attachment 1 ons license renewal scope and mrp-189, … · 2013. 5. 7. · ons license renewal...

ATTACHMENT 1

ONS LICENSE RENEWAL SCOPE AND MRP-189, REV. 1 COMPARISON(ANP-3186NP, R1)

[NON-PROPRIETARY]

C oc n9()(;L~ nent

AAREVA

ONS License Renewal Scope andMRP-189, Rev. 1 Comparison

ANP-3186NPRevision 1

March 2013

AREVA NP Inc.

(c) 2013 AREVA NP Inc.

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Copyright © 2013

AREVA NP Inc.All Rights Reserved

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AREVA NP Inc. ANP-3186NPRevision 1

ONS License Renewal Scope and MRP-1 89, Rev. 1 Comparison Page i

Contents

Pagqe

1.0 IN T R O D U C T IO N ............................................................................................... 1-1

2.0 METHODOLOGY .............................................................................................. 2-1

3 .0 C O M P A R IS O N .................................................................................................. 3-1

3 .1 S co pe D efinitio n ...................................................................................... 3-13.1.1 Identification of ONS LR Scope for RV Internals .......................... 3-13.1.2 Component Items Contained in MRP -189, Rev. 1 ...................... 3-2

3.2 Component Item Comparison ............................................................... 3-17

3.3 Program Modifications .......................................................................... 3-193.3.1 Misc. Locking Device Parts (Original and Modified) ................... 3-193 .3 .2 [ ] ........................................................ 3 -4 7

4 .0 C O N C LU S IO N S ................................................................................................ 4-1

5 .0 R E F E R E N C E S .................................................................................................. 5-1

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Page iiONS License Renewal Scope and MRP-1 89, Rev. 1 Comparison

List of Tables

Table 3-1: Comparison of ONS LR Scope to MRP-189, Rev. 1 Component Items ..... 3-3

Table 3-2: Comparison of ONS LR Scope to MRP-1 89, Rev. 1 Welds ..................... 3-12

Table 3-3: Vent Valve Locking Device Materials of Construction of Interest ............. 3-21

Table 3-4: Vent Valve Locking Device Material Identification .................................... 3-27

Table 3-5: Vent Valve Locking Device Screening Parameters .................................. 3-29

Table 3-6: Vent Valve Locking Device Initial Screening Results .............................. 3-34

Table 3-7: Vent Valve Locking Device FMECA Results ............................................ 3-39

Table 3-8: Preliminary Categorization of Vent Valve Component Items .................... 3-42

Table 3-9: [] ........................... 3-51

Table 3-10: [ ]............................. 3-55

T able 3-11: [ ]........................................... 3-63

T able 3-12 : [ ]................................................ 3-70

Table 3-13: [ ...... 3-72

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ONS License Renewal Scope and MRP-189, Rev. 1 Comparison


Page iii

Figure 3-1:

Figure 3-2:

Figure 3-3:

Figure 3-4:

Figure 3-5

Figure 3-6

Figure 3-7:

Figure 3-8:

List of Figures

Original Vent Valve Locking Device Schematic ...................................... 3-23

Original Vent Valve Locking Device Schematic - Cross-Section View ... 3-24

Modified Vent Valve Locking Device Schematic ..................................... 3-25

[ ]3-26

MRP-189, Rev. 1 Screening Criteria ........................................................ 3-33

FMECA Risk Band (Safety or Economic) ................................................. 3-38

[............................................................... . . 3 -4 9

[] ............................................... 3-50

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ONS License Renewal Scope and MRP-189, Rev. 1 Comparison Page 1-1

1.0 INTRODUCTION

In December 2008, Electric Power Research Institute (EPRI) issued Rev. 0 of the

Materials Reliability Program (MRP) MRP-227 [i] Inspection and Evaluation (I&E)

Guidelines for managing long-term aging of pressurized water reactor (PWR) reactor

vessel (RV) internals in the U.S. MRP-227-Rev. 0 was submitted to the Nuclear

Regulatory Commission (NRC) for review and approval in January 2009. [ii] In June

2011, the safety evaluation report (SER) for MRP-227-Rev. 0 was issued by the NRC

[iii] and was revised to Rev. 1 in December 2011 [iv]; the revised Rev. 1 SER is

included in the NRC-approved MRP-227-A report. [v] MRP-227-A provides generic

augmented inspection requirements for the currently operating fleet of U.S. PWRs.

MRP-227-A Section 7.3 categorizes the implementation of the augmented inspections

as "Needed" in accordance with Nuclear Energy Institute (NEI) 03-08 Guidelines. [vi]

Section 3.0 of Rev. 1 of the SER documents the staff's evaluation and findings

pertaining to the adequacy of the MRP's Aging Management Program (AMP)

recommendations. In particular, Section 3.0 documents staff concerns with MRP-227

and the basis for limitations and conditions being placed on the use of MRP-227 as well

as licensee/applicant action items that shall be addressed by applicants/licensees who

choose to implement the NRC-approved version of MRP-227.

Duke Energy plans to implement MRP-227-A for the Oconee Nuclear Station (ONS)

Units 1, 2, and 3 and in doing so, must perform the appropriate evaluation, analyses,

and other required actions to fulfill the applicant/licensee action items specified in the

SER. Applicant/licensee action item 2, from Section 4.2.2 of Rev. 1 of the SER, is as

follows:

"As discussed in Section 3.2.5.2 of this SE, consistent with the requirements

addressed in 10 CFR 54.4, each applicantilicensee is responsible for identifying

which RVI components are within the scope of LR for its facility.

Applicants/licensees shall review the information in Tables 4-1 and 4-2 in MRP-

189, Revision 1, and Tables 4-4 and 4-5 in MRP-191 and identify whether these

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tables contain all of the RVI components that are within the scope of LR for their

facilities in accordance with 10 CFR 54.4. If the tables do not identify all the RVI

components that are within the scope of LR for its facility, the applicant or

licensee shall identify the missing component(s) and propose any necessary

modifications to the program defined in MRP-227, as modified by this SE, when

submitting its plant-specific AMP. The AMP shall provide assurance that the

effects of aging on the missing component(s) will be managed for the period of

extended operation. This issue is Applicant/Licensee Action Item 2."

The purpose of this document is to perform a comparison between the ONS RV

Internals license renewal (LR) scope and Tables 4-1 and 4-2 in MRP-189, Rev. 1 [vii]

(for B&W-designed RV Internals) to satisfy Applicant/Licensee Action Item 2 from

Reference iv. This comparison will identify whether the MRP-1 89, Rev. 1 tables contain

all of the RV Internals components that are within the scope of LR for the ONS units.

Information considered by AREVA to be proprietary is bracketed using the following

brackets: [ ]

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2.0 METHODOLOGY

The methodology of the comparison described in Section 1.0 was to take the steps as

follows:

1. Obtain definition of scope for license renewal (located within 10 CFR 54.4 [viii])(Section 3.1 of this report)

2. Identify the scope of the license renewal for ONS RV Internals (contained in aDuke calculation) (Section 3.1.1 of this report)

3. List component items and welds contained in the scope (Section 3.1.1 of thisreport)

4. List component items and welds contained in MRP-1 89, Rev. 1 Tables 4-1 and 4-2 (Section 3.1.2 of this report)

5. Compare component items and identify whether the MRP-1 89, Rev. 1 tablescontain all of the RV Internals component items and welds that are within thescope of LR for the ONS units (Section 3.1.2, Section 3.2, Table 3-1, andTable 3-2 of this report)

6. Once the component items that are in the LR scope (but are not in MRP-1 89,Rev. 1) are identified, propose any necessary modifications to the programdefined in MRP-227, as modified by the SER (Section 3.3 of this report). Thiswill be done by utilizing the same screening methodology as used to developMRP-227-A. As described in MRP-227-A, the following sequence steps wereused:

a. Identify PWR internals components, materials, and environments

b. Identify degradation screening criteria

c. Characterize components and screen for degradation (A, non-A)

d. FMECA review

e. Severity categorization (A, B, C)

f. Engineering evaluation and assessment

g. Categorize for inspection (primary, expansion, existing, no additionalmeasures) and aging management strategy

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ONS License Renewal Scope and MRP-1 89, Rev. 1 Comparison Page 3-1

3.0 COMPARISON

The following sections execute the methodology described in Section 2.0 of this report.

3.1 Scope Definition

The following definition of scope, for LR, is found in 10 CFR 54.4.

'(a) Plant systems, structures, and components within the scope of this part are--(1) Safety-related systems, structures, and components which are those relied upon to remain

functional during and following design-basis events (as defined in 10 CFR 50.49 (b) (1)) to ensurethe following functions--

(i) The integrity of the reactor coolant pressure boundary,(ii) The capability to shut down the reactor and maintain it in a sqfe shutdown condition;

or(iii) The capability to prevent or mitigate the consequences of accidents which couldresult in potential offsite exposures comparable to those referred to in § 50.34(a) (1), §50.67(b) (2), or § 100.11 of this chapter, as applicable.

