet Data Sheet No: 6226-04-10 2-EEJ01A-SEAM-1-W Class 1 & 2 Pressure Vessels Page  !. of /'

ISO/Drawing Procedure No: 83A6226 EEJ01A Sh. 1 Rev. 0 Rev.: 8 STEP ONE: Calculate Circumference (when required)

Outside Diameter Circumference Rt x 4611 = 144.5 STEP TWO: Calculate Total Code Required Exam Volume Square Inches Circumference Total Cubic Inches Width of WRV Thickness of WRV Required or Length Required (CRV) 1.85 x 0.95 = 1.76 x 144.5 = 254.3 STEP THREE: Calculate Total Volume with No 00 Coverage A) Profile:

Length of Obstructed Area Square Inches with No Coverage Cubic Inches 1 N/A x N/A = N/A 2 N/A x N/A = N/A 3 N/A x N/A = N/A 4 N/A x N/A = N/A 5 N/A x N/A = N/A 6 N/A x N/A = N/A 7 N/A x N/A - N/A Total N/A B)

Total Cubic Inches CRV Percent (Step 3A) (Step 2) Incomplete N/A + N/A - N/A%

• Reference Applicable Code Section ISI 35 Attachment 1 Page 2 of 6 1

~'Aiiwren lIE- Z-cdenalA -5;Ag -m joRýe f/ V STEP FOUR: Calculate Total Volume with No 450 J. Shear Coverage A) Profile Length of Obstructed Area Square Inches with No Coverage Cubic Inches 1 144.5 x 0.88 = 127.2 2 N/A x N/A - N/A 3 N/A x N/A - N/A 4 N/A x N/A - N/A 5 N/A x N/A - N/A 6 N/A x N/A = N/A 7 N/A x N/A - N/A Total 127.2 B)

Total Cubic Inches CRV Percent (Step 4A) (Step 2) Incomplete 127.15 254.3 = 50%

STEP FIVE: Calculate Total Volume with No 450 = Shear Coverage A) Profile Length of Obstructed Area Square Inches with No Coverage Cubic Inches 1 144.5 x 0.88 = 127.2 2 N/A x N/A = N/A 3 N/A x N/A - N/A 4 N/A x N/A - N/A 5 N/A x N/A = N/A 6 N/A x N/A = N/A 7 N/A x N/A = N/A Total 127.2 B)

Total Cubic Inches CRV Percent (Step 5A) (Step 2) Incomplete 127.2 254.3 = 50.0%

ISI 35 Attachment 1 Page 3 of 6 2

'ý*2Amereii LI- ~ ~ ~ - /-

STEP SIX: Calculate Total Volume with No 450 . Long Coverage A) Profile Length of Obstructed Area Square Inches with N[o Coverage Cubic Inches 1 52.8 x 0.32 16.9 2 91.7 x 0.78 71.53 3 N/A N/A N/A 4 N/A N/A N/A 5 N/A x N/A N/A 6 N/A X N/A N/A 7 N/A X N/A N/A Total 88.43 B)

Total Cubic Inches CRV Percent (Step 6A) (Step 2) Incomplete 88.43 + 254.3 = 34.8%

STEP EIGHT: Summery:

Percent Step 38 Total Volume Achieved with 00 Scan N/A% (100%- N/A %)

Percent Step 4B Total Volume Achieved with 450 1 Scan Shear 50.0% (100%- 50._0%)

Percent Step 5B Total Volume Achieved with 450 = Scan Shear 50.0% (100% - 50.0%)

Percent Step 6B Total Volume Achieved with 450 _ Scan LONG 65.2 % (100%- 34._8 %)

Composite 55%

ISI 35 Attachment 1 Page 4 of 6 3

Da.+'LYee ~

Z'CeT01 ~q - 5E- &

e 17 f M&~r 0, -

9

~OeL11d 9~ AJ-A 4tVO ,~Ln TAe. -I- i3 /e GL4e i-o L.A'e/)'er~,

sds4C*IJI Tkie 0A e li ISI 35 Attachment 1 Page 5 of 6

Z -elpj,L)1,4.

II CUM Q

?F 87-a.

i" ABr 1//LYf' plot . L~t't '<L ji r-Llq.'nF/cv7 ot toA 44 eptA eSA' a3t) volIL,.wma 4ot excknt-d-e w /-9 . 9S7L

/E!L S ,117g lI t ~Fyo,,06" ISI 35 Attachment 1 Page 6 of 6

10 CFR 50.55a Request Numbers ISI-36, ISI-37, ISI-38, and ISI-39 Repetitive/Duplicative 10 CFR 50.55a Request (Tabular format used for repetitive/duplicative requests.)

1. ASME Code Components Affected Refer to Table 1, Columns 1 and 2.

2. Applicable Code Edition and Addenda

ASME Section XI, "Rules for Inservice Inspection of Nuclear Power Plant Components,"

1989 Edition, with no Addenda.

3. Applicable Code Requirement

Refer to Table 1, Column 3.

4. Impracticality of Compliance A. The Lower Torus to Dollar Plate weld is positioned at about the same elevation as the peripheral bottom-mounted instrumentation (BMI) tubes. Scanning was conducted between obstructing penetrations with the scan boundaries maximized by visually assisted position of the exam head so that scan starts and stops were as close to the tubes as tool configuration allowed. Final examination coverage was estimated at 74.2%.

B. The Lower Shell to Lower head circumferential weld is limited in scanning due to the proximity of six core support lugs. Scanning was conducted between and below the obstructing lugs with the scan boundaries maximized by visually assisted positioning of the exam head so that scan starts and stops were as close to the support lugs as tool configuration allowed. Final examination coverage was estimated at 77.3%.

C. The Inlet Nozzle Safe-end to Elbow welds are limited in examination coverage for the detection of axial flaws (circumferential scans), as per the PDI-issued Performance Demonstration Qualification Summary (PDQS) document, due to the ID configuration (field weld root geometry). Areas of limitation were fully examined by supplemental visual (enhanced VT) and Eddy Current techniques. Final ultrasonic examination coverage was estimated at 50.0% (since coverage credit is taken for axial scans only).

D. Callaway Plant obtained 100% coverage for reflectors parallel to the weld seam by a combination of radial scan paths (Star scans) and scans from within the nozzle bore (Bore scans). However, the proximity of the nozzle protrusion or boss to the Outlet Nozzle to Shell welds limits the parallel scans from the vessel ID (Tangential scans).

Because of this, limited coverage of 58.6% was achieved examining for transverse reflectors. Combined final ultrasonic examination coverage was estimated at 79.3%.

Page 1 of 3

10 CFR 50.55a Request Numbers ISI-36, ISI-37, ISI-38, and ISI-39

5. Burden Caused by Compliance The design configuration/restriction makes the Code-required examination coverage requirements impractical. Plant modifications or the replacement of components designed to allow for complete coverage would be needed to meet the ASME Code requirements. This would impose a considerable burden to Callaway Plant.

6. Proposed Alternative and Basis for Use Callaway proposes to accept the percent coverage obtained on the subject examinations.

The best-effort examination approach, in addition to the other considerations or actions described below, provides reasonable assurance of safety and/or structural integrity.

" For the Inlet Nozzle Safe-end to Elbow welds, Callaway performed supplemental eddy current and enhanced visual examinations.

• The reactor vessel shell welds are constructed of low alloy steel, and the Inlet Nozzle Safe-end to Elbow welds are constructed of stainless steel materials. These materials have been shown to be resistant to stress corrosion cracking in pressurized water environments. There is no degradation mechanism, other than fatigue, active in the subject welds that would cause weld failure.

" VT-2 examinations performed in conjunction with system pressure testing each refueling, along with reactor coolant system leak rate limitations imposed by the plant's Technical Specifications, as well as containment atmospheric particulate radioactivity monitoring, provide additional assurance that a leak would be detected prior to any gross failure occurring.

7. Duration of Proposed Alternative Callaway Plant requests the above Proposed Alternative be accepted for the duration of the second inservice inspection interval.

Page 2 of 3

10 CFR 50.55a Request Numbers ISI-36, ISI-37, ISI-38, and ISI-39 Table 1 - Repetitive/Duplicative Requests Requested in Accordance with 10 CFR 50.55a(g)(5)(iii),

Inservice Inspection Impracticality Second 10-Year Interval - Inservice Inspection Program ASME Code Section XI, "Rules for Inservice Inspection of Nuclear Power Plant Components," 1989 Edition, with no Addenda

1. 2. 3. 4. 5. 6. 7.

ASME CODE PROPOSED COMPONENT APPLICABLE CODE ALTERNATIVE DURATION OF REQUEST (AREA OR WELD COMPONENT ID REQUIREMENT (100% IMPRACTICALITY BURDEN CAUSED AND BASIS FOR PROPOSED NUMBER TO BE EXAMINED) NO. WELD COVERAGE) OF COMPLIANCE BY COMPLIANCE USE ALTERNATIVE ISI-36 Lower Torus to 2-RV-102-151 Exam Category B-A See Paragraph See Paragraph See Paragraph See Paragraph Dollar Plate Item No. B1.21 4.A 5 6 7 Weld Fig. IWB-2500-3 74.2%

Volume Coverage ISI-37 Lower Shell to 2-RV-101-141 Exam Category B-A See Paragraph See Paragraph See Paragraph See Paragraph Lower Head Item No. B1.21 4.B 5 6 7 Circumferential Fig. IWB-2500-3 Weld 77.3%

Volume Coverage ISI-38 Inlet Safe-End to 2-BB-01-Fl02 Exam Category B-J See Paragraph See Paragraph See Paragraph See Paragraph Elbow Welds 2-BB-01-F202 Item No. B9.11 4.C 5 6 7 2-BB-01-F302 Fig. IWB-2500-8 2-BB-01-F402 50%

Volume Coverage ISI-39 A, B, C, D Outlet 2-RV-107-121-A Exam Category B-D See Paragraph See Paragraph See Paragraph See Paragraph Nozzle to Shell 2-RV-107-121-B Item No. B3.90 4.D 5 6 7 Welds 2-RV-107-121-C Fig. IWB-2500-7(a) 2-RV-107-121-D 79.3%

Volume Coverage Page 3 of 3

WesDyne International Reactor Vessel Weld Results Summary CALLAWAY UNIT #1 WELD NO. W5 DESCRIPTION Lower Torus to (RV-102-151) Dollar Plate Weld LIMITATIONS NO D YES Lx] Penetration Arrangement 74.2% Combined Coverage RESULTS RIJ NO. OF INDICATIONS 0 STATUS N/A EXAM DOCUMENTATION INDICATION DOCUMENTATION Fj- ANALYSIS LOG D] ASSESSMENT SHEET

[X ACQUISITION LOG ~ PARAGON HARD COPY

[x] SCAN PRINTOUT F] OTHER ( specify )

-] COVERAGE BREAKDOWN e---A WESDYNE ANALYST - týr S

CALLAWAY DIRECTION / ORIENTATION RPV COVERAGE ESTIMATE BREAKDOWNS PARALLEL SCANS CCW / CW PERP. SCANS UP/DN ITEM / AREA WELD NO. 2-RV-102=151 Lower Torus to Dollar Plate weld BEAM ANGLES BEAM 450 L Dual 450 L Single 450 Shear DIRECTION WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME CCW 73 73 73 73 73 73 ___

CW 73 73 73 73 73 73 UP 75.3 75.3 75.3 75.3 75.3 75.3 DOWN 75.3 75.3 75.3 75.3 75.3 75.3 Combined Average = 74.2%

ANALYST <ý;Iýý

Reclassified as Westinghouse Non-Proprietary Class 3 October 2006 We.unghoiz. Propriatar Clem 2C BM Tuboq) Eloverhon gem scan Seen gem Scan Number pTpd Stort Stut t" Stop Long&

Tube) (VowssQ MThe3 (VosweQ (TWO) 1 401.25 400.2 7.05 416.17 16.02 0.07 2,3 400.76 40.0M 7.63 41716 17.04 0.21 4 .5 400.01 407.62 7.01 417.16 17.15 9.34 60,7 300.0 407.39 7.70 4106.3 17.23 G.4 S 308.35 400A 7.7 415.28 17.33 9.83 0,10 307.92 405. 7.07 415.20 17.37 1.7 11.12 307.5 405.13 7.63 414B6 17.30 9.76 13 386.19 403.79 7.60 413.01 17.42 0.5

14. 15 304.62 402.4 7.56 412.5 17.56 10.02 411, 17 394.44 401.00 7.55 412.06 17.64 10.09 ltru 21

-- 394.0 401.55 7.55 411.56 17.M0 10.13 17 O 31 oT vo22.23 24 Vim 27 393.12 300.82 4400b 300.30 7.54 7.04 410Oil 408.72 17.75 17.9 10.11 10.36 021 29 300.37 397.62 7.45 400.3 17.03 10.,4 23 20.30 356.94 390.32 7.30 400.07 .16.03 10.05 006 013 31 367.5 30416 7.38 405.82 16.12 10.74 012 03 - 3.33 36653 30.S7 7.34 404.72 16.17 10.83 35 27 - L4 34.35 365.57 3028 7.31 403.74 10.10 10.66 20- 308.37 305.06 392.35 7.29 403.36 10.20 11 15 + OR 5 38MU40 303.53 380.70 7.25 401.02 10.30 11.14 29 41.42 393.03 300.27 7.24 401.46 18.43 11.10 11 4 00 029 43,44 370.76 365.0 7.14 387.52 18.76 11.62 0, 45.iu47 376.22 355.32 7.1 387.01 16.79 11.00 4146.40 377.00 384.1 7.01 306.0 16.61 i11.

