BECO-88-119, Forwards Response to Generic Ltr 88-01, NRC Position on IGSCC in BWR Austenitic Stainless Steel Piping

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Forwards Response to Generic Ltr 88-01, NRC Position on IGSCC in BWR Austenitic Stainless Steel Piping
ML20151R149
Person / Time
Site: Pilgrim
Issue date: 08/04/1988
From: Bird R
BOSTON EDISON CO.
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
RTR-NUREG-0313, RTR-NUREG-313 BECO-88-119, GL-88-01, GL-88-1, NUDOCS 8808120071
Download: ML20151R149 (26)
v • d • e


Text

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GL 88-01 1

f BOSTON EDtSON Pilgnm Nuclear Pmver station Rccky Hill Road Plymouth, Massachusetts 02360 Ralph G. Bird BECo 88- 119 serior Vice President - NJclear U. S. Nuclear Regulatory Commission August 4, 1988 Document Control Desk Hashington, DC 20555 License DPR-35 Docket 50-293 RESPONSE TO GENERIC LETTER 88-01:

NRC POSITION ON IGSCC IN BHR AUSTENITIC STAINLESS STEEL PIPING Generic Letter (GL) 88-01 transmitted 13 new staff positions relative to intergranular stress corrosion cracking (IGSCC) near weldments in Boiling Hater Reactor (BHR) piping. NUREG 0313, Revision 2 described the technical bases for the staff positions and was included as an attachment. All BWR licensees were requested to assess the staff positions for conformance or propose alternative measures, and supply information relating to piping replacement, inspection, repair and leakage.

This letter provides our response to GL 88-01. Attachment A describes our assessment and conformance relative to the guidance of NUREG 0313 Revision 2 and the 13 staff positions included in GL 88-01. Attachment B is a listing of the IGSCC susceptible welds re.naining at PNPS.

R. G. RYA -

Attachments: A) Response to Generic Letter 88-01 B) IGSCC Susceptible Helds GGH/amm/2317 cc: See Next Page Commonwealth of Hassachusetts) I

(

County of Plymouth )

Then personally appeared before me, Ralph G. Bird, who being duly sworn, did state that he is Senior Vice President - fluclear of Boston Edison Company and l

that he is duly authorized to execute and file the submittal contained herein l

in the name and on behalf of Boston Edison Company and that the statements in l said submittal are true to the best of his knowledge and belief. ..

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, . BOSTON EDISON COMPANY August.4, 1988 U. S. Nuclear Regulatory Commission Page 2 cc: Mr. D. Mcdonald, Project Manager Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Mail Station P1-137 Washington, DC 20555 U. S. Nuclear Regulatory Commission Region I 475 A11endale Road King of Prussia, PA 19406 Senior NRC Resident Inspector Pilgrim Nuclear Power Station r

ATTACHMENT A TO BECO LETTER 88-119 Resoonse to Generic Letter 88-Q1 This attachment provides the Boston Edison Company response to Generic Letter 88-01. Each of the 5 responses was determined by assessing our conformance to the 13 staff positions provided in Attachment A of the generic letter. The related sections of NUREG 0313, Revision 2 were also used as guidance.

Each response item was assigned the appropriate staff position as follows:

  • For Item 1, staff positions 1 through 8 were reviewed
  • For Item 2, staff positions 9, 10, and 11 were reviewed
  • For Item 3, no staff position was provided
  • For Item 4, staff position 12 was reviewed
  • For Item 5, staff position 13 was reviewed Each item is quoted from GL 88-01, followed by our response.

For Item 1 orovida:

Your current plans regarding pipe replacement and/or other measures taken or to be taken to mitigate IGSCC and provide assurance of continued long-term piping integrity and reliability.

Resoonsg:

During Refuel Outage Six (Dec. 1983 to Dec. 1984), we replaced the entire Recirculation System piping and portions of the Residual Heat Removal (RHR)

System, Core Spray (CS) System and Reactor Water Cleanup (RHCU) System l piping. The replacement material consisted of 316NG seam welded piping with shop applied solution heat treatment during fabrication, unless otherwise specified. The system components affected included:

  • The replacement of Recirculation Loops A and 8 with 316NG material,

! and the removal of the 22" equalizer valves and their respective bypass lines.

  • The replacement of Reactor Pressure Vessel safe-ends at recirculation inlets & outlets for Loops A and B with 316NG Haterial.
  • For RHR:

Replacement of the 20" supply piping from the recirculation piping tie-in to containment penetration X-12 (ISI weld No.

10-0-I to ISI weld no.10-0-14) with 316NG material .

Replacement of two 18" return lines from the reactor containment l penetrations X-51 A and X-51B to the recirculation piping tie-ins, but not including the penetrations, with 316NG material.

1 l

l

ATTACHMENT A TO BECO LETTER 88-119

- - Replacement of the RHR "B" loop piping outside the containment from ISI weld nos. 10-IB-14 thru 10-IB-16 with 316NG material.

Last Pass Heat Sink Helding (LPHSH) on ISI weld nos. 10R-IA-12 and 10R-IB-12.

- Application of Corrosion Resistant Cladding (CRC) to the penetration X-518 flued head welds with 308L material.

  • For CS:

The replacement of CS Loops A and B from the in-board manual valves 6A and 68 to the reactor containment penetration X-16A and X-168 (but not including the penetrations), with 316NG material.

The replacement of the CS "B" Loop piping outside containment, containing ISI weld no.14-B-21, with 316L material.

LPHSH on ISI weld nos. 14R-A-16 and 14R-B-16.

  • For RHCU:

The replacement of the RHCU piping from the branch connection on the RHR piping to the reactor containment penetration (X-14),

(but not including the penetration), with 316 NG Haterial.

LPHSH on ISI weld no. 12R-0-23.

In addition, piping 2" and smaller that branch from the new large bore pipe were replaced with 316L material.

IGSCC mitigation efforts include implementation of Hydrogen Water Chemistry (HHC), limited Heat Sink Helding (HSH) and limited Corrosion Resistant l Cladding (CRC). Other remedies commonly applied in BHR piping such as

Induction Heating Stress Improvement (IHSI) have not been used for IGSCC l susceptible Class I piping at PNPS. There are no unrepaired cracked welds I remaining in-service at PNPS. However, a weld overlay repair was performed on I

a cracked jet pump instrument seal weld (No. RPV-N9A-1).

HNC is expected to provide protection against IGSCC in the RHR, RHCU, Recirculation Systems piping and weldments, Core Spray System piping, and the overlay repaired jet pump instrument seal. During our current refueling outage, (RF0 #7), we installed a Crack Arrest Verification System (CAVS) to monitor crack growth and demonstrate the mitigating effects of HHC. License Amendment 118 dated 06/17/88, revises the PNPS Technical Specifications to accommodate permanent installation of the HNC system.

