ML16188A269

From kanterella
Jump to navigation Jump to search

Request for Relief from ASME Section XI Volumetric Examination Requirements - Fourth 10-Year Interval
ML16188A269
Person / Time
Site: Pilgrim
Issue date: 06/29/2016
From: Perkins E
Entergy Nuclear Operations
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
PNPS-ISI-001
Download: ML16188A269 (126)
v • d • e


Text

A

  • =--=* Entergx June 29, 2016 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 Entergy Nuclear Operations, Inc.

Pilgrim Nuclear Power Station 600 Rocky Hill Road Plymouth. MA 02360

SUBJECT:

Requests for Relief from American Society of Mechanical Engineers (ASME)

Section XI Volumetric Examination Requirements - Fourth 10-Year Interval Pilgrim Nuclear Power Station Docket No. 50-293 Renewed License No. DPR-35 LETTER NUMBER: 2.16.036

Dear Sir or Madam:

Pursuant to 1 O Code of Federal Regulations (CFR) 50.55a(g)(6)(i), Entergy Nuclear Operations, Inc. (Entergy) requests relief from the requirements of the ASME, Boiler and Pressure Vessel Code,Section XI pertaining to volumetric examinations at Pilgrim Nuclear Power Station (PNPS). In several locations, the required coverage cannot be obtained due to interference or geometry. Individual relief requests are provided in the attachments, divided by examination category.

1 O CFR 50.55a(g)(5)(iii) requires that the basis for the determination of impracticality be submitted to the NRC for review and approval within 12 months after the expiration of the 120-month inspection interval. These reliefs are for the Fourth PNPS 10-Year lnservice Inspection Interval. The fourth 10-year interval started on July 1, 2005. The fourth 10-year interval ended June 30, 2015.'

If you have any questions or require additional information, please contact me at (508) 830-8323.

Sincerely,

~g\\"k~~

Everett P. Perkins, Jr.

4 Regulatory Assurance Manager EPP/mew Attachments:

1.

Request for Relief - PNPS-ISl-001

2.

Request for Relief - PNPS-ISl-002

3.

Request for Relief - PNPS-ISl-003

4.

Request for Relief - PNPS-ISl-004

5.

Request for Relief - PNPS-ISl-005

6.

Component Limited Examination Information

Entergy Nuclear Operations, Inc.

Pilgrim Nuclear Power Station cc:

Mr. Daniel H. Dorman Regional Administrator, Region I U.S. Nuclear Regulatory Commission 2100 Renaissance Blvd., Suite 100 King of Prussia, PA 19406-2713 Ms. Booma Venkataraman, Project Manager Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop 0-8C2A Washington, DC 20555 NRC Senior Resident Inspector Pilgrim Nuclear Power Station Letter No. 2.16.036 Page 2 of 2 to Letter 2.16.036 Request for Relief - PNPS-151-001 (58 Pages) to Letter 2.16.036 Page 1 of 58 Components I Numbers:

Code Classes:

References:

REQUEST FOR RELIEF - PNPS-ISl-001 Reactor Vessel Shell and Head welds I See Attachment 6 Table 1-1 for component numbers American Society of Mechanical Engineers (ASME) Code Class 1 ASME Section XI 1998 Edition w/ 2000 Addenda, Table IW8-2500-1, ASME Section XI 2001 Edition w/ 2003 Addenda, Table IW8-2500-1, Code Case N-460 Examination Category:* 8-A Item Number{s)

==

Description:==

Unit/ Inspection Interval Applicability:

81.12, 81.21 Pressure Retaining Welds in Reactor Vessels - Inspection Program 8

Pilgrim Nuclear Power Station (PNPS) I Fourth (4th) 10-Year Interval I.

CODE REQUIREMENTS ASME Section XI, Table IW8-2500-1, Examination Category 8-A, "Pressure Retaining Welds in Reactor Vessels":

Item 81.12 requires a volumetric examination of Reactor Vessel Longitudinal Shell Weld volume, as depicted in Figures IW8-2500-2 as applicable.

Item 81.21 requires a volumetric examination of Reactor Vessel Circumferential Head Weld volume, as depicted in Figures IW8-2500-3 as applicable.

II.

RELIEF REQUEST Pursuant to 10 CFR 50.55a(g)(6)(i), Entergy Nuclear Operations, Inc. (Entergy) requests relief from achieving the Code-required coverage when performing volumetric examinations of the components identified in Attachment 6 Table 1-1.

Ill.

BASIS FOR RELIEF During ultrasonic examination of the Reactor Vessel (RV) shell and head welds listed in Table 1-1, greater than 90% coverage of the required examination volume could not be obtained. Examinations were performed utilizing a POI Appendix VIII Supplement 4 and Supplement 6 qualified procedure specific to Reactor Vessel Assembly welds.

Due to the geometric configuration of the components, effective volumetric examination could only be performed from outside the vessel on the RV circumferential head weld.

The of 60"refracted longitudinal (RL) beam angle used in the axial and circumferential direction was not able to achieve greater than 90% code required volume of the RV to Letter 2.16.036 Page 2 of 58 circumferential head weld as required by Code Case N-460. Also, due to plant configuration, effective volumetric examination could only be performed from the inside of the vessel on the RV Longitudinal Shell welds. The use of 45°shear and 70° RL beam angles in the axial and circumferential direction were not able to achieve greater than 90% code required volume of the RV Longitudinal Shell welds. See Attachment 6 Table 1-1 for additional information.

Radiography is not practical on this type of vessel welds configuration, which prevent placement of the film and exposure source. To effectively perform any significant additional Code allowable ultrasonic examinations, modification and/or replacement of the component would be required. The examinations performed on the subject items in addition to the examination of other vessel welds contained in the lnservice Inspection program would detect generic degradation, if it existed, therefore demonstrating an acceptable level of integrity.

IV.

PROPOSED ALTERNATIVE EXAMINATIONS No alternative testing is proposed at this time. Entergy has examined these welds to the extent practical and will continue to perform pressure testing on the subject components as required by the Code.

V.

CONCLUSION 1 O CFR 50.55a(g)(6)(i) states:

°The Commission will evaluate determinations under paragraph (g)(5) of this section that Code requirements are impractical. The Commission may grant such relief and may impose such alternative requirements as it determines is authorized by law and will not endanger life or property or the common defense and security and is otherwise in the public interest giving due consideration to the burden upon the licensee that could result if the requirements were imposed on the facility.

Entergy believes that it is impractical to obtain greater examination coverage on these welds. To effectively obtain significant additional coverage woula necessitate modification and/or replacement of the component. The examinations performed on the subject welds, in addition to the examination of similar welds contained in the program, would detect generic degradation, if it existed, demonstrating an acceptable level of integrity. Entergy requests the proposed relief be authorized pursuant to 10 CFR 50.55a(g)(6)(i).

HITACHI Weld! U llg°th '"'

1'55.l lJ ElilQ111 Vo11.1"11

  • S2.AO 7'3' T-Sam L!W IS4 l'til A.

70* T-Sco11 C:CW ~4 N~

A 4S" T *Seon ts() F\\ll A.

70" P-Sam UP ISti l'fSI I\\

1Cf' f1*Sa!n ON 6~ N5a A

Y1=1" P.S(m 1:11!1 1-11'1 A

1~* T *$oon 1CW lSI\\ l'fSJ

-* a 70" T *SCQI\\ C.C.WIS4 N~

a 45" T -Sc.on CS6 FV1 B

7fY' P-Scon UP 15'1 Jlll51 B

70" P.St;Gn ON ~NS.

e

.!I S~ P.SO!m DO ~V, l;t 7CY' T0$lc:Gn cw*ISA t<<SJ---,

70' i-Sl'!Orl CCWts4 N~

4S-i-5am!S6M

'W P"5cQn UP 1$4 tcSJ "J(J' P.s,can ON f54 N~

16" P-5am ts6 M SPZOOO RPV EJ<amination Coverage Calculation 1 Sheet Pllgrim Unit 1.. RfO 20 Wei~ RPV.. L-1*33.BA ISheH Course 21 CQOE ClR<l$S*$ECTIONAI. AllfA TOTM. CODE (0\\IEAAGE Pl!lltttll bqulr..C &oorn AHG ~flftad of ArtG w.lti~lh Areai $q. h\\.

fWt:amcrcl'd Automoted AUtamatK 7_7 7,7 0.1

~100 7.7 7.7 Q.l 91..00 4:4.?

4'-7 0.9

  • n.oo 7.7 7.7 0,1 9t 00 7.1 7.7 0.1 91.00 ti;Q,l lj!j 7 0.. 9 91.00 n

H 0.1 46.10 n

1.7 0.1 i!D.10 44.7 44:.7 o.i:i 1.16,)1) 7.7

1) 0.1 li6..10 1.1 7.7 0.1 46.10 (J,li,l

{jll. 7 0.9 46.10

- ~ -*--*

agie acing ~fl.

w. St:ilnner head fodna up.

Petctfit Aut.eornotff U 'Ei 2'.21(.

25.0'16

~.~

2'.~

25..mt>

1.1'1.

1.1%

12~

1.l~

1.l'K.

12..711\\

llrl.Dt.\\

o

"'C <

I r I...:..

I

(.J c,,J

()0

)>

\\J r

)>

0) (tl co ::::: 0)

(tl (tl 0

..., :::::r Wf\\.)3 0

_,, (tl CJ) ::i

(]1.

00 0 w

CJ) -0

HITACHI HEdt.p 90"(+)

180"(-).

I

  • 0"(+)

VO-(.)

GE* HITACl't1 IU:lEAR EMROY Pilgrim Unit 1 Reference Drawings Vie-Ned from Back Side of Package

--~~~~~~~~Qv~~~~~~~~-....

1(

I I

-~I Scm>Alis a'

1.fl'-

CH3 CH7 CM4

[ ~*} B

~

l B Ct-16 CH9 CMS I

  • B EJ a s

CH2 CH5 CH1 Scanner Side T Ind R _._UT tymmlla:rnd:n.

~

  • SA>>

I HeadOn 270"(-)

I.. l.,)"'H u-l. i 00"{+)

t ~

1 C' I

EHTERG'I'

  • Pfl.GRlM lb Rl'\\t SCAii PACKAGE

~

NOtE I

!MG. PlG2111:s.G2 I REV Di ID RPV Vessel Scanner Package Configuration for Vertical Welds Scans

o

"'C <

I r-I

~

I CN CN 00

)>

-o r

)>

ru ro :4 co :4 ru (D

(D

(")

-, ::s

.j:::.. N 3 0

....,. (D
0) ::J U1.

00 0 w

0) -0

9 HITACHI

  • I" I

1 DI :

"4UU...... tlllJ<<~*f_lltW

.,...J1 '4.lfl11~0til8AUW11*

GE HITACHI I

U"'

'0

~..:,,

0 I

HJ*,

Pilgrim Unit 1 Reference Drawings ENTERGY - PILGRIM

,a (0J I

  • ~

"~..

I ti*'

l

~

t 1

~ I t1 w

~ v l

v~

~

\\I t;f ~ '

~

~

~

~

~

~

~~

l

  • ~ " " -

~

i

~

\\..:

( r.

~..... = - *11"-. ~ '= - -

=

.. ="'=.....

II If

... ~

I

~

n.01**

ru

~

I

.~

('

""11\\..._

~

f'Dtll.llllO~

ENTERGV

  • PllGRlM VESSEL ID ROLLO UT SCAlE. NONE Vessel Location Map OWG. PLG*20lS*Ol REV 0
a

'"C <

I r-1.....

I w w co

)>

HITACHI

~*r-v

.71~

~*~-*MJS-.1~

$.of*--*111Ci\\

5'1L5c<WI~* ~I!\\.

!Mif*-~*

..,S...

56tL~-*.. 'k

-4""""'"*n.rt;i.*n><*n-v-~.i..

  • l"

,_Qodt.O lthw:n.t

r. 014MIS-GE-HITACHI NUCL£AA *ENERGY Pilgrim Unit 1 Reference Drawings

-1ocr

.1ocr r----------..;;-.,...,_:;F---------,

I I

t

£NT(RGY

  • Ptl GAJM SHElLC~RSE 2WE1.01-338" Cross Section of Achieved Coverage "A 11 REV 0
a

"'C <

I r-1

~

I "'

w 00

t>

HITACHI l9

~

°

~*£.cml/Sano*1:15411\\

~6£>al>Voi.mo

  • M1S4ft

!oll*S

....-- 1.154 5'!'-!<xln-* l.11<1"' Sol *-&an--... ' k In S4'"'--* &oll?Sq Ill. --ottlonQo*U*lDlnctwl ~--

  • U6 dtv>!O

'-'CIQ>df

  • OlLl'l-fOtdl!'td t. t.O/Ulll-Pilgrim Unit 1 Reference Drawings

I I ~ ~ ° ltJ ~ o:* ~~ on oo Scanner Side EffTERGV

  • l'iUiRIM
  • 10.G"

~ Otl t SHfLtCOlJRSE 2 'M:lO 1*3384 I I 5CAU: NONE Cross Section of Achieved Coverage "8" {~... ] bu OWG. PLG*20lS-07 ~ ""C < I r-1..... I (,,.) (,,.) 00 )> HITACHI Pilgrim Unit 1 Reference Drawings 117.5" 60° Scanned Patches Facing Down fl HITACHI Pilgrim Unit 1 Reference Drawings 117.5 11 60° 3-339B-ml!!ll ___ mllfPfi=.-lll ________ 398.011 Scanned Patches Facing Up

o

""C < I r I..... I w (..) CX> )> HITACHI SP2000 RPV Examination Coverage Calculation Sheet Pilgrim Unit 1 - RFO 20 Weld RPV-L-1-3388 (Shell Course 2) COOE CROSS-SECTIONAL AREA TOTA\\. CODE COVERAGE P*arcent Weld Length "' 155.10 Required Exam Arf!<l Scanned of Area Weld Length El<am Volume = 52.llO Arec Sq.ir1. Automotec;I Automated Automated 70* T-Scon CW(S4 NSl A 7.7 77 0.1 I 139.10 70" T-Scon CCWl54 NSJ A 77 77 0.1 139.10 45* T-Sam [56 FVI A 44.7 44.7 0.9 139.10 70" P*S.Ccrn UP IS4 NS) A 7.7 7.7 0.1 139.10 I 70" P*Scon DN 154 NSI A 7.7 7.7 0.1 139.10 45* P-SCon 156 FVl A 44.7 44 7 0.9 139.10 70" T-Scon CW 154 NSJ 10* T-Scon CCW(S4 NSI 45* T-Scon !S6 FVI 70" P*S.Con UP 154 NS) 70" P-Scan ON ls.ti NSt 45* P-Sco11 156 fVl I - - 70" T-Scon CW !54 NSl 70" l-Scan CCW(S4 NSl 45"T-Scon [$6 FVI 10* P-Scon UP (54 NS) 70" P-Scon ON ls.ti NSI 45* P-Sco11156 fVl % Toto! Compos.ti! Cov@roge = Comments. A

  • Automated scoMirlg was not restrtcled. Scanner head facing up Note
  • Rounding methods may offectcolculated values. FV-Full volume. NS-Neor Svrfoce Weld length tn inches.

Percent Automated 3.J% 3.3% 38.3% 3.3% 3.3% 38.3% 89.7% I ..... ~*.!!<al

c.,,

I r I..... I (,.) (,.) 00 CJ ""Or)> ru CD CD ;:::: Q) CD CD 0 c; !'J 3 _.. CD 0 Q) ::J 01 0 CX> (;.) m-o fJ HITACHI HeNid Up 90"(+) Pilgrim Unit 1 Reference Drawings Viewed from Back Side of Package -zir--....o---z.ir-ENT~Y

  • P1LGRl!ld HeadDn 270(-)

....--,... 160"1-} 00'(+) ID RPV Vessel Scanner Package Configuration for Vertical Welds Scans

a

""C < I r-1 ~ I c,.) c,.) ()0 OJ HITACHI GtHllf\\CHI I - ~ ~ ~

  • . 'l
  • I'll ~

~ ; "ill "ill~ ~ ~ ~ ~ ~ ~ ~ Pilgrim1 Unit 1 Reference Drawings ENTERGY

  • PILGRIM f.