(2) All nonsafety-related systems, structures, and components whose failure could preventsatisfactoty accomplishment of any of the functions identified in paragraphs (a) (1) (i), (i), or (iii)of this section.(3) All systems, structures, and components relied on in safeot analyses or plant evaluations toperform a function that demonstrates compliance with the Commission's regulations for fireprotection (10 CFR 50.48), environmental qualification (10 CFR 50.49), pressurized thermalshock (10 CFR 50.61), anticipated transients without scram (10 CFR 50.62), and station blackout(10 CFR 50.63).

(b) The intended functions that these systems, structures, and components must be shown tofufill in §54.21 are those functions that are the bases for including them within the scope of license renewal asspecified in paragraphs (a)(]) - (3) of this section. "

3.1.1 Identification of ONS LR Scope for RV Internals

The aging management review (AMR) performed for LR is contained in a Duke

calculation. The scope, or component items subject to an aging management review, is

reviewed in Section 4.4.2 of this Duke calculation and reported to be the component

items that support the five RV internals intended functions and associated materials as

reported in BAW-2248A [ix], [

] and component items that support the intended function to provide gamma

and neutron shielding including the thermal shield and the thermal shield upper

restraint. These component items specific to the ONS units are listed in Table 3-1

(component items) and Table 3-2 (welds) of this report. Note that the welds for the

ONS LR scope are not listed in the Duke calculation or BAW-2248A, but are rather in

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the text and translated to a table format, specifically the following two sentences from

Section 2.0 of BAW-2248A as well as details in Subsections 2.1-2.4:

The welds within the scope of the reactor vessel internals report include the major

structural welds that form or join the major sub-assembly cylinders and flanges and

minor structural welds joining parts such as lifting lugs, support pipes and tubes to the

major sub-assemblies. There are no pressure-retaining or pressure boundary welds

within the scope of this report.

3.1.2 Component Items Contained in MRP -189, Rev. 1

The component items contained in MRP-1 89, Rev. 1 Tables 4-1 and 4-2 that match

those listed in the ONS LR scope for RV Internals are listed in Table 3-1 (component

items) and Table 3-2 (welds). Component items contained in MRP-189, Rev. 1 Tables

4-1 and 4-2 that are additional beyond those contained in the ONS LR scope for RV

Internals are not listed in Table 3-1 and Table 3-2 of this report. These component

items are outside the scope of this document as well as the description of the applicable

licensee/applicant action item (specific action item wording is given in Section 1.0).

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AREVA NP Inc.

ONS License Renewal Scone and MRP-189. Rev. 1 Comparison


Paoe 3-3ONS License Renewal Scone and MRP-189 Rev. 1 Cornnarison Pane 3-3

Table 3-1: Comparison of ONS LR Scope to MRP-189, Rev. I Component Items

ONS LR Scope

Item Component Item Reference Identifier MRP-189 Component Item Reference

1 Plenum Cover Weldment BAW-2248A, P.1.1 Plenum Cover Weldment MRP-189, Rev. 1,Ribs Table 2-1 [ix] Ribs Table 4-1 [vii]

2 Plenum Cover Weldment BAW-2248A, P.1.2 Plenum Cover Rib Pads MRP-189, Rev. 1,Rib Pads Table 2-1 [ix] Table 4-1 [vii]

3 Plenum Cover Bottom BAW-2248A, P.1.3 Plenum Cover Bottom MRP-189, Rev. 1,Flange Table 2-1 [ix] Flange Table 4-1 [vii]

4 Plenum Cover Support BAW-2248A, P.1.4 Plenum Cover Support MRP-189, Rev. 1,Flange Table 2-1 [ix] Flange Table 4-1 [vii]

5 Plenum Cover Support Ring BAW-2248A, P.1.5 Plenum Cover Support Ring MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

6 Plenum Cover Plate BAW-2248A, P.1.6 Plenum Cover Plate MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

7 Lifting Lugs (ONS-2, 3) BAW-2248A, P.1.7 Plenum Cover Lifting Lugs MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

8 Base Blocks (ONS-2, 3) BAW-2248A, P.1.8 Base Blocks for Lifting Lugs MRP-189, Rev. 1,Table 2-1 [ix] (ONS-2, 3) Table 4-1 [vii]

9 Lifting Lug-to-Base Block BAW-2248A, P.1.9 Lifting Lug-to-Base Block MRP-189, Rev. 1,Bolts (ONS-2, 3) Table 2-1 [ix] Bolts (ONS-2, 3) Table 4-1 [vii]

10 Locking Cups (ONS-2, 3) BAW-2248A, P.1.10 Locking Cups (ONS-2, 3) MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

11 Integral Lifting Lug w/Base BAW-2248A, P.1.11 Integral Lifting Lugs with MRP-189, Rev. 1,Block (ONS-1) Table 2-1 [ix] Base Block (ONS-1) Table 4-1 [vii]

12 Plenum Cylinder BAW-2248A, P.2.1 Plenum Cylinder MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

13 Plenum Cylinder Top BAW-2248A, P.2.2 Plenum Cylinder Top MRP-189, Rev. 1,Flange Table 2-1 [ix] Flange Table 4-1 [vii]

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P~ncA '-4ON~ I ir~n~ RPnAw~I ~c.on~ ~nd MRP-1R~ R~v I mn~ari~r~n

ONS LR ScopeItem Component Item Reference Identifier MRP-189 Component Item Reference

14 Plenum Cylinder Bottom BAW-2248A, P.2.3 Plenum Cylinder Bottom MRP-189, Rev. 1,Flange Table 2-1 [ix] Flange Table 4-1 [vii]

15 Plenum Cylinder BAW-2248A, P.2.4 Plenum Cylinder MRP-189, Rev. 1,Reinforcing Plates Table 2-1 [ix] Reinforcing Plates Table 4-1 [vii]

16 Plenum Cylinder Round BAW-2248A, P.2.5 Plenum Cylinder Round MRP-189, Rev. 1,Bars Table 2-1 [ix] Bars Table 4-1 [vii]

17 Plenum Cylinder Top BAW-2248A, P.2.6 Plenum Cylinder Top MRP-189, Rev. 1,Flange-to-Cover Bolts Table 2-1 [ix] Flange-to-Cover Bolts Table 4-1 [vii]

18 Plenum Cylinder Locking BAW-2248A, P.2.7 Plenum Cylinder Locking MRP-189, Rev. 1,Cups Table 2-1 [ix] Cups Table 4-1 [vii]

19 Plenum Cylinder Bottom BAW-2248A, P.2.8 Plenum Cylinder Bottom MRP-189, Rev. 1,Flange-to-Upper Grid Table 2-1 [ix] Flange-to-Upper Grid Bolts Table 4-1 [vii]

Screws

20 Plenum Cylinder Locking BAW-2248A, P.2.9 Plenum Cylinder Locking MRP-189, Rev. 1,Cups Table 2-1 [ix] Cups Table 4-1 [vii]

21 Upper Grid Rib Section BAW-2248A, P.3.1 Upper Grid Rib Section MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

22 Upper Grid Ring Forging BAW-2248A, P.3.2 Upper Grid Ring Forging MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

23 Rib-to-Ring Screws BAW-2248A, P.3.3 Rib-to-Ring Cap Screws MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

24 Lockpins BAW-2248A, P.3.4 Locking Pins MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

25 Fuel Assembly Support BAW-2248A, P.3.5 Fuel Assembly Support MRP-189, Rev. 1,Pads Table 2-1 [ix] Pads Table 4-1 [vii]

26 Dowels BAW-2248A, P.3.6 Dowels MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

27 Cap Screw BAW-2248A, P.3.7 Cap Screws MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

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AREVA NP Inc.

(AN-q ircense Reea S(~Afl anrd MRPP-1 A Rev 1 Qrm nriernn


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ONS LR ScopeItem Component Item, Reference Identifier MRP-189 Component Item Reference

28 Control Rod Guide Tube BAW-2248A, P.4.1 CRGT Pipe MRP-189, Rev. 1,(CRGT) Pipe Table 2-1 [ix] Table 4-1 [vii]

29 CRGT Flange BAW-2248A, P.4.2 CRGT Flange MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

30 Flange-to-Upper Grid BAW-2248A, P.4.3 Flange-to-Upper Grid Cap MRP-189, Rev. 1,Screws Table 2-1 [ix] Screws Table 4-1 [vii]

31 Dowels BAW-2248A, P.4.4 Flange Dowels MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

32 CRGT Spacer Castings BAW-2248A, P.4.5 Spacer Castings MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

33 Spacer Castings Screws BAW-2248A, P.4.6 Spacer Casting Cap MRP-189, Rev. 1,Table 2-1 [ix] Screws Table 4-1 [vii]

34 Spacer Castings Washer BAW-2248A, P.4.7 Spacer Casting Washers MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

35 CRGT Rod Guide Tubes BAW-2248A, P.4.8 Rod Guide Tubes MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

36 CRGT Rod Guide Sectors BAW-2248A, P.4.9 Rod Guide Sectors MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

37 Core Support Shield (CSS) BAW-2248A, S.1 CSS Assembly Cylinder MRP-189, Rev. 1,Assembly Cylinder Table 2-1 [ix] Table 4-1 [vii]