Remaining piping susceptible to IGSCC is being inspected as referenced in our i letter dated 05/06/87 "IGSCC Augmented Inspection Program Supplemental Information" which provided a summary of BECo's correspondence regarding our GL 84-11 augmented inspections for IGSCC. Our response to item 2 of GL 88-01 provides an update to our IGSCC Augmented Inspection Program.

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! 2 i

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, ATTACHMENT A TO BECO LETTER 88-119 For Item 2 Provide:

An Inservice Inspection (ISI) Program to be implemented at the next refueling outage for austenitic stainless steel piping covered under the scope of this letter that conforms to the staff positions on inspection schedules, methods and personnel, and sample expansion included in this letter.

Resoonse:

He conform to staff positions 9 and 10 and offer an alternative method of conformance to staff position 11.

For staff position 9 "Inspection Methods and Personnel":

Inspection procedures, equipment, and examination personnel used to perform inspection on piping welds within the scope of GL 88-01 will be in accordance with the requirements of GL 88-01 and will be aualified under the EPRI/NRC/BHROG NDE Coordination Plan for IGSCC Rescarch.

For staff position 10 "Inspection Schedules":

He are revising the appropriate procedure and/or instructions to reflect the new IGSCC augmented inspection schedules as required by GL 88-01.

Attachment B to this letter is a list of the IGSCC - susceptible welds remaining at PNPS identified by component identification number, description, isometric number, system, line number, and category.

The following is a brief description of the schedules for inspection:

Category A

  • IGSCC resistant welds 7 (20% per outage) Category A circumferential piping welds and the adjacent longitudinal seam welds will be inspected during each upcoming outage.

Category D e Non-resistant welds, previously inspected 41 (50% per outage) Category D welds will be inspected during RF0 #8 and 45 during RF0 #9. The increase is due to the planned inspection of 8 category G welds during RF0 #8. After this initial inspection these 8 welds will be considered Category D, 50% of which will thereafter be inspected every other refueling outage.

Category E

  • Overlay Repair The single existing weld overlay (RPV-N9A-1) will be inspected during RF0
  1. 8, and every other refueling outage thereafter.

Category G e Non-resistant not previously inspected Twelve IGSCC susceptible piping welds have not previously been inspected and are therefore considered Category G per GL 88-01. Following inspection as Category G welds during RF0 #8 eight of these welds will be reclassified as Category D.

3

ATTACHMENT A TO BECO LETTER 88-119 i l

Four Category G piping welds have not been inspected due to their ,

inaccessibility to UT inspection methods. Two welds (12-I-20 and 12-I-22) will be monitored for leakage by daily plant operator tours. The l remaining two welds (10-IA-13A and 10-IB-138) are located within drywell I penetrations. Held number 10-IB-13A is a Corrosion Resistant Clad weld I but is inaccessible. Any leakage from these welds will be monitored by the Drywell Leakage Detection System.

For staff position 11 "Sample Expansion":

He propose the following alternative to exact conformance to your position.

This alternative will allow us the option to reduce the size of expanded samples when technically justified.

In the event that cracks are found in IGSCC category A, B, or C piping welds during the 10 year interval, an additional sample of welds approximately equal in number to the original sample will be inspected. The size and distribution of an expanded sample will be subject to a technical justification / evaluation by the Boston Edison Nuclear Engineering Department using the guidelines provided by GL 88-01 (NUREG-0313, Revision 2) and the appropriate ASME Section XI code sections.

The staff position allows for technical evaluation for determination of sample expansion distribution (according to pipe size, system and location) when cracks are found. An excerpt from the staff position on Sample Expansion states; "This additional sample should be similar in distribution (according to pipe size, system, and location) to the original sample, unless it is determined that there is a technical reason to select a different distribution."

For Item 3 submit:

A change to the Technical Specifications to include a statement in the section on ISI that the Inservice Inspection Program for piping covered by the scope of this letter will be in conformance with the staff positions on schedule, methods and personnel, and sample expansion included in this letter (see enclosed model BWR Standard Technical Specification). It is recognized that the Inservice Inspection and Testing sections may be removed from the Technical Specifications in the future in line with the Technical Specifications Improvement Programs. In this case, this requirement shall remain with the ISI section when it is included in an alternative document.

Resoonse:

Section 3/4.6.G. "Structural Integrity", of the PNPS Technical Specifications,

. contains reference to appropriate ASME codes and to the ISI Program for l Pilgrim Station. IGSCC inspections, conducted to comply with Generic Letter l 84-11, are considered ISI Program related augmented inservice inspections l (

Reference:

10CFR50.55a(g)(6)(ii)). Because the GL 84-11 requirements have been superseded by GL 88-Oi, we now consider GL 88-01 inspections to be augmented inspections. As such, any technical specification change to specifically reference GL 88-01 would be redundant to that which is presently

[ in the PNPS Technical Specifications and required by the Code of Federal l Regulations.

4 1

ATTACHMENT A TO BECO LETTER 88-119 Also, using the 3 criteria provided in the NRC Interim Policy Statement on scope and purpose of Technical Specifications, (52 FR 3788) dated 02/06/87, we have determined that the addition of a reference to Generic Letter 88-01 does not meet any of the criteria.

For these reasons, we have determined that a reference to GL 88-01 will not be requested for the PNPS Technical Specifications.

For Ite'n 4 include:

Confirmation of your plans to ensure that the Technical Specification related to leakage detection will be in conformance with the staff position on leak detection included in this letter.

Resoonse:

A Boston Edison letter, dated 02/04/85, from Mr. H. D. Harrington to Mr. D. B.

Vassallo, proposed Technical Specification changes in accordance with guidance provided by Generic Letter 84-11. This request remained open pending issuance of the NUREG 0313 revision and is assigned TAC number 56835. A comparison between GL 84-11 and GL 88-01 requirements identified only minor editorial differences. Therefore, no further Technical Specification changes beyond those already requested are considered necessary.

For Item 5 orovide:

In accordance with 10CFR50.55a(g), your plans to notify the NRC of any flaws identified that do not meet IH8-3500 criteria of Section XI of the Code for continued operation without evaluation, or a change found in the condition of the welds previously known to be cracked, and your evaluation of the flaws for continued operation and/or your repair plans.

Resoonse:

Reportability to the NRC of disco'/ered flaws in piping is addressed by present PNPS corrective action processes that will be revised prior to the next scheduled inspection to accommodate the notification requirements of GL 88-01.

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ATTACHMENT B TO BECO LETTER 88-119 IGSSC - SUSCEPTIBLE HELDS AT PNPS PER NRC GENERIC LETTER 88-01 l

LEGEND FQB DATABASE l l

All_ weld numbers are taken from ISI isometric drawings Line number format: XX-YY-ZZ Hhere: XX - pipe nominal o.d.