~ I ~ ~ I* l ~

  • ~
  • 11" 11 ~
  • r~ ~

ill'"' s ~

ill

~ ~ I ~~ f ~ = ~ ~ -b~ .~ee: = II ll II II U ( ~ / ,e,J.;tla1t hL'*'t -**- ENT£RG'r' * ? GRIM vrsse ID ROLLOUT SCA E NONE Vessel Location Map

o

"'C < I r I ~ I (,,) (,,) Q) aJ REV 0 ITACHI / Pilgrim Unjt 1 Reference Drawings .. ~----- LNTL -v 11LGRI., ~Mlu. ct1. ~L / *1.uo t .Ba~

S.::. l t~CNl Cross Section of Achieved Coverage *A"

~ RlV 0

o

""C < I r I ...II. I (,l (,l CXI CD HITACHI Pilgrim Unit 1 Reference Drawings 352.6" 180° Scanned Patches Facing Up

a

"'C < I r I ..Joo I (...) (...) 00 CJ ~ SP2000 RPV Examination / J :'(/.,., HITACHI 'ti 4' tJ Coverage Calculation Sheet ~ " Pilgrim Unit 1-RFO 20 Weld RPV-L-l-338C (Shell Course 2} COOE CROSS-SECTIONAL AREA TOTAL cooe COVERAGE Percent I Weld Length :s 155.10 l\\equ red Exam Area Scanned of Areo Weld Length P rc:1nt I. Exam Volume* 52.40 ArecSq, 111. Aub>motad Automated Alltomated Automated 1: 7iY' T-Scon ON t54 NSI A 7.7 7.7 7.l% 49.00 1.2% 70"' T *Scan CON 154 NSI A 1.1 7.7 7.1% l.19.00 r 1.2% 45"T-SconlS6 FVI A 44.7 44.7 SS.3% 49.100 13.5% 7a" P*Scan UP 154 NS! A 7.7 7,7 7.396 49.00 l,Z% 701 P-Scon ON 154 NSI. A 7.7 7.7 7.3% 49.00 1.2% 45" P-Scon ts6 M A 44.7 44,7 8S.3% 49.vu 13.5% 7<Y' T -scan ON (54 NSI 8 7.7 7.7 7.3% 38.10 0.9% 70" T-Scan C.CW 154 NSI 8 7.7 7.7 7.J% 38.10 0.9% 45° T*SconfS6 FVI e 44 7 44.? 8S.3% 38.10 10.5% 70- P-Scan UP fS4 NSJ 8 7.7 1.7 7.3% 38.10 0.9% 70° P-Scon ON IStl NSI B 7.7 7.7 7.3% JB.10 0.9% 4S" P-Scan ts6 FV1 - *a - 44.7 44.7 85.3% JIUO 10.5% I l<Y'T*Scan cw IS4 NSJ 70- T*Scon CCW 154 NS} I 45° T-Scon IS6 FV) 70" P*Scon UP 154 NSJ 701 P*Scon ON 154 NSI 45* Mean lS6 FVI 96 T otol Compos1~ Coverooe = 56.2% ,....0 lir1llQ! Comments: A-Automated $COOOing was restticted dtle lo p<Oliimlty of iwer Speomen HOider brocket and Jet Pump Riser Broco. Scanner 1-oeM rodng down. 8 *Automated s.c::anning wos restJic:ted due lO proximity or upper one:! lower Specimen Holdet broc:kets-Sconner neod focing up. Note - Rourxfing methods l'l"IQY affect colcul<lted volues *.. fV.fL.(I voltlme.. NS*Neor Surface. Weld lengtl'i in *llCfies ~ ""D < I r I.... I (,.) (,.) 00 n HtTACHI 270"(*) Pilgrim Unit 1 Ref ere nee Drawings Viewed from Back Side of Package

11.cr- -----

r Scll<IA;iot

-zv---:i,r-Cti3 CH7 CH4 SBS

~B~

Cl-t8 CH9 CHB D

' [

~**j B a CH2 OHS CH1 Scanner Side J"\\...J TlllldR.,.lhaUT..,_am~

~Sldit O"(<to)

a..-'

'°""' I ' ~..

u*

l HudDn 270"(-)

90'(*)

100"(--J ID RPV Vessel Scanner Package Configuration for Vertical Welds Scans

ti

""O <

I r I.....

I w w

co

()

ITACHI nr.. -

I._

~

~

GE 1-llTACHI

<O>

~

t:I..

ns~

~

~

i!

~

= * ""' --

0 H &!

Pilgrim Unit 1 Reference Drawings E NTERGV - PILGRIM

0.

~§;

I I

~

""r

~

~

~

"' f

~

~

II

~nr rv~

~',i 11~

~

~

~

~

~

. ~

. ~

~

~

~

'!~

I '

~,._

).,:; ""' - - --- -.:.. -

t= -...._ :-'-

I..... - -......... = = -- I 1 I~

II J.a*r I

_/

& ll ltf ENfEAG\\I *.,llGRIM VESSEL 0 0 lOIJr SCALE: NO E Vessel location Map OWG p G ao1S*01 l!tV 0

a

"'C r

I.....

I

(,.)

(,.)

co n

HITACHI P

1i lgrim Un it 1 Ref ere nee Drawings oa*

~

r - - - - ---- -~A~~-- -

[jJ I

t SHELL COURSE 2 ~ D 1-130(

!iCAt NllllE Cross Section of Achieved Coverage "A" Rl\\I 0

HITACHI

~.fiC-=r~*11~

~

....,...WU::t'w *-ilf"""l kl

~ 1.s.:.i~+ 1t54 h

>1r*bt"-tw...d* n~ r, S6:,.~Ad"Wl4Cl*4' 1~ h 5'P!kotAtJ

  • 4"'f.Scr..

Pilgrim Unit 1 Reference Drawings 100'

  • IOC" I

I I

I I

WT I

t

~

I

--~---

~HFI I OOIJ!l,SE Z \\l/UO 1-33&

Cross Section of Achieved Coverage *s"

a

""C <

I r-1...

I

(,..)

(,..)

CD

(')

HITACHI Pilgrim Unit 1 Reference Drawings

~

300° Scanned Patches Facing Down

a

"'ti <

I r-1 I w w

00 0

HITACHI Pilgrim Unit 1 Reference Drawings 300° 3-339 3-3 398 c:::::=====::::::;1111===:::s:::=======-IClllCll::====~

39s.o*

Scanned Patches Facing Up

o

"'C <

I r-1.....

I

(,..)

(,..)

CX>

(')

e HITACHI SP2000 RPV Examination Coverage Calculation Sheet Pilgrim Unit 1.. RFO 20 Weld RPV-L-2-338A (SheM Course 1)

CODE CROSS-SECTIONAL AREA TOTAL CODE COVERAGE PMcent Weld Lvngth

  • 12'9.10 Requlr~.EJmm AreG Scol'l(ltd ofAreo Weld length

&lam Volume *

&7.'40 AftlaSa. ln.

Automated Automatl'd' ALltomat*d 70" T-SCOI\\ CW!S4 !llSl A

9.8 5M~

0.1 97.90 70° T-SconCCW{S4 NSJ A

9.8 9.. S 0.1 97.90 4~ T *Scon 156 FVJ A

57.6 S7.6 I

0.9 97.90 I

7r:I' P..5coo UP IS4 NSI A

9.8 9..S 0.1 97.90 lr:I' P*Sean ON 154 NSI A

9..8 9,8 I

0.1 9?.90 4S-P-scon l.S6 l"VJ A

57.6 57.6 0.9 97.90 70" T*Sccin Cw {$4 NSl I

I 70° T-Scon CCW {S4 NSl i

  • ~ r-scan 156 FVI 7<r f>.Scon UP IS4 -NSl I

70- P...Scon DN 154 NSI i

45* P-SCon IS6 FVJ

  • t<V' r-scon cw 1$4 NSJ I

70" T*ScGOCCW CS4 NSI*

. 45* T*Sean 156 FVI 70- P-Scon UP (S4 NSJ 70° P~Scan ON ISll NSI tts* P*Scon t:>I) fVl

% Total Com~ite COVl!roge

  • Comments:

A-Automated 5CQ/llling was restricted due to the jet pump esilfllser. Scooner hECJd facing down.

Note * ~nding methods may offed cafwloted values. Al.full ll(JrJJme, NS-Near ScJrfoce. Weld lenqth iri in1:h.eS-Percent Automated 2.8'6 21l%

32.4%

2.8%

2..8%

32.4%

I I

7S.8%

..... 011/ZJ.IQ!

o

""C <

I r-1 I

(..)

(..)

00

)>

"'U r

)>

Ol CD cc :::::: Ol CD CD o

~ !'V 3

....... CD 0

(J') ~

(.ll 0 co (.U (J').......

0

HITACHI Heac! Up 90"(+)

1eo"(-,

O'(+)

270"(-)

Gii:* tfTACHll HIJClEAR ENERGY I

Pilgrim Unit 1 Reference Drawings Viev.ted from Back Side of Package 98 5Cilllha

1.r u
  • r CH3 CH1 CH.C s B s

[,., B ~

CH6 CH9 CHS

  • t (...., a a s

CH2 Ct! 5 CH1

\\..

Scanner Side ~

T Wldfl n b l1r trsmmci:n-..

~Slr"8 Hoad<Dn 27D'H r

O"(+I -

1801--)

u*

~

llO'(+)

~1 t ;.

2A" t

ENTERGY*N.GRIM I IOPllN~PAC~E I 5CAl.E: NJNE I coo.. Pl.G-lOI~ l Rei. 0 ID RPV Vessel Scanner Package Configuration for Vertica' Welds Scans

a

""C <

I r-1 N

I "' "'

00

)>

HITACHI IJ I~

W1 L~ *tl......... *l'IC"

~N'.. " Ill I ff.~.._*tsufll GE' lflTACHI I >= *.'

(Q hl V ca -

i rv~,.

~-

'~ ~

~

r

~

~

I' 1

~... - -.-

r 0

JW Pilgrim Unit 1 Reference Drawings ENTERGY* PILGRIM Q

~

~

~

~ -

4 H

""' L' 3

~

~ ~

rv ~

v

~

~

rrtm v

I I

~

I t

~

~

=

I' -,

' ~,.

..;:..... - -.................:. : (

~ "...._-_ J_.... -

~ =

I I

~

<U O'

/

1'JQW::,W"a.l.&.f1t'D ENTERGY

  • PllGRIM VESSEL ID ROll,.OU S

c, N<WE Vessel Location Map OWG. PLG-2015-01 REV 0

0

"'tJ <

I r I

N I

(,.)

(,.)

00 >

HITACHI GE* HITM:.Hl NUCL.£AR Et~A<;"Y Pilgrim Unit 1 Reference Drawings

  • lo.er

+ltO" r- - - - - - - - - - -_._....,.;;- - - - - - - - - -1

~HO.L COUASE 1 Yl'ELD 2*3JJIA st'..A1 r<<'l.NE Cross Section of Achieved Coverage "A*

0WG. l'Ui-ZO IS-05 AE\\I 0

tJ "ti <

I r I

N I

(..)

(..)

co

)>

HITACHI Pilgrim Unit 1 Reference Drawings Scanned Patches Facing Down

a

"'C <

I I

I I

(..)

(..)

00

~

d,. HITACHI SP2000 RPV Examination Coverage Calculation She,et

~

Pilgrim Unit 1-RFO 20 Weld RPV-L-2-3388 tShetl Course 1) cooe C~OSS-SECTIONAL AREA TOTAL CODE COVERAGE Percent weld Length

  • 129.10 Required EJlom Area Secmntd of Area Weldleogth Pef"Ctnt
EJl(Qm VolJJ!Tle..

67.~

ArlO Sq.In.

Automated A.1,1tomoted Alltomnted Automated 70* T*Scon CW{S4 NSl A

9.8 9.8 0.1 9Z.30 2.6%

70" T-SCon ccw ts4 NSI A

I 9.8 9.8 0.1 92.30 2.6%

45*f-Scon IS6 FVI A

57.6 57.6 0.9 9UO 305%

7~P..Sco:n UPIS4 NS!

A 9.8 9.8 0.1 92.30 2.6%

I 1rr P-Scon ON 154 NSI A

9.8 9.8 0.1 92..30 Z.6'6 4!1* l"-:;tCOn (Sb FV)

A 57.6 57.6 0.9 92.30 30.5%

70° T *Soon CW !SCI NSJ

?o* T-SCoii CCW [S4 NS) 45" J.S.c:on ISO FVI 1rt P*Scon UPIS4 NSl ur P*Scon ON IS4 NSI 45* P-SCon 1::.0 FVJ 70" l *Scon CW ISil NSl 70" T-SCio11 CCW lS4 NSJ 4S*T*Scoo ISC FV}

70° P-Scan UP 154 NSI 1rr P..Scon ON 154 NSI 45*

1P-SCon1~ FVI

% Total Composite Coverage =

71.5%

~o.-iw comments:

A* A1Jtomoted scxioning was restricted due to ttle jet pump citfuser. Sctlnner heod fodiig down.

Note

  • Rounding metliods moy effect calculotMI values. FV*Full \\IOlume, NS-Near Surface. Weld length in inches-

Hl~CHI Head~

90"(.. )

80"(-f-

- O'(-.)

270 (.)

II.A' Gl!,. HlfAOil MICl.E.AJ't ENERGY I

Pilgrim Un it 1 Reference Drawings Viewed from Back Side of Package o.cr Scw'!1-

......--.u 2!1'-

r CH3 CH7 CH4 8-B l~;* l

[wj B l:*]

CHS Cl-i 9 CHS

  • 0

[

~**j EJ a CH2 Oi5 CH1

\\..

Scanner Side l Md R m1t 1lw UT.,-n CZ111nK:11:n.

~Side f

O"(+)

1.C'

~

-05' Ii t =

j 2C' l

£HTEROY

  • i"i1.GRIM I I() RJ'V SC'NI RilCKAGE I 5C'.M.E. OONe I Head Dll 270"(-)

i 180"(-)

W<+)

t:IW:!.. Pl..G.201$.(12 l R£'i,! 0.

ID RPV Vessel Scanner Package Configuration for Vertical Welds Scans

a.,,

I r-1 N

I w w

00 CD

HITACHI H I

  • l lM I-*

~-

© I

I

~

~\\I"

~

~1\\1"

~ ~ r I

I

~

'! ~.'

\\

- I- - -

II Pilgrim Unit 1 Reference Drawings ENTERGY - PILGRIM 0

~0 01 I

~

I

~

I.

~

~

'~' I

~

~ 11 IUI~

r11~

~1\\1~

\\I

~..

~.

I

~

~

I v

... I- - -

~ - - -... -- -

=

=

,I -----.. - -

I II II

~ ~

Nt RGV - Pl 6<<114

\\IESSEL ID ltOLLOIJT Vessel Location Map I

. ~

~

0

"'C <

0141 trJ

!l.!!'..!-

I r-llMO I

N I w w

~..

CIO III

~

~

.... - I

~~

SCALE NON(

I DWG. PLG-201S-01 R.CV 0

HITACHI

....,_,.r-..-.usci...

    • ,. IQ..

Si T~Scwi ltl:*h.ftwd* U Sq 54... ~-*U\\1111\\

i;&T---

  • ~Uk I*

!;&!l.'ie... ~*f'*k l'J't

  • Pilgrim Unit 1 Reference Drawings 010.cr

+IOO" r - - - - - - - - - -

--~...;:...,- - - - - - - - - - -,

I

r 1

I I

I I

I I

I I

l"T.

SD\\lt HONE Cross Section of Achieved Coverage "A" AE\\I 0

o "tJ <

I r-1 N

I

(,J

(,J 00 DJ

HITACHI

/

Pilgrim Unit 1 Reference Drawings co 00 r-t)

IV) r I

N Scanned Patches Facing Down

0 "ti <

I r-I I\\)

I

(..)

(,,.)

co co

'1fii~ HITACHI SP2000 RPV Examination

,._.v Coverage Calculation Sheet Pilgrim Unit 1-RFO 20 Weld RPV-L-2-338C (Shell Course 1)

CODE CROSS-SECTIONAi.. AREA TOTAL CODE COVERAGE Pttc:ent Weld Leogth s 129.10 Required E>tam Area SC'Onn~

of Area Weld Length

&am Volume:

67.llO Area Sq. in.

Automated AA.Ito mated Automated 70° T-SCOO CW~Sll NSl A

9.8 9.8 0.1 15.00 70' T *SCOO CCW IS4 NS]

A 9.8 9,S 0.1 15.00 45*r-sc.on IS6 FVJ A

I 57.6 S?.6 0.9 15.00 70° P-Sc<ln UP ISJl NSI A

9.8 9.B 0.1 15.00 1rr P-SCon ON lS4 NSI A.