38 Top Flange BAW-2248A, S.2 Top Flange MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

39 Bottom Flange BAW-2248A, S.3 Bottom Flange MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

40 CSS-to-Core Barrel Bolts BAW-2248A, S.4a Original CSS-to-Core Barrel MRP-189, Rev. 1,Table 2-1 [ix] Bolts Table 4-1 [vii]

41 Locking clips (original BAW-2248A, S.5a Locking Clips MRP-189, Rev. 1,bolts) Table 2-1 [ix] Table 4-1 [vii]

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42 Outlet Nozzles BAW-2248A, S.6a, b Outlet Nozzles MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

43 Vent Valve Nozzles BAW-2248A, S.7 Vent Valve Nozzles MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

44 Vent Valve Guide Blocks BAW-2248A, S.8 Vent Valve Nozzle Guide MRP-189, Rev. 1,Table 2-1 [ix] Blocks Table 4-1 [vii]

45 Vent Valve Body BAW-2248A, S.9 Vent Valve Body MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

46 Retaining Rings BAW-2248A, S.10 Vent Valve Top and Bottom MRP-189, Rev. 1,Table 2-1 [ix] Retaining Rings Table 4-1 [vii]

47 Jack Screws BAW-2248A, S.11 Vent Valve Jack Screws MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

48 Misc Locking Device BAW-2248A, No correspondingParts (original) Table 2-1 [ix] component item(s)

included in MRP-189, Rev. 1 for ONS

units

49 Misc Locking Device BAW-2248A, No correspondingParts (modified) Table 2-1 [ix] component item(s)

included in MRP-189, Rev. 1 for ONS

units

50 Round Bars BAW-2248A, S.15 Round Bars MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

51 Flow Deflectors BAW-2248A, S.16 Flow Deflectors MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

52 Lifting Lugs BAW-2248A, S.17 Lifting Lugs MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

53 Core Barrel Assembly BAW-2248A, B.1 CBA Cylinder MRP-189, Rev. 1,(CBA) Cylinders Table 2-1 [ix] Table 4-1 [vii]

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ONS License Renewal Scone and MRP-189. Rev. 1 Comparison

ANP-3186NPRevision 1Pane 3-7


54 Top Flange BAW-2248A, B.2 CBA Top Flange MRP-1189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

55 Bottom Flange BAW-2248A, B.3 CBA Bottom Flange MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

56 Lower Internals Assembly- BAW-2248A, B.4a, b Original Lower Grid MRP-189, Rev. 1,to-Core Barrel Bolts Table 2-1 [ix] Assembly-to-Core Barrel Table 4-1 [vii]

Bolts

57 Locking Clips BAW-2248A, B.5a Locking Clips MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

58 Core Barrel-to-Thermal BAW-2248A, B.6a Thermal Shield-to-Core MRP-189, Rev. 1,Shield Bolts Table 2-1 [ix] Barrel Bolts Table 4-1 [vii]

59 Locking Clips BAW-2248A, B.7 Locking Clips MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

60 Baffle Plates BAW-2248A, B.17 Baffle Plates MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

61 Formers BAW-2248A, B.18 Former Plates MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

62 Barrel-to-Former Bolts BAW-2248A, B.19 Core Barrel-to-Former Plate MRP-189, Rev. 1,Table 2-1 [ix] Cap Screws Table 4-1 [vii]

63 Locking Pins BAW-2248A, B.20 Locking Pins MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

64 Dowels BAW-2248A, B.21 Core Barrel-to-Former MRP-189, Rev. 1,Table 2-1 [ix] Plate Dowels Table 4-1 [vii]

65 Baffle-to-Former Bolts BAW-2248A, B.22 Baffle-to-Former Hex Head MRP-189, Rev. 1,Table 2-1 [ix] Bolts (except F4) Table 4-1 [vii]

66 Locking Pins BAW-2248A, B.23 Locking Pins MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

67 Baffle-to-Former Bolts BAW-2248A, B.22 Button Head Socket Cap MRP-189, Rev. 1,Table 2-1 [ix] Screws Table 4-1 [vii]

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Paae 3-8ONS License Renewal Scone and MRP-1 89. Rev. 1 Comparison


68 Locking Pins BAW-2248A, B.23 Locking Wires MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

69 Baffle-to-Former Shoulder BAW-2248A, B.24 Baffle-to-Former Shoulder MRP-189, Rev. 1,Screws Table 2-1 [ix] Screws (F4) Table 4-1 [vii]

70 Locking Dowels BAW-2248A, B.25 Locking Dowels MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

71 Baffle-to-Baffle Bolts BAW-2248A, B.26 Baffle-to-Baffle 12 pt. MRP-189, Rev. 1,Table 2-1 [ix] Bolts/Internal and External Table 4-1 [vii]

Baffle-to-Baffle SocketHead Cap Screws

72 Locking Rings BAW-2248A, B.27 Locking MRP-189, Rev. 1,Table 2-1 [ix] Rings/Wires/Washers Table 4-1 [vii]

73 Lower Grid Rib Section BAW-2248A, L.1.1 Lower Grid Rib Section MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

74 Fuel Assembly Support BAW-2248A, L.1.2 Lower Grid Fuel Assembly MRP-189, Rev. 1,Pads Table 2-1 [ix] Support Pads Table 4-1 [vii]

75 Dowels BAW-2248A, L.1.3 Dowels MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

76 Cap Screws BAW-2248A, L. 1.4 Cap Screws MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

77 Rib-to-Shell Forging BAW-2248A, L.1.5 Rib-to-Shell Forging Cap MRP-189, Rev. 1,Screw Table 2-1 [ix] Screws Table 4-1 [vii]

78 Locking Pin BAW-2248A, L.1.6 Locking Pins MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

79 Lower Grid Flow Distributor BAW-2248A, L.1.7 Lower Grid Flow Distributor MRP-189, Rev. 1,Plate Table 2-1 [ix] Plate Table 4-1 [vii]

80 Orifice Plugs BAW-2248A, L.1.8 Orifice Plugs MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

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81 Lower Grid Forging (ONS- BAW-2248A, L.1.9a Lower Grid Forging (ONS- MRP-189, Rev. 1,2, 3) Table 2-1 [ix] 2, 3) Table 4-1 [vii]

82 Lower Grid Forging Ribs BAW-2248A, L.1.9b Lower Grid Weldment Ribs MRP-189, Rev. 1,(ONS-1) Table 2-1 [ix] (ONS-1) Table 4-1 [vii]

83 Lower Grid Shell Forging BAW-2248A, L.1.10 Lower Grid Shell Forging MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

84 Lower Internals Assembly- BAW-2248A, L.1.11 b Replacement Lower Grid MRP-1189, Rev. 1,to-Thermal Shield Bolts Table 2-1 [ix] Assembly-to-Thermal Table 4-1 [vii]

Shield Studs/Nuts

85 Locking Cups and Tie BAW-2248A, L.1.12 Locking Cups/Tie Plates MRP-189, Rev. 1,Plates (replacement bolts) Table 2-1 [ix] Table 4-1 [vii]

86 Guide Blocks BAW-2248A, L.1.13 Guide Blocks (mating with MRP-189, Rev. 1,Table 2-1 [ix] Guide Lugs on RV) Table 4-1 [vii]

87 Guide Block Bolts BAW-2248A, L. 1.14a Bolts MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

88 Guide Block Washers BAW-2248A, L.1.14b Washers MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

89 Dowel BAW-2248A, L.1.15 Dowels MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

90 Shock Pads BAW-2248A, L.1.16a&b Shock Pads MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

91 Shock Pad Bolts BAW-2248A, L.1.17a Bolts MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

92 Support Post Pipes BAW-2248A, L.1.18 Support Post Pipes MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

93 Bolting Plugs BAW-2248A, L.1.19 Bolting Plugs MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

94 Support Post Cap Screws BAW-2248A, L.1.20 Cap Screws MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

Controlled Document




95 Locking Pin BAW-2248A, L.1.21 Locking Pins MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

96 Flow Distributor Head BAW-2248A, L.2.1 Flow Distributor Head MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

97 Flow Distributor Flange BAW-2248A, L.2.2 Flow Distributor Flange MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

98 Shell Forging-to-Flow BAW-2248A, L.2.3a Flow Distributor-to-Lower MRP-189, Rev. 1,Distributor Bolts Table 2-1 [ix] Grid Shell Forging Bolts Table 4-1 [vii]

99 Locking Clip BAW-2248A, L.2.4 Locking Clips MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

100 Incore Guide Support Plate BAW-2248A, L.2.5 IMI Guide Support Plate MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

101 Clamping Ring BAW-2248A, L.2.6 IMI Guide Support Plate MRP-189, Rev. 1,Table 2-1 [ix] Clamping Ring Table 4-1 [vii]

102 Dowels BAW-2248A, L.2.7 IMI Guide Support Plate MRP-189, Rev. 1,Table 2-1 [ix] Dowels Table 4-1 [vii]

103 Incore Guide Tubes BAW-2248A, L.3.1 IMI Guide Tubes MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

104 Gussets BAW-2248A, L.3.2 IMI Guide Tube Gussets MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

105 Guide Tube Nuts BAW-2248A, L.3.4 IMI Guide Tube Nuts MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

106 Guide Tube Washers BAW-2248A, L.3.3 IMI Guide Tube Washers MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

107 Locking Clips BAW-2248A, L.3.5 Locking Clips MRP-189, Rev. 1,Table 2-1 [ix] Table 4-1 [vii]

108 Spiders BAW-2248A, L.3.6 IMI Guide Tube Spider MRP-189, Rev. 1,Table 2-1 [ix] Castings Table 4-1 [vii]

Contro0ed Document

AREVA NP Inc. ANP-3186NPRevision 1Do = '1 1I ir~n~~ R~n~iA,~I ~ ~nrI MRP~1RQ P~i I CAmn~ri~An