503,51 376.53 303.53 7.0 385630 18.e6 11.86 52 thru 54 373.02 350.47 0.65 392.60 10.04 12.10 0 556hiu 50 371.01 378.56 0.67 391.06 10.25 12.30 180" CALLAVAY RVISI 2004 - SCP WesDyne InternrtioncA Dott'tom Head DotLar/BMI Tube Scans EXAMINATION PROGRAM PLAN OF' 21

Reclassified as Westinghouse Non-Proprietary Class 3 October 2006

( (

(

Wastinghow Praprietary Clam 2C IDEAL SCAN INPUTS (AREAS OF NO OBSTRUCTION) 382.51' to Top of Flange VESSEL INDEX SIZE I

Perp and Paraltel Scans = 0,325" (0.5') 46.3' Bottom Parattet I

-'45.6" Bottom Perp WELD 2-RV-102-151 CALLAWAY RVISI 2004 - SCP CALCULATION OF WesDyne In'ternationat BOTTOM oand TOP POSITIONS ,LOWER TORUS TO DOLLAR PLATE EXAMINATION PROGRAM PLAN ALL w ,l I SHEET 21 OF.2.

1=v.qQ . ISHEET 21 OF 21

WesDyne International Reactor Vessel Weld Results Summary CALLAWAY UNIT #1 WELD NO. W4 DESCRIPTION Lower Shell to Lower Head (2-RV-101-141) Circ. Weld LIMITATIONS NO D YES[ Core Support Lugs 77.3% Combined Coverage RESULTS NO. OF INDICATIONS 1 STATUS Code Allowable EXAM DOCUMENTATION INDICATION DOCUMENTATION FANALYSIS LOG WX ASSESSMENT SHEET X-] ACQUISITION LOG X-] PARAGON HARD COPY

-X]SCAN PRINTOUT D] OTHER ( specify)

FX COVERAGE BREAKDOWN WESDYNE ANALYST

CALLAWAY DIRECTION / ORIENTATION RPV COVERAGE ESTIMATE BREAKDOWNS PARALLEL SCANS CCW / CW PERP. SCANS UP/DN ITEM / AREA WELD NO. 2-RV-101-141 Lower Shell to Lower Head Circ.

Weld BEAM ANGLES BEAM 450 L Dual 450 L Single 450 Shear DIRECTION WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME CCW 78 77.4 76 75.3 78 76.1 cW 78 77.4 76 75.3 78 76.1 UP 90 81.6 90 72.9 90 76 DOWN 72.9 65 72.9 75 72.9 75 Combined Average - 77.3%

ANALYSTS__

Reclassified as Westinghouse Non-Proprietary Class 3 October 2006 Wamtngholm Prapr~otaa7 Clan 2C I T CA4LLA WAY RVISI 2004-SCP W/es))yne InternationaL

• \Vessel Rollout EXAMINATION PROGRAM PLAN IAU Dn 43Im mvuý VA"mw= CMIM

I ST-WE 1 21~'

Reclassified as Westinghouse Non-Proprietary Class 3 October 2006 WmmAnouue irPrie~tay IAU 2C Exam Limit 337.32 --

I" 332.98 Top Perp 335.48 Top Parattet 342.87 - 340.32 r Lugs Lugs Exam Li*it Bottom Parallet 75,0*Botton Perp R=88.09 to Clad R=88.09 to CMad

- 6.38 INDEX S17E Perp Scan~s a 0.331 Parallel Scans a .5 Weld 2-RV-101-141 (4)

SCAN LIMITS AROUND LUGS Perp Scans */- 7.8" ram Lug (L Parattel Scans +/- 11.0* from Lug CALL.A4WAY RVISI 2004-SCP IL WesDyne International Notes Perform scans between Lugs first then expand scans below Lugs

,na LOWER SHELL TO TORUS to maximize coverage. EXAMINATION PROGRAM PLAN Calculetlon of Botton PomltwooU I IDIMSHEET oF 21 IM1,490M.. SBEET18 21

WesDyne International Reactor Vessel Weld Results Summary CALLAWAY UNIT #1 WELD NO. 2-RV-302-121-A DESCRIPTION Inlet Nozzle 2-BB-01-FI02 DM Weld @ 670 Inlet Elbow Weld @ 670 Inlet Elbow Weld LIMITATIONS NO] YES]R Configuration 50% Combined Average UT RESULTS NI NO. OF UT INDICATIONS 6 H STATUS Code Allowable ET RESULTS NO. OF ET INDICATIONS 0 STATUS N/A EXAM DOCUMENTATION INDICATION DOCUMENTATION ANALYSIS LOG W[ASSESSMENT SHEET ACQUISITION LOG r- PARAGON HARD COPY SCAN PRINTOUT -- OTHER ( specify )

ERi COVERAGE BREAKDOWN WESDYNE ANALYST

CALLAWAY DIRECTION / ORIENTATION RPV COVERAGE ESTIMATE BREAKDOWNS PARALLEL SCANS CCW / CW PERP. SCANS IN / OUT ITEM / AREA Inlet Nozzle DM Weld @ 670 WELD NO's 2-RV-302-121-A BEAM ANGLES BEAM 700 L DIRECTION WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME CCw 100 100 Cw 100 100 IN 100 100 OUT 100 100 Combined Average = 100%

ANALYST

CALLAWAY DIRECTION / ORIENTATION RPV COVERAGE ESTIMATE BREAKDOWNS PARALLEL SCANS CCW / CW PERP. SCANS IN / OUT ITEM / AREA Inlet Elbow Weld @ 670 WELD NO's 2-BB-01-F102 BEAM ANGLES BEAM 700 L DIRECTION WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME CCW* 0 0 CW* 0 0 IN 100 100 OUT 100 100 i ill1 Combined Average = 50%

• Procedure limited for the detection of axial flaws per the PDI issued PDQS document. CW/CCW scans were performed. Areas of limitation were fully examined by supplemental visual (enhanced VT) and Eddy Current techniques.

ANALYST

WesDyne International Reactor Vessel Weld Results Summary CALLAWAY UNIT #1 WELD NO. 2-RV-302-121-B DESCRIPTION Inlet INozzle 2-BB-01-F202 DM Wel d @ 1130 Inlet Elbow Weld @ 113' YES -Inlet Elbow Weld LIMITATIONS NO] 1X Configuration 50% Combined Average NO. OF UT INDICATIONS 1 UT RESULTS HNI RIJ STATUS Code Allowable NI NO. OF ET INDICATIONS 0 ET RESULTS X STATUS N/A EXAM DOCUMENTATION INDICATION DOCUMENTATION

[X] ANALYSIS LOG Ix- ASSESSMENT SHEET

[X ACQUISITION LOG XI PARAGON HARD COPY I SCAN PRINTOUT OTHER ( specify)

Fx] COVERAGE BREAKDOWN WESDYNE ANALYST

CALLAWAY DIRECTION / ORIENTATION RPV COVERAGE ESTIMATE BREAKDOWNS PARALLEL SCANS CCW / CW PERP. SCANS IN/ OUT ITEM / AREA Inlet Nozzle DM Weld 0 1130 WELD NO's 2-RV-302-1 21-B BEAM ANGLES BEAM 700 L DIRECTION WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME CCW 100 100 Cw 100 100 IN 100 100 OUT 100 100 Combined Average = 100%

ANALYST _________________

CALLAWAY DIRECTION / ORIENTATION RPV COVERAGE ESTIMATE BREAKDOWNS PARALLEL SCANS CCW / CW PERP. SCANS IN IOUT ITEM / AREA Inlet Elbow Weld @ 1130 WELD NO's 2-BB-01-F202 BEAM ANGLES BEAM 700 L DIRECTION WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME CCW 0 0 CW* 0 0 IN 100 100 OUT 100 100 Combined Average= 50%

• Procedure limited for the detection of axial flaws per the PDI issued PDQS document. CW/CCW scans were performed. Areas of limitation were fully examined by supplemental visual (enhanced VT) and Eddy Current techniques.

ANALYST 41ýelý

WesDyne International Reactor Vessel Weld Results Summary CALLAWAY UNIT #1 WELD NO. 2-RV-302-121-C DESCRIPTION Inlet Nozzle 2-BB-01-F302 DM Weld

• 247° Inlet Elbow Weld ( 247r Inlet Elbow Weld LIMITATIONS NO] YESWIý Configuration 50% Combined Average UT RESULTS NO. OF UT INDICATIONS 2 RI STATUS 1 Code Allowable 1 Code Non-Allowable ET RESULTS NI RI NO. OF ET INDICATIONS 2 D STATUS See ET Indication Assessment sheet # 247-SE-09 EXAM DOCUMENTATION INDICATION DOCUMENTATION FRI ANALYSIS LOG %I ASSESSMENT SHEET F-] ACQUISITION LOG

[X] PARAGON HARD COPY Fx] SCAN PRINTOUT D OTHER ( specify )

[X] COVERAGE BREAKDOWN WESDYNE ANALYST

CALLAWAY DIRECTION / ORIENTATION RPV COVERAGE ESTIMATE BREAKDOWNS PARALLEL SCANS CCW / CW PERP. SCANS IN / OUT ITEM / AREA Inlet Nozzle DM Weld @ 2470 WELD NO's 2-RV-302-121 -C BEAM ANGLES BEAM 700 L DIRECTION WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME CCw 100 100 Cw 100 100 IN 100 100 OUT 100 100 Combined Average = 100%

ANALYST

CALLAWAY DIRECTION / ORIENTATION RPV COVERAGE ESTIMATE BREAKDOWNS PARALLEL SCANS CCW / CW PERP. SCANS IN / OUT ITEM / AREA Inlet Elbow Weld @ 2470 WELD NO's 2-BB-01-F302 BEAM ANGLES BEAM 700 L DIRECTION WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME CCW* 0 0 CW* 0 0 IN 100 100 OUT 100 100 Combined Average = 50%

• Procedure limited for the detection of axial flaws per the PDI issued PDQS document. CW/CCW scans were performed. Areas of limitation were fully examined by supplemental visual (enhanced VT) and Eddy Current techniques.

ANALYST

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WesDyne International Reactor Vessel Weld Results Summary CALLAWAY UNIT #1 WELD NO. 2-RV-302-121-D DESCRIPTION Inlet Nozzle 2-BB-01-F402 DM Weld @ 2930 Inlet Elbow Weld @ 2930 LIMITATIONS NO]1 YES EFI Inlet Elbow Weld Configuration 50% Combined Average UT RESULTS NO. OF UT INDICATIONS 0 STATUS N/A ET RESULTS NO. OF ET INDICATIONS 0 STATUS N/A EXAM DOCUMENTATION INDICATION DOCUMENTATION

[x] ANALYSIS LOG D ASSESSMENT SHEET

[X ACQUISITION LOG D PARAGON HARD COPY L- SCAN PRINTOUT D OTHER (specify)

[II COVERAGE BREAKDOWN WESDYNE ANALYST

CALLAWAY DIRECTION / ORIENTATION RPV COVERAGE ESTIMATE BREAKDOWNS PARALLEL SCANS CCW / CW PERP. SCANS IN / OUT ITEM / AREA Inlet Nozzle DM Weld A- 2930 WELD NO's 2-RV-302-121-D BEAM ANGLES BEAM 70 0 L DIRECTION WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME CCw 100 100 Cw 100 100 IN 100 100 OUT 100 100 Combined Average = 100%

ANALYST

CALLAWAY DIRECTION / ORIENTATION RPV COVERAGE ESTIMATE BREAKDOWNS PARALLEL SCANS CCW /CW PERP. SCANS IN / OUT ITEM / AREA Inlet Elbow Weld @ 2930 WELD NO's 2-BB-01-F402 BEAM ANGLES BEAM 700 L DIRECTION WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME CCW* 0 0 CW* 0 0 IN 100 100 OUT 100 100 Combined Average = 50%

• Procedure limited for the detection of axial flaws per the PDI issued PDQS document. CW/CCW scans were performed. Areas of limitation were fully examined by supplemental visual (enhanced VT) and Eddy Current techniques.

