ML17320A556

Evaluation of Acceptability of Reactor Vessel Head Lift Rig,Reactor Vessel Internals Lift Rig,Load Cell & Load Cell Linkage to Requirements of NUREG-0612

ML17320A556
Person / Time
Site:	Cook
Issue date:	04/30/1983
From:	John Marshall, Sandner H WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP.
To:
Shared Package
ML17320A555	List: ML17320A554 ML17320A556
References
REF-GTECI-A-36, REF-GTECI-SF, RTR-NUREG-0612, RTR-NUREG-612, TASK-A-36, TASK-OR AEP:NRC:0514G, AEP:NRC:514G, WCAP-10230, NUDOCS 8307110295
Download: ML17320A556 (4)

Text

ATTACHMENT NO.

2 TO AEP:NRC:0514G INDIANA & MICHIGAN ELECTRIC COMPANY'S RESPONSES TO THE RECOMMENDATIONS MADE IN SECTION 6 Res onse to Item 6.1 ANSI N14.6 Section 5.1.3 Maintenance and inspection procedures will be revised to include a visual inspection of the lift rig in the preparation of the equipment for use.

Section 5.1.4 Maintenance procedures for the reactor vessel and internal lift rigs are outlined in" maintenance procedures MHP 5021.001.003A

& B.

Section 5.1.5 5.1.5.1 and 5.1.5.2 It is obvious from their designs, size and weights, that these rigs are special lifting devices and can only be used for their intended purpose.

The size of the rigs precludes their removal from the containment unless dismantled.

Maintenance procedure MHP 5021.001.003 A&B will indicate the limitation wherein dismantling requires a special procedure approved by the PNSRC.

All removable pins of subassemblies will be marked and identified by unit.

Section 5.1.6 5.1,7 and 5.1.8 Operating and maintenance instructions will be reviewed to ensure that they contain the requirement to keep maintenance logs and record repair and testing history incidents'es onse to Item 6.2 This inspection was initially performed by Westinghouse.

Res onse to Item 6.3 Indiana

& Michigan Electric Co. feels that the Westinghouse recommendation to visually inspect welds is not responsive to NUREG-0612.

Instead of this visual inspection, we will conduct a program of non-destructive 8307110895 830705 PDR ADOCK 05000315 P

PDR

4J tI

examination of load bearing welds to ensure that all welds will be examined over a normal inservice inspection interval of 10 years in a manner consistent with the ASHE Boiler and Pressure Vessel Codes for Class 2

Component Supports.

Dimensional checking is not included in our program since these structures are large (about 14 feet diameter by 40 feet high) and the results of dimensional checking would be questionable.

Other checks on critical load path parts, such as pins, are also not included since an examination for these items would require disassembly of the special liftdevices.

Res onse to Item 6.4 This item is covered in the previous discussion.

(Response to 6.3)

Res onse to Item 6.5 The non-destructive examination program, discussed in 6.3 above, will include the head and internal lift rig sling blocks. If any lamellar tearing is indicated the sling blocks will be changed to a forged block with welded side lugs to reduce the number of welds and eliminate this concern.

Res onse to Item 6.6 No change will be made to the reactor vessel internals lift rig.

IAvr ATTACHHEHT HP

~

~

N~~

l I

gaol

- jw

--)'a I

I

)V ~

~OAI Slf 44 AN A IPPAVCR I j CD 4

O

)

r<<WAt)')'

o)oj)

SIOIAI I I 1

k

~lt'loa!I C4 fA WNT

~~A<a<reA

. ~ I

>>l 7

J C't~

I

),)

vav ev Vt

)

C E~t'~'>>:>>i"~+

I'llm

! IIPI!

t ALOL144 4 Ar)avg <<Ttt

~ltlo I>>A AOVAlit 4

~ v<<ar\\

~<<OV LO IOA L.OVCL

~w La@I)a)

RIP ALT)I allo vo va LOO Lra LATRL KLI<<1aria

/)

+t<<OCAf 1)rl~'

ef NC alt V

~e>>

Ol

->aGl)>>

~4)

TA )la r

~H E3 I

/>>

Aa t

>>rv)alj TWIT ~

<parrel ov C)L)

$i g ~.a llo,.~gt

~hc&'

];jj +

lI) 'I c I!+1 j, vga jt. ).')D

']o!('ILI

$ ~

rfjava/) art )

peal'lola k AAC I

)'ll

~ I'I Cia< ~

14 At

~ 11 I ~

1 4 O)T PDD f ~

LAT r ~

I

\\ 1 I I

I

)

I l

I

~LVV Ol TVTO~

4114*4C TAO>>

)

I

~ Pll 1*~ I I

a La ~

oo ~

4 I '.

)

~

rc. o>

~ 1

~ ~ LR a

OLVLI I

\\

I Ill1I 0 fo<<LIT')Sl eqt

)>><<I A

~ji ear 14 I

O.l j srl- ~ a"

~

'14$

v <<a IA TlrCO <rl I

)II 1 C.wr!LC I

I

~

I I

l~~

L I

j j

l3) l4

~VR SIIOH llr<CfIALNll LTlav a)<<ao)OA 'IIOP 'vwll Pool 'illaR LS 11$

j I, Al

! )COCA

~ICI Ll

~OIAMIII I

OSP

~1 U

C 4 OLOL LOVOOIOOI I

CI)

Clf C)$

'IIIC)C ILL<<1&

I I

C,t COAIO Ol

.<<:C>>'

!LLIL

. = ~ gj.

~wo lr V>>V4 R I

cr

~P,H

~LTT j CC CI)

'I [ l 4 ev

~4>>

4!

ip!i I',

TPNI C'

'f Tl~ I ~

4) LTVL I

'larlf Pall 4) Ol I

~ lO

~ f

')24 ~XC

-Cr)

M)O V

'j I C,.r

i. 3 e'j

, )

I IO'W

)) P arr<<V O,C<<e j

l+O

~

3~

~ 41 OA Ta a O<<AAR I

'I', "1>>

)D PP--)

j'TRAL Ct

'1 RA Ik)'3 63 3

)~LS~) O'A

~Ivra>>

TM 01

~

01 Oa GI 04 8

4 4l 1

I I

C v>>

~

0

i) t I

l I i-. f'jj.)..pj

'..jj 'ig,

..!!j 1

Irl;1\\ =

L r

r>>L OLAAR V l 4

~

rv)oa>>ra)

)

~

LL

'<PIC<<

V>>OS<

Orf Cl CI) )

ROIS ~ TR ~ '<<TA~ >>

I 1 IO SC!

(5 LV VIC'TVLO a VA

'1 A

~ 1

)

K S

I I