9.8 9JI 0.1 15.00 45" P*~

1:.0 l"VI A

57.6 57.6 0.9 15.vu 70" T-Sc1:1n CVJ tsi. NSI 70" f-Scxm ccw iS4 l'fSl 45* T-Scan ts6 FVJ 70' P*Saln UP IS/I N51 70- P-SCOO ON lS4 NSJ 4 s* P-scon 156 FVI 70" T *Smn ON 154 NSI 70-f*Scon CCWIS4 ~I 45* T-Scon CS6 FVJ 70' P*Scon UP (54 NSI 70"'P-SC:Qn ON 154 NS]

I 45' P*Sam 156 FVJ

'*' Totol Composite Coverage*

Comm~nts:

A

  • AUtomotecl scor'W\\ing was restncted di.re to the stvoud repair hardware. Scanner heod fooo9 down.

Nole. R(lllnding methods moy offe<t colclAoted volues.. fV-FIJll volume, NS*NeorSurioce. Weld lenoth in inches.

Percent Auti.Jmated OA%

OA'Hi 5..()%

OA%

0.4%

50%

11.6%

1

.... 0 tln.tE

0

"'C <

I r I t.l I

(,,)

(,,)

00

(')

HTACH Up 90°(+)

270"(-)

Pilgrim Unit 1 Reference Drawings Viewed from Back Side of Package

t.a'----~--

-a- - -:ur-CH3 CH 7 CH-4 S B EJ

~BG CHS CH8

~

B EJ G CH2 CH~

Scanner Side 2A' l HeadDn 270'l-)

ID RPV Vessel Scanner Package Configuration for Vertical Welds Scans

o

"'C <

I r-1 N

I w w

00 n

HITACHI Pilgrim Unit 1 Reference Drawings ENTER.GY *PILGRIM

~,,..,

~*,_. ____._.....;;............................ -.......... ~

  • F-----------------~*~..._--._.......jr ~

<0.

' *I

~.

1--~----~

... ~.--------"' r"--------~,-1:-

. --~--."""1

"';,,.,,,.,_~~--::w~r,..-~~-..:*~ t~

JU:lllUliollll*l*t~.. *----.

I

,~ - -

I I *

~

vu

~ -

.*=-..,.. =.,u.--.._,,..-,...* -..,_..,,..-..,1.,..-...,_,-.....,.,,.-....,-...,

,_.. I.....,

~

  • I.....__-:".*

.... : _.;I-**

iioi.:m I

U..01 ENTERGY

  • PILG VESSE:l. I() OCLOtl r SCALE* NONE Vessel Location Map DWG. PLG*lOIS*Ol AEV.O

TACH

-Co.rwlC4W

  • Pilgrim Unit 1 Reference Drawings lar'w'9'._,,.

..,1.Q_(J'

-.;r -

I I

..... [

d'~t it.

6110" Jlt'...

OOERGV - Pol.GRIM StlCLL coo~ 1 wrLO l *l Cross Section of Achieved Coverage "A" t1NG. PLG*<D 5--06 REV 0

a

"'tJ <

I r-1 I\\)

I

(...)

(..)

co C1

Pilgrim Unit 1

.Reference Drawings "u

oo I"") -

I"")

I N

Scanned Patches Facing Down

a

""C r

I

~

I

(,.)

w co n

~

SP2000 RPV Examination (I!'~-., HITACHI

~~

Coverage Calculation Sheet Pilgrim Unit 1-RFO 20 Weld RPV-L-2-339A (Shell Course 3) cooe CROSS.SECTIONAL AREA TOT Al CODE COVERAGE Percerit W d l.e'ngth =

111.90 A.equfred &om Areo Sc:onned of Area W Id Length El<<lm Volume

  • 52.40 ArlCI SQ, In.

Automated

.Automa~

Alltomoted 7<Y' li*Scon CWIS4 NSI A

7.1 1.?

0.0 26.90 70.. T*Scon CCWIS4 NSI A

7.7 6.0 0.1 26.90 45" T-ScanlS6 FVJ A

44.7 31.2 0.6 26.90 70" P*Scan UP ($11 NS}

A 1.1 I

6.8 0.1 26.90 I

10* P*Scon ON 154 N~

A 7.1 0.9 0.0 26.90 45" P*Scan ts6 fVl A

44.1 39.5 0,8 i6.90 w*T-Scon CW ts'- NSI 70" T*Scon CCW IS4 NSI 45" T-Scon4S6 FVI 70" P*Scan UP [S4 NS1 70* P*Scon ON 154 !llSl r

45* P..Scon ts6 fVl 70'"T-Scon CWts4 NS!

I 70" 'f*SCan CCW 154 NSI I

45* T*Soon!S6 FVI 7(1" P-Scan UP IS4 NS]

10* P-Scan ON *~ l"SI 45* P*Scan ts6 fVl

% Total Composite Covernge...

lComments:

A*.Automateod scanning wcs restricted due to proJ<imfty of Guide Rod. Feedwoh!r End Brod<el ond lntemol core Spray piping.

1 Scanner tM!CJd facing down.

I I

Note - Roooding methods m~ affect ookuloted volues. FV-full 11olume, NS-~ear Surface. Weld lellQthin inches.

Percent Automcrted 02%

0.7%

7.2%

0.8%

0.1%

9.1%

18.0%

.... ow*-

o.,,

I r I

~

I

(.,.)

(.,.)

)>

HITACHI Held~

90'(+)

270"(-)

Pilgrim Unit 1 Reference Drawings Viewed from Back Side of Package

-1v-2#'-

CH3

<::ti 7 CH4 s B-s

~ G lil l OHS CH9 CHB

  • I B 8 s a CH2 CHS CH1 Scanner Stde TWKIR-lheUT..-.,~

Sclnnet51111l t

O"(+J Zli' I

+0'6' i

~

z..-!

~On 270'(-)

90"(+}

180'(-)

ID RPV Vessel Scanner Package Configuration for Vertical Weds Scans

a "ti <

I I

I I\\)

I

(..)

(..)

<O >

HITACHI Pilgrim Unit 1 Reference Drawings ENTERGV ~ PILGRIM

.__._...... _..~~.....__.._........ ~_.__._........ __,.__....__._~~.__............... ~

................ -...~~

I

(. I ("

1:

0 i'Q)

I r

~

I IW' ll ' :J" I..

~

I I

~

~.

~

~

~

\\

  • Hr I

~

~11~

!M 111~

rll IM~

~\\ii

~ 11 ~

~....

~111~

~

~

-~

. J iii I

~

' ~

l.i i:;

~

,, 1 1-',-

/

~ ~ j J

1 -

~

" - - - - - - ---- ( -

4 I -

~ =

~ -- --.... -

I -lldKb!iO=,= =

l.o loo... --.

II I

II -

J

~*

_/

ttUM.1.111111:tirtl.!P11 Ci£ HfiACttl EN1ERGI'

  • Pll..GRl'1 VESSEL ID ROLLOUT SCAt~ NONE Vessel Location Map lll.>fi 1\\Jt&I DWG. PU;'..i*201S-Ol R.rv a
0 "ti I

I I

~

I

(.,.)

w (0 >

e HITACHI Pilgrim Unit 1 Reference Drawings 587. 7" 509.9" 0

0 0

300° 398.0

3-339 Scanned Patches Facing Down l

  • ~

SP2000 RPV Examination

'~~

HITACHI Coverage Calculation Sheet Pilgrim Unit 1-RFO 20 Weld RPV-L-2-3398 [Shell Course 3t CODE CROSS-SECTIQ~Al AREA TOTAt. CODE COVERAGE Percent Weld L n9th*

111.90 Required EJcom Area S(anned ofAfeo W.Jd I. ngth E)cam Volume =

52.40 Ateo 5<1. in.

Automated Auto mat.cl Automotitd 70"T-Scon CWl5'1 NSI A

7.7 7.7 O.l 45.50 70" 1-Si;;on CON IS4 NSI A

7.7 7,7 0.1 45.SO 45* T *Scan [S6 FV)

A 4A.7 44.7 0.9 45.50 70- P-Sc:on UP {$4 NSI A

7.7 1.7 0,1 4S.50 70" P-Scof'I ON IS4 NSJ A

7.7 7.7 0.1 4S.SO 45" P*Scari 156 FVJ A

44.7

~.7 0.9 45.50 70" T ~scon cw 154 NSJ B

7.7 7.7 0.1 29.00 70" T-Sam CON IS4 NSI 13 7.7 1,7 0.1 29.00 45" T-Scan CS6 FV1 B

44.7 44.7 0.9 29.00 70" P-Scon UP (54 NSI B

7.7 1.7 O.l 29.00 70" P-Scon ON IS4 NS2 B

7.7 7.7 O.l 29.00 45* P-Scan (56 FVJ B

44.7 6.4.7 0.9 l~.00 70" T-Scon CW CS4 NSI c

7.7 7,J 0.1 3.00 70' T *Sean CON ISli NSI c

7.7 3.2 0.0 J,00 llS" T-SCon [SS FV) c 44.7 39.4 o.a 3.00 70" P-Scori UP l54 NSJ c

7.7 2.5 0.0 3.00 70" P-Si;;on ON iS4 NSI c

7.7 7,1 0.1 3.00

. 45* P-Scon !SOVJ c

44.7 44.7 0.9 3.00

% Totol Composite Ccwefage

  • COmments:

A -Automated scanning was not r@~rkt.ed Seonner heod toeing down.

B - Automated sconnfn9 wos nol restric:led. scanner he<id focing up.

C - Aulomoted sconnif'lg wos r"'strided. Specimen brod<el Scaooer head facing up.

Note

  • ROl.WldintJ methods mew affect colculatecl values. FV-Full volume. NS-:Neor Surfrxe. wetcl lel"IQth in 1rw:hes.

P9rc:ent Avtomoted 1.S'K l.S'Jl6 17.3%

1.5%

1.5%

17.3%

1.09' 1.0%

11.1%

1.09' 1.0%

11.1%

0,.l96 0.0%

1.09' 0.0%

0.1%

1.19' 69.0%

..,,C),..,~

ti

'"C <

I r I

N I

(,.)

(..,)

c.o CJ

HITACHI HltadUp SIO'(+I 180'(**14--+---0'(+)

270'(-)

Pilgrim Unit 1 Reference Drawings VieNed from Back Side of Package

IUT------

&:anA>la

-2.9"---:z.!l"-

CH6 CH9 CH2 Ctl5 Scanner Side CH fl I

~

-0 CH1 O"( +)

VI'

~

>(k5' i t ~

HeldOn 270'(-}

oo*("'I HIO"j.)

ID RPV Vessel Scanner Package Configuration for Vertical We ds Scans

ti

"'tJ <

I r I

~

I co OJ

HITACHI l

1

!\\_.

~ -

j -

GE HfTACHJ

~

I

~

Iii

~

~~ ~

  • *~ *v

~

~

II 0

U*'

~

I ur--i-Pilgrim Unit 1 Reference Drawings ENTERGY - PILGRIM 1

0

)

I I

~

~

~

~

J

~ I I

  • v.

IM "

1\\1

[M*

k'

~-

'"ill

~

~.

~ ~

~

/

1 "!

~ -... - - '-

i -

I It _,.

I I

~

~ _/

,,,uu..nt11C1~*f'l:lll-f......

~

fl......

ENfERG't'

  • PrLG IM VESSEL ID ROLLOUT SC:ALE t..oONE Vessel Location Map
tJ "ti <

I r I

N I

(..)

(..)

(0 CJ O\\YG PLG-2015--01 R(V 0

HITACHI

--JCC"I

,,~,.,

.. ~. -

... 1~"'

.., ___ *1114.,

.. Pkwl

  • 7.1"1"'

MHGJ*

.u1 541" SiP.s--.... 11.4...

~wdCUMIMtal

  • Zl.\\WSnltn

'nvf A.imdoo. I.al..... n1......,

._......,,Cad t

  • a nJ'S nc.tw* llW' **OI*

GC* m.!l.OINUO.£AIU.NCRGV

-100" r ---

1 I

Pilgrim Unit 1 Reference Drawings

.1110-

-°""""~.;:- - - - - - - - - -

! 'll\\Jlt;,V P. CiJllM Cross Section of Achieved Coverage "A'"

~

FtG zon 11 R£V 0

e HITACHI Pilgrim Unit 1 Reference Drawings

  • IOlr
  • t!o.:. _____ ----.:;;.';'9-:;:.,... - ----- --- --,

I g tij~~ ~:.:

fOOl 0

00

~.,J, 1,H*

(Ht o; J

~

"""'""""tc!N

~*C..,..-*115qft

-5~*-*.,.,,Sq..

SiTS<tft~*lll<q.

S-O.kJi'l""'-*11511."'

1iT~~*.U..1$ql"L 16.. !lan-.!*... 7~11\\

WUiid~dl "°"°'"' 11...,iu.t..

M~.o::..91wetlt7S~

-/Cr:Mt... V.CToHIUo4111n<M4 JOol

~

S<;lllln..-Sldt I

~

II.

71'3..

I g ~:: ~::

fOOl 0

00

~ A

&i (Ht o;*

~~

1~**l t.M1 (HI 5';Qn

-c..r..iew GE-tUTAOfl NUC:lEM rnEAGI' t:N1 Ef'G\\I

  • Pll.GRlM Slifil COURSE l '\\llElD l-ll'lS

$CALF-NONF tMIG A.C*i!Ol5-ll Cross Section of Achieved Coverage "Bn llfY 0

a

""C <

I r-1 N

I

(,,)

w

<O CD

"'O r

)>

Ol CD

~

co ~ Ol CD CD 0

J

~ !" 3

_,.. CD 0

0) :::i (J'1 0 CXl (.U
0).......

0

HITACHI Pilgrim Unit 1 Reference Drawings

~C..:UVIC'C"'-"

lQ(T,---- ;..

I I

I CT;} ro ~

~ [J ~

~*

~,

~* *

~

Ji50l

~

Sm*rw< 5'3e

  • r

~

OIL

~

+lt

._,..,.-y-- - - - -.

I

~

~

~""

~'T~

.,ii*s ro~ I o:>

l::J

~'

~*

~*

  • Q ~ {;]

~,;.

LH\\

un

~S<lo

--~ J! I

"\\

~l.W1'1*~*11\\qtt

~,(,qt,,~....,.~....

s..r1c...,...,_.i.s.."'

S.:,;..ktJrt~*iJ-.r._

!br.~........i.... 11.q"'

2Jt.?.ca1~*4'1Sqln..

~~lZ.l1l::r9t-.. 1;vt;f1~..-.

IJlnlul(A...--Pll.. l"'~"""

Ntmnda.:.1.. :un!~ """"'

ftln_f~~lT*l'JJf66U'J.-~

Cl£* ttil'il<CJ4 NUCLEAA iM'ilGv El\\ TElb..";v

  • mGR1 5liElt COORS[ 1 \\VUO l*Jl9ll
l*G.u6illll,W

~*

1K.Al£ NQNc OWG PU"r201S*H Cross Section of Achieved Coverage "C 11

  • Umited RiV &
a "C

~

r

  • N I "' "'

<O CJJ iJ r

)>

tll (I) co ::::: tll (I)

(I)

(")

., ::J"

<5)rv3

--" (I) 0

0) ::::i U1 0 o:> (;.)
0) -0

HITACHI 3-339A

- 509.9 11 3-3398 398.0" Pilgrim Unit 1 Reference Drawings 477'-' -

~HU u

116° Scanned Patches Facing Down

a

""D <

I r I N I (N (N

co m

HITACHI 3-339A 509.9" D

3-3398 398.0 11 Pilgrim Unit 1 Reference Drawings 116° 0

Scanned Patches FacillQ Up IT

a

""C <

I r-1

~

I w w

(0 CJ

HITACHI 3-339A 509.9" 3-3398 398.0 11 Pilgrim Unit 1 Reference Drawings 116° Scanned Patches Facing Up - Limited 352.6'

c

"'C <

I j" I

N I w w

(0 OJ

~-

HITACHI SPZOOO RPV Examination Cover:age Calculation Sheet

  • ~

Pilgrim Unit 1-RFC 20 Weld RPV-L-2-339C (Shell Course 3)

CODE CROSS-SEC:rJONAL AREA TOTAi. CODE COVERAGE Percent Weld t..ngth =

111.90 Required EJcom Area Sc:anned of Area Weld 1.ength

&com Volume"'

S.ZM>

Area Sa. In.

