RBG-44338, Requests Relief from Certain ASME Code,Section Xi,Isi Requirements for Second 10-yr Interval Which Began 971201. W/Requests for Relief Where Full Compliance W/Asme Code, Section Xi,Requirements Not Practical

Requests Relief from Certain ASME Code,Section Xi,Isi Requirements for Second 10-yr Interval Which Began 971201. W/Requests for Relief Where Full Compliance W/Asme Code, Section Xi,Requirements Not Practical

ML20198G880
Person / Time
Site:	River Bend
Issue date:	01/07/1998
From:	King R ENTERGY OPERATIONS, INC.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
RBF1-98-0003, RBF1-98-3, RBG-44338, NUDOCS 9801130140
Download: ML20198G880 (12)

Text

( coi.,,, or,.uo ..

' B S g y 61 Qniergy hYidht"~

F ea (h4 635 INB nick J, King rN$naw&F492ekryeenei January 7,1998 U.S. Nuclear Regulatory Commission Document Control Desk, OPI 17 Washington, DC 20555

Subject:

River Bend Station - Unit i Docket No. 50458 License No. NPF 47 Request for Relief from ASME Code Section XI Inservice Inspection Requirements File Nos.: G9.5, G30.16 RDF1-98-0003 -

RUG-44338 Ladies and Gentlemen:

i Pursuant 10CFR50.55a(g)(5)(iii), River Bend Station (RBS) requests relief from certain ASME l Code,Section XI, Inservice Inspection (ISI) requirements for the second 10-year interval which began December 1,1997. The updated ISI program plan was submitted to the NRC in a letter dated December 2,1997. Requests for Relief are attached for cases where full j compliance with ASME Code,Section XI, requirements is not practical in accordance with 10CFR50.55a(g)(6)(i).

The three requests concern the following requirements:

l RR2-Odl ASME Section XI - Division I,1992 Edition, Table IWB-25001:

Inaccessible welds on RPV Bottom Head RR2 0002 ASME Section XI - Division I,1992 Edition, Table IWC-2500-1: Inability to Examine Nonle Inner Radius Sections on Residual Heat Removal Heat Exchangers p I- RR2-0003 ASME Section XI - Division I,1992 Edition, Table IWC-2500-1:

Inacccssible Pump Barrel Welds on ASME Class 2 Pumps ,

9001130140 990107 PDR ADOCK 05000458 G PDR_

c .

I J

1 Reque6t for Relief from A SME Code Section XI Inservice inspection Requirements  !

January 7,1998.  ;

- RB.521-98 0003 I RBG-44338 -

Page 2 of 2 i

Please note that relief requests similar to those attached were previously approved by the NRC 1 for the first 10-year interval. A comparable relief request for RR2-0001 was approved in an i NRC letter to EOI dated August 8,1988 (Reference TAC No. 62971). Comparable relief  :

- requests for RR2-0002 and RR2 0003 were approved in the RBS Safety Evaluation Report, Supplement 3. Appendix L, Sections K and C, respectively.

Approval of the attached relief requests is requested by September 1,1998 to support outage [

planning for the first outage to occur during the current inspection interval. Should you have

'any questions or need any additional information, please contact Rick McAdams at (504) 336 l

~6224.

. Sincerely,  !

' ), ,

C RJK\RMM\m is '

attachments cc:. Mr. David L. Wigginton .

U. S. Nuclear Regulatory Commission M/S OWFN 13113 Washitgton, DC 20555 NRC Resident inspector (w/o attachment)

P. O. Box 1050 i

. St. Francisville, LA 70775 U. S. Nuclear Regulatory Commission Region IV_ i 611 Ryan Plaza Drive, Suite 400  ;

- Arlington, TX 76011: j Department of Environmental Quality (w/o attachment) 3

. Radiation Protection Division P. O. Box 82135 i

-Baton Rouge, LA 70884-2135 l

-Attn: Administrator i

.. r . . . _ _ _ _ . _ _ ~ _ _ . o

• INSERVICE INSPECTITN (ISI) PCOGRAM REQUEST FOR RELIEF ,

. . RIVER BEND STATION - ENTERGY OPERATIONS, INC.

RELIEF NUMBER: RR2 0001 REVISION: 00 i COMPONENT Reactor Pressure Vessel (RPV) bottom head meridional seam welds (Component Mark Numbers B13 D001 DO and Dil).

