ML17286B248

Responds to NRC 901228 Ltr Transmitting SER on Util Responses to Generic Ltr 88-01 Re Intergranular Stress Corrosion in Piping.Requests That NRC Reconsider NRC Positions Contained in SER Re Leak Detection

ML17286B248
Person / Time
Site:	Columbia
Issue date:	01/08/1992
From:	Sorensen G WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
GL-88-01, GL-88-1, GO2-92-004, GO2-92-4, TAC-M69161, NUDOCS 9201150140
Download: ML17286B248 (48)

Text

ACCELERATED DI< UTION DEMONS TION SYSTEM 1

t REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR:9201150140 DOC.DATE: 92/01/08 NOTARIZED: NO DOCKET FACIL:50-397 WPPSS Nuclear Project, Unit 2, Washington Public Powe 05000397 AUTH. NAME AUTHOR AFFILIATION SORENSEN,G.C. Washington Public Power Supply System RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Responds to NRC 901228 ltr transmitting SER on util responses to Generic Ltr 88-01 re intergranular stress corrosion in piping. Requests that NRC reconsider NRC positions contained in SER re leak detection. D DISTRIBUTION CODE: A001D COPIES RECEIVED:LTR ENCL SIZE:

TITLE: OR Submittal: General Distribution NOTES:

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL D PD5 LA 1 1 PD5 PD 1 1 ENG,P.L. 2 2 D INTERNAL: ACRS 6 6 NRR/DET/ECMB 7D 1 1 NRR/DET/ESGB 1 1 NRR/DOEA/OTSB11 1 1 NRR/DST 8E2 1 1 NRR/DST/SELB 7E 1 1 NRR/DST/SICB8H7 1 1 NRR/DST/SRXB 8E 1 1 NUDOCS-ABSTRACT 1 1 OC/LFMB 1 0 OGC/HDS1 1 0 RE~4 .

" 1 1 1 RES/DSIR/EIB 1 1 EXTERNAL: NRC PDR 1 1 NSIC 1 1 D

A D

D NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 20079) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED'TTR 24 ENCL 22 pl

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WASHINGTON PUBLIC POWER SUPPLY SYSTEM P.O. Box 968 ~ 3000 George Washington Way ~ Richland, Washington 99352 Docket No. 50-397 Januaty:8, 1992 G02-92-004 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555 Gentlemen:

Subject:

NUCLEAR PLANT NO. 2, OPERATING LICENSE NPF-21 RESPONSE TO NRC SER ON GENERIC LETTER 88-01 (TAC Nod]69161)

References:

1) Letter, G02-88-164, GC Sorensen (SS) to NRC, "Supply System Response to NRC's Generic Letter 88-01,"

dated July 26, 1988

2) Letter, G02-89-123, GC Sorensen (SS) to NRC, "Supply System's Response to Generic Letter 88-01 Request for Additional Information," dated July 20, 1989

3) Letter, PL Eng (NRC) to GC Sorensen (SS), "Response to Generic Letter g8-01, Intergranular Stress Corrosion in Piping (TAC No/(69161)," dated December 28, 1990

4) Letter, G02-91-088, GC Sorensen (SS) NRC, "Response to Generic Letter 88-01, Intergranular Stress Corrosion in Piping (TAC No.1l~69161),o dated May 3, 1991 This submittal provides the Supply System's response to NRC's December 28, 1990, letter and associated Safety Evaluation (Reference 3). The NRC's letter identified certain outstanding issues related to the Supply System's responses to Generic Letter 88-01 for its WNP-2 facility. The Supply System initially responded to Generic Letter 88-01 on July 26, 1988 (Reference 1). Additional information was provided to the Staff on July 20, 1989 (Reference 2).

In summary, the Supply System agreed to implement the majority of the recommenda-tions contained in Generic Letter 88-01. However, our responses proposed alternatives to the Staff's position on leak detection and its request to revise applicable Technical Specifications. Regarding leak detection, the Supply System's responses indicated that the WNP-2 leak detection system currently meets Position C of Regulatory Guide 1.45, and that the corresponding Technical Specifications were developed in accordance with the applicable Standard Technical specifications contained in NUREG-0123 (see Reference 2, Table 4).

Concerning the Staff's request to reference Generic Letter 88-01 in the Technical Specifications, the Supply System proposed instead to include the reference in a revision to its NRC-approved Inservice Inspection ( ISI) Program Plan (Reference 1).

- 920.1150140 920108 PDR ADOCK 0500035'7 PDR

Document Control Des Page Two RESPONSE TO NRC SER ON GENERIC LETTER 88-01 The NRC reviewed the Supply System's responses to Generic Letter 88-01, and in its December 28, 1990, letter stated that they were "acceptable" with four "exceptions" (Reference 3). The four exceptions are related to the alternative approaches referenced above. Specifically, NRC requested that the Supply System respond to the following exceptions:

4

1) A Technical Specification change should be submitted to "include a statement that the inservice inspection program conforms with the NRC staff positions on inspection schedules, methods and personnel, and sample expansion."

2) A Technical Specification change should be submitted to "include a requirement to shut down the plant when the rate of unidentified leakage increases by more than 2 gallons per minute within a 24-hour period."

3) As opposed to "performing channel checks at 12-hour intervals," the Supply

'ystem must "revise [the] leak rate monitoring frequency...[such that]

leakage rates may be measured every 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />."

4) The Supply System "must review the weld records and provide revised inspection plans if the use of Inconel materials is not as required in Generic Letter 88-01".

~Res ense Based on a review of the exceptions, 'the Supply System concludes that certain circumstances exist at the WNP-2 facility which do not appear to have been considered in the Staff's development of Generic Letter 88-01. Therefore, the Supply System requests that NRC reconsider the issues raised by exceptions 1 and 4 in light of the unique circumstances discussed below. Furthermore, the Supply System believes that exceptions 2 and 3 should also be reconsidered. In this regard, the Supply System understands that the Staff is currently preparing a supplement to Generic Letter 88-01 which may provide additional flexibility in responding to exceptions 2 and 3. Accordingly, the Staff is requested to consider the Supply System's response to these two exceptions in light of the anticipated supplement.

Technical S ecification

References:

Res onse to Exce tions 1 and 4 In response to exception 4, the Supply'ystem reviewed weldments originally classified as Category A pursuant to Generic Letter 88-01 to determine the type of Inconel material used at the WNP-2 facility. This review involved original fabrication records which had not been readily available during the initial review. As a result of this review, the Supply System determined that 14 nozzle to safe-end welds, originally classified as Category A, required redesignation.

An additional 11 nozzle to safe-end welds in the feedwater and ECCS systems, constructed of carbon steel were included in the scope of Generic Letter 88-01.

'g = I Document Control Desk Page Three RESPONSE TO NRC SER ON GENERIC LETTER 88-01 Twenty five nozzle to safe-end welds have Inconel 182 weld metal buttering exposed to the fluid media. Eight were originally classified as Category A and are now classified as Category D because of previous inspections. Six others, and the 11 added to the scope, are now classified as Category G and will be inspected during the next refueling outage. Upon completion of the inspection they will be reclassified as Category D. Additionally, 17 other welds involving safe-end extensions have been added to the scope of Generic Letter 88-01 as Category A because of conforming configuration and Inconel 82 weld material exposed to the fluid media.

The Supply System has revised Tables 2 and 3, as originally provided to the NRC in Reference 2, to reflect these changes. Copies are provided as requested in Attachments 1 and 2.

The weld reclassification will result in an increased inspection frequency.

Under ASME Section XI, the Supply System is required to inspect the welds once every 10 years. However, Generic Letter 88-01 requests that welds classified as Category D be inspected every two refueling outages (see Generic Letter 88-01, Table 1). Because the Supply System operates the WNP-2 facility on a 12-month refueling cycle (as opposed to the typical 18-month cycle for other BWRs), the Generic Letter 88-01 inspection schedule will require the welds to be inspected every two years - an increase of four additional inspections over a ten year period.