109 Thermal Shield Duke B.10 Thermal Shield MRP-189, Rev. 1,Calculation Cylinder Table 4-1 [vii]

110 Thermal Shield Upper Duke B.11, B.12, B.13, Thermal Shield Upper MRP-189, Rev. 1,Restraint Calculation B.14, B.15, B.16 Restraint "A" and "B" Table 4-1 [vii]

Blocks, Shims, Hardfacing,Upper Plugs, Dowels, Cap

Screws

ControlIed Document


I ir~n~ R~n~i~I 5~rc~n~ ~nr~ MRP-IRq Rc~u I C~Amn~ri~n

Table 3-2: Comparison of ONS LR Scope to MRP-189, Rev. 1 Welds

Item ONS LR Scope Weld Reference Weld ID MRP-189 Weld Reference

1 Top and bottom core barrel BAW-2248A, WC-1 1 Top and bottom core barrel MRP-189, Rev. 1,cylinders to top and bottom Section 2 [ix] cylinders to top and bottom core Table 4-2 [vii]

core barrel flanges barrel flanges circumferential seamcircumferential seam weld weld

2 Top and bottom thermal Duke WC-12 Top and bottom thermal shield MRP-189, Rev. 1,shield cylinder vertical seam calculation cylinder vertical seam weld Table 4-2 [vii]

weld

3 Top thermal shield cylinder Duke WC-13 Top thermal shield cylinder to MRP-189, Rev. 1,to bottom thermal shield calculation bottom thermal shield cylinder Table 4-2 [vii]cylinder circumferential circumferential seam weld

seam weld

4 Core barrel top and bottom BAW-2248A, WC-20 Core barrel top and bottom cylinder MRP-189, Rev. 1,cylinder vertical seam weld Section 2 [ix] vertical seam weld Table 4-2 [vii]

5 Core barrel top cylinder to BAW-2248A, WC-21 Core barrel top cylinder to core MRP-189, Rev. 1,core barrel bottom cylinder Section 2 [ix] barrel bottom cylinder Table 4-2 [vii]circumferential seam weld circumferential seam weld

6 Plug weld locking dowel BAW-2248A, WC-94 Plug weld locking dowel flush with MRP-189, Rev. 1,flush with special flat head Section 2 [ix] special flat head baffle-to-former Table 4-2 [vii]baffle-to-former shoulder shoulder screw

screw

7 Core support shield cylinder BAW-2248A, WC-43 Core support shield cylinder to top MRP-189, Rev. 1,to top and bottom flange Section 2 [ix] and bottom flange circumferential Table 4-2 [vii]

circumferential seam weld seam weld (WC-43)

8 Core support shield cylinder BAW-2248A, WC-44 Core support shield cylinder to vent MRP-189, Rev. 1,to vent nozzle weld Section 2 [ix] nozzle weld Table 4-2 [vii]

9 Core support shield cylinder BAW-2248A, WC-46 Core support shield cylinder to MRP-189, Rev. 1,to outlet nozzle weld Section 2 [ix] outlet nozzle weld Table 4-2 [vii]

10 Flow deflector (U-baffle) BAW-2248A, WC-48 Flow deflector (U-baffle) segments MRP-189, Rev. 1,segments weld Section 2 [ix] weld Table 4-2 [vii]

Controfled Document

AREVA NP Inc. ANP-3186NPRevision 1Paae 3-13ONS License Renewal Scope and MRP-1 89. Rev. 1 ComDarison


11 Core support shield lifting BAW-2248A, WC-49 Core support shield lifting lug to top MRP-189, Rev. 1,lug to top flange weld Section 2 [ix] flange weld Table 4-2 [vii]

12 Core support shield cylinder BAW-2248A, WC-51 Core support shield cylinder MRP-189, Rev. 1,vertical seam weld Section 2 [ix] vertical seam weld Table 4-2 [vii]

13 Round (LOCA) bars to core BAW-2248A, WC-52 Round (LOCA) bars to core support MRP-189, Rev. 1,support shield cylinder ID Section 2 [ix] shield cylinder ID surface weld Table 4-2 [vii]

surface weld

14 Flow deflector (U-baffle) to BAW-2248A, WC-53 Flow deflector (U-baffle) to core MRP-189, Rev. 1,core support shield cylinder Section 2 [ix] support shield cylinder weld Table 4-2 [vii]

weld

15 Guide block to core support BAW-2248A, WC-105 Guide block to core support shield MRP-189, Rev. 1,shield vent nozzle fillet weld Section 2 [ix] vent nozzle fillet weld Table 4-2 [vii]

16 CRGT flange to CRGT pipe BAW-2248A, WC-41 CRGT flange to CRGT pipe (all MRP-189, Rev. 1,(all around except at the 4 Section 2 [ix] around except at the 4 scallops) Table 4-2 [vii]

scallops)

17 CRGT pipe to plenum cover BAW-2248A, WC-65 CRGT pipe to plenum cover plate MRP-189, Rev. 1,plate weld Section 2 [ix] weld Table 4-2 [vii]

18 Flow distributor flange to BAW-2248A, WC-57 Flow distributor flange to flow MRP-189, Rev. 1,flow distributor head Section 2 [ix] distributor head circumferential Table 4-2 [vii]

circumferential seam weld seam weld

19 Incore instrument guide BAW-2248A, WC-158 Incore instrument guide tubes MRP-189, Rev. 1,tubes (center and Section 2 [ix] (center and peripheral) to flow Table 4-2 [vii]peripheral) to flow distributor head weld

distributor head weld

20 Incore instrument guide BAW-2248A, WC-159 Incore instrument guide tube MRP-189, Rev. 1,tube (center) to flow Section 2 [ix] (center) to flow distributor head and Table 4-2 [vii]

distributor head and gusset gusset weldweld

21 Spider to lower grid rib BAW-2248A, WC-160 Spider to lower grid rib section weld MRP-189, Rev. 1,section weld Section 2 [ix] * Table 4-2 [vii]

ControI~ed Document

AREVA NP Inc. ANP-3186NPRevision 1Paae 3-14ONS License Renewal Scone and MRP-189. Rev. 1 Comnarison


22 Support post to lower grid BAW-2248A, WC-5 Support post to lower grid forging MRP-189, Rev. 1,forging weld Section 2 [ix] weld Table 4-2 [vii]

23 Lower grid forging (or BAW-2248A, WC-8 Lower grid forging (or weldment) to MRP-189, Rev. 1,weldment) to lower grid Section 2 [ix] lower grid shell forging weld Table 4-2 [vii]

shell forging weld

24 Bolting plug to support post BAW-2248A, WC-97 Bolting plug to support post weld MRP-189, Rev. 1,weld Section 2 [ix] Table 4-2 [vii]

25 Locking pin (for lower grid BAW-2248A, WC-99 Locking pin (for lower grid rib MRP-189, Rev. 1,rib section cap screw) to Section 2 [ix] section cap screw) to lower grid rib Table 4-2 [vii]

lower grid rib section weld section weld

26 Locking pin (for lower grid BAW-2248A, WC-100 Locking pin (for lower grid support MRP-189, Rev. 1,support post cap screw) to Section 2 [ix] post cap screw) to lower grid rib Table 4-2 [vii]lower grid rib section weld section weld

27 Support post to flow BAW-2248A, WC-142 Support post to flow distributor MRP-189, Rev. 1,distributor plate weld Section 2 [ix] plate weld Table 4-2 [vii]

28 Flow distributor plate to BAW-2248A, WC-142 Flow distributor plate to lower grid MRP-189, Rev. 1,lower grid shell forging weld Section 2 [ix] shell forging weld Table 4-2 [vii]

29 Two plenum cover support BAW-2248A, WC-18 Two plenum cover support ring MRP-189, Rev. 1,ring segments to form a Section 2 [ix] segments to form a complete Table 4-2 [vii]complete plenum cover plenum cover support ring weld

support ring weld

30 Plenum cover support ring BAW-2248A, WC-19 Plenum cover support ring to MRP-189, Rev. 1,to plenum cover support Section 2 [ix] plenum cover support flange weld Table 4-2 [vii]

flange weld

31 Plenum cover weldment BAW-2248A, WC-28 Plenum cover weldment ribs to MRP-189, Rev. 1,ribs to each other weld Section 2 [ix] each other weld Table 4-2 [vii]

32 Plenum cover weldment BAW-2248A, WC-29 Plenum cover weldment ribs to MRP-189, Rev. 1,ribs to support ring and Section 2 [ix] support ring and support flange Table 4-2 [vii]

support flange weld I weld

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ON~ I ir~n~ R~n~w~I Se~rtnA ~nd MRP-lRq R~i I (~r~mn~ri~nn