CODE ASME Section XI . Division I,1992 Edition  ;

ASME SF.CTION XI CODE REQUIREMENTS Table IWB 25001, Category B.A, item Number Bl.22: Volumetric

~

INFORMATION TO SUPPORT THE DETERMINATION THAT CODE REQUIREMENT CANNOT BE MET Inservice volumetric (ultrasonic) examination coverage of meridional welds Bl3 D001 DO and DH cannot be performed due to installed control rod drive (CRD) assemblies per.?trating through the bottom vessel head.

ALTERNATIVE SOLUTIONS None.

REASON WHY RELIEF SHOULD BE GRANTED

1. Preservice inspection was performed by manual ultrasonic examination with full weld coverage and no recordable indications. This inspection was performed prior to CRD installation.

2. The installed CRD housings physically prohibit a meaningful volumetric examination to be performed on the DO and DH vessel welds.

3. Inspection of the weld (s) from beneath the bottom head will require removal of portions of the control rod drive (CRD). Performing the required examinations is impractical and would result in undue hardship, i.e., increase ALARA consideration and extended outage duration, without a compensating increase in safety.

4. This area is VT 2 examined during each refueling outage.

Page Number: 1 Date: 12/2/97 J

.- INSERVICE INSPECTION (ISI) PROGRAM

- REQUEST FOR RELIEF RIVER HEND STATION ENTERGY OPERATIONS,INC.

RELIEF NUMBER: RR2-0001 REVISION: 00 >

l FIGURE 1 f

r

)( 0 fs' 'M '

> 8 l li

. .( fb L.m_ _ _ m. -

Lw

%h s . g 0~ ~

~4 4., ,

~

s 02 ] I I

i h @_ f f 3_ 3 9i y j

,,....(

b h

.$. -[

,s s s s s =

ch bg

_= -

s, ifo

\J- - *4 l

I l

l1 e mmmmmmmmmmmmmu imummmmmmmmu

- n 4 2

9 q

- 1 Im O l. Q u j u

(

g - -in um,n n mm im.ummmm.

:-mm --

l mum

. g --

imumm ; ; ; ;p WW l ----.--

.........., 'A, iD  ;

m s x x m .. ,,,,,,,,,,

d y

1-y l

. *. . . .,;is. ' o y ..s-  ;'. . .

/ . ' M.

i ,

"h,..~., __

$k

' id -

s I 2 Page Number: 2 Date: 12/2/97

. . , . , -- -n-.. - . . . - , , . - . . , , , . , - - - - - , , . , . , , . - ,, -..., ~,.,,., --->

i - ),'1 ,ii i,l :I;i, yj ili 4 ';j ii. i4I1 q!i3 iii,4j. j j j 1l!11i 'h4;.i> ii

• - awW>mQb .E,gwD,6_oZ ll=gA g .

l 6 C )i@e n o g g{I gmlsIb n n h e$.

k >l, s, a OwZ2Wbg<H Oyew7yw g Q yw o. -

M%,g.ws . n.

Eo2.Wg -

2g_M.oE 3 .

g.cggWN

.n .

K s

S -

.en 9 S -

a uLk" M 3 -

5 .

.e.m _

nm O e Hu o c

3 o

, 1 g -.

me s s

e t

f 3

} mse n

0s

)'

N se mH w1

,s O I

n o

T H

+-

g[ - -

- \pg l

~

Uo

.* # O 3

~

O O

Fo t

Ne r r r<

- %e D O7

. 'n /s v s .fg O ss #s G m

.s r

v i-" s <

e Ne

/s v i,,rg O, u s n

e \

/ n ,e\s g o a

.5

,s

i'Ja?,2

,rs 's /s es sg

,s';j i,

) ss /s

'i es a

!s 2

u 1l

.s

" , vs r e

,% ,v s

['

e

' e %e s /s < v i,sg l

e %f O.,vn

%e

1. s

%e es ' ,!s :

%e  %

/ n o z

e t

vs e sr ye

,s ,rs s el%e

1. s lv e' s ,v g j

O~,ye ss Ne

/s Ne'yelN es /s / n o-  :

i e s,e \e 'e Ne e Nf r %e %e %e N s =.