The increased inspection frequency will result in a corresponding significant increase in occupational exposure. The WNP-2 facility's design is such that access to 15 of the 25 nozzle to safe-end welds requires movement of the sacrificial shield nozzle doors. Discussions with several other BWRs have led to the conclusion that this installation and the resultant occupational exposure is unlike that at those facilities. As a consequence, the Supply System has estimated that the change From inspection under ASME Section XI to that of Generic Letter 88-01 involves an increase of approximately 250 man-rems per inspection. With four additional inspections over each 10-year ISI inspection interval, implementing the inspection schedules recommended by Generic Letter 88-01 will increase occupational exposure by approximately 1000 man-rems.

We do not believe that this increase in occupational exposure was anticipated by the Staff in developing the inspection schedules contained in Generic Letter 88-01. The Generic Letter, its underlying regulatory analysis (see Internal NRC Memorandum from K. Denton to J. Sniezek, dated April 9, 1986), and its associated technical evaluations (see NUREG-0313, Rev. 2 and NUREG-1061, Rev. 1) do not address occupational exposure associated with increased inspection frequency.

The Staff's regulatory analysis (at pp. 5-6) acknowledges that "accurate quantitative assessments of all plants affected would be extremely diffi-cult...[and] [e]ven would be very uncertain."

if predicted, the calculated cost in dollars and person-rem Considering the unique, plant-specific circumstances at the WNP-2 facility that result in a significant -increase in occupational exposure, the Supply System proposes the following alternatives to meet the intent of Generic Letter 88-01.

Document Control Desk Page Four RESPONSE TO NRC SER ON GENERIC LETTER 88-01 During the next refueling outage (R7) currently scheduled for April 1992, the Supply System will inspect the 17 Category G and 7 Category D safe-end welds in accordance with the recommendations in Generic Letter 88-01 (one

.of the eight redesignated Category D welds was inspected during R6).

2) The occupational radiation exposure received during the performance of the inspections will be measured and, as appropriate, factored into the Supply System's final response.

"I

3) A sampling inspection plan to meet the intent of Generic Letter 88-01 will be developed considering the following factors: weld distribution by pipe size and system service; the actual exposure data obtained from the R7 inspections; the potential for implementing'esign changes to the access doors; and the possibility for implementing other appropriate recommenda-tions in Generic Letter 88-01 for mitigating IGSCC.

4) The results of the IGSCC inspections during the next refueling outage for the nozzle to safe-end welds, and the sample inspection plan will be submitted to the NRC within 90 days following the completion of R7.

5) -The Supply System is evaluating mitigating techniques, including stress improvement of the buttered joints. The evaluation will consider industry experience, accessibility and exposure.

Therefore, the need for Technical Specification changes (and thus the final response to exception 4) will be considered following resolution of the foregoing issues.

In summary, although the Supply System is proposing an alternative method of complying with Generic Letter 88-01, the WNP-2 facility currently complies with applicable NRC regulations and licensing commitments.

Leak Detection: Res onse to Exce tions 2 and 3 The Supply System understands that the NRC staff is preparing a supplement to Generic Letter 88-01 (see 'nternal NRC Memorandum from E.L. Jordan (CRGR Chairman) to J.M. Taylor, entitled "Minutes of CRGR Meeting No 209," issued September 3, 1990) that provides additional flexibility beyond that contained in the December 28, 1990 letter. Apparently, the supplement will specifically address the issues raised in Exception 2 (i.e., Technical Specification allowed outage time and action statements), and exception 3 (i.e., the leak detection surveillance frequency). Therefore, the Supply System proposes to wait until after the issuance of the supplement to Generic Letter 88-01 to finalize its response to the two exceptions (Reference 4).

The Supply System believes that the delay in responding is justified because it is currently in compliance with applicable NRC regulations. The redundant design features of the WNP-2 leak detection system meet the intent of the Staff's guidance contained in Regulatory Guide 1.45, Position C and were reviewed and approved in the WNP-2 Safety Evaluation Report [SER section 5.2.5]. Furthermore, the operability of the leak detection system is verified once every 12-hour shift in accordance with the WNP-2 facility Technical Specifications [Tech. Spec.

3/4.4.3. l.a]. The Technical Specifications were prepared in accordance with the Standard'echnical Specifications (i.e., NUREG-0123).

l

~ ~

Document Control Desk Page Five RESPONSE TO NRC SER ON GENERIC LETTER 88-01 In view of the impending supplement, the Supply System requests that the NRC Staff reconsider the positions contained in exceptions 2 and 3. Following the issuance of the supplement, the Supply System will reevaluate its leak detection system and the need to revise any corresponding Technical Specification changes.

In this regard, the Supply System will provide a final response to exceptions 2 and 3 within 60 days after receipt of the supplement to Generic Letter 88-01.

Included in that submittal will be a revised copy of Table 4, as originally provided to the Staff in Reference 2. Certain provisions within Table 4 need revision to reflect the identification of welds in Categories D and G.

Conclusion The Supply System requests that the NRC reconsider the exceptions contained in its December 28, 1990 letter in light of the plant-'specific information discussed above, as well as the pending issuance of a supplement to Generic Letter 88-01.

While the Supply System believes that it currently is in compliance with the applicable NRC regulatory requirements and guidance regarding IGSCC, the alternatives presented above will ensure that operations at the WNP-2 facility continue to meet the intent of Generic Letter 88-01.

Very truly yours, G. C. $ orensen, Hanager Regulatory Programs bk Attachments cc: JB Hartin - NRC RV NS Reynolds - Winston 8 Strawn PL Eng - NRC DL Williams - BPA/399 NRC Site Inspector - 901A

C D E F G H I K L M N 0 P TABLE 1 INSPECTION SCHEDULE CATEGORY D/G EXAMINATIONSCOMPLETED 4 CAT. ISI IDENT. NO. Drawin Rl R2 R3 R4 R5 R6 R7 RS Rg R10 Rll R12 R13 5 D(1) 10LPCS(l)X LPCS-1 01-2 6 G(1~) 10HPCS(1)4 HPCS-101-2 7 D(1) 12LPCI(1)A RHR-101 8 G(1~) 12LPQ(1)B4 RHR-102 9 G(1~) 12LPQ(1)C6 RHR-103 10 G(lg) 4JP(NZ)A-1 RPV-101 11 G(1 g) 4JP(NZ) B-1 RPV-101 12 D(1) 12RFW(1)AC-13 RFW-101-3 13 D(1) 12RFW(1)AB-11 RFW-101 4 14 D(1) 12RFW(1)AA-11 RFW-1 01-5 15 D(1) 12RFW(1)BD-11 RFW-1024 16 D(1) 12RFW(l) BE-11 RFW-1 02-4 17 D(1) 12RFW(1) BF-14 RFW-102-5 18 G(12) 12RRC(l)kl2E RRC-1 01-4 19 G(1,2) 12RRC(1)-N2D4 RRC-1 01-5 20 G(1~) 12RRC(l)-hEA RRC-1 01-6 21 G(lg) 12RRC(1)-N2&8 RRC-1 01-7 22 G(lg) 12RRC(1)-N2A-6 RRC-1 01-8 23 G(1~) 12RRC(1)-N2K-6 RRC-1 02-4 24 G(19) 12RRC(1)-N2J-6 RRC-1 02-5 25 G(lg) 12RRC(1)-N2H-6 RRC-1 02-6 26 G(lg) 12RRC(1)-N2G4 RRC-1 02-7 27 G(lg) 12RRC(1)-N2FW RRC-102%

28 G(1~) 24RRC(2)A-1 RRC-101-1 29 G 12 24 2 B-1 RRC-102-1 30 TOTAL 1 3 2 1 1 1 24 31 32 1 Added to GL8841 scope 33 2 Will be reclassifed as categong D after R7 examination 34 Page 1