33 Plenum cover bottom flange BAW-2248A, WC-30 Plenum cover bottom flange to MRP-189, Rev. 1,to plenum cover weldment Section 2 [ix] plenum cover weldment ribs weld Table 4-2 [vii]

ribs weld

34 Plenum cover plate to BAW-2248A, WC-31 Plenum cover plate to plenum MRP-189, Rev. 1,plenum cover weldment ribs Section 2 [ix] cover weldment ribs weld Table 4-2 [vii]

weld

35 Plenum cover support BAW-2248A, WC-126 Plenum cover support flange to the MRP-189, Rev. 1,flange to the bottom of Section 2 [ix] bottom of plenum cover weldment Table 4-2 [vii]

plenum cover weldment ribs ribs weldweld

36 Plenum cover lifting lug BAW-2248A, WC-127 Plenum cover lifting lug base block MRP-189, Rev. 1,base block between 2 Section 2 [ix] between 2 plenum cover weldment Table 4-2 [vii]






39 Plenum cover rib pads to BAW-2248A, WC-133 Plenum cover rib pads to plenum MRP-189, Rev. 1,plenum cover weldment rib Section 2 [ix] cover weldment rib weld Table 4-2 [vii]

weld

40 Plenum cover plate to the BAW-2248A, WC-142 Plenum cover plate to the top of MRP-189, Rev. 1,top of plenum cover Section 2 [ix] plenum cover weldment rib weld Table 4-2 [vii]weldment rib weld

41 Plenum cover weldment rib BAW-2248A, WC-142 Plenum cover weldment rib to the MRP-189, Rev. 1,to the other weldment rib Section 2 [ix] other weldment rib weld Table 4-2 [vii]

weld

Controlled Document

AREVA NP Inc. ANP-3186NPRevision 1Pane 3-16ONS License Renewal Scone and MRP-189. Rev. 1 Comnarison


42 Plenum cylinder to top and BAW-2248A, WC-34 Plenum cylinder to top and bottom MRP-189, Rev. 1,bottom plenum cylinder Section 2 [ix] plenum cylinder flanges Table 4-2 [vii]flanges circumferential circumferential seam weld

seam weld

43 Plenum cylinder vertical BAW-2248A, WC-37 Plenum cylinder vertical seam weld MRP-189, Rev. 1,seam weld Section 2 [ix] Table 4-2 [vii]

44 X-750 dowel to upper grid BAW-2248A, WC-22 X-750 dowel to upper grid fuel MRP-189, Rev. 1,fuel assembly support pad Section 2 [ix] assembly support pad weld (except Table 4-2 [vii]

weld (except DB) DB)

45 Cap screw to upper grid fuel BAW-2248A, WC-23 Cap screw to upper grid fuel MRP-189, Rev. 1,assembly support pad weld Section 2 [ix] assembly support pad weld Table 4-2 [vii]

46 Locking pin (for cap screw BAW-2248A, WC-95 Locking pin (for cap screw to MRP-189, Rev. 1,to joining upper grid rib Section 2 [ix] joining upper grid rib section to Table 4-2 [vii]

section to upper grid ring upper grid ring forging) to upperforging) to upper grid rib grid rib section weld

section weld

Notes:

1. In BAW-2248A there are two brazements specifically discussed (CRGT assembly guide tubes and rod guide sectors brazed

to the CRGT assembly spacer castings). These brazement configurations are specifically discussed in MRP-189, Rev. 1

Section 2.3.4; however no brazements are included in Table 4-2 of MRP-1 89, Rev. 1, only welds. As noted in MRP-1 57,

Section 4.4.6, although these CRGT assemblies may be subject to age-related degradation, such degradation is not expected

to have a significant effect on control rod drop times. In the case where a single control rod assembly is prevented from fully

inserting, there is sufficient excess reactivity from the other control rod assemblies such that safe shutdown can be assured.

Therefore, these items do not warrant a discussion within this document.

2. There is no discussion of any of the welds associated with the vent valve misc. locking device parts or [

Controlled Document



3.2 Component Item Comparison

Table 3-1 and Table 3-2 of this report contain a comparison of the components items

and welds contained in the LR scope for the ONS RV Internals and MRP-189, Rev. 1.

As shown in the tables, three component items are contained in the LR scope for the

ONS RV Internals and are not identified in MRP-189, Rev. 1:

1. Vent Valve Misc. Locking Device Parts (original) (Table 3-1, item 48)

2. Vent Valve Misc. Locking Device Parts (modified) (Table 3-1, item 49)

3. [ ] (Table 3-1, item 111)

Any necessary program modifications regarding items 48, 49, and 111 from Table 3-1 of

this report are discussed in Section 3.3 of this report.

Controlled Document

AREVA NP Inc. ANP-3186NPRevision 1Page 3-18ONS License Renewal Scope and MRP-189, Rev. 1 Comparison

Additionally, during a records search performed in 2009 and 2010, a feature unique to

ONS-1 was identified for the plenum cover weldment rib pads. Each of the 32 plenum

cover rib pads at ONS-1 is fastened to the plenum cover ribs with two Type 304 screws

and one Alloy X-750 dowel. At the six other operating B&W units, the plenum cover rib

pads are welded to the plenum cover weldment ribs. Since this unique feature was not

known during the preparatory work leading up to MRP-227-A or the initial scope work

performed for license renewal for the ONS units, the Alloy X-750 dowel and Type 304

screws and their locking welds at this location were not included in the ONS scope nor

evaluated in the MRP screening documents.

AREVA previously performed a screening for the Alloy X-750 dowel, Alloy X-750 dowel

locking weld, Type 304 screws, and Type 304 screw locking welds. The screening was

performed using the same screening process and criteria that was used for other

locations and documented in MRP-1 89, Rev. 1. The Alloy X-750 dowel and the Type

304 screws and their locking welds were screened as Category "A" items. The Alloy X-

750 dowel locking welds were screened as Category "Not A" due to being potentially

susceptible to primary water SCC (PWSCC). However, a functionality assessment of

Controlled Document



the Alloy X-750 dowel locking weld categorized this component item as "No Additional

Measures" per MRP-227-A. Therefore, no additional augmented inspection is required

for this location.

3.3 Program Modifications

This section discusses the background of the identified component items and any

program modifications necessary based on the identification of these component items

contained in the LR scope for the ONS RV Internals as discussed in Section 3.2 of this

report.

3.3.1 Misc. Locking Device Parts (Original and Modified)

Section 3.2 of this report identifies component items contained in the LR scope for the

ONS RV Internals that are not contained in MRP-189, Rev. 1. Two of these component

items are the vent valve misc. locking device parts (both original and modified, see

Figure 3-1, Figure 3-2, Figure 3-3, and Figure 3-4 of this report).

Vent Valve Lockinq Device Background

Controlled Document

AREVA NP Inc. ANP-3186NPRevision 1Page 3-20ONS License Renewal Scope and MRP-1 89, Rev. 1 Comparison

Controlled Document

AREVA NP Inc.

ONS License Renewal Scope and MRP-1 89, Rev. 1 Comparison

ANP-3186NPRevision 1Page 3-21

Materials of Construction

The general materials of construction for the vent valve original misc. locking device

parts are identified in Reference [ix] and are listed in Table 3-3 of this report.

Table 3-3: Vent Valve Locking Device Materials of Construction ofInterest

Component Item Material Specification Type orGradelClass

Misc. Locking Device Stainless Steel A 240 Tp. 304Parts (original) A 276 Tp. 304

A 276 Tp.431--- A-286

Misc. Locking Device Stainless Steel A 240 Tp. 304Parts (modified)

SA-479 or Tp. 304SA-182 or F304

SA-193 Gr. B8 or B8M

NiCrFe Alloy MIL-N-23228A Cond. A(Alloy 600) or SB-168 ---

MIL-N-23229A AM.2T1 Cond. Aor SB-166 ---

NiCr Alloy AMS-5662C or ---(Alloy 718) SA-637 Gr. 718

Controlled Document


The original and modified vent valve locking device drawings as well as the parts to be

replaced and the modified locking device parts are identified in the FCAs; these parts

are listed in Table 3-4 of this report.

Controlled Document


Figure 3-1: Original Vent Valve Locking Device Schematic

Controlled Document


Figure 3-2: Original Vent Valve Locking Device Schematic - Cross-Section View

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Figure 3-3: Modified Vent Valve Locking Device Schematic

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Figure 3-4: [I

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Table 3-4: Vent Valve Locking Device Material Identification

Controlled Document



3.3.1.1 Identification of Screening Parameters and Criteria

The screening parameters for the component items listed in Table 3-4 are tabulated in

Table 3-5. The environmental parameters for the component items listed in Table 3-4 of

this report are the same as for the other vent valve items (see Table 3-2 of MRP-1 89,

Rev. 1, identifiers S.7-S.14). The neutron fluence is less than 5E18 n/cm 2 (E > 1.0

MeV) and the temperature is 605'F. Operating stresses for the original and modified

vent valve locking device parts were not located during the preparation of this task. The

tack, plug, and fillet welds were not confirmed to be or not to be multi-pass welds, but

due to their small size, they are likely not multi-pass welds. A cold work value of greater

than or equal to 20% is expected for those component items in the modified vent valve

locking devices that are [ I

Controlled Document


ONS License Renewal Scone and MRP-1 89 Rev 1 Comparison

Table 3-5: Vent Valve Locking Device Screening Parameters

Controlled Document


Controlled Document


ONS License Renewal Scone and MRP-189 Rev 1 Comparison

Note a - Operating stresses for the original and modified vent valve locking device parts were not located during the preparation of this task.