YY - pipe material per BECO specification M-300 ZZ - system number Component ID No. Suffixes:

XX-XX-XXLU - upstream longitudinal seam weld XX-XX-XXLD - downstream longitudinal seam weld l

l XX-XX-XXALU - inside radius upstream longitudinal seam weld l

XX-XX-XXBLU - outside radius upstream longitudinal seam weld 1

l XX-XX-XXALD - inside radius downstream longitudinal seam weld XX-XX-XXBLD - outside radius downstream longitudinal seam weld l

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l g ,y , - , - , me, y ,,sp-- - r y

ATTACHMENT B IGSCC-SUSCEPTIBLE WELDS AT PNPS PER NRC GENERIC LETTER 88-01

.......... COMPONENT ID NO.. COMPONENT............ ISOMETRIC NO. SYSTEM ID LINE NUMBER.. IGSCC...

DESCRIPTION CATEGORY ,

10R-IA-1 PIPE TO TEE ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-10 PIPE TO ELBOW ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-10ALD LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-10BLD LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-10LU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-11 ELBOW TO PIPE ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-11ALU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-11BLU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-11LD LONG SEAM ISI-I-1f-1 RHR 18-DCA-10 IGSCC A 10R-IA-12ALD LONG SEAM ISI-I-10-1 RHR 18-DCA-10. IGSCC A 10R-IA-12BLD LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-1A PIPE TO PIPE ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-1A-LD LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-1A-LU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-1LU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-2 ELBOW TO PIPE ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-2ALU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-2BLU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-2LD LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-3 PIPE TO ELBOW ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-3ALD LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-3BLD LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-3LU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-4 ELBOW TO PIPE ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-4ALU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-4BLU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-4LD LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-5 VALVE TO ELBOW ISI-I-10-1 RHR 18-DCA-10 IGSCO A 10R-IA-5ALD LONG SEAM ISI-1-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-5BLD LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A PAGE: 1

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ATTACHMENT B IGSCC-SUSCEPTIBLE WELDS AT PNPS PER NRC GENERIC LETTER 88-01 0 0 . 00 . . . . . COMPONENT ID NO.. COMPONENT............ ISOMETRIC NO. SYSTEM ID LINE NUMBER.. IGSCC...

DESCRIPTION CATEGORY 10R-IA-6 PIPE TO VALVE ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-6LU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-7 VALVE TO PIPE ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-7LD LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-8 PIPE TO VALVE ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-8LU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-9 ELBOW TO PIPE ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-9ALU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-9BLU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IA-9LD LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-1 PIPE TO TEE ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-10 PIPE TO ELBOW ISI-I-10-1 RHR 18-DCA-10 IGSCC A 1CR-IB-10ALD LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-10BLD LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-10LU LONG SEAM ISI-I-10-1 EHR 18-DCA-10 IGSCC A 10R-IB-11 ELBOW TO PIPE ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-11ALU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-11BLU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-11LD LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-1B-12ALD LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-12BLD LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-14 PIPE TO FLUED HEAD ISI-I-10-1 RHR 18-DCA/DC-10 IGSCC A 10R~IB-14 LU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-15 ELBOW TO PIPE ISI-I-10-1 RHR 18-DCA-1C IGSCC A 10R-IB-16R VALVE TO ELBOW ISI-I-10-1 RHR 18-DCA-1 IGSCC A 10R-IB-1LU LONG SEAM ISI-I-10-1 RER 18-DCA-10 IGSCC A 10R-IB-2 ELBOW TO PIPE ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-2ALU LONG SEAM I3I-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-2BLU LONG SEAM 1SI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-2LD LONG SEAM ISI-Ts-10-1 RHR 18-DCA-10 IGSCC A PAGE: 2

ATTACHMENT B IGSCC-SUSCEPTIBLE WELDS AT PNPS PER NRC GENERIC LETTER 88-O'

. . . . . . . . . . COMPONENT ID NO.. COMPONENT............ ISOMETRIC NO. SYSTEM ID LINE NUMBER.. IGSCC...

DESCRIPTION CATEGORY 10R-IB-3 PIPE TO ELBOW ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-3ALD LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-3BLD LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-3LU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IE-4 ELBOW TO PIPE ISI-I-10-1 RHR 18-DCA-10 IGSCC A l 10R-IB-4ALU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-4BLU LONG SEAM ISI-I-30-1 RHR 18-DCA-10 IGSCC A 10R-IE-4LD LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-5 VALVE TO ELBOW ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-5ALD LONG SEAM IS1-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-5BLD LONG SEAM ISI-I-10-1 PHR 18-DCA-10 IGSCC A 10R-IB-6 PIPE TO VALVE ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-1B-6LU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-7 VALVE TO PIPE ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-7LD LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-8 PIPE TO VALVE ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-8LU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-9 ELBOW TO PIPE ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-9ALU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-9BLU LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-IB-9LD LONG SEAM ISI-I-10-1 RHR 18-DCA-10 IGSCC A 10R-O-1 TEE TO 45 ELBOW ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-10 PIPE TO PIPE ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-10LD LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-10LU LONG SEAM 1SI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-11 PIPE TO ELBOW ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-11ALD LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-11BLD LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-11LU LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-12 ELBOW TO VALVE ISI-I-10-1A RHR 20-DCA-10 IGSCC A 1

PAGE: 3

ATTACHMENT B IGSCC-SUSCEPTIBLE WELDS AT PNPS PER NRC GENERIC LETTER 88-01

, ....o..... COMPONENT ID NO.. COMPONENT............ ISOMETRIC NO. SYSTEM ID LINE NUMBER.. IGSCC...

DESCRIPTION CATEGORY 10R-O-12ALU LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-12BLU LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-13 VALVE TO PIPE ISI-I-10-1A RHR 20-DCA-10 IGSCC A '

10R-O-13LD LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-14 PIPE TO PIPE ISI-I-10-1A RHR 20-DCA/EL-10 IGSCC A 10R-O-14LU LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-1ALD LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-1BLD LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-2 45 ELBOW TO PIPE ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-2ALU LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-2BLU LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-2LD LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-3 PIPE TO ELBOW ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-3ALD LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-3BLD LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-3LU LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-4 ELBOW TO PIPE ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-4ALU LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-4BLU LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-4LD LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-5 PIPE TO 45 ELBOW ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-5ALD LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-5BLD LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-5LU LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-6 45 ELBOW TO PIPE ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-6ALU LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-6BLU LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-6LD LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-7 PIPE TO VALVE ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-7LU LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A PAGE: 4

ATTACHMENT B IGSCC-SUSCEPTIBLE WELDS AT PNPS PER NRC GENERIC LETTER.88-01 0 00 . 0 0 . . . . COMPONENT ID NO.. COMPONENT............ ISOMETRIC NO. SYSTEM ID LINE NUMBER.. IGSCC...