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WELD DRAWING TREATMENT 5 HLLhSEB. 50. bQKEEISL{D GHX QBQ R 7 G(11,17) 4JP(NZ)A-1 RFV-101 e N9 NZNE 105 Non~nforming (2) 8 A 4JP(NZ)A-2 RFV-101 NSSE-PN SLe105 Conforming (3) 9 G(11,17) 4JP(NZ) B-1 RFV-101 NS NZ-SE e 285 Nonconforming (2) 10 A 4JP(NZ) B-2 RFV-101 e N9 SE-PN SL 285 Conforming (3) ll B 20RHR(2)-1 RHR-104 VALVETO SE Non~nforming IHSI 9/83 12 B 20RHR(2)-2 RHR-104 SETO VAI VE Non-conforming (4) IHSI 9/83 13 B 12RHR(1)A-14 RHR-105 VALVETO SE No~nforming (4) IHSI S/83 14 B 12RHR(1)A-15 RHR-105 SETO PIPE Nonconforming IHSI S/83 15 B 12RHR(l)A-16 RHR-105 PIPE TO EL Non~nforming IHSI 9/83 16 B 12RHR(1)A-17 RHR-105 ELTO PIPE Non~nforming IHSI Sl83 17 B 12RHR(1)A-18 RHR-105 PIPE TO VALVE Non-conforming IHSI 9/83 18 B 12RHR(1) 8-1 0 RHR-106 VALVETO SE Non~nforming Nonconforming (4) IHSI 9/83 19 B 12RHR(1) B-11 RHR-106 SETO EL Non~nforming IHSI 9/83 20 B 12RHR(1) B-12 RHR-106 ELTO PIPE IHSI 9/83 21 B 12RHR(l) B-1 3 RHR-106 PIPE TO VALVE Nonconforming IHSI 9l83 22 G(11,17) 24RRC(2)A-1 RRC-101 NOZTO SE Non~nforming (5) 23 B 24RRC(2)A-2 RRC-101 SETO PIPE Non-conforming IHSI 9/83 24 B 24RRC(2)L3 RRC-101 PIPE TO EL Non-conforming IHSI 9/83 25 B 24RRC(2)AX RRC-101 EL TO PIPE Non~nforming IHSI 9/83 26 B 24RRC(2)A-5 RRC-101 PIPE TO PIPE Non~nforming IHSI S/83 27 B 24RRC(2)AW RRC-101 PIPE TO TEE Non-conforming IHSI 9/83 28 B 24RRC(2)A-7 RRC-101 TEE TO PIPE Non~nforming IHSI 9/83 29 B 24RRC(2)AW RRC-101 PIPE TO EL Non~nforming IHSI 9/83 30 B 24RRC(2)A-9 RRC-101 EL TO VALVE Non-conforming IHSI 9/83 31 B 24RRC(2)A-1 0 RRC-101 VALVETO PIPE Non~nforming IHSI S/83 32 B 24RRC(2)A-10/4RRC(8)~ RRC-101 PIPE TO SWL Non~nforming IHSI 5/86 33 B 4RRC(8)2A-1 RRC-101 SWLTO PIPE Non~nforming IHSI 9l83 34 B 4RRC(8)2A-2 RRC-101 PIPE TO RANGE Non-conforming IHSI 9/83 35 B 24R 2 10f4 4 ~ RRC-101 PIPE TO SWL Non~ nformin IHSI 5/86 Page 1