Note b - By examination of the applicable drawing, determination of a multi-pass weld is not possible. However due to the small size of this weld, it is unlikely

that this is a multi-pass weld.

Controlled Document



3.3.1.2 Characterize and Screen for Degradation

The original and modified vent valve locking device items for the three ONS units

identified in Table 3-4 of this report need to be screened using the screening process

and criteria that has been used for other RV Internals component items and

documented in MRP-1 89, Rev. 1, and Section 3. The screening criteria used are those

detailed in Table 3-1 of MRP-1 89, Rev. 1. This table is repeated as Figure 3-5 of this

report. Each age-related degradation mechanism is screened for each PWR internals

component item by comparing the values in Table 3-5 against the screening criteria in

Figure 3-5 and the results are contained in Table 3-6 of this report. An aging

mechanism is screened in if the screening criteria are met or exceeded for that

component item. Otherwise, the aging mechanism is screened out for the component

item. If a value is unknown (e.g., operating stress), it is assumed to have exceeded the

applicable screening criteria.

Controlled Document


Figure 3-5 MRP-189, Rev. 1 Screening Criteria

wear Fatigue Thermal Aging Irradiation Void Irradiation StressSOC IA C WF Embrlttlement Embrlttlement Swelling Relax. and Creep

Austanitdc stainless steel (stress > 30 ksa and(Types 3041304L. 3131t6L Cold-work CASS&321,347.348, and Nitronlc 60) a 20%) ormultpass welds Ausonific

SithvessAustenitic Stainless steel welds ress>30 ksl ,ndferite Al alloys Setaf Weds(Types 308/308L and Relative Contlrlugal316/3161) modon casting. >20% Aus tnIfc AuslenJtic

Martensltic stainless steel Example fentte tafn/• .•te# ,stn•ss(Typos 403.,410.o431) Stress88ks! Alaloys control rod Al alloys Or >1.0E21 rVcmn. Steeland

For - 2F21 guide lubas CUF>0.t Static E > 1.0 IOV Welds ThoimaiSRornlyivan' or (0 40-yrs) casing/SS 11.5 dal( Temperatur (see Note 1)

Maitensitic PH stainless steoas > r, tM>V C8>L C ping Or welds with CASS S a e 6081F BotIed or spring(Typos I 5-SPH and I 7-4PH) p dpo], se5 fore Bolted or I0.50% Mo. Aust feic (320-C) locations raw'"lng

SCC crida ExampW.: sMng >20% frent: S.lnloso Stool and fluence peload for

Austonitlc PH stainless steals strw _> 70 ksl•nd asuface For higher ma" lodge Kems with > 0.50% Weds > 1.3E22 tunctionanty(A.oy A-286) cold-work orhot-headed Isaiice. betweeni ieie M0. >14% > 67E20 rdCm', E > Iffadiatdon-or shot peened bolts Screen•ng internals and SRIIC Is lferite Wltcm, > I MeV 1.0 MeV (20 enhanced SR/IC

stress RV applicable Or 11 dpa) dpal _ 1 .3E20 nf/rn',CASS Stress> 35 ksl and forrite (MPa) o. 0r Example: e 3.3E20 Warn. (Other alloys (Other > IMoV (0.2 dpa](Types CF-8 and CF-3M) (5% 15S.4 Bolted or baffle-IC- > IMeV exceeding alloys Apples to at

WI(OW) Spring items former (0.5 ripe austetic exceeding bolted or sprtngAustanitic NI-basoe Alloys stress> 3 krJ +789.65 twere SR/IC bolts (It accoant for stak'ess Steel the criteria locations.(Alloy 600) Is applicable potential criterion are ao are to be

Austonltlc Ni-bas" Welds Examnpe: syn-gt be er.aned in scoeenod I(Alloys 182 and 82) strew 3S kr• baffle-to- effects) too.) too.)

former boi•s MAfrfns•lc and

M.2flensicAustantlic PH NI-base Alloys stress > 100 ksl (X-750) or PH SMsnjss(Alloys 718 and X-750) 1 130 ksi (718) Sleet

AN locationsCo-base Alloys not susceptile in Intrnals(Sltto 16) locations

Controlled Document

AREVA NP Inc.

ONS License Renewal Scone and MRP-189. Rev. 1 ComDarison

ANP-3186NPRevision 1Paae 3-34

Table 3-6: Vent Valve Locking Device Initial Screening Results

Original/ Drawing ?, 0 aModified Part o to 4)

Number 0 0) .2 "• 0

C. '- 25 - 0 "Ca. 0 :p~

.6~ E ~E 0o VMF- L..U W > !

Original [ ] [ Austenitic A A Not A A A A ASS A

Original [ ] [ ] Austenitic A A Not A A A A ASS A

Original [ ] [ J Austenitic A A A A A A A ANotea

PH SS

Original [ ] [ ] Austenitic A A A A A A A ASS

Original [ ] [ ] Martensitic Not A A A Not A A A ASS A

Original [ ] [ ] Austenitic A A A A A A A ANotea

SS

Original [ ] [ Austenitic A A A A A A A ANotea

SS

Original Martensitic Not A A A Not A A A ASS A

Original [ ] [ Austenitic A A A A A A A A] ss

Controlled Document

AREVA NP Inc.

ONS License Renewal Scooe and MRP-1 89. Rev. 1 Comparison

ANP-3186NPRevision 1Paae 3-35

Original/ Drawing ;,0.Modified Part 0 a)

Number .0 .0E= &,iE .2 'E LIo

au.~ 0 cc .2~~O.)U) E c*ac

0LL . s

41 E ~E o0L-w W > cci

Modified [ ] [ I Austenitic Not A A A A A A ANi-Base A

Modified [ ] [ ] Austenitic Not A A A A A A ANi-Base A

Modified [1 [ ] Austenitic A A A A A A A ASS

Modified [ Austenitic Not A A A A A A ANotea

PH Ni-Base A

Modified ] Austenitic Not A A A A A A ANotea

PH Ni-Base A

Modified [ ] [ ] Austenitic Not A A A A A A ANi-Base A

Modified [ ] [ ] Austenitic A A A A A A A ASS

Modified [ 1 [ Austenitic Not A A A A A A ANi-Base A

Modified [ ] " ] Austenitic A A A A A A A ASS

Modified Austenitic Not A A A A A A AI Ni-Base A

Controlled Document



Note a - As depicted in Figure 3-5, thermal stress relaxation (SR) is applicable for bolted or spring locations requiring

preload for functionality, while irradiation-enhanced SR/IC has a fluence requirement of >1.3E20 n/cm 2 (E > 1.0 MeV)

for all bolted or spring locations. Therefore, only thermal SR is applicable to this component item. However, in Rev. 1

of MRP-189, thermal SR was not considered as a separate aging degradation mechanism in the absence of

irradiation-enhanced stress relaxation and creep due to laboratory tests and operating experience. Therefore, this

component item is initially screened as Category A because both thermal and irradiation-enhanced SR are not

applicable.

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3.3.1.3 Failure Modes and Effects Criticality Analysis (FMECA)

The objective of the failure modes and effects criteria analysis (FMECA) is to provide a

systematic, qualitative review to identify components of RV internals component items

and age-related degradation mechanisms that potentially results in degradation leading

to significant risk. The FMECA is used to examine the susceptibility and safety and

economic consequences of identified RV internals components item/age-related

degradation mechanism combinations. The FMECA approach uses inductive reasoning

to ensure that the potential failure of each component item is analyzed, to determine the

results or effects thereof on the system, and to classify each potential failure mode

according to its severity.

Each failure mode was judged on its importance to risk, based on the susceptibility and

severity of consequences. Consequences were examined from two perspectives:

safety and economic. A risk matrix was developed to correlate the consequence

severity of a particular age-related degradation mechanism with the susceptibility of that

particular mechanism. Different risk banks were used within the matrix to categorize the

level of risk of a particular component item/degradation mechanism pair, and provide

guidance on the strategies that should be developed to reduce the corresponding risk

and a basis for ranking and categorization.

The risk matrix established for the development of MRP-227-A is shown in Figure 3-6 of

this report. The results of the FMECA are shown in Table 3-7.