DESCRIPTION CATEGORY 10R-O-8 VALVE TO ELBOW ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-8ALD LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-8BLD LONG SEAM ISI-I-10-1A RhR 20-DCA-10 IGSCC A 10R-O-9 ELBOW TO PIPE ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-9ALU LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 10R-O-9BLU LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSJC A 10R-O-9LD LONG SEAM ISI-I-10-1A RHR 20-DCA-10 IGSCC A 4

12R-O-1 PIPE TO SWEEP-O-LET ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-10 PIPE TO VALVE ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-10LU LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-11 VALVE TO FIPE ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-11LD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-12 PIPE TO ELBOW ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-12ALD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-12BLD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-12LU LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-13 ELBOW TO PIPE ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-13ALU LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-13BLU LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-13LD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-14 PIPE TO 45 ELBOW ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-14ALD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-14BLD LONG SEAM ISI-I+-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-14LU LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-15 45 ELBOW TO PIPE ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-15ALU LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-15BLU LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-15LD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-16 PIPE TO ELBOW ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-16ALD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A PAGE: 5

ATTACHMENT B IGSCC-SUSCEPTIBLE WELDS AT PNPS PER NRC GENERIC LETTER 88-01

.......... COMPONENT ID NO.. COMPONENT............ ISOMETRIC NO. SYSTEM ID LINE NUMBER.. IGSCC...

DESCRIPTION CATEGORY 12R-O-16BLD IDNG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-16LU IANG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-17 ELBOW TO PIPE ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-17ALU LONG SEAM ISI-I-32-1 RWCU 6-DCA-12 IGSCC A 12R-O-17BLU IDNG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-17LD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-18 PIPE TO ELBOW ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-18ALD IDNG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-18BLD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-18LU IDNG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-19 ELBOW TO PIPE ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-19A PIPE TO ELBOW ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-19A-ALD IDNG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-19A-DLD IDNG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-19A-LU LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-19ALU IDNG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-19BLU LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-19LD LONG SEAM 3SI-I-12-1 RWCU 6-DCA-12 IGSCC A 122-O-1A SWEEPOLET TO ELBOW ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-1A-ALD IDNG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-1A-BLD IDNG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-2 45 ELBOW TO PIPE ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-20 ELBOW TO PIPE ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-20ALU IDNG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-20BLU IDNG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-20LD IDNG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-21 PIPE TO ELBOW ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-21ALD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-21BLD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-21LU IONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A PAGE: 6

ATTACHMENT B IGSCC-SUSCEPTIBLE WELDS AT PNPS PER NRC GENERIC LETTER 88-01

.......... COMPONENT ID NO.. COMPONENT............ ISOMETRIC NO. SYSTEM ID LINE NUMBER.. IGSCC...

DESCRIPTION CATEGORY 12R-O-22 ELBOW TO PIPE ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-22A PIPE TO ELBOW ISI-1-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-22A-ALD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-22A-BLD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-22A-LU LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-22ALU LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-22BLU LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-22LD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-23ALU LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-23BLU LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-2ALU LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-2BLU LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-2LD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-3 PIPE TO 45 ELBOW ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-3ALD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12h-O-3BLD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 ICSCC A 12R-O-3LU LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 ICSCC A 12R-O-4 45 ELBOW TO PIPE ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-4ALU LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-4BLU LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-4LD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-5 PIPE TO VALVE ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-SLU LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-6 VALVE TO ELBOW ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-6ALD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-6BLD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-7 ELBOW TO PIPE ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-7ALU LCNG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-7BLU LONG SEAM ISI-I-12-1 RWCU 6-CCA-12 IGSCC A 12R-O-7LD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A

PAGE
7 l

ATTACHMENT B .

IGSCC-SUSCEPTIBLE WELDS AT PNPS PER NRC GENERIC . TTER 88-01

.o..o..... COMPONENT ID NO.. COMPONENT............ ISOMETRIC NO. SYSTEM ID LINE NUMBER.. IGSCC...

DESCRIPTION CATEGORY ,

12R-O-8 PIPE TO LLBOW ISI-I-12-1 RWCU 6-DCA-12 IGSCC A

, 12R-O-8ALD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-8BLD LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-8LU LONC SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-9 ELBOW TO PIPE ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-9ALU LONG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O-9 BLU LOMG SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 12R-O--9LD IDNG' SEAM ISI-I-12-1 RWCU 6-DCA-12 IGSCC A 14-A-1 SAFE END TO NOZZLE ISI-I-14-1 RPV DCA IGSCC A 14-A-10A VALVE TO PIPE ISI-I-14-1 CS 10-DBA/DCA-14 IGSCC A 14-A-2 REDUCER TO SAFE END ISI-I-14-1 CS 10-DCA-14 IGSCC A 14-A-3 REDUCER TO PIPE ISI-I-14-1 CS 10-DBA/DCA-14 IGSCC A 14-B-1 SAFE END TO NOZZLE ISI-I-14-1 RPV DCA IGSCC A 14-b-10A VALVE TO PIPE ISI-I-14-1 CS 10-DBA/DCA-14 IGSCC A 14-B-2 REDUCER TO SAFE END ISI-I-14-1 CS 10-DCA-14 IGSCC A 14-B-3 REDUCER TO PIPE ISI-I-14-1 CS 10-DCA/DBA-14 IGSCC A 14R-A-11 PIPE TO VALVE ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-A-11A PIPE TO PIPE ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-A-11A-LD LONG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-A-11A-LU LONG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-A-11LU LONG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-A-12 ELBOW TO PIPE ISI-I-14-1 CS 10-DCA-14 IGSCs A 14R-A-12ALU LONG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A 14 R-A-12 BLU LONG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-A-12LD LONG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-A-13 VALVE TO ELBOW ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-A-13ALD LONG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-A-13BLD LONG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-A-14 PIPE TO VALVE ISI-I-14-1 CS 10-DCA-14 IGSCC .T 14R-A-14LU IDNG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A PAGE: 8

ATTACHMENT B IGSCC-SUSCEPTIBLE WELDS AT PNPS PER NRC GENERIC LETTER 88-01

.......... COMPONENT ID NO.. COMPONENT............ ISOMETRIC NO. SYSTEM ID LINE NUMBER.. IGSCC...