Automated A"tomcrted Aut.amat&d 70-T-Scan CWl5'1 NSI A

1.7

... 7.7 0.1 32.90 70-T-Scon*CCWl54 NSI A

7.7 1.7 0.1 J2,90 45" T-ScaolS6 FVl A

44.7 44.7 0.9 32.90 7r:r P*Scan UP ts4 NS}

A 7.7 7.7 O.l 32.90 70" P-Scon ON 154 NSl A

7.7

... 7.7 0.1

3i,90 45* P*Scan ~o fVJ A

44.7 44.7 0..9 32.90 70-T-Scan CWCS4 NSI 8

7.7 7.7 0.1 49.00 10* T-Scon ccwt5.c. NSI a

7.7 7.7 a.1 49.00 45"T-SC<lli IS6 FVI

--9 -*---

44.7 44.7 0.9 49.00 70'" P*Scan UP IS4 NSI B

7.7 7.7 0.1 49.00 1r:r P-Scan ON 154 NSJ B

7,7 7.7 0.1 49.00 45"-P*Scan i;>o rv1 B

44.7 44.7 0.9 49.00

  • ~ -

10* T *Scm CW IS4 NSl 10* T-SCon CCW IS4 N~

45* T *Scon 156 fVJ 70° P.Scan UPtS411151 70"' P-SCon 0111 (54 NSl 45* P.!)C_o.n 1sfi FVI.

% Total Composite Coveroge =

Comments:

A* Atitomoted SCtlnnlng wos restricted due ta the feedwoter sporger. Sconner head fating ifown.

B - Auto1'11(1ted scanning was restricted due to the cote spray piping. Samn~r !lead facing ~-

Nole - R<:Kindiog methods may affect ailclJol.l!d valll@S. FV*Full volvrne. f\\IS.-Neo.r Surfoce. Weld length ln inches.

P9l"Cllnt Automated L1%

1.1%

12.5%

1.1%

1.1%

lZ.5%

L69' 1.6%

18.7%

1.6%

1.6%

lB.r'ltl 73.2%

"*" 0 flt.If~

o

""C <

I r I

N I

(.,.)

(.,.)

(0

()

HITACHI HesdUp 90*( )

t!IO"h O"(+)

270(-)

M" Ge-1.-T.ACHI ~

EllERG'f I

Pilgrim Unit 1 Reference Drawings Vie.Ned from Back Side of Package 1l.l1' 5QllAld6

-'l.JT 1.fl'-

/

CH3 CH7 CH4 s B s

~ G l:L)

CHG CH9 CH8 '

I

[ ***~ 8 a OH2 CHS CH1 Scanner Side T ni R.., the UT'~

aJllllOdJ;Q.

Scel.wSld9 HNcSDn 210*(-)

t O"(*)

  • 1ao*I-)

~"' I 00"(+)

~1 I i 2.4" l ENTERGY* PILGM.I I Jt>RPll $CAN p~ I 5CAl..E. HO'fE I Oll.G. PLG.2G1 s.o;i I EV 0 ID RPV Vessel Scanner Package Configuration for Vertical Welds Scans

o "ti I r-1 I\\)

I w w

(0

(")

TACH I-'

GE MITP.C:HI (Q) 0.1 1'

~

I

~

~ *~ ~ ~

~ruH

~

~.

I I

~

! ~ _I

~' -

a I

Pilgrim Unit 1 Reference Drawings ENTERGY - PILGRIM 0

~

~

t H" I"

M

=

l

!11 4

  • 111~

~1i1 ru~

~l\\tH

~ H-

~

~

I

~

~

~-

., _r/

'=.,

..:. - -..... I- - - I-I*

~

=

"'=... -... - --

11.,_ '

I

    • ~

~

E lfl E GV PILGllJM VESSEL ID ROt OUT Vessel Location Map I

I I'll

~ -,

.;r

"*'-;;IU,lJ't*rdllo CJWG. Pl.G-21U 5-01 REV 0

a

""C <

I r-1 N

I c..>

c..>

(g

()

HITACHI Pilgrim Unit 1 Reference Drawings

-1(10"

+IDO" r - - - - - - - - - - --*** -.;.- - - - - - - - - - -,

I I

I

,-~--;I~~~~,

Sc~

SKI*

5,gn~ S1q t.Ht t

~'

DI'\\

UH

~~~

~~~

~~~

~~~o*,

61 ~ a

[:] -LIQJ a

~*

~t

~i

~*

~,

~s

~-

~1*fa,.am'-":&.:nt*U. P5iqlrt

-""'*"-'~*11$q.,

u.... 'lir-~1ir.tillfWCl**1'iill KT-~A<t-*M.11<1 K**kwn..,_*.. lk.lfl.

SHE~~ C'OUf<SE 3 WRD Z*JJ C Cross Section of AcMeved Coverage "A"

c

"'Cl <

I j" I I\\)

I

(,,)

(,,)

co

("')

HITACHI Pilgrim Unit 1 Reference Drawings I

1 B9~

~*

~*

~*

~~~

(HJ fK~

I

~*ban~

.. 11Sq In.

""""""'.........,,_ **,,'lo!..

Sill*tcmM:fwwd*17Sq kl.

.....__*ITklft K *ka"ll...,..,.....*MIJ' 9\\.

i...-.-*... 1k"1.

1.,..

-tlAimoe*tloa-l.as.uM*Lli~*

-lllld**rotn-

_,"""111~,.,. lu.us-..

GE* HIT"'CHI lUCLEAA EtlfJIGV

~armer de ft.

<Y*'

m*...

t SHW. COURSE l wao l*ll9C I

© rp@

r;J ~ r;J

~

00 Oii I

~~~

~~

~i

~*

'i<:anr<e1 Side SCALI:. r tfti DWG. Pl.G-2015 12 Cross Section of Achieved Coverage "B"

o

'"C <

I r I

N I

CD n

HITACHI 0

Pilgrim Unit 1 Reference Drawings u

0\\

M M

I N

Scanned Patches Facing Down

0

"'C <

I,...

I "'

I

(..)

(..)

co n

TACH D

Pilgrim Unit 1 Reference Drawings I

I 462.4" 236° Scanned Patches Facing Up

o

""D <

I r I !\\)

I w w

CD

(')

--\\...

8 HITACHI Manual RPV Examination Coverage Calculation Sheet Pilgrim Dollar Plate Weld - RPV-BH-Cl CODE CROSS.SECTIONAL AREA TOTAL CODE COVERAGE Percent Weld Length ;;

596.0 Required Exam Area Scanned of Area Weld J.ength Exam Volume=

29.S Area So.in.

Manual Achieved Achieved 60Q T-Scon UP (S4 UCl A

3.6 2.3 3.9%

588.0 60° T-Scon ON 154 UC)

A 3.6 0.0 0.0%

588.0

. 60° T-Scon (56 FV)

A 25.9 23.3 79.0%

588.0 60° P-Scan CW (54 UC)

A 3.6 3.6 6.1%

588.0 60° P-Scan CON (54 UC)

A 3.6 3.6 6.1%

588.0 60° P-Scan 156 FVI A

25.9 12.2 41.4%

588.0 60° T-5con UP (54 UC)

B 3.6 2.1 3.6%

8.0 60° T-Scon ON 154 UC) 6 3.6 0.0 0.0%

8.0 60° T-Scan (56 FVl B

25.9 21.5 72.9%

8.0 60° P-5can CW (54 UC) 8 3.6

.3.6 6.1%

8.0 60° P-Scon CON (54 UC)

B 3.6 3.6 6.1%

8.0 bu-P-scan t56 FVI B

25.9 12.2 41.4%

8.0 60° T-Scon UP IS4 UC) 60°T-Scon ON 154 UC) 60° T-Scon 156 FVl 60° P-Scon tw {S4 UC) 60° P-Scon CON (54 UC) 60° P-Scan 156 FVJ

% Total Composite Coverage...

Comments:

A - Manual scanning was restricted due to the proximity of the vessel support skirt.

B - Manual scanning was limited due to the proximity of the vessel support skirt and thermocouples.

Note - Roundinq methods mov affect calculated values. UC-Underclad. FV-Full volume, NS-Near Surface. Weld lenath in inches.

Percent Achieved 1.9%

0.0%

39.0%

3.0%

3.0%

20.4%

0.0%

0.0%

0.5%

0.0%

0.0%

0.3%

68.2%

Rov.Q 9/?mfl

o.,,

I m

c n

HITACHI Pilgrim RPV-BH-1 Weld 61:1'5" Eia-< "°*"1le

  • l 6 Sc;.

60"56 E><<'.r> Girne. zss ~

6D'!"S4 ~

~~. 2.J Ill )4.11\\.

OO'TS6flllll'l~~*U3S;j. n fiO"> 5" £>cr..W.me ~

  • 3 6 f 3.6 r.:i 1n 60"*S6

---*1215'\\

Area not scanned in either the Transverse or Parallel directions looking for axial and clrc flaws.

RPVScan Plan Exam natton Seo um1ts Area not scanned in the parallel to weld direction looking for a><ial flaws Area not covered due to thermocoupl e interferences, noted on previous examination report and PRR-42 for Interval 3

-0 r

t>

ro CD......

co...... ro CD CD

()

-. ::J'"

<Jl N 3 co.

--" CD 8,~ :::::l

<Jl 0 co w (J)......

0 to Letter 2.16.036 Request for Relief-PNPS-151-002 (34 Pages) to Letter 2.16.036 Page 1 of 34 Components I Numbers:

Code Classes:

References:

REQUEST FOR RELIEF - PNPS-ISl-002 Reactor Vessel Nozzle Welds I See Attachment 6 Table 2-1 for component numbers American Society of Mechanical Engineers (ASME) Code Class 1 ASME Section XI 1998 Edition w/ 2000 Addenda, Table IW8-2500-1, ASME Section XI 2001 Edition w/ 2003 Addenda, Table IW8-2500-1, Code Case N-460 Examination Category:

8-D Item Number(s) 83.90

==

Description:==

Full Penetration Welded Nozzles in Vessels - Inspection Program 8 Unit/ Inspection Pilgrim Nuclear Power Station (PNPS) I Fourth (4th) 10-Year Interval Interval Applicability:

I.

CODE REQUIREMENTS ASME Section XI, Table IW8-2500-1, Examination Category 8-D, "Full Penetration Welded Nozzles in Vessels - Inspection Program 8":

Item 83.90 requires a volumetric examination of Reactor Vessel Nozzle-to-Vessel Weld volume, as depicted in Figures IW8-2500-7(a) through (d), as applicable.

II.

RELIEF REQUEST Pursuant to 10 CFR 50.55a(g)(6)(i), Entergy Nuclear Operations, Inc. (Entergy) requests relief from achieving the Code-required coverage when performing volumetric examinations of the components identified in Attachment 6 Table 2-1.

Ill.

BASIS FOR RELIEF During ultrasonic examination of the non-Appendix VIII Pressurizer Nozzle-to-Vessel welds listed in Attachment 6 Table 2-1, greater than 90% coverage of the required examination volume could not be obtained. Examinations were performed utilizing Entergy approved procedures specific to ferretic vessels greater than 2 inches in thickness.

Due to the geometric configuration of the components, effective volumetric examination could only be performed from the shell side of the welds. Theo*, 45°, 60° and 70" beam angles used in the axial and circumferential direction were not able to achieve greater to Letter 2.16.036 Page 2 of 34 than 90% code required volume as required by Code Case N-460. See Attachment 6 Table 2-1 for additional information.

Radiography is not practical on these types of nozzle-to-vessel weld configurations, which prevent placement of the film and exposure source. To effectively perform any significant additional Code allowable ultrasonic examinations, modification and/or replacement of the component would be required. The examinations performed on the subject items in addition to the examination of other vessel welds contained in the lnservice Inspection program would detect generic degradation, if it existed, therefore demonstrating an acceptable level of integrity.

IV.

PROPOSED ALTERNATIVE EXAMINATIONS No alternative testing is proposed at this time. Entergy has examined these welds to the extent practical and will continue to perform pressure testing on the subject components as required by the Code.

V.

CONCLUSION 10 CFR 50.55a(g)(6)(i) states:

The Commission will evaluate determinations under paragraph (g)(5) of this section that Code requirements are impractical. The Commission may grant such relief and may impose such alternative requirements as it determines is authorized by law and will not endanger life or property or the common defense and security and is otherwise in the public interest giving due consideration to the burden upon the licensee that could result if the requirements were imposed on the facility.

Entergy believes that it is impractical to obtain greater examination coverage on these welds. To effectively obtain significant additional coverage would necessitate modification and/or replacement of the component. The examinations performed on the subject welds, in addition to the examination of similar welds contained in the program, would detect generic degradation, if it existed, demonstrating an acceptable level of integrity. Entergy requests the proposed relief be authorized pursuant to 10 CFR 50.55a(g)(6)(i).

~ ;( )

HITACHI Reactor Pressure Vessel Coverage Calculation Sheet

~

Pilgrim Unit-1 RF0-17 Weld RPV-NlA-NV CODE CROSS-SECTIONAL AREA TOTAl CODE COVERAGE Required Exam Percent Weld Length =

360 Area sq. in.

Area Scanned ofAreo Weld Length Percent

!:Mam Volume =

29.7 IRS-Scan LKCW 1541 A

4.1 4.1 13.8%

360 3.5%

IRS*Scon LKCCW IS4}

A 4.1 4.1 13.8%

360 3.5%

60' P-Scon IS61 A

ZS.6 ts 5.1%

360 2.5%

60° T-Scon 1541 A

4.1 4.1 13.8%

360 6.9%

60' T *Scan 1561 A

25.6 16.3 54.9%

360 27.4%

% Total Composite Coverage =

43.8%

Comments A* Scanned oreo 360'. Scanning limited due to nozzle configuration.

Note

  • Rounding methods moy affect r-1llculoted values. 54-Supplement 4 underclod volume, 56-Supplement 6 volume. Weld lenoth in deorees
  • 1
  • 0 9/l)/Ol
ti "ti <

I z

~

z <

to Letter 2.16.036 Page 4 of 34 RPV-N1A-NV Area not scanned in the parallel to weld direction looking for axial flaws Pilgrim Nl Nozzle - Recirculation Outlet 6(J~S4&.1R$(J<OmValume=4, 1 Sq. In 60" SG EXam Volume= 25.6 Sq. tn.

6(1° S4 T-Scon Exam Volume.. 4.1 Sq. In 60" S6 T-Scon Exam Volume- = 1.6-3 5q. tn.

IRS P-Scan Exam Volume,. 4.1 Sq_ In 60" 56 P-Scoo Exom Volime = 1-S Sq. In.

15.r W'l-Scon I

Area not scanned in either the Transverse or Parallel directions looking for axial and circ flaws.

~ ;

HITACHI Reactor Pressure Vessel Coverage Calculation Sheet Pilgrim Unit-1 RF0-17 Weld RPV-N2A-NV CODE CROSS-SECTIONAL AREA TOTAL CODE COVERAGE Required Exam Percent Weld length =

360 Area sq. In.

Area Scanned of Area Weld Length Percent Exam Volume

  • 36.2 IRS-Scon LKCW 1541 A

4.0 4.0 11.0%

360 2.8%

IRS-Scon lKCCW 1541 A

4.0 4.0 ll.0%

360 2.8%

60" P-Scan 1561 A

32.2 3.3 9.1%

360 4.6%

60* T -Seen (541 A

4.0 4.0 11.0%

360 5.5%

60" T-Scon 1561 A

32.2 13.0 35.9%

360 18.0%

% Total Composite Coverage..

33.6%

Comments A* Scanned area 360". Scanning limited due to nozzle configuration.

Note - Rounding rnetbeds..moy affect calculated values. S4*Suoolement 4 underclod volume. 56-Suppjement 6 volume. Weld lenoth in degree~

~

I l

I

... 0 9/ZJ/n~

o

-a <

I z I\\)

~

z <

to Letter 2.16.036 Page 6 of 34 Area not scanned In the parallel to weld direction looking for axial flaws RPV-N2A-NV Pilgrim N2 Nozzle - Recirculation Inlet 60' S4 & IRS fxom Volume" 4.0 Sq. In 60' 56 fxom Volume" 32.2 Sq. In 60' 54 T-Scon E><om Volume~ 4.0 Sq. In 60' 56 T-Scon £lCom Volume* 13.0 Sq. In.