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Figure 3-6 FMECA Risk Band (Safety or Economic)

Increasing Suscepfibty from B to D.hl

B C D

ilU

g

I ~*0

1

2

3

H III III

III IV IV

IV V VF

4

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Table 3-7: Vent Valve Locking Device FMECA Results

SCC IASCC ISR & Crep Wear Fiu IE VS

Original I --a' is-MoiidPart Description UF

Original [ ] A A A A A A C 1 21 S] BAA AAAAiA aI 86

Original [ ] A A A A A A C 1•2 1 1 A A A A A AA A B5

Original [ ]AA AA AA AA

Original [ ] A A A A A A A A A A A A A A A A A

Original [ ]A A A A A A iA A A A A A A A , A A

Original [ 3 B 1 21 A A A A A A A A A B i 2! A A A A A A

Original [ ] A A A A A A A AA A A A A A A A A

Original [ ] A A A A A A A A A A A A A A A A

Original [3 12 1 A A A A A A A A A B 12I1 A A A A AA

Original [ BA AA 51 2 I AiAA A A A

Modified [ ] l 2 ISA A A AA AA AA AA A A A a

Modified [C I 2 1 5 AA AMdie ] CI T|BAA AA A A A A A A A A iA A B

Modified [A A A A A A A A A AA AA A A A A

Modified [ 1 2 1 A A A A A A A A AA AA A A A A

Modified [ 1 B 2 A A A A A A A A A A A A A A A A

Modified [ C I 2 I 1 B A A A

Modified [ ] A A A A A A A A A A A A A A A A A

Modified [ BI2[ AAAAA A A A A A A A A A A A

Modified [ 2 A A A A A A A A A A B 2 1 A A A A , A A

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AREVA NP Inc.

ONS License Renewal Scooe and MRP-189. Rev. 1 ComDarison

ANP-3186NPRevision 1 -Pare 3-40

SCC IASCC ISR&C Wear Fatigue TE IE VS

Orgia Is 9 1: M t a, A aaAPar Decito U- -g U, 1 g C 1

Modified [.]

Moiie ] 21I A A A A A A A A A A A A A A A A

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3.3.1.4 Categorization of Component Items

The categorization of component items uses the initial screening results (Section

3.3.1.2) and the FMECA results (Section 3.3.1.3) to separate the component items into

Category A, B, and C. Definitions of Categories A, B, and C and their respective criteria

are listed in Section 5 of MRP-189, Rev. 1. The results are shown in Table 3-8.

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AREVA NP Inc.



Table 3-8: Preliminary Categorization of Vent Valve Component Items

GE

•E .2 E .0- - (D COriginal/ Part Description CO u E • .Modified M 1 E ") "0 "0• o ,-U ") -r ""

=0, E -t EL<Iw wu > 0

0Original [ ] A A B A A A A A B

Original [ A A B A A A A A B

Original [ " A A A A A A A A A

Original [ ] A A A A A A A A A

Original [ ] A A A A A A A A A

Original [ 1 A A A A A A A A A

Original [ " A A A A A A A A A

Original [ 1 A A A A A A A A A

Original A A A A A A A A A

Modified [ ] B A A A A A A A B

Modified B A A A A A A A B

Modified A A A A A A A A A

Modified [ A A A A A A A A A


Modified " ] B A A A A A A A j B

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AREVA NP Inc.



o. E0)

C. *~ E .2 EOriginal/~ 4) .2Wi 4Oiia/ Part Description E) 0 929rModified - E I- m 0O CLLL -. 0 M. 4) C A

~E ~E Z 4.0< E 0

W W > C) 0

Modified A A A A A A A A A

Modified[



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3.3.1.5 Engineering Evaluation and Assessment and Categorization for

Inspection

The component items screened as non-Category A component items in Table 3-8 are

as follows:

° Original vent valve locking device: [ ] for wear

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Additionally, the ONS units perform a visual inspection each refueling outage and a VT-

3 inspection during the 10-year ASME B&PV Code inservice inspection (IS[) intervals of

the vent valves. The accessible surfaces of the vent valves are visually inspected,

including the locking devices. [x] [] For these reasons, the original vent

valve locking device [ ] are further categorized as

"No Additional Measures" for the ONS units. [

Therefore, loss of material of the locking devices on the original vent valve assemblies

due to wear is adequately managed by the ASME B&PV Code Section Xl programmatic

controls along with the valve testing and inspection requirements each refueling outage.

* Modified vent valve locking device: [

] for PWSCC

The modified vent valve items that are fabricated from Alloy 600 and potentially

susceptible to PWSCC are the [

I

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AREVA NP Inc.



Therefore, it is likely that the visual inspection performed during each refueling outage

as well as the VT-3 visual inspection of the vent valve retaining rings performed on the

10-year ISI interval would detect the jackscrew turning, indicating potential cracking or

damage to the [

1 For

these reasons, the modified vent valve locking device [

J are further categorized as "No Additional Measures" for the

ONS units.

Therefore, cracking of the Alloy 600 locking devices on the modified vent valve

assemblies due to PWSCC is adequately managed by the ASME B&PV Code Section

Xl programmatic controls along with the valve testing and inspection requirements each

refueling outage.

However, it is noted that in MRP-227-A the existing program in place for vent valve

locking device aging management at ONS is not identified as such in Table 4-7 (of

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MRP-227-A). Duke is working with the MRP to establish interim guidance to account for

this discrepancy and incorporate the appropriate information in the next revision of

MRP-227. Therefore, in this document, ONS assumes that the visual inspections

currently performed are equivalent to an Existing Program for MRP-227 implementation.

3.3.2 [ 1

Section 3.2 of this report identified that [ ] were

omitted from MRP-1 89, Rev. 1 and were contained in the LR scope for the ONS RV

internals. As such, these component items are subject to aging management review.

I

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AREVA NP Inc.


Materials of Construction


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Figure 3-7: [I

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AREVA NP Inc.



Figure 3-8: [I

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Table 3-9: [ I

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Note a - All stainless steel welds assumed to be either Type 308 or 308L material, in

accordance with standard industry practice at the time of fabrication.

Note b - The Ni-base alloy weld material is assumed to be Alloy 69, Alloy 82, or Alloy

182 material, in accordance with standard industry practice at the time of fabrication.

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AREVA NP Inc.



3.3.2.1 Identification of Screening Parameters and Criteria

The screening parameters for the component items listed in Table 3-9 are tabulated in

Table 3-10. The environmental parameters for the component items listed in Table 3-9

of this report are [

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Table 3-10: [ I

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Revision 1Page 3-56ONS License Renewal Scope and MRP-189, Rev. 1 Comparison

Controlled DocumentAREVA NP Inc. ANP-3186NP

Revision 1Page 3-57ONS License Renewal Scope and MRP-1 89, Rev. 1 Comparison

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Controllecd DocumentAREVA NP Inc. ANP-3186NP

Revision 1Page 3-59ONS License Renewal Scope and MRP-189, Rev. 1 Comparison

Controi~ed Document


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3.3.2.2 Characterize and Screen for Degradation

The [ ] for the three ONS units identified in Table 3-

9 of this report need to be screened using the screening process and criteria that has

been used for other RV Internals component items and documented in MRP-1 89, Rev.

1. The screening criteria are provided in this report as Figure 3-4. Each age-related

degradation mechanism is screened for each PWR internals component item by

comparing the values in Table 3-10 against the screening criteria in Figure 3-4 and the

results are contained in Table 3-11 of this report. An aging mechanism is screened in if

the screening criteria are met or exceeded for that component item. Otherwise, the

aging mechanism is screened out for the component item. If a value is unknown (e.g.,

operating stress), it is assumed to have exceeded the applicable screening criteria

(unless otherwise noted).

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Table 3-11: [

[ 1

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AREVA NP Inc.

ONS License Renewal ScoDe and MRP-189. Rev. 1 Comparison

ANP-3186NPRevision 1Paae 3-65Page 3-65

P I I II I

I

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Note a - Although it is currently unknown whether this item is susceptible to thermal embrittlement and SCC (i.e., no records search for the actual heat

treatment condition has been performed at this time), SCC is very unlikely because there are no stresses on this item once the surveillance specimen holder

tubes were removed.

Note b - Although the stress is assumed to be < 30 ksi, it is not expected that any stress on this item will be beyond the screening criterion provided as Figure

3-4 of this document.

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3.3.2.3 Failure Modes and Effects Criticality Analysis (FMECA)

The objective of the failure modes and effects criteria analysis (FMECA) is to provide a

systematic, qualitative review to identify components of RV internals component items

and age-related degradation mechanisms that potentially results in degradation leading

to significant risk. The FMECA is used to examine the susceptibility and safety and

economic consequences of identified RV internals components item/age-related

degradation mechanism combinations. The FMECA approach uses inductive reasoning

to ensure that the potential failure of each component item is analyzed, to determine the

results or effects thereof on the system, and to classify each potential failure mode

according to its severity.

Each failure mode was judged on its importance to risk, based on the susceptibility and

severity of consequences. Consequences were examined from two perspectives:

safety and economic. A risk matrix was developed to correlate the consequence

severity of a particular age-related degradation mechanism with the susceptibility of that

particular mechanism. Different risk banks were used within the matrix to categorize the

level of risk of a particular component item/degradation mechanism pair, and provide

guidance on the strategies that should be developed to reduce the corresponding risk

and a basis for ranking and categorization.

The risk matrix established for the development of MRP-227-A is shown in Figure 3 5 of

this report. The results of the FMECA for the [ are shown in

Table 3-12.