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>W ICO I>>>>MN CI ~ f. ~ I,'I WI 4 I'i I 4 Ih I I4 1 ll ih I 'I VM 1 1 1 pg I, M ' ,Mi 4'I 1 LM a ) il ~ M 4 kM. 1 fg 'I 4 I I W N II I M]I N ~ WWI I I ~ ~ 1 4 II J NJ MN N I ' ~ h'4 4 ,r pl N IN 1 4 Wl li' h WM t+ " 4 4 NN 9 ~ .1 9 N 'I fh P' p 4 ai 44 W,'i I 4 r I '1-1 4~ Ny VV NN I 4 7 I N pl 41 I ~ I'4 J! 1 l f MM 1 h jh) '1@la 4 1 C F G H 1 TABLE2 2 WELD HISTORY 3 4 IGSCC WELD DRAWING TREATMENT 5 QhXEGQBY HUhSEB Mt. 5HZ QBG R 65 B 12RRC(1)-N2A-1A RRC-101 PIPE TO PIPE Nonconforming IHSI 9/83 66 A 12RRC(1)kl2A-2 RRC-101 PIPE TO EL Conforming P) X 67 A 12RRC(1)-N2AC RRC-101 EL TO PIPE Conforming P) X 68 A 12RRC(1)-N2AR RRC-101 PIPE TO SE Conforming (S) X X 69 G(11,17) 12RRC(1)-N2AW RRC-101 SE TO NOZ Nonconforming (10) 70 B 12RRC(l)-N2B-1 RRC-101 SWLTO PIPE Nonconforming (8) IHSI 9/83 71 B 12RRC(1)4I2B-lA RRC-101 PIPE TO RPE Non-conforming IHSI 9/83 72 A 12RRC(l)-N2B-2 RRC-101 PIPE TO EL Conforming (7) X 73 A 12RRC(l)-N2&3 RRC-101 EL TO PIPE Conforming (7) X 74 A 12RRC(1)kl2B-4 RRC-101 PIPE TO SE Conforming (9) X X 75 G(11,17) 12RRC(1)-N2B-6 RRC-101 SE TO NOZ Nonconforming (10) 76 B 12RRC(1)-N2C-1 RRC-101 REDUCER TO PIPE Nonconforming (8) X X IHSI 9/83 77 B 12RRC(1)-N2C-lA RRC-1 01 PIPE TO PIPE Nonconforming IHSI 9/83 78 A 12RRC(1)-N2C-2 RRC-101 PIPE TO EL Conforming (7) X 79 A 12RRC(1)-N2C4 RRC-101 ELTO PIPE Conforming (7) X 80 A 12FIRC(1)-N2C'A RRC-101 PIPE TO SE Conforming (9) X X 81 G(11.17) 12RRC(1)-N2G6 RRC-101 SE TO NOZ Nonconforming Non-conforming (10) 82 B 12RRC(1)-N2D-1 RRC-101 SWLTO PIPE Nonconforming (8) X X IHSI 9/83 83 B 1~1)4I2D-1A RRC-101 PIPE TO PIPE IHSI 9/83 84 A 12RRC(1)-N2D-2 RRC-101 PIPE TO EL Conforming (7) X 85 A 12RRC(1)-N2lM RRC-101 EL TO PIPE Conforming (7) X 86 A 12RRC(1)-N2lM RRC-101 PIPE TO SE Conforming (S) X X 87 G(11.17) 12RRC(1)-N2D-6 RRC-101 SE TO NOZ Nonconforming (10) 88 B 12RRC(l)-N2E-1 RRC-101 SWLTO PIPE Non-conforming (8) X X IHSI 9/83 89 B 12RRC(1)-N2E-1A RRC-101 PIPE TO PIPE Nonconforming IHSI 9/83 90 A 12RRC(1)4I2E-2 RRC-101 PIPE TO EL Conforming P) X 91 A 12RRC(1)-N2EN RRC-101 EL TO PIPE Conforming (7) X 92 A 12RRC(1)-N2ER RRC-101 PIPE TO SE Conforming (9) X X 93 G 11.1 1 1 +l2EW RRC-101 SETO NOZ No info rmin 10 Page 3 4 'Fh tf XI 4 4) ~ 'r 4 rh I 'I I hl 4 I tfrx .I 'I I 4 \~ 4) 4 4 wx L"l r 4 4 4 't h C I'I 4 4 lg Ih 4 I ~ F lt wf lI~ IXX t ~ 4 lx "xx rf 4 I I h i' f "~ VI f 4 I I trc I f lf tax 41 ,41 1.1 ',1 lt 4 ~, '4 ~ ~ 4 ) 'I.'4 4 ~ 1 'xl 4 I wl 71 t lx'th I'4 f 'f 4")Xh 4 4 4 71 I, "xq k') g, f, It ", g T, ~ t', xll 'lF li f t,' 4 J 4 '4 4 v bw 4 h 't Xgh ~ ~ Frt>IFF'. a&X)rwf/X.h --~& 4 1 TABLE2 2 WELD HISTORY 3 4 IGSCC WELD DRAWING TREATMENT 5 QKEGQBY HllhSEB IIQ. SEE QBQ K 94 G(11,17) 24RRC(2) B-1 RRC-102 NOZTO SE Nonconforming (5) 95 B 24RRC(2) B-2 RRC-102 SETO PIPE Nonconforming IHSI 9/83 96 B 24RRC(2) E3 RRC-102 PIPE TO EL Nonconforming IHSI 9/83 97 B 24RRC(2) S4 RRC-102 EL TO PIPE Non-conforming IHSI 9/83 98 B 24RRC(2)B-5 RRC-102 PIPE TO PIPE Nonconforming IHSI 9/83 99 B 24RRC(2)B-6 RRC-102 PIPE TO EL Nonconforming IHSI 9/83 100 B 24RRC{2) B-7 RRC-102 EL TO VALVE Nonconforming IHSI 9/83 101 B 24RRC(2)B4 RRC-102 VALVETO PIPE Nonconforming IHSI 9/83 102 B 24RRC(2) B4/4RRC(8)~ RRC-102 PIPE TO SWL Non-conforming IHSI 5/86 103 B 4RRC(8)2B-1 RRC-102 SWLTO PIPE Non-conforming IHSI 9/83 104 B 4RRC(8)2B-2 RRC-102 PIPE TO FLANGE Non-conforming IHSI 9/83 105 B 24RRC(2) B-8/4RRC(4)~ RRC-102 PIPE TO SWL Non-conforming IHSI 5/86 106 B 24RRC(2) B-9 RRC-102 PIPE TO EL Nonconforming IHSI 9/83 107 B 24RRC(2) B-1 0 RRC-102 EL TO PUMP Nonconforming IHSI 9/83 108 B 24RRC(1) B-11 RRC-102 PUMP TO PIPE Nonconforming IHSI 9/83 109 B 24RRC(l)B-11/8CAP RRC-102 .PIPE TO SWL Nonconforming IHSI 5/86 110 B 24RRC(l)B-11/8CAP-1 RRC-102 SWLTO CAP Nonconforming IHSI 9/83 Nonconforming (6) 111 B 24RRC(1)B-11/4RRC(8)~ RRC-102 PIPE TO SWL No~nforming IHSI 5/86 112 B 4RRC(8)1 B-l RRC-102 SWLTO PIPE IHSI 9/83 Nonconforming 113 B 4RRC(8)1 B-2 RRC-102 PIPE TO FLANGE Nonconforming Nonconforming IHSI 9/83 114 B 24RRC(1) B-1 2 RRC-102 PIPE TO VALVE Nonconforming IHSI 9/83 115 B 24RRC(1) B-13 RRC-102 VALVETO PIPE IHSI 9/83 116 B 24RRC(1) B-14 RRC-102 PIPE TO EL IHSI 9/83 117 B 24RRC(1)B-15 RRC-102 EL TO PIPE Nonconforming IHSI 9/83 118 B 24RRC(1)B-1 6 RRC-102 PIPE TO VALVE Nonconforming IKSI 9/83 119 B 24RRC(1) B-l 7 RRC-102 VALVETO EL Nonconforming IHSI 9/83 120 B 24RRC(1)B-18 RRC-102 EL TO PIPE Non-conforming IHSI 9/83 121 B 24RRC{1)B-18/12RRC(7)-4S RRC-102 PIPE TO SWL Nonconforming IHSI 5/86 122 B 24 1 B-18/12CAP RRC-102 PIPE TO SWL Non~ nformin IHSI 5/86 Page 4 ~ * >>'MW W >> W 'I 4 v' 'I II ~ t [If, [(I ~ tl WI 4 N j% y 4 w 1 I WWI W W I 4 w I 7 'I j~t IJ '. 7 7 4' Vll Wtf PW CW M,h I'N 7 I' IWW <<.f C} W} E I", lf W I >>. W}'- M lf N I (lt tl I I' t 'I IJI II Pl If} <<M IWI, V t1 ,I l>>h IV [Y << 'I 4 'I W 4 W l I 4 I Ih 7 W4 TW X >>AI N Wl V IW ff jill y IY 4 >>W ~ I 4 ~, 4 ~,j ~ I r N n I ~ I " Will ~ << I 7 I' 4 7 W 1 4 IIW Ia , tl 4 7 <<' If I 'll ('1 W 4 ff I 4 7 , Il; ~ 'X." 4 Wh '} 4 I '}W I ~ YW Jlj II f lt Il IW [' 7 >>V I II kt t>> } L"W tV>> 4 7 t '0 W j;(N,.>>,' Wf 'W j<>4 ll << <>MW>> h Qf 4 MW- ~, W [4 W ( I I i<< f ~ W I ' (I ft, ~ NW F G H 1 TABLE2 2 WELD HISTORY 3 WELD DRAWING TREATMENT 5 HUhS EEL M. -5HZ GBQ R 123 B 24RRC(1)B-18/12CAP-1 RRC-102 SWLTO PIPE Nonconforming (6) X IHSI 9/83 124 B 24RRC(1) B-19 RRC-102 PIPE TO CROSS Nonconforming IHSI 9/83 125 B 24RRC(1)B-20 RRC-102 CROSS-REDUCER Nonconforming IHSI 9/83 126 B 16RRC(1)B-1 RRC-102 CROSS TO PIPE Non-conforming IHSI 9/83 127 A 16RRC(1)B-1/12RRC(l)kl2G RRC-102 PIPE TO SWL Conforming m X Nonconforming 128 A 16RRC(1)B-1/12RRC(1)-N2F RRC-102 PIPE TO SWL Conforming P) Nonconforming X 129 B 16RRC(l) B-2 RRC-102 PIPE TO CAP IHSI 9/83 130 B 16RRC(1)B-3 RRC-102 CROSS TO PIPE IHSI 9/83 131 A 16RRC(1)B4f12RRC(1)-N2J RRC-102 PIPE TO SWL Conforming m X 132 A 16RRC{l)84fl2RRC(1)-N2K RRC-102 PIPE TO SWL Conforming m X 133 B 16RRC{l)B4 RRC-102 PIPE TO CAP Nonconforming IHSI 9/83 134 B 12RRC(1)-N2F-1 RRC-102 SWLTO PIPE Nonconforming (8) IHSI 9/83 135 B 12RRC(1)-N2F-1A RRC-102 PIPE TO PIPE Nonconforming IHSI 9/83 136 A 12RRC(l)-N2F-2 RRC-102 PIPE TO EL Conforming P) -X 137 A 12RRC(1)-N2FN RRC-102 EL TO PIPE Conforming (7) X 138 A 12RRC(1)-N2FR RRC-102 PIPETOSE Conforming (9) X -X 139 G(11.17) 12RRC(1)-N2FW RRC-102 SE TO NOZ Nonconforming (10) 140 B 12RRC(l)-N2G-1 RRC-102 SWLTO PIPE Non-conforming (8) IHSI 9/83 141 B 12RRC(1)-N2G-1A RRC-102 PIPE TO PIPE Non-conforming IHSI 9/83 142 A 12RRC(1)-N2G-2 RRC-102 PIPE TO EL Conforming {7) X 143 A 12RRC(1)-N2G3 RRC-102 EL TO PIPE Conforming {7) X 144 A 12RRC(1)-N2G-4 RRC-102 PIPE TO SE Conforming (9) X X 145 G(11.17) 12RRC(1)-N2G6 RRC-102 SE TO NOZ Non-conforming (1 0) 146 B 12RRC(1)-N2H-1 RRC-102 SWLTO PIPE Non-conforming (8) IHSI 9/83 147 B 12RRC(1)-N2H-1A RRC-102 PIPE TO PIPE Non-conforming IHSI 9/83 148 A 12RRC(1)-N2H-2 RRC-102 PIPE TO EL Conforming (7) X 149 A 12RRC(1)-N2H-3 = RRC-102 ELTO PIPE Conforming {7) X 150 A 12RRC(l)-N2HQ RRC-102 PIPE TO SE Conforming (9) X X 151 G 11.1 1 1 -N2HW RRC-102 SE TO NOZ Non~nformin 10 Page 5 e ~ I 1 I wh .L W I r" 3 I i>> t t 3 fi ti,<<f ~I f;3 Mwt e e<< l C>> t k3 ~ J fR "'W ) t fl ~1 Pe wh LW eel Mk e I W r 3 ',! II ta I kf I il I ~ Wf if 3I k Wff If a h kfwa w 31 If f<<W I fl th Li1 II <<r'h ~ I 1 C W 'W ti il Wi, f il f Ja J If<< i I W >> fl j, I I<<<< li p W J ~ <<l e M' i' If W' 13 gf I <<I I<< I << I 1 w I wa,r<< ~ ~ i I