ANALYST

Reclassified as Westinghouse Non-Proprietary Class 3 October 2006

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e WesDyne International Reactor Vessel Weld Results Summary CALLAWAY UNIT #1 WELD NO. W19 DESCRIPTION Outlet Nozzle to Shell (2-RV-107-121-A) Weld @ 220 LIMITATIONS NO F YES F Nozzle Configuration 79.3% Combined Coverage RESULTS NI RI NO. OF INDICATIONS 0 STATUS N/A EXAM DOCUMENTATION INDICATION DOCUMENTATION W ANALYSIS LOG D ASSESSMENT SHEET

[X ACQUISITION LOG D] PARAGON HARD COPY L-] SCAN PRINTOUT [] OTHER ( specify )

F* COVERAGE BREAKDOWN WESDYNE ANALYST

CALLAWAY DIRECTION / ORIENTATION RPV COVERAGE ESTIMATE BREAKDOWNS PARALLEL SCANS CCW / CW PERP. SCANS IN /OUT ITEM / AREA WELD NO. 2-RV-1 07-121-A Outlet Nozzle to Shell @ 220 BEAM ANGLES BEAM Bore Scan Star Scan Tan Scan DIRECTION 00, 300, 450 WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME CCW 58.6 58.6 CW 58.6 58.6 OUT (away from bore) 100 100 *50 *50 IN (toward bore) - - *100 *100 Combined Average = 79.3% *Bore and Star scans complimentary Perp. coverage 100%

ANALYST S7ýzfa-<J-

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WesDyne International Reactor Vessel Weld Results Summary CALLAWAY UNIT #1 WELD NO. W22 DESCRIPTION Outlet Nozzle to Shell (2-RV-107-121-B) Weld @ 1580 LIMITATIONS NO D YESWF- Nozzle Configuration 79.3% Combined Coverage RESULTS NI X~

NO. OF INDICATIONS 0 STATUS N/A EXAM DOCUMENTATION INDICATION DOCUMENTATION X- ANALYSIS LOG [Z ASSESSMENT SHEET F[] ACQUISITION LOG D PARAGON HARD COPY W SCAN PRINTOUT D OTHER ( specify )

FX COVERAGE BREAKDOWN WESDYNE ANALYST C197 S;44--

CALLAWAY DIRECTION / ORIENTATION RPV COVERAGE ESTIMATE BREAKDOWNS PARALLEL SCANS CCW / CW PERP. SCANS IN / OUT ITEM / AREA WELD NO. -RV-1 07-121-B Outlet Nozzle to Shell @ 1580 BEAM ANGLES BEAM Bore Scan Star Scan Tan Scan DIRECTION 00, 300, 450 WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME CCW 58.6 58.6 CW 58.6 58.6 OUT (away from bore) 100 100 *50 *50 - -

IN (toward bore) - - *100 *100 Combined Average = 79.3% *Bore and Star scans complimentary Perp. coverage 100%

ANALYST

WesDyne International Reactor Vessel Weld Results Summary CALLAWAY UNIT #1 WELD NO. W23 DESCRIPTION Outlet Nozzle to Shell (2-RV-107-121-C) Weld @ 2020 LIMITATIONS NO D YES Ex] Nozzle Configuration 79.3% Combined Coverage RESULTS NO. OF INDICATIONS 0 STATUS N/A EXAM DOCUMENTATION INDICATION DOCUMENTATION x] ANALYSIS LOG D ASSESSMENT SHEET

[-X] ACQUISITION LOG -ZPARAGON HARD COPY I- SCAN PRINTOUT D-OTHER ( specify)

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CALLAWAY DIRECTION / ORIENTATION RPV COVERAGE ESTIMATE BREAKDOWNS PARALLEL SCANS CCW / CW PERP. SCANS IN / OUT ITEM / AREA WELD NO. 2.-RV-1 07-121 -C Outlet Nozzle to Shell @ 2020 BEAM ANGLES BEAM Bore Scan Star Scan Tan Scan DIRECTION 00, 300, 45° WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME CCW - 58.6 58.6 CW - - - 58.6 58.6 OUT (away from bore) 100 100 *50 *50 - -

IN(toward bore) - *100 *100 - -

Combined Average = 79.3% *Bore and Star scans complimentary Perp. coverage = 100%

ANALYST_

WesDyne International Reactor Vessel Weld Results Summary CALLAWAY UNIT #1 WELD NO. W26 DESCRIPTION Outlet Nozzle to Shell (2-RV-107-121-D) Weld @ 3380 LIMITATIONS NODF YESW Nozzle Configuration 79.3% Combined Coverage RESULTS NO. OF INDICATIONS 0 STATUS N/A EXAM DOCUMENTATION INDICATION DOCUMENTATION

-] ANALYSIS LOG D-ASSESSMENT SHEET X-] ACQUISITION LOG Z PARAGON HARD COPY

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WESDYNE ANALYST 54S 1aci_

CALLAWAY DIRECTION / ORIENTATION RPV COVERAGE ESTIMATE BREAKDOWNS PARALLEL SCANS CCW / CW PERP. SCANS IN / OUT ITEM / AREA WELD NO. -RV-107-121-D Outlet Nozzle-to Shell @ 3380 BEAM ANGLES BEAM Bore Scan Star Scan Tan Scan DIRECTION 0°, 300, 45° WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME WELD VOLUME CCW 58.6 58.6 CW 58.6 58.6 OUT (away from bore) 100 100 *50 *50 -

IN (toward bore) - - *100 *100 Combined Average = 79.3% *Bore and Star scans complimentary Perp. coverage = 100%

ANALYST

Reclassified as Westinghouse Non-Proprietary Class 3 October 2006

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10 CFR 50.55a Request Number ISI-40 Relief Requested in Accordance with 10 CFR 50.55a(g)(5)(iii) / 10 CFR 50.55a(a)(3)

--Preservice & Inservice Inspection Impracticality--

1. ASME Code Components Affected Weld Number Description Exam Item Number Comment Category 2-EP-01-8818A-1 6" PIPE TO VALVE R-A R1.20-4 PSI 2-EP-01-8818A-2 6" PIPE TO VALVE R-A R1.20-6 PSI 2-EP-02-8818B-1 6" PIPE TO VALVE R-A RI.20-4 PSI 2-EP-02-8818B-2 6" PIPE TO VALVE R-A R1.20-6 PSI 2-EP-02-8818C-1 6" PIPE TO VALVE R-A R1.20-4 PSI 2-EP-02-8818C-2 6" PIPE TO VALVE R-A Ri.20-6 PSI 2-EP-01-8818D-1 6" PIPE TO VALVE R-A R1.20-4 PSI 2-EP-01-8818D-2 6" PIPE TO VALVE R-A RI.20-6 PSI 2-EP-01-3066A-WDC-002-FW2 6" PIPE TO FLANGE R-A R1.20-6 PSI 2-EP-01-3066A-WDC-003-FW3 6" PIPE TO FLANGE R-A R1.20-6 PSI 2-EP-01-3066D-WDC-002-FW2 6" PIPE TO FLANGE R-A R1.20-6 PSI 2-EP-01-3066D-WDC-003-FW3 6" PIPE TO FLANGE R-A R1.20-6 PSI 2-BG-02-FW040 2" PIPE TO VALVE R-A Ri.20-4 ISI These are austenitic welds limited to single-side access and are subject to ultrasonic examination in accordance with Supplement 2 of Appendix VIII to the 1995 Edition with 1996 Addenda of ASME Section XI. Only 50% volume coverage can be claimed for these exams. (The welds that were subject to PSI as shown in the table above are new welds due to a modification that was completed during Refuel 14.

These welds are associated with the Accumulator Safety Injection system.)

2. Applicable Code Edition and Addenda

ASME Code Section XI - 1989 Edition, Appendix VIII of Section XI, 1995 Edition with the 1996 Addenda

3. Applicable Code Requirement

10 CFR 50.55a(b)(2)(xv)(A), requires the following examination coverage when applying Supplement 2 to Appendix VIII:

(1) Piping must be examined in two axial directions and when examination in the circumferential direction is required, the circumferential examination must be performed in two directions, provided access is available.

Page 1 of 3

10 CFR 50.55a Request Number ISI-40 (2) Where examination from both sides is not possible,- full coverage credit may be claimed from a single side for ferritic welds. Where examination from both sides is not possible on austenitic welds, full coverage credit from a single side may be claimed only after completing a successful single-sided Appendix VIII demonstration using flaws on the opposite side of the weld.

10 CFR 50.55a(b)(2)(xvi)(B) requires that examinations performed from one side of a ferritic or stainless steel pipe weld must be conducted with equipment, procedures, and personnel that have demonstrated proficiency with single-side examinations. To demonstrate equivalency to two-side examinations, the demonstration must be performed to the requirements of Appendix VIII as modified by this paragraph and 10 CFR 50.55a(b)(2)(xv)(A).

4. Impracticality of Compliance As stated above, 10 CFR 50.55a(b)(2)(xv)(A) requires that if access is available, the weld shall be scanned in each of the four directions (parallel and perpendicular to the weld). Full coverage credit may be taken for single-side exams on ferritic piping (when examination from both sides is not possible). However, for full coverage credit from a single side for austenitic piping, a procedure must be qualified with flaws on the inaccessible side of the weld. There are currently no qualified single-side examination procedures that demonstrate equivalency to two-side examination procedures on austenitic piping welds. Current technology is not capable of reliably detecting or sizing flaws on the far side of an austenitic weld for configurations common to US nuclear applications.

The industry-established Performance Demonstration Initiative (PDI) Program addresses 10 CFR 50.55a(b)(2)(xv)(A) requirements regarding single-side access for piping. PDI Performance Demonstration Qualification Summary (PDQS) certificates for austenitic piping list the limitation that single-side examination is performed on a best-effort basis. The best-effort qualification is provided in place of a complete single-side qualification to demonstrate that the examiner's qualification and the subsequent weld examination is based on application of the best available technology.

When the examination area is limited to one side of an austenitic weld, examination coverage does not comply with 10 CFR 50.55a(b)(2)(xv)(A) and proficiency demonstrations do not comply with 10 CFR 50.55a(b)(2)(xvi)(B). Full coverage credit cannot therefore be claimed.

5. Burden Caused by Compliance There are currently no qualified single-side examination procedures that demonstrate equivalency to two-side examination procedures on austenitic piping welds. Current technology is not capable of reliably detecting or sizing flaws on the far side of an austenitic weld for configurations common to US nuclear applications.

Page 2 of 3

10 CFR 50.55a Request Number ISI-40

6. Proposed Alternative and Basis for Use The best available techniques, as qualified through the PDI for Supplement 2 with a demonstrated best effort for single-side examination, are to be used from the accessible side of the weld (in lieu of complete or strict compliance with Appendix VIII requirements).

7. Duration of Proposed Alternative The remainder of the 2 nd 10-year inservice inspection interval.

Page 3 of 3

10 CFR 50.55a Request Number ISI-41 Relief Requested in Accordance with 10 CFR 50.55a(g)(5)(iii) / 10 CFR 50.55a(a)(3)

Inservice Inspection Impracticality

1. ASME Code Components Affected Weld Number Description Exam Coverage Item Limitation Category Number 2-TBB03-1OC-W Pressurizer Spray nozzle to top head weld B-D 82.7% B3.110 Nozzle geometry 2-TBB03-1OA-W Pressurizer Surge nozzle to lower head weld B-D 54.8% B3.110 Nozzle geometry

2. Applicable Code Edition and Addenda

ASME Code Section XI - 1989 Edition

3. Applicable Code Requirement

For Examination Category B-D, Item B3.110, IWB-2500 requires 100% volumetric examination of nozzle-to-shell welds as defined in Figure IWB-2500-7(b)

4. Impracticality of Compliance The design configuration of the subject nozzle-to-head welds precludes ultrasonic examination of essentially 100% of the required examination volume. In order to examine the welds in accordance with the code requirements, the pressurizer would require extensive design modifications. The physical arrangement of TBB03-10C-W, in conjunction with the close curvature of the outside wall surfaces of the nozzle does not allow for a complete examination from the nozzle side. Scans normal to the weld from the head side were essentially 100% complete.