DESCRIPTION CATEGORY ,

14R-A-15 ELBOW TO PIPE ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-A-15ALU IDNG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-A-15BLU IONG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-A-15LD LONG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-A-16ALD LONG SEAM ISI-I-14-1 Cf 10-DCA-14 IGSCC A

~

14R-A-16BLD LONG SEAM ISI-I-14-1 10-DCA-14 IGSCC A 14R-B-11 PIPE TO VALVE ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-B-11LU IDNG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-B-12 ELBOW TO PIPE ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-B-12ALU IONG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-B-12BLU IDNG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-B-12LD LONG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-B-13 VALVE TO ELBOW ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-B-13ALD LONG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-B-13BLD LONG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-B-14 PIPE TO VALVE ISI-I-14-1 CS 10-DCA-14 IGSCC A ,

14R-B-14LU IDNG SEaN ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-B-15 EL' BOW TO PIPE ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-B-15ALU LONG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-B-15BLU LONG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-B-15LD LONG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-B-16ALD IDNG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-P-16BLD LONG SEAM ISI-I-14-1 CS 10-DCA-14 IGSCC A 14R-B-21 VALVE TO PIPE ISI-I-14-1 CS 10-DCA/DC-14 IGSCC A 2R-BPA-1 BR CONN TO PIPE ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-HA-1 HEADER TO BEND ISI-I-2R-A RECTRC 22-DCA-2 IGSCC A 2R-HA-1LD LONG SEAM ISI-I-2R-A RECIRC 22-DCA-2 IGSCC A 2R-HA-1LU IDNG SEAM ISI-I-2R-A RECIRC 2 2-DCA<-2 IGSCC A 2R-HA-2 CROSS TO HEADER ISI-I-2R-A RECIRC 22-DCA-2 IGSCC A 2R-HA-2LD LONG SEAM ISI-I-2R-A RECIRC 22-DCA-2 IGSCC A PAGE: 9

]

1 1 ATTACHMENT B -

i IGSCC-SUSCEPTIBLE WELDS AT PNPS PER NRC GENERIC LETTER 88-01

.......... COMPONENT ID NO.. COMPONENT............ ISOMETRIC NO. SYSTEM ID LINT NUMBER.. IGSCC...

DESCRIPTION CATEGORY 2R-HA-3 CROSS TO HEADER ISI-I-2R-A RECIRC 22-DCA-2 IGSCC A l 2R-HA-3LD IDNG SEAM ISI-I-2R-A RECIRC 22-DCA-2 IGSCC A

! 2R-HA-4 HEADER TO BEND ISI-I-2R-A RECIRC 22-DCA-2 IGSCC A 2R-HA-4LD IDNG SEAM ISI-I-2R-A RECIRC 22-DCA IGSCC A 2R-HA-4LU LONG SEAM ISI-I-2R-A RECIRC 22-DCA-2 IGSCC A

2R-N1B-10 ELBOW TO PUMP ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A i 2R-N1B-10ALU IDNG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-10BLU IDNG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-11 PUMP TO PIPE ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A i

2R-N1B-11LD LONG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A

, 2R-N1B-12 PIPE TO VALVE ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-1?LU IDNG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-13 VALVE TO ELBOW ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A- ,

2R-N1B-13ALD IDNG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC.A 2R-N1B-13BLD IDNG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-14 ELBOW TO PIPE ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A' 2R-N1B-14ALU IDNG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A l 2R-N1B-14BLU IDNG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A

! 2R-N1B-14LD IDNG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-1. PIPE TO TEE / CROSS ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-15LD IDNG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-15LU LONG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-2 SAFE END TO ELBOW ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A' 2R-N1B-2 ALP IDNG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-2BLD LONG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A.

2R-N1B-3 ELBOW TO PIPE ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N3B-3ALU IDNG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-3BLU LONG SEAM ISI-I-2R-A RECIRC 26-DCA-2 IGSCC A 2R-N1B-3LD IDNG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-4 PIPE TO TEE ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A-  !

e PAGE: 10 4

i h

I

ATTACHMENT B IGSCC-SUSCEPTIBLE WELDS AT PNPS PER NRC GENERIC LETTER 88-01 i

.......... COMPONENT ID NO.. COMPONENT............ ISOMETRIC NO. SYSTEM ID LINE NUMBER.. IGSCC...

DESCRIPTION CATEGORY ,

2R-N1B-4LD LONG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-4LU LONG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-5 TEE TO PIPE ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-5LD LONG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-5LU LONG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A I 2R-N1B-6 PIPE TO PIPE ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-6LD LONG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A j 2R-N1B-6LU LONG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-7 PIPE TO ELBOW ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-7ALD LONG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-7BLD LONG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-7LU LONG SEAM ISI-I-2R-A RECIRC 28-DCA-2 l'GSCC A 2R-N1B-8 ELBOW TO VALVE ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-8ALU LONG !;EAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-8BLU LONG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-9 VALVE TO ELBOW ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A i 2R-N1B-9ALD LONG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 3R-N1B-9BC-1 BR CONN TO ELBOW ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-9BC-2 BR CONN TO ELBOW ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N1B-9BLL LONG SEAM ISI-I-2R-A RECIRC 28-DCA-2 IGSCC A 2R-N2A-2 PIPE TO SAFE END ISI-I-2R-A RECIRC 12-DCA-2 IGSCC A 2R-N2A-2LU LONG SEAM ISI-I-2R-A RECIRC 12-DCA-2 IGSCC A 2R-N2A-3 COMPOUND BEND TO PIPE ISI-I-2R-A RECIRC 12-DCA-2 IGSCC A 2R-N2A-3LD LONG SEAM ISI I-2R-A RECIRC 12-DCA-2 IGSCC A 2R-N2A-3LU LONG SEAM ISI-I-2R-A RECIRC 12-DCA-2 IGSCC A 2R-N2B-2 PIPE TO SAFE END ISI-I-2R-A RECIRC 12-DCA-2 IGSCC A 2R-N2B-200 LONG SEAM ISI-I-2R-A RECIRC 12-DCA-2 IGSCC A 2R-N2B-3 HEADER TO PIPE ISI-I-2R-A RECIRC 12-DCA-2 IGSCC A 2R-N2B-3LD LONG SEAM ISI-I-2R-A RECIRC 12-DCA-2 IGSCC A 2R-N2C-2 PIPE TO OAFE END ISI-I-2R-A RECIRC 12-DCA-2 ICSCC A PAGE: 11 l

l L ___ m 1

ATTACHMENT B ,

IGSCC-SUSCEPTIBLE WELDS AT PNPS PER NRC GENERIC LETTER 88-01

.......... COMPONENT ID NO.. COMPONENT............ ISOMETRIC WO. SYSTEM ID LINE NUMBER.. IGSCC...

DESCRIPTION CATEGORY .