IRS P*Scon Ellom Volume" 4.0 Sq. In 60' 56 P*Scon EKOm Volume" 3.3 Sq. In.

!SY 60' T*Sc-cm I

Area not scanned in either the Transverse or Parallel directions looking for axial and

/

. Reactor Pressure Vessel Coverage HITACHI Calculation Sheet Pilgrim Unit-1 RF0-17 Weld RPV-N28-NV CODE CROSS-SECTIONAL AREA TOTAL CODE COVERAGE Required Eleam Percent Weld Length

  • 360 Area sq. In.

Area Scanned of Area Weld Length Percent Exam Volume"'

36.2 IRS-Scan LKCW IS41 A

4.0 4.0 11.0%

360 2.8%

IRS-Scan LKCCW (541 A

4.0 4.0 11.0%

360 2.8%

60" P-Scon 1561 A

32.2 3.3 9.1%

360 4.6%

60* T-5con (541 A

4.0 4.0 11.0%

360 S.5%

WT-Scan 1561 A

32.2 13.0 35.9%

360 18.0%

% Total Composite Coverage =

33.6%

Comments A* Scanned area 360'. Scanning limited due to nozzle configuration.

Note

  • Roundina metbQds may affect colculated values. 54-Supplement 4 underclod volume, 56-Supplement 6 volume. Weld length in degree~

c::::::

- "/

l. -

J&J,_ 4

.f_ "'

... 0 flll!Ol

0 "tJ <

I z I\\)

CD I z <

to Letter 2.16.036 Page 8 of 34 Area not scanned in the parallel to weld direction looking for axial flaws RPV-N2B-NV Pilgrim N2 Nozzle - Recirculation Inlet 60° 54 & IRS Exam Volume.. 4.0 Sq. In 60' S6 Exam Volume= 32.2 Sq. In.

60" S4 T-Scon Exam Volume= 4.0 Sq. In 60° S6 T-Scon Exam Volume"' 13.0 Sq. In.

IRS P-Scon Elcom Volume = 4.0 Sq. In 60' 56 P-Scon Exam Volume = 3.3 Sq. In.

t-------1

/Vea not SC<Jnned in either the Transverse or Parallel directions looking for axial and

Reactor Pressure Vessel Coverage

m. HITACHI Calculation Sheet Pilgrim Unit-1 RF0-17 Weld RPV*N2C-NV CODE CROSS-SECTIONAL AREA TOTAL CODE COVERAGE Required Exam Percent Weld Length
  • 360 Area sq. In.

Area Scanned of Area Weld Length Percent EHomVolume*

36.2 IRS-Scan LKCW IS41 A

4.0 4.0 110%

360 2.8%

IRS-Scan LKCCW IS41 A

4.0 4.0 110%

360 2.8%

60" P-Scon lS61 A

32.2 3.3 9.1%

360 4.6%

60" T-Scan (541 A

4.0 4.0 11.0%

360 5.5%

bU" T-Scan !S61 A

32.2 13.0 35.9%

JOU 18.0%

% Total Composite Coverage=

33.6%

Comments A - Scanned area 360°. Scanning limited due to nozzle configuration.

Note - Roundina methods may offec:Lc.alculoted values. 54-Supptement 4 underclad volume. 56-Supplement 6 volume. Weld lenath in degrees

/_.)' <:*

J < 'l l

- /

    • 0 !lllll<ll
o

-a <

I z N

(') z to Letter 2.16.036 Page 10 of 34 l

en

51.

Area not scanned in the parallel to weld direction looking for axial flaws RPV-N2C-NV Pilgrim NZ Nozzle - Recirculation Inlet 60° S4 & IRS Exam Volume = 4.0 Sq. In 60° S6 Exam Volume.. 32.2 Sq. In.

60" S4 T-Scan Exam Volume = 4.0 Sq. In 60" S6 T-Scan Exam Volume

  • 13.0 Sq. In.

IRS P-Scan Exam Volume 2 4.0 Sq. In 60° S6 P-Scon Exam Volume= 3.3 Sq. tn.

Area not scanned in either the Transverse or Parallel directions looking for axial and circ flaws.

e GE Energy* Nuclear Reactor Pressure Vessel Coverage Calculation Sheet Pilgrim Unit-1, 2007 RPV-N3A-NV CODE CROSS-SECTIONAL AREA TOTAL CODE COVERAGE Weld Length =

360.

Required Exam Percent Exam Volume=

27.6 Area Sa. In.

Area Scanned of Area Weld Length 60° T-Scan l $4 A*

4.5 4.5 16.3%

360 60° T*Scan I 56 A

23.1 9.1 33.0%

360 IRS P*Scan S4 A

4.5 4.5 16.3%

360 S0° P*Scan ($6)

A 23.1 2.8 10.1%

360 S0° T*Scan1 S4 so* T*Scan SS IRS P*Scan $4 60" P*Scan (SS) so* T -Scan S4 so* T-Scan ss IRS P-Scan S4 60° P-Scan (S6 60° T-Scan lS4 so* T *Scan* 56 IRS P-Scan 54 so* P*Scan (86)

% Total Composite Coverage =

Comments:

Examination volume in accordance with Code Case N*613-1.

A* - Single side access, 100% credit of the achieved Supplement 4 T-scan volume claimed iaw. 1 OCFFl50.55a.

Note - Rounding methods may affect calculated values. Weld lenoth in deQrees.

/c;v.,. <e.../ i ~ c;, _____ 'l x

).;I _,,,.vh,_/...,...,.

Percent 8.2%

16.5%

8.2"k 5.1%

37.9%

flev 0 9123.<liS

0

-a < ' z

(...)

~

z <

to Letter 2.16.036 Page 12 of 34 RPV-N3A-NV Area not scanned in the parallel to weld direction looking for axial flaws 50*p Pilgrim Weld N3 Main Steam 60° FV Exam Volume

  • 23. 1 Sq. In.

so* (Inner 15% n Exam Ve>Une = <4.5 Sq. In.

60" FV T-5can achieved,. 9.1 Sq. In.

60" (Inner 1s%n T-Scan achieved= 4.5 Sq. In.

60" FV P-Scan ac:tlieved

  • 2.8 Sq. In.

so* (Inner 1s%n IR & P-Scan achieved= 4.5 Sq. In.

Exam vok.Jme in accordane& with Code Case N-613-1.

60"T I

Area not scanned in either the Transverse or Parallel directions looking for a>tlal and clrc flaws.

GE E""'fly - Nuclear Reactor Pressure Vessel Coverage Calculation Sheet Pilgrim Unit-1, 2007 RPV-N3B-NV CODE CROSS-SECTIONAL AREA TOTAL CODE COVERAGE Weld Length = 360.

Required Exam Percent Exam Volume = 27.6 Area SQ. In.

Area Scanned of Area Weld Length 60° T-Scan (S4l A

  • 4.5 4.5 16.3%

360 60° T*Scan CS61 A

23.1 9.1 33.0%

360 IRS P-Scan S4 A

4.5 4.5 16.3%

360 so* P*Scan CS6)

A 23.1 2.8 10.1%

360 60° T -Scan <S4 60° T-Scan IS6l IRS P-Scan CS4\\

60° P-Scan (S6l 60° T*Scan S4l 60° T-Scan S6 IRS P-Scan S4 so* P*Scan S6 60° T-Scan CS4l so* T-Scan S6 IRS P-Scan S4 60° P*Scan (S6)

% Total Composite Coverage =

Comments:

Examination volume in accordance with Code Case N-613-1.

A'

  • Single side access, 100% credit of the achieved Supplement 4 T-scan volume claimed law. 10CFRS0.55a.

Note - Rounding methods may affect calculated~Wetd length in decrees.

/6.... u../ ~ -~,.,s;

' / __x__ ),,._,,,,

v/.... /......,.

Percent 8.2%

16.5%

8.2%

5.1%

37.9%

Rf\\1091:1)115

o.,,

I z

(,.)

OJ I z <

to Letter 2.16.036 Page 14 of 34 Area not scanned In the parallel to weld direction looking for axial flaws RPV-N3B-NV Pilgrim Weld N3 Main Steam 60" FV Exam Volume "23.1 Sq. In.

60' (Inner 15% T) Exam Volume" 4.5 Sq. In.

60' FV T-5can actlleved " 9.1 Sq. In.

60' (Inner 15%T) T-Scan achieved "4.5 Sq. In.

60" FV P*Salo achieved : 2.8 Sq. In.

60' (loner 15%T) IR & P-Scan achieved= 4.5 Sq. In.

Exam volurne In acoonlance wi1h Code Case N-613-1.

60'T I

Area nol scanned in either the Transverse or Parallel directions looking for axial and

GE Energy* Nuclear Reactor Pressure Vessel Coverage Calculation Sheet Pilgrim Unit-1, 2007 RPV-N3C-NV CODE CROSS-SECTIONAL AREA TOTAL CODE COVERAGE Weld Length :: 360.

Required Exam Percent Exam Volume= 27.6 Area Sq. In.

Area Scanned of Area Weld Length 60° T*Scan S4)

A*

4.5 4.5 16.3%

360 60° T*Scan t S6)

A 23.1 9.1 33.0%

360 IRS P-Scan S4)

A 4.5 4.5 16.3%

360 60° P*Scan ($6}

A 23.1 2.8 10.1%

360 so* T-Scan CS4) 60° T -Scan S6)

IRS P-Scan S4) 60° P-scan S6) 60° T*Scan $4}

60° T-Scan SS)

IRS P-Scan S4) 60° P-Scan (S6) so* T*Scan S4lso* T -scan SS)

IRS P-Scan S4lso* P*Scan (S6)

% Total Composite Coverage =

Comments:

Examination volume in accordance with Code Case N-613-1.

A'* Single side access, 100% credit of the achieved Supplement 4 T-scan volume claimed law. 10CFA50.55a.

Note - Roundino methods mav affect calculated values. Weld lenoth in deorees

  • 2-. -.....-.i J,. j),v__ I '-

Percent 8.2"/o 16.5%

8.2%

5.1%

37.9%

~ - 0 9'2~

o

\\J <

I z w

n I z <

to Letter 2.16.036 Page 16 of 34 RPV-N3C-NV eo*p Area not sc<1nned in the parallel to weld direction looking for aMial flaws Pilgrim Weld N3 Main Steam 60' Fl/ Exam Volume ~ 23. 1 Sq. In.

60°(I..-111% n Exam Volume* 4.5 Sq. In.

60° Fl/ T*Sa!n achieved

  • 9.1 Sq. In.

60° {Inn<< Ui% T) T-$can achlelled = 4.5 Sq. In.

eo*FVP-5eanachieved=L85q. ln.

60°(Inner15%T) IR & P-&:an achieved= 4.5 Sq. In.

eum volume In 8CCOfdance with Code Case N-613-1.

oo*T Area not scanned in either the Transverse or Parallel directions looking for axial and

GE Energy* Nuclear Reactor Pressure Vessel Coverage Calculation Sheet Pilgrim Unit-1, 2007 RPV-N3D-NV CODE CROSS.SECTIONAL AREA TOTAL CODE COVERAGE Weld Length = 360.

Required Exam Percent Exam Volume = 27.6 Alea Sa. In.

Alea Scanned of Area Weld Length 60° T-Scan lS4l A"

4.5 4.5 16.3%

360 60° T*Scan (86)

A 23.1 9.1 33.0%

360 IRS P-Scan (S4l A

4.5 4.5 16.3%

360 60° P*Scan (S6)

A 23.1 2.8 10.1%

360 60° T*Scan lS4l 60° T -Scan (S6l IRS P-Scan (S4l 60° P-Scan (S6l 60° T*Scan lS4l 60° T-Scan (S6l IRS P-Scan (S4l 60° P-Scan CS6) 60° T-Scan IS4l 60° T-Scan IS6l IRS P-Scan (S4) so* P-Scan CS6l

% Total Composite Coverage =

Comments:

Examination volume In accordance with Code Case N*613*1.

A"* Single side access, 100% credit of the achieved Supplement 4 T-scan volume claimed iaw. 10CFRS0.55a.

Note

  • Rounding methods may affect calculated values. Weld lenQth in dearees.

i -'

Percent 8.2%

16.5%

8.2%

5.1%

37.9%

A.. 0 9r.!:l.ll5

o

""C <

I z w c I z <

to Letter 2.16.036 Page 18 of 34 RPV-N30-NV 60"TIP Area not SC4nned in the parallel to weld direction looking for axial flaws Pilgrim Weld N3 Main Steam 60' FV Exam Volume,. 23.1 Sq,. In, 60° (!Mer 15% T) Exam Volume: 4.5 Sq. In.

60' FVT-Scan achieved* 9.1 Sq. In.

60" (Inner 15%T) T-&:an achieved" 4.5 Sq. In.

so* FV P-8can achieved " 2.8 Sq. In.

60' (Inner 15%T) IR & P-&:an achieved" 4.5 Sq. In.

Exam volume In llCCO!dance with COde C8se N-613*1.

60'T I

Area not scanned in either the Transverse or Parallel directions looking for axial and clrc flaws.

  • 360 Area sq. In.

Area Scanned ofAreo Weld Length Percent Exom Volume

  • 64.S IRS-Scan LKCW (54)

A 9.6 9.6 14.9%

360 3.7'16 IRS-Scan LKCCW (S4l A

9.6 9.6 14.9%

360 3.7'16 60° P*Scan 156)

A 54.9 14.0 21.7'16 360 10.9%

60" T-Scon (S4l A

9.6 9.6 14.9%

360 7.4'16 60" 1-scon 1S61 A

54.9 30.4 47.1%

360 23.6'16

% Total Composite Coverage" 49.3%

llw.Ot/ZllM Comments A - Scanned area 360". Scanning limited oue to noZ21e configuration.

Note - Rounding methods may affect calculated values. 54-5upplement 4 underclod volume, 56-5upplement 6 volume. Weld lenath in dec:iree!

PNPS RF018*013 Page 5 of 7 to Letter 2.16.036 Page 20 of 34 f I D s RPV-N4A-NV Area not scanned in the parallel to weld direction looking for axial flaws Pilgrim Feedwater Nozzle 60" S4 f><om Volt.ml! = 9.6 Sq II\\

60" 56 f><om Volume

  • Sll.9 Sq. In 60" S4 IRS-Scan LKCW ochievl!d = 9.6 Sq. In 60" 54 IRS*Scon LKCCW o~
  • 9.6 Sq. In, 60° 56 P-Scon ocNeved = 14.0 Sq. In.

60" S4 T-Scon ochieved

  • 9.6 Sq, In.

60° 56 T-Scon achieved* l0.4 Sq. In.

Area not scanned in either the Transverse or Parallel directions loo ing for airial and circ flaws.

I HITACHI Reactor Pressure Vessel Coverage Calculation Sheet Pilgrim RF0-18, 2011 N4B - Feedwater CODE CROSS-SECTIONAL AREA TOTALCOOECOVERAGE Required Exom Percent Weld Length =

360 Area sq. In.

Area Scanned of Areo Weld length Percent EKom Volume..

&i..s IRS-Scan LKCW (541 A

9.6 9.6 14.996 360 3.796 IRS-Scan LKCCW IS41 A

9.6 9.6 14.996 360 3.7%

60" P-Scan (561 A

54.9 14.0 21.7%

360 10.996 60" T-Scon 1541 A

9.6 9.6 14.996 360 7.496 60" 1-scon 1561 A

54.9 30.4 41.196

.l60 23.696 96 Total Composite Coverage =

49.396 Comments A - Scanned oreo 360*. Scanning limited due to nozzle configuration.

Note - Rounding methods may affect calculated volues. S4*Supplement 4 underdod volume, S6-Supplement 6 volume. Weld length in decrees PNPS RFOl B-015

~. o m...,

Page 5 of 7

0 "C <

I z

.i::.

CD I z <

to Letter 2.16.036 Page 22 of 34 RPV-N4B-NV Area not scanned in the parallel to weld direction looking for axial flaws Pilgrim Feedwater Nozzle 60" S4 f)(om Volume "' 9.6 Sq. In.

so* S6 &com Volume : 54.9 Sq. It\\

60" S4 IRS*Scon LKCW ochielled" 9.6 Sq. In.

60" S4 IRS-Scan LKCCW achieved= 9.6 Sq. In.

60" S6 P*Scan achieved= 14.0 Sq. In.