Similarly, the physical arrangement of 2-TBB03-10A-W, in conjunction with the close curvature of the outside wall surface of the nozzle does not allow for a complete examination from the nozzle side. For scans normal to the weld on the bottom vessel head side, examinations are limited to areas approximately 1.5" from the weld toe.

Limitations on the bottom head side of 2-TBB03-10A-W are due to the presence of immersion heaters penetrating the head which restricts the scanning surface of the transducers.

The weld configurations and the exact coverage achieved for each required scan are detailed in the attached ultrasonic examination reports.

5. Burden Caused by Compliance Performance of an ultrasonic volumetric examination 100% of full penetration welds in the pressurizer nozzle-to-head welds would be impractical. AmerenUE has Page 1 of 2

10 CFR 50.55a Request Number ISI-41 determined that it would be impractical to attempt other volumetric examination in order to increase examination coverage.

6. Proposed Alternative and Basis for Use In lieu of the Code-required 100% ultrasonic examination, an ultrasonic examination was performed on accessible areas to the maximum extent practical. Ultrasonic examination of the subject welds to the maximum extent practical still provides assurance of an acceptable level of quality and safety. Significant degradation, if present, would have been detected during the ultrasonic examination that was performed on the subject welds.

7. Duration of Proposed Alternative The remainder of the 2 nd 10-year inservice inspection interval.

Page 2 of 2

UT Calibration/Examination

'*AmerenUE Site/UnIt.

CNP I 2 Procedure: AUE..JT-98-12 Outage No.: RF14 Summary No.: CAL.B3.1110.0008 Procedure Rev. a Report No.: UT-05-074 Workscope: 'Si Work Order No.: S705258 Page: 1 of I Code: ASME 1989, No Add Cat./Item: B-DIB3.110 Location: RB-2026-dIIL4 REACTO BLDG 2026' W AREA Drawing No.: ISI-TBB03 ShL1

Description:

SPRAY NOZZLE C TO TOP HEAD WELD System ID: BB Component ID: 2-TBB03-1OC-W Size/Length: 50" Thickness/Diameter 3.0" Limitations: Spray Nozzle. See Report UT-05.084, Pages 2-10 for Coverage Calculations. Start Time: 1652 Finish Time: 1805 Instrument Settings Search Unit Cal. Time Date Axial Orientated Search Unit Serial No.: 050361608 Serial No.: 003X19 Checks IntalCl.12 112105 Calibration Signal Sweep Sound Path Manufacturer- Panametrics Manufacturer. KBA Initial Cal. 1425 10112/2005 Reflector Amplitude % Division Model: Epoch 4 Plus Size: 1" Shape: Round Inter. Cal. 1652 10/1212005 1/4T SDH 80% 1.6 .65" Delay: 1.380 Range: 4.0" Freq.: 2.25 Style: Gamma HP Inter. Cal. I12T SDH 75% 3.5 1.40" M'tI CalNel: .2294 Pulser: Square Exam Angle: 0. # of Elements: Single Inter. Cal. 314T SDHI 64% 5.3 2.12" Damping: 400 ohm Reject: 0% Mode: Long nal Cal. 18051101121IQ05 I Notch >100% 8.0 3.20" Rep. Rate: Auto Freq.: 2.0 Measured Angle: N IA Couplant Filter: 0.8-3.0 Mode: PIE Wedge Style: Integral Cal. Batch: 96125 Circumferential Orientated Search Unit Voltage: /Energy Max Type: Ultragel II Calibration Signal Sweep Sound Path Ax. Gain (dB): 5.4 Circ. Gain (dB): N IA Search Unit Cable Mfg.: Sonotech Reflector Amplitude % Division I Screen Div. = .40 in. of Sound Path Type: RG-174 Exam Batch: 96125 NIA Linearity Report No.: LN-05-003 Length: 6' No. Conn.: 0 Type: Ultragel II Calibration Block Scan Coverage Mfg.: Sonotech Cal. Block No.: 1 UpstreamR- Downstreamr- Scan dB: Reference Block Reference/Simulator Blockl_-_-

Thickness: 3 Dia.: NIA CW E- CCW -] Scan dB: N A SerialNo.: 6137 Gain Signal Sweep Sound Path Exam Surface: OD Tp CS Mini  % 1.8is72' Cal. BIk. Temp.: 71" Temp. Tool: TID-2026.EN TID-2028-EN Surface Condition: As Found .... l40.7 Comp. Temp.: 78" Temp. Tool:

Recordable Indication(s): Yes El No R] (If Yes, Ref. Attached Ultrasonic Indication Report.)

Results: Accept [ Reject E] Info n Comments: Waveform Rectfition: Fullwave.

• Used various dB gain to maintain 80% FSH during scan.

Percent Of Coverage Obtained > 90%: No 182.7% Reviewed /vious Data: Yes Examiner Level 11-I i a Date Reviewer Signature D Charbonnet, Shane 10/212005 Gordon Forater Examiner Level N/A Signa Date Site Review Signature Date N/A B.L Montgomery Other Level II-Poi

• jS'gp,. Dale ANII Reviewouyang * *"nat, Date Moerer, Travis E. (Review) /'/p Fred C. ,,yan I

UT Calibration/Examination File Code: E170.0100 U 61

UT Calibration/Examination WA merenUg FiteUit: CNP I 2 Procedure: AUE-UT-98.12 Outage No.: RF14 Summary No.: CAL.B3.11.00l6 Procedure Rev. 0 Report No.: UT-05-075 Workscope: Page: I of I Is[ Work Order No.: S705258 Code: ASME 1989, No Add Cat./Item: B-D/B3.110 Location: RB-2026-dI L.I REACTO BLDG 2026' W AREA Drawing No.: ISI-TBB03 Sht1

Description:

SPRAY NOZZLE C TO TOP HEAD WELD System ID: BB Component ID: 2.TBB03.t0C.W Size/Length: 50" Thickness/Diameter 3.0" Limitations: Spray Nozzle. See Report UT.05-084, Pages 2-10 for Coverage Calculations. Start Time: 1700 Finish Time: 1804 Instrument Settings Search Unit Cal. Time Date Axial Orientated Search Unit Serial No.: 050361608 Serial No.: E19723 Checks C tgwu Manufacturer Panametrics Manufacturer: KBA Initial Cal. 1435 1011212005 aletor Signal Sweep Sound Path

_________________Reflector Amplitude % Division Model: Epoch 4 Plus Size: .5"x1" Shape: Rect. Inter. Cal. 1700 1011212005 114T SDH 80% 1.7 1.02" Delay: 12.39 Range: 6.0" Freq.: 2.25 Style: SWS Inter. Cal. A 1/2T SDH 56% 3.4 2.04" Mtl CalNel: .1262 Pulser. Square Exam Angle: 45 # of Elements:Single Inter. Cal. 3I4T SDH 41% 5.1 06"-.

Final Cal.-18044Shear 10112/200J. I Damping: 400 ohm Reject: 0% Mode:

Mode: ______Shear ____ ID Notch 20% 7.6 4.56" Rep. Rate: Auto Freq.: 2.0 Measured Angle: 450 Couplant 114T SDH 20% 9.3 5.58" Filter: 0.8- 3.0 Mode: PIE Wedge Style: Non-Integral Cal. Batch: 96125 Circumferential Orientated Search Unit Voltage: /Energy Max Type: Ultragel ii Calibration Signal Sweep Sound Path Ax. Gain (dB): 21.5 Circ. Gain (dB): 21.5 Search Unit Cable Mfg.: Sonotech Reflector Amplitude % Division S P I Screen Div. = .60 In. of Sound Path Type: RG-174 Exam Batch: 96125 114T SDH 80% 1.7 1.02" Linearity Report No.: LN-05-003 Length: 6' No. Conn.: 0 Type: Ultragai 11 112T SDH 56% 3.4 2.04" Mfg.: Sonotech 3I4T SDH 41% 5.1 3.06" Calibration Block Scan Coverage ID Notch 20% 7.6 4.56" i Reference Block Reference/Simulator Block Cal. Block No.:

Thickness: 3 Dia.:

Thckes: ia: 3 NA I UpstreamR DownstrearnRV Scan dB: 39.5 CW C *- CCW CW*-W ScanSadB dB: 39.5 -. SeriaGain Serial No.: 6137 dB j Signal % DSweep Reflector Amplitude iviion Sound Path Cal. Blk. Temnp.: 71, Temp. Tool: TID-2026-EN Exam Surface: OD Type CS Ampltue 215 S1 Reinito  % 1ivsi1o08 Camp. Temp.: 78. Temp. Tool: TID-2026-EN Surface Condition: As Found T CM A l1_9.0 Recordable Indication(s): Yes ] No W] (if Yes, Ref. Attached Ultrasonic Indication Report.) I Results: Accept [R Reject [] Info [E'Noted previously recorded ID Bore Geomerty. Comments: Waveform Rectification: Fullwave.

4dB difference between 3141 and 1 114T SDH from clad Percent Of Coverage Obtained > 90%: No 182.7% Revlew Previous Data: Yes side of calibration block.

Examiner Level II-PDI u Date Reviewer Signature Date Charbonnet, Shane 1011212005 Gordon Forster , - ' 101--;':*

Examiner Level N/A lture Date Site Review Signature Date N/A B.L. Montgomery 1.

Other Level I,-PDI Signature Date ANII Review f.Signai- Date Moerer. Travis E. (Review) 1 !l/i!jr Fred C.ouyang _ C, I~J fuuuiuuw -M"dUI~dTII~W & 1,q Fredue C. Si Ul %a8l1DraU01Vr-Xan1In*Ll0n HIS a: E170.0100

UT Calibration/Examination IAmerenUE CNP I 2 Procedure: AUE-UT-98-12 Outage No.: RF14 Summary No.: CAL.B3.110.0006 Procedure Rev.. 0 Report No.: UT-05-076 Workscope: ISI Work Order No.: S705258 Page: 1 of Code: ASME 1989, No Add Cat./Item: B-DIB3.110 Location: RB-2026-d11L4 REACTO BLDG 2026' W AREA Drawing No.: ISI-TBB03 Sht.1

Description:

SPRAY NOZZLE C TO TOP HEAD WELD System JO: BB Component ID: 2-TBB03.IOC.W SizelLength: 50" Thickness/Diameter 3.0" Limitations: Spray Nozzle. See Report UT-05-084, Pages 2.10 for Coverage Calculations. Start Time: 1719 Finish Time: 1801 Instrument Settings Search Unit Cal. Time Date Axial Orientated Search Unit Serial No.: 050361608 Serial No.: E19723 Checks Calibration Signal Manufacturer Panametrics Initial Cal. ignal ep Sound Path ManacttManufacturer: KBA C 1445 10112/200 Reflector Amplitude % Division Model: Epoch 4 Plus Size: .5"xl' Shape: Rect. Inter. Cal. 1719 1011212005 114T SDH 80% 1.8 1.44" Delay: 12.38 Range: 80" Freq.: 2.25 Style: SWS Inter. Cal. _ 112T SDH 45% 3.8 3.04" M1t CalNel: .1196 Pulser: Square Exam Angle: 60° #of Elements:Single Inter. Cal. I 34T SDH 30% 5.4 4.32" Damping: 400 ohm Reject: 0% Mode: Shear - Final Cal. 1801 T10I122005 ID Notch 18% 8.4 6.72" Rep. Rate: Auto Freq.: 2.0 Measured Angle: 60, Couplant 114T SDH 18% 9.5 7.60" Filter: 0.8- 3.0 Mode: PIE Wedge Style: Non-integral Cal. Batch: 86125 Circumferential Orientated Search Unit Voltage: /EnergyMax Type: Ultragel II Calibration Signal Sweep Sound Path Ax. Gain (dB): 28.7 Circ. Gain (dB): 28.7 Search Unit Cable Mfg.: Sonotech Reflector Amplitude % Division 1 Screen Div. =..80 in. of Sound Path Type: RG-174 Exam Batch: 9G125 114T SDH 80% 1.8 1.44" Linearity Report No.: LN-05-003 Length: 6. No. Conn.: 0 Type: Ultragel 1I 112T SDH 45% 3.8 3.04"

______________ e3/4T SDH 30% 5.4 4.32",

Sonotech 3D4Notch 38% 8.4 6.72" Scan Coverage Mfg.: 6.72" Calibration Block ID Notch 18% 1 8=.4 Cal. Block No.: 1 UpstreamR DownstreamW Scan dB: 46.7 Reference Block ReferencelSImulator Block Thickness: 3 Die.: NIA CW W CCWqJ Scan dB: T46.7 Serial No.: 6137 Gain dB Signal % Division Reflector Amplitude sweep Sound Path Cal. Blk. Temp.: 71" Temp. Tool: TID-2026-EN Exam Surface: OD Type: CS Mini Angle 28.7 SDH 19% 1.0 .60" Comp. Temp.: 78" Temp. Tool: TID-2026-EN Surface Condition: As Found Recordable Indication(s): Yes E) No W (if Yes, Ref. Attached Ultrasonic Indication Report.)