8 vs ,

ss 's /s l d v i,rg ,

O ,,nui,#s ,es /s  :

/ n .

i

- 1 e se ye 'e %e l l r'yf m ,

ne %e f %elN 0 s f vs ,s rs 's /s v s sg O ss /s vs /s / n .i" e sr s< rr e se e %f s Ne  %# %e \ u =

.$ y, , si -" s i rs lv i,sg,,O ,uk /s , ,es !s  :

/ n

. 3 3

{ ,sr ye'3elNe

-s s ss 's #s l

r'yf,[,ye v s sg ) ss

%e

1. s es e \el%

/s / n 4

=.

I1 e e re 'e %e e rf e .%e %e \e  %

5 vs ,%

ss'a's 7s v i,rg ,O,,v s /s ,s ,/s ; / n _

f

' Nr yr'del%e i

%r'yf,$,y<

%e e'ye, ,-

,k vi '< 6 v,  ? -< ri t v, e e %f p

%e Ne # \e N# _

f ss "s I

/s vi,sg ) ,,

un /s es ..

2

' sr'yf O, ye

? 1 f

'e %e Le

's #s es rg rs /s

', M- _ a a- W,

_M t W

_ - _ _8 - X' ee 3

, g , , U *

• g " , , g ,

, - s Itp 8 -4une s

t ve 01 9i 0 sex" s

l

- 0es*m rv g .

o 4eew**

a t e 4

. 9 ve emw* s '  :

sse*

as lw e es g

==%s= s aa ss 5

w e an y m ege ses=-

m i-3  :

A4as, s z$S".- m OeM - .. R *o

'> ' ';i, . . '}!!5, Li, >, Jt! ll '!I ,t !,

i INSERVICE INSPECTIEN (ISI) PROGRAM REQUEST FIR RELIEF

, . RIVER BEND STATION ENTERGY OPERATIONS INC.

RELIEF NUMBER: RR2-0002 REVISION: 00 COMPONENT Nozzle inner radius sections for Residual }{ eat Removal (RiiS) IIcat Exchangers A, B, C, and D.

Component Mark Numbers:

E12 EB001 A 3.743 A (Figure 1) E12 JB001 A 3.744 A (Figure 2)

' E12 EB0018 3.743 A (Figure 1) E12 EB0018 3.744 A (Figure 2)

E12 EB001C 3.743 A (Figure 1) E12 EB001C 3.744 A (Figure 2)

E12 EB001D 3.743 A (Figure 1) -

E12-EB001D 3.744 A (Figure 2) -

CODE ASME Section XI Division 1,1992 Edition ASME SECTION XI CODE REQUIREMENTS Table IWC 25001, Category C B, item Number C2.22: Volumetric INFORMATION TO SUPPORT THE DETERMINATION TifAT CODE REQUIREMENT CANNOT BE MET The heat exchanger nozzles contain inherent geometric constraints which limit the ability to perform the code required volumetric examinations. Due to the thickness and nozzle size, examinations cannot be performed.

ALTERNATIVE SOLUTIONS If tube bundles are removed from the heat exchangers for maintenance, then surface examinations will be performed as an alternative examination on the subject inner radius areas.

REASON WilV RELIEF SHOULD BE GRANTED Based on the configuration of the nozzle and heat exchanger, the inner radius areas cannot receive a code required examination. Refer to Figures I and 2 for detailed component configuration.

Page Number: 1 Date: 12/2/97

f r

i

. INSERVICE INSPECTION (ISI) PROGRAM

, REQUEST FOR RELIEF ]

1 RIVER BEND STATION ENTERGY OPERATIONS,INC.

i RELIEF NUMBER

RR2 0002 REVISION: 00 FIGURE I j f I f  !

1. . . . __!! 4 _

y ..

3 $ w a l 1 g h

!f )h w- J a =

1

• j=

y =

! g

}.

.V L I -

d W E q

h sM a w f

.s_____., g te t

i I __ -__

5 d

i -

.i M..

9 as h il e . _ _ _ . . ? ____ _.. i

.N 'f.

o .,

% g f

~

v i

{ J.a - .

t -

84 z --

n.. w ,

g j.

4

.e --

d .

N 4

e$

g Page Number: 2 Date: 12/2/97

- ._. . _ - _ _ - = - _ - - . . - _ _ _ - _ - . - _ _ _ - _ _ - .