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,l<<3tMPlw, w,w3 3 '3 K i 1 rff, r)fl I rl;I)..3., hh ftwhfl t 0 1 k,. th 'k I '3 I w "f 3 ff hk I) .'fMMa << ~ <<. C F G H 1 TABLE2 2 WELD HISTORY 3 4 WELD DRAWING TREATMENT 5 Hl28BEEL Ha RK QBG R 152 8 12RRC(1)-N2J-1 RRC-102 SWLTO PIPE Nonconforming (8) IHSI 9/83 153 8 12RRC(1)-N2J-1A RRC-102 RPETO PIPE Nonconforming IHSI 9/83 154 A 12RRC(1)-N2J-2 RRC-102 PIPETO EL Conforming (7} X 155 A 12RRC(1)-N2J-3 RRC-102 EL TO PIPE Conforming P) X 156 A 12RRC(l)-N2J-4 RRC-102 PIPE TO SE Conforming (9) X X 157 G(11,17) 12RRC(1)-N2J4 RRC-1 02 SE TO NOZ Non-conforming (10) 158 8 12RRC(l)-N2K-1 RRG.102 SWLTO PIPE Non-conforming (8) IHSI 9/83 159 8 12RRC(l)-N2K-1A RRC-102 PIPETO PIPE Nonconforming IHSI 9/83 160 A 12RRC(l)-N2K-2 RRC-102 PIPETO EL Conforming P) X 161 A 12RRC(1)-N2KN RRC-102 EL TO RPE Conforming P) X 162 A 12FlRC(1)-N2K-4 RRC-102 RPE TO SE Conforming (9) X X 163 G(11,17) 12RRC(l)-N2KA RRC-102 SETO NOZ Nonconforming Nonconforming (10) 164 8 20RRC(6)-1 RRC-105 PIPE TO RED TEE Nonconforming IHSI 9/83 165 8 20RRC(6)-2 RRC-105 PIPETO EL Nonconforming IHSI 9/83 166 8 20RRC(6)N RRC-105 EL TO PIPE Nonconforming IHSI 9/83 167 8 20RRC(6)-4 RRC-105 PIPETO EL IHSI 9/83 168 8 20RRC(6)-5 RRC-105 EL TO PIPE Non-conforming IHSI 9/83 169 8 20RRC(6)W RRC-105 RPETO EL Nonconforming IHSI 9/83 170 8 20FlRC(6)-7 RRC-105 EL TO PIPE Non-conforming IHSI 9/83 171 8 20RRC(6)-7A RRC-105 RPE TO PIPE Nonconforming IHSI 9/83 172 8 20RRC(6)W RRC-105 RPE TO VALVE Nonconforming IHSI 9/83 173 8 12RRCP)A-1 RRC-106 VALVETO PIPE No~ nforming IHSI S/83 174 8 12RRCP)A-2 RRC-106 PIPETO EL Non-conforming IHSI 9/83 175 8 12RRCP)A-3 RRC-106 EL TO PIPE Non-coriforming IHSI 9/83 176 8 12RRC(7)A-4 RRC-106 PIPE TO EL Nonconforming Nonconforming IHSI 9/83 177 8 12RRCP)A-5 RRC-106 ELTO PIPE Non-conforming IHSI 9/83 178 8 12RRCP)A-6 RRC-106 RPETO SWL Nonconforming IHSI 9/83 179 8 12RRCP) 8-1 RRC-107 VALVETO PIPE IHSI 9/83 180 8 12 8-2A RRC-107 PIPETO RPE Non~nformin IHSI 9/83 '} 4 I 4 ) MM 'i, I'N NW N Y N t'l gN i) ' I V i Nk,'.Nr 4" II If i. 4'l,