2R-N2C-2LU IDNG SEAM ISI-I-2R-A RECIRC 12-DCA-2 IGSCC A 2R-N2C-3 CROSS TO PIPE ISI-I-2R-A RECIRC 12-DCA-2 IGSCC A 2R-N2C-3LD ID3G SEAM ISI-I-2R-A RECIRC 12-DCA-2 IGSCC A 2R-N2C-3LU LONG SEAM ISI-I-2R-A RECIRC 12-DC).-2 IGSCC A 2R-N2D-2 PIPE TO SAFE END 13I-I-2R-A RECIRC 12-DCA-2 IGSCC A 2R-N2D-2LU IDNG SEAM ISI-I-2R-A RECIRC 12-DCA-2 IGSCC A 2R-N2D-3 HEADER TO PIPE ISI-I-2R-A RECIRC 12-DCA-2 IGSCC A 2R-N2D-3LD LONG SEAM ISI-I-2R-A RECIRC 12-DCA-2 IGSCC A 2R-N2E-2 PIPE TO SAFE END ISI-I-2R-A RECIRC 12-DCA-2 IGSCC A 2R-N2E-2LU LONG SEAM ISI-I-2R-A RECIRC 12-DCA-2 IGSCC A 2R-N2E-3 COMPOUND BEND TO PIPE ISI-I-2R-A RECIRC 12-DCA-2 IGSCC A 2R-N2E-3LD LONG SEAM ISI-I-2R-A RECIRC 12-DCA-2 IGSCC A 2R-N2E-3LU IDNG SEAM ISI-I--2R-A RECIRC 12-DCA-2 IGSCC A 2R-BP-1A BR CONN TO PIPE ISI-7-2R-B RECIRC 28-DCA-2 IGSCC A 2R-H3-1 HEADER TO BEND ISI-I ~;R-B RECIRC 22-DCA-2 IGSCC A 2R-HB-1LD LONG SEAM ISI-I-2R-B RECIRC 22-DCA-2 IGSCC A 2R-HB-1LU IDNG SEAM ISI-I-2R-B RECIRC 22-DCA-2 IGSCC A 2R-HB-2 CROSS TO HEADER ISI-I-2R-B RECIRC 22-DCA-2 IGSCC A 2R-HB-2LD LONG SEAM ISI-I-2R-B RECIRC 22-DCA-2 IGSCC A 2R-HB-3 CROSS TO HEADER ISI-I-2R-B RECIRC 22-DCA-2 IGSCC A 2R-HB-3LD LONG SEAM ISI-I-2R-B RECIRC 22-DCA-2 IGSCC A 2R-IIB-4 HEADER TO BEND ISI-I-2R-B RECIRC 22-DCA-2 IGSCC A 2R-HB-4LD IDNG SEAM ISI-I-2R-B RECIRC 22-DCA-2 IGSCC A 2R-HB-4LU IONG SEAM ISI-I-2R-B RECIRC 22-DCA-2 IGSCC A 2R-NIA-1 NOZZLE TO SAFE EhD ISI-I-2R-B RPV 28-DCA-2 IGSCC A 2R-N1A-lO PIPE TO VALVE ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-10LU LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A

~2R-NiA~11 VALVE TO ELBOW ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-11ALD LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-'11BLD LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A PAGE: 12

ATTACHMENT B IGSCC-SUSCEPTIBLE WELDS AT PNPS PER NRC GENERIC LETTER 88-01

.......... COMPONENT ID NO.. COMPONENT............ ISOMETRIC NO. SYSTEM ID LINE NUMBER.. IGSCC...

DESCRIPTION CATEGORY ,

2R-N1A-12 ELBOW TO PIPE ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-12ALU LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-NIA-12BLU MNG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-12LD LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-13 PIPE TO TEE ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-13LD MNG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-13LU LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-14 TEE TO PIPE ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-14LD LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-14LU MNG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-15 PIPE TO CROSS ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-15LD LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-15LU MNG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-2 PIPE TO SAFE END ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-2ALD LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-2BLD LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-NIA-3 ELBOW TO PIPE ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-3ALU LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-3BLU MNG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-3LD LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-4 PIPE TO PIPE ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-4LD LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-4LU LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-NIA-5 PIPE TO ELBOW ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-5ALD LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-NIA-5BLD LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-5LU LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-NIA-6 ELLOW TO VALVE ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-NIA-6ALU LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-NIA-6BLU LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A PAGE: 13

ATTACHMENT B IGSCC-SUSCEPTIBLE WELDS AT PNPS PER NRC GENERIC LETTER 88-01

.......... COMPONENT ID NO.. COMPONENT............ ISOMETRIC NO. SYSTEM ID LINE NUMBER.. IGSCC...

DESCRIPTION CATEGORY ' ,

l 2R-N1A-7 VALVE TO ELBOW ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-7ALD LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-NIA-7BC-1 BR CONN TO ELBOW ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-7BC-2 BR CONN TO ELBOW ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-7BLD LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-8 ELBOW TO PUMP ISI-I-2R-B RECIRC 38-DCA-2 IGSCC A 2R-N1A-8ALU LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-8BLU LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N1A-9 PUMP TO PIPE ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-NLA-9LD LONG SEAM ISI-I-2R-B RECIRC 28-DCA-2 IGSCC A 2R-N2F-2 PIPE TO SAFE END ISI-I-2R-B RECIRC 12-DCA-2 IGSCC A 2R-N2F-2LU LONG SEAM ISI-I-2R-B RECIRC 12-DCA-2 IGSCC A 2R-N2F-3 COMPOUND BEND TO PIPE ISI-I-2R-B RECIRC 12-DCA-2 IGSCC A 2R-N2F-3LD LONG SEAM ISI-I-2R-B RECIRC 12-DCA-2 IGSCC A 2R-N2F-3LU LONG SLLM ISI-I-?R-B RECIRC 12-DCA-2 IGSCC A 2R-N2G-2 PIPE TO SAFE END ISI-I-2R-B RECIRC 12-DCA-2 IGSCC A 2R-N2G-2LU LONG SEAM ISI-I-2R-B RECIRC 12-DCA-2 IGSCC A 2R-N2G-3 HEADER TO PIPE ISI-I-2R-B RECIRC 12-DCA-2 IGSCC A 2R-N2G-3LD LONG SEAM ISI-I-2R-B RECIRC 12-DCA-2 IGSCC A 2R-N2H-2 PIPE TO SAFE END ISI-I-2R-B RECIRC 12-DCA-2 IGSCC A 2R-N2H-2LU LONG SEAM ISI-I-2R-B RECIRC 12-DCA-2 IGSCC A 2R-N2H-3 CROSS TO PIPE ISI-I-2R-B RECIRC 12-DCA-2 IGSCC A 2R-N2H-3LD LONG SEAM ISI-I-2R-B RECIRC 12-DCA-2 IGSCC A 2R-N2H-3LU LONG SEAM ISI-I-2R-B RECIRC 12-DCA-2 IGSCC A 2R-H2J-2 PIPE TO SAFE END ISI-I-2R-B RECIRC 12-DCA-2 IGSCC A 2R-N2J-2LU LONG SEAM ISI-I-2R-B RECIRC 12-DCA-2 IGSCC A 2R-N2J-3 HEADER TO PIPE ISI-I-2R-B RECIRC 12-DCA-2 IGSCC A 2R-N2J-3LD . LONG SEAM ISI-I-2R-B RECIRC 12-DCA-2 IGSCC A 2R-N2K-2 PIPE TO SAFE END ISI-I-2R-B RECIRC 12-DCA-2 IGSCC A 2R-N2K-20(T LONG SEAM ISI-I-2R-B RECIRC 12-DCA-2 IGSCC A PAGE: 14

ATTACHMENT B IGSCC-SUSCEPTIBLE WELDS AT PNPS PER NRC GENERIC LETTER 88-01

.......... COMPONENT ID NO.. COMPONENT............ ISOMETRIC NO. SYSTEM ID LINE NUMBER.. IGSCC...