Results: Accept 91 Reject E] Info 5(Noted previously recorded ID Bore Geomerty. Comments: Waveform Rectification: Fullwave.

4dB difference between 3I4T and I 114T SDH from clad Percent Of Coverage Obtained > 90%: No 182.7% Reviewed Previgus Data: Yes side of caflbration block.

Examiner Level II-PDI n Date Reviewer Signature Date Charbonnet, Shane 10/12/2005 Gordon Forster 1/-X /,i/X7 Examiner Level NIA Signature r Date Site Review signatue 4

Date NIA B.L Montgomery 6obli jL.~1 /17 Other Level 1i.PDIt Signa tre Date ANII Review ""... nat A 6 } Date Moerer, Travis E. (Review) .- ?lJ..... /Fred C. Ouyang (.

UTCalibration/ExamJnation HeCode: El .0100 6

UT Calibration/Examination w merenlUE CNIP 1 2 Procedure: AUE-UT-98-12 Outage No.: RF14 Summary No.: CAL.B3.1 10.0006 Procedure Rev.: 0 Report No.: UT-05-084 Workscope: Is' Work Order No.: S684662 Page: 1 of 10 Code: ASME 1989, No Add Catl/tem: B-D/B3.110 Location: RB-2026-d11LlI REACTO BLDG 2026' W AREA Drawing No.: ISI-TBBO3 Sht.1

Description:

SPRAY NOZZLE C TO TOP HEAD WELD System ID: BB Component ID: 2-TBB03-IOC-W Size/Length: 50" Thickness/Diameter 3.0" Limitations: Spray Nozzle. See Report UT-05-084, Pages 2.10 for Coverage Calculations. Start Time: 1621 Finish Time: 1669 Instrument Settings Search Unit Cl

..... Time Date Axial Orientated Search Unit Serial No.: 050361608 Serial No.: 003YMK Checks Calibration Signal Sweep Sound Path Manufacturer: Panametrics Manufacturer: KBA Initial Cal. 1523 1011312005, Reflector Amplitude % Division Model: Epoch 4 Plus Size: .375" Shape: Round Inter. Cal. 1621 10113/2005 1I4T SDH 80% 1.8 1.44" Delay- 5.890 Range: 8.0" Freq.: 2.25 Style: Comp-G Inter. Cal. , 112T SOH 45% 3.6 2.89" M'tl Cal/Vel: .1251 Pulser: Square Exam Angle: 60* # of Elements: Single Inter. Cal. , 3/4T SDH 30% 5.5 4.40" Damping: 400 ohm Reject: 0% Mode: Shear - Final Cal. 1 1659 1011312005 Notch 18% 8.5 6.80" Rep. Rate: Auto Freq.: 2.0 Measured Angle: 60o Couplant I 114T SDH 10% 9.5 7.60" Filter: 0.8-3.0 Mode: PIE Wedge Style: Non-Integral Cal. Batch: 96125 Circumferential Orientated Search Unit Voltage: /Energy Max Type: Ultragel ii Calibration Signal Sweep o 24.0 Circ. Gain (dB): 24.0 Search Unit Cable Mfg.: Sonoatech Reflector Amplitude % Division Sound Path Ax. Gain (dB):

I Screen Div. = .80 in. of Sound Path Type: RG-174 Exam Batch: 96125 114T SDH 80% 1.8 1.44" S12T SDH 45% 3.6 2.88" LinartyReor N.:LN-05-003 Lnt: 6 NoCnn: 0 Type: Ultragel II1 314T SDH 30% 5.5 4.40" Calibration Block Scan Coverage Mfg.: Sonotech IDNotch 18% 8.5 6.80" Cal. Block No.: 1 Upstream -" Downstreanm Scan dB: 42.0 Reference Block RefareneeSimulator Block Thickness: 3 Dia.: N IA CW W] CCW 2j Scan dB: 42.0 SeilN. 1Gain Signal Sweep Sound Path Cal.__Th emp.: 3 gia.: IAN cSerial No.: 6137 Reflector Amplitude % Division Comp. Temp.: 78" Temp. Tool: TID-2026-EN Surface Condition: As FoundI Recordable Indication(s): Yes El No [ (If Yes, Ref. Attached Ultrasonic Indication Report.)

Results: Accept E0 Reject E] Info [g .375" 60" used to gain coverage in areas of lift off at Comments: Waveform Rectification: Fullwave.

transition of weld toe and at nozzle taper. 4dB difference between 3I4T and I 114T SOH from clad Percent Of Coverage Obtained > 90%: No /82.7% Reviewed revious Data: Yes side of calibration block.

Examiner Level Il-PDI a 'Date Reviewer Signature Date Charbonnet. Shane 1011312005 Gordon Forster :iý/ zr Examiner Level NIA SignatuV Date Site Review Signature Date NIA B.L. Montgomery 01at Other Level u[-Pm .Dinat Date ANII Review -. Si ure 47Date Moerer, Travis E. (Review) -" (-S Y~ 4 /4/i-3/d* Fred C.Ouyang 71 4 2 fV UT Calibration/Examlnation File Code: E170.0100 6(90

W4 lileren UF Supplemental Report Report No.: UT-05-084 Page: 2 of 10 Summary No.: CAL.B3.110.0006 Examiner. Charbonnet, Sha evel: Il-PDI Reviewer: Gordon Forster .* ate: /

D,*4 Examiner: N/A Level: N/A Site Review: F.L. Montgomeuyan j -ý Date:

Other: Moerer, Travis E. (Review) Level: II=PD. ANII Review: Fred C. Ouyang- 4 ate: //

9 1(

Comments:

Class I and 2 Pressute Vessel Coverage Calculation Step 1 Calculate Circumference (where required)

Diameter= 15.916" Circumference 50.002" Step 2 Calculate Total Required Volume Width of WRV 4.950 "

Thickness of WRV 3.1601" in2 required 15.642 sq. in.

Total Required Volume 782.131 cu. In.

Step 3 Calculate Total Volume with No 00 1 Obstruction #1 length of obstructed area 50.000 in2 with no coverage' 2.120 sq. in.

volume obstructed 106.000 cu. In.

2 Obstruction #2 length of obstructed area in2 with no coverage sq. in.

volume obstructed 0.000 cu. In.

3 Obstruction #3 length of obstructed area I in2 with no coverage sq. in.

volume obstructed .0.000 cu. In.

Total obstructed from 0° 13.6%

Supplemental Report File Code: E170.0100

Supplemental Report fAmeren U Report No.: UT-05-084 Page: 3 of 10 i

Summary No.: CAL.B3.1ID.0006 I

Examiner: Charbonnet, Shane- evel: l-PDI Reviewer: Gordon Forster ,,-Date: ,,r Examiner: WA Level: N/A Site Review: B.L. Montgomer 4,.- Date: -

Other: Moerer, Travis E. (Revlew) Level: I"-PDI ANII Review: Fred C. Ouyang- Date-.:/o// /9 -

Comments: Class I and 2 Pressure Vessel Coverage Calculation Step 4 Calculate Total Volume with No 450 Axial, Direction A I Obstruction #1 length of obstructed area . 50.000.

in2 with no coverage 0.060 6 sq. in.

volume obstructed 3.000 cu. In.

2 Obstruction #2 length of obstructed area in2 with no coverage sq. in.

volume obstructed 0.000 cu. In.

3 Obstruction #3 length of obstructed area in2 with no coverage. sq. in.

volume obstructed 0.000 cu. In.

Total obstructed from 450 Axial, Direction A 0.4%

Step 5 Calculate Total Volume with No 450 Axial. Direction B 1 Obstruction #1 length of obstructed area 50.000° In2 with no coverage 5.700 sq. in.

volume obstructed 285.000 cu. In.

2 Obstruction #2 length of obstructed area In2 with no coverage sq. in.

volume obstructed 0.000 cu. In.

3 Obstruction #3 u length of obstructed area in2 with no coverage sq. in.

volume obstructed 0.000 cu. In.

Total obstructed from 450 Axial, Direction B 36.4%/6 Supplemental Report File Code: E170.0100

4_Imemif/ Supplemental Report Report No.: UT-05-084 Page: 4 of 10 Summary No.: CAL.B3.110.0006 Examiner Charbonnet, Shane Level: Il-PDI Reviewer. Gordon Forster jy Date: /

Examiner: N/A Level: N/A Site Review: .. Da ,

Date: ,

Other: Moerer, Travis E. (Review Level: II-PDI ANI, Review: Fred C. Ouyang Date:

-- f Comments:

Class I and 2 Pressure Vessel Coverage Calculation Step 6 Calculate Total Volume with No 600 Axial. Direction A 1 Obstruction #1 length of obstructed area 50.000" in2 with no coverage 9,Q07q sq. in.

volume obstructed 3.500 cu. In.

2 Obstruction #2 length of obstructed area in2 with no coverage

• sq. in.

volume obstructed 0.000 cu. In.

3 Obstruction #3 length of obstructed area in2 with no coverage S .. sq. in.

volume obstructed 0.000 cu. In.

Total obstructed from 600 Axial, Direction A 0.4%

Step 7 Calculate Total Volume with No 600 Axial. Direction B 1 Obstruction #1 length of obstructed area 50.o00" in2 with no coverage 7.900 sq. in.

volume obstructed 395.000 cu. In.

2 Obstruction #2 length of obstructed area in2 with no coverage sq. in.

volume obstructed 0.000 cu. In.

3 Obstruction #3 length of obstructed area in2 with no coverage sq. in.

volume obstructed 0.000 cu. In.

Total obstructed from 60° Axial, Direction B 50.5%

Supplemental Report File Code: E170.0100

"Ameren UF Supplemental Report Report No.: UT-05-084 Page: 5 of 10 Summary No.: CALB3.110.0006 Reviewer: Gordon Fors~ter ,,,,,*,gDate: I&Ilp,3 Examiner: Charbonnet, Sha Level: Il-PDI Examiner: N/A Level: WA Site Review: B.L Montgoma ,x/tgr/:Dr-e Other: Moerer, Travis E. (ReviewLVX Level: Il-PDl ANI Review: Fred C. Ouyang ' Date:

Comments: 4fnzz i "hA Pressure Vessel Coverage Calculation Step 8 Calculate Total Volume with No 450 Circ Direction A 1 Obstruction #1 length of obstructed area 50.000" in2 with no coverage .2-A2.12.sq. in.

volume obstructed 106.000 cu. In.

2 Obstruction #2 length of obstructed area in2 with no coverage* sq. in.

volume obstructed 0.000 cu. In.

3 Obstruction #3 length of obstructed area In2 with no coverage sq. in.

volume obstructed 0.000 cu. In.

Total obstructed from 450 Circ, Direction A 13.6%

Step 9 Calculate Total Volume with No 450 CIrc. Direction B 1 Obstruction #1 length of obstructed area 50.000" in2 with no coverage 2.120 sq. in.

volume obstructed 106.000 cu. In.

2 Obstruction #2 length of obstructed area in2 with no coverage - sq. in.

volume obstructed 0.000 cu. In.

3 Obstruction #3 length of obstructed area in2 with no coverage sq. in.

volume obstructed 0.000 cu. In.

Total obstructed from 450 Circ, Direction B 13.6%

Supplemental Report File Code: E170.0ioo

0 Supplemental Report S'Ameren UE Report No.: UT-05-084 Page: 6 of 10 Summary No.: CAL.B3.110.0006 Examiner: Charbonnet, Shar lI-PD' Examiner: NIA N/A Other: Moerer, Travis E. !I-PDI Comments:

Pressure Ve55el Coverage_

Calculation-Step 10 Calculate Total Volume w~ith No 600"(IreDictoA 1 Obstruction #1 length of obstructed area $:6060 in2 with no coverage '2.120.sq.

' in.

volume obstructed 106.000 cu. In.