60" S4 T*Scon achieved* 9.6 Sq. In.

604 S6 T*Scon achieved"' 30.4 Sq. In.

is.r 60'T Area not scanned in either the Transverse or Parallt>I directions looking for axial and circ flaws.

360 Area sq. In.

Area Scanned of Area Weld Length Percent EMam Volume =

64.S IRS-Scan LKCW IS41 A

9.6 9.6 14.9%

360 3.7'16 IRS-Scan LKCCW 154)

A 9.6 9.6 14.9'16 360 3.796 60" P*Scon (S61 A

54.9 14.0 21.7%

360 10.996 60" T*Scon (S4l A

9.6 9.6 14.996 360 7.496 w* T -Scan tS61 A

54.9 30.11 47.1%

.>DU 23.b'lb

% Total Composite Coverage=

49.3%

R..... o t12~

U>mments A* Scanned oreo 360*. Scanning limited due to nozzle configuration.

Note

  • Rounding methods moy affect colculoted values. 54-Supplement 4 underclad volume, 56-Supplement 6 volume. Weld length in deorees Report PNPS-RFOlB-017 Page 5 of 7
o

"'C <

I z

.i:..

(")

I z <

to Letter 2.16.036 Page 24 of 34 RPV-N4C-NV Area not scanned in the parallel to weld direction looking for axial flaws Pilgrim Feedwater Nozzle 60" S4 EllOITI Volume = 9.6 Sq. In.

60" S6 El<orn Volume

  • 54.9 Sq. In.

60" S4 I RS* Sc on LJ<CW achieved = 9.6 Sq. In.

60" 54 IRS-SCOll LKCCW achieved= 9.6 Sq. In.

60" 56 P*SCon ochieved

  • 14.0 Sq. In.

60" S4 T *Scan achieved* 9.6 Sq. In.

60" S6 T *Scan achl!wd = 30.4 Sq. In.

Area not scanned in either the

  • Transverse or Parallel directions looking for axial and circ flaws.
  • I HITACHI Reactor Pressure Vessel Coverage Calculation Sheet Pilgrim RF0-18, 2011 N4D - Feedwoter CODE CROSS-SECTIONAL AREA TOTAL CODE COVERAGE Required Exam Percent Weld Length =

360 Area sq. In.

AntoScaMed of Area Weld Length Percent Eicam Volume*

64.S IRS*Scan LKCWIS41 A

9.6 9.6 14.9%

360 3.796 IRS*Scan LKCCW 1541 A

9.6 9.6 14.9%

360 3.796 60" P-Scon 1561 A

54.9 14.0 21.7%

360 10.9%

60" T-Scon 1541 A

9.6 9.6 14.9%

360 7.4%

w-T -scan 1561 A

54.9 30.4 47.J.'lf>

360 23.696

% Total Composite Coverage "'

49.3%

Root.* f/lJ/C!

Comments A-Scanned area 360°. Scanning limited due to nozzle configuration.

Note - RaundinQ methods may affect calculated values. 54-Suoolement 4 underclad volume. 56-Supplement 6 volume. Weld length in decrees Report PNPS-RFOlB-019 Page 5 of7

a "ti <

I z

~

c I z <

to Letter 2.16.036 Page 26 of 34 RPV-N4D-NV Area not scanned in the parallel to weld direction looking for axial flaws Pilgrim Feedwater Nozzle 60" 54 Exam Volume

  • 9.6 Sq. In.

60" S6 Exom Volume

  • 54.9 Sq. In.

60" 54 IRS-Scan LKCW achieved "' 9.6 Sq. In.

60" 54 IRS-Scan LKCCW ochleved = 9.6 Sq. In.

60" 56 P-SCan achieved* 14.0 Sq. In.

60" S4 T-Scon achieved* 9.6 Sq. In.

60" 56 T *Scan cchk!ved = 30.4 Sq. In.

15.T Area not se<1nned in either the Transverse or Parallel directions looking for axial and circ flaws.

GE Energy* Nuclear Reactor Pressure Vessel Coverage Calculation Sheet Pilgrim Unit-1, 2007 RPV-N6A-NV CODE CROSS-SECTIONAL AREA TOTAL CODE COVERAGE Weld Length = 360.

Required Exam Percent Exam Volume = 23.2 Area Sq. In.

Area Scanned of Area Weld Length 60° T *Scan lS4 l A*

3.7 3.7 15.9%

3SO 60° T*Scan (SS A

19.5 9.0 38.8%

360 IRS P-Scan lS4 A

3.7 3.7 15.9%

360 so* P-Scan (SS A

19.5 3.5 15.1%

360 S0° T*Scan (S4) 60° T *Scan (SS IRS P*Scan IS4 so* P-scan (SS 60° T*Scan (S4) oo~ T *Scan (S6 IRS P*Scan (S4 60° P-Scan (S6 60° T-Scan (S4) so* T-Scan (SS IRS P-Scan ($4) so* f-'*Scan (S6)

% Total Composite Coverage =

Comments:

A** Single side access, 100% credit of the achieved Supplement 4 T-scan volume claimed law. 10CFR50.55a.

Note

  • Roundina methods may affect calculated values. Weld leoath In degrees.

k-:..... ~ ~..,, ~,)

l:f'y

. /.>-£-. ) ~.:;u-

......;.;......... ~ -

Percent 8.0%

19.4%

8.0%

7.5%

42.9%

Rev 0 ll/2~

0

'"O <

I z a>

~

z <

to Letter 2.16.036 Page 28 of 34 60"TIP Area not scanned In the parallel to weld direction looking for axial flaws RPV-N6A-NV eo*p Pilgrim Unit-1 Weld N6 Core Spray 60" FV Exam Volume= 19.5 Sq, In, 60' (Inner 15% 1) EMm Volllne = 3. 7 Sq. In.

60' FV T.scan ;idlleved

  • 9.0 Sq. In.

eo* (Inner 15%T) T-SQ!n achkMld = 3.7 Sq. In.

W FV P*Scan edlieved = 3.5 Sq. In.

60' (Inner 15% T) IRS & P-Scan llCllieved

  • 3. 7 Sq. In.

60"T Am not scanned in either the Transverse or Parallel directions lookirt for axial and clrc flaw~.

e HITACHI SP2000 RPV Examination Coverage Calculation Sheet Pilgrim Unit-1 / RF0-20 RPV-N7A-NV CODE CROSS-SECTIONAL AREA TOTAL CODE COVERAGE Percent Weld Length "'

180.00 Required Exam Area Scanned of Area Weld Length Percent Exam Volume=

15.80 Area Sq. In.

50* T-Scon 156 A

14.00 6.80 0.43 180.00 21.5%

50* T-Scon IS41 A

1.80 1.80 0.11 180.00 5.796 IRS P-Scon 155)

A 1.80 1.80 1.00 180.00 50.0%

Percent Weld Length :

180.00 Required Exam Area Scanned of Area Weld Length Percent Exam Volume:

14.50 Area Sq. in.

60°T-Scon156 B

12.30 11.20 0.71 180.00 35.4%

60" T-Scon 1541 B

2.20 2.20 0.14 180.00 7.0%

IRS P-Scon (SS)

B 2.20 2.20 1.00 180.00 50.0%

60° T-Scon (56 60" T-Scan 1541 IRS P-Scon 1551 60°T-Scan (56 60° T-Scon 154)

IRS P-Scan 1551

% Total Composite Coverage=

84.896 Rev.O 9113/CIS Comments:

A-Manual scanning was limited due to the nozzle configuration. Top side of offset nozzle.

B - Manual scanning was limited due to the nozzle configuration. Bottom side of offset nozzle.

~e 8of'q Examination volume is in accordance with Code Cose N-613-1. Circumferential examination of the outer 85%T is not required by the 2001 Edition with 2003 Addenda.

Note - Rounding methods may affect calculated values. UC-Underclod, FV-Full volume. NS-Near Surface. Weld lencith in degrees.

r-J I >

. I I

ti

"'CJ <

I z

~

z <

to Letter 2.16.036 Page 30 of 34 HITACHI RPV-N7A-NV N7A Top Side l

N7A Bottom Side Top Head N7A Nozzle

...... _..,...~...,...

s......,_..,..........,......

Area not scanned in either the Transverse or Parallel directions looking for axial

~nn,...j,.,.,. fl~u1c Cross Sectional Coverage 0° and 180° Top Head N7A Nozzle S6C-~ U.J5"1ft

"--'°"'~*11S.:~

w....,.~ *.......w

  • lll~*

~----~~

  • 11S.....

$il4NCWfa:'N~~_,........ ll5ootll>... ~

~

HITACHI Reactor Pressure Vessel Coverage Calculation Sheet Pilgrim Unit-1 RF0-17 Weld RPV-N9A-NV CODE CROSS*SECTIONAL AREA TOTAL CODE COVERAGE Required EJcam Percent Weld length =

360 Area sq. In.

Area Scanned of Area Weld Length Percent Exam Volume

  • 32.1 IRS*Scan LI<CW (541 A

5.3 5.3 16.5%

360 4.1%

IRS-Scan LKCCW IS4l A

5.3 5.3 16.5%

360 4.1%

&o* P-Scan 1561 A

26.8 21.9 68.2%

360 34.1%

Go* T -Scan IS4l A

5.3 5.3 16.5%

360 8.3%

60" T-Scan 1561 A

26.8 22.9 7L3%

360 35.7%

% Total Composite Coverage =

86.3%

Comments A - Scanned area 360*. Scanning limited due to nozzle configuration.

Note* Rounding methods may offactrnlculoted values. S4*Supplement 4 underclod volume, 56-Supplement 6 volume. Weld length in degree~

~... rr I c>. w.,

~,,,..:-./~ )L.....u

..,,,6.,/...1 Rt1 0 9/ll/OS

0

"'C <

I z

<O

~

z <

to Letter 2.16.036 Page 32 of 34 Area not scanned In the parallel to weld direction looking for axial flaws RPV-N9A-NV Pilgrim N9 Nozzle - Jet Pump Instr.

60. S4 &. IRS El<<lm Volume s S.3 Sq. In 60" S6 E><om volume
  • 26_8 Sq_ In.

60- S4 T *Scon E><om Volume

  • 5.3 Sq, In 60" S6 T-Scon El<<lm Volume ~ 22.9 SQ-In.

IRS P-Scon E><am Volume* 5.3 Sq. In 60" 56 P-Scon Exom Volume

  • 21.9 Sq. In.

15.J" 60"T;Sccm Area not scanned In either the Transverse or Parallel directions looking for axial and circ flaws.

8 1 HITACHI Reactor Pressure Vessel Coverage Calculation Sheet Pilgrim RF0-18, 2011 NlO - CRD Return CODE CROSS-SECTIONAL AREA TOTAL CODE COVERAGE Required Exam Percent Weld Length

  • 360 Area sq. In.

Area Scanned of Area Weld Length Percent Exom Volume =

58.6 IRS-Scan LKCW 1541 A

6.5 6.5 11.196 360 2.8%

IRS-Scan LKCCW (541 A

6.5 6.5 11.1%

360 2.896 60- P-Scon 1561 A

52.1 13.3 22.796 360 11.396 60" T-Scon (541 A

6.5 6.5 ll.196 360 5.596 DU T-Scan l:>DJ A

52.1 24.9 42.596 360 21.2%

% Total Composite Coverage"'

43.7%

tl<v.O 9/ll/ll!

Comments A - Scanned area 360". Scanning limited due to nozzle configuration.

Note - Rounding methods may affect colculoted values. S4-Supplement 4 underclod volume, S6-Suoolement 6 volume. Weld lenoth in decrees PNPS RF018-021 Poge 6 of 7

0.,,

-:=: z 0

I z <

to Letter 2.16.036 Page 34 of 34 Area not scanned in the parallel to weld direction looking for axial flaws RPV-N10-NV Pilgrim CRD Nozzle 60" 54 Exam Volume

  • 6.S Sq. In.

60" S6 Exam Volume

  • 52.1 Sq. In 60" 54 IRS-Scon LKCW achieved
  • 6.5 Sq. tn.

60" 54 IRS-Scon LKCCW ochieved - 6.5 Sq. In.

60" 56 P-SCon achieved - 13.3 Sq. In.

60" 54 T-SCon achieved - 6. so Sq. In.

60" S6 T-Scon achieved

  • 24.9 Sq. In Area not scanned In either the Tra n sver~e or Parallel directions looking for aKial and clrc Oaws.

to Letter 2.16.036 Request for Relief - PNPS-151-003 (3 Pages) to Letter 2.16.036 Page 1 of 3 Components I Numbers:

Code Classes:

References:

REQUEST FOR RELIEF - PNPS-ISl-003 Reactor Vessel Attachment Weld I RPV-S8W-270 American Society of Mechanical Engineers (ASME) Code Class 1 ASME Section XI 1998 Edition w/ 2000 Addenda, Table IW8-2500-1, ASME Section XI 2001 Edition w/ 2003 Addenda, Table IW8-2500-1, Code Case N-460 Examination Category:

8-K ltemNumber(s) 810.10

==

Description:==

Welded Attachments for Vessels, Piping, Pumps, and Valves -

Inspection Program 8 Unit/ Inspection Pilgrim Nuclear Power Station (PNPS) I Fourth (4th) 10-Year Interval Interval Applicability:

I.

CODE REQUIREMENTS ASME Section XI, Table IW8-2500-1, Examination Category 8-K, "Welded Attachments for Vessels, Piping, Pumps, and Valves - Inspection Program 8":

Item 810.10 requires a surface examination of the RV welded attachment, as depicted in Figure IW8-2500-15.

II.

RELIEF REQUEST Pursuant to 10 CFR 50.55a(g)(6)(i), Entergy Nuclear Operations, Inc. (Entergy) requests relief from achieving the Code-required coverage when performing surface examinations of the Reactor Vessel Attachment Weld I RPV-SBW-270.

Ill.

BASIS FOR RELIEF During surface examination of the Reactor Vessel Attachment Weld I RPV-SBW-270, greater than 90% coverage of the required examination area could not be obtained.

Examinations were performed utilizing Entergy approved procedures specific to magnetic particle examination.

Due to the geometric configuration of the component and permanent structural steel, effective surface examination could only be performed on the top side of the weld. See Table 3-1 for additional information.

Radiography is not practical on these types of welded attachment configurations, which prevent placement of the film and exposure source. To effectively perform any to Letter 2.16.036 Page 2 of 3 significant additional Code allowable surface examinations, modification and/or replacement of the component would be required. The examinations performed on the subject items in addition to the examination of other vessel welds contained in the lnservice Inspection program would detect generic degradation, if it existed, therefore demonstrating an acceptable level of integrity.

IV.

PROPOSED ALTERNATIVE EXAMINATIONS No alternative testing is proposed at this time. Entergy has examined this weld to the extent practical.

V.

CONCLUSION 1 O CFR 50.55a(g)(6)(i) states:

The Commission will evaluate determinations under paragraph (g)(5) of this section that Code requirements are impractical. The Commission may grant such relief and may impose such alternative requirements as it determines is authorized by law and will not endanger life or property or the common defense and security and is otherwise in the public interest giving due consideration to the burden upon the licensee that could result if the requirements were imposed on the facility.

Entergy believes that it is impractical to obtain greater examination coverage on these welds. To effectively obtain significant additional coverage would necessitate modification and/or replacement of the component. The examinations performed on the subject weld, in addition to the examination of similar welds contained in the program, would detect generic degradation, if it existed, demonstrating an acceptable level of integrity. Entergy requests the proposed relief be authorized pursuant to 10 CFR 50.55a(g)(6)(i).

to Letter 2.16.036 Page 3 of 3 Top View of lug Ir 10" Examined weld on top of lug= U..

Not examined (Inaccessible)

Bottom of lug = 12" Side of lug= 4.375.. >< 2 = 8. 75..