INSERVICE INSPECTION (ISI) PROGRAM REQUEST FOR RELIEF RIVER BEND STATION ENTERGY OPERATIONS,INC. ,

RELIEF NUMBER: RR2-0002 REVISION: 00 FIGURE 2 4

5

- b g 6 < _

____ g -_

g...

% 4 u 40 d d t $

• j 'A 8 blaa w *

• 4, 1 i

d, ..

>=

l" 5 k .

$ I sw i a- o ,

l 5 a

M' eg -

If

d 54,1r

• t +

d . .5 -'

• d Y

$d 2n

.l' 4s y____

d U h i.

a y -

g gi A ..

y -

. i

• 1l 3

I l

~

l

- z.2 1

Page Number: 3 Date: 12/2/97

I

'* INSE5VICE INSPECTION (ISI) PROGRAM i

• REQUEST FOR RELIEF RIVER BEND STATION . ENTERGY OPERATIONS,INC.

RELIEF NUMBER: RR2-0003 REVISION: 00 .

COMPONElq Pressure retaining welds on the following ASME Class 2 pumps:

Residuallleat Removal (RilS)

E12 PC002A E12 PC002B E12 PC002C liigh Pressure Core Spray (CSli)

~

E22 PC001 ,

Low Pressure Spray (CSL)

E21 PC001 CODE ASME Section XI . Division 1,1992 Edition ASME SECTION XI CODE REQUIREMENTS Table IWC 2500-1, Category C-0, item Number C6.10: Surface INFORMATION TO SUPPORT THE DETERMINATION THAT CODE REQUIREMENT CANNOT BE MET Due to the pump barrel welds being encased in the concrete, under the floor, these welds are inaccessible to required examinations. See Figure I for typical pump configuration.

ALTERNATIVE SOLUTIONS If the subject pumps are disassembled for maintenance, then the required examinations will be performed.

REASON WHY RELIEF SHOULD BE GRANTED Welds encased in concrete cannot be accessed from exterior and the only access to the pump interior is during pump disassembly, Page Number: 1 Date: 12/2/97

- INSERVICE INSPECTIZN (ISI) PROGRAM r

• REQUEST FOR RELIEF '

RIVER BEND STATION . ENTERGY OPERATIONS, INC.

RELIEF NUMBER: RR2-0003 REVISION: 00  ;

System: CSl{

Component Mark Number Connauration E22 PC001 E22 PC001 SB-01 Pump Bartel Shell Weld E22 PC001 E22 PC001 SB 02 Pump Barrel Shell Weld E22 PC00i E22 PC001 SB 03 Pump Barrel Shell Weld E22 PC001 E22 PC001 SB-04 Pump Barrel Shell Weld E22.PC001 E22 PC001 SB 05 Pump Barrel Shell Weld E22 PC001 E22 PC001-SB 06 Pump Barrel Shell Weld E22 PC001 E22 PC001 SB 07 Purdi i Barrel Shell Weld E22 PC001 E22 PC001 SB 08 Pump Barrel Shell Weld E22 PC001 E22 PC001 SB-09 Pump Barrel Shell Weld E22 PC001 E22 PC001 SB 10 Pump Barrel Shell Weld E22 PC001 E22 PC001-SB 11 Pump Barrel Shell Weld E22 PC001 E22 PC001 SB 12 Pump Barrel Shell Weld System: CSL Componest Mark Number Connauration E21 PC001 E21 PC001 SB-01 Pump Barrel Shell Weld E21 PC001 E21 PC001 SB-02 Pump Barrel Shell Weld E21 PC001 E21 PC001-SB-03 Pump Barrel Shell Weld E21 PC001 E21 PC001-SB 04 Pump Barrel Shell Weld E21 PC001 E21 PC001 SB-05 Pump Barrel Shell Weld E21 PC001 E21 PC001 SB-06 Pump Barrel Shell Weld E21 PC001 E21 PC001 SB-07 Pump Banel Shell Weld E21 PC001 E21 PC001 SB-08 Pump Barrel Shell Weld E21 PC001 E21 PC001 SB-09 Pump Barrel Shell Weld E21 PC001 E21 PC001-SB-10 Pump Barrel Shell Weld E21 PC001 E21 PC001 SB 11 Pump Barrel Shell Weld E21 PC001 E21 PC001 SB 12 Pump Barrel Shell Weld 9

Page Number: 2 Date: 12/2/97 i

l

!NSE3VICE INSPECTIEN (ISI) PROGRAM I REQUEST FOR RELIEF RIVER BEND STATION . ENTERGY OPERATIONS, INC.