2 Obstruction #2 length of obstructed area In2 with no coverage `,'sq. in.

volume obstructed 0.000 cu. In.

3 Obstruction #3 length of obstructed area in2 with no coverage  :.sq. in.

volume obstructed 0.000 cu. In.

Total obstructed from 600 Circ, Direction A 13.6%

Step 11 Calculate Total Volume with No 600 Circ. Direction B 1 Obstruction #1 length of obstructed area - 50.000 in2 with no coverage 2.120 sq. in.

volume obstructed 106.000 cu. In.

2 Obstruction #2 length of obstructed area in2 with no coverage sq. in.

volume obstructed 0.000 cu. In.

3 Obstructioh #3 length of obstructed area in2 with no coverage sq. in.

volume obstructed 0.000 cu. In.

Total obstructed from 600 Circ, Direction B 13.6%

Supplemental Report File Code: E170.0100

I Supplemental Report W-AmerenUE Report No.: UT-05-084 Page: 7 of 10 Sun nmary No.: CAL.B3.110.0006 *, i Examiner: Charbonnet, Shane*ILG vel: NI-PDI Reviewer: Gordon Forster4_. ,@er Date:

Examiner N/A LIevel: N/A Site Review: B.L. Montgore Date:

Other. Moerer, Travis E. (ReviewLM LUeveh, II-PDI ANII Review: Fred C. Ouyang f I* Date:

/*- F/,fi "

Comments:

Class1 and 2 Pressure Vessel Coverage Calculation Total Volume Achieved per scan:

Achieved volume 00 86.4%

Achieved volume 450 Axial, Direction A 99.6%

Achieved volume 450 Axial, Direction B 63.6%

Achieved volume 600 Axial, Direction A 99.6%

Achieved volume 600 Axial, Direction B 49.5%

Achieved volume 450 Circ, Direction A 86.4%

Achieved volume 450 Circ, Direction B 86.4%

Achieved volume 600 Circ, Direction A 86.4%

Achieved volume 600 Circ, Direction B 86.4%

Composite coverage achieved 82.7%

Supplemental Report File Code: E170.0100

Supplemental Report tkAmerenUE Report No.: UT-05-004 Page: 8 el 10 Summary No.: CALB3.110.0006 Examiner: Charbonnet, Shan Level; 1i-POt Reviewer: Gordon Forster P-Oi6 I Date.

Examiner: N/A 4,* " 4 Level: WA Site Review:. B.L Montgomery,- Date: Yp.a Other: Moerer, Travls ,(ReviewiZ ' ,

• Level: Il-PO. ANI Review. Fred C. Ouyn /, Date: _L Comments:

toeteh (oavg..oeOrie ckonPhoto Xf .60 no (lentgAn =[or Xv Iesrc. (ic f- n1 i t.rc. Tcan Obstructed Volu;

3. 54" (av g. tikck ness)X . 60"(le egrth)=2.12"sq. X S0" ( dircumfer-ence o~fwe ld 106.0" cu. Total O bstructed V elu nte o=

Sketch or Photo:

0.

Avr5 33.11' NO Cvft6 K ~ .3hg" I

1 X 4.95" (lergth) =5.642sq. X 5W"(circumferenceof 8ed)

Total Code Required Volume (CRVY):3.16" (avg. thuckness)

Supplemenva Report Fie Code: E170.0100

Supplemental Report Report No.: UT-O5-084 Page: 9 of 10 SurmeryNO: CALB3.110.ON.:

Examiner: Charonnet, Shan Level: Il-PDI Revtewer. Gordon Forster,, Date:

ExaminerWA 4 Level: N/A Site Review: B.L. MontgomD*- ate: op/2.0,j4 Other. Moerer. Tr11 Rve)-&kC1&A Level: 1I-PDI ANi Review: Fred C. Ouyagn Date:

Comments:

Total Volume with no Coveraee for 45" Scan I (toward no2Zue):

Sketch or Photo: .30" (avg. thickness) X .40" (length) = .120" + 2 (for triangularshape of area) = .06"sq. X 50" (circumference of weld) = 3.0" cu. Total Obstructed Volume Total w - Volume T with 1 no-*7Coveraee for 45 Seon1 2 I(awayI from nozzle):I m 3.21" (avg. thickness) X 3.55" (length) z 11.396" + 2 (for triangutar shape of area) = 5.70" sq. X 50" (circumference of wt*r) =285.0" en. Total Obstructed Volume e*

f*5.*" 3,;;" 3,11

-3%,

S..'seC-OsAe.C

\F Total Code Required Volume (CRV): 3.16" (avg. thickness) X4.95" (length) = 15.642"sq. X SO" (circuwrference of weld = 782.1" eu. Total CRY RepertFileCede:E170.0100 Suinetementat

m rnUSupplemental Report Report No.: UT-05-84 Page: 10 of 10 Summary No.: c,'.9. o o*

Examiner. Charbonnet, Shen p "- Level: Il-PDI Reviewer: Gordon Forster " ,A 2 I.or Date:

Examiner: NIA , Level: WA Site Reviewv.B.L Montgomery Date: IO*/;q's' Other: Moerer Travis E. (Review) . T Level: lt-PDI ANI Revfew: Fred C. Ouyang Date:

Comments:

Sketch or Photo: Total Volume with no Coverage for 60 Scan I (toward nozzle):

.35" (avg. thickness) X .40" (length) = .140- 2 (for triongularshapeofarea)= .07"sq. X 5W" (circurmference of weld) = 3.50" cu. Total Obstructed Volume Total Volume with no Coverage for 60° Scan 2 (away from nozzle 3.16" (avg. thickness) X 5.0" (length)= 15.8" -2 (for triangularshape of area) = 7.90" sq. X 50" (circlunference ofweld) = 395.0" cu, Total Obstructed Volume

• .q*"3,*6" *,*" 3,11" Own 5.ee CC.=eAye.sA Svn,,.c ~,ee C.~'eeea.L No Cnuc Total Code Required Volume (CRV): 3.16" (arg. thickness) X 4.95" (length) = lS.642"sq. X 50" (circumferenceof weld) = 782.1" en.Tot &ILISv Supplomn-.tal Report Ftt Code: E170.0100

0, F4-rjp UT Calibration/Examination "AnlerenfUE sit nit: CNP I 2 Procedure: AUE-UT.98-12 Outage No.: RF14 Summary No.: CAL.B3.110.0006 Procedure Rev.. 0 Report No.: UT-05-082 Workscope: Work Order No.: S684662 Page: 1 of I Code: ASME 1989, No Add Cat/Item: B-DIB3.110 Location: RB.2026-d11L-I REACTO BLDG 2026' W AREA Drawing No.: ISI-TBB03 ShL1

Description:

SPRAY NOZZLE C TO TOP HEAD WELD System ID: BB Component ID: 2-TBBO3-IOC-W Size/Length: S0" Thickness/Diameter 3.0" Limitations: Spray Nozzle. See Report UT-05-084, Pages 2.10 for Coverage Calculations. Start Time: 1615 Finish Time: 1703 Instrument Settings Search Unit Cal. Time Date Axial Orientated Search Unit Serial No.: 050361608 Serial No.: O0XKVP Checks Irnd Manufacturer: Panametrics Manuactuer: Manufacturer: KBA

____________________________________________Re___ector______Relictor Initial Cal. 1430 10113/2005 Calibration Signal Ampltude% sweep vDiisio Sound Path Model: Epoch 4 Plus Size: .375" Shape: Round inter. Cal. 1615 10113/2005 114T SDH 80% 1.6 .64" Delay: 1.180 Range: 4.0" Freq.: 2.25 Style: Gamma-FDCP Inter. Cal. 1/2T SDH 75% 3.6 1.44" M'tI CalNel: .2331 Pulser: Square Exam Angle: 0° # of Elements: Single Inter. Cal. 334T SDH 64% 5.4 2.16

='3;.

Damping: 400 ohm Reject: 0% Mode: Long Final Cal. 1703 10/13/2005 ID Notch 40% 8.0 3.20" Rep. Rate: Auto Freq.: 2.0 Measured Angle: N/ A Couplant I -....

Filter. 0.8 -3.0 Mode: PIE Wedge Style: Integral Cal. Batch: 96125 Circumferential Orientated Search Unit Voltage: /Energy Max Type: Ultragel II Calibration Signal Sweep Sound Path Ax. Gain (dB): 5.0 Circ. Gain (dB): NIA Search Unit Cable Mfg.: Sonotech Reflector Amplitude % Division I Screen Div. = ,40 in. of Sound Path Type: RG-174 Exam Batch: 96125 NIA Linearity Report No.: LN-05-003 Length: 6' No. Conn.: 0 Type: Ultragel II Calibration Block Scan Coverage Mfg.: Sonotech Cal. Block No.: I UpstreamW Downstreamn Scan dB: 30 Reference Block Reference/Simulator Block Thickness: 3 Dia.: N/A CW F] CCW ] Scan dB: NIA Serial No.: 6137 di Signal Sweep Sound Path Temp. Tool: TID-2026-EN Exam Surface: OD Se : 67 dB Reflector Amplitude % Division Cal. Bik. Temp.: 71.

SType: CS Mini Angle SA SOH 80% 1.8 .72" Comp. Temp.: 78° Temp. Tool: TID-2026-EN Surface Condition: As Found Recordable Indication(s): Yes [] No [ (IfYes, Ref. Attached Ultrasonic Indication Report.)

Results: Accept RI Reject '] Info [X .375" 00 used to gain coverage In areas of lift off at Comments: Waveform Rectification: Fullwave.

transition of weld toe and at nozzle taper.

Examiner Level II.PDI Datle Reviewer Signature Date Charbonnet, Shane /.13 10113/2005 Gordon Forster Examiner Level NIA SSignAture Date Site Review Signature Date Other Level II-PDI S' nat Date ANII Review Date Moerer, Travis E. (Review) Fred C. Ouyang eo0, UTCalibration/Examination FileCode: E170.0100 C/0

UT Calibration/Examination wAfmfereUE S,,eit:

CNP 1 2 Procedure: AUE-UT-98-12 Outage No.: RF14 Summary No: CAL.B3.110.0006 Procedure Rev.. 0 Report No.: UT-05-083 Workscope: is' Work Order No.: S684662 Page: 1 of 2 Code: ASME 1989. No Add Cal./Item: B-D/B3.110 Location: RB-2026-d11L-4 REACTO BLDG 2026' W AREA Drawing No.: ISI-TBB03 Sht.1

Description:

SPRAY NOZZLE C TO TOP HEAD WELD System ID: BB Component ID: 2-TBB03-IOC-W Size/Length: 50' Thickness/Diameter 3.0" Limitations: Spray Nozzle. See Report UT-05-084, Pages 2.10 for Coverage Calculations. Start Time: 1628 Finish Time: 1700 Instrument Settings Search Unit Cal. Time Date Axial Orientated Search Unit Serial No.: 050361608 S erial N o.: OOIX 3V C hecks C lb ai Calibration S g lw Signal Sweep p o dPath Sound a Manufacturer: Panametrics Manufacturer: KBA Initial Cal. 1451 1011312005 Reflector Amplitude % Division Model: Epoch 4 Plus Size: .375" Shape: Round inter. Cal. 1628 1011312005 1/4T SDH 80% 1.7 1.02" Delay: 5.315 Range: 6.0" Freq.: 2.25 Style: Comp-G Inter. Cal. 112T SDH 56% 3.4 2.04" M1t CalNel: .1269 Pulser: Square Exam Angle: 45" # of Elements:Single Inter. Cal. 3/4T SOH 41% 5.1 3.06" Damping: 400 ohm Reject: 0% Mode: Shear Final Cal. 1700 1011312005 ID Notch 20% 7.4 4.44" Rep. Rate: Auto Freq.: 2.0 Measured Angle: 456 Couplant 1 114T SDH 20% 9.0 5.40" Filter: 0.8-3.0 Mode: PIE Wedge Style: Non-Integral Cal. Batch: 96125 Circumferential Orientated Search Unit Voltage: /Energy Max iType: Ultragel II Calibration Signal Sweep Sound Path Ax. Gain (dB): 10.5 Circ. Gain (dB): 10.5 Search Unit Cable Mfg.: Sonotech Reflector Amplitude % Division I Screen Div. = .60 in. of Sound Path Type: RG-174 Exam Batch: 96125 114T SDH 80% 1.7 1.02" Length: 6' No. Conn.: 0 Type: Ultragel 1 1/2T SDH 56% 3A 2.04" Linearity Report No.: LN-05-003 3/4T SDH 41% 5.1 3.06" Calibration Block Scan Coverage Mfg.: Sonotech Cai c Notch 20% 7.4 4.44" Cal. Block No.: I_____ Upstream Downstrear Scan dB: 28.5 Reference Block Reference/Simulator Block ---

Thickness: 3 Dia.: NIA CW 6d CCW ScandB: 28.5 Gain Signal Sweep Sound Path Tines 3 a:AWW-Scnd 20.5 Serial No.: 6137 dB Reflector Amplitude % Division Cal. Bmk. Temp.: 71" Temp. Tool: TID-2026-EN Exam Surface: OD Type: CS Mini Angle 10.5 SDH 48% 1.8 1.08" Comp. Temp.: 781 Temp. Tool: TID-2026-EN Surface Condition: As Found Recordable Indication(s): Yes [] No [ (If Yes, Ref. Attached Ultrasonic Indication Report.)