Total possible exam surface= 32.* 75" RPV-SBW-270 Component III>: RPV*SBW-270 Limited Exam CGverage Side View 8.18r

)

Achieved Examination Coverage= 12 + 32.75 = 36.6%

RP'V~SBW-270 Plan View to Letter 2.16.036 Request for Relief - PNPS-ISl-004 (4 Pages) to Letter 2.16.036 Page 1 of 4 Components I Numbers:

Code Classes:

References:

REQUEST FOR RELIEF - PNPS-ISl-004 Pressure Retaining Welds in Austenitic Stainless Steel or High Alloy Piping I DC-10-F10R and DC-14-F31 American Society of Mechanical Engineers (ASME) Code Class 2 ASME Section XI 1998 Edition w/ 2000 Addenda, Table IWB-2500-1, ASME Section XI 2001 Edition w/ 2003 Addenda, Table IWB-2500-1, Code Case N-578, Code Case N-460 Examination Category:

C-F-1 Item Number(s)

C5.11

==

Description:==

Pressure Retaining Welds in Austenitic Stainless Steel or High Alloy Piping - Inspection Program 8 Unit/ Inspection Pilgrim Nuclear Power Station (PNPS) I Fourth (4th) 10-Year Interval Interval Applicability:

I.

CODE REQUIREMENTS ASME Section XI, Table IWC-2500-1, Examination Category C-F-1, "Pressure Retaining Welds in Austenitic Stainless Steel or High Alloy Piping":

Item C5.11 requires a volumetric examination of Pressure Retaining Welds in Austenitic Stainless Steel or High Alloy Piping volume, as depicted in Figures IWC-2500-7 as applicable.

II.

RELIEF REQUEST Pursuant to 10 CFR 50.55a(g)(6)(i), Entergy Nuclear Operations, Inc. (Entergy) requests relief from achieving the Code-required coverage when performing volumetric examinations of the components identified in Attachment 6 Table 4-1.

Ill.

BASIS FOR RELIEF During ultrasonic examination of the austenitic stainless steel piping welds listed in Attachment 6 Table 4-1, greater than 90% coverage of the required examination volume could not be obtained.

Examinations were performed utilizing a POI Appendix VIII Supplement 2 qualified procedure specific to austenitic piping welds.

Due to the geometric configuration of the components, effective volumetric examination could only be performed from the pipe side of the weld. The 45°, 60° shear and 60"refracted longitudinal (RL) beam angles used in the axial and circumferential direction were not able to achieve greater than 90% code required volume of the austenitic stainless steel circumferential welds as required by Code Case N-460.

to Letter 2.16.036 Page 2 of 4 To effectively perform any significant additional Code allowable ultrasonic examinations, modification and/or replacement of the component would be required. The examinations performed on the subject items in addition to the examination of other piping welds contained in the lnservice Inspection program would detect generic degradation, if it existed, therefore demonstrating an acceptable level of integrity.

IV.

PROPOSED ALTERNATIVE EXAMINATIONS No alternative testing is proposed at this time. Entergy has examined these welds to the extent practical and will continue to perform pressure testing on the subject components as required by the Code.

V.

CONCLUSION 10 CFR 50.55a(g)(6)(i) states:

The Commission will evaluate determinations under paragraph (g)(5) of this section that Code requirements are impractical. The Commission may grant such relief and may impose such alternative requirements as it determines is authorized by law and will not endanger life or property or the common defense and security and is otherwise in the public interest giving due consideration to the burden upon the licensee that could result if the requirements were imposed on the facility.

Entergy believes that it is impractical to obtain greater examination coverage on these welds. To effectively obtain significant additional coverage would necessitate modification and/or replacement of the component. The examinations performed on the subject welds, in addition to the examination of similar welds contained in the program, would detect generic degradation, if it existed, demonstrating an acceptable level of integrity. Entergy requests the proposed relief be authorized pursuant to 10 CFR 50.55a(g)(6)(i).

to Letter 2.16.036 Page 3 of 4 Single side access only due to valve lo pipe configuration. Far side area scanned With 60 degree RL tor Best Effort per procedure.

0.44* H x 1.zr w x sr L = 30.598 x 2 (ale)

= 61.195 = 46.92",i, Best Effort Coverage Axial Scan area limited due to Drain Line 0.44" H x 1.38" W x 2-T L = 1.639 Circl Scan area fimited due to Drain Line 0.44'H x 0.68" W ~ 2.7" L = 0.808 The CRV obtained was limited to 51 19% in the axial and circ directJOn. The examination was imlted to scanning from the pipe side o~ due to the limijed length of scan araa fi'om valve, taper and weld crown.

The CRV is based on a 0.44" H x 2.6" W x 57' L volume

= 65.21" x 2 (NC)= 130.42" Pipe side coverage was calculated based on the accessible area not obstructed by drain. Pipe 5'de volume is 0.44 H x 1.38 W x 57 L

  • 34.81x2 (ale)*

69.22. Tomi obslJUcted area 2.447.

69.22 - 2.447. 66.773 1 130.42 *. 5119 = 51 19%

The Best Effort area obtained was 61.195" = 46 92%

Total area scanned Including Best Effort= 96.11%

DC-10-F10R Compone111t 10 : IDC*10*F10R.

Limited Exam Coverage Profile 45$

Pipe View Looking Up I

1~ 0.68"C Drain Line to Letter 2.16.036 Page 4 of 4 DC-14-F31 Component liD: DC-1 4-F31 Limited exam coverage Profile Valve Pipe

~

Area not scanned in axial or circ direction due to valve to pipe configuration. Far side area scanned with 60 degree RL for best effort per procedure.

The CRV obtained was limited to 50%. The examination was limited lo scanning from the pipe side only due to the limited length of scan area on the valve, taper and weld crown.

The CRV is based on a 0.3" H x 1.65" W volume= 0.495", 50% = 0.248" The Best Effort area obtained was 0.248-" = 500/.:,

Total area scanned including Best Effort= 100%

to Letter 2.16.036 Request for Relief - PNPS-151-005 (12 Pages) to Letter 2.16.036 Page 1 of 12 Components I Numbers:

Code Classes:

References:

Request for Relief - PNPS-ISl-005 See Attachment 6 Table 5-1 American Society of Mechanical Engineers (ASME) Code Class 1 and 2 ASME Section XI 1998 Edition w/ 2000 Addenda, ASME Section XI 2001 Edition w/ 2003 Addenda, Code Case N-578 Code Case N-716 Examination Category:

R-A Item Number(s)

R1.11, R1.20

==

Description:==

Risk Informed Piping Welds Unit/ Inspection Pilgrim Nuclear Power Station I Fourth (4th) 10-Year Interval Interval Applicability:

I.

CODE REQUIREMENTS ASME Section XI, Code Case N-716, Examination Category R-A "Risk Informed Piping Welds":

Item R1.11 (Elements Subject to Thermal Fatigue) requires a volumetric examination of Risk Informed Piping Weld volume.

Item R1.20{Elements Not Subject to a Damage Mechanism) requires a volumetric examination of Risk Informed Piping Weld volume.

II.

RELIEF REQUEST Pursuant to 10 CFR 50.55a(g)(6)(i), Entergy Nuclear Operations, Inc. (Entergy) requests relief from achieving the Code-required coverage when performing volumetric examinations of the components identified in Attachment 6 Table 5-1.

to Letter 2.16.036 Page 2of12 Ill.

BASIS FOR RELIEF During ultrasonic examination of the Appendix VIII Circumferential piping welds listed in Attachment 6 Table 5-1, greater than 90% coverage of the required examination volume could not be obtained.

Examinations were performed utilizing Entergy approved procedures specific to austenitic stainless steel piping welds.

Due to the geometric configuration of the components, effective volumetric examination could only be performed as noted in the Table 5-1. The 45*, 60° and 70" beam angles use in the axial and circumferential direction were not able to achieve greater than 90% code required volume as required by Code Case N-460. See Attachment 6 Table 5-1 for additional information.

To effectively perform any significant additional Code allowable ultrasonic examinations, modification and/or replacement of the component would be required. The examinations performed on the subject items in addition to the examination of other piping welds contained in the lnservice Inspection program would detect generic degradation, if it existed, therefore demonstrating an acceptable level of integrity.

IV.

PROPOSED ALTERNATIVE EXAMINATIONS No alternative testing is proposed at this time. Entergy has examined these welds to the extent practical and will continue to perform pressure testing on the subject components as required by the Code.

V.

CONCLUSION 10 CFR 50.55a(g)(6)(i) states:

The Commission will evaluate determinations under paragraph (g)(5) of this section that Code requirements are impractical. The Commission may grant such relief and may impose such alternative requirements as it determines is authorized by law and will not endanger life or property or the common defense and security and is otherwise in the public interest giving due consideration to the burden upon the licensee that could result if the requirements were imposed on the facility.

Entergy believes that it is impractical to obtain greater examination coverage on these welds. To effectively obtain significant additional coverage would necessitate modification and/or replacement of the component. The examinations performed on the subject welds, in addition to the examination of similar welds contained in the program, would detect generic degradation, if it existed, demonstrating an acceptable level of integrity. Entergy requests the proposed relief be authorized pursuant to 10 CFR 50.55a(g)(6)(i).

to Letter 2.16.036 Page 3 of 12 45 s 2R-HB-3 0 and 180 Degree Limitation 60RL 455 Cross.

Header

4.. - -ot...._..~

Area not scanned from both sides of the weld due to coofiguration.

Approximately 23" at o* and 23" at 180" along the circumference of the weld were limited to single side access.

Risk informed exam volume is (5.156" W x 0.531 " H x 69.5" L).

CRV = 190.279" = 100%

NS volume scanned is (3.876 W x 0.531

  • H x 69.5" L) 143.04". FS volume scanned is (1.281wx0.531" H x 23_5* L) 15.98*. 143.04(NS}+

15.98(FS) = 159.021190.279=83.57% CRV obtained.

Limited volume not scanned is (1.281Wx0.531" H x 4tl" L) 31.289".

See diaaram below.

Limited area at o*

23" Limited area at 180° 23" to Letter 2.16.036 Page 4of 12 Component ID: 12-0-24 Limited exam coverage PmfiJe Penetration I

Area scanned for circ flaws providing Best Effort coverage in the axial direction using 70 Shear per the procedure. Coverage limited due to weld crown and component geometry.

70S 60$

45S 60S Pipe Area not scanned for circ flaws to obtain Best Effort coverage in the axial direction. Coverage limited due lo weld crown and component geometry.

The CRV obtained was limited to 50% in the axial direction. The examination was limited to scanning from the pipe side only due to the limited length of scan area, penetration taper and weld crown. Scanning in the circumferential direction was performed utilizing manual skewing in both the CW and CCW directions upstream and downstream lo obtain coverage.

The CRV is based on a 0.12" H x 1.T'W volume"' 0.204", 50% "'0.102" The Best Effort area obtained was 0.057" = 27.9%

Total area scanned including Best Effort = 77.. 9%

to Letter 2.16.036 Page 5 of 12 Valve Code Required Volume (CRV)

,,,,,,,,,,,,,'\\:

Co*mponent ID : 14-A 1 OA Limited Exam Coverage

\\

\\

\\

\\

\\

\\ \\

\\

\\ "

/

/

/

I

/

\\

\\

.../.

45-S Circ Area not covered by either 45 Shear Gire, 40

& 50 S/RL PA, Ax - Circ scan.

Area not covered by either 40 & 50 S/ RL PA, Circ & Ax Area not covered by 40 S/RL PA, Circ

&Ax 40 & SO S/RL PA, Circ & Ax Pipe

System:

Posi1bt HITACHI O"

w NIA 0.61r' Ii/It 0.5aS" H/A O.M "'"

1l1::51QfalldJm Ora.i<<lby.

" lllO' NIA Hiit NIA NIA NIA l111' till.

H/A NIA NIA NIA WaH Thickness I Slhr.

fllilBil.

Profile Sheet l'IOjtcl:

@FOJO

~llDNll!l'ibet:

(i(Wl~

CrownWld '

~Olometer:

Weldlengllr.

~

ru:

.!IJ.':

u M

14*A-10A

.\\S'S ManualClrcScans PY m

1'&l!f UPST CQlllPOllCl!t I

Wond 50'S/Rt'

~

EllllmVdul114t Pipe l'Ndont1$ obtQ!fl1d ftOlll prlVious daUJ.

wt'.d roat Oeotri<<ll)I ~

diliM lilt 17Q11il!QIJon.

Monuol CClllWfllionol clrc: scans per£amied Ill obtoln odditlonol COv*'O!li in QtQOJ

  • C.ode @IOOm YOILrllr
  • O.l7 sq. in, I COmJl0$ilf CMrogc llChiMd
  • lU,._

~5alll~l"'1td*0.10SQ. n ?7,IM Ci'cSconAd-.!Mdo..11sci.ln. ~.19' UM:

~No.!

eNPSAEQI~

1.5 11 rn

!~~~~~"-

Dote:

Pogt ll d li n

0 3 "C

0

s (I)
s -

c to Letter 2.16.036 Page 7 of 12 Valve Code Required Volume (CRV)

"'''''''x Component ID :14-B-10A Umited Coverage Plot 45-S Circ Area not covered by either 45 Shear Circ, 40

& 50 S/RL PA, Ax - Circ scan.

Area not covered by either 40 & 50 S/RL PA, Circ&Ax Area 110! covered by 40 S/RL PA, Circ

&Ax 40 & 50 S/RL. PA, Ci~c & Ax Pipe

l wall Thickness HITACHI Profile Sheet Sile:

et!D mill 51'$tcrrt l'C!!iilictl I ~

'°"

z J

5 I

HIA HIA I H/A NIA 1 o. 12rr I NIA I O.S4S" I NIA I O.S$7' I NIA ftwn l'oudicn Drawn by:

g I

lllO' 21D" WA HJA J Hiit NIA l:

I HIA NIA Niii Hiit H/A H/A PrOjl!d:

Component 10 Number.

J+.i!MM CtOWt> MelQht e.r Cl'OWnWldU'I:

~

11&!4 mg:

"'1minol Oiomli1cr.;

UPST CQmPQfflint Wl'id IA!nl)tl'c Jll.11' 14-8-lOA

  • 5'S Honuol o,. ko;n~

I 4-0"'cnd SD'Sllt!..'s Ila"'*

l!"""'1 VOiume PCM!

Thidoness ~

lrom FJ11MOu' data.

W.td root veomeuy c'liff,""'!11 d!Jl1!>Q Ull! eianlna!IQO, Manucil COOYl!fl&IQ11QI t ~5 pl!lfllt!rlitd to obl.Oorl <:C'lt!fage In Ofl'oS llqW.ed lo 1111 PA $eatth unlL Co.to 1t,...,., ldllme* 0.37 ~in._ I COffillOilt11 cawrage ~

  • 24..2.

lbllal StcnA(luf'll'td a0.08 SQ. In. lUi~ Cir~ $f;an i'Chielll!d

  • O.lOSQ. *l. Z7.0'!lo 11 ~1iG2/ifL__~~1~~

tevi!I:

Datir; GE ~ewvcl By,

~ :

Dole:

Utilif)I Unit 1

.r:w

. *port NO.:

fflPS llFOl<<-OOZ 14

((]

M ONST ComP<Jtlfnl:

dt'-

Oolll'.

Page u ol 1!

(")

0 3

'O 0 :l (I)

l -

c

.ii.

I OJ I.....

0 )>

-u r

)>

Ill CD :::::

ca ::::: Ill CD CD ()

~

CX> N 3 0

_... CD
0) :::J f\\.) 0 01 VJ -
0) 0 to Letter 2.16.036 Page 9 of 12 Valve Component ID: lOR-IA-6 limited Exam Coverage Pipe Single side access area not covered in the axial direction by procedure due to component configuration. 60 Rl used for Gire Flaw scan to obtain best effort coverage on the far side per procedure. 50% CRV achieved 100% with best effort.

Code Box (CRV) dimensions = 0.35" H x 1. T' W x 57" l Best effort far side box = 0.35" H x 0.85" W x 57" L to Letter 2.16.036 Page 10of12 P~pe 45 s Component ID: 110R*IA*7 Limited Exam Coverage 455 60RL Valve Single side access area not covered in the axial direction by procedure due to component configuration. 60 RL used for Circ Flaw scan to obta.in best effort coverage on the far side per procedure. 71.88% CRV achieved, 100% with best effort.

Code Box (CRV) dimensions"' 0.35" H x 3.2" W x 57" L Best effort far side box = 0.35" H x 0.90" W x sr L to Letter 2.16.036 Page 11 of 12 Fluecl Head Component 10 1* 10R.-IB-14 limited Coverage 4SS 60Rl 455 Pipe Single side access area not covered in the axial direction by procedure due to component configuration. 60 Rl used for Gire Flaw scan to obtain best effort coverage on the far side per procedure. 78.62% CRV achieved, 100% with best effort.

Code Box (CRV) dimensions= 0.3" H x 3.6" W x 57" L = 61.56 NS volume scanned 0.3" H x 2.83" W x 57" = 48.4/61.56 = 78.62% CRV obtained per procedure.