DESCRIPTION CATEGORY , .,

2R-N2K-3 COMPOUND BEND TO PIPE ISI-I-2R-B RECIRC 12-DCA-2 IGSCC A 2R-N2K-3LD LONG SEAM ISI-I-2R-B RECIRC 12-DCA-2 IGSCC A 2R-N2K-3LU LONG SEAM ISI-I-2R-B RECIRC 12-DCA-2 IGSCC A 10-IA-14 PIPE TO FLUED HEAD ISI-I-10-1 RHR 18-DC-10 IGSCC D 10-IA-15 VALVE TO PIPE ISI-I-10-1 RHR 18-DC-10 IGSCC D 10R-IA-12 PENETRATION TO ELBOW ISI-I-10-1 RHR 18-DC/DCA-10 IGSCC D 10R-IB-12 PENETRATION TO ELBOW ISI-I-10-1 RHR 18-DC/ DCA-10 IGSCC D DC-10-F10R PIPE TO VALVE ISI-I-10-4B RHR 18-DC IGSCC D 10-HS-1 REDUCER TO FLANGE ISI-I-10-5A RHR 6-EA-10 IGSCC D 10-HS-10 PIPE TO ELBOW ISI-I-10-5A RHR 4-EA-10 IGSCC D 10-HS-11 PIPE TO PIPE ISI-I-10-5A RHR 4-EA-10 IGSCC D 10-HS-12 FLANGE TO PIPE ISI-I-10-5A RHR 4-EA-10 IGSCC D 10-HS-13 PIPE TO FLANGE ISI-I-10-SA RHR 4-EA-10 ICSCC P 10-HS-14 ELBOW TO PIPE. ISI-I-10-5A RHR 4-EA-10 IGSCC D 10-HS-15 PIPE TO ELBOW ISI-I-10-5A RHR 4-EA-10 IGSCC D 10-US-16 ELBOW TO PIPE ISI-I-10-5A RHR 4-EA-10 IGSCC D 10-HS-17 PIPE TO ELBOW ISI-I-10-5A PHR 4-EA-10 IGSCC D 10-HS-18 ELBOW TO PIPE ISI-I-10-5A RHR 4-EA-10 IGSCC D 10-HS-19 VALVE TO ELBOW ISI-I-10-SA RHR 4-EA-10 IGSCC D 10-HS-2 ELBOW TO REDUCER ISI-I-10-5A RHR 4-EA-10 IGSCC D 10-HS-20 PIPE TO VALVE ISI-I-10-SA RHR 4-EA-10 IGSCC D 10-HS-21 VALVE TO PIPE ISI-I-10-5A RHR 4-EA-10 IGSCC D 10-HS-22 ELBOW TO VALVE ISI-I-10-SA RHR 4-EA-10 IGSCC D 10-HS-23 PIPE TO ELBOW ISI-I-10-5A RHR 4-EA/EL-10 IGSCC D 10-HS-3 PIPE TO ELBOW ISI-I-10-5A RHR 4-EA-10 IGSCC D 10-HS-4 ELBOW TO PIPE ISI-I-10-5A RHR 4-EA-10 IGSCC D 10-HS-5 PIPE TO ELBOW ISI-I-10-5A RHR 4-EA-10 IGSCC D 10-HS-6 PIPE TO PIPE ISI-I-10-5A RHR 4-EA-10 IGSCC D 10-HS-7 ELBOW TO PIPE ISI-I-10-SA RHR 4-EA-10 IGSCC D 10-HS-8 PIPE TO ELBOW ISI-I-10-SA RHR 4-EA-10 IGSCC D PAGE: 15

ATTACHMENT B IGSCC-SUSCEPTIBLE WELDS AT PNPS PER NRC GENERIC LETTER 88-01

.......... COMPONENT ID NO.. COMPONENT............ ISOMETRIC NO. SYSTEM ID LINE NUMBER.. IGSCC...

DESCRIPTION CATEGORY ,

10-HS-9 ELBOW TO PIPE ISI-I-10-5A RHR 4-EA-10 IGSCC D 12-O-24 PIPE TO PENETRATION ISI-I-12-1 RWCU 6-EA-12 IGSCC D 12-O-25 PIPE TO PIPE ISI-I-12-1 RWCU 6-EA-12 IGSCC D 12-O-26 PIPE TO BEND ISI-I-12-1 RWCU 6-EA-12 IGSCC D 12-O-27 BEND TO PIPE ISI-I-12-1 RWCU 6-EA-12 IGSCC D 12-O-28 PIPE TO ELBOW ISI-I-12-1 RWCU G-EA-12 IGSCC D 12-O-29 ELBOW TO PIPE ISI-I-12-1 RWCU 6-EA-12 IGSCC D 12-O-30 PIPE TO ELBOW ISI-I-12-1 RWCU 6-EA-12 IGSCC D 12-O-31 ELBOW TO PIPE ISI-I-12-1 RWCU 6-EA-12 IGSCC D 12-O-32 PIPE TO VALVS ISI-I-12-1 RWCU 6-EA-12 IGSCC D 12R-O-23 ELBOW TO PENETRATION ISI-I-12-1 RWCU 6-DCA/EA-12 IGSCC D 12-I-16 REDUCER TO PIPE ISI-I-12-2 RWCU 6-DA/DL-6 IGSCC D 12-I-17 PIPE TO REDUCER ISI-I-12-2 RWCU 4-DA-12 IGSCC D 12-I-18 ELBOW TO PIPE ISI-I-12-2 RWCU 4-DA-12 IGSCC D 12-I-19 PIPE TO ELBOW ISI-I-12-2 RWCU 4-DA-12 IGSCC D 12-I-21 PIPE TO ELBOW ISI-I-12-2 RWCU 4-DA-12 IGSCC D 12-I-23 PIPE TO ELBOW ISI-I-12-2 RWCU 4-DA-12 IGSCC D 12-I-23A PIPE TO PIPE ISI-I-12-2 RWCU 4-DA-12 IGSCC D 12-I-24 ELBOW TO PIPE ISI-I-12-2 RWCU 4-DA-12 IGSCC D 12-I-25 PIPE TO ELBOW ISI-I-12-2 RWCU 4-DA-12 IGSCC D 12-I-25A PIPE TO PIPE ISI-I-12-2 RWCU 4-DA-12 IGSCC D 12-I-26 ELBOW TO PIPE ISI-I-12-2 RWCU 4-DA-12 IGSCC D 12-I-27 PIPE TO ELBOW ISI-1-12-2 RWCU 4-DA-12 IGSCC D 12-I-28 ELBOW TO PIPE ISI-I-12-2 RWCU 4-DA-12 IGSCC D 12-I-29 PIPE TO ELBOW ISI-I-12-2 RWCU 4-DA-12 IGSCC D 12-I-30 ELBOW TO PIPE ISI-I-12-2 RWCU 4-DA-12 IGSCC D 12-I-31 PIPE TO ELBOW ISI-I-12-2 RWCU 4-DA-12 IGSCC D 12-I-32 ELBOW TO PIPE ISI-I-12-2 RWCU 4-DA-12 IGSCC D 12-I-33 PIPE TO ELBOW ISI-I-12-2 RWCU 4-DA-12 IGSCC D 12-I-34 ELBOW TO PIPE ISI-I-12-2 RWCU 4-DA-12 IGSCC D PAGE: 16