Results: Accept Sd Reject [] Info [51 .375" 45' used to gain coverage in areas of lift off at Comments: Waveform Rectification: Fullwave.

transition of weld toe and at nozzle taper. 1.6dB difference between 3/4T and I 114T SDH from clad Percent Of Coverage Obtained > 90%: No 182.7% Reviewevious Data: Yes side of calibration block.

Examiner Level II-1313i Date Reviewer Signature Date Charbonnet, Shane 10/13/2005 Gordon Forster, I Examiner Level NIA Date Site Review Signature Date NIA B.L. Montgomery Other Level II-PDu Signature Date ANII Review S, 16 Date Moerer, Travis E. (Review) J \. /O!A*/ " Fred C. Ouyang . .. . 1C.,

UTCalibration/Examination FlleCode: E170.0100 11 L/.J

Supplemental Report No.: UT-O5-083 Si"Report wftAerenUE Page: 2 of 2 Summary No.: CALB3.110.0006 - -41 ooý, Level: Il-PD/ Reviewer: Gordon Forster IV,6re Date:t Examiner. Charbonnet, Shane Level: WA Site Review: B.L. Montgome Date:

Examiner. N/A eview - Level: ll-PD, ANI Review: Fred C. Ouyan. Date:

Other: Moorer, Travis E.

Comments: Weld Profile.

Indicated weld crown width of 1.95" was determined by evaluating field measurements and design data.

Sketch or Photo:

I'

,53, p

I SLWO~MentW RepW FUeCode:E170.0100

S-~AmerenUE UT CalibrationlExamination CNP 1 2 Procedure: AUE-UT-98412 Outage No.: RF14 Summary No.: CAL.B3.110.O0ol Procedure Rev.: 0 Report No.: UT-05-085 Workscope: IS' Work Order No.: S70525B Page: 1 of I Code: ASME 1989, No Add Catl.tem: B-D1B3.110 Location: RB-2026-D1IL-I REACTOR BLDG 2026' W AREA Drawing No.: ISI-TBB03 Sht.1

Description:

SURGE NOZZLE TO BOTTOM HEAD WELD System ID: BB Component ID: 2-TBB03-10A-W Size/Length: 106.81 Thickness/Diameter 3.3" / 34" Limitations: Heaters and Nozzle Bore Start Time: 1555 Finish Time: 1610 Instrument Settings Search Unit Cal. rime Date Axial Orientated Search Unit Serial No.: 050360408 Serial No.: C2473B Checks Calibration Signal Sweep Depth Manufacturer: Panametrics Manufacturer: KBA Initial Cal. 1229 10112/2005 Reflector Amplitude % Division Model: Epoch 4 Plus Size: .5"x1" Shape: Rect inter. Cal. 1554 10112/2005 1/4 80% 2.0 0.75" Delay: 11.28 Range: 3.79" Freq.: 2.25 Style: SWS Inter. Cal. 1/2 60% 4.0 1.5" M'tl Cal/Vel: 0.1280 Pulser: Square Exam Angle: 45° #of Elements:Single Inter. Cal. 314 42% 6.0 2.25" Damping: 400 Ohm Reject: 0% Mode: Shear Final Cal. 11820 10112/20051 ID 31% 8.8 3.2" Rep. Rate: Auto Freq.: 2.0 Mhz Measured Angle: 45* Couplant 1 1/4 20% >10 3.75" Filter: 0.8-3.0 Mode: P/E Wedge Style: Non Integral Cal. Batch: 96125 Circumferential Orientated Search Unit Voltage: I Energy Max Type: Ultragel II Calibration Signal Sweep Ax. Gain (dB): 21.5 Circ. Gain (dB): 21.5 Search Unit Cable Mfg.: Soinotech Reflector Amplitude % Division Depth 2 Screen Div. = .75 in. of Depth Type: RG-174 Exam Batch: 96125 114 80% 2.0 0.75" LN-05-004 Length: 6' No. Conn.: 0 Type: Ultragel II 1/2 60% 4.0 1.5" Linearity Report No.:

3/4 42% 6.0 2.25" Calibration Block Scan Coverage Mfg.: Sonotech ID 31% 8.8 3.2" Cal. Block No.: 1 Upstream-- Downstreanm- Scan dB: 27.5 Reference Block Reference/Simulator Block Thickness: 3 Dia.: NIA CW CCW&a Scan dB: 27.5 Serial No.: 863260 Gain Signal Sweep Depth Cal. BIk. Temp.: 71" Temp. Toot: TID-2016-EN TdB Reflector Amplitude % Division Exam Surface: OD Type: CS Mini Angle 21.5 SDH 40% 2.0 0.75" Comp. Temp.: 7r° Temp. Tool: TID-2016-EN Surface Condition: As Found Recordable Indication(s): Yes [] No W (If Yes, Ref. Attached Ultrasonic Indication Report.)

Results: Accept W] Reject jj Info E] Noted previously recorded ID bore geometry Comments: 6.3 dB difference 314T to I 1/4T on clad side.

Percent Of Coverage Obtained > 90%: No 54.8% Reviewed Previous Data: Yes Waveform rectification: Fullwave Examiner Level II Signature Date Reviewer Signature - Date Russomanno, Marlo L. . ... - 10/18/2005 Gordon Forster 44.64 '-z -

Examiner Level N/A Signature Date Site Review Signature Date NIA B.L. Montgomery1"3 S Other Level II-pOi Dale ANII Review - Signa r Date Charbonnet, Shane (Reviewer) / 0_I-p I Fred C. Ouyang UT Calibration/Examination File Code.¶170.0100 G'CU I

UT CalibrationlExamination JZwOfte Uen Site/Unit: N 2 Procedure: AUE-UT-98-12 Outage No.: RF14 Summary No.: CAL.B3.110.0001 Procedure Rev.: 0 Report No.: UT-054-86 Workscope: ISI Work Order No.: S705258 Page: 1 of I Code: ASME 1989, No Add CatJItem: B-DIB3.110 Location: RB-2026-DIIL-1 REACTOR BLDG 2026' W AREA Drawing No.: ISI-TBB03 Sht.1

Description:

SURGE NOZZLE TO BOTTOM HEAD WELD System ID: BB Component ID: 2-TBB03-10A.W Size/Length: 106.81" Thickness/Diameter 3.3" 134" Limitations: Heaters and nozzle bore Start Time: 1613 Finish Time: 1630 Instrument Settings Search Unit Cal. Time Date Axial Orientated Search Unit Serial No.: 050360408 Serial No.: D29742 Checks Calibration Signal Sweep Depth Manufacturer Panametrics Manufacturer KBA Initial Cal. 1240 10112/2005 Reflector Amplitude % Division Model: Epoch 4 Plus Size: .5"xl' Shape: RecL Inter. Cal. 1612 1011212005 114t SDH 80% 2.0 0.75" Delay: 13.87 Range: 7.578 Freq.: 2.25 Style: SWS Inter. Cal. 112t SDH 53% 4.0 1.5" M'til CalNel: 0.1280 Pulser: Square Exam Angle: 60* # of Elements: Single Inter. Cal. 3/4t SOH 44% 6.0 2.25" Damping: 400 Ohm Reject: 0% Mode: Shear Final Cal. 1822 10112/20051 ID Notch 16% 8.5 3.75" Rep. Rate: Auto Freq.: 2.0 Mhz Measured Angle: s00 Couplant 11/4t SDH 24% >10 3.75" Filter: 0.8-3.0 Mode: PIE Wedge Style: Non Integrall Cal. Batch: 96125 Circumferential Orientated Search Unit Voltage: I Energy Max Type: Ultragel II Calibration Signal Sweep Ax. Gain (dB): 29.5 Circ. Gain (dB): 29.5 Search Unit Cable Mfg.: Sonotech Reflector Amplitude % Division Depth 2 Screen Div. = .-75 In. of Depth Type: RG-174 Exam Batch: 96125 1l4t SDH 80% 2.0 0.75" Length: a' No. Conn.: 0 Type: Ultragel 11 1/2t SDH 53% 4.0 2.25" Linearity Report No.: LN-05-004 3/4t SDH 44% 6.0 2.25" Calibration Block Scan Coverage Mfg.: Sonotech ID Notch 16% 8.5 3.75" Cal. Block No.: I UpstreamrW Downstreamn Scan dB: 27.5 Sril Reference

o. Block 6460 Ga eien Reference/SImulator t Block Smpitude %Dvsieep Depth

[

Thickness: 3 Dia.: NIA CW R] CCW RJ Scan dB: 27.5 SeGgal No.: 86-3260 ain Signal Sweep Dips Temp. Tool: Ti1-2016-EN Exam Surface: OD Type: CS Mini Angle 21.5 4isio.n DSDi Cal. BIk. Temp.: 71" Comp. Temp.: 77" Temp. Tool: TID-2016-EN Surface Condition: As Found Tye CSMiniAngle_ 21.5 t DH 40% 2.0 0.75" Recordable Indication(s): Yes ] No (If Yes, Ref. Attached Ultrasonic Indication Report.) I Results: Accept [ Reject fJ Info [3 Noted previously recorded ID bore geometry Comments: 3.2 dB Difference 3I4T to I 114T on clad side.

Percent Of Coverage Obtained > 90%: No 54.8% Reviewed Previous Data: Yes Waveform rectification: Fullwave Examiner Level II Signature Date Reviewer Signature Date Russomanno, Mario L. 10117/2005 Gordon Forster ~i4~

Examiner Level N/A Signature Date Site Review Signature Date N/A B.L. Montgomery Af J,'"

Other Level II..PDi jzd Date ANtI Review ',(eDate Charbonnet, Shane (Reviewer) Fred C. Ouyang C.

UT Calibratlon/Examlnation File Cod . 0.01 00 ,"V

UT CalibrationlExamination WAmerenUE Site/Unit: CNP 2 Procedure: AUE-UT-98-12 Outage No.: RF14 Summary No.: CALB3.110.0001 Procedure Rev.: 0 Report No.: UT-05-088 Workscope: eSI Work Order No.: S70525B Page: 1 of 7 Code: ASME 1989, No Add Cat./Item: B-D/B3.110 Location: RB-2026-D1ILL4 REACTOR BLDG 2026" W AREA Drawing No.: ISI-TBB03 Sht.1

Description:

SURGE NOZZLE TO BOTTOM HEAD WELD System ID: BB Component ID: 2.TBB03-IOA-W Size/Length: 106.81" Thickness/Diameter 3.3" 134" Limitations: Heaters and nozzle bore Start Time: 1540 Finish Time: 1550 Instrument Settings Search Unit Cal. Time Date Axial Orientated Search Unit Serial No.: 050360408 Serial No.: 003X18 Checks Clri Signal S Manufacturer: Panametrics Manufacturer KBA Iniltil Cal. 1305 70112/2005 Reflector Amplitude % Division Depth Model: Epoch 4 Plus Size: 1" Shape: Round Inter. Cal. 1539 1011212005 114 SDH 30% 1.6 0.64"*

Delay: 1.417 Range: 4.0" Freq.: 2.25 Style: Gamma HP Inter. Cal. _ 1/2 SDH 67% 3.4 1.36" M'tI CalNel: 0.2291 Pulser, Square Exam Angle: 00 # of Elements:Single Inter. Cal. 1_ 1 314 SDH 61% 5.3 2.12" U==ý Ene- Final Cal. 118241101112/2004 Damping: 400 Ohms Reject: 0% Mode: Longitudinal Back wall )100 7.9 3.16" Rep. Rate: Auto Freq.: 2.0 Mhz Measured Angle: N/A Couplant _ I Filter: 0.8- 3.0 Mode: PIE Wedge Style: Integral Cal. Batch: 96125 Circumferential Orientated Search Unit Voltage: /Energy Max Type: Ultragel 1i Calibration Signal Sweep N/A Search Unit Cable Mfg.: Sonotech Reflector Amplitude % Division Depth Ax. Gain (dB): 5.5 Circ. Gain (dB):