Best effort far side box = 0.3" H x o. 77" W x 57" L - 13.167 to Letter 2.16.036 Page 12 of 12 45S Pipe Component II): 14R-A-11 0.667" 45S 70 L 0.653

0.589/t

~

Far side area scanned with 45 and 70 degree shear for best effort per procedure.

0.610

Va~ve 6A The CRV obtained was limited to 50% in the axial and circ directions. The examination was ~imited to scanning from the pipe side only due to the limited length of scan area, valve taper and weld crown.

The CRV is based on a 0.28 H x 2.0" W x 34.5" L volume= 19.32", 100%

The Best Effort area obtained was 0.28" H x 1.0" W x 34.5" l = 9.66" = 50%

Total area scanned including Best Effort = 100%

to Letter 2.16.036 Component Limited Examination Information (7 Pages) to Letter 2.16.036 Page 1 of 7 Cat Item Comp ID No.

B-A B1.12 RPV-L 338A B-A B1.12 RPV-L 338B B-A B1.12 RPV-L 338C B-A B1.12 RPV-L 338A B-A B1.12 RPV-L 338B B-A B1.12 RPV-L 338C B-A B1.12 RPV-L 339A B-A B1.12 RPV-L 339B Item Description Lower Intermediate Shell Vertical Weld Lower Intermediate Shell Vertical Weld Lower Intermediate Shell Vertical Weld Lower Shell Vertical Weld Lower Shell Vertical Weld Lower Shell Vertical Weld Upper Intermediate Shell Vertical Weld Upper Intermediate Shell Vertical Weld Table 1 Category B-A Component Information Material 1 and Material 2 and Examination Examination Limitations and Results Product Form Product Form Code Coverage Obtained Rolled Plate -

Rolled Plate -

88.40%

RPV Intermediate Shell Vertical Weld @ 60°. Jet Pump riser brace SA533 Gr. B SA533 Gr. B welded to the RPV shell wall is directly in the scan path to the CL1 CL1 transducer array. Exam results are acceptable with no indications recorded.

Rolled Plate -

Rolled Plate -

89.70%

RPV Intermediate Shell Vertical Weld @180°. Scanning was SA533 Gr. B SA533 Gr. B restricted due to proximity of the Guide Rod Bracket. Exam results CL1 CL1 are acceptable with no indications recorded.

Rolled Plate -

Rolled Plate -

55.60%

RPV Intermediate Shell Vertical Weld @300°. Jet Pump riser brace SA533 Gr. B SA533 Gr. B and RPV suNeillance Specimen Holder and Support Brackets welded CL1 CL1 to the RPV walls and directly in the scan path of the array. Shroud Tie Bar @ 315° prevents maneuvering of the scanner tooling to fully access the weld. Exam results are acceptable with no indications recorded.

Rolled Plate -

Rolled Plate -

75.80%

RPV Lower Shell Vertical Weld @75°. Shroud support and associated SA533 Gr. B SA533Gr. B gusset plates would not allow the scanner tooling to completely CL1 CL1 position the transducer array to the bottom of the weld, where the RPV vertical weld intersects with the shroud support plate. Exam results are acceptable with no indications recorded.

Rolled Plate -

Rolled Plate -

71.50%

RPV Lower Shell Vertical Weld@ 195°. Shroud support and SA533 Gr. B SA533 Gr. B associated gusset plates would not allow the scanner tooling to CL1 CL1 completely position the transducer array to the bottom of the weld, where the RPV vertical weld intersects with the shroud support plate.

Exam results are acceptable with no indications*recorded.

Rolled Plate -

Rolled Plate -

11.60%

RPV Lower Shell Vertical Weld @315°. (1) Shroud support and SA533 Gr. B SA533 Gr. B associated gusset plates would not allow the scanner tooling to CL1 CL1 completely position the transducer array to the bottom of the weld, where the RPV vertical weld intersects with the shroud support plate.

(2) The shroud tie bar@315° prevents maneuvering of the scanner tooling to fully access the weld. (3) N2K Nozzle radius prevents even contact of the scanner tooling. Exam results are acceptable with no indications recorded.

Rolled Plate -

Rolled Plate -

18.00%

RPV Upper Shell Vertical Weld @355°. Automated scanning was SA533 Gr. B SA533 Gr. B restricted due to proximity of Guide Rod, Feedwater End Bracket and CL1 CL1 internal Core Spray piping. The auto coverage was calculated to be 18%. Achieved coverage during RFO 14 was 81 %. The change in the achieved coverage is due to the differences in the design of the inside surface scanner utilized. Supplemental examination from the outside surface is not possible due to the design of the bio shield.

Exam results are acceotable with no indications recorded.

Rolled Plate -

Rolled Plate -

69.00%

RPV Upper Shell Vertical Weld @ 115°. Feedwater and Core Spray SA533 Gr. B SA533 Gr. B Spargers prevent maneuvering of the scanner tooling to fully access CL1 CL1 the weld and the angle of ID taper due to RPV shell course plate thickness change. Exam results are acceptable with no indications recorded.

to Letter 2.16.036 Page 2of7 Cat Item Comp ID No.

B-A B1.12 RPV-L 339C B-A B1.21 RPV-BH-C1 Item Description Upper Intermediate Shell Vertical Weld Bottom Head Circ. Weld Table 1 Category B-A (Cont.)

Component Information Material 1 and Material 2 and Examination Examination Limitations and Results Product Form Product Form Code Coverage Obtained Rolled Plate -

Rolled Plate -

73.20%

RPV Upper Shell Vertical Weld @ 235°. Feedwater and Core Spray SA533 Gr. B SA533 Gr. B Spargers prevent maneuvering of the scanner tooling to fully access CL1 CL1 the weld. Exam results are acceptable with no indications recorded.

Rolled Plate Rolled Plate -

68.20%

RPV Bottom Head Circumference Weld. The examination was limited SA533 Gr. B SA533 Gr. B due to the proximity of the RPV skirt on the lower side of the weld.

CL1 CL1 Also, the exam was slightly limited by thermocouples on the bottom head. No recordable indications were detected utilizing a 60°RL wave search unit. Three previously recorded indications were observed below recordable levels.

to Letter 2.16.036 Page 3 of 7 Cat Item Comp ID No.

8-D 83.90 RPV-N1A-NV 8-D 83.90 RPV-N2A-NV 8-D 83.90 RPV-N28-NV 8-D 83.90 RPV-N2C-NV 8-D 83.90 RPV-N3A-NV 8-D 83.90 RPV-N38-NV 8-D 83.90 RPV-N3C-NV 8-D 83.90 RPV-N3D-NV 8-D 83.90 RPV-N4A-NV 8-D 83.90 RPV-N48-NV 8-D 83.90 RPV-N4C-NV 8-D 83.90 RPV-N4D-NV 8-D 83.90 RPV-N6A-NV 8-D 83.90 RPV-N7A-NV Item Description Recirculation Outlet Nozzle-to-Vessel Weld Recirculation Inlet Nozzle-to-Vessel Weld Recirculation Inlet Nozzle-to-Vessel Weld Recirculation Inlet Nozzle-to-Vessel Weld Main Steam Nozzle-to-Vessel Weld Main Steam Nozzle-to-Vessel Weld Main Steam Nozzle-to-Vessel Weld Main Steam Nozzle-to-Vessel Weld Feedwater Nozzle-to-Vessel Weld Feedwater Nozzle-to-Vessel Weld Feedwater Nozzle-to-Vessel Weld Feedwater Nozzle-to-Vessel Weld Core Spray Nozzle-to-Vessel Weld Head Spray Nozzle-to-Closure Head Weld Table 2 Category B-D Component Information Material 1 and Material 2 and Examination Examination Limitations and Results Product Form Product Form Code Coverage Obtained Rolled Plate -

Nozzle Forging 43.80%

Manual scanning was restricted by the nozzle configuration. No SA533 Gr. 8

- SA508 CL 2 relevant indications were recorded.

CL1 Rolled Plate -

Nozzle Forging 33.60%

Manual scanning was restricted by the nozzle configuration. No SA533 Gr. 8

- SA508 CL2 relevant indications were recorded.

CL1 Rolled Plate -

Nozzle Forging 33.60%

Manual scanning was restricted by the nozzle configuration. No SA533 Gr. 8

-SA508 CL2 relevant indications were recorded.

CL1 Rolled Plate -

Nozzle Forging 33.60%

Manual scanning was restricted by the nozzle configuration. No SA533 Gr. 8

-SA508 CL 2 relevant indications were recorded.

CL1 Rolled Plate -

Nozzle Forging 37.90%

Scanning was performed from the vessel OD surface, and was SA533 Gr. 8

- SA508 CL 2 restricted due to nozzle configuration. No relevant indications were CL1 recorded.

Rolled Plate -

Nozzle Forging 37.90%

Scanning was performed from the vessel OD surface, and was SA533 Gr. 8

-SA508 CL2 restricted due to nozzle configuration. No relevant indications were CL1 recorded.

Rolled Plate -

Nozzle Forging 37.90%

Scanning was performed from the vessel OD surface, and was SA533 Gr. 8

-SA508 CL2 restricted due to nozzle configuration. No relevant indications were CL1 recorded.

Rolled Plate -

Nozzle Forging 37.90%

Scanning was performed from the vessel OD surface, and was SA533 Gr. 8

-SA508 CL2 restricted due to nozzle configuration. No relevant indications were CL1 recorded.

Rolled Plate -

Nozzle Forging 49.30%

Manual scanning was restricted by the nozzle configuration. No SA533 Gr. 8

-SA508 CL2 relevant indications were recorded.

CL1 Rolled Plate -

Nozzle Forging 49.30%

Manual scanning was restricted by the nozzle configuration. No SA533 Gr. 8

-SA508 CL 2 relevant indications were recorded.

CL1 Rolled Plate -

Nozzle Forging 49.30%

Manual scanning was restricted by the nozzle configuration. No SA533 Gr. 8

-SA508 CL2 relevant indications were recorded.

CL1 Rolled Plate -

Nozzle Forging 49.30%

Manual scanning was restricted by the nozzle configuration. No SA533 Gr. 8

-SA508 CL2 relevant indications were recorded.

CL1 Rolled Plate -

Nozzle Forging 42.90%

Scanning was performed from the vessel OD surface, and was SA533 Gr. 8

- SA508 CL 2 restricted due to nozzle configuration.

CL1 Rolled Plate -

Nozzle Forging 84.80%

Reactor pressure vessel nozzle to vessel top head weld. Limitations in SA533 Gr. 8

- SA508 CL 2 weld coverage were identified due to the nozzle configuration (proximity CL1 to the weld). This limitation exists at varying degrees for the entire length. No relevant indications were recorded.

to Letter 2.16.036 Page 4 of 7 Cat Item Comp ID No.

8-D 83.90 RPV-N9A-NV 8-D 83.90 RPV-N10-NV Item Description Jet Pump Instrument Nozzle-to-Vessel Weld Control Rod Return Nozzle-to-Vessel Weld Table 2 Category B-D (Cont.)

Component Information Material 1 and Material 2 and Examination Examination Limitations and Results Product Form Product Form Code Coverage Obtained Rolled Plate -

Nozzle Forging 86.30%

Manual scanning was restricted by the nozzle configuration. No SA533 Gr. 8

-SA508 CL2 relevant indications were recorded.

CL1 Rolled Plate -

Nozzle Forging 43.70%

Manual scanning was restricted by the nozzle configuration. No SA533 Gr. 8

-SA508 CL2 relevant indications were recorded.

CL1 to Letter 2.16.036 Page 5 of 7 Cat Item Comp ID No.

B-K 810.10 RPV-SBW-270 Item Description RPV Stabilizer Weld Table 3 Category B-K Component Information Material 1 and Material 2 and Examination Examination Limitations and Results Product Form Product Form Code Coverage Obtained Rolled Plate -

Plate - SA302 36.60%

RPV Attachment Weld Stabilizer Bracket Weld at 270°. Lower and SA533 Gr. B Gr.B adjacent sides of the attachment could not be examined due to access CL1 limitation. No relevant indications were recorded.

to Letter 2.16.036 Page 6 of 7 Cat Item Comp ID No.

C-F-1 C5.11 DC-10-F10R C-F-1 C5.11 DC-14-F31 Item Description Pipe-to-Valve Weld, Line# 18"-

GB-10 Pipe-to-Valve Weld, Line# 10-DC- ~

14 Table 4 Category C-F-1 Component Information Material 1 and Material 2 and Examination Examination Limitations and Results Product Form Product Form.

Code Coverage Obtained Pipe - 18" A358 Valve - 18" 51.19%

Coverage is limited due to single sided exam. Intermittent geometry Gr. TP304 A351 Gr. CF8M 360° Pipe - 1 O" A376 Valve-10" 50.00%

Coverage is limited due to single sided exam. No relevant indications Gr. TP304 A351 Gr. CF8M were recorded.

to Letter 2.16.036 Page 7 of 7 Cat Item Comp ID No.

R-A R1.20 2R-HB-3 R-A R1.20 12-0-24 R-A R1.20 14-A-10A R-A R1.20 14-B-10A R-A R1.11 10R-IA-6 R-A R1.11 10R-IA-7 R-A R1.20 10R-IB-14 R-A R1.20 14R-A-11 Item Description Cross-to-Header Weld, Line# 22"-

DCA-2 Pipe-to Flued Head Weld Valve-to-Pipe DM Weld Valve-to-Pipe DM Weld, Line#* 1 O"-

DBA-14 Pipe-to-Valve Weld, Line # 18" -

DCA-10 Valve-to-Pipe Weld, Line# 18"-

DCA-10 Pipe-to-Flued Head Weld Pipe-to-Valve Weld, Line# 1 O"-

DBA-14 Table 5 Category R-A Component Information Material 1 and Material 2 and Examination Examination Limitations and Results Product Form Product Form Code Coverage Obtained Pipe -22" Pipe-22" 83.57%

Coverage is limited due to single sided exam. No relevant indications SA354 GR.

SA354 GR.

were recorded.

TP316 TP316 Pipe - 6" SA376 Flued Head -

50.00%

Coverage is limited due to single sided exam. Intermittent geometry Gr. TP304 A403 Gr. WP-360° 304 Pipe - 10" A106 Valve -10" 50.00%

Core Spray System carbon steel pipe to stainless steel valve which Gr. B A351 Gr. CF8M had an lnconel 182 welded overlay end preparation on the carbon steel pipe prior to welding. Weld was made utilizing lnconel 182 weld material. No indications associated with IGSCC recorded. Weld root geometry was imaged 360° with the phased array sector scan using angles greater than the maximum 50° beam angle defined for coveraoe.

Pipe - 10" A106 Valve -10" 50.00%

Core Spray System carbon steel pipe to stainless steel valve which Gr. B A351 Gr. CF8M had an lnconel 182 welded overlay end preparation on the carbon steel pipe prior to welding. Weld was made utilizing lnconel 182 weld material. No indications associated with IGSCC recorded. Weld root geometry was imaged 360° with the phased array sector scan using angles greater than the maximum 50° beam angle defined for coveraae.

Pipe -18" A358 Valve-18" 50.00%

Residual Heat Removal (RHR) System stainless steel pipe to stainless Gr. TP304 A351 Gr. CF8M steel valve welds utilizing stainless steel weld metal. Examination coverage is limited on these welds due to the pipe to component configurations. Qualified examination coverage could only be claimed for the base material and weld heat affected zone on the pipe side.

Intermittent oeometrv 3.60° Pipe - 18" A358 Valve -18" 71.88%

Residual Heat Removal (RHR) System stainless steel pipe to stainless Gr. TP304 A351 Gr. CF8M steel valve welds utilizing stainless steel weld metal. Examination coverage is limited on these welds due to the pipe to component configurations. Qualified examination coverage could only be claimed for the base material and weld heat affected zone on the pipe side.

Intermittent aeometrv 360° Pipe - 18" A358 Flued Head -

78.62%

Coverage is limited due to single sided exam. Root geometry and ID Gr. TP304 A403 Gr. WP-undercut recorded 360° intermittently.

304 Pipe - 1 O" SA-Valve-10" 50.00%

Coverage is limited due to single sided exam. No relevant indications 358, Gr. TP316 A351 Gr. CF8M were recorded.

Retrieved from "https://kanterella.com/w/index.php?title=ML16188A269&oldid=5167861"