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I H 'i ~,'rl N"V N I lt 'N M I M II I Mr I'g," , j IN ~ tf ' IMIN 'N } Ml.; I lf N, I V '.OI' Nt d~ W 4 4, ~ rf ff + 'lr A Ifl I . 4 kl ~ ffj NM} t>>fl N II ~4 w'l} ~ I II r>> II ' r>> ~ I/N N M v I N t 'N M fl tl r,'t C 2< 'N, I JI } M td It ~, N M }N I IN IN rr I N I M it tf M LV I Nv) r 'I ~ t 'I 4 M ~ It HI ~ ~ It I lrl, rtt/<<NH I I )g/M ",,t g'NM ~I, '} ',f $ /I HINW$ j t>>, I,, ~ ~ } '}ftt) }N kf ~ '}INN'I H r pic ~ 4 N} I I Q, ">> frttrtr fr}tf }N,Q )Q}}r} If "I Q}}W N(N . N C F G 1 TABLE2 2 WELD HISTORY 3 4 IGSCC DRAWING TREATMENT 5 HilMEEL HIL Z 181 12RRCP) 8-2 RRC-107 PIPE TO EL Non-conforming IHSI 9/83 182 12RRCP)B4 RRC-107 EL TO PIPE Nonconforming IHSI 9/83 183 12RRCP)$ 4 RRC-107 PIPE TO EL Nonconforming IHSI 9/83 184 12RRCP) 8-5 RRC-107 ELTO PIPE Non-conforming IHSI 9/83 185 12RRCP)B4 RRC-1 07 PIPE TO SWL Non-conforming IHSI 9/83 186 4RRC(4)A-1 RRC-108 SWLTO PIPE Non-conforming IHSI 5/86 187 4RRC(4)A-2 RRC-108 PIPE TOTEE Non-conforming IHSI 5/86 188 4RRC(4)A-3 RRC-108 PIPE TO REDUCER Non-conforming IHSI 5/86 189 4RRC(4)A-4 RRC-108 PIPE TO TEE Nonconforming IHSI 5/86 190 4RRC(4)A-5 RRC-108 TEE TO PIPE Non-conforming IHSI 5/86 191 4RRC(4)A-6 RRC-108 PIPE TO EL Nonconforming IHSI 5/86 192 4RRC(4)A-7 RRC-108 EL TO PIPE Nonconforming IHSI 5/86 193 4RRC(4)A-8 RRC-108 PIPE TO EL Non-conforming IHSI 5/86 194 4RRC(4)A-9 RRC-108 EL TO PIPE Non-conforming IHSI 5/86 195 Nonconforming 4RRC(4)A-10 RRC-108 PIPE TO VALVESE Nonconforming IHSI 5/86 196 4RRC(4)A-11 RRC-1 08 SE TO VALVE Nonconforming IHSI 5/86 197 4RRC(4) 8-1 RRC-109 SWLTO PIPE Nonconforming IHSI 5/86 198 4RRC(4) 8-2 RRC-109 PIPE TO TEE No~ nforming IHSI 5/86 199 4RRC(4) 8-3 RRC-109 PIPE TO REDUCER IHSI 5/86 200 4RRC(4) 8-4 RRC-109 PIPE TO TEE Non-conforming IHSI 5/86 201 4RRC(4)8-5 RRC-109 TEE TO PIPE Non-conforming IHSI 5/86 202 4RRC(4) B4 RRC-109 PIPETO EL Nonconforming IHSI 5/86 203 4RRC(4) 8-7 RRC-109 EL TO PIPE Nonconforming IHSI 5/86 204 4RRC(4) 8-8 RRC-109 PIPETO PIPE Nonconforming IHSI 5/86 205 4RRC(4) 8-9 RRC-109 PIPE TO EL Nonconforming IHSI 5/86 206 4RRC(4) 8-1 0 RRC-109 EL TO PIPE Nonconforming IHSI 5/86 207 4RRC(4) 8-11 RRC-109 PIPE TO VALVESE Nonconforming IHSI 5/86 208 4RRC(4) 8-12 RRC-109 SE TO VALVE Non-conforming IHSI 5/86 209 D13 12RFW 1 C-13 RFW-101 NZTO SE Non~nformin 14 Page 7 II II t Nl 1 'y ~N CN N, C l 1 1 1 Ifl 1 1 1 IN 1 1 1'1 1 1;1 fr r fr J1 ~1 If If N lf fC =N 3 l 'I sl A f 1 lN y N -r lr 0 ) 1 r N 1 ~ ICN 'I II Ny r y r I'I) I) I l 1 gtr NN fl ~ ) ri N rl Ifr N I I 'Nil il l" "NN I 1 ffr r If t II 1 g'I ) fr N I I I 1 I f-( fr SNN jf N NN ry ) IJN Nr/ J LJD y 4 I f1'f If N I I r I f, 1 1 1 lf N ll ' -r ll r 4 ' ll y ~ I grrf 'I' qk+r Ill ,>> Nt t N C F G H 1 TABLE2 2 WELD HISTORY 3 4 WELD DRAWING TREATMENT 5 HilhSEEL HO. ldhxEBlhQD 5HZ QBQ R 210 A(13) 12RFW(1)AC-12 RFW-101 SESTUBTOSE Conforming(12) 211 A(13) 12RFW(l)AC-11 RFW-101 SE EXTNE STUB Conforming(15) 212 D(13) 12RFW(1)AB-11 RFW-101 NZTO SE Non~nformlng(14) 213 A(13) 12RFW(1)AB-10 RFW-101 SE STUB TO SE Conforming(12) 214 A(13) 12RFW(l)AB-9 RFW-101 SE EXT-SE STUB Conforming(15) 215 D(13) 12RFW(1)AA-11 RFW-101 NZTO SE Non-conforming(14) 216 A(13) 12RFW(1)AA-10 RFW-101 SE STUB TO SE Conforming(12) 217 A(13) 12RFW(l)AA-9 RFW-101 SE EXTNE STUB Conforming(15) 218 D(13) 12RFW(1)BD-11 RFW-102 . NZTO SE Non~nformlng(14) 219 A(13) 12RFW(1) BD-10 RFW-102 SESTUBTOSE Conforming(12) 220 A(13) 12RFW(1)BD-9 RFW-102 SE EXTNE STUB Conforming(15) 221 D(13) 12RFW(1)BE-11 RFW-102 NZTO SE Non~nforming(14) 222 A(13) 12RFW(1)BE-10 RFW-102 SESTUBTOSE Conforming(12) 223 A(13) '12RFW(l) BE-9 RFW-102 SE EXT-SE STUB Conforming(15) 224 D(13) 12RFW(1)BF-14 RFW-102 NZTO SE Nonconforming(1 4) 225 A(13) 12RFW(1)BF-13 RFW-102 SE STUB TO SE Conforming(12) 226 - A(13) 12RFW(1) BF-1 2 RFW-102 SE EXT-SE STUB Conforming(15) 227 G(11.13) 10HPCS(1)C HPCS-101 NZTO SE Non~nformlng(1 4) 228 A(13) 10HPCS(1)N HPCS-101 SE EXTTO SE Conforming(16) 229 D(13) 10LPCS(1)Q LPCS-101 NZTO SE Non-conforming(14) 230 231 A(13) 10LPCS(1 + LPCS-101 SE EXTTO SE RHR-101 NZTO SE Conforming(16) D(13) 12LPQ(1)AA Non~nforming(14) 232 A(13) 12LPCI(1)AN RHR-101 SEEXl TOSE Conforming(l 6) 233 G(11,13) 12LPCI(1) E8 RHR-102 NZTO SE Non~nformlng(14) 234 A(13) 12LPQ(1)B-5 RHR-102 SE EXTTO SE Conforming(16) 235 G(11.13) 12LPQ(1)G8 RHR-103 NZTO SE Non~nforming(14) 236 A(13) 12LPQ(1)C5 RHR-103 SE EXTTO SE Conforming(16) 237 238 Page 8 I ii I>> I'PII I I F Ih II LP' hh I t I' (' fh e I ) ..hl h>>t '1 1>> >> ht I' I 3 <<j 1ll li 'l 1" Lsl Il x" 'I II 't '\ hil >> Ih ~ tt ( Il >> ( >> Fh Kl )II ('h) ~ .'lls P~ Ph "IA ht FJ II I t >>J M IIC h <<> >>I e 6 4 ,F% P ..I I>> 1 l 't!0 'r h>> P I ~ I J ~ rIFP 1 y ~ 'X ~ II I E ~ F t Il ll l'P', 1" 1I g1>>f 'I Etlh 0>>'>><<I(PPI' 'P . >>R) f,-y>>,1>>III, h, P"...>Iirlh<<1~ Pyh]gphhs>> Lr I,F,<<~ Its!FP, C P>> I'IP <<'>>V')I PP>>h" Ij hh  !'h Mi!(P<< V>> ,htl 'IFII j I > p'>>I g'>>" P ll I ~ 'P . ~ F<<gpss / fl'F'>>g j'lit Pf, >>II( "I y Pyll>yt I lit ilt ~ >>>>>> ,,hl I "I I>> ph I' il C D F G H 1 TABLE2 2 WELD HISTORY 3 4 DRAWING 5 lKL 239 hKKER 240 1 Unless othe+vise noted. all material is regular grade type 304 or 316. 241 2 SA 508 CI 2 nozzle, buttered with Inconel 182 weld metal, welded to 336 F8 (0.025 C) Safe end. 242 with Inconel 82 weld metal 243 3 SA 336 F8 Safe end with 0.025% carbon 244 4 Yalve is carbon steel 245 5 SA 508 CI 2 nozzle. buttered with Inconel 182 weld metal. Post weld heat treated. Welded 246 to SA 336 F8 Safe end (with 0.020 carbon content) with Inconel 82 weld metal for root/hot pass 247 and Inconel 182 for balance. 248 6 CRCon cap side only 249 7 Regular grade type 304. Weld was SHT aAer welding 250 8 Nozzle side non-conforming. Rpe side solution heat treatment after corrosion resistent dadding. 