I RELIEF NUMRER: RR2-0003 REVISION: 00 -

System: RHS ,

Component - Mark Number Connauration E12 PC002A E12 PC002A SB-01 Pump Barrel Shell Weld E12 PC002A E12 PC002A SB 02 Pump Bmel Shell Weld E12 PC002A E12 PC002A SB 03 Pump Barrel Shell Weld E12 PC002A E12 PC002A-SB 04 Pump Barrel Shell Weld E12 PC002A E12 PC002A SB-05 Pump Barrel Shell Weld E12 PC002A E12 PC002A SB 06 Pump Barre! Shell Weld E12 PC002A E12 PC002A SB-07 Pump Barrel Shell Weld . .

E12 PC002A E12 PC002A SB-08 Pump Barrel Shell Weld E12 PC002A E12 PC002A SB 09 Pump Barrel Shell Weld E12 PC002A E12 PC002A SB 10 Pump Barrel Shell Weld E12 PC002A E12 PC002A SB l1 Pump Barrel Shell Weld E12 PC002A E12 PC002A SB 12 Pump Barrel Shell Weld E12 PC002B E12 PC002B SB 01 Pump Barrel Shell Weld E12 PC002B E12 PC002B.SB 02 Pump Barrel Shell Weld E12 PC002B E12 PC002B SB-03 Pump Barrel Shell Weld E12 PC002B E12 PC002B SB 04 Pump Bmel Shell Weld E12 PC0028 E12 PC002B SB 05 Pump Barrel Shell Weld E12 PC002B E12 PC002B SB 06 Pump Banet Shell Weld E12 PC002B E12 PC002B SB-07 Pump Barrel Shell Weld E12 PC002B E12 PC0028-SB 08 Pump Barrel Shell Weld E12 PC002B E12 PC0028 SB 09 Pump Barrel Shell Weld E12 PC002B E12 PC002B SB 10 Pump Barrel Shell Weld E12 PC002B E12 PC002B SB 11 Pump Barrel Shell Weld E12 PC002B E12 PC002B SB 12 Pump Barrel Shell Weld E12 PC002C E12 PC002C SH-01 Pump Banel Shell Weld E12 PC002C E12 PC002C-SB 02 Pump Banet Shell Weld El2 PC002C E12 PC002C-SB-03 Pump Barrel Shell Weld E12 PC002C E12 PC002C SB-04 Pump Barrel Shell Weld E12 PC002C E12 PC002C-SB 05 Pump Barrel Shell Weld '

E12 PC002C E12 PC002C-SB 06 Pump Barrel Shell Weld E12 PC002C E12 PC002C SB-07 Pump Barrel Shell Weld E12 PC002C El2 PC002C SB 08 Pump Banel Shell Weld E12 PC002C E12 PC002C SB-09 Pump Barrel Shell Weld '

E12 PC002C E12 PC002C-SB 10 Pump Barrel Shell Weld E12 PC002C - E12 PC002C-SB 11 Pump Barrel Shell Weld E12 PC002C E12 PC002C SB 12 Pump Barrel Shell Weld PageNumber: 3 Date: 12/2/97

/

INSEkVICE INSPECTION (1SI) PROGRAM REQUEST FOR RELIEF

- - RIVER BEND STATION . ENTERGY OPERATIONS, INC, RELIEF NUMBER: RR2-0003 REVISION: 00 FIGURE 1 TYPICAL PUMP CONFIGURATION N1 '

8

• .<q J g , .. .

e 5

• v I ];-

5, n

$a

/ 9

$ j -

y

. i /

i J u .  !

i ;

s e

W

- t .

y J'

bg <' M a.

\ /

y

.a ,,

t d

L ff esi s 0'

i 4 .. , 3 $

l I g V

f" Y, w laut:F

.- ,Amy p

}g {

• y l j jfFb] *!

t. . i y *# v I g

. ...y

$ ,!I t, th i -

1 -

ee 9 - N e m- 'flA E

e s ,

a !!g t e _ ..i .

i N

Page Nurnber: 4 Date: 12/2/97

~ ..