ATTACHMENT B ,

IGSCC-SUSCEPTIBLE WELDS AT PNPS PER NRC GENERIC LETTER 88-01

.......... COMPONENT ID NO.. COMPONENT............ ISOMETRIC NO. SYSTEM ID LINE NUMBER.. IGSCC...

DESCRIPTION CATEGORY ,

12-I-35 PIPE TO ELBOW ISI-I-12-2 RWCU 4-DA-12 IGSCC D 12-I-36 VALVE TO PIPE ISI-I-12-2 RWCU 4-DA-12 IGSCC D 14-A-17 PIPE TO PENETRATION ISI-I-14-1 CS 10-DC-14 IGSCC D 14-A-18 PIPE TO PIPE ISI-I-14-1 CS 10-DC-14 IGSCC D 14-A-19 VALVE TO PIPE ISI-I-14-1 CS 10-DC-14 IGSCC D 14-B-17 PIPE TO PENETRATION ISI-I-14-1 CS 10-DC-14 IGSCC D 14-B-18 ELBOW TO PIPE ISI-I-14-1 CS 10-DC-14 IGSCC D 14-B-19 PIPE TO ELBOW ISI-I-14-1 CS 10-DC-14 IGSCC D 14-B-20 PIPE TO PIPE ISI-I-14-1 CS 10-DC-14 IGSCC D 14R-A-16 PENETRATION TO ELBOW ISI-I-14-1 CS 10-DC/DCA-14 IGSCC D 14R-B-16 PENETRATION TO ELBOW ISI-I-14-1 CS 10-DC/DCA-14 IGSCC D 14R-B-21A PIPE TO PIPE ISI-I-14-1 CS 10-DC/DCA-14 IGSCC D 2R-N1B-1 NOZZLE TO SAFE END ISI-I-2R-A RPV 28-DCA-2 IGSCC D 2R-N2A-1 SAFE END TO NOZZLE ISI-I-2R-A RPV 12-DCA-2 IGSCC D 2R-N2B-1 SAFE END TO NOZZLE ISI-I-2R-A RPV 12-DCA-2 IGSCC D 2R-N2C-1 SAFE END TO NOZZLE ISI-I-2R-A RPV 12-DCA-2 IGSCC D 2R-N2D-1 SAFE END TO NOZZLE ISI-I-2R-A RPV 12-DCA-2 IGSCC D 2R-N2E-1 SAFE END TO NOZZLE ISI-I-2R-A RPV 12-DCA-2 IGSCC D 2R-N2F-1 SAFE END TO NOZZLE ISI-I-2R-B RPV 12-DCA-2 IGSCC D 2R-N2G-1 SAFE END TO NOZZLE ISI-I-2R-B RPV 12-DCA-2 IGSCC D 2R-N2H-1 SAFE END TO NOZZLE ISI-I-2R-B RPV 12-DCA-2 IGSCC D 2R-N2J-1 SAFE END TO NOZZLE ISI-I-2R-B RPV 12-DCA-2 IGSCC D 2R-N2K-1 SAFE END TO NOZZLE ISI-I-2R-B RPV 12-DCA-2 IGSCC D RPV-N9B-1 NOZZLE TO SAFE END ISI-I-54-4 RPV N/A IGSCC D RPV-N9A-1 NOZZLE TO SAFE END ISI-I-54-4 RPV N/A IGSCC E 10-IA-13A PENETRATION TO FLUED ISI-I-10-1 RHR 18-DC-10 IGSCC G HEAD 10-IB-13A PENETRATION TO FLUED ISI-I-10-1 RHR 18-DC-10 IGSCC G HEAD DB/DC-10-3002-3-3 PIPE TO PIPE ISI-I-10-4A RHR 18-DB/DC-10 IGSCC G PAGE: 17

ATTACHMENT B ,

IGSCC-SUSCEPTIBLE WELDS AT PNPS PER NRC GENERIC LETTER 88-01

......,... COMPONENT ID NO.. COMPONENT............ ISOMETRIC NO. SYSTEM ID LINE NUMBER.. IGSCC...

DESCRIPTION CATEGORY , r.

DC-10-F9 PIPE TO VALVE ISI-I-10-4A RHR 18-DC-10 IGSCC G DB/DC-10-3 001-2-1 ELBOW TO PIPE ISI-I-10-4B RHR 18-DB/DC-10 IGSCC G 12-I-20 ELBOW TO PIPE ISI-I-12-2 RWCU 4-DA-12 IGSCC G 12-I-22 ELBOW TO PIPE ISI-I-12-2 RWCU 4-DA-12 IGSCC G DB/DC-14-3002-5-1 ELBOW TO PIPE ISI-I-14-2A CS 10-DB/DC-14 IGSCC G DC-14-F31 PIPE TO VALVE ISI-I-14-2A CS 10-DC-14 IGSCC G DB/DC-14-3001-4-1 PIPE TO PIPE ISI-I-14-2B CS 10-DC/DB-14 IGSCC G DC-14-F1 PIPE TO VALVE ISI-I-14-2B/1 CS 10-DC-14 IGSCC G 3-I-1 NOZZLE TO CAP ISI-I-3-1 RPV 6-EB-3 IGSCC G PAGE: 18

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