251 9 Pipe side SHT after CRC. Safe end Type 316L ((0.025 Carbon) 252 10 SA 508 Cl 2 nozzle, buttered with Inconel 182. Original lnconel 600 safe~nd removed. New 316L 253 safe end with Inconel 182 butter on the nozzle side of the safe end welded to 254 original Inconel 182 buttering with lnconel 82 weld metal for the butt weld. 255 ll After this weld is examined at R7 it will be redassified as category D 256 12 Considered conforming, with lnconel 600 safe end and SE stub welded with 257 Inconel 82 weld material exposed to the fluid media. 258 13 This weld added to GL 8841 scope 259 14 Inconel 182 buttering on safe end welded to Inconel 600 SE with Inconel 182 weld metal 260 root/hot pass and Inconel 182 for balance. 261 15 Considered conforming. with Inconel 600 safe end, stub and carbon steel safe end extension 262 welded with lnconel 82 weld material exposed to the fluid media. 263 16 Considered conforming, with lnconel 600 safe end welded to carbon steel safe end extension 264 with Inconel 82 weld material exposed to the fluid media. 265 17 Weld redassified from categoty Ato G 266 267 Page 9 4, ~ M 4 M I' 'I ~ e r I .4 r ".a L O'I 1 '44 I Mj ~ J t Itt ~ I 'III 4fl 'v PI 4 5 4 K <9 a, Il t 45 N I L) M a. I', 44 19fe- t II t,v [ Vt r Mt Mfjl e \I II II F G H 1 TABLE2 2 WELD HISTORY 3 4 DRAWING TREATMENT 5 HQ. SEC QBQ S. 268 26S 270 WELD 271 SHT Solution heat treated NUMBER 272 CRC Corrosion resistant cladding KEY 273 IHSI Induction heating stress improvemnet 24RRC(2)AW unique ISI weld number 274 SE safe-end 24 pipe size (nominal inches) 275 EL elbow RRC(2) system name and number 276 NOZ, NZ nozzle A loop of multi-loop system 277 SWL swee let weld se uence number Page 10 4 4 ,'4 t 4 54, 4 I kd 4 4 4 4 L) 4 I,I Iy N a I 4 4 4 II h,r d KQ >d Pl, 4)d N 1, I;, ~g d 4 4 4 I r ~ ) 1 t" 44 ~ I V, k 4 4 IF) ld )A C D E F G H J K L M N 0 P Q 1 TABLE3 2 INSPECTION HISTORY A 3 4 IGSCC WELD PAST OUTAGES RAW FUTURE OUTAGES (3) 5 QKXQQBY HUhlBEBQ. B1 BR BR M BR 86 EQllb82g). BZ BR BR BM 811 812 81R 6 7 G(4) 4JP(NZ)A-1 0+ X 8 A 4JP(NZ)A-2 0+ X 9 G(4) 4JP(NZ) B-1 0+ X 10 A 4JP(NZ) B-2 0+ X ll B 20RHR(2)-1 XP) 0-12 B 20RHR(2)-2 X{7) 0-13 B 12RHR(1)A-1 4 14 B 12RHR(1)A-1 5 15 B 12RHR(l)A-1 6 X X 16 B 12RHR(1)A-1 7 X X 17 B 12RHR(1)A-1 8 X X 18 B 12RHR(1)B-10 X 19 B 12RHR(1)B-11 X 20 B 12RHR(1)B-12 X 21 B 12RHR(1)B-13 X 22 G(4) 24RRC{2)A-1 0+ X 23 - B 24RRC{2)A-2 0+ X 24 B 24RRC(2)A-3 0+ X 25 B 24RRC{2)A-4 26 B 24RRC(2)AS 27 B 24RRC(2)A-6 28 B 24RRC(2)A-7 29 B 24RRC(2)A-8 30 B 24RRC(2)A-9 31 B 24RRC(2)A-1 0 32 B 24RRC(2)A-1 0/4 RRC(8)-4S X X X 33 B 4RRC(8)2A-1 X X 34 B 4RRC(8)2A-2 X X 35 B 24RRC(2)A-1 0/4 RRC(4)~ X X X 36 B 24RRC(2)A-1 1 37 B . 24RRC(2)A-12 38 B 24 1 -13 Page 1 If'~ I tl 'I I/i T ll ft ~ q r I ll '5 P ,P ~ r I T Mft ",1 "j7 Ilr t le I *t LTM ', I tl M B C D E F G H J K L M N 0 P Q TABLE 3 2 INSPECTION HISTORY 3 4 IGSCC WELD PAST OUTAGES FLAW FUTURE OUTAGES (3) 5 QLIHaQEf. 5ilhKH JR'. Bl B2 BR EL4 BK BS EQLlhlDg). BZ BR BR B19 811 B12 81R 6 39 8 24RRC(1 )A-1 3/8CAP X X 40 8 24RRC(1)A-13/8CAP-1 X X 41 8 24RRC(1)A-13/4RRC(8)-4S 42 8 4RRC(8) lA-1 X X 43 8 4RRC(8)1A-2 X X-44 8 24RRC(1)A-14 45 8 24RRC(1)A-1 5 as 8 24RRC(1)A-1 6 47 8 24RRC(1)A-1 7 48 8 24RRC(1)A-1 8 49 8 24RRC(1 )A-l9 50 8 24RRC(1)A-20 51 8 24RRC(1)A-2M2RRCP)-4S X O+ 52 8 24RRC(1)A-20fl2CAP X 53 8 24RRC(1)A-2M2CAP-1 54 8 24RRC(1 )A-21 55 8 24RRC(l)A-22 56 8 16RRC(1)A-1 57 A 16RRC(1)A-lfl2RRC(1)-N2D X 58 A 16RRC(1 )A-l/12RRC(1)-N2E X 59 8 16RRC(1)A-2 X 60 8 16RRC(1)AN X 61 A 1SRRC(1)A3!1 2RRC(1 )-N28 X 62 A 16RRC(1)A~2RRC(1)-N2A X 63 8 16RRC(l)A-4 X 64 8 12RRC(l)-N2A-1 X 65 8 12RRC(1)-N2A-1A 6S A 12RRC(1)-N2A-2 67 A 12RRC(1)-N2AN 68 A 12RRC(l)-N2A-4 69 G(4) 12RRC(1)-N2AW 70 8 12 1 -N28-1 Page 2 It n/ II V n 4>>" p I I PP I' ~ I+I I I ~ T n II n 'I 'I ~ >> ~ p 4 ) an n- I ~n I>> n'l "I P.I (n iv IP" >>IJ I'9 n nav>>v >>A ~ ~ n* V f p+>fW p ') I -n>>n hp>>'n t m C D E F G H J K L M N O P Q 1 TABLE3 2 INSPECllON HISTORY 3 4 IGSCC WELD PAST OUTAGES FLAN FUTURE OUTAGES (3) 5 GhXHaOHX HllldBEBD). Bl BR BR B4 E5 BR EQlllhlQ2). BZ BR BB BiQ 811 812 B1R 6 71 8 12RRC(1)-N28-1 A 72 A 12RRC(1)-N28-2 73 A 12RRC(1)4I2B4 74 A 12RRC(1)-N2B4 75 G(4) 12RRC(1)-N28-6 76 8 12RRC(1)-N2C-1 X 77 8 12RRC(1)-N2C-1A X 78 A' 12RRC(1)-N2C-2 79 12RRC(l)-N2C3 80 A 12RRC(1)4I2C'A X 81 G(4) 12RRC(1)-N2C6 X 82 8 12RRC(1)-N2D-1 83 8 12RRC(1)-N20-1A 84 A 12RRC(1)-N20-2 85 A 12RRC(1)-N204 86 A 12RRC(1)-N20-4 87 G(4) 12RRC(1)-N2D4 88 8 12RRC(1)-N2E-1 89 8 12RRC(1)-N2E-1A SO A 12RRC(1)-N2E-2 91 A 12RRC(1)-N2EN S2 A 12RRC(1)-N2EQ 93 G(4) 12RRC(1)-N2E-6 X S4 95 G(4) 8 24RRC(2) 8-1 24RRC(2) 8-2 p+ X f ~ S6 8 24RRC(2) B4 97 24RRC(2)~ 98 8 24RRC(2) 8-5 99 8 24RRC(2) B4 100 8 24RRC(2) 8-7 101 8 24RRC(2) B4 102 8 24 2 B4/4 8~ X Page 3 ~ ~ 4 W ek IL I 4 ~ I 4 )I =- 1 l 1 L If' L 4 1 k Nv);, ff N V 'I If N ~ v ~ ~ fv ' 4 JN I/O c' e u'LN," 'I VI ='N'N lv Il P y f~ ,1 <<>> 1 <<3 'f 4) II j Hvl vv I e<<,L w>> PN<< N ~ 4 3 "f ii 1 L 4 ~ 0 INN, I W 1>> HI ) L II () ,'H 4 I Ik,Hit>> HN N 'N'HN) - N " )>>)if'.v(Cefl(effl ei H ~ -' C D E F G H J K L M N 0 P Q 1 TABLE3 2 INSPECTION HISTORY 3 4 IGSCC WELD PAST OUTAGES FLAW FUTURE OUTAGES (3) 5 ChIEGQEK HUldBKBDl Bl B2 BR E4 BR BG EQLlhl@2). BZ BR BR 819 Bl1 Bl2 812 6 103 8 4RRC(8)28-1 X 104 8 4RRC(8)28-2 X 105 8 24RRC(2)B4I4RRC(4}~ X X 106 8 24RRC(2)B-9 X 107 8 24RRC(2)B-10 X 108 8 24RRC(l) 8-11 X 109 8 24RRC(1)B-ll/&CAP X 110 8 24RRC(1) 8-11/8CAP-1 111 8 24RRC(1)B-ll/4RRC(8)~ X 112 8 4RRC(8)1 8-1 X 113 8 4RRC(8)1 8-2 X 114 8 24RRC(1) 8-12 115 8 24RRC(1) 8-13 116 8 24RRC(1) 8-14 117 8 24RRC(1) 8-15 118 8 24RRC(1) 8-16 119 8' 24RRC(1) 8-17 120 24RRC(1) 8-18 121 8 24RRC(1)B-1&n2RRC(7)-4S X 122 8 24RRC(1)B-18fl2CAP X 123 8 24RRC(1) 8-1 &f12CAP-1 124 8 24RRC(1) 8-19 125 8 24RRC(1) 8-20 126 8 16RRC(1)B-1 X 127 A 16RRC(1)8-1/12RRC(l)-N2G X 128 A 16RRC(1) 8-1 f12RRC(1)-N2F X 129 8 16RRC(1)8-2 130 8 16RRC(1) B4 131 A 16RRC(1) B3/12RRC(l)-N2J X 132 A 16RRC(l) 84I12RRC(1)-N2K X 133 8 16RRC(1)84 134 8 1 1 -N2F-1 Page 4 I"-<< '(~v I '4 y r t K Il II ~ y II 'I r 4>>J V' << "4 ~ 'T y <<4<< y y t4 I') ), 'y ft> f. T '>>Q'<< ' t tyt "4 '<< I I I' r 'yf" 4 I ~ f y 4 H r ~ K a I fr tt ~ << ytrr Ir ',I,