I Screen Div. a .04 in. of Depth Type: RG-174 Exam Batch: 96125 NIA Linearity Report No.: LN-05-004 Length: 6' No. Conn.: 0 Type: Ultragel II Calibration Block Scan Coverage Mfg.: Sonotech Cal. Block No.: 1I Upstream-] Downstreamf-g Scan dB: 11.5 Reference Block Referonce/Simulator Block

________ __________ SrilNo: 6320 Gain Signal Sweep Thickness: 3 Dia.: NIA CW El CCW ] Scan dB: NIA elo-3260 Gain Snaplte D Depth Cal. B6k. Temp.: 71" Temp. Tool: TID-2016-EN Exam Surface: OD Te : CS Mn Aegle 5.5litude0% iv19 0.4 Comp. Temp.: 77* Temp. Tool: TID-2016-EN Surface Condition: As Found CIMniAgliSN 'Tye: I0 i9 0.4 Recordable Indication(s): Yes [] No [ (If Yes, Ref. Attached Ultrasonic Indication Report.) ffi Results: Accept R] Reject [E Info [M Comments: Waveform rectification: Fullwave Percent Of Coverage Obtained > g0%: No 54.8% Reviewed Previous Data: Yes Examiner Level 1I Signature Dale Reviewer Signature Date Russomanno, Mario L. 10/17/2005 Gordon Forster Examiner Level NIA Signature Date Site Review Signature Date N/A B.L. Montgomery Other Level II.PDI Date ANII Review Signet " Date Charbonnet, Shane (Reviewer) -/.Fred C. Ouyang C, UT Calibration/Examination File c1 -70 d"l00-

Supplemental Report U,

• 'AmernU Report No.: UT-05-088 Page: 2 of 7 Summary No.: CAL.B3.110.0001 Examiner Russomanno, Mario L. Level: U1 Reviewer: Garden Forster Date:

Examiner: N/A Level: N/A Site Review: B.L Montgomems -k '"t71--- Date: -/1/___1 Other: Charbonnet, Shone (Reviewer Level: 11-PDI ANII Review: Fred C. Oulyang Date:

Comments: Weld Profile Sketch or Photo:

'To-tat Rej,,1'e.AV61ojre = 244.41 "all Supplemental Report File Code: E170.0100

Supplemental Report W7AMereiUE Report No.:

Page: 3 UT-05-088 of 7 Summary No.: CAL.B3.110.0001 Examiner: Russomanno, Marto L. Level: Ii Reviewer: Gordon Forster - Date: ,

Examiner: N/A ;r , Level: N/A Site Review: B.L. Montgomery Date: ",/tl e.)

Other: Charbonnet, Shone (Reviewe r ' Level: I1-POI ANII Review: FredC.Ouyang 0~ Date:

Comments: 0°, 45 Circ and 60 Circ Direction A and Direction B Obstruction #1 and Obstruction #2 Sketch or Photo: ,/

• re%.jAer Pre= Me's a&,

Slorse KID'.,L4 Heo*er s Supplemental Report File Code: E170.0100

Supplemental Report Report No.: UT-05-088 WAmeren UE Page:_ 4 of 7 Summary No.: CALB3.110.0001 Reviewer:, Gordon Forater Date:

11 Examiner: Russomanno, Mario L'Level:

N/A Level: NIA Site Review: B..Montgome Examiner:

ANI I Review: Fred C. Ouy ný- . Date:

Other: Charbonnet, Shane (Reviewer r Level: 11-PDI w ,

Comments: 45° Axial Direction A Obstruction #1 and Obstruction #2 Sketch or Photo:

PBm~i-&- -io wessuil-MeV SWp "IA14 Obswruc4iar #1 Hecaers Supplemental Report File Code: E170.0100

5 Supplemental -tupui-c v

%AwereUE Report No.: UT-05-088 Ai Page: 5 of 7 Summary No.: CALB3.110.O001 Examiner: Russomanno, Mario L. Level: U1 Reviewer: Gordon Forster `Z Date: "

Examiner: N/A Level: NIA Site Review: B.L. Montgome r hA kDate: D  : /a ,I Other. Charbonnet, Shane eviewer Level: I-P1I ANII Review: Fred C. Ouyang"* _o. Date: //4V/of-Comments: 450 Axial Direction B Obstruction #1 and Obstruction #2 Sketch or Photo:

Pf*.&tVdIj-X t e S~Jrb~r a* r`v v" ýA e c-Heccfe,es Supplemental Report File Code: E170.0100

a Supplemental Report Report No.: UT-05-088 S4'meen UE of 7 Page: 6 Summary No.: CALB3.110.0001 ,,

, , a W Date:

• Level: II Reviewer: Gordon Forster Examiner: Russomanno, Mario L,21..

Level: N/A Site Review: B.L. Montgomey* Date: ,,/ */~y Examiner N/A #007,o J Other: Charbonnet, Shane (Reviewer)6

• Level: H3-PDI ANII Review: Fred C. Ouyang  %*- &

(/d6,* . .. .

I I

1. 2 Comments: 60* Axial Direction A Obstruction #1 and Obstruction Sketch or Photo:

py L. c, r sicv . 002%k-p-

4. 1, Supplemental Report File Code: E170.0100

Supplemental leport Report No.: UT-05-088 W'AmenrenUf Page: 7 of 7 r Summary No.: CAL.B3.110.O001 Z 1r' Date:

II Reviewer: Gordon Forster Examiner: Russomanno, Mario Site Review: B.L Montgorer ýom-e- Date:

jp e,: N/A Examiner: N/A ANII Review: Fred C. 0;yn .0 .. Date:'

Other Charbonnet, Shane (Reviewer)

/,>-0 6

I"olo//

Level: 11-PDI I-" - - - 61 6

1. 2 Comments: 60° Axial Direction B Obstruction #1 and Obstruction Sketch or Photo:

-~A Supplemental Report File Code: E170.0100

% StUE Class l and 2 Pressure Vessel Coverage Calculation Step 1 Calculate Circumference (where required)

Diameter=. 34.00" Circumference 106.81 Step 2 Calculate Total Required Volume Width of WRV. ....

5.80-"

Thickness of WRV ..3 30".

in2 required 19.14 sq. in.

Total Required Volume 2044.42 cu. In.

Step 3 Calculate Total Volume with No 00 Obstruction #1 length of obstructed area -30,00" in2 with no coverage 0.96 sq. in.

volume obstructed 28.71 cu. In.

2 Obstruction #2 length of obstructed area 106.81 in 2 With no coverage- 6. sq. in.

volume obstructed 735.65 cu. In.

3 Obstruction #3 length of obstructed area::

in2with no coverage.. sq. in.

volume obstructed 0.00 cu. In.

Total obstructed from 00 37.4%

Page 1 of 6

-- I

%"NWanUE Class I and 2 Pressure Vessel Coverage Calculation Step 4 Calculate Total Volume with No 450 Axial, Direction A 1 Obstruction #1 W.

length of obstructed area,:. ::.30.00" in2with no coverage 6.53 sq. in.

volume obstructed 195.80 cu. In.

2 Obstruction #2 length of obstructed area in2 with no coverage 3.:32 sq. in.

volume obstructed 354.48 cu. In.

3 Obstruction #3 length of obstructed area in2 with no coverage sq. in.

volume obstructed 0.00 cu. In.

Total obstructed from 450 Axial, Direction A 26.9%

Step 5 Calculate Total Volume with No 450 Axial, Direction B 1 Obstruction #1 length of obstructed area. 30.00 "

in2 with no coverage 0.:.005: sq. in.

volume obstructed 1.35 cu. In.

2 Obstruction #2 length of obstructed area in with no coverage!' 1*4,-20 sq. in.

volume obstructed 1516.94 cu. In.

3 Obstruction #3 length of obstructed area in2 with no coverage : -i sq. in.

volume obstructed 0.00 cu. In.

Total obstructed from 450 Axial, Direction B 74.3%

Page 2 of 6

,F *'.

'if:' l*;l i

-No%!-enU Class I and 2 Pressure Vessel Coverage calculation Step 6 Calculate Total Volume with No 60 °Axial, Direction A 1 Obstruction #1 length of obstructed area, 30.:00" in2 with no coverage ,,::, .16 sq. in.

volume obstructed 378.37 cu. In.

2 Obstruction #2 length of obstructed area 1'.-

06.81-ý in2 with no coverage 2.1i7sq. in.

volume obstructed 231.78 cu. In.

3 Obstruction #3 length of obstructed area in2 with no coverage  : sq. in.

volume obstructed 0.00 cu. In.

Total obstructed from 600 Axial, Direction A 29.8%

Step 7 Calculate Total Volume with No 600 Axial, Direction B 1 Obstruction #1 length of obstructed area.i 30.00" in with no coverage 0.03 sq. in.

volume obstructed 0.81 cu. In.

2 Obstruction #2 length of obstructed area 1-06.81" in2 with no coverage J6.94 sq. in.

volume obstructed 1809.63 cu. In.

3 Obstruction #3 length of obstructed area:". .

in with no coverage - sq. in.

volume obstructed 0,00 cu. In.

Total obstructed from 600 Axial, Direction B 88.6%

Page 3 of 6

A Class 1 and 2 Pressure Vessel Coverage Calculation Step 8 Calculate Total Volume with No 450 Circ. Direction A 1 Obstruction #1 length of obstructed. area :30*.00.ý."

in2 with no coverage  ;.96 sq. in.

volume obstructed 28.71 cu. In.

2 Obstruction #2 length of obstructed area, 106.81 in2 with no coverage  ::6. .89 sq. in.

volume obstructed 735.65 cu. In.

3 Obstruction #3 length of obstructed area,:.

in2 with no coverage sq. in.

volume obstructed 0.00 cu. In.

Total obstructed from 450 Circ, Direction A 37.4%

Step 9 Calculate Total Volume with No 450 Circ. Direction B 1 Obstruction #1 length of obstructed area :.. 30.00" in with no coverage 0.96 sq. in.

volume obstructed 28.71 cu. In.

2 Obstruction #2 length of obstructed area 7 106.81 ini2 with no coverage.:-.: 6.89 sq. in.

volume obstructed 735.65 cu. In.

3 Obstruction #3 length of obstructed area n2 with no coverage sq. in.

volume obstructed 0.00 cu. In.

Total obstructed from 450 Circ, Direction B 37.4%

Page 4 of 6

~4weanUEe Class land 2 Pressure Vessel Coverage Calculation Step 10 Calculate Total Volume with No 600 Circ,. Direction A 1 Obstruction #1 length of obstructed area "30.00" in2 with no coverage 0ig6 sq. in.

volume obstructed 28.71 cu. In.

2 Obstruction #2 length of obstructed area 1:06.81-in 2with no coverage : ,:..6.89.jgsq. in.

volume obstructed 735.65 cu. In.

3 Obstruction #3 length of obstructed area in2 with no coverage sq. in.

volume obstructed 0.00 cu. In.

Total obstructed from 600 Circ, Direction A 37.4%

Step 11 Calculate Total Volume with No 60a Circ. Direction B 1 Obstruction #1 length of obstructed area 30.00" in2 with no coverage 09.6. sq. in.

volume obstructed 28.71 cu. In.

2 Obstruction #2 length of obstructed area :

106.81:"

in with no coverage. 6.89 sq. in.

volume obstructed 735.65 cu. In.

3 Obstruction #3 length of obstructed area in2 with no coverage sq. in.

volume obstructed 0.00 cu. In.

Total obstructed from 60' Circ, Direction B 37.4%

Page 5 of 6

. I nfeUE Class I and 2 Pressure Vessel Coverage Calculation Total Volume Achieved per scan:

Achieved volume 00 62.6%

Achieved volume 450 Axial, Direction A 73.1%

Achieved volume 450 Axial, Direction B 25.7%

Achieved volume 600 Axial, Direction A 70.2%

Achieved volume 600 Axial, Direction B 11.4%

Achieved volume 450 Circ, Direction A 62.6%

Achieved volume 450 Circ, Direction B 62.6%

Achieved volume 600 Circ, Direction A 62.6%

Achieved volume 60' Circ, Direction B 62.6%

Composite coverage achieved 54.8%

Examiner ___.-___________

Reviewer _____"dt date Site Review _ j" date Page 6 of 6