C;ontro(c 'JCC~m en

AREVA NP Inc. ANP-3186NPRevision 1Paqe 3-70ONS License Renewal Scope and MRP-189, Rev. 1 Comparison

Table 3-12: [ I

N .9 M q ii ]A

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AA

AAAA

AAA

AAAAAA

AAA

A

AAA

A

AAA

A

AAA

A

A

AAAAAAAAAA

C I IA

AAAA

A

A

AAAAAAAAAA

AA

AAAA

A

A

AAAAAAAAAA

AA

AAAA

A AA AA AA AA AA A

A AA AA A

A A

A AA AA A

A A

A A

A AA AA AA AA AA AA AA AA AA A

A AA A

A AA AA AA A

dmJ

•m•m

AA

A AA AA AA AA AA AA AA AA A

A A

A AA AA A


A A

A AA AAIA

A AA AA AA AA CI IA AA AA AA A

A A

A AA AAIA

A AA AA AA A

I I AA AA AA AA A

A A

A AA AA A


A A

A AA AA A

A

AAA

A

A A A

A A A

A A AA A AA A AA A AA A AA A AA A AA A AA A AA A A

A A AA A A

A A AA A AC I I M C 1 2 1

A A

A A

A A


A AA A

A AA A

M C A 2 1A A

A A

A A


A AA A

A AA A

MII AA A

A A

A A


A AA A

A AA AA AA A

A A

A A


A AA A

A AA AA AA A

AAAAAAAAA

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A

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A

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A

A

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B

A

AABA

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3.3.2.4 Categorization of Component Items

The categorization of component items uses the initial screening results (Section

3.3.2.2) and the FMECA results (Section 3.3.2.3) to separate the component items into

Category A, B, and C. Definitions of Categories A, B, and C and their respective criteria

are listed in Section 5 of MRP-189, Rev. 1. The results are shown in Table 3-13.

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AREVA NP Inc.



Table 3-13: [

A A A A A A A A A

A A A A A A A A A

A A A A A A A A A

A A A A A A A A A

A A A A A B A A B

A A A A A A A A A

A A A A A A A A A

C I AA A A A]

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A A A A A A A A A

]

A A A A A A A A A

A A A A A A A A A

A

A A A A A A A A A

AA A A A A A A A A

]

A A A A A A A A A

I

[ C I

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A A A A A A A A A

A A A A A A A A A

A A A A A A A A A

A A A A A A A A A

A A A A A A A A A

r A A A A A A A A A

A A A A A A A A A

[ A A A A A A A A A

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A A A A A A A A A

A

A A A A A A A A A

B A A A A A A A B

A A A A A A A A A

A A A A A A A A A

][A A A A A A A A A

[A A A A A A A A A

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AREVA NP Inc.



A A B B B A A A B

A A A A A A A A A

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3.3.2.5 Engineering Evaluation and Assessment and Categorization for

Inspection

The component items screened as non-Category A component items in Table 3-13 are

as follows:

Controlled DOCimnentAREVA NP Inc. ANP-3186NP

Revision 1ONS License Renewal Scope and MRP-1 89, Rev. 1 Comparison Page 3-78

As described in the inspection plan for the ONS units RV Internals [x], the [

] are a part of the typical core support structures that

will receive a VT-3 examination during the fourth and future 10-year inservice-inspection

(ISI) internals at ONS.

As noted above, these items currently serve no function and should cracking initiate the

worst scenario that could occur is that the item (or a piece of the item) could become a

loose part. [

]

Therefore the [

I are categorized as "No Additional Measures" for the ONS units and no

augmented examinations are required.

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4.0 CONCLUSIONS

As required by applicant/licensee action item #2 for the MRP-227-A SER, a comparison

was made between Table 4-1 and 4-2 in MRP-1 89, Rev. 1 and the component items

designated in the scope of license renewal for the ONS units. Once this comparison

was made, three component items were identified as being within the scope, but not in

the applicable MRP-1 89, Rev. 1 tables. These components items are as follows:

1. Vent Valve Misc. Locking Device Parts (original)

2. Vent Valve Misc. Locking Device Parts (modified)

3. [ IA review of background information pertaining to the vent valve locking devices, both

original and modified, and the [ I was made. The appropriate

drawings and the items of interest were identified. The MRP-227-A sequence steps

were used to propose any necessary modifications to the program defined in MRP-227,

as modified by the SER. The material types as well as screening parameters such as

temperature, fluence, neutron exposure, and operating stresses were identified. These

parameters were then used to compare to the screening criteria from MRP-189, Rev. 1

to perform the initial screening of these items for degradation. A failure modes and

effects criticality assessment (FMECA) was performed and a preliminary categorization,

using the degradation screening results as well as the FMECA was performed. Finally,

an engineering evaluation and assessment was used to categorize the component

items for inspection.

The results are as follows:

1. Vent Valve Misc. Locking Device Parts (original) - Categorized as "Category A"or "No Additional Measures"

2. Vent Valve Misc. Locking Device Parts (modified) - Categorized as "Category A"or "No Additional Measures"

3. [ ] - Categorized as "No Additional Measures"

C~otro',Ied Docum[fent



Loss of material of the locking devices on the original vent valve assemblies due to

wear and cracking of the Alloy 600 locking devices on the modified vent valve

assemblies due to PWSCC are adequately managed by the ASME B&PV Code Section

Xl programmatic controls along with the valve testing and inspection requirements each

refueling outage.

However, it is noted that in MRP-227-A the existing program in place for vent valve

locking device aging management at ONS is not identified as such in Table 4-7 (of

MRP-227-A). Duke is working with the MRP to establish interim guidance to account for

this discrepancy and incorporate the appropriate information into the next revision of

MRP-227. In this document, ONS assumes that the visual inspections currently

performed are equivalent to an Existing Program for MRP-227 implementation.

As described in the inspection plan for the ONS units RV Internals [x], the [

] are a part of the typical core support structures that

will receive a VT-3 examination during the fourth and future 10-year inservice-inspection

(ISI) internals at ONS.

These items currently serve no function and should cracking initiate the worst scenario

that could occur is that the item (or a piece of the item) could become a loose part.

C]

Therefore the [

are categorized as "No Additional Measures" for the

ONS units and no augmented examinations are required.

Additionally, during a previous records search, a feature unique to ONS-1 was identified

for the plenum cover weldment rib pads. Each of the 32 plenum cover rib pads at

Controlle-d Document



ONS-1 is fastened to the plenum cover ribs with two Type 304 screws and one Alloy X-

750 dowel; at the other B&W units, the plenum cover rib pads are welded to the plenum

cover weldment ribs. Since these component items were unknown during the

preparatory time of the ONS license renewal scope work and the preparatory work

leading up to MRP-227-A, they were not included in either of these tasks. Using the

MRP-227-A screening criteria and process, these component items are categorized as

"No Additional Measures"; therefore no additional augmented inspection is required for

this location.

Controlled Documient



5.0 REFERENCES

i. Materials Reliability Program: Pressurized Water Reactor Internals Inspection andEvaluation Guidelines (MRP-227-Rev. 0). EPRI, Palo Alto, CA: 2008. 1016596.

ii. Letter (from Christian Larsen) Report Transmittal: Materials Reliability Program:Pressurized Water Reactor Internals Inspection and Evaluation Guidelines (MRP-227-0),EPRI Palo Alto, CA, 2008. 1016596 (NRC Accession No. ML090160204), January 2009.

iii. Final Safety Evaluation of EPRI Report, Materials Reliability Program Report 1016596(MRP-227), Revision 0, "Pressurized Water Reactor (PWR) Internals Inspection andEvaluation Guidelines" (TAC No. ME0680), NRC Accession No. ML1 11600498, June 22,2011.

iv. Revision 1 to the Final Safety Evaluation of Electric Power Research Institute (EPRI)Report, Materials Reliability Program (MRP) Report 1016596 (MRP-227), Revision 0,"Pressurized Water Reactor (PWR) Internals Inspection and Evaluation Guidelines"(TAC No. ME0680), NRC Accession No. ML1 1308A770, December 16, 2011.

v. Materials Reliability Program: Pressurized Water Reactor Internals Inspection andEvaluation Guidelines (MRP-227-A). EPRI, Palo Alto, CA: 2011. 1022863.

vi. Nuclear Energy Institute, "Guidelines for the Management of Materials Issues," NEI 03-08, Rev. 2, January 2010. NRC Accession No. ML102880028.

vii. Materials Reliability Program: Screening, Categorization, and Ranking of B&W-DesignedPWR Internals Component Items (MRP-189-Rev. 1). EPRI, Palo Alto, CA: 2009.1018292.

viii. NRC Code of Federal Regulations, Title 10, Part 54, Section 4, "Scope," Last Approvedin Federal Register, Volume 64, page 72002, December 23, 1999.

ix. AREVA document 43-2248A, "Demonstration of the Management of Aging Effects forthe Reactor Vessel Internals," April 21, 2000. NRC Accession No. ML003708443.

x. "Oconee Units 1, 2, and 3 Proposed License Amendment Request for the ReactorVessel Internals Inspection Plan, Licensee Amendment Request Number 2010-06 -Supplement 1," June 28, 2012, NRC Accession No. ML12187A214.

xi. "Integrated Reactor Vessel Material Surveillance Program," BAW-1 543, Rev. 2, availablefrom AREVA Inc., Lynchburg, VA, February 1984.

attachment 1 ons license renewal scope and mrp-189, … · 2013. 5. 7. · ons license renewal...

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