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f'il lf (r jjp g P'I ill II ~, . j 141 fC>> ~ ftfJ jf li 1>> f>>l p" j I >>. 11 Vl pi Af >> Cj fr, f jj>> 4 jJQIfj>>4 ~I I I C".} 441'I ~i>> 44 4'4 4 I) tile>> f, '*>> ll " ff fj ~ >> pI C D E F G H J K L M N 0 P Q 1 TABLE3 2 INSPECTION HISTORY 3 4 PAST OUTAGES FLAW FUTURE OUTAGES (3) 5 81 82 BR E4 BR BS EQLHKg@ BZ HR BR 81Q EU1 B12 812 6 199 B 4RRC(4)m X 200 B 4RRC(4) B-4 X X 201 B 4RRC(4) E6 X X 202 B 4RRC(4) B-6 X 203 B 4RRC(4) B-7 X 204 4RRC(4) B4 X 205 B 4RRC(4)B-9 X 206 B 4RRC(4) B-10 X 207 B 4RRC(4) B-11 X X 208 B 4RRC(4) B-1 2 X X 209 D(5) 12RFW(l)AC-13 X 210 A(5) 12RFW(1)AC-12 X X 211 A(5) 12RFW(l)AC-11 X X 212 D(5) 12RFW(l)AB-11 X 213 A(5) 12RFW(1)AB-10 X X 214 A(5) 12RFW(l )AB-9 X X 215 D(5) 12RFW(l )AA-11 X 216 A(5) 12RFW(1 )AA-10 X X 217 A(5) 12RFW(1)AA-9 X X 218 D(5) 12RFW(l)BD-11 X 219 A(5) 12RFW(1 ) BD-1 0 X X 220 A(5) 12RFW(l)BD-9 X X 221 D(5) 12RFW(l ) BE-11 X 222 A(5) 12RFW(1) BE-1 0 X 223 A(5) 12RFW(1)BE-9 X 224 D(5) 12RFW(l)BF-14 X 225 A(5) 12RFW(l) BF-13 X 226 A(5) 12RFW(1) BF-12 X 227 G(4,5) 10HPCS(1)X 228 A(5) 10HPCS(1)N 229 D(5) 10LPCS(1)P X 230 A 10LPCS 1 N X Page 7 NI '\ C "I b NN' y Nl e b IN h e lb E P, b // E/, y k, I b11 "N I 'I / Pfl <<) l.' n e ~ y e N 'I 'I /N 7) if/ lI NIN 7 Ny/ I 'N I fy '/ I ~ y lb A,r 'bI I' bb <.-El )g ~ l '"N bp / E, ~ NI y b '"N , riN, ~, ~" /jfI,IE NNy 'N" t" N l /'ey N I'/ENH' 'Pp b/', N N'bi]~" ~ "-';/> - QNNy '"JIE/,I ./N c, A C D E F G H J K L M N 0 P Q 1 TABLE 3 2 INSPECTION HISTORY 3 IGSCC WELD PAST OUTAGES FLAW FUTURE OUTAGES (3) 5 QhIEGOEt'. hNhlBEB0), Bl ER BR E4 EK BG EOllHQ2). B1 BR BR EM 811 812 812 6 231 12LPCI(1)AW X 232 A(5) 12LPCI(1)AW X 233 G(4,5) 12LPCI(1) B4 234 A(5) 12LPCI(1)~ 235 G(4,5) 12LPCI(1)~ 236 A(5) 12LPCI(l)C-5 237 238 HQXES 239 (1). See Table 2 for configuration and location 240 (2) One flaw has been found in the welds within the scope of Generic Letter ~1 241 (3). The Supply System may modify this schedule by substituding welds or changing the outage in which they are examined 242 (4) This weld will be redassified to categonj 0 following examination at R7 243 (5) This weld added to GL8$ 41 scope 244 (6) This weld redassifed to categoty F pending examination results at R7 245 (7) Weld examined as part of weld 20RRC(6)-8 sample expansion. 246 0+ Examination moved to later outage 247 0- Examiantion moved to earlier outage 248 249 Quhaa 250 Rl 4fl986 1 251 R2 4n S87 1 252 R3 4/1S88 1 253 R4 4fl98S 2 254 R5 4f1 990 2 255 R6 4flS91 2 256 R7 4/1992 -3 257 R8 4fl993 3 258 RS 4fl994 3 259 Rl0 4fl 995 1 260 Rl 1 4/1996 1 261 R12 4/1997 1 262 R13 4fl998 2 Page 8 h JV 1 fl~ el fl ng V>> I l ~ ffhe =f >>) h h J V ee h e kl I h fl, \ n 4 gl>>, 1>> h 1 l'eh ~ hf Tg e" If I) I', I, I I 'I r ff I j lh > I gr I H H h>iigh fl "P I VVJ II 111}}